Not able to detect branch from Git post-receive ho

问题:

I've got a post receive hook setup on the remote repo that tries to determine the branch name of the incoming push as follows:

$branch = `git rev-parse --abbrev-ref HEAD`

What i'm finding, though, is that no matter what branch I push from my $branch variable gets set with 'master'.

Any ideas?

回答1:

The post-receive hook gets the same data as the pre-receive and not as arguments, but from stdin. The following is sent for all refs:

oldRev (space) newRev (space) refName (Line feed)

You could parse out the ref name with this bash script:

while read oldrev newrev ref
do
    echo "$ref"
done

回答2:

You could also do something like this using bash variable substitution:

read oldrev newrev ref

branchname=${ref#refs/heads/}

git checkout ${branchname}

回答3:

Magnus' solution didnt work for me, but this did:

#!/bin/bash

echo "determining branch"

if ! [ -t 0 ]; then
  read -a ref
fi

IFS='/' read -ra REF <<< "${ref[2]}"
branch="${REF[2]}"

if [ "master" == "$branch" ]; then
  echo 'master was pushed'
fi

if [ "staging" == "$branch" ]; then
  echo 'staging was pushed'
fi

echo "done"

回答4:

Both these answers are correct, but I was having trouble getting stdin to the next common function post-receive-email. Here is what I ended up with:

read oldrev newrev ref
echo "$oldrev" "$newrev" "$ref" | . /usr/share/git-core/contrib/hooks/post-receive-email


if [ "refs/heads/qa" == "$ref" ]; then
  # Big Tuna YO!
  wget -q -O - --connect-timeout=2 http://127.0.0.1:3000/hooks/build/qa_now
fi

回答5:

You need to read the arguments that are being passed to the script. That should have the branch name and new and old revisions and run for each branch pushed