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tutorials:scmgit-intro [2012/04/30 19:11]
memnon minor formatting
tutorials:scmgit-intro [2012/05/05 20:31] (current)
memnon Added missing public access section, $ID
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 Git also provides the command "git pull" to do a fetch followed by a merge. This is unlike CVS and Subversion, where "​update"​ works like "​pull"​. The two commands are provided because your local repo is not meant to be a copy of the remote, so you need to be able to fetch the remote without merging it into your local repository. Git also provides the command "git pull" to do a fetch followed by a merge. This is unlike CVS and Subversion, where "​update"​ works like "​pull"​. The two commands are provided because your local repo is not meant to be a copy of the remote, so you need to be able to fetch the remote without merging it into your local repository.
 +
 +
 +===== Creating a public access, read only repo =====
 +Once you have your repo setup for you to do your work in, you may have a need to make your work public. Making it public allows for other users to pull specific version of your project without having to have development rights. A slight modification to your repo is needed and some webspace to host it.
 +
 +=== Setup some webspace ===
 +To host a readonly public access version of your repo you will need to setup some space in your html directory. For our example our public repo will be accessable at http://​user.sdf.org/​devel/​proj.git
 +
 +  mkdir ~/​html/​devel
 +  hooks/​post-update
 +
 +In your repo directory for the project there is a directory that contains a set of scripts which are called at different times during your interaction with git. For more information about the "​hooks"​ directory check out githook.
 +
 +The script we will need to modify is post-update. This script is called after an update has occured on the server side of your repo. 
 +
 +<code bash>
 +#!/bin/sh
 +#
 +# File: ~/​git/​proj.git/​hooks/​post-update
 +#
 +# Description:​ Called when an update is pushed to the server
 +#
 +
 +# Location of your repo on the server
 +GIT_DIR=/​arpa/​tz/​u/​user/​git/​proj.git
 +
 +# Location of your public version of the repo
 +HTTP_DIR=/​arpa/​tz/​u/​user/​html/​devel/​proj.git
 +
 +# Update local repo info
 +git update-server-info
 +
 +# Make sure a clean copy is moved
 +rm -rf $HTTP_DIR
 +cp -rf $GIT_DIR $HTTP_DIR
 +chgrp -R nobody $HTTP_DIR
 +
 +# Directories must have Read and Execute Permissions
 +# for apache to be able to navigate them.
 +for d in `find $HTTP_DIR -type d`; do
 +  chmod a+rx $d
 +done
 +
 +# Files must have Read Permissions for apache
 +# to be able to read them.
 +for f in `find $HTTP_DIR -type f`; do
 +  chmod a+r $f
 +done
 +
 +# Display a message on the client side to show 
 +# the action has been performed.
 +echo "​Updated Public Access"​
 +</​code>​
 +
 +Now that you have setup this script make sure its executable.
 +  ​
 +  chmod a+x ~/​git/​proj.git/​hooks/​post-update
 +
 +You can now run the script directly or wait until you have committed and pushed an update to your server.
 +
 +=== Verifying script is run. ===
 +
 +When you push an update to your private development repo, a new output has been added by our script.
 +
 +  $ git push
 +  Counting objects: 5, done.
 +  Compressing objects: 100% (2/2), done.
 +  Writing objects: 100% (3/3), 256 bytes, done.
 +  Total 3 (delta 1), reused 0 (delta 0)
 +  remote: Updated Public Access
 +  To user@sdf.org:​git/​proj.git
 +     ​e60a9de..1f8a43f ​ master -> master
 +  $
 +
 +In the above example there is a new line labled "​remote"​ which means that during the push, the server produced output. The line matches the last line in our post-update script. Now you have two methods of access.
 +
 +**Private Access**: git clone user@sdf.org:​~/​git/​proj.git \\
 +**Public Readonly Access**: git clone http://​user.sdf.org/​devel/​proj.git
  
 ===== Further Reading ===== ===== Further Reading =====
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 Best look online for more in-depth tutorials.. ​ Best look online for more in-depth tutorials.. ​
 I haven'​t needed these features yet as my projects are all just me, so I don't know how to do it! I haven'​t needed these features yet as my projects are all just me, so I don't know how to do it!
 +
 +$Id: scmgit-intro.html,​v 1.6 2011/06/24 16:08:10 jecxjo Exp $