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git/t/t1800-hook.sh

155 lines
3.5 KiB

#!/bin/sh
test_description='git-hook command'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
hook API: fix v2.36.0 regression: hooks should be connected to a TTY Fix a regression reported[1] against f443246b9f2 (commit: convert {pre-commit,prepare-commit-msg} hook to hook.h, 2021-12-22): Due to using the run_process_parallel() API in the earlier 96e7225b310 (hook: add 'run' subcommand, 2021-12-22) we'd capture the hook's stderr and stdout, and thus lose the connection to the TTY in the case of e.g. the "pre-commit" hook. As a preceding commit notes GNU parallel's similar --ungroup option also has it emit output faster. While we're unlikely to have hooks that emit truly massive amounts of output (or where the performance thereof matters) it's still informative to measure the overhead. In a similar "seq" test we're now ~30% faster: $ cat .git/hooks/seq-hook; git hyperfine -L rev origin/master,HEAD~0 -s 'make CFLAGS=-O3' './git hook run seq-hook' #!/bin/sh seq 100000000 Benchmark 1: ./git hook run seq-hook' in 'origin/master Time (mean ± σ): 787.1 ms ± 13.6 ms [User: 701.6 ms, System: 534.4 ms] Range (min … max): 773.2 ms … 806.3 ms 10 runs Benchmark 2: ./git hook run seq-hook' in 'HEAD~0 Time (mean ± σ): 603.4 ms ± 1.6 ms [User: 573.1 ms, System: 30.3 ms] Range (min … max): 601.0 ms … 606.2 ms 10 runs Summary './git hook run seq-hook' in 'HEAD~0' ran 1.30 ± 0.02 times faster than './git hook run seq-hook' in 'origin/master' 1. https://lore.kernel.org/git/CA+dzEBn108QoMA28f0nC8K21XT+Afua0V2Qv8XkR8rAeqUCCZw@mail.gmail.com/ Reported-by: Anthony Sottile <asottile@umich.edu> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> [jc: minor fix-up to tests for consistency] Signed-off-by: Junio C Hamano <gitster@pobox.com>
6 months ago
. "$TEST_DIRECTORY"/lib-terminal.sh
test_expect_success 'git hook usage' '
test_expect_code 129 git hook &&
test_expect_code 129 git hook run &&
test_expect_code 129 git hook run -h &&
test_expect_code 129 git hook run --unknown 2>err &&
grep "unknown option" err
'
test_expect_success 'git hook run: nonexistent hook' '
cat >stderr.expect <<-\EOF &&
error: cannot find a hook named test-hook
EOF
test_expect_code 1 git hook run test-hook 2>stderr.actual &&
test_cmp stderr.expect stderr.actual
'
test_expect_success 'git hook run: nonexistent hook with --ignore-missing' '
git hook run --ignore-missing does-not-exist 2>stderr.actual &&
test_must_be_empty stderr.actual
'
test_expect_success 'git hook run: basic' '
test_hook test-hook <<-EOF &&
echo Test hook
EOF
cat >expect <<-\EOF &&
Test hook
EOF
git hook run test-hook 2>actual &&
test_cmp expect actual
'
test_expect_success 'git hook run: stdout and stderr both write to our stderr' '
test_hook test-hook <<-EOF &&
echo >&1 Will end up on stderr
echo >&2 Will end up on stderr
EOF
cat >stderr.expect <<-\EOF &&
Will end up on stderr
Will end up on stderr
EOF
git hook run test-hook >stdout.actual 2>stderr.actual &&
test_cmp stderr.expect stderr.actual &&
test_must_be_empty stdout.actual
'
for code in 1 2 128 129
do
test_expect_success "git hook run: exit code $code is passed along" '
test_hook test-hook <<-EOF &&
exit $code
EOF
test_expect_code $code git hook run test-hook
'
done
test_expect_success 'git hook run arg u ments without -- is not allowed' '
test_expect_code 129 git hook run test-hook arg u ments
'
test_expect_success 'git hook run -- pass arguments' '
test_hook test-hook <<-\EOF &&
echo $1
echo $2
EOF
cat >expect <<-EOF &&
arg
u ments
EOF
git hook run test-hook -- arg "u ments" 2>actual &&
test_cmp expect actual
'
test_expect_success 'git hook run -- out-of-repo runs excluded' '
test_hook test-hook <<-EOF &&
echo Test hook
EOF
nongit test_must_fail git hook run test-hook
'
test_expect_success 'git -c core.hooksPath=<PATH> hook run' '
mkdir my-hooks &&
write_script my-hooks/test-hook <<-\EOF &&
echo Hook ran $1 >>actual
EOF
cat >expect <<-\EOF &&
Test hook
Hook ran one
Hook ran two
Hook ran three
Hook ran four
EOF
test_hook test-hook <<-EOF &&
echo Test hook
EOF
# Test various ways of specifying the path. See also
# t1350-config-hooks-path.sh
>actual &&
git hook run test-hook -- ignored 2>>actual &&
git -c core.hooksPath=my-hooks hook run test-hook -- one 2>>actual &&
git -c core.hooksPath=my-hooks/ hook run test-hook -- two 2>>actual &&
git -c core.hooksPath="$PWD/my-hooks" hook run test-hook -- three 2>>actual &&
git -c core.hooksPath="$PWD/my-hooks/" hook run test-hook -- four 2>>actual &&
test_cmp expect actual
'
hook API: fix v2.36.0 regression: hooks should be connected to a TTY Fix a regression reported[1] against f443246b9f2 (commit: convert {pre-commit,prepare-commit-msg} hook to hook.h, 2021-12-22): Due to using the run_process_parallel() API in the earlier 96e7225b310 (hook: add 'run' subcommand, 2021-12-22) we'd capture the hook's stderr and stdout, and thus lose the connection to the TTY in the case of e.g. the "pre-commit" hook. As a preceding commit notes GNU parallel's similar --ungroup option also has it emit output faster. While we're unlikely to have hooks that emit truly massive amounts of output (or where the performance thereof matters) it's still informative to measure the overhead. In a similar "seq" test we're now ~30% faster: $ cat .git/hooks/seq-hook; git hyperfine -L rev origin/master,HEAD~0 -s 'make CFLAGS=-O3' './git hook run seq-hook' #!/bin/sh seq 100000000 Benchmark 1: ./git hook run seq-hook' in 'origin/master Time (mean ± σ): 787.1 ms ± 13.6 ms [User: 701.6 ms, System: 534.4 ms] Range (min … max): 773.2 ms … 806.3 ms 10 runs Benchmark 2: ./git hook run seq-hook' in 'HEAD~0 Time (mean ± σ): 603.4 ms ± 1.6 ms [User: 573.1 ms, System: 30.3 ms] Range (min … max): 601.0 ms … 606.2 ms 10 runs Summary './git hook run seq-hook' in 'HEAD~0' ran 1.30 ± 0.02 times faster than './git hook run seq-hook' in 'origin/master' 1. https://lore.kernel.org/git/CA+dzEBn108QoMA28f0nC8K21XT+Afua0V2Qv8XkR8rAeqUCCZw@mail.gmail.com/ Reported-by: Anthony Sottile <asottile@umich.edu> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> [jc: minor fix-up to tests for consistency] Signed-off-by: Junio C Hamano <gitster@pobox.com>
6 months ago
test_hook_tty () {
cat >expect <<-\EOF
STDOUT TTY
STDERR TTY
EOF
test_when_finished "rm -rf repo" &&
git init repo &&
test_commit -C repo A &&
test_commit -C repo B &&
git -C repo reset --soft HEAD^ &&
test_hook -C repo pre-commit <<-EOF &&
test -t 1 && echo STDOUT TTY >>actual || echo STDOUT NO TTY >>actual &&
test -t 2 && echo STDERR TTY >>actual || echo STDERR NO TTY >>actual
EOF
test_terminal git -C repo "$@" &&
test_cmp expect repo/actual
}
test_expect_success TTY 'git hook run: stdout and stderr are connected to a TTY' '
test_hook_tty hook run pre-commit
'
test_expect_success TTY 'git commit: stdout and stderr are connected to a TTY' '
test_hook_tty commit -m"B.new"
'
test_done