From e724c8e09f8d987d431db7d463624ee697e9e855 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sun, 15 Sep 2013 15:40:12 +0200
Subject: [PATCH] call git as subprocess instead of using the git python API

---
 build_system.py |  2 +-
 vcs.py          | 56 ++++++++++++++++++++++++++-----------------------
 2 files changed, 31 insertions(+), 27 deletions(-)

diff --git a/build_system.py b/build_system.py
index 63a236e..75b5537 100644
--- a/build_system.py
+++ b/build_system.py
@@ -99,7 +99,7 @@ try:
 				'name': self.config['debName'],
 				'email': self.config['debEMail'],
 				'parallelJobs': self.config['jobs'],
-				'version': versionName,
+				'version': versionName + self.config.get('versionSuffix', ''),
 				'waitAfterConfig': waitAfterConfig,
 			}
 			# copy some more optional configuration
diff --git a/vcs.py b/vcs.py
index 89a4920..8d8d836 100644
--- a/vcs.py
+++ b/vcs.py
@@ -15,7 +15,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
-import os, git, subprocess, re
+import os, subprocess, re
 
 '''A VCS must have an "update" method with an optional "mode" parameter taking one of the three values below,
    a "version" method returning a version name (or None),
@@ -30,6 +30,18 @@ def natural_sort_key(val):
 def get_non_digit_prefix(val):
 	return re.match('[^0-9]*', val).group(0)
 
+class GitCommand:
+	def __getattr__(self, name):
+		def call(*args):
+			cmd = ["git", name.replace('_', '-')] + list(args)
+			p = subprocess.Popen(cmd, stdout=subprocess.PIPE) # TODO use with
+			(stdout, stderr) = p.communicate()
+			if p.returncode != 0:
+				raise Exception("Running %s returned non-zero exit code %d" % (str(cmd), p.returncode))
+			return filter(len, stdout.split('\n')) # return list of non-empty lines
+		return call
+git = GitCommand()
+
 # Fetch updates from git
 class Git:
 	def __init__(self, folder, config):
@@ -37,10 +49,6 @@ class Git:
 		self.url = config['url']
 		self.commit = config['version']
 
-	class _ProgressPrinter(git.remote.RemoteProgress):
-		def update(self, op_code, cur_count, max_count=None, message=''):
-			print self._cur_line+(" "*30)+"\r",
-
 	def update(self, mode = MODE_REBASE):
 		isBranch = (self.commit.startswith('origin/'))
 		if isBranch:
@@ -50,36 +58,33 @@ class Git:
 		# get us a git repository, and the "origin" remote
 		if os.path.exists(self.folder):
 			# load existing repo
-			repo = git.Repo(self.folder)
-			origin = repo.remotes.origin
-			origin.config_writer.set_value("url", self.url) # make sure we use the current URL
+			os.chdir(self.folder)
+			git.remote("set-url", "origin", self.url) # make sure we use the current URL
 		else:
 			# create a new one
 			os.makedirs(self.folder)
-			repo = git.Repo.init(self.folder)
-			origin = repo.create_remote('origin', self.url)
-		origin.fetch(progress=Git._ProgressPrinter()) # download new data
-		print " "*80+"\r", # clean the line we are in
+			os.chdir(self.folder)
+			git.init()
+			git.remote("add", "origin", self.url)
+		git.fetch("origin")
 		if mode == MODE_FETCH:
 			return
 		# create/find correct branch
-		if branchname in repo.heads:
-			branch = repo.heads[branchname]
-		else:
-			branch = repo.create_head(branchname, self.commit)
-			if isBranch: # track remote branch
-				branch.set_tracking_branch(origin.refs[branchname])
+		if not git.branch("--list", branchname): # the branch does not yet exit
+			git.branch(branchname, self.commit)
+			if isBranch: # make sure we track remote branch
+				git.branch("-u", self.commit, branchname)
 		# update it to the latest remote commit
-		branch.checkout()
+		git.checkout(branchname)
 		if mode == MODE_RESET:
-			repo.head.reset(self.commit, working_tree=True)
+			git.reset("--hard", self.commit)
 		else:
-			repo.git.rebase(self.commit)
+			git.rebase(self.commit)
 		# update submodules
-		repo.git.submodule("update", "--init", "--recursive", "--rebase")
+		git.submodule("update", "--init", "--recursive", "--rebase")
 		# done
 		print "...done",
-		if repo.head.reference.commit != repo.commit(self.commit):
+		if git.rev_parse("HEAD")[0] != git.rev_parse(self.commit)[0]:
 			print "(keeping local patches around)",
 		print
 
@@ -90,10 +95,9 @@ class Git:
 
 	def checkVersions(self):
 		self.update(mode = MODE_FETCH)
-		repo = git.Repo(self.folder)
-		currentVersion = repo.git.describe()
+		currentVersion = git.describe()[0]
 		# get sorted list of tag names with the same non-digit prefix and higher version number
-		tags = map(str, repo.tags)
+		tags = git.tag()
 		tags = filter(lambda t: get_non_digit_prefix(t) == get_non_digit_prefix(currentVersion) and natural_sort_key(t) > natural_sort_key(currentVersion), tags)
 		if not tags: return
 		tags.sort(key = natural_sort_key)
-- 
2.30.2