Mercurial > hg > hg-git

changeset 877:b250e7b3ad71

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git_handler.load_map: avoid split and strip For a mapfile with 1.5 million entries, this speeds up load_map from 2.3 seconds to 1.8.
author Siddharth Agarwal <sid0@fb.com>
date Thu, 09 Apr 2015 20:14:33 -0700
parents 8c112b6d5e61
children be105c4dda7b
files hggit/git_handler.py
diffstat 1 files changed, 7 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/hggit/git_handler.py
+++ b/hggit/git_handler.py
@@ -173,7 +173,13 @@
         map_hg_real = {}
         if os.path.exists(self.repo.join(self.map_file)):
             for line in self.repo.opener(self.map_file):
-                gitsha, hgsha = line.strip().split(' ', 1)
+                # format is <40 hex digits> <40 hex digits>\n
+                if len(line) != 82:
+                    raise ValueError(
+                        _('corrupt mapfile: incorrect line length %d') %
+                        len(line))
+                gitsha = line[:40]
+                hgsha = line[41:81]
                 map_git_real[gitsha] = hgsha
                 map_hg_real[hgsha] = gitsha
         self._map_git_real = map_git_real