[sysadmin-bin] Add the mirroring script for github.

[Andrea Veri <av src gnome org>]

commit cf6560352701bf5fd3423c31c9de9b5e282e65d9
Author: Andrea Veri <av gnome org>
Date:   Fri Jul 26 11:24:23 2013 +0200

    Add the mirroring script for github.

 git/post-receive-github |  163 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 163 insertions(+), 0 deletions(-)
---
diff --git a/git/post-receive-github b/git/post-receive-github
new file mode 100644
index 0000000..b53ac8c
--- /dev/null
+++ b/git/post-receive-github
@@ -0,0 +1,163 @@
+#!/usr/bin/python2.6
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
+"""
+Copyright (c) 2013 Alberto Ruiz <aruiz gnome org>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+  * Neither the name of Pioneers of the Inevitable, Songbird, nor the names
+    of its contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+import os
+import sys
+import requests
+import subprocess
+import shlex
+import configparser
+import xml.etree.ElementTree as et
+import smtplib
+from email.mime.text import MIMEText
+import tempfile
+import json
+
+ORGANIZATION="GNOME"
+name_maps = {"gtk+":       "gtk",
+             "libxml++":   "libxmlmm",
+             "libsigc++2": "libsigcpp2"}
+
+class GitHub:
+    def __init__ (self):
+        config = configparser.ConfigParser()
+        try:
+            config.read(os.path.expanduser('/etc/gitmirrorrc'))
+            self.user = config.get('Github', 'user')
+            self.pw   = config.get('Github', 'password')
+        except configparser.NoSectionError:
+            raise Exception ("~/.gitmirrorrc non existant or missing [Github] section with user and password 
keys")
+        except configparser.NoOptionError:
+            raise Exception ("~/.gitmirrorrc misses user or/and password keys in the [Github] section")
+
+    def check_if_repo_exists (self, name):
+        rq = requests.get('https://api.github.com/repos/'+ORGANIZATION+'/'+name,
+                          auth=(self.user, self.pw))
+        if rq.status_code != 200:
+            return False
+
+        return True
+
+    def create_github_repo (self, name, description, homepage):
+        if self.check_if_repo_exists (name):
+            return
+        payload = json.dumps({
+                             'name': self.normalize_name(name),
+                             'description': description,
+                             'homepage': homepage,
+                             'has_wiki': False,
+                             'has_issues': False
+                             })
+        rq = requests.post('https://api.github.com/orgs/'+ORGANIZATION+'/repos',
+                           auth=(self.user, self.pw),
+                           data=payload)
+        if rq.status_code == 200:
+            return
+
+        raise Exception("There was an error attempting to create the repo %s in github:\n\nStatus: 
%d\nText:\n%s" % (name, rq.status_code, rq.text))
+
+    def normalize_name (self, name):
+        if "+" in name:
+            raise Exception("%s has a '+' character in it which is unsupported by Github.\nYou have to add 
it to the exception maps in the post-update hook." % name)
+        if name in name_maps.keys():
+            return name_maps[name]
+
+        return name
+
+def get_repo_name ():
+    repo_name = os.getcwd ().split("/")[-1]
+    if repo_name == ".git":
+        repo_name = os.getcwd ().split("/")[-2]
+    elif repo_name.endswith(".git"):
+        repo_name = repo_name[0:-4]
+    return repo_name
+
+def get_repo_settings (name):
+    nss = {'doap': 'http://usefulinc.com/ns/doap#',
+           'rdf':  'http://www.w3.org/1999/02/22-rdf-syntax-ns#'}
+    doap_url = "https://git.gnome.org/browse/%s/plain/%s.doap"; % (name, name)
+
+    rq = requests.get(doap_url)
+    if rq != 200:
+        raise Exception ("Could not get doap: %s", doap_url)
+
+    prj = et.fromstring (rq.text)
+
+    resource = '{%s}resource' % nss['rdf']
+
+    repo = prj.find('doap:repository/doap:GitRepository/doap:location', nss)
+    name = prj.find ('doap:name', nss)
+    desc = prj.find('doap:shortdesc', nss)
+    homepage = prj.find('doap:homepage/[ rdf:resource]', nss)
+    category = prj.find('doap:category/[ rdf:resource]', nss)
+
+    repo = repo.get(resource)
+    name = name.text if name else repo.split('/')[-1]
+    descdesc = desc.text if desc else name
+    homepage = homepage.get(resource) if homepage else 'http://www.gnome.org/'
+    category = category.get(resource) if category else 'gnome'
+
+    return { "category":    category.encode('utf-8').decode('utf-8'),
+             "homepage":    homepage.encode('utf-8').decode('utf-8'),
+             "name":        name.encode('utf-8').decode('utf-8'),
+             "repository":  repo.encode('utf-8').decode('utf-8'),
+             "description": desc.encode('utf-8').decode('utf-8')}
+
+def main ():
+    gh = GitHub ()
+    repo_name = get_repo_name ()
+    github_name = normalize_name (repo_name)
+    if not gh.check_if_repo_exists(repo_name):
+        settings = get_repo_settings (repo_name)
+    try:
+        command = 'git push --mirror git github com:%s/%s' % (ORGANIZATION, github_name)
+        out = tempfile.NamedTemporaryFile (prefix="github",suffix="std")
+        err = tempfile.NamedTemporaryFile (prefix="github",suffix="err")
+        subprocess.check_call(shlex.split(command), stderr=err, stdout=out)
+        out.close()
+        err.close()
+    except subprocess.CalledProcessError:
+        out = open(out.name, "r")
+        err = open(err.name, "r")
+        raise Exception("Error trying to push branch %s\nSTDOUT:\n%s\nSTDERR\n%s" % (repo_name, out.read(), 
err.read()))
+
+if __name__ == "__main__":
+    try:
+        main ()
+    except Exception as e:
+        msg = MIMEText(str(e))
+        msg['Subject'] = "[GITHUB HOOK] ERROR trying to push %s" %  os.getcwd ()
+        msg['From']    = "noreply gnome org"
+        msg['To']      = "gnome-sysadmin gnome org"
+        msg['X-GNOME-SERVICE'] = "github-mirror"
+        server = smtplib.SMTP("localhost")
+        server.send_message (msg)
+        server.quit ()
+        raise e