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annotate mercurial/pure/diffhelpers.py @ 33827:dedab036215d

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wireproto: use new peer interface The wirepeer class provides concrete implementations of peer interface methods for calling wire protocol commands. It makes sense for this class to inherit from the peer abstract base class. So we change that. Since httppeer and sshpeer have already been converted to the new interface, peerrepository is no longer adding any value. So it has been removed. httppeer and sshpeer have been updated to reflect the loss of peerrepository and the inheritance of the abstract base class in wirepeer. The code changes in wirepeer are reordering of methods to group by interface. Some Python code in tests was updated to reflect changed APIs. .. api:: peer.peerrepository has been removed. Use repository.peer abstract base class to represent a peer repository. Differential Revision: https://phab.mercurial-scm.org/D338
author Gregory Szorc <gregory.szorc@gmail.com>
date Thu, 10 Aug 2017 20:58:28 -0700
parents 80214358ac88
children f53b55b162f4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # diffhelpers.py - pure Python implementation of diffhelpers.c
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2 #
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3 # Copyright 2009 Matt Mackall <mpm@selenic.com> and others
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 def addlines(fp, hunk, lena, lenb, a, b):
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11 while True:
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12 todoa = lena - len(a)
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13 todob = lenb - len(b)
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14 num = max(todoa, todob)
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15 if num == 0:
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16 break
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17 for i in xrange(num):
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18 s = fp.readline()
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19 c = s[0]
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20 if s == "\\ No newline at end of file\n":
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21 fix_newline(hunk, a, b)
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22 continue
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23 if c == "\n":
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24 # Some patches may be missing the control char
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25 # on empty lines. Supply a leading space.
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26 s = " \n"
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27 hunk.append(s)
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28 if c == "+":
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29 b.append(s[1:])
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30 elif c == "-":
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31 a.append(s)
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32 else:
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33 b.append(s[1:])
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34 a.append(s)
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35 return 0
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36
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37 def fix_newline(hunk, a, b):
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38 l = hunk[-1]
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39 # tolerate CRLF in last line
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40 if l.endswith('\r\n'):
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41 hline = l[:-2]
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42 else:
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43 hline = l[:-1]
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44 c = hline[0]
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45
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46 if c in " +":
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47 b[-1] = hline[1:]
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48 if c in " -":
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49 a[-1] = hline
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50 hunk[-1] = hline
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51 return 0
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52
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53
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54 def testhunk(a, b, bstart):
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55 alen = len(a)
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56 blen = len(b)
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57 if alen > blen - bstart:
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58 return -1
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59 for i in xrange(alen):
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60 if a[i][1:] != b[i + bstart]:
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61 return -1
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62 return 0