From f910d5e09bc99fa81166656e69f9f83f6dfa79db Mon Sep 17 00:00:00 2001 From: Sven Strickroth Date: Tue, 4 Sep 2018 18:01:50 +0200 Subject: [PATCH 001/403] Silence compiler warning about using an uninitialized variable Signed-off-by: Sven Strickroth --- compat/mingw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compat/mingw.c b/compat/mingw.c index 25ef94226f..8d0165506a 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -828,7 +828,7 @@ static int has_valid_directory_prefix(wchar_t *wfilename) int mingw_lstat(const char *file_name, struct stat *buf) { WIN32_FILE_ATTRIBUTE_DATA fdata; - WIN32_FIND_DATAW findbuf; + WIN32_FIND_DATAW findbuf = { 0 }; wchar_t wfilename[MAX_LONG_PATH]; int wlen = xutftowcs_long_path(wfilename, file_name); if (wlen < 0) From 199667b2ac3b60e9ae995b89f62189f2c66c0318 Mon Sep 17 00:00:00 2001 From: Paul-Sebastian Ungureanu Date: Fri, 31 Aug 2018 00:40:31 +0300 Subject: [PATCH 002/403] sha1-name.c: add `get_oidf()` which acts like `get_oid()` Compared to `get_oid()`, `get_oidf()` has as parameters a pointer to `object_id`, a printf format string and additional arguments. This will help simplify the code in subsequent commits. Original-idea-by: Johannes Schindelin Signed-off-by: Paul-Sebastian Ungureanu Signed-off-by: Junio C Hamano --- cache.h | 1 + sha1-name.c | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/cache.h b/cache.h index 4d014541ab..0276fae1c2 100644 --- a/cache.h +++ b/cache.h @@ -1319,6 +1319,7 @@ struct object_context { GET_OID_BLOB) extern int get_oid(const char *str, struct object_id *oid); +extern int get_oidf(struct object_id *oid, const char *fmt, ...); extern int get_oid_commit(const char *str, struct object_id *oid); extern int get_oid_committish(const char *str, struct object_id *oid); extern int get_oid_tree(const char *str, struct object_id *oid); diff --git a/sha1-name.c b/sha1-name.c index c9cc1318b7..261b960bbd 100644 --- a/sha1-name.c +++ b/sha1-name.c @@ -1471,6 +1471,25 @@ int get_oid(const char *name, struct object_id *oid) return get_oid_with_context(name, 0, oid, &unused); } +/* + * This returns a non-zero value if the string (built using printf + * format and the given arguments) is not a valid object. + */ +int get_oidf(struct object_id *oid, const char *fmt, ...) +{ + va_list ap; + int ret; + struct strbuf sb = STRBUF_INIT; + + va_start(ap, fmt); + strbuf_vaddf(&sb, fmt, ap); + va_end(ap); + + ret = get_oid(sb.buf, oid); + strbuf_release(&sb); + + return ret; +} /* * Many callers know that the user meant to name a commit-ish by From 3bbe9be3d6bc071398d3aa70fa1e8ba4bc219e40 Mon Sep 17 00:00:00 2001 From: Joel Teichroeb Date: Fri, 31 Aug 2018 00:40:32 +0300 Subject: [PATCH 003/403] stash: improve option parsing test coverage In preparation for converting the stash command incrementally to a builtin command, this patch improves test coverage of the option parsing. Both for having too many parameters, or too few. Signed-off-by: Joel Teichroeb Signed-off-by: Paul-Sebastian Ungureanu Signed-off-by: Junio C Hamano --- t/t3903-stash.sh | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh index 6450bc6698..3eaca65053 100755 --- a/t/t3903-stash.sh +++ b/t/t3903-stash.sh @@ -444,6 +444,36 @@ test_expect_failure 'stash file to directory' ' test foo = "$(cat file/file)" ' +test_expect_success 'giving too many ref arguments does not modify files' ' + git stash clear && + test_when_finished "git reset --hard HEAD" && + echo foo >file2 && + git stash && + echo bar >file2 && + git stash && + test-tool chmtime =123456789 file2 && + for type in apply pop "branch stash-branch" + do + test_must_fail git stash $type stash@{0} stash@{1} 2>err && + test_i18ngrep "Too many revisions" err && + test 123456789 = $(test-tool chmtime -g file2) || return 1 + done +' + +test_expect_success 'drop: too many arguments errors out (does nothing)' ' + git stash list >expect && + test_must_fail git stash drop stash@{0} stash@{1} 2>err && + test_i18ngrep "Too many revisions" err && + git stash list >actual && + test_cmp expect actual +' + +test_expect_success 'show: too many arguments errors out (does nothing)' ' + test_must_fail git stash show stash@{0} stash@{1} 2>err 1>out && + test_i18ngrep "Too many revisions" err && + test_must_be_empty out +' + test_expect_success 'stash create - no changes' ' git stash clear && test_when_finished "git reset --hard HEAD" && @@ -479,6 +509,11 @@ test_expect_success 'stash branch - stashes on stack, stash-like argument' ' test $(git ls-files --modified | wc -l) -eq 1 ' +test_expect_success 'stash branch complains with no arguments' ' + test_must_fail git stash branch 2>err && + test_i18ngrep "No branch name specified" err +' + test_expect_success 'stash show format defaults to --stat' ' git stash clear && test_when_finished "git reset --hard HEAD" && From fb749d90c878e20267429a27b9b47f4fc3875727 Mon Sep 17 00:00:00 2001 From: Paul-Sebastian Ungureanu Date: Fri, 31 Aug 2018 00:40:33 +0300 Subject: [PATCH 004/403] stash: update test cases conform to coding guidelines Removed whitespaces after redirection operators. Signed-off-by: Paul-Sebastian Ungureanu Signed-off-by: Junio C Hamano --- t/t3903-stash.sh | 120 ++++++++++++++++++++++++----------------------- 1 file changed, 61 insertions(+), 59 deletions(-) diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh index 3eaca65053..8fc182c77d 100755 --- a/t/t3903-stash.sh +++ b/t/t3903-stash.sh @@ -8,22 +8,22 @@ test_description='Test git stash' . ./test-lib.sh test_expect_success 'stash some dirty working directory' ' - echo 1 > file && + echo 1 >file && git add file && echo unrelated >other-file && git add other-file && test_tick && git commit -m initial && - echo 2 > file && + echo 2 >file && git add file && - echo 3 > file && + echo 3 >file && test_tick && git stash && git diff-files --quiet && git diff-index --cached --quiet HEAD ' -cat > expect << EOF +cat >expect < output && + git diff stash^2..stash >output && test_cmp output expect ' @@ -74,7 +74,7 @@ test_expect_success 'apply stashed changes' ' test_expect_success 'apply stashed changes (including index)' ' git reset --hard HEAD^ && - echo 6 > other-file && + echo 6 >other-file && git add other-file && test_tick && git commit -m other-file && @@ -99,12 +99,12 @@ test_expect_success 'stash drop complains of extra options' ' test_expect_success 'drop top stash' ' git reset --hard && - git stash list > stashlist1 && - echo 7 > file && + git stash list >expected && + echo 7 >file && git stash && git stash drop && - git stash list > stashlist2 && - test_cmp stashlist1 stashlist2 && + git stash list >actual && + test_cmp expected actual && git stash apply && test 3 = $(cat file) && test 1 = $(git show :file) && @@ -113,9 +113,9 @@ test_expect_success 'drop top stash' ' test_expect_success 'drop middle stash' ' git reset --hard && - echo 8 > file && + echo 8 >file && git stash && - echo 9 > file && + echo 9 >file && git stash && git stash drop stash@{1} && test 2 = $(git stash list | wc -l) && @@ -160,7 +160,7 @@ test_expect_success 'stash pop' ' test 0 = $(git stash list | wc -l) ' -cat > expect << EOF +cat >expect < expect1 << EOF +cat >expect1 < expect2 << EOF +cat >expect2 < file && + echo foo >file && git commit file -m first && - echo bar > file && - echo bar2 > file2 && + echo bar >file && + echo bar2 >file2 && git add file2 && git stash && - echo baz > file && + echo baz >file && git commit file -m second && git stash branch stashbranch && test refs/heads/stashbranch = $(git symbolic-ref HEAD) && test $(git rev-parse HEAD) = $(git rev-parse master^) && - git diff --cached > output && + git diff --cached >output && test_cmp output expect && - git diff > output && + git diff >output && test_cmp output expect1 && git add file && git commit -m alternate\ second && - git diff master..stashbranch > output && + git diff master..stashbranch >output && test_cmp output expect2 && test 0 = $(git stash list | wc -l) ' test_expect_success 'apply -q is quiet' ' - echo foo > file && + echo foo >file && git stash && - git stash apply -q > output.out 2>&1 && + git stash apply -q >output.out 2>&1 && test_must_be_empty output.out ' test_expect_success 'save -q is quiet' ' - git stash save --quiet > output.out 2>&1 && + git stash save --quiet >output.out 2>&1 && test_must_be_empty output.out ' test_expect_success 'pop -q is quiet' ' - git stash pop -q > output.out 2>&1 && + git stash pop -q >output.out 2>&1 && test_must_be_empty output.out ' test_expect_success 'pop -q --index works and is quiet' ' - echo foo > file && + echo foo >file && git add file && git stash save --quiet && - git stash pop -q --index > output.out 2>&1 && + git stash pop -q --index >output.out 2>&1 && test foo = "$(git show :file)" && test_must_be_empty output.out ' test_expect_success 'drop -q is quiet' ' git stash && - git stash drop -q > output.out 2>&1 && + git stash drop -q >output.out 2>&1 && test_must_be_empty output.out ' test_expect_success 'stash -k' ' - echo bar3 > file && - echo bar4 > file2 && + echo bar3 >file && + echo bar4 >file2 && git add file2 && git stash -k && test bar,bar4 = $(cat file),$(cat file2) ' test_expect_success 'stash --no-keep-index' ' - echo bar33 > file && - echo bar44 > file2 && + echo bar33 >file && + echo bar44 >file2 && git add file2 && git stash --no-keep-index && test bar,bar2 = $(cat file),$(cat file2) ' test_expect_success 'stash --invalid-option' ' - echo bar5 > file && - echo bar6 > file2 && + echo bar5 >file && + echo bar6 >file2 && git add file2 && test_must_fail git stash --invalid-option && test_must_fail git stash save --invalid-option && @@ -486,11 +486,12 @@ test_expect_success 'stash branch - no stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && STASH_ID=$(git stash create) && git reset --hard && git stash branch stash-branch ${STASH_ID} && - test_when_finished "git reset --hard HEAD && git checkout master && git branch -D stash-branch" && + test_when_finished "git reset --hard HEAD && git checkout master && + git branch -D stash-branch" && test $(git ls-files --modified | wc -l) -eq 1 ' @@ -498,14 +499,15 @@ test_expect_success 'stash branch - stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && git stash && test_when_finished "git stash drop" && - echo bar >> file && + echo bar >>file && STASH_ID=$(git stash create) && git reset --hard && git stash branch stash-branch ${STASH_ID} && - test_when_finished "git reset --hard HEAD && git checkout master && git branch -D stash-branch" && + test_when_finished "git reset --hard HEAD && git checkout master && + git branch -D stash-branch" && test $(git ls-files --modified | wc -l) -eq 1 ' @@ -518,10 +520,10 @@ test_expect_success 'stash show format defaults to --stat' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && git stash && test_when_finished "git stash drop" && - echo bar >> file && + echo bar >>file && STASH_ID=$(git stash create) && git reset --hard && cat >expected <<-EOF && @@ -536,10 +538,10 @@ test_expect_success 'stash show - stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && git stash && test_when_finished "git stash drop" && - echo bar >> file && + echo bar >>file && STASH_ID=$(git stash create) && git reset --hard && echo "1 0 file" >expected && @@ -551,10 +553,10 @@ test_expect_success 'stash show -p - stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && git stash && test_when_finished "git stash drop" && - echo bar >> file && + echo bar >>file && STASH_ID=$(git stash create) && git reset --hard && cat >expected <<-EOF && @@ -574,7 +576,7 @@ test_expect_success 'stash show - no stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && STASH_ID=$(git stash create) && git reset --hard && echo "1 0 file" >expected && @@ -586,7 +588,7 @@ test_expect_success 'stash show -p - no stashes on stack, stash-like argument' ' git stash clear && test_when_finished "git reset --hard HEAD" && git reset --hard && - echo foo >> file && + echo foo >>file && STASH_ID=$(git stash create) && git reset --hard && cat >expected <<-EOF && @@ -606,9 +608,9 @@ test_expect_success 'stash drop - fail early if specified stash is not a stash r git stash clear && test_when_finished "git reset --hard HEAD && git stash clear" && git reset --hard && - echo foo > file && + echo foo >file && git stash && - echo bar > file && + echo bar >file && git stash && test_must_fail git stash drop $(git rev-parse stash@{0}) && git stash pop && @@ -620,9 +622,9 @@ test_expect_success 'stash pop - fail early if specified stash is not a stash re git stash clear && test_when_finished "git reset --hard HEAD && git stash clear" && git reset --hard && - echo foo > file && + echo foo >file && git stash && - echo bar > file && + echo bar >file && git stash && test_must_fail git stash pop $(git rev-parse stash@{0}) && git stash pop && @@ -632,8 +634,8 @@ test_expect_success 'stash pop - fail early if specified stash is not a stash re test_expect_success 'ref with non-existent reflog' ' git stash clear && - echo bar5 > file && - echo bar6 > file2 && + echo bar5 >file && + echo bar6 >file2 && git add file2 && git stash && test_must_fail git rev-parse --quiet --verify does-not-exist && @@ -653,8 +655,8 @@ test_expect_success 'ref with non-existent reflog' ' test_expect_success 'invalid ref of the form stash@{n}, n >= N' ' git stash clear && test_must_fail git stash drop stash@{0} && - echo bar5 > file && - echo bar6 > file2 && + echo bar5 >file && + echo bar6 >file2 && git add file2 && git stash && test_must_fail git stash drop stash@{1} && @@ -724,7 +726,7 @@ test_expect_success 'stash apply shows status same as git status (relative to cu test_i18ncmp expect actual ' -cat > expect << EOF +cat >expect < HEAD && + echo file-not-a-ref >HEAD && git add HEAD && test_tick && git stash && git diff-files --quiet && git diff-index --cached --quiet HEAD && test "$(git rev-parse stash^)" = "$(git rev-parse HEAD)" && - git diff stash^..stash > output && + git diff stash^..stash >output && test_cmp output expect ' From a289a3a4dff45c0a521e28235644cc4e30cae715 Mon Sep 17 00:00:00 2001 From: Paul-Sebastian Ungureanu Date: Fri, 31 Aug 2018 00:40:34 +0300 Subject: [PATCH 005/403] stash: rename test cases to be more descriptive Rename some test cases' labels to be more descriptive and under 80 characters per line. Signed-off-by: Paul-Sebastian Ungureanu Signed-off-by: Junio C Hamano --- t/t3903-stash.sh | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh index 8fc182c77d..4fe3717675 100755 --- a/t/t3903-stash.sh +++ b/t/t3903-stash.sh @@ -604,7 +604,7 @@ test_expect_success 'stash show -p - no stashes on stack, stash-like argument' ' test_cmp expected actual ' -test_expect_success 'stash drop - fail early if specified stash is not a stash reference' ' +test_expect_success 'drop: fail early if specified stash is not a stash ref' ' git stash clear && test_when_finished "git reset --hard HEAD && git stash clear" && git reset --hard && @@ -618,7 +618,7 @@ test_expect_success 'stash drop - fail early if specified stash is not a stash r git reset --hard HEAD ' -test_expect_success 'stash pop - fail early if specified stash is not a stash reference' ' +test_expect_success 'pop: fail early if specified stash is not a stash ref' ' git stash clear && test_when_finished "git reset --hard HEAD && git stash clear" && git reset --hard && @@ -682,7 +682,7 @@ test_expect_success 'invalid ref of the form "n", n >= N' ' git stash drop ' -test_expect_success 'stash branch should not drop the stash if the branch exists' ' +test_expect_success 'branch: do not drop the stash if the branch exists' ' git stash clear && echo foo >file && git add file && @@ -693,7 +693,7 @@ test_expect_success 'stash branch should not drop the stash if the branch exists git rev-parse stash@{0} -- ' -test_expect_success 'stash branch should not drop the stash if the apply fails' ' +test_expect_success 'branch: should not drop the stash if the apply fails' ' git stash clear && git reset HEAD~1 --hard && echo foo >file && @@ -707,7 +707,7 @@ test_expect_success 'stash branch should not drop the stash if the apply fails' git rev-parse stash@{0} -- ' -test_expect_success 'stash apply shows status same as git status (relative to current directory)' ' +test_expect_success 'apply: show same status as git status (relative to ./)' ' git stash clear && echo 1 >subdir/subfile1 && echo 2 >subdir/subfile2 && @@ -1048,7 +1048,7 @@ test_expect_success 'stash push -p with pathspec shows no changes only once' ' test_i18ncmp expect actual ' -test_expect_success 'stash push with pathspec shows no changes when there are none' ' +test_expect_success 'push : show no changes when there are none' ' >foo && git add foo && git commit -m "tmp" && @@ -1058,7 +1058,7 @@ test_expect_success 'stash push with pathspec shows no changes when there are no test_i18ncmp expect actual ' -test_expect_success 'stash push with pathspec not in the repository errors out' ' +test_expect_success 'push: not in the repository errors out' ' >untracked && test_must_fail git stash push untracked && test_path_is_file untracked From cf288e47be61532df2430fdf2f02baa8d4d39f06 Mon Sep 17 00:00:00 2001 From: Paul-Sebastian Ungureanu Date: Fri, 31 Aug 2018 00:40:35 +0300 Subject: [PATCH 006/403] stash: add tests for `git stash show` config This commit introduces tests for `git stash show` config. It tests all the cases where `stash.showStat` and `stash.showPatch` are unset or set to true / false. Signed-off-by: Paul-Sebastian Ungureanu Signed-off-by: Junio C Hamano --- t/t3907-stash-show-config.sh | 81 ++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100755 t/t3907-stash-show-config.sh diff --git a/t/t3907-stash-show-config.sh b/t/t3907-stash-show-config.sh new file mode 100755 index 0000000000..8fe369c1a1 --- /dev/null +++ b/t/t3907-stash-show-config.sh @@ -0,0 +1,81 @@ +#!/bin/sh + +test_description='Test git stash show configuration.' + +. ./test-lib.sh + +test_expect_success 'setup' ' + test_commit file +' + +# takes three parameters: +# 1. the stash.showStat value (or "") +# 2. the stash.showPatch value (or "") +# 3. the diff options of the expected output (or nothing for no output) +test_stat_and_patch () { + if test "" = "$1" + then + test_might_fail git config --unset stash.showStat + else + test_config stash.showStat "$1" + fi && + + if test "" = "$2" + then + test_might_fail git config --unset stash.showPatch + else + test_config stash.showPatch "$2" + fi && + + shift && + shift && + echo 2 >file.t && + git diff "$@" >expect && + git stash && + git stash show >actual && + + if test -z "$1" + then + test_must_be_empty actual + else + test_cmp expect actual + fi +} + +test_expect_success 'showStat unset showPatch unset' ' + test_stat_and_patch "" "" --stat +' + +test_expect_success 'showStat unset showPatch false' ' + test_stat_and_patch "" false --stat +' + +test_expect_success 'showStat unset showPatch true' ' + test_stat_and_patch "" true --stat -p +' + +test_expect_success 'showStat false showPatch unset' ' + test_stat_and_patch false "" +' + +test_expect_success 'showStat false showPatch false' ' + test_stat_and_patch false false +' + +test_expect_success 'showStat false showPatch true' ' + test_stat_and_patch false true -p +' + +test_expect_success 'showStat true showPatch unset' ' + test_stat_and_patch true "" --stat +' + +test_expect_success 'showStat true showPatch false' ' + test_stat_and_patch true false --stat +' + +test_expect_success 'showStat true showPatch true' ' + test_stat_and_patch true true --stat -p +' + +test_done From 7459761fae612d5889ad881f0aca2ba9f4881b7d Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:07 -0700 Subject: [PATCH 007/403] builtin rebase: support --onto The `--onto` option is important, as it allows to rebase a range of commits onto a different base commit (which gave the command its odd name: "rebase"). This commit introduces options parsing so that different options can be added in future commits. Note: As this commit introduces to the parse_options() call (which "eats" argv[0]), the argc is now expected to be lower by one after this patch, compared to before this patch: argv[0] no longer refers to the command name, but to the first (non-option) command-line parameter. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 35 ++++++++++++++++++++++++++++++----- 1 file changed, 30 insertions(+), 5 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index e695d8a430..742ed31498 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -16,6 +16,16 @@ #include "cache-tree.h" #include "unpack-trees.h" #include "lockfile.h" +#include "parse-options.h" + +static char const * const builtin_rebase_usage[] = { + N_("git rebase [-i] [options] [--exec ] [--onto ] " + "[] []"), + N_("git rebase [-i] [options] [--exec ] [--onto ] " + "--root []"), + N_("git rebase --continue | --abort | --skip | --edit-todo"), + NULL +}; static GIT_PATH_FUNC(apply_dir, "rebase-apply") static GIT_PATH_FUNC(merge_dir, "rebase-merge") @@ -301,6 +311,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) int ret, flags; struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; + struct option builtin_rebase_options[] = { + OPT_STRING(0, "onto", &options.onto_name, + N_("revision"), + N_("rebase onto given branch instead of upstream")), + OPT_END(), + }; /* * NEEDSWORK: Once the builtin rebase has been tested enough @@ -318,13 +334,22 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) BUG("sane_execvp() returned???"); } - if (argc != 2) - die(_("Usage: %s "), argv[0]); + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(builtin_rebase_usage, + builtin_rebase_options); + prefix = setup_git_directory(); trace_repo_setup(prefix); setup_work_tree(); git_config(git_default_config, NULL); + argc = parse_options(argc, argv, prefix, + builtin_rebase_options, + builtin_rebase_usage, 0); + + if (argc > 2) + usage_with_options(builtin_rebase_usage, + builtin_rebase_options); switch (options.type) { case REBASE_MERGE: @@ -343,10 +368,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } if (!options.root) { - if (argc < 2) + if (argc < 1) die("TODO: handle @{upstream}"); else { - options.upstream_name = argv[1]; + options.upstream_name = argv[0]; argc--; argv++; if (!strcmp(options.upstream_name, "-")) @@ -377,7 +402,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) * orig_head -- commit object name of tip of the branch before rebasing * head_name -- refs/heads/ or "detached HEAD" */ - if (argc > 1) + if (argc > 0) die("TODO: handle switch_to"); else { /* Do not need to switch branches, we are already on it. */ From 87fe9abf802d7ec78bc73704b10d81d7ab4f1430 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:09 -0700 Subject: [PATCH 008/403] builtin rebase: support `git rebase --onto A...B` This commit implements support for an --onto argument that is actually a "symmetric range" i.e. `...`. The equivalent shell script version of the code offers two different error messages for the cases where there is no merge base vs more than one merge base. Though it would be nice to retain this distinction, dropping it makes it possible to simply use the `get_oid_mb()` function. Besides, it happens rarely in real-world scenarios. Therefore, in the interest of keeping the code less complex, let's just use that function, and live with an error message that does not distinguish between those two error conditions. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 742ed31498..38c496dd10 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -17,6 +17,7 @@ #include "unpack-trees.h" #include "lockfile.h" #include "parse-options.h" +#include "commit.h" static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] [--onto ] " @@ -311,6 +312,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) int ret, flags; struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; + struct object_id merge_base; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, N_("revision"), @@ -387,7 +389,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (!options.onto_name) options.onto_name = options.upstream_name; if (strstr(options.onto_name, "...")) { - die("TODO"); + if (get_oid_mb(options.onto_name, &merge_base) < 0) + die(_("'%s': need exactly one merge base"), + options.onto_name); + options.onto = lookup_commit_or_die(&merge_base, + options.onto_name); } else { options.onto = peel_committish(options.onto_name); if (!options.onto) From faaad30f5e7d74f7a69b4f1e58725ae9e64a62e3 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:10 -0700 Subject: [PATCH 009/403] builtin rebase: handle the pre-rebase hook and --no-verify This commit converts the equivalent part of the shell script `git-legacy-rebase.sh` to run the pre-rebase hook (unless disabled), and to interrupt the rebase with error if the hook fails. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 38c496dd10..b79f9b0a9f 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -70,6 +70,7 @@ struct rebase_options { const char *state_dir; struct commit *upstream; const char *upstream_name; + const char *upstream_arg; char *head_name; struct object_id orig_head; struct commit *onto; @@ -310,6 +311,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) }; const char *branch_name; int ret, flags; + int ok_to_skip_pre_rebase = 0; struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; struct object_id merge_base; @@ -317,6 +319,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_STRING(0, "onto", &options.onto_name, N_("revision"), N_("rebase onto given branch instead of upstream")), + OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase, + N_("allow pre-rebase hook to run")), OPT_END(), }; @@ -382,6 +386,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.upstream = peel_committish(options.upstream_name); if (!options.upstream) die(_("invalid upstream '%s'"), options.upstream_name); + options.upstream_arg = options.upstream_name; } else die("TODO: upstream for --root"); @@ -430,6 +435,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) die(_("Could not resolve HEAD to a revision")); } + /* If a hook exists, give it a chance to interrupt*/ + if (!ok_to_skip_pre_rebase && + run_hook_le(NULL, "pre-rebase", options.upstream_arg, + argc ? argv[0] : NULL, NULL)) + die(_("The pre-rebase hook refused to rebase.")); + strbuf_addf(&msg, "rebase: checkout %s", options.onto_name); if (reset_head(&options.onto->object.oid, "checkout", NULL, 1)) die(_("Could not detach HEAD")); From fd905f25e7771c29cb0972b9d3c37d380cb48a09 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 7 Aug 2018 01:16:09 +0545 Subject: [PATCH 010/403] rebase: start implementing it as a builtin This commit imitates the strategy that was used to convert the difftool to a builtin. We start by renaming the shell script `git-rebase.sh` to `git-legacy-rebase.sh` and introduce a `builtin/rebase.c` that simply executes the shell script version, unless the config setting `rebase.useBuiltin` is set to `true`. The motivation behind this is to rewrite all the functionality of the shell script version in the aforementioned `rebase.c`, one by one and be able to conveniently test new features by configuring `rebase.useBuiltin`. In the original difftool conversion, if sane_execvp() that attempts to run the legacy scripted version returned with non-negative status, the command silently exited without doing anything with success, but sane_execvp() should not return with non-negative status in the first place, so we use die() to notice such an abnormal case. We intentionally avoid reading the config directly to avoid messing up the GIT_* environment variables when we need to fall back to exec()ing the shell script. The test of builtin rebase can be done by `git -c rebase.useBuiltin=true rebase ...` Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- .gitignore | 1 + Makefile | 3 +- builtin.h | 1 + builtin/rebase.c | 58 +++++++++++++++++++++++++++ git-rebase.sh => git-legacy-rebase.sh | 0 git.c | 6 +++ 6 files changed, 68 insertions(+), 1 deletion(-) create mode 100644 builtin/rebase.c rename git-rebase.sh => git-legacy-rebase.sh (100%) diff --git a/.gitignore b/.gitignore index ffceea7d59..9afa700ba1 100644 --- a/.gitignore +++ b/.gitignore @@ -78,6 +78,7 @@ /git-init-db /git-interpret-trailers /git-instaweb +/git-legacy-rebase /git-log /git-ls-files /git-ls-remote diff --git a/Makefile b/Makefile index 5a969f5830..7e503758a5 100644 --- a/Makefile +++ b/Makefile @@ -614,7 +614,7 @@ SCRIPT_SH += git-merge-one-file.sh SCRIPT_SH += git-merge-resolve.sh SCRIPT_SH += git-mergetool.sh SCRIPT_SH += git-quiltimport.sh -SCRIPT_SH += git-rebase.sh +SCRIPT_SH += git-legacy-rebase.sh SCRIPT_SH += git-remote-testgit.sh SCRIPT_SH += git-request-pull.sh SCRIPT_SH += git-stash.sh @@ -1073,6 +1073,7 @@ BUILTIN_OBJS += builtin/pull.o BUILTIN_OBJS += builtin/push.o BUILTIN_OBJS += builtin/range-diff.o BUILTIN_OBJS += builtin/read-tree.o +BUILTIN_OBJS += builtin/rebase.o BUILTIN_OBJS += builtin/rebase--helper.o BUILTIN_OBJS += builtin/receive-pack.o BUILTIN_OBJS += builtin/reflog.o diff --git a/builtin.h b/builtin.h index 99206df4bd..db5767a397 100644 --- a/builtin.h +++ b/builtin.h @@ -203,6 +203,7 @@ extern int cmd_pull(int argc, const char **argv, const char *prefix); extern int cmd_push(int argc, const char **argv, const char *prefix); extern int cmd_range_diff(int argc, const char **argv, const char *prefix); extern int cmd_read_tree(int argc, const char **argv, const char *prefix); +extern int cmd_rebase(int argc, const char **argv, const char *prefix); extern int cmd_rebase__helper(int argc, const char **argv, const char *prefix); extern int cmd_receive_pack(int argc, const char **argv, const char *prefix); extern int cmd_reflog(int argc, const char **argv, const char *prefix); diff --git a/builtin/rebase.c b/builtin/rebase.c new file mode 100644 index 0000000000..c44addb2a4 --- /dev/null +++ b/builtin/rebase.c @@ -0,0 +1,58 @@ +/* + * "git rebase" builtin command + * + * Copyright (c) 2018 Pratik Karki + */ + +#include "builtin.h" +#include "run-command.h" +#include "exec-cmd.h" +#include "argv-array.h" +#include "dir.h" + +static int use_builtin_rebase(void) +{ + struct child_process cp = CHILD_PROCESS_INIT; + struct strbuf out = STRBUF_INIT; + int ret; + + argv_array_pushl(&cp.args, + "config", "--bool", "rebase.usebuiltin", NULL); + cp.git_cmd = 1; + if (capture_command(&cp, &out, 6)) { + strbuf_release(&out); + return 0; + } + + strbuf_trim(&out); + ret = !strcmp("true", out.buf); + strbuf_release(&out); + return ret; +} + +int cmd_rebase(int argc, const char **argv, const char *prefix) +{ + /* + * NEEDSWORK: Once the builtin rebase has been tested enough + * and git-legacy-rebase.sh is retired to contrib/, this preamble + * can be removed. + */ + + if (!use_builtin_rebase()) { + const char *path = mkpath("%s/git-legacy-rebase", + git_exec_path()); + + if (sane_execvp(path, (char **)argv) < 0) + die_errno(_("could not exec %s"), path); + else + BUG("sane_execvp() returned???"); + } + + if (argc != 2) + die(_("Usage: %s "), argv[0]); + prefix = setup_git_directory(); + trace_repo_setup(prefix); + setup_work_tree(); + + die("TODO"); +} diff --git a/git-rebase.sh b/git-legacy-rebase.sh similarity index 100% rename from git-rebase.sh rename to git-legacy-rebase.sh diff --git a/git.c b/git.c index c27c38738b..adb587f75e 100644 --- a/git.c +++ b/git.c @@ -522,6 +522,12 @@ static struct cmd_struct commands[] = { { "push", cmd_push, RUN_SETUP }, { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER }, { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX}, + /* + * NEEDSWORK: Until the rebase is independent and needs no redirection + * to rebase shell script this is kept as is, then should be changed to + * RUN_SETUP | NEED_WORK_TREE + */ + { "rebase", cmd_rebase }, { "rebase--helper", cmd_rebase__helper, RUN_SETUP | NEED_WORK_TREE }, { "receive-pack", cmd_receive_pack }, { "reflog", cmd_reflog, RUN_SETUP }, From d9e3e7e79adc03d9a2bda99a15340b3272891836 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:12 -0700 Subject: [PATCH 011/403] builtin rebase: support --quiet This commit introduces a rebase option `--quiet`. While `--quiet` is commonly perceived as opposite to `--verbose`, this is not the case for the rebase command: both `--quiet` and `--verbose` default to `false` if neither `--quiet` nor `--verbose` is present. Despite the default being `false` for both verbose and quiet mode, passing the `--quiet` option will turn off verbose mode, and `--verbose` will turn off quiet mode. This patch introduces the `flags` bit field, with `REBASE_NO_QUIET` as first user (with many more to come). We do *not* use `REBASE_QUIET` here for an important reason: To keep the implementation simple, this commit introduces `--no-quiet` instead of `--quiet`, so that a single `OPT_NEGBIT()` can turn on quiet mode and turn off verbose and diffstat mode at the same time. Likewise, the companion commit which will introduce support for `--verbose` will have a single `OPT_BIT()` that turns off quiet mode and turns on verbose and diffstat mode at the same time. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index b79f9b0a9f..19fa4d3fc4 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -79,6 +79,10 @@ struct rebase_options { int root; struct commit *restrict_revision; int dont_finish_rebase; + enum { + REBASE_NO_QUIET = 1<<0, + } flags; + struct strbuf git_am_opt; }; /* Returns the filename prefixed by the state_dir */ @@ -159,6 +163,9 @@ static int run_specific_rebase(struct rebase_options *opts) add_var(&script_snippet, "revisions", opts->revisions); add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? oid_to_hex(&opts->restrict_revision->object.oid) : NULL); + add_var(&script_snippet, "GIT_QUIET", + opts->flags & REBASE_NO_QUIET ? "" : "t"); + add_var(&script_snippet, "git_am_opt", opts->git_am_opt.buf); switch (opts->type) { case REBASE_AM: @@ -308,6 +315,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { .type = REBASE_UNSPECIFIED, + .flags = REBASE_NO_QUIET, + .git_am_opt = STRBUF_INIT, }; const char *branch_name; int ret, flags; @@ -321,6 +330,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) N_("rebase onto given branch instead of upstream")), OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase, N_("allow pre-rebase hook to run")), + OPT_NEGBIT('q', "quiet", &options.flags, + N_("be quiet. implies --no-stat"), + REBASE_NO_QUIET), OPT_END(), }; @@ -357,6 +369,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) usage_with_options(builtin_rebase_usage, builtin_rebase_options); + if (!(options.flags & REBASE_NO_QUIET)) + strbuf_addstr(&options.git_am_opt, " -q"); + switch (options.type) { case REBASE_MERGE: case REBASE_INTERACTIVE: From a5005ef137aed69eee91eb134b5eca8fe196ac9e Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 7 Aug 2018 01:16:10 +0545 Subject: [PATCH 012/403] rebase: refactor common shell functions into their own file The functions present in `git-legacy-rebase.sh` are used by the rebase backends as they are implemented as shell script functions in the `git-rebase--` files. To make the `builtin/rebase.c` work, we have to provide support via a Unix shell script snippet that uses these functions and so, we want to use the rebase backends *directly* from the builtin rebase without going through `git-legacy-rebase.sh`. This commit extracts the functions to a separate file, `git-rebase--common`, that will be read by `git-legacy-rebase.sh` and by the shell script snippets which will be used extensively in the following commits. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- .gitignore | 1 + Makefile | 1 + git-legacy-rebase.sh | 69 ++----------------------------------------- git-rebase--common.sh | 68 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 72 insertions(+), 67 deletions(-) create mode 100644 git-rebase--common.sh diff --git a/.gitignore b/.gitignore index 9afa700ba1..3a1eae8535 100644 --- a/.gitignore +++ b/.gitignore @@ -118,6 +118,7 @@ /git-read-tree /git-rebase /git-rebase--am +/git-rebase--common /git-rebase--helper /git-rebase--interactive /git-rebase--merge diff --git a/Makefile b/Makefile index 7e503758a5..318979ab50 100644 --- a/Makefile +++ b/Makefile @@ -624,6 +624,7 @@ SCRIPT_SH += git-web--browse.sh SCRIPT_LIB += git-mergetool--lib SCRIPT_LIB += git-parse-remote SCRIPT_LIB += git-rebase--am +SCRIPT_LIB += git-rebase--common SCRIPT_LIB += git-rebase--interactive SCRIPT_LIB += git-rebase--preserve-merges SCRIPT_LIB += git-rebase--merge diff --git a/git-legacy-rebase.sh b/git-legacy-rebase.sh index 7973447645..af2cdfef03 100755 --- a/git-legacy-rebase.sh +++ b/git-legacy-rebase.sh @@ -57,12 +57,7 @@ cd_to_toplevel LF=' ' ok_to_skip_pre_rebase= -resolvemsg=" -$(gettext 'Resolve all conflicts manually, mark them as resolved with -"git add/rm ", then run "git rebase --continue". -You can instead skip this commit: run "git rebase --skip". -To abort and get back to the state before "git rebase", run "git rebase --abort".') -" + squash_onto= unset onto unset restrict_revision @@ -102,6 +97,7 @@ case "$(git config --bool commit.gpgsign)" in true) gpg_sign_opt=-S ;; *) gpg_sign_opt= ;; esac +. git-rebase--common read_basic_state () { test -f "$state_dir/head-name" && @@ -132,67 +128,6 @@ read_basic_state () { } } -write_basic_state () { - echo "$head_name" > "$state_dir"/head-name && - echo "$onto" > "$state_dir"/onto && - echo "$orig_head" > "$state_dir"/orig-head && - echo "$GIT_QUIET" > "$state_dir"/quiet && - test t = "$verbose" && : > "$state_dir"/verbose - test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy - test -n "$strategy_opts" && echo "$strategy_opts" > \ - "$state_dir"/strategy_opts - test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ - "$state_dir"/allow_rerere_autoupdate - test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt - test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff -} - -output () { - case "$verbose" in - '') - output=$("$@" 2>&1 ) - status=$? - test $status != 0 && printf "%s\n" "$output" - return $status - ;; - *) - "$@" - ;; - esac -} - -move_to_original_branch () { - case "$head_name" in - refs/*) - message="rebase finished: $head_name onto $onto" - git update-ref -m "$message" \ - $head_name $(git rev-parse HEAD) $orig_head && - git symbolic-ref \ - -m "rebase finished: returning to $head_name" \ - HEAD $head_name || - die "$(eval_gettext "Could not move back to \$head_name")" - ;; - esac -} - -apply_autostash () { - if test -f "$state_dir/autostash" - then - stash_sha1=$(cat "$state_dir/autostash") - if git stash apply $stash_sha1 >/dev/null 2>&1 - then - echo "$(gettext 'Applied autostash.')" >&2 - else - git stash store -m "autostash" -q $stash_sha1 || - die "$(eval_gettext "Cannot store \$stash_sha1")" - gettext 'Applying autostash resulted in conflicts. -Your changes are safe in the stash. -You can run "git stash pop" or "git stash drop" at any time. -' >&2 - fi - fi -} - finish_rebase () { rm -f "$(git rev-parse --git-path REBASE_HEAD)" apply_autostash && diff --git a/git-rebase--common.sh b/git-rebase--common.sh new file mode 100644 index 0000000000..7e39d22871 --- /dev/null +++ b/git-rebase--common.sh @@ -0,0 +1,68 @@ + +resolvemsg=" +$(gettext 'Resolve all conflicts manually, mark them as resolved with +"git add/rm ", then run "git rebase --continue". +You can instead skip this commit: run "git rebase --skip". +To abort and get back to the state before "git rebase", run "git rebase --abort".') +" + +write_basic_state () { + echo "$head_name" > "$state_dir"/head-name && + echo "$onto" > "$state_dir"/onto && + echo "$orig_head" > "$state_dir"/orig-head && + echo "$GIT_QUIET" > "$state_dir"/quiet && + test t = "$verbose" && : > "$state_dir"/verbose + test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy + test -n "$strategy_opts" && echo "$strategy_opts" > \ + "$state_dir"/strategy_opts + test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ + "$state_dir"/allow_rerere_autoupdate + test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt + test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff +} + +apply_autostash () { + if test -f "$state_dir/autostash" + then + stash_sha1=$(cat "$state_dir/autostash") + if git stash apply $stash_sha1 >/dev/null 2>&1 + then + echo "$(gettext 'Applied autostash.')" >&2 + else + git stash store -m "autostash" -q $stash_sha1 || + die "$(eval_gettext "Cannot store \$stash_sha1")" + gettext 'Applying autostash resulted in conflicts. +Your changes are safe in the stash. +You can run "git stash pop" or "git stash drop" at any time. +' >&2 + fi + fi +} + +move_to_original_branch () { + case "$head_name" in + refs/*) + message="rebase finished: $head_name onto $onto" + git update-ref -m "$message" \ + $head_name $(git rev-parse HEAD) $orig_head && + git symbolic-ref \ + -m "rebase finished: returning to $head_name" \ + HEAD $head_name || + die "$(eval_gettext "Could not move back to \$head_name")" + ;; + esac +} + +output () { + case "$verbose" in + '') + output=$("$@" 2>&1 ) + status=$? + test $status != 0 && printf "%s\n" "$output" + return $status + ;; + *) + "$@" + ;; + esac +} From a2e715be81ebaf4059c7ebdbef4b7e80aae8e5a1 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:13 -0700 Subject: [PATCH 013/403] builtin rebase: support the `verbose` and `diffstat` options This commit introduces support for the `-v` and `--stat` options of rebase. The --stat option can also be configured via the Git config setting rebase.stat. To support this, we also add a custom rebase_config() function in this commit that will be used instead of (and falls back to calling) git_default_config(). Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 58 insertions(+), 2 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 19fa4d3fc4..2d3f1d65fb 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -18,6 +18,7 @@ #include "lockfile.h" #include "parse-options.h" #include "commit.h" +#include "diff.h" static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] [--onto ] " @@ -81,6 +82,8 @@ struct rebase_options { int dont_finish_rebase; enum { REBASE_NO_QUIET = 1<<0, + REBASE_VERBOSE = 1<<1, + REBASE_DIFFSTAT = 1<<2, } flags; struct strbuf git_am_opt; }; @@ -166,6 +169,10 @@ static int run_specific_rebase(struct rebase_options *opts) add_var(&script_snippet, "GIT_QUIET", opts->flags & REBASE_NO_QUIET ? "" : "t"); add_var(&script_snippet, "git_am_opt", opts->git_am_opt.buf); + add_var(&script_snippet, "verbose", + opts->flags & REBASE_VERBOSE ? "t" : ""); + add_var(&script_snippet, "diffstat", + opts->flags & REBASE_DIFFSTAT ? "t" : ""); switch (opts->type) { case REBASE_AM: @@ -311,6 +318,21 @@ static int reset_head(struct object_id *oid, const char *action, return ret; } +static int rebase_config(const char *var, const char *value, void *data) +{ + struct rebase_options *opts = data; + + if (!strcmp(var, "rebase.stat")) { + if (git_config_bool(var, value)) + opts->flags |= REBASE_DIFFSTAT; + else + opts->flags &= !REBASE_DIFFSTAT; + return 0; + } + + return git_default_config(var, value, data); +} + int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { @@ -332,7 +354,13 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) N_("allow pre-rebase hook to run")), OPT_NEGBIT('q', "quiet", &options.flags, N_("be quiet. implies --no-stat"), - REBASE_NO_QUIET), + REBASE_NO_QUIET| REBASE_VERBOSE | REBASE_DIFFSTAT), + OPT_BIT('v', "verbose", &options.flags, + N_("display a diffstat of what changed upstream"), + REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT), + {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, + N_("do not show diffstat of what changed upstream"), + PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, OPT_END(), }; @@ -360,7 +388,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) trace_repo_setup(prefix); setup_work_tree(); - git_config(git_default_config, NULL); + git_config(rebase_config, &options); + argc = parse_options(argc, argv, prefix, builtin_rebase_options, builtin_rebase_usage, 0); @@ -456,6 +485,33 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) argc ? argv[0] : NULL, NULL)) die(_("The pre-rebase hook refused to rebase.")); + if (options.flags & REBASE_DIFFSTAT) { + struct diff_options opts; + + if (options.flags & REBASE_VERBOSE) + printf(_("Changes from %s to %s:\n"), + oid_to_hex(&merge_base), + oid_to_hex(&options.onto->object.oid)); + + /* We want color (if set), but no pager */ + diff_setup(&opts); + opts.stat_width = -1; /* use full terminal width */ + opts.stat_graph_width = -1; /* respect statGraphWidth config */ + opts.output_format |= + DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; + opts.detect_rename = DIFF_DETECT_RENAME; + diff_setup_done(&opts); + diff_tree_oid(&merge_base, &options.onto->object.oid, + "", &opts); + diffcore_std(&opts); + diff_flush(&opts); + } + + /* Detach HEAD and reset the tree */ + if (options.flags & REBASE_NO_QUIET) + printf(_("First, rewinding head to replay your work on top of " + "it...\n")); + strbuf_addf(&msg, "rebase: checkout %s", options.onto_name); if (reset_head(&options.onto->object.oid, "checkout", NULL, 1)) die(_("Could not detach HEAD")); From 5c78629fd4a63781bb6f13478b9da7c130a36b79 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 7 Aug 2018 01:16:11 +0545 Subject: [PATCH 014/403] builtin/rebase: support running "git rebase " This patch gives life to the skeleton added in the previous patches: With this change, we can perform a elementary rebase (without any options). It can be tested thusly by: git -c rebase.usebuiltin=true rebase HEAD~2 The rebase backends (i.e. the shell script functions defined in `git-rebase--`) are still at work here and the "builtin rebase"'s purpose is simply to parse the options and set everything up so that those rebase backends can do their work. Note: We take an alternative approach here which is *not* to set the environment variables via `run_command_v_opt_cd_env()` because those variables would then be visible by processes spawned from the rebase backends. Instead, we work hard to set them in the shell script snippet. On Windows, some of the tests fail merely due to core.fileMode not being heeded that's why the core.*config variables is parsed here. The `reset_head()` function is currently only used to detach the HEAD to onto by way of starting the rebase, but it offers additional functionality that subsequent patches will need like moving to the original branch (possibly updating it) and also to do the equivalent of `git reset --hard`. The next commits will handle and support all the wonderful rebase options. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 365 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 364 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index c44addb2a4..e695d8a430 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -9,6 +9,24 @@ #include "exec-cmd.h" #include "argv-array.h" #include "dir.h" +#include "packfile.h" +#include "refs.h" +#include "quote.h" +#include "config.h" +#include "cache-tree.h" +#include "unpack-trees.h" +#include "lockfile.h" + +static GIT_PATH_FUNC(apply_dir, "rebase-apply") +static GIT_PATH_FUNC(merge_dir, "rebase-merge") + +enum rebase_type { + REBASE_UNSPECIFIED = -1, + REBASE_AM, + REBASE_MERGE, + REBASE_INTERACTIVE, + REBASE_PRESERVE_MERGES +}; static int use_builtin_rebase(void) { @@ -30,8 +48,260 @@ static int use_builtin_rebase(void) return ret; } +static int apply_autostash(void) +{ + warning("TODO"); + return 0; +} + +struct rebase_options { + enum rebase_type type; + const char *state_dir; + struct commit *upstream; + const char *upstream_name; + char *head_name; + struct object_id orig_head; + struct commit *onto; + const char *onto_name; + const char *revisions; + int root; + struct commit *restrict_revision; + int dont_finish_rebase; +}; + +/* Returns the filename prefixed by the state_dir */ +static const char *state_dir_path(const char *filename, struct rebase_options *opts) +{ + static struct strbuf path = STRBUF_INIT; + static size_t prefix_len; + + if (!prefix_len) { + strbuf_addf(&path, "%s/", opts->state_dir); + prefix_len = path.len; + } + + strbuf_setlen(&path, prefix_len); + strbuf_addstr(&path, filename); + return path.buf; +} + +static int finish_rebase(struct rebase_options *opts) +{ + struct strbuf dir = STRBUF_INIT; + const char *argv_gc_auto[] = { "gc", "--auto", NULL }; + + delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); + apply_autostash(); + close_all_packs(the_repository->objects); + /* + * We ignore errors in 'gc --auto', since the + * user should see them. + */ + run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); + strbuf_addstr(&dir, opts->state_dir); + remove_dir_recursively(&dir, 0); + strbuf_release(&dir); + + return 0; +} + +static struct commit *peel_committish(const char *name) +{ + struct object *obj; + struct object_id oid; + + if (get_oid(name, &oid)) + return NULL; + obj = parse_object(the_repository, &oid); + return (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT); +} + +static void add_var(struct strbuf *buf, const char *name, const char *value) +{ + if (!value) + strbuf_addf(buf, "unset %s; ", name); + else { + strbuf_addf(buf, "%s=", name); + sq_quote_buf(buf, value); + strbuf_addstr(buf, "; "); + } +} + +static int run_specific_rebase(struct rebase_options *opts) +{ + const char *argv[] = { NULL, NULL }; + struct strbuf script_snippet = STRBUF_INIT; + int status; + const char *backend, *backend_func; + + add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir())); + add_var(&script_snippet, "state_dir", opts->state_dir); + + add_var(&script_snippet, "upstream_name", opts->upstream_name); + add_var(&script_snippet, "upstream", + oid_to_hex(&opts->upstream->object.oid)); + add_var(&script_snippet, "head_name", opts->head_name); + add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); + add_var(&script_snippet, "onto", oid_to_hex(&opts->onto->object.oid)); + add_var(&script_snippet, "onto_name", opts->onto_name); + add_var(&script_snippet, "revisions", opts->revisions); + add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? + oid_to_hex(&opts->restrict_revision->object.oid) : NULL); + + switch (opts->type) { + case REBASE_AM: + backend = "git-rebase--am"; + backend_func = "git_rebase__am"; + break; + case REBASE_INTERACTIVE: + backend = "git-rebase--interactive"; + backend_func = "git_rebase__interactive"; + break; + case REBASE_MERGE: + backend = "git-rebase--merge"; + backend_func = "git_rebase__merge"; + break; + case REBASE_PRESERVE_MERGES: + backend = "git-rebase--preserve-merges"; + backend_func = "git_rebase__preserve_merges"; + break; + default: + BUG("Unhandled rebase type %d", opts->type); + break; + } + + strbuf_addf(&script_snippet, + ". git-sh-setup && . git-rebase--common &&" + " . %s && %s", backend, backend_func); + argv[0] = script_snippet.buf; + + status = run_command_v_opt(argv, RUN_USING_SHELL); + if (opts->dont_finish_rebase) + ; /* do nothing */ + else if (status == 0) { + if (!file_exists(state_dir_path("stopped-sha", opts))) + finish_rebase(opts); + } else if (status == 2) { + struct strbuf dir = STRBUF_INIT; + + apply_autostash(); + strbuf_addstr(&dir, opts->state_dir); + remove_dir_recursively(&dir, 0); + strbuf_release(&dir); + die("Nothing to do"); + } + + strbuf_release(&script_snippet); + + return status ? -1 : 0; +} + +#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION" + +static int reset_head(struct object_id *oid, const char *action, + const char *switch_to_branch, int detach_head) +{ + struct object_id head_oid; + struct tree_desc desc; + struct lock_file lock = LOCK_INIT; + struct unpack_trees_options unpack_tree_opts; + struct tree *tree; + const char *reflog_action; + struct strbuf msg = STRBUF_INIT; + size_t prefix_len; + struct object_id *orig = NULL, oid_orig, + *old_orig = NULL, oid_old_orig; + int ret = 0; + + if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) + return -1; + + if (!oid) { + if (get_oid("HEAD", &head_oid)) { + rollback_lock_file(&lock); + return error(_("could not determine HEAD revision")); + } + oid = &head_oid; + } + + memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); + setup_unpack_trees_porcelain(&unpack_tree_opts, action); + unpack_tree_opts.head_idx = 1; + unpack_tree_opts.src_index = the_repository->index; + unpack_tree_opts.dst_index = the_repository->index; + unpack_tree_opts.fn = oneway_merge; + unpack_tree_opts.update = 1; + unpack_tree_opts.merge = 1; + if (!detach_head) + unpack_tree_opts.reset = 1; + + if (read_index_unmerged(the_repository->index) < 0) { + rollback_lock_file(&lock); + return error(_("could not read index")); + } + + if (!fill_tree_descriptor(&desc, oid)) { + error(_("failed to find tree of %s"), oid_to_hex(oid)); + rollback_lock_file(&lock); + free((void *)desc.buffer); + return -1; + } + + if (unpack_trees(1, &desc, &unpack_tree_opts)) { + rollback_lock_file(&lock); + free((void *)desc.buffer); + return -1; + } + + tree = parse_tree_indirect(oid); + prime_cache_tree(the_repository->index, tree); + + if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) + ret = error(_("could not write index")); + free((void *)desc.buffer); + + if (ret) + return ret; + + reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); + strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase"); + prefix_len = msg.len; + + if (!get_oid("ORIG_HEAD", &oid_old_orig)) + old_orig = &oid_old_orig; + if (!get_oid("HEAD", &oid_orig)) { + orig = &oid_orig; + strbuf_addstr(&msg, "updating ORIG_HEAD"); + update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, + UPDATE_REFS_MSG_ON_ERR); + } else if (old_orig) + delete_ref(NULL, "ORIG_HEAD", old_orig, 0); + strbuf_setlen(&msg, prefix_len); + strbuf_addstr(&msg, "updating HEAD"); + if (!switch_to_branch) + ret = update_ref(msg.buf, "HEAD", oid, orig, REF_NO_DEREF, + UPDATE_REFS_MSG_ON_ERR); + else { + ret = create_symref("HEAD", switch_to_branch, msg.buf); + if (!ret) + ret = update_ref(msg.buf, "HEAD", oid, NULL, 0, + UPDATE_REFS_MSG_ON_ERR); + } + + strbuf_release(&msg); + return ret; +} + int cmd_rebase(int argc, const char **argv, const char *prefix) { + struct rebase_options options = { + .type = REBASE_UNSPECIFIED, + }; + const char *branch_name; + int ret, flags; + struct strbuf msg = STRBUF_INIT; + struct strbuf revisions = STRBUF_INIT; + /* * NEEDSWORK: Once the builtin rebase has been tested enough * and git-legacy-rebase.sh is retired to contrib/, this preamble @@ -54,5 +324,98 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) trace_repo_setup(prefix); setup_work_tree(); - die("TODO"); + git_config(git_default_config, NULL); + + switch (options.type) { + case REBASE_MERGE: + case REBASE_INTERACTIVE: + case REBASE_PRESERVE_MERGES: + options.state_dir = merge_dir(); + break; + case REBASE_AM: + options.state_dir = apply_dir(); + break; + default: + /* the default rebase backend is `--am` */ + options.type = REBASE_AM; + options.state_dir = apply_dir(); + break; + } + + if (!options.root) { + if (argc < 2) + die("TODO: handle @{upstream}"); + else { + options.upstream_name = argv[1]; + argc--; + argv++; + if (!strcmp(options.upstream_name, "-")) + options.upstream_name = "@{-1}"; + } + options.upstream = peel_committish(options.upstream_name); + if (!options.upstream) + die(_("invalid upstream '%s'"), options.upstream_name); + } else + die("TODO: upstream for --root"); + + /* Make sure the branch to rebase onto is valid. */ + if (!options.onto_name) + options.onto_name = options.upstream_name; + if (strstr(options.onto_name, "...")) { + die("TODO"); + } else { + options.onto = peel_committish(options.onto_name); + if (!options.onto) + die(_("Does not point to a valid commit '%s'"), + options.onto_name); + } + + /* + * If the branch to rebase is given, that is the branch we will rebase + * branch_name -- branch/commit being rebased, or + * HEAD (already detached) + * orig_head -- commit object name of tip of the branch before rebasing + * head_name -- refs/heads/ or "detached HEAD" + */ + if (argc > 1) + die("TODO: handle switch_to"); + else { + /* Do not need to switch branches, we are already on it. */ + options.head_name = + xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL, + &flags)); + if (!options.head_name) + die(_("No such ref: %s"), "HEAD"); + if (flags & REF_ISSYMREF) { + if (!skip_prefix(options.head_name, + "refs/heads/", &branch_name)) + branch_name = options.head_name; + + } else { + options.head_name = xstrdup("detached HEAD"); + branch_name = "HEAD"; + } + if (get_oid("HEAD", &options.orig_head)) + die(_("Could not resolve HEAD to a revision")); + } + + strbuf_addf(&msg, "rebase: checkout %s", options.onto_name); + if (reset_head(&options.onto->object.oid, "checkout", NULL, 1)) + die(_("Could not detach HEAD")); + strbuf_release(&msg); + + strbuf_addf(&revisions, "%s..%s", + options.root ? oid_to_hex(&options.onto->object.oid) : + (options.restrict_revision ? + oid_to_hex(&options.restrict_revision->object.oid) : + oid_to_hex(&options.upstream->object.oid)), + oid_to_hex(&options.orig_head)); + + options.revisions = revisions.buf; + + ret = !!run_specific_rebase(&options); + + strbuf_release(&revisions); + free(options.head_name); + return ret; } From f1ff8662b1323a94e9e44bc99c1ee9c8b4ae9738 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:14 -0700 Subject: [PATCH 015/403] builtin rebase: require a clean worktree This commit reads the index of the repository for rebase and checks whether the repository is ready for rebase. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 2d3f1d65fb..afef0b0046 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -19,6 +19,7 @@ #include "parse-options.h" #include "commit.h" #include "diff.h" +#include "wt-status.h" static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] [--onto ] " @@ -479,6 +480,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) die(_("Could not resolve HEAD to a revision")); } + if (read_index(the_repository->index) < 0) + die(_("could not read index")); + + if (require_clean_work_tree("rebase", + _("Please commit or stash them."), 1, 1)) { + ret = 1; + goto cleanup; + } + /* If a hook exists, give it a chance to interrupt*/ if (!ok_to_skip_pre_rebase && run_hook_le(NULL, "pre-rebase", options.upstream_arg, @@ -528,6 +538,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ret = !!run_specific_rebase(&options); +cleanup: strbuf_release(&revisions); free(options.head_name); return ret; From 3dbb4efde2de2c1d28a5110ddf67f55bb63b4776 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:16 -0700 Subject: [PATCH 016/403] builtin rebase: try to fast forward when possible In this commit, we add support to fast forward. Note: we will need the merge base later, therefore the call to can_fast_forward() really needs to be the first one when testing whether we can skip the rebase entirely (otherwise, it would make more sense to skip the possibly expensive operation if, say, running an interactive rebase). Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index afef0b0046..d67df28efc 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -20,6 +20,7 @@ #include "commit.h" #include "diff.h" #include "wt-status.h" +#include "revision.h" static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] [--onto ] " @@ -89,6 +90,12 @@ struct rebase_options { struct strbuf git_am_opt; }; +static int is_interactive(struct rebase_options *opts) +{ + return opts->type == REBASE_INTERACTIVE || + opts->type == REBASE_PRESERVE_MERGES; +} + /* Returns the filename prefixed by the state_dir */ static const char *state_dir_path(const char *filename, struct rebase_options *opts) { @@ -334,6 +341,46 @@ static int rebase_config(const char *var, const char *value, void *data) return git_default_config(var, value, data); } +/* + * Determines whether the commits in from..to are linear, i.e. contain + * no merge commits. This function *expects* `from` to be an ancestor of + * `to`. + */ +static int is_linear_history(struct commit *from, struct commit *to) +{ + while (to && to != from) { + parse_commit(to); + if (!to->parents) + return 1; + if (to->parents->next) + return 0; + to = to->parents->item; + } + return 1; +} + +static int can_fast_forward(struct commit *onto, struct object_id *head_oid, + struct object_id *merge_base) +{ + struct commit *head = lookup_commit(the_repository, head_oid); + struct commit_list *merge_bases; + int res; + + if (!head) + return 0; + + merge_bases = get_merge_bases(onto, head); + if (merge_bases && !merge_bases->next) { + oidcpy(merge_base, &merge_bases->item->object.oid); + res = !oidcmp(merge_base, &onto->object.oid); + } else { + oidcpy(merge_base, &null_oid); + res = 0; + } + free_commit_list(merge_bases); + return res && is_linear_history(onto, head); +} + int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { @@ -489,6 +536,31 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) goto cleanup; } + /* + * Now we are rebasing commits upstream..orig_head (or with --root, + * everything leading up to orig_head) on top of onto. + */ + + /* + * Check if we are already based on onto with linear history, + * but this should be done only when upstream and onto are the same + * and if this is not an interactive rebase. + */ + if (can_fast_forward(options.onto, &options.orig_head, &merge_base) && + !is_interactive(&options) && !options.restrict_revision && + !oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) { + int flag; + + if (!(options.flags & REBASE_NO_QUIET)) + ; /* be quiet */ + else if (!strcmp(branch_name, "HEAD") && + resolve_ref_unsafe("HEAD", 0, NULL, &flag)) + puts(_("HEAD is up to date, rebase forced.")); + else + printf(_("Current branch %s is up to date, rebase " + "forced.\n"), branch_name); + } + /* If a hook exists, give it a chance to interrupt*/ if (!ok_to_skip_pre_rebase && run_hook_le(NULL, "pre-rebase", options.upstream_arg, From cec618162dd7be590b20cc1c82edcbe703556af5 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:17 -0700 Subject: [PATCH 017/403] builtin rebase: support --force-rebase In this commit, we add support to `--force-rebase` option. The equivalent part of the shell script found in `git-legacy-rebase.sh` is converted as faithfully as possible to C. The --force-rebase option ensures that the rebase does not simply fast-forward even if it could. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index d67df28efc..8a7bf3d468 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -86,6 +86,7 @@ struct rebase_options { REBASE_NO_QUIET = 1<<0, REBASE_VERBOSE = 1<<1, REBASE_DIFFSTAT = 1<<2, + REBASE_FORCE = 1<<3, } flags; struct strbuf git_am_opt; }; @@ -181,6 +182,8 @@ static int run_specific_rebase(struct rebase_options *opts) opts->flags & REBASE_VERBOSE ? "t" : ""); add_var(&script_snippet, "diffstat", opts->flags & REBASE_DIFFSTAT ? "t" : ""); + add_var(&script_snippet, "force_rebase", + opts->flags & REBASE_FORCE ? "t" : ""); switch (opts->type) { case REBASE_AM: @@ -409,6 +412,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, N_("do not show diffstat of what changed upstream"), PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, + OPT_BIT('f', "force-rebase", &options.flags, + N_("cherry-pick all commits, even if unchanged"), + REBASE_FORCE), + OPT_BIT(0, "no-ff", &options.flags, + N_("cherry-pick all commits, even if unchanged"), + REBASE_FORCE), OPT_END(), }; @@ -551,7 +560,18 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) !oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) { int flag; - if (!(options.flags & REBASE_NO_QUIET)) + if (!(options.flags & REBASE_FORCE)) { + if (!(options.flags & REBASE_NO_QUIET)) + ; /* be quiet */ + else if (!strcmp(branch_name, "HEAD") && + resolve_ref_unsafe("HEAD", 0, NULL, &flag)) + puts(_("HEAD is up to date.")); + else + printf(_("Current branch %s is up to date.\n"), + branch_name); + ret = !!finish_rebase(&options); + goto cleanup; + } else if (!(options.flags & REBASE_NO_QUIET)) ; /* be quiet */ else if (!strcmp(branch_name, "HEAD") && resolve_ref_unsafe("HEAD", 0, NULL, &flag)) From c8fc20f54bd9aeee6e6919f95886a37bab3807bf Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:16 +0545 Subject: [PATCH 018/403] builtin rebase: support --continue This commit adds the option `--continue` which is used to resume rebase after merge conflicts. The code tries to stay as close to the equivalent shell scripts found in `git-legacy-rebase.sh` as possible. When continuing a rebase, the state variables are read from state_dir. Some of the state variables are not actually stored there, such as `upstream`. The shell script version simply does not set them, but for consistency, we unset them in the builtin version. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 115 +++++++++++++++++++++++++++++++++++++++++++++-- strbuf.c | 9 ++++ strbuf.h | 3 ++ 3 files changed, 123 insertions(+), 4 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index e817956d96..f112d91d67 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -91,6 +91,7 @@ struct rebase_options { REBASE_INTERACTIVE_EXPLICIT = 1<<4, } flags; struct strbuf git_am_opt; + const char *action; }; static int is_interactive(struct rebase_options *opts) @@ -115,6 +116,62 @@ static const char *state_dir_path(const char *filename, struct rebase_options *o return path.buf; } +/* Read one file, then strip line endings */ +static int read_one(const char *path, struct strbuf *buf) +{ + if (strbuf_read_file(buf, path, 0) < 0) + return error_errno(_("could not read '%s'"), path); + strbuf_trim_trailing_newline(buf); + return 0; +} + +/* Initialize the rebase options from the state directory. */ +static int read_basic_state(struct rebase_options *opts) +{ + struct strbuf head_name = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; + struct object_id oid; + + if (read_one(state_dir_path("head-name", opts), &head_name) || + read_one(state_dir_path("onto", opts), &buf)) + return -1; + opts->head_name = starts_with(head_name.buf, "refs/") ? + xstrdup(head_name.buf) : NULL; + strbuf_release(&head_name); + if (get_oid(buf.buf, &oid)) + return error(_("could not get 'onto': '%s'"), buf.buf); + opts->onto = lookup_commit_or_die(&oid, buf.buf); + + /* + * We always write to orig-head, but interactive rebase used to write to + * head. Fall back to reading from head to cover for the case that the + * user upgraded git with an ongoing interactive rebase. + */ + strbuf_reset(&buf); + if (file_exists(state_dir_path("orig-head", opts))) { + if (read_one(state_dir_path("orig-head", opts), &buf)) + return -1; + } else if (read_one(state_dir_path("head", opts), &buf)) + return -1; + if (get_oid(buf.buf, &opts->orig_head)) + return error(_("invalid orig-head: '%s'"), buf.buf); + + strbuf_reset(&buf); + if (read_one(state_dir_path("quiet", opts), &buf)) + return -1; + if (buf.len) + opts->flags &= ~REBASE_NO_QUIET; + else + opts->flags |= REBASE_NO_QUIET; + + if (file_exists(state_dir_path("verbose", opts))) + opts->flags |= REBASE_VERBOSE; + + strbuf_release(&buf); + + return 0; +} + static int finish_rebase(struct rebase_options *opts) { struct strbuf dir = STRBUF_INIT; @@ -168,12 +225,13 @@ static int run_specific_rebase(struct rebase_options *opts) add_var(&script_snippet, "state_dir", opts->state_dir); add_var(&script_snippet, "upstream_name", opts->upstream_name); - add_var(&script_snippet, "upstream", - oid_to_hex(&opts->upstream->object.oid)); + add_var(&script_snippet, "upstream", opts->upstream ? + oid_to_hex(&opts->upstream->object.oid) : NULL); add_var(&script_snippet, "head_name", opts->head_name ? opts->head_name : "detached HEAD"); add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); - add_var(&script_snippet, "onto", oid_to_hex(&opts->onto->object.oid)); + add_var(&script_snippet, "onto", opts->onto ? + oid_to_hex(&opts->onto->object.oid) : NULL); add_var(&script_snippet, "onto_name", opts->onto_name); add_var(&script_snippet, "revisions", opts->revisions); add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? @@ -189,6 +247,7 @@ static int run_specific_rebase(struct rebase_options *opts) opts->flags & REBASE_FORCE ? "t" : ""); if (opts->switch_to) add_var(&script_snippet, "switch_to", opts->switch_to); + add_var(&script_snippet, "action", opts->action ? opts->action : ""); switch (opts->type) { case REBASE_AM: @@ -400,12 +459,16 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) .git_am_opt = STRBUF_INIT, }; const char *branch_name; - int ret, flags, in_progress = 0; + int ret, flags, total_argc, in_progress = 0; int ok_to_skip_pre_rebase = 0; struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; struct strbuf buf = STRBUF_INIT; struct object_id merge_base; + enum { + NO_ACTION, + ACTION_CONTINUE, + } action = NO_ACTION; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, N_("revision"), @@ -427,6 +490,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_BIT(0, "no-ff", &options.flags, N_("cherry-pick all commits, even if unchanged"), REBASE_FORCE), + OPT_CMDMODE(0, "continue", &action, N_("continue"), + ACTION_CONTINUE), OPT_END(), }; @@ -480,14 +545,55 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (options.type != REBASE_UNSPECIFIED) in_progress = 1; + total_argc = argc; argc = parse_options(argc, argv, prefix, builtin_rebase_options, builtin_rebase_usage, 0); + if (action != NO_ACTION && total_argc != 2) { + usage_with_options(builtin_rebase_usage, + builtin_rebase_options); + } + if (argc > 2) usage_with_options(builtin_rebase_usage, builtin_rebase_options); + switch (action) { + case ACTION_CONTINUE: { + struct object_id head; + struct lock_file lock_file = LOCK_INIT; + int fd; + + options.action = "continue"; + + /* Sanity check */ + if (get_oid("HEAD", &head)) + die(_("Cannot read HEAD")); + + fd = hold_locked_index(&lock_file, 0); + if (read_index(the_repository->index) < 0) + die(_("could not read index")); + refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL, + NULL); + if (0 <= fd) + update_index_if_able(the_repository->index, + &lock_file); + rollback_lock_file(&lock_file); + + if (has_unstaged_changes(1)) { + puts(_("You must edit all merge conflicts and then\n" + "mark them as resolved using git add")); + exit(1); + } + if (read_basic_state(&options)) + exit(1); + goto run_rebase; + } + default: + die("TODO"); + } + /* Make sure no rebase is in progress */ if (in_progress) { const char *last_slash = strrchr(options.state_dir, '/'); @@ -719,6 +825,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.revisions = revisions.buf; +run_rebase: ret = !!run_specific_rebase(&options); cleanup: diff --git a/strbuf.c b/strbuf.c index 64041c3c24..f6a6cf78b9 100644 --- a/strbuf.c +++ b/strbuf.c @@ -120,6 +120,15 @@ void strbuf_trim_trailing_dir_sep(struct strbuf *sb) sb->buf[sb->len] = '\0'; } +void strbuf_trim_trailing_newline(struct strbuf *sb) +{ + if (sb->len > 0 && sb->buf[sb->len - 1] == '\n') { + if (--sb->len > 0 && sb->buf[sb->len - 1] == '\r') + --sb->len; + sb->buf[sb->len] = '\0'; + } +} + void strbuf_ltrim(struct strbuf *sb) { char *b = sb->buf; diff --git a/strbuf.h b/strbuf.h index 60a35aef16..b7aea8a966 100644 --- a/strbuf.h +++ b/strbuf.h @@ -190,6 +190,9 @@ extern void strbuf_ltrim(struct strbuf *); /* Strip trailing directory separators */ extern void strbuf_trim_trailing_dir_sep(struct strbuf *); +/* Strip trailing LF or CR/LF */ +extern void strbuf_trim_trailing_newline(struct strbuf *sb); + /** * Replace the contents of the strbuf with a reencoded form. Returns -1 * on error, 0 on success. From 37c05f4a12d541b871b686543ca5f998903b1fa2 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:18 -0700 Subject: [PATCH 019/403] builtin rebase: start a new rebase only if none is in progress To run a new rebase, there needs to be a check to assure that no other rebase is in progress. New rebase operation cannot start until an ongoing rebase operation completes or is terminated. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 8a7bf3d468..d45f8f9008 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -87,6 +87,7 @@ struct rebase_options { REBASE_VERBOSE = 1<<1, REBASE_DIFFSTAT = 1<<2, REBASE_FORCE = 1<<3, + REBASE_INTERACTIVE_EXPLICIT = 1<<4, } flags; struct strbuf git_am_opt; }; @@ -392,10 +393,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) .git_am_opt = STRBUF_INIT, }; const char *branch_name; - int ret, flags; + int ret, flags, in_progress = 0; int ok_to_skip_pre_rebase = 0; struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; struct object_id merge_base; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -447,6 +449,30 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) git_config(rebase_config, &options); + if (is_directory(apply_dir())) { + options.type = REBASE_AM; + options.state_dir = apply_dir(); + } else if (is_directory(merge_dir())) { + strbuf_reset(&buf); + strbuf_addf(&buf, "%s/rewritten", merge_dir()); + if (is_directory(buf.buf)) { + options.type = REBASE_PRESERVE_MERGES; + options.flags |= REBASE_INTERACTIVE_EXPLICIT; + } else { + strbuf_reset(&buf); + strbuf_addf(&buf, "%s/interactive", merge_dir()); + if(file_exists(buf.buf)) { + options.type = REBASE_INTERACTIVE; + options.flags |= REBASE_INTERACTIVE_EXPLICIT; + } else + options.type = REBASE_MERGE; + } + options.state_dir = merge_dir(); + } + + if (options.type != REBASE_UNSPECIFIED) + in_progress = 1; + argc = parse_options(argc, argv, prefix, builtin_rebase_options, builtin_rebase_usage, 0); @@ -455,6 +481,26 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) usage_with_options(builtin_rebase_usage, builtin_rebase_options); + /* Make sure no rebase is in progress */ + if (in_progress) { + const char *last_slash = strrchr(options.state_dir, '/'); + const char *state_dir_base = + last_slash ? last_slash + 1 : options.state_dir; + const char *cmd_live_rebase = + "git rebase (--continue | --abort | --skip)"; + strbuf_reset(&buf); + strbuf_addf(&buf, "rm -fr \"%s\"", options.state_dir); + die(_("It seems that there is already a %s directory, and\n" + "I wonder if you are in the middle of another rebase. " + "If that is the\n" + "case, please try\n\t%s\n" + "If that is not the case, please\n\t%s\n" + "and run me again. I am stopping in case you still " + "have something\n" + "valuable there.\n"), + state_dir_base, cmd_live_rebase, buf.buf); + } + if (!(options.flags & REBASE_NO_QUIET)) strbuf_addstr(&options.git_am_opt, " -q"); From 4af7be657b5918714acb449e968741cc8c6b417b Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:17 +0545 Subject: [PATCH 020/403] builtin rebase: support --skip This commit adds the option `--skip` which is used to restart rebase after skipping the current patch. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index f112d91d67..c477108f79 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -21,6 +21,7 @@ #include "diff.h" #include "wt-status.h" #include "revision.h" +#include "rerere.h" static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] [--onto ] " @@ -468,6 +469,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) enum { NO_ACTION, ACTION_CONTINUE, + ACTION_SKIP, } action = NO_ACTION; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -492,6 +494,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) REBASE_FORCE), OPT_CMDMODE(0, "continue", &action, N_("continue"), ACTION_CONTINUE), + OPT_CMDMODE(0, "skip", &action, + N_("skip current patch and continue"), ACTION_SKIP), OPT_END(), }; @@ -590,6 +594,20 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) exit(1); goto run_rebase; } + case ACTION_SKIP: { + struct string_list merge_rr = STRING_LIST_INIT_DUP; + + options.action = "skip"; + + rerere_clear(&merge_rr); + string_list_clear(&merge_rr, 1); + + if (reset_head(NULL, "reset", NULL, 0) < 0) + die(_("could not discard worktree changes")); + if (read_basic_state(&options)) + exit(1); + goto run_rebase; + } default: die("TODO"); } From 368a900493bba4e957008c587a57cc6318dd1375 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:20 -0700 Subject: [PATCH 021/403] builtin rebase: only store fully-qualified refs in `options.head_name` When running a rebase on a detached HEAD, we currently store the string "detached HEAD" in options.head_name. That is a faithful translation of the shell script version, and we still kind of need it for the purposes of the scripted backends. It is poor style for C, though, where we would really only want a valid, fully-qualified ref name as value, and NULL for detached HEADs, using "detached HEAD" for display only. Make it so. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index d45f8f9008..afc75fe731 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -169,7 +169,8 @@ static int run_specific_rebase(struct rebase_options *opts) add_var(&script_snippet, "upstream_name", opts->upstream_name); add_var(&script_snippet, "upstream", oid_to_hex(&opts->upstream->object.oid)); - add_var(&script_snippet, "head_name", opts->head_name); + add_var(&script_snippet, "head_name", + opts->head_name ? opts->head_name : "detached HEAD"); add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); add_var(&script_snippet, "onto", oid_to_hex(&opts->onto->object.oid)); add_var(&script_snippet, "onto_name", opts->onto_name); @@ -251,6 +252,9 @@ static int reset_head(struct object_id *oid, const char *action, *old_orig = NULL, oid_old_orig; int ret = 0; + if (switch_to_branch && !starts_with(switch_to_branch, "refs/")) + BUG("Not a fully qualified branch: '%s'", switch_to_branch); + if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) return -1; @@ -558,7 +562,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) * branch_name -- branch/commit being rebased, or * HEAD (already detached) * orig_head -- commit object name of tip of the branch before rebasing - * head_name -- refs/heads/ or "detached HEAD" + * head_name -- refs/heads/ or NULL (detached HEAD) */ if (argc > 0) die("TODO: handle switch_to"); @@ -575,7 +579,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) branch_name = options.head_name; } else { - options.head_name = xstrdup("detached HEAD"); + free(options.head_name); + options.head_name = NULL; branch_name = "HEAD"; } if (get_oid("HEAD", &options.orig_head)) From 04f5cf486848ad01d8ded65bcc2323e826fb0940 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:18 +0545 Subject: [PATCH 022/403] builtin rebase: support --abort This commit teaches the builtin rebase the "abort" action, which a user can call to roll back a rebase that is in progress. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index c477108f79..ceb786d3a0 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -470,6 +470,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) NO_ACTION, ACTION_CONTINUE, ACTION_SKIP, + ACTION_ABORT, } action = NO_ACTION; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -496,6 +497,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_CONTINUE), OPT_CMDMODE(0, "skip", &action, N_("skip current patch and continue"), ACTION_SKIP), + OPT_CMDMODE(0, "abort", &action, + N_("abort and check out the original branch"), + ACTION_ABORT), OPT_END(), }; @@ -608,6 +612,22 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) exit(1); goto run_rebase; } + case ACTION_ABORT: { + struct string_list merge_rr = STRING_LIST_INIT_DUP; + options.action = "abort"; + + rerere_clear(&merge_rr); + string_list_clear(&merge_rr, 1); + + if (read_basic_state(&options)) + exit(1); + if (reset_head(&options.orig_head, "reset", + options.head_name, 0) < 0) + die(_("could not move back to %s"), + oid_to_hex(&options.orig_head)); + ret = finish_rebase(&options); + goto cleanup; + } default: die("TODO"); } From 7d600b26268b39a83754427d968dfa225c5f380a Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:27:21 -0700 Subject: [PATCH 023/403] builtin rebase: support `git rebase ` This commit adds support for `switch-to` which is used to switch to the target branch if needed. The equivalent codes found in shell script `git-legacy-rebase.sh` is converted to builtin `rebase.c`. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 48 ++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 44 insertions(+), 4 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index afc75fe731..e817956d96 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -79,6 +79,7 @@ struct rebase_options { struct commit *onto; const char *onto_name; const char *revisions; + const char *switch_to; int root; struct commit *restrict_revision; int dont_finish_rebase; @@ -186,6 +187,8 @@ static int run_specific_rebase(struct rebase_options *opts) opts->flags & REBASE_DIFFSTAT ? "t" : ""); add_var(&script_snippet, "force_rebase", opts->flags & REBASE_FORCE ? "t" : ""); + if (opts->switch_to) + add_var(&script_snippet, "switch_to", opts->switch_to); switch (opts->type) { case REBASE_AM: @@ -564,9 +567,23 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) * orig_head -- commit object name of tip of the branch before rebasing * head_name -- refs/heads/ or NULL (detached HEAD) */ - if (argc > 0) - die("TODO: handle switch_to"); - else { + if (argc == 1) { + /* Is it "rebase other branchname" or "rebase other commit"? */ + branch_name = argv[0]; + options.switch_to = argv[0]; + + /* Is it a local branch? */ + strbuf_reset(&buf); + strbuf_addf(&buf, "refs/heads/%s", branch_name); + if (!read_ref(buf.buf, &options.orig_head)) + options.head_name = xstrdup(buf.buf); + /* If not is it a valid ref (branch or commit)? */ + else if (!get_oid(branch_name, &options.orig_head)) + options.head_name = NULL; + else + die(_("fatal: no such branch/commit '%s'"), + branch_name); + } else if (argc == 0) { /* Do not need to switch branches, we are already on it. */ options.head_name = xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL, @@ -585,7 +602,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } if (get_oid("HEAD", &options.orig_head)) die(_("Could not resolve HEAD to a revision")); - } + } else + BUG("unexpected number of arguments left to parse"); if (read_index(the_repository->index) < 0) die(_("could not read index")); @@ -612,6 +630,28 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) int flag; if (!(options.flags & REBASE_FORCE)) { + /* Lazily switch to the target branch if needed... */ + if (options.switch_to) { + struct object_id oid; + + if (get_oid(options.switch_to, &oid) < 0) { + ret = !!error(_("could not parse '%s'"), + options.switch_to); + goto cleanup; + } + + strbuf_reset(&buf); + strbuf_addf(&buf, "rebase: checkout %s", + options.switch_to); + if (reset_head(&oid, "checkout", + options.head_name, 0) < 0) { + ret = !!error(_("could not switch to " + "%s"), + options.switch_to); + goto cleanup; + } + } + if (!(options.flags & REBASE_NO_QUIET)) ; /* be quiet */ else if (!strcmp(branch_name, "HEAD") && From 2479511433dda1040f4967357327e2b9859f5b9d Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:49 -0700 Subject: [PATCH 024/403] builtin rebase: allow selecting the rebase "backend" With this commit the builtin rebase supports selecting the "rebase backends" (or "type") `interactive`, `preserve-merges`, and `merge`. The `state_dir` was already handled according to the rebase type in a previous commit. Note that there is one quirk in the shell script: `--interactive` followed by `--merge` won't reset the type to "merge" but keeps the type as "interactive". And as t3418 tests this explicitly, we have to support it in the builtin rebase, too. Likewise, `--interactive` followed by `--preserve-merges` makes it an "explicitly interactive" rebase, i.e. a rebase that should show the todo list, while `--preserve-merges` alone is not interactive (and t5520 tests for this via `git pull --rebase=preserve`). Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 2165656ae2..61695ac7b9 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -452,6 +452,29 @@ static int can_fast_forward(struct commit *onto, struct object_id *head_oid, return res && is_linear_history(onto, head); } +/* -i followed by -m is still -i */ +static int parse_opt_merge(const struct option *opt, const char *arg, int unset) +{ + struct rebase_options *opts = opt->value; + + if (!is_interactive(opts)) + opts->type = REBASE_MERGE; + + return 0; +} + +/* -i followed by -p is still explicitly interactive, but -p alone is not */ +static int parse_opt_interactive(const struct option *opt, const char *arg, + int unset) +{ + struct rebase_options *opts = opt->value; + + opts->type = REBASE_INTERACTIVE; + opts->flags |= REBASE_INTERACTIVE_EXPLICIT; + + return 0; +} + int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { @@ -510,6 +533,17 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_CMDMODE(0, "show-current-patch", &action, N_("show the patch file being applied or merged"), ACTION_SHOW_CURRENT_PATCH), + { OPTION_CALLBACK, 'm', "merge", &options, NULL, + N_("use merging strategies to rebase"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, + parse_opt_merge }, + { OPTION_CALLBACK, 'i', "interactive", &options, NULL, + N_("let the user edit the list of commits to rebase"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, + parse_opt_interactive }, + OPT_SET_INT('p', "preserve-merges", &options.type, + N_("try to recreate merges instead of ignoring " + "them"), REBASE_PRESERVE_MERGES), OPT_END(), }; @@ -884,6 +918,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) diff_flush(&opts); } + if (is_interactive(&options)) + goto run_rebase; + /* Detach HEAD and reset the tree */ if (options.flags & REBASE_NO_QUIET) printf(_("First, rewinding head to replay your work on top of " From 108ec0241569458675aa65424170de59584a100c Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:50 -0700 Subject: [PATCH 025/403] builtin rebase: support --signoff This commit adds support for `--signoff` which is used to add a `Signed-off-by` trailer to all the rebased commits. The actual handling is left to the rebase backends. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 61695ac7b9..3c8b29d82c 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -93,6 +93,7 @@ struct rebase_options { } flags; struct strbuf git_am_opt; const char *action; + int signoff; }; static int is_interactive(struct rebase_options *opts) @@ -168,6 +169,11 @@ static int read_basic_state(struct rebase_options *opts) if (file_exists(state_dir_path("verbose", opts))) opts->flags |= REBASE_VERBOSE; + if (file_exists(state_dir_path("signoff", opts))) { + opts->signoff = 1; + opts->flags |= REBASE_FORCE; + } + strbuf_release(&buf); return 0; @@ -249,6 +255,7 @@ static int run_specific_rebase(struct rebase_options *opts) if (opts->switch_to) add_var(&script_snippet, "switch_to", opts->switch_to); add_var(&script_snippet, "action", opts->action ? opts->action : ""); + add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : ""); switch (opts->type) { case REBASE_AM: @@ -513,6 +520,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, N_("do not show diffstat of what changed upstream"), PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, + OPT_BOOL(0, "signoff", &options.signoff, + N_("add a Signed-off-by: line to each commit")), OPT_BIT('f', "force-rebase", &options.flags, N_("cherry-pick all commits, even if unchanged"), REBASE_FORCE), @@ -745,6 +754,14 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) break; } + if (options.signoff) { + if (options.type == REBASE_PRESERVE_MERGES) + die("cannot combine '--signoff' with " + "'--preserve-merges'"); + strbuf_addstr(&options.git_am_opt, " --signoff"); + options.flags |= REBASE_FORCE; + } + if (!options.root) { if (argc < 1) die("TODO: handle @{upstream}"); From 6e1d2a8887864886f2b7ea6850657c9cac5593d7 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:52 -0700 Subject: [PATCH 026/403] builtin rebase: support --rerere-autoupdate The `--rerere-autoupdate` option allows rerere to update the index with resolved conflicts. This commit follows closely the equivalent part of `git-legacy-rebase.sh`. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 3c8b29d82c..24dc646ea5 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -94,6 +94,7 @@ struct rebase_options { struct strbuf git_am_opt; const char *action; int signoff; + int allow_rerere_autoupdate; }; static int is_interactive(struct rebase_options *opts) @@ -174,6 +175,21 @@ static int read_basic_state(struct rebase_options *opts) opts->flags |= REBASE_FORCE; } + if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) { + strbuf_reset(&buf); + if (read_one(state_dir_path("allow_rerere_autoupdate", opts), + &buf)) + return -1; + if (!strcmp(buf.buf, "--rerere-autoupdate")) + opts->allow_rerere_autoupdate = 1; + else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) + opts->allow_rerere_autoupdate = 0; + else + warning(_("ignoring invalid allow_rerere_autoupdate: " + "'%s'"), buf.buf); + } else + opts->allow_rerere_autoupdate = -1; + strbuf_release(&buf); return 0; @@ -256,6 +272,10 @@ static int run_specific_rebase(struct rebase_options *opts) add_var(&script_snippet, "switch_to", opts->switch_to); add_var(&script_snippet, "action", opts->action ? opts->action : ""); add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : ""); + add_var(&script_snippet, "allow_rerere_autoupdate", + opts->allow_rerere_autoupdate < 0 ? "" : + opts->allow_rerere_autoupdate ? + "--rerere-autoupdate" : "--no-rerere-autoupdate"); switch (opts->type) { case REBASE_AM: @@ -488,6 +508,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) .type = REBASE_UNSPECIFIED, .flags = REBASE_NO_QUIET, .git_am_opt = STRBUF_INIT, + .allow_rerere_autoupdate = -1, }; const char *branch_name; int ret, flags, total_argc, in_progress = 0; @@ -553,6 +574,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_SET_INT('p', "preserve-merges", &options.type, N_("try to recreate merges instead of ignoring " "them"), REBASE_PRESERVE_MERGES), + OPT_BOOL(0, "rerere-autoupdate", + &options.allow_rerere_autoupdate, + N_("allow rerere to update index with resolved " + "conflict")), OPT_END(), }; From 200831bcacd6eb507df92aa7928c6dd0c32f4ed5 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:19 +0545 Subject: [PATCH 027/403] builtin rebase: support --quit With this patch, the builtin rebase handles the `--quit` action which can be used to abort a rebase without rolling back any changes performed during the rebase (this is useful when a user forgot that they were in the middle of a rebase and continued working normally). Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index ceb786d3a0..f64fa42422 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -471,6 +471,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_CONTINUE, ACTION_SKIP, ACTION_ABORT, + ACTION_QUIT, } action = NO_ACTION; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -500,6 +501,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_CMDMODE(0, "abort", &action, N_("abort and check out the original branch"), ACTION_ABORT), + OPT_CMDMODE(0, "quit", &action, + N_("abort but keep HEAD where it is"), ACTION_QUIT), OPT_END(), }; @@ -628,6 +631,14 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ret = finish_rebase(&options); goto cleanup; } + case ACTION_QUIT: { + strbuf_reset(&buf); + strbuf_addstr(&buf, options.state_dir); + ret = !!remove_dir_recursively(&buf, 0); + if (ret) + die(_("could not remove '%s'"), options.state_dir); + goto cleanup; + } default: die("TODO"); } From 6a24b9707408a5ecee46be11b0bdb6ee4fa661f3 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:53 -0700 Subject: [PATCH 028/403] builtin rebase: support --committer-date-is-author-date This option is simply handed down to `git am` by way of setting the `git_am_opt` variable that is handled by the `git-rebase--am` backend. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 24dc646ea5..6ce50eae0f 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -526,6 +526,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_EDIT_TODO, ACTION_SHOW_CURRENT_PATCH, } action = NO_ACTION; + int committer_date_is_author_date = 0; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, N_("revision"), @@ -543,6 +544,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, OPT_BOOL(0, "signoff", &options.signoff, N_("add a Signed-off-by: line to each commit")), + OPT_BOOL(0, "committer-date-is-author-date", + &committer_date_is_author_date, + N_("passed to 'git am'")), OPT_BIT('f', "force-rebase", &options.flags, N_("cherry-pick all commits, even if unchanged"), REBASE_FORCE), @@ -763,6 +767,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (!(options.flags & REBASE_NO_QUIET)) strbuf_addstr(&options.git_am_opt, " -q"); + if (committer_date_is_author_date) { + strbuf_addstr(&options.git_am_opt, + " --committer-date-is-author-date"); + options.flags |= REBASE_FORCE; + } + switch (options.type) { case REBASE_MERGE: case REBASE_INTERACTIVE: From c5468d894351753572319ba647f2419f0bfe3bf2 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:20 +0545 Subject: [PATCH 029/403] builtin rebase: support --edit-todo and --show-current-patch While these sub-commands are very different in spirit, their implementation is almost identical, so we convert them in one go. And since those are the last sub-commands that needed to be converted, now we can also turn that `default:` case into a bug (because we should now handle all the actions). Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index f64fa42422..12d34848bd 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -472,6 +472,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_SKIP, ACTION_ABORT, ACTION_QUIT, + ACTION_EDIT_TODO, + ACTION_SHOW_CURRENT_PATCH, } action = NO_ACTION; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -503,6 +505,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_ABORT), OPT_CMDMODE(0, "quit", &action, N_("abort but keep HEAD where it is"), ACTION_QUIT), + OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list " + "during an interactive rebase"), ACTION_EDIT_TODO), + OPT_CMDMODE(0, "show-current-patch", &action, + N_("show the patch file being applied or merged"), + ACTION_SHOW_CURRENT_PATCH), OPT_END(), }; @@ -570,6 +577,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) usage_with_options(builtin_rebase_usage, builtin_rebase_options); + if (action == ACTION_EDIT_TODO && !is_interactive(&options)) + die(_("The --edit-todo action can only be used during " + "interactive rebase.")); + switch (action) { case ACTION_CONTINUE: { struct object_id head; @@ -639,8 +650,18 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) die(_("could not remove '%s'"), options.state_dir); goto cleanup; } + case ACTION_EDIT_TODO: + options.action = "edit-todo"; + options.dont_finish_rebase = 1; + goto run_rebase; + case ACTION_SHOW_CURRENT_PATCH: + options.action = "show-current-patch"; + options.dont_finish_rebase = 1; + goto run_rebase; + case NO_ACTION: + break; default: - die("TODO"); + BUG("action: %d", action); } /* Make sure no rebase is in progress */ From 33181bbc23a7da627d9ba980d0eefeb6e22f412e Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:54 -0700 Subject: [PATCH 030/403] builtin rebase: support `ignore-whitespace` option This commit adds support for the `--ignore-whitespace` option of the rebase command. This option is simply passed to the `--am` backend. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 6ce50eae0f..f023fb4339 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -527,6 +527,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_SHOW_CURRENT_PATCH, } action = NO_ACTION; int committer_date_is_author_date = 0; + int ignore_whitespace = 0; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, N_("revision"), @@ -542,6 +543,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, N_("do not show diffstat of what changed upstream"), PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, + OPT_BOOL(0, "ignore-whitespace", &ignore_whitespace, + N_("passed to 'git apply'")), OPT_BOOL(0, "signoff", &options.signoff, N_("add a Signed-off-by: line to each commit")), OPT_BOOL(0, "committer-date-is-author-date", @@ -773,6 +776,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.flags |= REBASE_FORCE; } + if (ignore_whitespace) + strbuf_addstr(&options.git_am_opt, " --ignore-whitespace"); + switch (options.type) { case REBASE_MERGE: case REBASE_INTERACTIVE: From d90f8a8c78bdaa4a0761a91d989a5a2a63a19eb5 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:21 +0545 Subject: [PATCH 031/403] builtin rebase: actions require a rebase in progress This commit prevents actions (such as --continue, --skip) from running when there is no rebase in progress. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 12d34848bd..9238757443 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -577,6 +577,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) usage_with_options(builtin_rebase_usage, builtin_rebase_options); + if (action != NO_ACTION && !in_progress) + die(_("No rebase in progress?")); + if (action == ACTION_EDIT_TODO && !is_interactive(&options)) die(_("The --edit-todo action can only be used during " "interactive rebase.")); From 8c89fb7a954bd57b727a7d75fbd47683f3165620 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:56 -0700 Subject: [PATCH 032/403] builtin rebase: support `ignore-date` option This commit adds support for `--ignore-date` which is passed to `git am` to easily change the dates of the rebased commits. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index f023fb4339..0f3e156dac 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -527,6 +527,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) ACTION_SHOW_CURRENT_PATCH, } action = NO_ACTION; int committer_date_is_author_date = 0; + int ignore_date = 0; int ignore_whitespace = 0; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, @@ -550,6 +551,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "committer-date-is-author-date", &committer_date_is_author_date, N_("passed to 'git am'")), + OPT_BOOL(0, "ignore-date", &ignore_date, + N_("passed to 'git am'")), OPT_BIT('f', "force-rebase", &options.flags, N_("cherry-pick all commits, even if unchanged"), REBASE_FORCE), @@ -779,6 +782,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (ignore_whitespace) strbuf_addstr(&options.git_am_opt, " --ignore-whitespace"); + if (ignore_date) { + strbuf_addstr(&options.git_am_opt, " --ignore-date"); + options.flags |= REBASE_FORCE; + } + switch (options.type) { case REBASE_MERGE: case REBASE_INTERACTIVE: From 582d4063e7d03bc84cb29ea8774a404513439ea7 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Wed, 8 Aug 2018 20:51:22 +0545 Subject: [PATCH 033/403] builtin rebase: stop if `git am` is in progress This commit checks for the file `applying` used by `git am` in `rebase-apply/` and if the file is present it means `git am` is in progress so it errors out. Signed-off-by: Pratik Karki Signed-off-by: Junio C Hamano --- builtin/rebase.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 9238757443..2165656ae2 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -539,6 +539,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) git_config(rebase_config, &options); + strbuf_reset(&buf); + strbuf_addf(&buf, "%s/applying", apply_dir()); + if(file_exists(buf.buf)) + die(_("It looks like 'git am' is in progress. Cannot rebase.")); + if (is_directory(apply_dir())) { options.type = REBASE_AM; options.state_dir = apply_dir(); From 5610523103e76e99a89b54def7eeee422e9eea6d Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:57 -0700 Subject: [PATCH 034/403] builtin rebase: support `keep-empty` option The `--keep-empty` option can be used to keep the commits that do not change anything from its parents in the result. While the scripted version uses `interactive_rebase=implied` to indicate that the rebase needs to use the `git-rebase--interactive` backend in non-interactive mode as fallback when figuring out which backend to use, the C version needs to use a different route because the backend will already be chosen during the `parse_options()` call. Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 0f3e156dac..2336b6b979 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -95,6 +95,7 @@ struct rebase_options { const char *action; int signoff; int allow_rerere_autoupdate; + int keep_empty; }; static int is_interactive(struct rebase_options *opts) @@ -103,6 +104,23 @@ static int is_interactive(struct rebase_options *opts) opts->type == REBASE_PRESERVE_MERGES; } +static void imply_interactive(struct rebase_options *opts, const char *option) +{ + switch (opts->type) { + case REBASE_AM: + die(_("%s requires an interactive rebase"), option); + break; + case REBASE_INTERACTIVE: + case REBASE_PRESERVE_MERGES: + break; + case REBASE_MERGE: + /* we silently *upgrade* --merge to --interactive if needed */ + default: + opts->type = REBASE_INTERACTIVE; /* implied */ + break; + } +} + /* Returns the filename prefixed by the state_dir */ static const char *state_dir_path(const char *filename, struct rebase_options *opts) { @@ -276,6 +294,7 @@ static int run_specific_rebase(struct rebase_options *opts) opts->allow_rerere_autoupdate < 0 ? "" : opts->allow_rerere_autoupdate ? "--rerere-autoupdate" : "--no-rerere-autoupdate"); + add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : ""); switch (opts->type) { case REBASE_AM: @@ -588,6 +607,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) &options.allow_rerere_autoupdate, N_("allow rerere to update index with resolved " "conflict")), + OPT_BOOL('k', "keep-empty", &options.keep_empty, + N_("preserve empty commits during rebase")), OPT_END(), }; @@ -787,6 +808,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.flags |= REBASE_FORCE; } + if (options.keep_empty) + imply_interactive(&options, "--keep-empty"); + switch (options.type) { case REBASE_MERGE: case REBASE_INTERACTIVE: From 4b3866d888bcf7042127fe2a96cd41f93c8712b8 Mon Sep 17 00:00:00 2001 From: Pratik Karki Date: Tue, 4 Sep 2018 14:59:58 -0700 Subject: [PATCH 035/403] builtin rebase: support `--autosquash` This commit adds support for the `--autosquash` option which is used to automatically squash the commits marked as `squash` or `fixup` in their messages. This is converted following `git-legacy-rebase.sh` closely. This option can also be configured via the Git config setting rebase.autosquash. To support this, we also add a custom rebase_config() function in this commit that will be used instead (and falls back to) git_default_config(). Signed-off-by: Pratik Karki Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin/rebase.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 2336b6b979..e2b3fc2154 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -96,6 +96,7 @@ struct rebase_options { int signoff; int allow_rerere_autoupdate; int keep_empty; + int autosquash; }; static int is_interactive(struct rebase_options *opts) @@ -295,6 +296,7 @@ static int run_specific_rebase(struct rebase_options *opts) opts->allow_rerere_autoupdate ? "--rerere-autoupdate" : "--no-rerere-autoupdate"); add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : ""); + add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : ""); switch (opts->type) { case REBASE_AM: @@ -455,6 +457,11 @@ static int rebase_config(const char *var, const char *value, void *data) return 0; } + if (!strcmp(var, "rebase.autosquash")) { + opts->autosquash = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, data); } @@ -609,6 +616,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) "conflict")), OPT_BOOL('k', "keep-empty", &options.keep_empty, N_("preserve empty commits during rebase")), + OPT_BOOL(0, "autosquash", &options.autosquash, + N_("move commits that begin with " + "squash!/fixup! under -i")), OPT_END(), }; From 14eb003f66139ec26c8e159328090030208335c1 Mon Sep 17 00:00:00 2001 From: Alban Gruin Date: Fri, 10 Aug 2018 18:51:28 +0200 Subject: [PATCH 036/403] sequencer: make three functions and an enum from sequencer.c public This makes rebase_path_todo(), get_missing_commit_check_level(), write_message() and the enum check_level accessible outside sequencer.c, renames check_level to missing_commit_check_level, and prefixes its value names by MISSING_COMMIT_ to avoid namespace pollution. This function and this enum will eventually be moved to rebase-interactive.c and become static again, so no special attention was given to the naming. This will be needed for the rewrite of append_todo_help() from shell to C, as it will be in a new library source file, rebase-interactive.c. Signed-off-by: Alban Gruin Signed-off-by: Junio C Hamano --- sequencer.c | 26 +++++++++++--------------- sequencer.h | 11 +++++++++++ 2 files changed, 22 insertions(+), 15 deletions(-) diff --git a/sequencer.c b/sequencer.c index dc2c58d464..8f65432a92 100644 --- a/sequencer.c +++ b/sequencer.c @@ -52,7 +52,7 @@ static GIT_PATH_FUNC(rebase_path, "rebase-merge") * the lines are processed, they are removed from the front of this * file and written to the tail of 'done'. */ -static GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") +GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") /* * The rebase command lines that have already been processed. A line * is moved here when it is first handled, before any associated user @@ -373,8 +373,8 @@ static void print_advice(int show_hint, struct replay_opts *opts) } } -static int write_message(const void *buf, size_t len, const char *filename, - int append_eol) +int write_message(const void *buf, size_t len, const char *filename, + int append_eol) { struct lock_file msg_file = LOCK_INIT; @@ -4407,24 +4407,20 @@ int transform_todos(unsigned flags) return i; } -enum check_level { - CHECK_IGNORE = 0, CHECK_WARN, CHECK_ERROR -}; - -static enum check_level get_missing_commit_check_level(void) +enum missing_commit_check_level get_missing_commit_check_level(void) { const char *value; if (git_config_get_value("rebase.missingcommitscheck", &value) || !strcasecmp("ignore", value)) - return CHECK_IGNORE; + return MISSING_COMMIT_CHECK_IGNORE; if (!strcasecmp("warn", value)) - return CHECK_WARN; + return MISSING_COMMIT_CHECK_WARN; if (!strcasecmp("error", value)) - return CHECK_ERROR; + return MISSING_COMMIT_CHECK_ERROR; warning(_("unrecognized setting %s for option " "rebase.missingCommitsCheck. Ignoring."), value); - return CHECK_IGNORE; + return MISSING_COMMIT_CHECK_IGNORE; } define_commit_slab(commit_seen, unsigned char); @@ -4436,7 +4432,7 @@ define_commit_slab(commit_seen, unsigned char); */ int check_todo_list(void) { - enum check_level check_level = get_missing_commit_check_level(); + enum missing_commit_check_level check_level = get_missing_commit_check_level(); struct strbuf todo_file = STRBUF_INIT; struct todo_list todo_list = TODO_LIST_INIT; struct strbuf missing = STRBUF_INIT; @@ -4453,7 +4449,7 @@ int check_todo_list(void) advise_to_edit_todo = res = parse_insn_buffer(todo_list.buf.buf, &todo_list); - if (res || check_level == CHECK_IGNORE) + if (res || check_level == MISSING_COMMIT_CHECK_IGNORE) goto leave_check; /* Mark the commits in git-rebase-todo as seen */ @@ -4488,7 +4484,7 @@ int check_todo_list(void) if (!missing.len) goto leave_check; - if (check_level == CHECK_ERROR) + if (check_level == MISSING_COMMIT_CHECK_ERROR) advise_to_edit_todo = res = 1; fprintf(stderr, diff --git a/sequencer.h b/sequencer.h index c751c9d6e4..63e18a1035 100644 --- a/sequencer.h +++ b/sequencer.h @@ -8,6 +8,7 @@ struct commit; const char *git_path_commit_editmsg(void); const char *git_path_seq_dir(void); +const char *rebase_path_todo(void); #define APPEND_SIGNOFF_DEDUP (1u << 0) @@ -62,6 +63,15 @@ struct replay_opts { }; #define REPLAY_OPTS_INIT { .action = -1, .current_fixups = STRBUF_INIT } +enum missing_commit_check_level { + MISSING_COMMIT_CHECK_IGNORE = 0, + MISSING_COMMIT_CHECK_WARN, + MISSING_COMMIT_CHECK_ERROR +}; + +int write_message(const void *buf, size_t len, const char *filename, + int append_eol); + /* Call this to setup defaults before parsing command line options */ void sequencer_init_config(struct replay_opts *opts); int sequencer_pick_revisions(struct replay_opts *opts); @@ -84,6 +94,7 @@ int sequencer_make_script(FILE *out, int argc, const char **argv, int sequencer_add_exec_commands(const char *command); int transform_todos(unsigned flags); +enum missing_commit_check_level get_missing_commit_check_level(void); int check_todo_list(void); int skip_unnecessary_picks(void); int rearrange_squash(void); From d1a7668eb8a4edf50d0ddf2ddd52656d2d4f829b Mon Sep 17 00:00:00 2001 From: Alban Gruin Date: Fri, 10 Aug 2018 18:51:29 +0200 Subject: [PATCH 037/403] rebase -i: rewrite append_todo_help() in C This rewrites append_todo_help() from shell to C. It also incorporates some parts of initiate_action() and complete_action() that also write help texts to the todo file. This also introduces the source file rebase-interactive.c. This file will contain functions necessary for interactive rebase that are too specific for the sequencer, and is part of libgit.a. Two flags are added to rebase--helper.c: one to call append_todo_help() (`--append-todo-help`), and another one to tell append_todo_help() to write the help text suited for the edit-todo mode (`--write-edit-todo`). Finally, append_todo_help() is removed from git-rebase--interactive.sh to use `rebase--helper --append-todo-help` instead. Signed-off-by: Alban Gruin Signed-off-by: Junio C Hamano --- Makefile | 1 + builtin/rebase--helper.c | 11 ++++-- git-rebase--interactive.sh | 52 ++--------------------------- rebase-interactive.c | 68 ++++++++++++++++++++++++++++++++++++++ rebase-interactive.h | 6 ++++ 5 files changed, 86 insertions(+), 52 deletions(-) create mode 100644 rebase-interactive.c create mode 100644 rebase-interactive.h diff --git a/Makefile b/Makefile index 5a969f5830..e819e4dcb6 100644 --- a/Makefile +++ b/Makefile @@ -935,6 +935,7 @@ LIB_OBJS += quote.o LIB_OBJS += range-diff.o LIB_OBJS += reachable.o LIB_OBJS += read-cache.o +LIB_OBJS += rebase-interactive.o LIB_OBJS += reflog-walk.o LIB_OBJS += refs.o LIB_OBJS += refs/files-backend.o diff --git a/builtin/rebase--helper.c b/builtin/rebase--helper.c index f7c2a5fdc8..05e73e71d4 100644 --- a/builtin/rebase--helper.c +++ b/builtin/rebase--helper.c @@ -3,6 +3,7 @@ #include "config.h" #include "parse-options.h" #include "sequencer.h" +#include "rebase-interactive.h" static const char * const builtin_rebase_helper_usage[] = { N_("git rebase--helper []"), @@ -12,12 +13,12 @@ static const char * const builtin_rebase_helper_usage[] = { int cmd_rebase__helper(int argc, const char **argv, const char *prefix) { struct replay_opts opts = REPLAY_OPTS_INIT; - unsigned flags = 0, keep_empty = 0, rebase_merges = 0; + unsigned flags = 0, keep_empty = 0, rebase_merges = 0, write_edit_todo = 0; int abbreviate_commands = 0, rebase_cousins = -1; enum { CONTINUE = 1, ABORT, MAKE_SCRIPT, SHORTEN_OIDS, EXPAND_OIDS, CHECK_TODO_LIST, SKIP_UNNECESSARY_PICKS, REARRANGE_SQUASH, - ADD_EXEC + ADD_EXEC, APPEND_TODO_HELP } command = 0; struct option options[] = { OPT_BOOL(0, "ff", &opts.allow_ff, N_("allow fast-forward")), @@ -27,6 +28,8 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "rebase-merges", &rebase_merges, N_("rebase merge commits")), OPT_BOOL(0, "rebase-cousins", &rebase_cousins, N_("keep original branch points of cousins")), + OPT_BOOL(0, "write-edit-todo", &write_edit_todo, + N_("append the edit-todo message to the todo-list")), OPT_CMDMODE(0, "continue", &command, N_("continue rebase"), CONTINUE), OPT_CMDMODE(0, "abort", &command, N_("abort rebase"), @@ -45,6 +48,8 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix) N_("rearrange fixup/squash lines"), REARRANGE_SQUASH), OPT_CMDMODE(0, "add-exec-commands", &command, N_("insert exec commands in todo list"), ADD_EXEC), + OPT_CMDMODE(0, "append-todo-help", &command, + N_("insert the help in the todo list"), APPEND_TODO_HELP), OPT_END() }; @@ -84,5 +89,7 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix) return !!rearrange_squash(); if (command == ADD_EXEC && argc == 2) return !!sequencer_add_exec_commands(argv[1]); + if (command == APPEND_TODO_HELP && argc == 1) + return !!append_todo_help(write_edit_todo, keep_empty); usage_with_options(builtin_rebase_helper_usage, options); } diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index 299ded2137..94c23a7af2 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -39,38 +39,6 @@ comment_for_reflog () { esac } -append_todo_help () { - gettext " -Commands: -p, pick = use commit -r, reword = use commit, but edit the commit message -e, edit = use commit, but stop for amending -s, squash = use commit, but meld into previous commit -f, fixup = like \"squash\", but discard this commit's log message -x, exec = run command (the rest of the line) using shell -d, drop = remove commit -l, label