Schlagworte: howto

05.09.12

Deploying a website using Git via SSH remote

Git has a concept of "remotes" (tracked repositories), which allows to have
arbitrary alternate remote locations besides the typical "origin" remote, like "web".

The basic idea is to setup a user on the remote server ($SSH_DEPLOYUSER) which
is allowed to login via SSH (e.g. by adding your public SSH key to the deploy
user's ~/.ssh/authorized_keys file) and will be used to checkout what you want
to deploy.

To accomplish this you have to setup the Git working directory on the server and
add a "post-receive" hook, which will be invoked by Git after you have pushed
to the repository:

Code:

$ mkdir /path/to/repo-checkout
$ cd /path/to/repo-checkout
$ git init
# Create the post-receive file/hook (Ctrl-D to end the input to "cat"):
$ cat > .git/hooks/post-receive
#!/bin/sh
export GIT_DIR=$(pwd)
cd ..
git checkout -f
git submodule update --init --recursive
$ chmod +x .git/hooks/post-receive
$ git config --add receive.denyCurrentBranch ignore
$ chown $SSH_DEPLOYUSER -R .

On the local side you have to add a "remote" (named "web" in this case):

The final step is to initially push to it (which requires to specify the "refspec" once - following deployments can be done by just doing a "git push web"):

Code:

$ git remote add web ssh://$DEPLOYUSER@host.example.com/path/to/repo-checkout/.git
$ git push web +master:refs/heads/master

These instructions are based on the howto at toroid.org/ams/git-website-howto, but the main difference is that I am not using a "bare" repository here, which would not allow to use Git submodules; submodules require a "full" Git working directory and having a checkout of the repository requires the receive.denyCurrentBranch=ignore setting.

05.02.09

bzr-pager Plugin

I like the feature in git, where commands that produce long output get piped to $PAGER.
This means, that if you do a "git diff" and its output will not fit into the current terminal window without scrolling, it will get piped to "less" by default, so that you can easily search and scroll in the output. Additionally (and that's the main point IMHO) it does not pollute your scrollback history (when you exit from your pager, the terminal will only display the call to the command, but not its output).

Luckily, there's a plugin for bzr, which provides the same functionality: bzr-pager

You can install it as follows:

mkdir -p ~/.bazaar/plugins && \
cd ~/.bazaar/plugins && \
bzr branch lp:bzr-pager pager

By Daniel in development, Ubuntu, musthaves2009-02-05 English (EU) Email
Seitenleiste