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Cron with MAC OS X

2014-03-21T07:03:19Z

Battya:

{{Cron}}
'''NOTE: This describes setting up Moodle's cron using OSX's launchd system. However, since OSX is a variant of Unix, cron is also an option. It should be noted, however, that OSX cron is actually managed by launchd.'''

==launchd==

In Mac OS X 10.5+ you will find the system daemon ''launchd'' for this service. This daemon offers a standardized interface to any user and all programs started automatically by the system. Please look at http://developer.apple.com/macosx/launchd.html for more informations about the configurations and all parameters.

The service should get the web page http://path.to.your/moodle/admin/cron.php every few minutes. The configuration will be done by the file named ''moodle4mac.cron.plist'' which must be placed in the system folder ''/Library/LaunchDaemons/'' ... surely you can use any other file name but it should say something about the function of the service. The extension must be ''.plist''. After any reboot of your Mac server the cron service will start automaticly because the file is placed in the correct system folder.

'''NOTE:''' Check the [[Cron settings]] to make sure running the web version of Moodle's cron is permitted.

===Use the graphical way===
You can use Lingon (no longer supported, unfortunately) to add a new daemon plist or to edit one. It produces the same text as you can write in your text editor. http://sourceforge.net/projects/lingon/files/

[[Image:macosx-lingon.png|thumb|center|Lingon screenshot]]

===Use a text editor===
Please use a text editor to write the needed file. You can open the Terminal and use the system editors vi or pico. But you can also write the text file with any GUI text editor ... I mostly use TextWrangler ... but do NOT take an editor for formatted texts like Microsoft Word or OpenOffice Writer. You must get pure text!

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>KeepAlive</key><false/>
<key>Label</key><string>moodle4mac.cron</string>
<key>ProgramArguments</key>
<array>
<string>curl</string>
<string>-s</string>
<string>http://your-server-address/moodle19/admin/cron.php</string>
</array>
<key>RunAtLoad</key><true />
<key>StartInterval</key><integer>300</integer>
<key>StandardErrorPath</key><string>/dev/null</string>
<key>StandardOutPath</key><string>/dev/null</string>
</dict>
</plist>

The label string must be the same as the file name is but without the extension ''.plist''. Save the text file ''/Library/LaunchDaemons/moodle4mac.cron.plist''. The owner of the file must be set to the system user ''root'' with the following:

sudo chown root /Library/LaunchDaemons/moodle4mac.cron.plist

If you use a site with SSL (ie: it has an http'''s''':// protocol) you either need to have your SSL certificates listed for use by the CURL utility ([http://curl.haxx.se/docs/sslcerts.html see these docs] for more details) OR you must use the '-k' switch in addition to the '-s' switch used above; your arguments line would then read: `<string>-s -k</string>`.

That's all, really!

===How to start and stop the cron service===
You can start the new cron service in the Terminal.

sudo launchctl load /Library/LaunchDaemons/moodle4mac.cron.plist

The following command would stop the service. If you want to activate changes in the cron service you need to ''unload'' and then to ''load'' the daemon again.

sudo launchctl unload /Library/LaunchDaemons/moodle4mac.cron.plist

===Only one service for two servers?===
For my server I needed to have a cron service for to instances ''moodle19'' and ''moodle20'' ... no problem ... with the typo ''moodle[19-20]'' I will get a cron service for both.

<nowiki>curl -s http://your-server-address/moodle[19-20]/admin/cron.php</nowiki>

To see if the cron service works correctly you should look at the ''access.log'' of your web server. The cron.php should be accessed every 5 minutes ... on my server for both Moodle instances ''moodle19'' and ''moodle20'' ... oh yes, it works!!

192.168.0.220 - - [30/Jul/2009:22:10:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 1136
192.168.0.220 - - [30/Jul/2009:22:10:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 1403
192.168.0.220 - - [30/Jul/2009:22:11:18 +0200] "OPTIONS * HTTP/1.0" 200 -
192.168.0.220 - - [30/Jul/2009:22:15:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 735
192.168.0.220 - - [30/Jul/2009:22:15:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 964
192.168.0.220 - - [30/Jul/2009:22:20:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 1136
192.168.0.220 - - [30/Jul/2009:22:20:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 1365

[[es:Cron con MAC OS X]]

Cron with MAC OS X

2014-03-21T06:22:08Z

Battya:

{{Cron}}
'''NOTE: This describes setting up Moodle's cron using OSX's launchd system. However, since OSX is a variant of Unix, we recommend simply using crontab, as it works just as well and is much simpler'''

==launchd==

In Mac OS X 10.5+ you will find the system daemon ''launchd'' for this service. This daemon offers a standardized interface to any user and all programs started automatically by the system. Please look at http://developer.apple.com/macosx/launchd.html for more informations about the configurations and all parameters.

The service should get the web page http://path.to.your/moodle/admin/cron.php every few minutes. The configuration will be done by the file named ''moodle4mac.cron.plist'' which must be placed in the system folder ''/Library/LaunchDaemons/'' ... surely you can use any other file name but it should say something about the function of the service. The extension must be ''.plist''. After any reboot of your Mac server the cron service will start automaticly because the file is placed in the correct system folder.

'''NOTE:''' Check the [[Cron settings]] to make sure running the web version of Moodle's cron is permitted.

===Use the graphical way===
You can use Lingon (no longer supported, unfortunately) to add a new daemon plist or to edit one. It produces the same text as you can write in your text editor. http://sourceforge.net/projects/lingon/files/

[[Image:macosx-lingon.png|thumb|center|Lingon screenshot]]

===Use a text editor===
Please use a text editor to write the needed file. You can open the Terminal and use the system editors vi or pico. But you can also write the text file with any GUI text editor ... I mostly use TextWrangler ... but do NOT take an editor for formatted texts like Microsoft Word or OpenOffice Writer. You must get pure text!

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>KeepAlive</key><false/>
<key>Label</key><string>moodle4mac.cron</string>
<key>ProgramArguments</key>
<array>
<string>curl</string>
<string>-s</string>
<string>http://your-server-address/moodle19/admin/cron.php</string>
</array>
<key>RunAtLoad</key><true />
<key>StartInterval</key><integer>300</integer>
<key>StandardErrorPath</key><string>/dev/null</string>
<key>StandardOutPath</key><string>/dev/null</string>
</dict>
</plist>

The label string must be the same as the file name is but without the extension ''.plist''. Save the text file ''/Library/LaunchDaemons/moodle4mac.cron.plist''. The owner of the file must be set to the system user ''root''. If you use a site with SSL (ie: it has an http'''s''':// protocol) you either need to have your SSL certificates listed for use by the CURL utility ([http://curl.haxx.se/docs/sslcerts.html see these docs] for more details) OR you must use the '-k' switch in addition to the '-s' switch used above; your arguments line would then read: `<string>-s -k</string>`.

That's all, really!

===How to start and stop the cron service===
You can start the new cron service in the Terminal.

sudo launchctl load /Library/LaunchDaemons/moodle4mac.cron.plist

The following command would stop the service. If you want to activate changes in the cron service you need to ''unload'' and then to ''load'' the daemon again.

sudo launchctl unload /Library/LaunchDaemons/moodle4mac.cron.plist

===Only one service for two servers?===
For my server I needed to have a cron service for to instances ''moodle19'' and ''moodle20'' ... no problem ... with the typo ''moodle[19-20]'' I will get a cron service for both.

<nowiki>curl -s http://your-server-address/moodle[19-20]/admin/cron.php</nowiki>

To see if the cron service works correctly you should look at the ''access.log'' of your web server. The cron.php should be accessed every 5 minutes ... on my server for both Moodle instances ''moodle19'' and ''moodle20'' ... oh yes, it works!!

192.168.0.220 - - [30/Jul/2009:22:10:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 1136
192.168.0.220 - - [30/Jul/2009:22:10:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 1403
192.168.0.220 - - [30/Jul/2009:22:11:18 +0200] "OPTIONS * HTTP/1.0" 200 -
192.168.0.220 - - [30/Jul/2009:22:15:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 735
192.168.0.220 - - [30/Jul/2009:22:15:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 964
192.168.0.220 - - [30/Jul/2009:22:20:56 +0200] "GET /moodle19/admin/cron.php HTTP/1.1" 200 1136
192.168.0.220 - - [30/Jul/2009:22:20:57 +0200] "GET /moodle20/admin/cron.php HTTP/1.1" 200 1365

[[es:Cron con MAC OS X]]

Git for Administrators

2014-03-13T02:33:20Z

Battya:

{{Installing Moodle}}
This page describes how to maintain a copy of Moodle on your production server which can easily be upgraded using Git. If you have customisations of Moodle core code, you are advised to follow the instructions in the [[Development:Quick Git start guide for Moodle development|Quick Git start guide for Moodle development]].

To get the most of of Git it is worth making the effort to understand its basic concepts - see the See also section below. It can be a bit of a learning curve, especially if you are used to CVS or Subversion.

== Getting hold of Git (Windows, OSX, Linux and others) ==

Support for Git was, up until recently, mostly confined to Linux but builds are now available for most popular operating systems:

* List of downloads from Git site - http://git-scm.com/download

Once you have downloaded and installed your OS relevant git installation, the git commands in this document should work with your operating system.

== Obtaining the code from Git ==

The command line version of Git is discussed here. Graphical clients are little more than wrappers around the command line version, so you should be able to deduce the correct parameters quite easily.

You can find the official Moodle git repository at git://git.moodle.org/moodle.git (with an official clone at git://github.com/moodle/moodle.git). To initialize your local checkout, use
<pre>
$ cd /path/to/your/webroot
$ git clone git://git.moodle.org/moodle.git (1)
$ cd moodle
$ git branch -a (2)
$ git branch --track MOODLE_26_STABLE origin/MOODLE_26_STABLE (3)
$ git checkout MOODLE_26_STABLE (4)
</pre>
* The command (1) initializes the new local repository as a clone of the 'upstream' (i.e. the remote server based) moodle.git repository. The upstream repository is called 'origin' by default. It creates a new directory named ''moodle'', where it downloads all the files. This operation can take a while as it is actually getting the entire history of all Moodle versions
* The command (2) lists all available branches.
* Use the command (3) to create a new local branch called MOODLE_26_STABLE and set it to track the remote branch MOODLE_26_STABLE from the upstream repository.
* The command (4) actually switches to the newly created local branch.

Note that Git has a huge number of options for each command and it's actually possible to do the above process with a single command (left as an exercise!!).

==Git from behind a firewall==

Git uses a read-only protocol that may be blocked by your firewall (port 9418). If this is a problem, you can use Github's http version <nowiki>https://github.com/moodle/moodle.git</nowiki>. It's a bit slower, so use the Git protocol if you can.

== Updating your installation ==

The Moodle development team performs integration and testing of fixed bugs every Monday and Tuesday. On Wednesday you can install all patches by updating your code. Check the [http://git.moodle.org/gw?p=moodle.git;a=summary shortlog] to see if the official repository has been already updated or not.

To update your code to the latest version (on the MOODLE_26_STABLE branch) '''all''' you have to do is:
<pre>
$ cd /path/to/your/moodle/
$ git pull
</pre>
If this is a production site you should still consider the [[Upgrade]] instructions (e.g. take backups).

== Installing a contributed extension from its Git repository ==

This is one way to handle adding plugins from other Git repositories into your Moodle repository. Another way is to use Git Submodules. However, at the time of writing, this is one of Git's rougher features and should be regarded as an advanced option.

For example, let us say we want to install the [[Certificate module]] from its Git repository into our Moodle 2.6.
<pre>
$ cd /path/to/your/moodle/
$ cd mod (1)
$ git clone https://github.com/markn86/moodle-mod_certificate.git certificate (2)
$ cd certificate
$ git checkout -b MOODLE_26_STABLE origin/MOODLE_26_STABLE (3)
$ git branch -d master (4)
</pre>
The command (1) changes the current directory into the ''mod'' folder of your local Moodle clone. The command (2) creates a new subdirectory ''certificate'' and makes a local clone of vanilla Certificate repository. The command (3) creates a new local branch that will track the remote branch with a Certificate version for Moodle 2.6. The command (4) deletes the ''master'' that was created automatically by git-clone in (2) as we do not want it in this production checkout.

Note: you should check first the compatibility of a module with your Moodle branch by asking directly to the Maintainer before cloning the repo or - if you want to guess it - by issueing the command below before running the command (3), in order to verify what is available among the branches:
<pre>
$ git branch -a
* master
remotes/origin/HEAD -> origin/master
remotes/origin/MOODLE_20_STABLE
remotes/origin/MOODLE_21_STABLE
remotes/origin/MOODLE_22_STABLE
remotes/origin/MOODLE_23_STABLE
remotes/origin/MOODLE_24_STABLE
remotes/origin/MOODLE_25_STABLE
remotes/origin/MOODLE_26_STABLE
remotes/origin/master
</pre>
This will avoid an error message when you issue the command (3) against a nonexistent branch, e.g.:
<pre>
§ git checkout -b MOODLE_27_STABLE origin/MOODLE_27_STABLE
fatal: git checkout: updating paths is incompatible with switching branches.
Did you intend to checkout 'origin/MOODLE_27_STABLE' which can not be resolved as commit?
</pre>

Now it is wise to put the new directory mod/certificate/ to the list of ignored files of the main Moodle clone, otherwise a status of the main clone will keep reminding you that the new code has not been checked in.
<pre>
$ cd /path/to/your/moodle/
$ echo /mod/certificate/ >> .git/info/exclude
</pre>
To update your Moodle installation now, you must visit both Git repositories and pull changes from upstream.
<pre>
$ cd /path/to/your/moodle/
$ git pull
$ cd mod/certificate
$ git pull
</pre>
Writing a shell script with these lines in the root of Moodle installation is a very good idea. Otherwise it is easy to forget what Git repositories are there within the main Moodle repository.

== See also ==

; Moodle Docs
* [[Git FAQ]]
* [[Windows installation using Git]]
* [[Git for Mac]]
* [[:dev:Moodle versions]]
* For some screenshots see [[User:Frank_Ralf/Git]] (still work in progress)
* For fixing a Tracker Issue (MDL) / Forking Moodle / CONTRIButing code ... [[User:Sam_Hemelryk/My_Moodle_Git_workflow]]
* [[Moodle_Production_Server_with_GIT|Case study Git + Moodle from Technical University Berlin]]

; Moodle forum discussions
* [https://moodle.org/mod/forum/discuss.php?d=255175 Github and Moodle deployment for production]
* [https://moodle.org/mod/forum/discuss.php?d=213695 Got GIT installed on my site- here's how!]
* [http://moodle.org/mod/forum/discuss.php?d=168094 GIT help needed]
* [http://moodle.org/mod/forum/discuss.php?d=165236 Best way to manage CONTRIB code with GIT]
* [http://moodle.org/mod/forum/discuss.php?d=167063 Handy Git tip for tracking 3rd-party modules and plugins]
* [http://moodle.org/mod/forum/discuss.php?d=167730 Moodle Git repositories]
* [http://moodle.org/mod/forum/discuss.php?d=183693 Git and CVS]
* [http://moodle.org/mod/forum/discuss.php?d=208904 GIT for dummies]
* [http://moodle.org/mod/forum/discuss.php?d=211930 Git and upgrading misunderstanding]
* [https://moodle.org/mod/forum/discuss.php?d=231046 Clear git guide for Admins (not developers)]

; External resources
* [http://thamblings.blogspot.com.au/2013/07/upgrading-moodle-from-git.html Deploying Moodle from git - Blog post from a production experience]
* [http://www.kernel.org/pub/software/scm/git/docs/everyday.html Everyday GIT With 20 Commands Or So]
* [http://gitref.org/ Git Reference]
* [http://progit.org/book/ Pro Git book]
* [http://eigenjoy.com/2008/05/15/git-from-the-bottom-up/ Git from the bottom up]

[[ja:管理者用Git]]
[[fr:Git_pour_administrateurs]]
[[es:Git para Administradores]]