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Sergey Vlasov, Andy Parkins and Alex Riesen all pointed out that it is possible for a single invocation of receive-pack to be given more refs than the OS might allow us to pass as command line parameters to a single hook invocation. We don't want to break these up into multiple invocations (like xargs might do) as that makes it impossible for the pre-receive hook to verify multiple related ref updates occur at the same time, and it makes it harder for post-receive to send out a single batch notification. Instead we pass the reference data on a pipe connected to the hook's stdin, supplying one ref per line to the hook. This way a single hook invocation can obtain an infinite amount of ref data, without bumping into any operating system limits. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
136 lines
3.6 KiB
Bash
Executable file
136 lines
3.6 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/master $commit0 &&
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git-update-ref refs/heads/tofail $commit1 &&
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git-clone ./. victim &&
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GIT_DIR=victim/.git git-update-ref refs/heads/tofail $commit1 &&
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git-update-ref refs/heads/master $commit1 &&
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git-update-ref refs/heads/tofail $commit0
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'
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cat >victim/.git/hooks/pre-receive <<'EOF'
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#!/bin/sh
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printf "$@" >>$GIT_DIR/pre-receive.args
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cat - >$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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chmod u+x victim/.git/hooks/pre-receive
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cat >victim/.git/hooks/update <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/update.args
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read x; printf "$x" >$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 "$1" = refs/heads/master || exit
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EOF
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chmod u+x victim/.git/hooks/update
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cat >victim/.git/hooks/post-receive <<'EOF'
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#!/bin/sh
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printf "$@" >>$GIT_DIR/post-receive.args
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cat - >$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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chmod u+x victim/.git/hooks/post-receive
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cat >victim/.git/hooks/post-update <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/post-update.args
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read x; printf "$x" >$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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chmod u+x victim/.git/hooks/post-update
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test_expect_failure push '
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git-send-pack --force ./victim/.git master 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 master) = $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/master;
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echo $commit1 $commit0 refs/heads/tofail
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) | git diff - 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/master $commit0 $commit1;
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echo refs/heads/tofail $commit1 $commit0
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) | git diff - 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/master |
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git diff - 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/master |
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git diff - 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 -s victim/.git/update.stdin &&
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! test -s 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 -s victim/.git/pre-receive.args &&
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! test -s victim/.git/post-receive.args
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'
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test_expect_failure 'send-pack produced no output' '
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test -s send.out
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'
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cat <<EOF >expect
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STDOUT pre-receive
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STDERR pre-receive
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STDOUT update refs/heads/master
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STDERR update refs/heads/master
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STDOUT update refs/heads/tofail
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STDERR update refs/heads/tofail
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STDOUT post-receive
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STDERR post-receive
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STDOUT post-update
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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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egrep ^STD send.err >actual &&
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git diff - actual <expect
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'
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test_done
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