Mercurial > hg
annotate mercurial/pure/diffhelpers.py @ 24071:184a2f6f40da
bundle2.unbundle20: add compressed() method
Bundlerepo uses the compressed() method to determine whether it should write
an uncompressed temporary file. Since we don't support compressed bundle2 files
at the moment, make this method return true.
author | Eric Sumner <ericsumner@fb.com> |
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date | Thu, 05 Feb 2015 15:56:50 -0800 |
parents | 4f8067c94729 |
children | 80214358ac88 |
rev | line source |
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pure Python implementation of diffhelpers.c
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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 def addlines(fp, hunk, lena, lenb, a, b): |
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9 while True: |
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10 todoa = lena - len(a) |
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11 todob = lenb - len(b) |
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12 num = max(todoa, todob) |
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13 if num == 0: |
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14 break |
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15 for i in xrange(num): |
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16 s = fp.readline() |
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17 c = s[0] |
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18 if s == "\\ No newline at end of file\n": |
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19 fix_newline(hunk, a, b) |
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20 continue |
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21 if c == "\n": |
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22 # Some patches may be missing the control char |
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23 # on empty lines. Supply a leading space. |
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24 s = " \n" |
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25 hunk.append(s) |
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26 if c == "+": |
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27 b.append(s[1:]) |
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28 elif c == "-": |
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29 a.append(s) |
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30 else: |
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31 b.append(s[1:]) |
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32 a.append(s) |
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33 return 0 |
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34 |
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35 def fix_newline(hunk, a, b): |
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36 l = hunk[-1] |
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37 # tolerate CRLF in last line |
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38 if l.endswith('\r\n'): |
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39 hline = l[:-2] |
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40 else: |
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41 hline = l[:-1] |
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42 c = hline[0] |
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43 |
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44 if c in " +": |
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45 b[-1] = hline[1:] |
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46 if c in " -": |
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47 a[-1] = hline |
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48 hunk[-1] = hline |
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49 return 0 |
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50 |
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51 |
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52 def testhunk(a, b, bstart): |
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53 alen = len(a) |
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54 blen = len(b) |
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55 if alen > blen - bstart: |
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56 return -1 |
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57 for i in xrange(alen): |
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58 if a[i][1:] != b[i + bstart]: |
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59 return -1 |
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60 return 0 |