[projects/git-slug: 1/9] check_remote(): Add support to packed refs database.

[glen]

commit fac30722a98a4d6300822fd3f790ce1fa48e7d83
Author: Arkadiusz Miśkiewicz <arekm at maven.pl>
Date:   Sun Nov 23 00:15:10 2014 +0100

    check_remote(): Add support to packed refs database.
    
    check_remote() did not handle git packed refs database. That made
    fetch_packages() to always fetch packages even if we already had
    them fetched.
    
    Supporting packed refs database fixes this problem.

 git_slug/gitrepo.py | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
---
diff --git a/git_slug/gitrepo.py b/git_slug/gitrepo.py
index 5234deb..d9f88ee 100644
--- a/git_slug/gitrepo.py
+++ b/git_slug/gitrepo.py
@@ -82,12 +82,21 @@ class GitRepo:
             'refs/notes/*:refs/notes/*'])
 
     def check_remote(self, ref, remote=REMOTE_NAME):
+        localref = EMPTYSHA1
         ref = ref.replace(REFFILE, os.path.join('remotes', remote))
         try:
             with open(os.path.join(self.gdir, ref), 'r') as f:
                 localref = f.readline().strip()
         except IOError:
-            localref = EMPTYSHA1
+            try:
+                with open(os.path.join(self.gdir, 'packed-refs')) as f:
+                    for line in f:
+                        line_data = line.split()
+                        if len(line_data) == 2 and line_data[1] == ref:
+                            localref = line_data[0].strip()
+                            break
+            except IOError:
+                pass
         return localref
 
     def showfile(self, filename, ref="/".join([REMOTE_NAME, "master"])):
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/projects/git-slug.git/commitdiff/d9fdf7d60e5aea39f9ac7065a09a645261fc712b