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05ef58ec1f
Bill Lear pointed out that it is easy to send out notifications of changes with the update hook, but successful execution of the update hook does not necessarily mean that the ref was actually updated. Lock contention on the ref or being unable to append to the reflog may prevent the ref from being changed. Sending out notifications prior to the ref actually changing is very misleading. To help this situation I am introducing two new hooks to the receive-pack flow: pre-receive and post-receive. These new hooks are invoked only once per receive-pack execution and are passed three arguments per ref (refname, old-sha1, new-sha1). The new post-receive hook is ideal for sending out notifications, as it has the complete list of all refnames that were successfully updated as well as the old and new SHA-1 values. This allows more interesting notifications to be sent. Multiple ref updates could be easily summarized into one email, for example. The new pre-receive hook is ideal for logging update attempts, as it is run only once for the entire receive-pack operation. It can also be used to verify multiple updates happen at once, e.g. an update to the `maint` head must also be accompained by a new annotated tag. Lots of documentation improvements for receive-pack are included in this change, as we want to make sure the new hooks are clearly explained. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
135 lines
3.5 KiB
Bash
Executable file
135 lines
3.5 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 $commit0
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'
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cat >victim/.git/hooks/pre-receive <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/pre-receive.args
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read x; printf "$x" >$GIT_DIR/pre-receive.stdin
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echo STDOUT pre-receive
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echo STDERR pre-receive >&2
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EOF
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chmod u+x victim/.git/hooks/pre-receive
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cat >victim/.git/hooks/update <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/update.args
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read x; printf "$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 "$1" = refs/heads/master || exit
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EOF
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chmod u+x victim/.git/hooks/update
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cat >victim/.git/hooks/post-receive <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/post-receive.args
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read x; printf "$x" >$GIT_DIR/post-receive.stdin
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echo STDOUT post-receive
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echo STDERR post-receive >&2
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EOF
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chmod u+x victim/.git/hooks/post-receive
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cat >victim/.git/hooks/post-update <<'EOF'
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#!/bin/sh
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echo "$@" >>$GIT_DIR/post-update.args
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read x; printf "$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 arguments' '
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echo \
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refs/heads/master $commit0 $commit1 \
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refs/heads/tofail $commit1 $commit0 \
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| diff - victim/.git/pre-receive.args
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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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) | diff - victim/.git/update.args
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'
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test_expect_success 'post-receive hook arguments' '
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echo refs/heads/master $commit0 $commit1 |
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diff - victim/.git/post-receive.args
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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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diff -u - 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/pre-receive.stdin &&
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! test -s victim/.git/update.stdin &&
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! test -s victim/.git/post-receive.stdin &&
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! test -s victim/.git/post-update.stdin
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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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diff - actual <expect
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'
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test_done
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