django-synchroniser automagically synchronises Bitbucket Mecurial base projects to GitHub (Git based) projects
# Synchronise #
This is the synchronise module.
### Overview ###
This module allows you to synchronise BitBucket Mercurial to GitHub Git projects.
### How do you make the synchonisation work? ###
There is an example directory. Install it and follow these rules to synchronise your project called <project> on Bitbucket with user called <user> to Github:
Make sure your Bitbucket repository is Mercurial based. Your project can be private or public.
In the Settings of your project (click the cogwheel), select the Hooks section. Select the ‘POST’ hook and point it to the URL you installed this module in. The URL needs to be public. If that would be a problem, there is already a synchroniser installed at http://api.elevenbits.com/synchronise/. You can use that if you want to.
Make sure you have a related GitHub project which will host a copy of the Bitbucket repository. If the GitHub project has a different user or a different name, you should adapt the ‘POST’ hook, e.g. http://api.elevenbits.com/synchronise/?user=foo&project=fizz.
In the GitHub select this <project> and visit its Settings page. Add ‘Synchroniser’ as Collaborator.
From now on, when you do a push to your Bitbucket project, the module will be informed by the POST and push it to GitHub as the Synchroniser collaborator. This will immediately make sure the GitHub project will be synchronised with the Butbucket one.
### How does it work? ###
Each time a Mercurial push arrives at Bitbucket, it will send a request to the URL specified in the POST hook of the pushed project.
The JSON content of the POST is clearly explained [at the Bitbucket website](https://confluence.atlassian.com/display/BITBUCKET/POST+hook+management).
The ‘/synchronise/’ link will parse the JSON and see if it is a valid POST.
When it is a valid POST it will clone the Mercurial repository specified in it using [hgapi](https://bitbucket.org/haard/hgapi). Then it will make sure that the [hggit](https://bitbucket.org/durin42/hg-git) extension is enabled and an extra github path is added. After bookmarking the tip as master (via hg bookmark master), it will push the repo to GitHub (via hg push github). Since Synchroniser is a collaborator the push will succeed.
See the code for more information.
### Error codes ###
Successful synchonisation request will return 200 with an informational message. The synchroniser will return 400 when a request was unsuccessfully handled.
Some examples when a 400 would be returned:
When invalid request arrives (e.g. no JSON payload)
The github project specified in the request does not exist
The user specified in the request the user does not exist
No Synchroniser collaborator is specified in the GitHub project
A 500 will be returned when something bad happened at the server side, and is not caused by an invalid request. For example the hggit plugin is not available or hgapi misbehaved.
### Can I create my own Synchroniser? ###
Yes you can! All the code is available here. When you have a server available, you can point the POST hook to your own machine.
Here is a first draft of the installation process using nginx and uwsgi:
Make sure nginx and uwsgi are installed.
Add a new site configuration in /etc/nginx.
Add a new uwsgi configuration in /etc/uwsgi.
Restart both nginx and uwsgi.
Enjoy your synchronisation server!
#### Notes ####
This is a Django project, and uses only Python based dependencies: hgapi and hggit.
The database is not really needed. The default sqlite3 will do for now.
To install UWSGI:
Do not install using your distribution methods. So, do not use apt-get, yum or pakman.
Please download the latest uwsgi: http://projects.unbit.it/downloads/uwsgi-2.0.6.tar.gz
Build plugins for it: python2.7 uwsgiconfig.py –plugin plugins/python core python27 python3.4 uwsgiconfig.py –plugin plugins/python core python34
Create two ini files, one for Python 2.7 (two.ini), another one for Python 3 (three.ini):
##### two.ini #####
` [uwsgi] plugin-dir = /home/jw/plugins plugin = python27 chdir = /home/jw/apps/two master = true threads = 2 processes = 4 http-socket = :9090 wsgi-file = foobar.py `
##### three.ini #####
` [uwsgi] plugin-dir = /home/jw/plugins plugin = python34 chdir = /home/jw/apps/three master = true threads = 2 processes = 4 http-socket = :8080 wsgi-file = fizzbuzz.py `
Start the uwsgi emperor with uwsgi –emperor <path where the ini files live> and see the system handle to different python releases!
### Contribution guidelines ###
Please write tests for me?
Do not hesitate to do a code review.
When writing code, do follow [PEP8](http://legacy.python.org/dev/peps/pep-0008/). But use ‘ before “; so print(‘Hello there’) and foo = ‘“Hej!”, said Fritz’ are valid, while print(“Foobar”) is not.
### Who do I talk to? ###
Mail email@example.com for info, help, support,…
Leave requests and bug reports on the issues page
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