Post commit hook at outbrain used for Continuous Deployment

post-commit

#!/bin/sh

# POST-COMMIT HOOK
#
# The post-commit hook is invoked after a commit.  Subversion runs
# this hook by invoking a program (script, executable, binary, etc.)
# named 'post-commit' (for which this file is a template) with the 
# following ordered arguments:
#
#   [1] REPOS-PATH   (the path to this repository)
#   [2] REV          (the number of the revision just committed)
#
# The default working directory for the invocation is undefined, so
# the program should set one explicitly if it cares.
REPOS="$1"
REV="$2"

# invoke a build on teamc
/usr/bin/python /outbrain/svn/repos/hooks/post-commit-trigger-build-deploy.py "$REPOS" "$REV" || exit 1

post-commit-trigger-build-deploy.py

#!/usr/bin/env python
#
# reviewboard-post-commit-hook
# This script should be invoked from the subversion post-commit hook like this:
#
# REPOS="$1"
# REV="$2"
# /usr/bin/python /some/path/reviewboard-post-commit-hook.py "$REPOS" "$REV" "$AUTHOR" || exit 1
#


import sys
import re
import svn.fs
import svn.core
import svn.repos
import urllib


# If true, runs post-review in debug mode and outputs its diff
DEBUG = True
TEAM_C_USERNAME = "xxx"
TEAM_C_PASSWORD = "xxx"
TEAM_C_HOSTNAME_PORT = "ci.outbrain.com"
TEAM_C_API_ENDPOINT = "httpAuth/action.html"
TEAM_C_URL = "http://%s:%s@%s/%s" % (TEAM_C_USERNAME, TEAM_C_PASSWORD, TEAM_C_HOSTNAME_PORT, TEAM_C_API_ENDPOINT)

def main():
  if len(sys.argv) != 3:
    sys.stderr.write('Usage: %s <repos> <rev>\n' % sys.argv[0])
    sys.exit(1)

  repos = sys.argv[1]
  rev = sys.argv[2]

  # verify that rev parameter is an int
  try:
    int(rev)
  except ValueError:
    sys.stderr.write("Parameter <rev> must be an int, was given %s\n" % rev)
    sys.exit(1)

  # get the svn file system object
  fs_ptr = svn.repos.svn_repos_fs(svn.repos.svn_repos_open(svn.core.svn_path_canonicalize(repos)))

  # get the log message
  log = svn.fs.svn_fs_revision_prop(fs_ptr, int(rev), svn.core.SVN_PROP_REVISION_LOG)
  # get the author
  author = svn.fs.svn_fs_revision_prop(fs_ptr, int(rev), svn.core.SVN_PROP_REVISION_AUTHOR)

  if DEBUG:
    print "log: " + log

  # error if log message is blank
  if len(log.strip()) < 1:
    sys.stderr.write("Log message is empty, no review request created\n")
    sys.exit(1)


  #
  # extract the list of deployed artifacts from #deploy:ImageServer,RecEngine
  #
  modules_list = re.findall('#deploy:([^ ]*)', log)
  if modules_list:
    modules = modules_list[0]
    tags = "none" # by default we relase to none
    tags_list = re.findall('#tags:([^ ]*)', log)
    to_list = re.findall('#to:([^ ]*)', log)
    if tags_list:
      tags = tags_list[0]
    elif to_list:
      tags = to_list[0]
    params = "add2Queue=bt3&system.name=ob.module&system.value=" + modules + "&system.name=ob.tags&system.value=" + tags + "&system.name=commitRevision&system.value=" + rev +"&system.name=committer&system.value=" + author + "&system.name=commitMessage&system.value=" + urllib.quote(log) +"&moveToTop=true"
    url = TEAM_C_URL + "?" + params
    fetch(url)

def fetch(url):
  """Fetches a url"""
  if DEBUG:
    print "sending: %s" % (url)
  f = urllib.urlopen(url)
  s = f.read()
  print "url request sent OK %s" % (url)

if __name__ == '__main__':
    main()