Chaining git hooks

After further investigation and testing, here is a working solution:

create file .git/hooks/hook-chain as follows

#!/bin/bash
#
# author: orefalo

hookname=`basename $0`


FILE=`mktemp`
trap 'rm -f $FILE' EXIT
cat - > $FILE

for hook in $GIT_DIR/hooks/$hookname.*
do
    if test -x "$hook"; then
#       echo $hook
        cat $FILE | $hook "$@"
        status=$?

        if test $status -ne 0; then
            echo Hook $hook failed with error code $status
            exit $status
        fi
    fi
done

Now link any hook that requires chaining, for instance

• ln -s hook-chain update
• ln -s hook-chain post-receive

finally, create the chains by renaming them as hookname.action

 -rwxr-xr-x. 1 git  git  6710  functions
 -rwxr-xr-x. 1 git  git   280  hook-chain
 -rwxr-xr-x. 1 git  git  1524  post-mirror
 lrwxrwxrwx. 1 root root   10  post-receive -> hook-chain
 -rwxr-xr-x. 1 git  git  8763  post-receive.1email
 -rwxr-xr-x. 1 git  git  1745  post-receive.2github
 -rwxr-xr-x. 1 git  git   473  post-upload-pack
 -rwxr-xr-x. 1 git  git   346  pre-receive
 lrwxrwxrwx. 1 root root   10  update -> hook-chain
 -rwxr-xr-x. 1 git  git  2975  update.1acl
 -rwxr-xr-x. 1 git  git   328  update.2github

for instance, in the sample above, the update hook will run update.1acl followed by update.2github.

The post-receive hook with run post-receive.1email followed by post-receive.2github