Mercurial > hg

changeset 24119:a5a06c9c7407

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mdiff: add helper for making deltas which replace the full text of a revision This helper will be used initially for censor-aware delta generation. Deltas which replace the full contents of the base revision are guaranteed to apply correctly regardless of whether the delta recipient has censored the base. For background and broader design of the censorship feature, see: http://mercurial.selenic.com/wiki/CensorPlan
author Mike Edgar <adgar@google.com>
date Wed, 21 Jan 2015 16:35:09 -0500
parents 76f6ae06ddf5
children a450e0a2ba0a
files mercurial/mdiff.py
diffstat 1 files changed, 3 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/mdiff.py	Fri Jan 23 17:01:39 2015 -0500
+++ b/mercurial/mdiff.py	Wed Jan 21 16:35:09 2015 -0500
@@ -367,6 +367,9 @@
 def trivialdiffheader(length):
     return struct.pack(">lll", 0, 0, length)
 
+def replacediffheader(oldlen, newlen):
+    return struct.pack(">lll", 0, oldlen, newlen)
+
 patches = mpatch.patches
 patchedsize = mpatch.patchedsize
 textdiff = bdiff.bdiff