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extract: add some facility for extensible header parsing
authorPierre-Yves David <pierre-yves.david@fb.com>
Wed, 07 Oct 2015 01:20:49 -0700
changeset 26557 23f3f1cbd53b
parent 26556 2bef84fad19f
child 26558 fe52cd049f01
extract: add some facility for extensible header parsing We need a way for extension to extend the header we can parse. We start with a very simple mechanism that will be used in the next changeset.
mercurial/patch.py file | annotate | diff | comparison | revisions 
--- a/mercurial/patch.py	Tue Oct 06 02:16:24 2015 -0700
+++ b/mercurial/patch.py	Wed Oct 07 01:20:49 2015 -0700
@@ -151,6 +151,10 @@
     # if we are here, we have a very plain patch
     return remainder(cur)
 
+## Some facility for extensible patch parsing:
+# list of pairs ("header to match", "data key")
+patchheadermap = []
+
 def extract(ui, fileobj):
     '''extract patch from data read from fileobj.
 
@@ -238,7 +242,12 @@
                             data['nodeid'] = line[10:]
                         elif line.startswith("# Parent "):
                             parents.append(line[9:].lstrip())
-                        elif not line.startswith("# "):
+                        elif line.startswith("# "):
+                            for header, key in patchheadermap:
+                                prefix = '# %s ' % header
+                                if line.startswith(prefix):
+                                    data[key] = line[len(prefix):]
+                        else:
                             hgpatchheader = False
                     elif line == '---':
                         ignoretext = True
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