git/t/t7113-post-index-change-hook.sh
Ben Peart 1956ecd0ab read-cache: add post-index-change hook
Add a post-index-change hook that is invoked after the index is written in
do_write_locked_index().

This hook is meant primarily for notification, and cannot affect
the outcome of git commands that trigger the index write.

The hook is passed a flag to indicate whether the working directory was
updated or not and a flag indicating if a skip-worktree bit could have
changed.  These flags enable the hook to optimize its response to the
index change notification.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-15 11:00:33 -08:00

145 lines
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Executable File

#!/bin/sh
test_description='post index change hook'
. ./test-lib.sh
test_expect_success 'setup' '
mkdir -p dir1 &&
touch dir1/file1.txt &&
echo testing >dir1/file2.txt &&
git add . &&
git commit -m "initial"
'
test_expect_success 'test status, add, commit, others trigger hook without flags set' '
mkdir -p .git/hooks &&
write_script .git/hooks/post-index-change <<-\EOF &&
if test "$1" -eq 1; then
echo "Invalid combination of flags passed to hook; updated_workdir is set." >testfailure
exit 1
fi
if test "$2" -eq 1; then
echo "Invalid combination of flags passed to hook; updated_skipworktree is set." >testfailure
exit 1
fi
if test -f ".git/index.lock"; then
echo ".git/index.lock exists" >testfailure
exit 3
fi
if ! test -f ".git/index"; then
echo ".git/index does not exist" >testfailure
exit 3
fi
echo "success" >testsuccess
EOF
mkdir -p dir2 &&
touch dir2/file1.txt &&
touch dir2/file2.txt &&
: force index to be dirty &&
test-tool chmtime +60 dir1/file1.txt &&
git status &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git add . &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git commit -m "second" &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git checkout -- dir1/file1.txt &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git update-index &&
test_path_is_missing testsuccess &&
test_path_is_missing testfailure &&
git reset --soft &&
test_path_is_missing testsuccess &&
test_path_is_missing testfailure
'
test_expect_success 'test checkout and reset trigger the hook' '
write_script .git/hooks/post-index-change <<-\EOF &&
if test "$1" -eq 1 && test "$2" -eq 1; then
echo "Invalid combination of flags passed to hook; updated_workdir and updated_skipworktree are both set." >testfailure
exit 1
fi
if test "$1" -eq 0 && test "$2" -eq 0; then
echo "Invalid combination of flags passed to hook; neither updated_workdir or updated_skipworktree are set." >testfailure
exit 2
fi
if test "$1" -eq 1; then
if test -f ".git/index.lock"; then
echo "updated_workdir set but .git/index.lock exists" >testfailure
exit 3
fi
if ! test -f ".git/index"; then
echo "updated_workdir set but .git/index does not exist" >testfailure
exit 3
fi
else
echo "update_workdir should be set for checkout" >testfailure
exit 4
fi
echo "success" >testsuccess
EOF
: force index to be dirty &&
test-tool chmtime +60 dir1/file1.txt &&
git checkout master &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
test-tool chmtime +60 dir1/file1.txt &&
git checkout HEAD &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
test-tool chmtime +60 dir1/file1.txt &&
git reset --hard &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git checkout -B test &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure
'
test_expect_success 'test reset --mixed and update-index triggers the hook' '
write_script .git/hooks/post-index-change <<-\EOF &&
if test "$1" -eq 1 && test "$2" -eq 1; then
echo "Invalid combination of flags passed to hook; updated_workdir and updated_skipworktree are both set." >testfailure
exit 1
fi
if test "$1" -eq 0 && test "$2" -eq 0; then
echo "Invalid combination of flags passed to hook; neither updated_workdir or updated_skipworktree are set." >testfailure
exit 2
fi
if test "$2" -eq 1; then
if test -f ".git/index.lock"; then
echo "updated_skipworktree set but .git/index.lock exists" >testfailure
exit 3
fi
if ! test -f ".git/index"; then
echo "updated_skipworktree set but .git/index does not exist" >testfailure
exit 3
fi
else
echo "updated_skipworktree should be set for reset --mixed and update-index" >testfailure
exit 4
fi
echo "success" >testsuccess
EOF
: force index to be dirty &&
test-tool chmtime +60 dir1/file1.txt &&
git reset --mixed --quiet HEAD~1 &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git hash-object -w --stdin <dir1/file2.txt >expect &&
git update-index --cacheinfo 100644 "$(cat expect)" dir1/file1.txt &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure &&
git update-index --skip-worktree dir1/file2.txt &&
git update-index --remove dir1/file2.txt &&
test_path_is_file testsuccess && rm -f testsuccess &&
test_path_is_missing testfailure
'
test_done