release

#!/usr/bin/env python
import contextlib
import json
import os
import sys
import urllib

ORG_AND_PROJECT = "1and1/bill-of-materials-maven-plugin"


class GithubApi(object):

    def __init__(self, org_and_project, milestone):
        self._base_url = "https://api.github.com/repos/%s" % org_and_project
        self._milestone = milestone
        self.milestone_info = None
        self._fetch_milestone_info()

    def retrieve_open_issues(self):
        milestone_ = "%s/issues?milestone=%s&state=open" % (self._base_url, self._milestone)
        with contextlib.closing(urllib.urlopen(milestone_)) as h:
            return json.load(h)

    def _fetch_milestone_info(self):
        milestones = "%s/milestones/%s" % (self._base_url, self._milestone)
        with contextlib.closing(urllib.urlopen(milestones)) as h:
            self.milestone_info = json.load(h)

    def has_open_issues(self):
        return self.milestone_info["open_issues"] > 0

if __name__ == "__main__":
    if os.environ.get("GPG_AGENT_INFO") is None:
        sys.exit("GPG_AGENT not started")
    if len(sys.argv) != 3:
        sys.exit("Usage: %s previousVersion milestone, e.g. %s 1.3.10 20" % (sys.argv[0], sys.argv[0]))
    previous_version = sys.argv[1]
    milestone = sys.argv[2]
    gh = GithubApi(ORG_AND_PROJECT, milestone)
    if gh.has_open_issues():
        open_issues = gh.retrieve_open_issues()
        sys.exit("Found open issues on github for milestone %s (title: %s):\n%s" % (
            milestone,
            gh.milestone_info["title"],
            "\n".join("#%(number)d %(title)s" % issue for issue in open_issues)
            )
        )
    release_version = gh.milestone_info["title"]
    cmd = """\
mvn \
-Darguments="-DpreviousVersion=%(previous_version)s -Dmilestone=%(milestone)s" \
-DreleaseVersion=%(release_version)s \
-DpreparationGoals="clean deploy changes:announcement-generate -DperformRelease=true" release:prepare
    """ % locals()
    raw_input("About to execute:\n%s\nHit enter to proceed, CTRL+D to cancel" % cmd)
    os.system(cmd)
    os.system("mvn release:clean")