Mercurial > hg
annotate mercurial/mdiff.py @ 31337:ec7831675867
win32text: directly use repo.vfs.join
The 'repo.join' method is about to be deprecated.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Wed, 08 Mar 2017 16:52:57 -0800 |
parents | 92714858dd3e |
children | a7acda2de4b8 |
rev | line source |
---|---|
239
75840796e8e2
mdiff.py: kill #! line, add copyright notice
mpm@selenic.com
parents:
184
diff
changeset
|
1 # mdiff.py - diff and patch routines for mercurial |
75840796e8e2
mdiff.py: kill #! line, add copyright notice
mpm@selenic.com
parents:
184
diff
changeset
|
2 # |
2859 | 3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
239
75840796e8e2
mdiff.py: kill #! line, add copyright notice
mpm@selenic.com
parents:
184
diff
changeset
|
4 # |
8225
46293a0c7e9f
updated license to be explicit about GPL version 2
Martin Geisler <mg@lazybytes.net>
parents:
7436
diff
changeset
|
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. |
239
75840796e8e2
mdiff.py: kill #! line, add copyright notice
mpm@selenic.com
parents:
184
diff
changeset
|
7 |
27484
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
8 from __future__ import absolute_import |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
9 |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
10 import re |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
11 import struct |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
12 import zlib |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
13 |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
14 from .i18n import _ |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
15 from . import ( |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
16 base85, |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
17 bdiff, |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
18 error, |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
19 mpatch, |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
20 util, |
0d7635dca691
mdiff: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26587
diff
changeset
|
21 ) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
22 |
2251
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
23 def splitnewlines(text): |
2248
b914f0557832
fix diffs containing embedded "\r".
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2078
diff
changeset
|
24 '''like str.splitlines, but only split on newlines.''' |
2251
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
25 lines = [l + '\n' for l in text.split('\n')] |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
26 if lines: |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
27 if lines[-1] == '\n': |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
28 lines.pop() |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
29 else: |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
30 lines[-1] = lines[-1][:-1] |
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
31 return lines |
2248
b914f0557832
fix diffs containing embedded "\r".
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2078
diff
changeset
|
32 |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
33 class diffopts(object): |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
34 '''context is the number of context lines |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
35 text treats all files as text |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
36 showfunc enables diff -p output |
2907 | 37 git enables the git extended patch format |
3199
096f1c73cdc3
Add -D/--nodates options to hg diff/export that removes dates from diff headers
Stephen Darnell <stephen@darnell.plus.com>
parents:
3026
diff
changeset
|
38 nodates removes dates from diff headers |
23293
b89856abf4e2
mdiff.diffopts: add doc comment for nobinary
Siddharth Agarwal <sid0@fb.com>
parents:
21790
diff
changeset
|
39 nobinary ignores binary files |
23294
ec8c73b02e2e
mdiff.diffopts: add a new noprefix option
Siddharth Agarwal <sid0@fb.com>
parents:
23293
diff
changeset
|
40 noprefix disables the 'a/' and 'b/' prefixes (ignored in plain mode) |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
41 ignorews ignores all whitespace changes in the diff |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
42 ignorewsamount ignores changes in the amount of whitespace |
10189
e451e599fbcf
patch: support diff data loss detection and upgrade
Patrick Mezard <pmezard@gmail.com>
parents:
10185
diff
changeset
|
43 ignoreblanklines ignores changes whose lines are all blank |
e451e599fbcf
patch: support diff data loss detection and upgrade
Patrick Mezard <pmezard@gmail.com>
parents:
10185
diff
changeset
|
44 upgrade generates git diffs to avoid data loss |
e451e599fbcf
patch: support diff data loss detection and upgrade
Patrick Mezard <pmezard@gmail.com>
parents:
10185
diff
changeset
|
45 ''' |
396
8f8bb77d560e
Show revisions in diffs like CVS, based on a patch from Goffredo Baroncelli.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
361
diff
changeset
|
46 |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
47 defaults = { |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
48 'context': 3, |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
49 'text': False, |
5863
3d1f9dcecdea
diff: don't show function name by default
Matt Mackall <mpm@selenic.com>
parents:
5482
diff
changeset
|
50 'showfunc': False, |
2907 | 51 'git': False, |
3199
096f1c73cdc3
Add -D/--nodates options to hg diff/export that removes dates from diff headers
Stephen Darnell <stephen@darnell.plus.com>
parents:
3026
diff
changeset
|
52 'nodates': False, |
21790
3fbef7ac26f0
diff: add nobinary config to suppress git-style binary diffs
Stephen Lee <sphen.lee@gmail.com>
parents:
20034
diff
changeset
|
53 'nobinary': False, |
23294
ec8c73b02e2e
mdiff.diffopts: add a new noprefix option
Siddharth Agarwal <sid0@fb.com>
parents:
23293
diff
changeset
|
54 'noprefix': False, |
30788
d1901c4c8ec0
patch: add config knob for displaying the index header
Sean Farley <sean@farley.io>
parents:
30717
diff
changeset
|
55 'index': 0, |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
56 'ignorews': False, |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
57 'ignorewsamount': False, |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
58 'ignoreblanklines': False, |
10189
e451e599fbcf
patch: support diff data loss detection and upgrade
Patrick Mezard <pmezard@gmail.com>
parents:
10185
diff
changeset
|
59 'upgrade': False, |
30806
e2796f193f06
patch: add similarity config knob in experimental section
Sean Farley <sean@farley.io>
parents:
30788
diff
changeset
|
60 'showsimilarity': False, |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
61 } |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
62 |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
63 def __init__(self, **opts): |
29416
30789efb1e5e
mdiff: remove use of __slots__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27711
diff
changeset
|
64 for k in self.defaults.keys(): |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
65 v = opts.get(k) |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
66 if v is None: |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
67 v = self.defaults[k] |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
68 setattr(self, k, v) |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
69 |
6467
65029a3aafc2
Let --unified default to diff.unified (issue 1076)
Patrick Mezard <pmezard@gmail.com>
parents:
5863
diff
changeset
|
70 try: |
65029a3aafc2
Let --unified default to diff.unified (issue 1076)
Patrick Mezard <pmezard@gmail.com>
parents:
5863
diff
changeset
|
71 self.context = int(self.context) |
65029a3aafc2
Let --unified default to diff.unified (issue 1076)
Patrick Mezard <pmezard@gmail.com>
parents:
5863
diff
changeset
|
72 except ValueError: |
26587
56b2bcea2529
error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24119
diff
changeset
|
73 raise error.Abort(_('diff context lines count must be ' |
6467
65029a3aafc2
Let --unified default to diff.unified (issue 1076)
Patrick Mezard <pmezard@gmail.com>
parents:
5863
diff
changeset
|
74 'an integer, not %r') % self.context) |
65029a3aafc2
Let --unified default to diff.unified (issue 1076)
Patrick Mezard <pmezard@gmail.com>
parents:
5863
diff
changeset
|
75 |
10185
7637fe4f525d
mq: preserve --git flag when merging patches
Patrick Mezard <pmezard@gmail.com>
parents:
9827
diff
changeset
|
76 def copy(self, **kwargs): |
7637fe4f525d
mq: preserve --git flag when merging patches
Patrick Mezard <pmezard@gmail.com>
parents:
9827
diff
changeset
|
77 opts = dict((k, getattr(self, k)) for k in self.defaults) |
7637fe4f525d
mq: preserve --git flag when merging patches
Patrick Mezard <pmezard@gmail.com>
parents:
9827
diff
changeset
|
78 opts.update(kwargs) |
7637fe4f525d
mq: preserve --git flag when merging patches
Patrick Mezard <pmezard@gmail.com>
parents:
9827
diff
changeset
|
79 return diffopts(**opts) |
7637fe4f525d
mq: preserve --git flag when merging patches
Patrick Mezard <pmezard@gmail.com>
parents:
9827
diff
changeset
|
80 |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
81 defaultopts = diffopts() |
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
82 |
9827
4fe9ca519637
mdiff: fix diff -b/B/w on mixed whitespace hunks (issue127)
Patrick Mezard <pmezard@gmail.com>
parents:
8632
diff
changeset
|
83 def wsclean(opts, text, blank=True): |
4878
372d93f03d3a
diff: correctly handle combinations of whitespace options
Matt Mackall <mpm@selenic.com>
parents:
4679
diff
changeset
|
84 if opts.ignorews: |
15530
eeac5e179243
mdiff: replace wscleanup() regexps with C loops
Patrick Mezard <pmezard@gmail.com>
parents:
15529
diff
changeset
|
85 text = bdiff.fixws(text, 1) |
4878
372d93f03d3a
diff: correctly handle combinations of whitespace options
Matt Mackall <mpm@selenic.com>
parents:
4679
diff
changeset
|
86 elif opts.ignorewsamount: |
15530
eeac5e179243
mdiff: replace wscleanup() regexps with C loops
Patrick Mezard <pmezard@gmail.com>
parents:
15529
diff
changeset
|
87 text = bdiff.fixws(text, 0) |
9827
4fe9ca519637
mdiff: fix diff -b/B/w on mixed whitespace hunks (issue127)
Patrick Mezard <pmezard@gmail.com>
parents:
8632
diff
changeset
|
88 if blank and opts.ignoreblanklines: |
15509
3774e1453ef4
diff: --ignore-blank-lines was too enthusiastic
Patrick Mezard <pmezard@gmail.com>
parents:
15462
diff
changeset
|
89 text = re.sub('\n+', '\n', text).strip('\n') |
4878
372d93f03d3a
diff: correctly handle combinations of whitespace options
Matt Mackall <mpm@selenic.com>
parents:
4679
diff
changeset
|
90 return text |
372d93f03d3a
diff: correctly handle combinations of whitespace options
Matt Mackall <mpm@selenic.com>
parents:
4679
diff
changeset
|
91 |
15528
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
92 def splitblock(base1, lines1, base2, lines2, opts): |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
93 # The input lines matches except for interwoven blank lines. We |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
94 # transform it into a sequence of matching blocks and blank blocks. |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
95 lines1 = [(wsclean(opts, l) and 1 or 0) for l in lines1] |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
96 lines2 = [(wsclean(opts, l) and 1 or 0) for l in lines2] |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
97 s1, e1 = 0, len(lines1) |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
98 s2, e2 = 0, len(lines2) |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
99 while s1 < e1 or s2 < e2: |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
100 i1, i2, btype = s1, s2, '=' |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
101 if (i1 >= e1 or lines1[i1] == 0 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
102 or i2 >= e2 or lines2[i2] == 0): |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
103 # Consume the block of blank lines |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
104 btype = '~' |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
105 while i1 < e1 and lines1[i1] == 0: |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
106 i1 += 1 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
107 while i2 < e2 and lines2[i2] == 0: |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
108 i2 += 1 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
109 else: |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
110 # Consume the matching lines |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
111 while i1 < e1 and lines1[i1] == 1 and lines2[i2] == 1: |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
112 i1 += 1 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
113 i2 += 1 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
114 yield [base1 + s1, base1 + i1, base2 + s2, base2 + i2], btype |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
115 s1 = i1 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
116 s2 = i2 |
a84698badf0b
annotate: support diff whitespace filtering flags (issue3030)
Patrick Mezard <pmezard@gmail.com>
parents:
15526
diff
changeset
|
117 |
30717
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
118 def blocksinrange(blocks, rangeb): |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
119 """filter `blocks` like (a1, a2, b1, b2) from items outside line range |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
120 `rangeb` from ``(b1, b2)`` point of view. |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
121 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
122 Return `filteredblocks, rangea` where: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
123 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
124 * `filteredblocks` is list of ``block = (a1, a2, b1, b2), stype`` items of |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
125 `blocks` that are inside `rangeb` from ``(b1, b2)`` point of view; a |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
126 block ``(b1, b2)`` being inside `rangeb` if |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
127 ``rangeb[0] < b2 and b1 < rangeb[1]``; |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
128 * `rangea` is the line range w.r.t. to ``(a1, a2)`` parts of `blocks`. |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
129 """ |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
130 lbb, ubb = rangeb |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
131 lba, uba = None, None |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
132 filteredblocks = [] |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
133 for block in blocks: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
134 (a1, a2, b1, b2), stype = block |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
135 if lbb >= b1 and ubb <= b2 and stype == '=': |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
136 # rangeb is within a single "=" hunk, restrict back linerange1 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
137 # by offsetting rangeb |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
138 lba = lbb - b1 + a1 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
139 uba = ubb - b1 + a1 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
140 else: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
141 if b1 <= lbb < b2: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
142 if stype == '=': |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
143 lba = a2 - (b2 - lbb) |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
144 else: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
145 lba = a1 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
146 if b1 < ubb <= b2: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
147 if stype == '=': |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
148 uba = a1 + (ubb - b1) |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
149 else: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
150 uba = a2 |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
151 if lbb < b2 and b1 < ubb: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
152 filteredblocks.append(block) |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
153 if lba is None or uba is None or uba < lba: |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
154 raise error.Abort(_('line range exceeds file size')) |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
155 return filteredblocks, (lba, uba) |
3eeb8e138e5c
mdiff: add a "blocksinrange" function to filter diff blocks by line range
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30023
diff
changeset
|
156 |
30023
ff17dff99295
mdiff: remove unused parameter 'refine' from allblocks()
Philippe Pepiot <philippe.pepiot@logilab.fr>
parents:
29416
diff
changeset
|
157 def allblocks(text1, text2, opts=None, lines1=None, lines2=None): |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
158 """Return (block, type) tuples, where block is an mdiff.blocks |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
159 line entry. type is '=' for blocks matching exactly one another |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
160 (bdiff blocks), '!' for non-matching blocks and '~' for blocks |
30023
ff17dff99295
mdiff: remove unused parameter 'refine' from allblocks()
Philippe Pepiot <philippe.pepiot@logilab.fr>
parents:
29416
diff
changeset
|
161 matching only after having filtered blank lines. |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
162 line1 and line2 are text1 and text2 split with splitnewlines() if |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
163 they are already available. |
15525
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
164 """ |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
165 if opts is None: |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
166 opts = defaultopts |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
167 if opts.ignorews or opts.ignorewsamount: |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
168 text1 = wsclean(opts, text1, False) |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
169 text2 = wsclean(opts, text2, False) |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
170 diff = bdiff.blocks(text1, text2) |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
171 for i, s1 in enumerate(diff): |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
172 # The first match is special. |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
173 # we've either found a match starting at line 0 or a match later |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
174 # in the file. If it starts later, old and new below will both be |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
175 # empty and we'll continue to the next match. |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
176 if i > 0: |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
177 s = diff[i - 1] |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
178 else: |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
179 s = [0, 0, 0, 0] |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
180 s = [s[1], s1[0], s[3], s1[2]] |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
181 |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
182 # bdiff sometimes gives huge matches past eof, this check eats them, |
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
183 # and deals with the special first match case described above |
15529
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
184 if s[0] != s[1] or s[2] != s[3]: |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
185 type = '!' |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
186 if opts.ignoreblanklines: |
15529
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
187 if lines1 is None: |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
188 lines1 = splitnewlines(text1) |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
189 if lines2 is None: |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
190 lines2 = splitnewlines(text2) |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
191 old = wsclean(opts, "".join(lines1[s[0]:s[1]])) |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
192 new = wsclean(opts, "".join(lines2[s[2]:s[3]])) |
b35cf47286a6
mdiff: split lines in allblocks() only when necessary
Patrick Mezard <pmezard@gmail.com>
parents:
15528
diff
changeset
|
193 if old == new: |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
194 type = '~' |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
195 yield s, type |
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
196 yield s1, '=' |
15525
935bf2e7dbc5
mdiff: extract blocks whitespace normalization in diffblocks()
Patrick Mezard <pmezard@gmail.com>
parents:
15513
diff
changeset
|
197 |
17940
c84ef0047a94
diff: unify calls to diffline
Guillermo Pérez <bisho@fb.com>
parents:
17939
diff
changeset
|
198 def unidiff(a, ad, b, bd, fn1, fn2, opts=defaultopts): |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
199 """Return a unified diff as a (headers, hunks) tuple. |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
200 |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
201 If the diff is not null, `headers` is a list with unified diff header |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
202 lines "--- <original>" and "+++ <new>" and `hunks` is a generator yielding |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
203 (hunkrange, hunklines) coming from _unidiff(). |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
204 Otherwise, `headers` and `hunks` are empty. |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
205 """ |
16362
16b75661828e
mdiff: fix diff header generation for files with spaces (issue3357)
Patrick Mezard <patrick@mezard.eu>
parents:
16089
diff
changeset
|
206 def datetag(date, fn=None): |
4679
826659bd8053
git patches: correct handling of filenames with spaces
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
4361
diff
changeset
|
207 if not opts.git and not opts.nodates: |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
208 return '\t%s' % date |
16362
16b75661828e
mdiff: fix diff header generation for files with spaces (issue3357)
Patrick Mezard <patrick@mezard.eu>
parents:
16089
diff
changeset
|
209 if fn and ' ' in fn: |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
210 return '\t' |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
211 return '' |
3026
d838bfac668d
Remove dates from git export file lines - they confuse git-apply
Brendan Cully <brendan@kublai.com>
parents:
2907
diff
changeset
|
212 |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
213 sentinel = [], () |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
214 if not a and not b: |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
215 return sentinel |
23299
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
216 |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
217 if opts.noprefix: |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
218 aprefix = bprefix = '' |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
219 else: |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
220 aprefix = 'a/' |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
221 bprefix = 'b/' |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
222 |
1379 | 223 epoch = util.datestr((0, 0)) |
264
4c1d7072d5cd
Attempt to make diff deal with null sources properly
mpm@selenic.com
parents:
249
diff
changeset
|
224 |
15437
8f08b635cdce
diff: always use / in paths in diff
Mads Kiilerich <mads@kiilerich.com>
parents:
15141
diff
changeset
|
225 fn1 = util.pconvert(fn1) |
8f08b635cdce
diff: always use / in paths in diff
Mads Kiilerich <mads@kiilerich.com>
parents:
15141
diff
changeset
|
226 fn2 = util.pconvert(fn2) |
8f08b635cdce
diff: always use / in paths in diff
Mads Kiilerich <mads@kiilerich.com>
parents:
15141
diff
changeset
|
227 |
31272
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
228 def checknonewline(lines): |
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
229 for text in lines: |
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
230 if text[-1] != '\n': |
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
231 text += "\n\ No newline at end of file\n" |
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
232 yield text |
e41946f39724
mdiff: extract a checknonewline inner function in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31271
diff
changeset
|
233 |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
234 if not opts.text and (util.binary(a) or util.binary(b)): |
6871
13fe85fe396b
mdiff: compare content of binary files directly
Martin Geisler <mg@daimi.au.dk>
parents:
6470
diff
changeset
|
235 if a and b and len(a) == len(b) and a == b: |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
236 return sentinel |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
237 headerlines = [] |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
238 hunks = (None, ['Binary file %s has changed\n' % fn1]), |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
239 elif not a: |
2251
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
240 b = splitnewlines(b) |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
241 if a is None: |
16362
16b75661828e
mdiff: fix diff header generation for files with spaces (issue3357)
Patrick Mezard <patrick@mezard.eu>
parents:
16089
diff
changeset
|
242 l1 = '--- /dev/null%s' % datetag(epoch) |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
243 else: |
23299
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
244 l1 = "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1)) |
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
245 l2 = "+++ %s%s" % (bprefix + fn2, datetag(bd, fn2)) |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
246 headerlines = [l1, l2] |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
247 size = len(b) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
248 hunkrange = (0, 0, 1, size) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
249 hunklines = ["@@ -0,0 +1,%d @@\n" % size] + ["+" + e for e in b] |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
250 hunks = (hunkrange, checknonewline(hunklines)), |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
251 elif not b: |
2251
35fb62a3a673
fix speed regression in mdiff caused by line split bugfix.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2248
diff
changeset
|
252 a = splitnewlines(a) |
23299
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
253 l1 = "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1)) |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
254 if b is None: |
16362
16b75661828e
mdiff: fix diff header generation for files with spaces (issue3357)
Patrick Mezard <patrick@mezard.eu>
parents:
16089
diff
changeset
|
255 l2 = '+++ /dev/null%s' % datetag(epoch) |
1723
fde8fb2cbede
Fix diff against an empty file (issue124) and add a test for this.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1637
diff
changeset
|
256 else: |
23299
1f510efcd5f3
mdiff.unidiff: add support for noprefix
Siddharth Agarwal <sid0@fb.com>
parents:
23294
diff
changeset
|
257 l2 = "+++ %s%s%s" % (bprefix, fn2, datetag(bd, fn2)) |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
258 headerlines = [l1, l2] |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
259 size = len(a) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
260 hunkrange = (1, size, 0, 0) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
261 hunklines = ["@@ -1,%d +0,0 @@\n" % size] + ["-" + e for e in a] |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
262 hunks = (hunkrange, checknonewline(hunklines)), |
264
4c1d7072d5cd
Attempt to make diff deal with null sources properly
mpm@selenic.com
parents:
249
diff
changeset
|
263 else: |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
264 diffhunks = _unidiff(a, b, opts=opts) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
265 try: |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
266 hunkrange, hunklines = next(diffhunks) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
267 except StopIteration: |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
268 return sentinel |
10614
d0050f36e688
remove header handling out of mdiff.bunidiff, rename it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10282
diff
changeset
|
269 |
31271
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
270 headerlines = [ |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
271 "--- %s%s%s" % (aprefix, fn1, datetag(ad, fn1)), |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
272 "+++ %s%s%s" % (bprefix, fn2, datetag(bd, fn2)), |
b3861be6aa6c
mdiff: distinguish diff headers from hunks in unidiff()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31269
diff
changeset
|
273 ] |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
274 def rewindhunks(): |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
275 yield hunkrange, checknonewline(hunklines) |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
276 for hr, hl in diffhunks: |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
277 yield hr, checknonewline(hl) |
170 | 278 |
31273
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
279 hunks = rewindhunks() |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
280 |
92714858dd3e
mdiff: let unidiff return (diffheader, hunks)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31272
diff
changeset
|
281 return headerlines, hunks |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
282 |
31267
881ed6a4cf87
mdiff: compute newlines-splitted texts within _unidiff
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30806
diff
changeset
|
283 def _unidiff(t1, t2, opts=defaultopts): |
31269
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
284 """Yield hunks of a headerless unified diff from t1 and t2 texts. |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
285 |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
286 Each hunk consists of a (hunkrange, hunklines) tuple where `hunkrange` is a |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
287 tuple (s1, l1, s2, l2) representing the range information of the hunk to |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
288 form the '@@ -s1,l1 +s2,l2 @@' header and `hunklines` is a list of lines |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
289 of the hunk combining said header followed by line additions and |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
290 deletions. |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
291 """ |
31267
881ed6a4cf87
mdiff: compute newlines-splitted texts within _unidiff
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30806
diff
changeset
|
292 l1 = splitnewlines(t1) |
881ed6a4cf87
mdiff: compute newlines-splitted texts within _unidiff
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
30806
diff
changeset
|
293 l2 = splitnewlines(t2) |
1637 | 294 def contextend(l, len): |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
295 ret = l + opts.context |
1637 | 296 if ret > len: |
297 ret = len | |
298 return ret | |
299 | |
300 def contextstart(l): | |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
301 ret = l - opts.context |
1637 | 302 if ret < 0: |
303 return 0 | |
304 return ret | |
305 | |
15141
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
306 lastfunc = [0, ''] |
10614
d0050f36e688
remove header handling out of mdiff.bunidiff, rename it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10282
diff
changeset
|
307 def yieldhunk(hunk): |
1637 | 308 (astart, a2, bstart, b2, delta) = hunk |
309 aend = contextend(a2, len(l1)) | |
310 alen = aend - astart | |
311 blen = b2 - bstart + aend - a2 | |
312 | |
313 func = "" | |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
314 if opts.showfunc: |
15141
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
315 lastpos, func = lastfunc |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
316 # walk backwards from the start of the context up to the start of |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
317 # the previous hunk context until we find a line starting with an |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
318 # alphanumeric char. |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
319 for i in xrange(astart - 1, lastpos - 1, -1): |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
320 if l1[i][0].isalnum(): |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
321 func = ' ' + l1[i].rstrip()[:40] |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
322 lastfunc[1] = func |
1637 | 323 break |
15141
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
324 # by recording this hunk's starting point as the next place to |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
325 # start looking for function lines, we avoid reading any line in |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
326 # the file more than once. |
16dc9a32ca04
mdiff: speed up showfunc for large diffs
Brodie Rao <brodie@bitheap.org>
parents:
12751
diff
changeset
|
327 lastfunc[0] = astart |
1637 | 328 |
15462
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
329 # zero-length hunk ranges report their start line as one less |
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
330 if alen: |
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
331 astart += 1 |
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
332 if blen: |
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
333 bstart += 1 |
2b1ec74c961f
mdiff/patch: fix bad hunk handling for unified diffs with zero context
Nicolas Venegas <nvenegas@atlassian.com>
parents:
15141
diff
changeset
|
334 |
31269
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
335 hunkrange = astart, alen, bstart, blen |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
336 hunklines = ( |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
337 ["@@ -%d,%d +%d,%d @@%s\n" % (hunkrange + (func,))] |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
338 + delta |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
339 + [' ' + l1[x] for x in xrange(a2, aend)] |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
340 ) |
5e7fd3a0b17f
mdiff: let _unidiff yield hunks as (<range information>, <hunk lines>)
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
31268
diff
changeset
|
341 yield hunkrange, hunklines |
1637 | 342 |
343 # bdiff.blocks gives us the matching sequences in the files. The loop | |
344 # below finds the spaces between those matching sequences and translates | |
345 # them into diff output. | |
346 # | |
347 hunk = None | |
16089
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
348 ignoredlines = 0 |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
349 for s, stype in allblocks(t1, t2, opts, l1, l2): |
16089
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
350 a1, a2, b1, b2 = s |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
351 if stype != '!': |
16089
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
352 if stype == '~': |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
353 # The diff context lines are based on t1 content. When |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
354 # blank lines are ignored, the new lines offsets must |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
355 # be adjusted as if equivalent blocks ('~') had the |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
356 # same sizes on both sides. |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
357 ignoredlines += (b2 - b1) - (a2 - a1) |
15526
e6519c628454
mdiff: make diffblocks() return all blocks, matching and changed
Patrick Mezard <pmezard@gmail.com>
parents:
15525
diff
changeset
|
358 continue |
1637 | 359 delta = [] |
360 old = l1[a1:a2] | |
361 new = l2[b1:b2] | |
362 | |
16089
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
363 b1 -= ignoredlines |
2e8f4b82c551
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
Patrick Mezard <patrick@mezard.eu>
parents:
15657
diff
changeset
|
364 b2 -= ignoredlines |
1637 | 365 astart = contextstart(a1) |
366 bstart = contextstart(b1) | |
367 prev = None | |
368 if hunk: | |
369 # join with the previous hunk if it falls inside the context | |
2874
4ec58b157265
refactor text diff/patch code.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2859
diff
changeset
|
370 if astart < hunk[1] + opts.context + 1: |
1637 | 371 prev = hunk |
372 astart = hunk[1] | |
373 bstart = hunk[3] | |
374 else: | |
10614
d0050f36e688
remove header handling out of mdiff.bunidiff, rename it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10282
diff
changeset
|
375 for x in yieldhunk(hunk): |
1637 | 376 yield x |
377 if prev: | |
378 # we've joined the previous hunk, record the new ending points. | |
379 hunk[1] = a2 | |
380 hunk[3] = b2 | |
381 delta = hunk[4] | |
382 else: | |
383 # create a new hunk | |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
384 hunk = [astart, a2, bstart, b2, delta] |
1637 | 385 |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
386 delta[len(delta):] = [' ' + x for x in l1[astart:a1]] |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
387 delta[len(delta):] = ['-' + x for x in old] |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
388 delta[len(delta):] = ['+' + x for x in new] |
1637 | 389 |
390 if hunk: | |
10614
d0050f36e688
remove header handling out of mdiff.bunidiff, rename it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10282
diff
changeset
|
391 for x in yieldhunk(hunk): |
1637 | 392 yield x |
393 | |
17939
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
394 def b85diff(to, tn): |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
395 '''print base85-encoded binary diff''' |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
396 def fmtline(line): |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
397 l = len(line) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
398 if l <= 26: |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
399 l = chr(ord('A') + l - 1) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
400 else: |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
401 l = chr(l - 26 + ord('a') - 1) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
402 return '%c%s\n' % (l, base85.b85encode(line, True)) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
403 |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
404 def chunk(text, csize=52): |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
405 l = len(text) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
406 i = 0 |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
407 while i < l: |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
408 yield text[i:i + csize] |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
409 i += csize |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
410 |
17946
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
411 if to is None: |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
412 to = '' |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
413 if tn is None: |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
414 tn = '' |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
415 |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
416 if to == tn: |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
417 return '' |
17939
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
418 |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
419 # TODO: deltas |
17946
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
420 ret = [] |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
421 ret.append('GIT binary patch\n') |
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
422 ret.append('literal %s\n' % len(tn)) |
17939
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
423 for l in chunk(zlib.compress(tn)): |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
424 ret.append(fmtline(l)) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
425 ret.append('\n') |
17946
1e13b1184292
diff: move index header generation to patch
Guillermo Pérez <bisho@fb.com>
parents:
17941
diff
changeset
|
426 |
17939
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
427 return ''.join(ret) |
d587925680d9
diff: move b85diff to mdiff module
Guillermo Pérez <bisho at fb.com>
parents:
16362
diff
changeset
|
428 |
120
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
429 def patchtext(bin): |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
430 pos = 0 |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
431 t = [] |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
432 while pos < len(bin): |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
433 p1, p2, l = struct.unpack(">lll", bin[pos:pos + 12]) |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
434 pos += 12 |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
435 t.append(bin[pos:pos + l]) |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
436 pos += l |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
437 return "".join(t) |
bae6f0328f63
Add a function to return the new text from a binary diff
mpm@selenic.com
parents:
75
diff
changeset
|
438 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
439 def patch(a, bin): |
12025
2315a95ee887
mdiff.patch(): add a special case for when the base text is empty
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10614
diff
changeset
|
440 if len(a) == 0: |
2315a95ee887
mdiff.patch(): add a special case for when the base text is empty
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10614
diff
changeset
|
441 # skip over trivial delta header |
15657
d976b1ef6760
util: don't mess with builtins to emulate buffer()
Matt Mackall <mpm@selenic.com>
parents:
15530
diff
changeset
|
442 return util.buffer(bin, 12) |
1379 | 443 return mpatch.patches(a, [bin]) |
432 | 444 |
4361
99c853a1408c
add mdiff.get_matching_blocks
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
4108
diff
changeset
|
445 # similar to difflib.SequenceMatcher.get_matching_blocks |
99c853a1408c
add mdiff.get_matching_blocks
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
4108
diff
changeset
|
446 def get_matching_blocks(a, b): |
99c853a1408c
add mdiff.get_matching_blocks
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
4108
diff
changeset
|
447 return [(d[0], d[2], d[1] - d[0]) for d in bdiff.blocks(a, b)] |
99c853a1408c
add mdiff.get_matching_blocks
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
4108
diff
changeset
|
448 |
5367
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
4878
diff
changeset
|
449 def trivialdiffheader(length): |
27711
7a678a12a5cf
mdiff: don't emit a diff header for empty trivial deltas
Mike Hommey <mh@glandium.org>
parents:
27484
diff
changeset
|
450 return struct.pack(">lll", 0, 0, length) if length else '' |
5367
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
4878
diff
changeset
|
451 |
24119
a5a06c9c7407
mdiff: add helper for making deltas which replace the full text of a revision
Mike Edgar <adgar@google.com>
parents:
23299
diff
changeset
|
452 def replacediffheader(oldlen, newlen): |
a5a06c9c7407
mdiff: add helper for making deltas which replace the full text of a revision
Mike Edgar <adgar@google.com>
parents:
23299
diff
changeset
|
453 return struct.pack(">lll", 0, oldlen, newlen) |
a5a06c9c7407
mdiff: add helper for making deltas which replace the full text of a revision
Mike Edgar <adgar@google.com>
parents:
23299
diff
changeset
|
454 |
1379 | 455 patches = mpatch.patches |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
1723
diff
changeset
|
456 patchedsize = mpatch.patchedsize |
432 | 457 textdiff = bdiff.bdiff |