Mercurial > hg > mercurial-crew-with-dirclash
annotate contrib/hgdiff @ 5377:756a43a30e34
convert: readd --filemap
To handle merges correctly, this revision adds a filemap_source class
that wraps a converter_source and does the work necessary to calculate
the subgraph we're interested in.
The wrapped converter_source must provide a new getchangedfiles method
that, given a revision rev, and an index N, returns the list of files
that are different in rev and its Nth parent.
The implementation depends on the ability to skip some revisions and to
change the parents field of the commit objects that we returned earlier.
To make the conversion restartable, we assume the revisons in the
revmapfile are topologically sorted.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Thu, 04 Oct 2007 23:21:37 -0300 |
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1 #!/usr/bin/env python |
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2 |
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3 import os, sys, struct, stat |
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4 import difflib |
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5 import re |
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6 from optparse import OptionParser |
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7 from mercurial.bdiff import bdiff, blocks |
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8 from mercurial.mdiff import bunidiff, diffopts |
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9 |
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10 VERSION="0.3" |
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11 usage = "usage: %prog [options] file1 file2" |
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12 parser = OptionParser(usage=usage) |
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13 |
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14 parser.add_option("-d", "--difflib", action="store_true", default=False) |
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15 parser.add_option('-x', '--count', default=1) |
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16 parser.add_option('-c', '--context', type="int", default=3) |
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17 parser.add_option('-p', '--show-c-function', action="store_true", default=False) |
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18 parser.add_option('-w', '--ignore-all-space', action="store_true", |
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19 default=False) |
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20 |
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21 (options, args) = parser.parse_args() |
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22 |
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23 if not args: |
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24 parser.print_help() |
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25 sys.exit(1) |
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26 |
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27 # simple utility function to put all the |
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28 # files from a directory tree into a dict |
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29 def buildlist(names, top): |
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30 tlen = len(top) |
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31 for root, dirs, files in os.walk(top): |
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32 l = root[tlen + 1:] |
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33 for x in files: |
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34 p = os.path.join(root, x) |
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35 st = os.lstat(p) |
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36 if stat.S_ISREG(st.st_mode): |
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37 names[os.path.join(l, x)] = (st.st_dev, st.st_ino) |
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38 |
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39 def diff_files(file1, file2): |
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40 if file1 == None: |
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41 b = file(file2).read().splitlines(1) |
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42 l1 = "--- %s\n" % (file2) |
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43 l2 = "+++ %s\n" % (file2) |
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44 l3 = "@@ -0,0 +1,%d @@\n" % len(b) |
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45 l = [l1, l2, l3] + ["+" + e for e in b] |
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46 elif file2 == None: |
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47 a = file(file1).read().splitlines(1) |
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48 l1 = "--- %s\n" % (file1) |
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49 l2 = "+++ %s\n" % (file1) |
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50 l3 = "@@ -1,%d +0,0 @@\n" % len(a) |
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51 l = [l1, l2, l3] + ["-" + e for e in a] |
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52 else: |
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53 t1 = file(file1).read() |
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54 t2 = file(file2).read() |
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55 l1 = t1.splitlines(1) |
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56 l2 = t2.splitlines(1) |
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57 if options.difflib: |
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58 l = difflib.unified_diff(l1, l2, file1, file2) |
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59 else: |
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60 l = bunidiff(t1, t2, l1, l2, file1, file2, |
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61 diffopts(context=options.context, |
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62 showfunc=options.show_c_function, |
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63 ignorews=options.ignore_all_space)) |
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64 for x in l: |
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65 if x[-1] != '\n': |
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66 x += "\n\ No newline at end of file\n" |
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67 print x, |
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68 |
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69 file1 = args[0] |
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70 file2 = args[1] |
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71 |
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72 if os.path.isfile(file1) and os.path.isfile(file2): |
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73 diff_files(file1, file2) |
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74 elif os.path.isdir(file1): |
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75 if not os.path.isdir(file2): |
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76 sys.stderr.write("file types don't match\n") |
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77 sys.exit(1) |
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78 |
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79 d1 = {} |
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80 d2 = {} |
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81 |
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82 buildlist(d1, file1) |
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83 buildlist(d2, file2) |
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84 keys = d1.keys() |
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85 keys.sort() |
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86 for x in keys: |
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87 if x not in d2: |
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88 f2 = None |
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89 else: |
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90 f2 = os.path.join(file2, x) |
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91 st1 = d1[x] |
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92 st2 = d2[x] |
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93 del d2[x] |
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94 if st1[0] == st2[0] and st1[1] == st2[1]: |
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95 sys.stderr.write("%s is a hard link\n" % x) |
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96 continue |
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97 x = os.path.join(file1, x) |
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98 diff_files(x, f2) |
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99 keys = d2.keys() |
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100 keys.sort() |
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101 for x in keys: |
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102 f1 = None |
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103 x = os.path.join(file2, x) |
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104 diff_files(f1, x) |
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105 |