How to auto checkout build branches with git post-receive?

[kevinquillen]

I am using TravisCI to build and deploy to a remote repo.

When Travis calls the blt deploy command and commits the artifact to develop-build and pushes, on the remote server I want to capture this event in a post-receive hook and check out to the appropriate working directory.

Here is the post-receive hook:

#!/bin/sh

while read oldrev newrev ref
do
  branch=`echo $ref | cut -d/ -f3-`

  if [ "develop-build" == "$branch" ]; then
    sudo git --work-tree=/data/websites/dev.mysite.org/web --git-dir=/var/repos/mysite-org.git checkout -f $branch
    sudo chown -Rf www-data:www-data /data/websites/dev.mysite.org/web
  fi
done

While I can see the change with git log -g, it doesn't appear that the checkout happens.

Is there something unique to the deploy/commit of the artifact branches that prevent this from working?

[kevinquillen]

Welp, looks like this was the difference between specifying #!/bin/bash vs #!/bin/sh. Syntax differences.

See: http://stackoverflow.com/questions/3411048/unexpected-operator-in-shell-programming