[gentoo-portage-dev] [PATCH] svn sync: fix the module

["Michał Górny" <mgorny@gentoo.org>]

Fix the svn sync module since it doesn't work at all right now. More
specifically:

1. add exists() method that uses 'svn info' to determine whether
the repository was checked out already.

2. Fix the initial clone to use valid svn commands. Do not remove
the just-created directory to avoid permission issues, just run checkout
on top of it.

3. Fix the sync method to run update unconditionally to whether the URI
starts with svn:// or not. In fact, remove the whole check since it
doesn't serve any purpose.
---
 pym/portage/sync/modules/svn/svn.py | 54 ++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 25 deletions(-)

diff --git a/pym/portage/sync/modules/svn/svn.py b/pym/portage/sync/modules/svn/svn.py
index 73c4b83..3ab15f5 100644
--- a/pym/portage/sync/modules/svn/svn.py
+++ b/pym/portage/sync/modules/svn/svn.py
@@ -24,23 +24,31 @@ class SVNSync(SyncBase):
 		SyncBase.__init__(self, "svn", "dev-vcs/subversion")
 
 
+	def exists(self, **kwargs):
+		'''Tests whether the repo actually exists'''
+		if kwargs:
+			self._kwargs(kwargs)
+		elif not self.repo:
+			return False
+
+		if not os.path.exists(self.repo.location):
+			return False
+		exitcode = portage.process.spawn_bash("cd %s ; svn info &>/dev/null" %\
+			(portage._shell_quote(self.repo.location),),
+			**portage._native_kwargs(self.spawn_kwargs))
+		if exitcode != 0:
+			return False
+		return True
+
+
 	def new(self, **kwargs):
 		if kwargs:
 			self._kwargs(kwargs)
 		#initial checkout
-		try:
-			os.rmdir(self.repo.location)
-		except OSError as e:
-			if e.errno != errno.ENOENT:
-				msg = "!!! existing '%s' directory; exiting." % self.repo.location
-				self.logger(self.xterm_titles, msg)
-				writemsg_level(msg + "\n", noiselevel=-1, level=logging.ERROR)
-				return (1, False)
-			del e
 		svn_root = self.repo.sync_uri
-		exitcode =  portage.process.spawn_bash(
-			"cd %s; exec svn %s" %
-			(portage._shell_quote(os.path.dirname(self.repo.location)),
+		exitcode = portage.process.spawn_bash(
+			"cd %s; exec svn co %s ." %
+			(portage._shell_quote(self.repo.location),
 			portage._shell_quote(svn_root)),
 			**portage._native_kwargs(self.spawn_kwargs))
 		if exitcode != os.EX_OK:
@@ -63,19 +71,15 @@ class SVNSync(SyncBase):
 		if exitcode != os.EX_OK:
 			return (exitcode, False)
 
-		svn_root = self.repo.sync_uri
-
-		if svn_root.startswith("svn://"):
-			svn_root = svn_root[6:]
-			#svn update
-			exitcode = portage.process.spawn_bash(
-				"cd %s; exec svn update" % \
-				(portage._shell_quote(self.repo.location),),
-				**portage._native_kwargs(self.spawn_kwargs))
-			if exitcode != os.EX_OK:
-				msg = "!!! svn update error; exiting."
-				self.logger(self.xterm_titles, msg)
-				writemsg_level(msg + "\n", noiselevel=-1, level=logging.ERROR)
+		#svn update
+		exitcode = portage.process.spawn_bash(
+			"cd %s; exec svn update" % \
+			(portage._shell_quote(self.repo.location),),
+			**portage._native_kwargs(self.spawn_kwargs))
+		if exitcode != os.EX_OK:
+			msg = "!!! svn update error; exiting."
+			self.logger(self.xterm_titles, msg)
+			writemsg_level(msg + "\n", noiselevel=-1, level=logging.ERROR)
 		return (exitcode, False)
 
 
-- 
2.2.1