Initial commit of repo_service

1 files changed, 130 insertions, 0 deletions

diff --git a/backend/repo_service.py b/backend/repo_service.py
new file mode 100644
index 0000000..dfd7c78
--- /dev/null
+++ b/backend/repo_service.py
@@ -0,0 +1,130 @@
+import subprocess
+import syslog
+import sys
+import re
+import time
+import os
+
+syslog.openlog('repo_service')
+
+repo_name_re = re.compile(r'^[a-z][a-z0-9_-]{2,}$')
+repo_desc_re = re.compile(r'^[\w\s]{5,}$')
+
+repo_dir = os.path.dirname(os.path.realpath(__file__))
+repo_dir = os.path.join(repo_dir, 'gitolite')
+repo_git = 'git@git.sublab.org:gitolite-admin.git'
+cgit_conf = '/etc/cgitrc.repo_service'
+
+class GitException(Exception):
+    pass
+
+class RepoExistsException(Exception):
+    pass
+
+def git_call(args, **kwargs):
+    try:
+        subprocess.check_call(args, **kwargs)
+    except subprocess.CalledProcessError as e:
+        syslog.syslog('%s failed.' % ' '.join(args[:1]))
+        raise GitException()
+
+def gitolite_append(repo_owner, repo_name, repo_desc):
+    if not os.path.isdir(repo_dir):
+        git_call(['git', 'clone', repo_git, repo_dir])
+    else:
+        git_call(['git', 'fetch', repo_git, 'master'], cwd=repo_dir)
+        git_call(['git', 'reset', '--hard', 'FETCH_HEAD'], cwd=repo_dir)
+
+    grep = subprocess.call(
+            ['grep', '-r' , '^\s*repo\s\s*%s\s*$' % repo_name, '.'],
+            cwd=os.path.join(repo_dir, 'conf'))
+    if grep != 1:
+        raise RepoExistsException
+
+    filename = os.path.join(repo_dir, 'conf', 'repo_service.conf')
+
+    repo_date = time.strftime('%a, %d %b %Y %T %z')
+    entry = '''
+    # Automatically created by repo_service
+    # at %(repo_date)s
+    # for %(repo_owner)s
+        repo     %(repo_name)s
+                 R    = daemon
+                 RW   = @members
+''' % locals()
+
+    try:
+        with open(filename, 'a') as gitolite_conf:
+            gitolite_conf.write(entry)
+    except EnvironmentError as e:
+        syslog.syslog('could not append to repo_service.conf: %s' % repr(e))
+        raise GitException
+
+    git_call(['git', 'add', filename], cwd=repo_dir)
+    git_call(['git', 'commit',
+            '--author=Repo Service <nobody@nowhere.ws>',
+            '--message=repo_service: create %s for %s' % (repo_name, repo_owner)],
+            cwd=repo_dir)
+    git_call(['git', 'push', repo_git, 'master:master'], cwd=repo_dir)
+
+def cgit_append(repo_owner, repo_name, repo_desc):
+    repo_date = time.strftime('%a, %d %b %Y %T %z')
+    cgit_entry = '''
+# Automatically created by repo_service
+# at %(repo_date)s
+# for %(repo_owner)s
+repo.url=%(repo_name)s
+repo.path=/var/lib/git/repositories/%(repo_name)s.git
+repo.desc=%(repo_desc)s
+repo.owner=sublab
+''' % locals()
+
+    with open(cgit_conf, 'a') as cgit_config:
+        cgit_config.write(cgit_entry)
+
+def create_repo(repo_owner, repo_name, repo_desc):
+    if repo_name_re.match(repo_name) is None:
+        syslog.syslog('Declined repo_name %s to %s' % (
+            repr(repo_name), repo_owner))
+        return 'ERROR_NAME'
+
+    if repo_desc_re.match(repo_desc) is None:
+        syslog.syslog('Declined repo_desc %s to %s' % (
+            repr(repo_desc), repo_owner))
+        return 'ERROR_DESC'
+
+    syslog.syslog('Handling create_repo for %s ' % (repo_owner) +
+            'repo_name=%s, repo_desc=%s' % (repo_name, repo_desc))
+
+    try:
+        gitolite_append(repo_owner, repo_name, repo_desc)
+    except RepoExistsException:
+        return 'ERROR_EXISTS'
+    except GitException:
+        syslog.syslog('gitolite_append failed')
+        return 'ERROR_GITOLITE'
+
+    try:
+        cgit_append(repo_owner, repo_name, repo_desc)
+    except EnvironmentError:
+        syslog.syslog('cgit_append failed')
+        return 'ERROR_CGIT'
+
+    syslog.syslog('created repo %s' % repo_name)
+    return 'SUCCESS'
+
+if __name__ == '__main__':
+    from SimpleXMLRPCServer import SimpleXMLRPCServer
+    import errno
+    import select
+
+    server = SimpleXMLRPCServer(("127.0.0.1", 8023))
+    server.register_function(create_repo)
+
+    while True:
+        try:
+            server.serve_forever()
+        except select.error as e:
+            if e.args[0] == errno.EINTR:
+                continue
+            raise