[sysadmin-bin] Get refs to push from local filesystem instead of remote APIs

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 18be18a101dfee1c1992c178fc29d29c52694c09
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Tue Oct 15 14:54:22 2019 +0200

    Get refs to push from local filesystem instead of remote APIs

 git/post-receive-mirror-github | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)
---
diff --git a/git/post-receive-mirror-github b/git/post-receive-mirror-github
index 5e6956e..030cd45 100755
--- a/git/post-receive-mirror-github
+++ b/git/post-receive-mirror-github
@@ -40,7 +40,7 @@ from email.mime.text import MIMEText
 import tempfile
 import json
 
-from git import get_project_head_name
+from git import get_project_head_name, get_project_branches
 
 ORGANIZATION="GNOME"
 ADDITIONAL_ORGANIZATIONS={"pitivi": ["pitivi"]}
@@ -147,6 +147,7 @@ def get_repo_settings(repo_name):
 
     # Get the repo's mainline branch name
     branch_name = get_project_head_name()
+    branches = get_project_branches()
 
     doap_url = 'https://gitlab.gnome.org/%s/%s/raw/%s/%s.doap' % 
(os.path.dirname(os.getcwd()).split('/')[-1], repo_name, branch_name, repo_name)
 
@@ -172,6 +173,7 @@ def get_repo_settings(repo_name):
         "name": repo_name.encode("utf-8").decode("utf-8"),
         "description": desc.encode("utf-8").decode("utf-8"),
         "default_branch": branch_name.encode("utf-8").decode("utf-8"),
+        "branches": branches,
     }
 
 
@@ -186,9 +188,11 @@ def main():
     settings = get_repo_settings(repo_name)
     repo_exists = gh.check_if_repo_exists(repo_name)
 
+    # Avoid master here as we will later push it under different name
+    refs = ["refs/heads/{}".format(branch) for branch in settings['branches'] if branch != "master"]
+
     if repo_exists:
         description, homepage, default_branch, branches = gh.fetch_github_repo(github_name)
-        refs = ["refs/heads/{}".format(branch) for branch in branches]
 
         if description != settings["description"]:
             gh.update_github_repo(github_name, 'description', settings["description"])
@@ -197,8 +201,7 @@ def main():
             gh.update_github_repo(github_name, 'homepage', settings["homepage"])
     else:
         gh.create_github_repo(settings["name"], settings["description"], settings["homepage"])
-        default_branch = ""
-        refs = ""
+        default_branch = settings["default_branch"]
 
     for organization in [gh.organization] + ADDITIONAL_ORGANIZATIONS.get(repo_name, []):
         try:
@@ -221,18 +224,18 @@ def main():
     # Drop master branch in separate loop as GitHub API disallows to drop the
     # default branch and also expects new default branch to exists
     for organization in [gh.organization] + ADDITIONAL_ORGANIZATIONS.get(repo_name, []):
-        try:
-            command = 'git push --force git github com:{}/{} :master'.format(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 repo %s/%s\nSTDOUT:\n%s\nSTDERR\n%s" % (organization, 
repo_name, out.read(), err.read()))
-
+        if 'master' in branches:
+            try:
+                command = 'git push --force git github com:{}/{} :master'.format(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 repo %s/%s\nSTDOUT:\n%s\nSTDERR\n%s" % (organization, 
repo_name, out.read(), err.read()))
 
 
 if __name__ == "__main__":