mirror of
https://github.com/git-for-windows/git.git
synced 2026-03-17 22:19:19 -05:00
t7527: create test for fsmonitor--daemon
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
This commit is contained in:
Jeff Hostetler
committed by
Johannes Schindelin
Johannes Schindelin
parent
0901275002
commit
0c112ee1d5
485
t/t7527-builtin-fsmonitor.sh
Executable file
485
t/t7527-builtin-fsmonitor.sh
Executable file
@@ -0,0 +1,485 @@
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#!/bin/sh
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test_description='built-in file system watcher'
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. ./test-lib.sh
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# Ask the fsmonitor daemon to insert a little delay before responding to
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# client commands like `git status` and `git fsmonitor--daemon --query` to
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# allow recent filesystem events to be received by the daemon. This helps
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# the CI/PR builds be more stable.
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#
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# An arbitrary millisecond value.
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#
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GIT_TEST_FSMONITOR_CLIENT_DELAY=1000
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export GIT_TEST_FSMONITOR_CLIENT_DELAY
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git version --build-options | grep "feature:" | grep "fsmonitor--daemon" || {
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skip_all="The built-in FSMonitor is not supported on this platform"
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test_done
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}
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kill_repo () {
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r=$1
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git -C $r fsmonitor--daemon --stop >/dev/null 2>/dev/null
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rm -rf $1
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return 0
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}
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start_daemon () {
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case "$#" in
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1) r="-C $1";;
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*) r="";
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esac
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git $r fsmonitor--daemon --start || return $?
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git $r fsmonitor--daemon --is-running || return $?
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return 0
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}
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test_expect_success 'explicit daemon start and stop' '
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test_when_finished "kill_repo test_explicit" &&
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git init test_explicit &&
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start_daemon test_explicit &&
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git -C test_explicit fsmonitor--daemon --stop &&
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test_must_fail git -C test_explicit fsmonitor--daemon --is-running
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'
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test_expect_success 'implicit daemon start' '
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test_when_finished "kill_repo test_implicit" &&
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git init test_implicit &&
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test_must_fail git -C test_implicit fsmonitor--daemon --is-running &&
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# query will implicitly start the daemon.
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#
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# for test-script simplicity, we send a V1 timestamp rather than
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# a V2 token. either way, the daemon response to any query contains
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# a new V2 token. (the daemon may complain that we sent a V1 request,
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# but this test case is only concerned with whether the daemon was
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# implicitly started.)
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GIT_TRACE2_EVENT="$PWD/.git/trace" \
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git -C test_implicit fsmonitor--daemon --query 0 >actual &&
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nul_to_q <actual >actual.filtered &&
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grep "builtin:" actual.filtered &&
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# confirm that a daemon was started in the background.
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#
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# since the mechanism for starting the background daemon is platform
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# dependent, just confirm that the foreground command received a
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# response from the daemon.
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grep :\"query/response-length\" .git/trace &&
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git -C test_implicit fsmonitor--daemon --is-running &&
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git -C test_implicit fsmonitor--daemon --stop &&
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test_must_fail git -C test_implicit fsmonitor--daemon --is-running
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'
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test_expect_success 'implicit daemon stop (delete .git)' '
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test_when_finished "kill_repo test_implicit_1" &&
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git init test_implicit_1 &&
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start_daemon test_implicit_1 &&
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# deleting the .git directory will implicitly stop the daemon.
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rm -rf test_implicit_1/.git &&
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# Create an empty .git directory so that the following Git command
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# will stay relative to the `-C` directory. Without this, the Git
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# command will (override the requested -C argument) and crawl out
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# to the containing Git source tree. This would make the test
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# result dependent upon whether we were using fsmonitor on our
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# development worktree.
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sleep 1 &&
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mkdir test_implicit_1/.git &&
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test_must_fail git -C test_implicit_1 fsmonitor--daemon --is-running
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'
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test_expect_success 'implicit daemon stop (rename .git)' '
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test_when_finished "kill_repo test_implicit_2" &&
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git init test_implicit_2 &&
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start_daemon test_implicit_2 &&
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# renaming the .git directory will implicitly stop the daemon.
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mv test_implicit_2/.git test_implicit_2/.xxx &&
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# Create an empty .git directory so that the following Git command
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# will stay relative to the `-C` directory. Without this, the Git
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# command will (override the requested -C argument) and crawl out
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# to the containing Git source tree. This would make the test
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# result dependent upon whether we were using fsmonitor on our
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# development worktree.
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sleep 1 &&
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mkdir test_implicit_2/.git &&
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test_must_fail git -C test_implicit_2 fsmonitor--daemon --is-running
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'
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test_expect_success 'cannot start multiple daemons' '
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test_when_finished "kill_repo test_multiple" &&
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git init test_multiple &&
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start_daemon test_multiple &&
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test_must_fail git -C test_multiple fsmonitor--daemon --start 2>actual &&
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grep "fsmonitor--daemon is already running" actual &&
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git -C test_multiple fsmonitor--daemon --stop &&
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test_must_fail git -C test_multiple fsmonitor--daemon --is-running
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'
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test_expect_success 'setup' '
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>tracked &&
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>modified &&
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>delete &&
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>rename &&
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mkdir dir1 &&
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>dir1/tracked &&
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>dir1/modified &&
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>dir1/delete &&
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>dir1/rename &&
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mkdir dir2 &&
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>dir2/tracked &&
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>dir2/modified &&
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>dir2/delete &&
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>dir2/rename &&
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mkdir dirtorename &&
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>dirtorename/a &&
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>dirtorename/b &&
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cat >.gitignore <<-\EOF &&
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.gitignore
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expect*
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actual*
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EOF
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git -c core.useBuiltinFSMonitor= add . &&
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test_tick &&
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git -c core.useBuiltinFSMonitor= commit -m initial &&
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git config core.useBuiltinFSMonitor true
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'
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test_expect_success 'update-index implicitly starts daemon' '
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test_must_fail git fsmonitor--daemon --is-running &&
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GIT_TRACE2_EVENT="$PWD/.git/trace_implicit_1" \
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git update-index --fsmonitor &&
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git fsmonitor--daemon --is-running &&
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test_might_fail git fsmonitor--daemon --stop &&
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grep \"event\":\"start\".*\"fsmonitor--daemon\" .git/trace_implicit_1
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'
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test_expect_success 'status implicitly starts daemon' '
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test_must_fail git fsmonitor--daemon --is-running &&
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GIT_TRACE2_EVENT="$PWD/.git/trace_implicit_2" \
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git status >actual &&
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git fsmonitor--daemon --is-running &&
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test_might_fail git fsmonitor--daemon --stop &&
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grep \"event\":\"start\".*\"fsmonitor--daemon\" .git/trace_implicit_2
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'
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edit_files() {
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echo 1 >modified
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echo 2 >dir1/modified
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echo 3 >dir2/modified
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>dir1/untracked
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}
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delete_files() {
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rm -f delete
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rm -f dir1/delete
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rm -f dir2/delete
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}
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create_files() {
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echo 1 >new
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echo 2 >dir1/new
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echo 3 >dir2/new
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}
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rename_files() {
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mv rename renamed
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mv dir1/rename dir1/renamed
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mv dir2/rename dir2/renamed
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}
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file_to_directory() {
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rm -f delete
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mkdir delete
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echo 1 >delete/new
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}
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directory_to_file() {
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rm -rf dir1
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echo 1 >dir1
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}
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verify_status() {
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git status >actual &&
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GIT_INDEX_FILE=.git/fresh-index git read-tree master &&
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GIT_INDEX_FILE=.git/fresh-index git -c core.useBuiltinFSMonitor= status >expect &&
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test_cmp expect actual &&
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echo HELLO AFTER &&
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cat .git/trace &&
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echo HELLO AFTER
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}
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# The next few test cases confirm that our fsmonitor daemon sees each type
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# of OS filesystem notification that we care about. At this layer we just
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# ensure we are getting the OS notifications and do not try to confirm what
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# is reported by `git status`.
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#
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# We run a simple query after modifying the filesystem just to introduce
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# a bit of a delay so that the trace logging from the daemon has time to
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# get flushed to disk.
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#
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# We `reset` and `clean` at the bottom of each test (and before stopping the
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# daemon) because these commands might implicitly restart the daemon.
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clean_up_repo_and_stop_daemon () {
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git reset --hard HEAD
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git clean -fd
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git fsmonitor--daemon --stop
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rm -f .git/trace
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}
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test_expect_success 'edit some files' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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edit_files &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dir1/modified$" .git/trace &&
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grep "^event: dir2/modified$" .git/trace &&
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grep "^event: modified$" .git/trace &&
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grep "^event: dir1/untracked$" .git/trace
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'
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test_expect_success 'create some files' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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create_files &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dir1/new$" .git/trace &&
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grep "^event: dir2/new$" .git/trace &&
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grep "^event: new$" .git/trace
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'
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test_expect_success 'delete some files' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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delete_files &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dir1/delete$" .git/trace &&
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grep "^event: dir2/delete$" .git/trace &&
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grep "^event: delete$" .git/trace
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'
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test_expect_success 'rename some files' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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rename_files &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dir1/rename$" .git/trace &&
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grep "^event: dir2/rename$" .git/trace &&
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grep "^event: rename$" .git/trace &&
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grep "^event: dir1/renamed$" .git/trace &&
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grep "^event: dir2/renamed$" .git/trace &&
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grep "^event: renamed$" .git/trace
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'
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test_expect_success 'rename directory' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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mv dirtorename dirrenamed &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dirtorename/*$" .git/trace &&
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grep "^event: dirrenamed/*$" .git/trace
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'
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test_expect_success 'file changes to directory' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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file_to_directory &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: delete$" .git/trace &&
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grep "^event: delete/new$" .git/trace
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'
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test_expect_success 'directory changes to a file' '
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test_when_finished "clean_up_repo_and_stop_daemon" &&
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(
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GIT_TRACE_FSMONITOR="$PWD/.git/trace" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon
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) &&
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directory_to_file &&
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git fsmonitor--daemon --query 0 >/dev/null 2>&1 &&
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grep "^event: dir1$" .git/trace
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'
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# The next few test cases exercise the token-resync code. When filesystem
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# drops events (because of filesystem velocity or because the daemon isn't
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# polling fast enough), we need to discard the cached data (relative to the
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# current token) and start collecting events under a new token.
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#
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# the 'git fsmonitor--daemon --flush' command can be used to send a "flush"
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# message to a running daemon and ask it to do a flush/resync.
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test_expect_success 'flush cached data' '
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test_when_finished "kill_repo test_flush" &&
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git init test_flush &&
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(
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GIT_TEST_FSMONITOR_TOKEN=true &&
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export GIT_TEST_FSMONITOR_TOKEN &&
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GIT_TRACE_FSMONITOR="$PWD/.git/trace_daemon" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon test_flush
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) &&
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# The daemon should have an initial token with no events in _0 and
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# then a few (probably platform-specific number of) events in _1.
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# These should both have the same <token_id>.
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git -C test_flush fsmonitor--daemon --query "builtin:test_00000001:0" >actual_0 &&
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nul_to_q <actual_0 >actual_q0 &&
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touch test_flush/file_1 &&
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touch test_flush/file_2 &&
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git -C test_flush fsmonitor--daemon --query "builtin:test_00000001:0" >actual_1 &&
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nul_to_q <actual_1 >actual_q1 &&
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grep "file_1" actual_q1 &&
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# Force a flush. This will change the <token_id>, reset the <seq_nr>, and
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# flush the file data. Then create some events and ensure that the file
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# again appears in the cache. It should have the new <token_id>.
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git -C test_flush fsmonitor--daemon --flush >flush_0 &&
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nul_to_q <flush_0 >flush_q0 &&
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grep "^builtin:test_00000002:0Q/Q$" flush_q0 &&
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git -C test_flush fsmonitor--daemon --query "builtin:test_00000002:0" >actual_2 &&
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nul_to_q <actual_2 >actual_q2 &&
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grep "^builtin:test_00000002:0Q$" actual_q2 &&
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touch test_flush/file_3 &&
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git -C test_flush fsmonitor--daemon --query "builtin:test_00000002:0" >actual_3 &&
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nul_to_q <actual_3 >actual_q3 &&
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grep "file_3" actual_q3
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'
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# The next few test cases create repos where the .git directory is NOT
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# inside the one of the working directory. That is, where .git is a file
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# that points to a directory elsewhere. This happens for submodules and
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# non-primary worktrees.
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test_expect_success 'setup worktree base' '
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git init wt-base &&
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echo 1 >wt-base/file1 &&
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git -C wt-base add file1 &&
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git -C wt-base commit -m "c1"
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'
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test_expect_success 'worktree with .git file' '
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git -C wt-base worktree add ../wt-secondary &&
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(
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GIT_TRACE2_PERF="$PWD/trace2_wt_secondary" &&
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export GIT_TRACE2_PERF &&
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GIT_TRACE_FSMONITOR="$PWD/trace_wt_secondary" &&
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export GIT_TRACE_FSMONITOR &&
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start_daemon wt-secondary
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) &&
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git -C wt-secondary fsmonitor--daemon --stop &&
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test_must_fail git -C wt-secondary fsmonitor--daemon --is-running
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'
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test_done
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