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Force git to run post-recieve hook, even if everything is "up-to-date" - Stack Overflow

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Original source (stackoverflow.com)
Tags: git deployment post-receive hooks up-to-date
Clipped on: 2013-08-22

How do I force git to run a post-recieve hook on a server even if I don't have a new commit to push?

Background

I use git to automatically deploy a website to a server. I have a bare repo in a protected area of the server and a post-receive hook that checks out the contents and systematically copies over certain files into a public_html folder. (Inspired by this tutorial)

I got tired of modifying the post-recieve hook manually on the server, so my post-receive hook now actually copies over a new version of itself from the repo:

#!/bin/sh

rm -rf ~/../protected/*
GIT_WORK_TREE=~/../protected git checkout -f

# Rewrite over this file with any updates from the post-receive file
cp ~/../protected/post-receive hooks/post-receive

# Delete public_html
# Copy stuff public_html

The problem, of course, is that the new post-receive hook never gets run. A seemingly simple solution would be merely to push again, but now everything is already up to date. This is annoying, because it requires me to fake a new commit every time I update the post-receive hook. Is there a way to invoke the post-receive hook without faking a commit or sshing in?

What I tried

git push
git push -f
asked Dec 3 '12 at 4:26
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2 Answers

Add a shell script named `do-post-receive' to the local repository:

$ ls -ld .git
$ echo 'echo "Hello, World!"' >do-post-receive
$ git add do-post-receive
$ git commit do-post-receive -m 'added do-post-receive'

Replace your hooks/post-receive hook on the server with:

#! /bin/sh
while read OLDID NEWID BRANCH; do
  test "$BRANCH" = refs/heads/master && eval "$(git show master:do-post-receive)"
done

(Make sure to chmod 755 hooks/post-receive on the server.)

Push your changes from the local repository to the server, and watch your do-post-receive code run:

$ git push origin master
...
remote: Hello, World!
...
answered Apr 13 at 7:47
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Very clever! Unfortunately I may not be able to try this out for awhile to give the accept... But be patient with me. – AndyL Apr 13 at 11:29
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Sounds promising, more than my answer anyway. +1 – VonC Apr 13 at 15:08
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In short, no, it doesn't seem to be possible to make that particular hook run when no commits are pushed.

Which probably means you are not using the right mechanism to update said hook.
A server hook is likely to not be called if the git detects "everything is up to date" on the client side.

answered Dec 3 '12 at 7:00
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