Mercurial > hg
annotate mercurial/pure/diffhelpers.py @ 30320:bff5ccbe5ead stable
vfs: ignore EPERM at os.utime, which avoids ambiguity at renaming (issue5418)
According to POSIX specification, just having group write access to a
file causes EPERM at invocation of os.utime() with an explicit time
information (e.g. working on the repository shared by group access
permission).
To ignore EPERM at renaming in such case, this patch makes
vfs.rename() use filestat.avoidambig() introduced by previous patch.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Sun, 13 Nov 2016 06:11:56 +0900 |
parents | 80214358ac88 |
children | f53b55b162f4 |
rev | line source |
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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 |
10263 | 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 |