Files
git/t/t4019-diff-wserror.sh
Michael Montalbo cd352cab5b t: convert grep assertions to test_grep
Replace bare grep with test_grep in test assertions across the
suite, including sourced test helpers (lib-*.sh, *-tests.sh).
test_grep prints the contents of the file being searched on
failure, making debugging easier than a bare grep which fails
silently.

Only assertion-style greps are converted: grep used as a filter
in pipelines, command substitutions, conditionals, or with
redirected I/O is left as-is with a "# lint-ok" annotation.
Existing '! test_grep' calls are rewritten to 'test_grep !' so
that the diagnostic output is preserved on failure.

The conversion was generated using a grep-assertion linter
(greplint.pl, added in the following commit) to identify bare
grep calls at command position.  To reproduce:

    # Step 1: mark bare greps that should not be converted
    sed -i '/! grep "$m" \.git\/packed-refs/s/$/ # lint-ok: file may not exist (reftable)/' \
        t/t1400-update-ref.sh
    sed -i '/! grep dirty file3 &&/{/lint-ok/!s/$/ # lint-ok: file may not exist after --quit/}' \
        t/t3420-rebase-autostash.sh
    sed -i '/grep -vf before commits\.raw/s/$/ # lint-ok: data filter/' \
        t/t5326-multi-pack-bitmaps.sh
    sed -i '/! grep $d shallow-client\/\.git\/shallow/s/$/ # lint-ok: file may not exist after repack/' \
        t/t5537-fetch-shallow.sh
    sed -i '/grep -E "^\[0-9a-f\].*|| :/s/$/ # lint-ok: data filter/' \
        t/t5702-protocol-v2.sh
    sed -i '/! grep gitdir squatting-clone/s/$/ # lint-ok: file may not exist after failed clone/' \
        t/t7450-bad-git-dotfiles.sh

    # Step 2: reorder pre-existing '! test_grep' to 'test_grep !'
    # (must come before steps 3-4 so greplint does not see them)
    sed -i 's/! test_grep/test_grep !/' t/t0031-lockfile-pid.sh
    sed -i 's/! test_grep/test_grep !/' t/t5300-pack-object.sh
    sed -i 's/! test_grep/test_grep !/' t/t5319-multi-pack-index.sh

    # Step 3: convert '! grep' -> 'test_grep !'
    perl t/greplint.pl t/*.sh 2>&1 | cut -d: -f1,2 |
    while IFS=: read f l; do
        sed -i "${l}s/! *grep/test_grep !/" "$f"
    done

    # Step 4: convert remaining 'grep' -> 'test_grep'
    perl t/greplint.pl t/*.sh 2>&1 | cut -d: -f1,2 |
    while IFS=: read f l; do
        sed -i "${l}s/grep/test_grep/" "$f"
    done

To verify, run: make -C t test-greplint

Signed-off-by: Michael Montalbo <mmontalbo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-13 21:13:57 -07:00

298 lines
6.6 KiB
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#!/bin/sh
test_description='diff whitespace error detection'
. ./test-lib.sh
test_expect_success setup '
git config diff.color.whitespace "blue reverse" &&
>F &&
git add F &&
echo " Eight SP indent" >>F &&
echo " HT and SP indent" >>F &&
echo "With trailing SP " >>F &&
echo "Carriage ReturnQ" | tr Q "\015" >>F &&
echo "No problem" >>F &&
echo >>F
'
blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
printf "\033[%s" "$blue_grep" >check-grep
if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
then
grep_a=grep
elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
then
grep_a='grep -a'
else
grep_a=grep ;# expected to fail...
fi
rm -f check-grep
prepare_output () {
git diff --color >output
$grep_a "$blue_grep" output >error
$grep_a -v "$blue_grep" output >normal
return 0
}
test_expect_success default '
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'default (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace" >.gitattributes &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'default, tabwidth=10 (attribute)' '
git config core.whitespace "tabwidth=10" &&
echo "F whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'no check (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F -whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'no check, tabwidth=10 (attribute), must be irrelevant' '
git config core.whitespace "tabwidth=10" &&
echo "F -whitespace" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -trail' '
rm -f .gitattributes &&
git config core.whitespace -trail &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -trail (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=-trail" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -space' '
rm -f .gitattributes &&
git config core.whitespace -space &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'without -space (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=-space" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With error >/dev/null &&
grep Return error >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only' '
rm -f .gitattributes &&
git config core.whitespace indent,-trailing,-space &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=indent,-trailing,-space" >.gitattributes &&
prepare_output &&
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only, tabwidth=10' '
rm -f .gitattributes &&
git config core.whitespace indent,tabwidth=10,-trailing,-space &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with indent-non-tab only, tabwidth=10 (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=indent,-trailing,-space,tabwidth=10" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
grep With normal >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with cr-at-eol' '
rm -f .gitattributes &&
git config core.whitespace cr-at-eol &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'with cr-at-eol (attribute)' '
test_might_fail git config --unset core.whitespace &&
echo "F whitespace=trailing,cr-at-eol" >.gitattributes &&
prepare_output &&
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
grep With error >/dev/null &&
grep Return normal >/dev/null &&
grep No normal >/dev/null
'
test_expect_success 'trailing empty lines (1)' '
rm -f .gitattributes &&
test_must_fail git diff --check >output &&
test_grep "new blank line at" output &&
test_grep "trailing whitespace" output
'
test_expect_success 'trailing empty lines (2)' '
echo "F -whitespace" >.gitattributes &&
git diff --check >output &&
test_must_be_empty output
'
test_expect_success 'checkdiff shows correct line number for trailing blank lines' '
printf "a\nb\n" > G &&
git add G &&
printf "x\nx\nx\na\nb\nc\n\n" > G &&
[ "$(git diff --check -- G)" = "G:7: new blank line at EOF." ]
'
test_expect_success 'do not color trailing cr in context' '
test_might_fail git config --unset core.whitespace &&
rm -f .gitattributes &&
echo AAAQ | tr Q "\015" >G &&
git add G &&
echo BBBQ | tr Q "\015" >>G &&
git diff --color G | tr "\015" Q >output &&
test_grep "BBB.*${blue_grep}Q" output &&
test_grep "AAA.*\[mQ" output
'
test_expect_success 'color new trailing blank lines' '
test_write_lines a b "" "" >x &&
git add x &&
test_write_lines a "" "" "" c "" "" "" "" >x &&
git diff --color x >output &&
cnt=$($grep_a "${blue_grep}" output | wc -l) &&
test $cnt = 2
'
test_done