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853bd0d267
One of the tests in t5401 creates a bunch of branches by calling
git-branch(1) for every one of them. This is quite inefficient and takes
a comparatively long time even on Unix systems where spawning processes
is comparatively fast. Refactor it to instead use git-update-ref(1),
which leads to an almost 10-fold speedup:
```
Benchmark 1: ./t5401-update-hooks.sh (rev = HEAD)
Time (mean ± σ): 983.2 ms ± 97.6 ms [User: 328.8 ms, System: 679.2 ms]
Range (min … max): 882.9 ms … 1078.0 ms 3 runs
Benchmark 2: ./t5401-update-hooks.sh (rev = HEAD~)
Time (mean ± σ): 9.312 s ± 0.398 s [User: 2.766 s, System: 6.617 s]
Range (min … max): 8.885 s … 9.674 s 3 runs
Summary
./t5401-update-hooks.sh (rev = HEAD) ran
9.47 ± 1.02 times faster than ./t5401-update-hooks.sh (rev = HEAD~)
```
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
142 lines
4 KiB
Bash
Executable file
142 lines
4 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006 Shawn O. Pearce
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#
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test_description='Test the update hook infrastructure.'
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. ./test-lib.sh
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test_expect_success setup '
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echo This is a test. >a &&
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git update-index --add a &&
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tree0=$(git write-tree) &&
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commit0=$(echo setup | git commit-tree $tree0) &&
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echo We hope it works. >a &&
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git update-index a &&
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tree1=$(git write-tree) &&
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commit1=$(echo modify | git commit-tree $tree1 -p $commit0) &&
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git update-ref refs/heads/main $commit0 &&
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git update-ref refs/heads/tofail $commit1 &&
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git clone --bare ./. victim.git &&
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GIT_DIR=victim.git git update-ref refs/heads/tofail $commit1 &&
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git update-ref refs/heads/main $commit1 &&
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git update-ref refs/heads/tofail $commit0 &&
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test_hook --setup -C victim.git pre-receive <<-\EOF &&
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printf %s "$@" >>$GIT_DIR/pre-receive.args
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cat - >$GIT_DIR/pre-receive.stdin
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echo STDOUT pre-receive
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echo STDERR pre-receive >&2
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EOF
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test_hook --setup -C victim.git update <<-\EOF &&
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echo "$@" >>$GIT_DIR/update.args
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read x; printf %s "$x" >$GIT_DIR/update.stdin
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echo STDOUT update $1
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echo STDERR update $1 >&2
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test "$1" = refs/heads/main || exit
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EOF
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test_hook --setup -C victim.git post-receive <<-\EOF &&
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printf %s "$@" >>$GIT_DIR/post-receive.args
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cat - >$GIT_DIR/post-receive.stdin
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echo STDOUT post-receive
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echo STDERR post-receive >&2
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EOF
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test_hook --setup -C victim.git post-update <<-\EOF
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echo "$@" >>$GIT_DIR/post-update.args
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read x; printf %s "$x" >$GIT_DIR/post-update.stdin
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echo STDOUT post-update
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echo STDERR post-update >&2
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EOF
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'
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test_expect_success push '
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test_must_fail git send-pack --force ./victim.git \
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main tofail >send.out 2>send.err
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'
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test_expect_success 'updated as expected' '
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test $(GIT_DIR=victim.git git rev-parse main) = $commit1 &&
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test $(GIT_DIR=victim.git git rev-parse tofail) = $commit1
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'
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test_expect_success 'hooks ran' '
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test -f victim.git/pre-receive.args &&
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test -f victim.git/pre-receive.stdin &&
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test -f victim.git/update.args &&
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test -f victim.git/update.stdin &&
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test -f victim.git/post-receive.args &&
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test -f victim.git/post-receive.stdin &&
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test -f victim.git/post-update.args &&
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test -f victim.git/post-update.stdin
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'
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test_expect_success 'pre-receive hook input' '
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(echo $commit0 $commit1 refs/heads/main &&
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echo $commit1 $commit0 refs/heads/tofail
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) | test_cmp - victim.git/pre-receive.stdin
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'
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test_expect_success 'update hook arguments' '
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(echo refs/heads/main $commit0 $commit1 &&
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echo refs/heads/tofail $commit1 $commit0
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) | test_cmp - victim.git/update.args
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'
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test_expect_success 'post-receive hook input' '
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echo $commit0 $commit1 refs/heads/main |
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test_cmp - victim.git/post-receive.stdin
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'
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test_expect_success 'post-update hook arguments' '
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echo refs/heads/main |
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test_cmp - victim.git/post-update.args
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'
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test_expect_success 'all hook stdin is /dev/null' '
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test_must_be_empty victim.git/update.stdin &&
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test_must_be_empty victim.git/post-update.stdin
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'
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test_expect_success 'all *-receive hook args are empty' '
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test_must_be_empty victim.git/pre-receive.args &&
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test_must_be_empty victim.git/post-receive.args
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'
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test_expect_success 'send-pack produced no output' '
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test_must_be_empty send.out
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'
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cat <<EOF >expect
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remote: STDOUT pre-receive
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remote: STDERR pre-receive
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remote: STDOUT update refs/heads/main
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remote: STDERR update refs/heads/main
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remote: STDOUT update refs/heads/tofail
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remote: STDERR update refs/heads/tofail
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remote: error: hook declined to update refs/heads/tofail
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remote: STDOUT post-receive
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remote: STDERR post-receive
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remote: STDOUT post-update
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remote: STDERR post-update
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EOF
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test_expect_success 'send-pack stderr contains hook messages' '
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grep ^remote: send.err | sed "s/ *\$//" >actual &&
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test_cmp expect actual
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'
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test_expect_success 'pre-receive hook that forgets to read its input' '
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test_hook --clobber -C victim.git pre-receive <<-\EOF &&
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exit 0
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EOF
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rm -f victim.git/hooks/update victim.git/hooks/post-update &&
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printf "create refs/heads/branch_%d main\n" $(test_seq 100 999) >input &&
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git update-ref --stdin <input &&
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git push ./victim.git "+refs/heads/*:refs/heads/*"
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'
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test_done
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