Mercurial > hg
view mercurial/pure/diffhelpers.py @ 22806:65ccc733d58e
getlogrevs: remove user of baseset.append
A `baseset` has multiple cached results and will get even more in the future.
Making it an object "populated once" like the other smartsets makes it both safer
and simpler. The append method will be removed at some point.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
---|---|
date | Tue, 07 Oct 2014 00:04:16 -0700 |
parents | 4f8067c94729 |
children | 80214358ac88 |
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# diffhelpers.py - pure Python implementation of diffhelpers.c # # Copyright 2009 Matt Mackall <mpm@selenic.com> and others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. def addlines(fp, hunk, lena, lenb, a, b): while True: todoa = lena - len(a) todob = lenb - len(b) num = max(todoa, todob) if num == 0: break for i in xrange(num): s = fp.readline() c = s[0] if s == "\\ No newline at end of file\n": fix_newline(hunk, a, b) continue if c == "\n": # Some patches may be missing the control char # on empty lines. Supply a leading space. s = " \n" hunk.append(s) if c == "+": b.append(s[1:]) elif c == "-": a.append(s) else: b.append(s[1:]) a.append(s) return 0 def fix_newline(hunk, a, b): l = hunk[-1] # tolerate CRLF in last line if l.endswith('\r\n'): hline = l[:-2] else: hline = l[:-1] c = hline[0] if c in " +": b[-1] = hline[1:] if c in " -": a[-1] = hline hunk[-1] = hline return 0 def testhunk(a, b, bstart): alen = len(a) blen = len(b) if alen > blen - bstart: return -1 for i in xrange(alen): if a[i][1:] != b[i + bstart]: return -1 return 0