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annotate diff_cmd.py @ 120:f508c1fa19a5

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hg_delta_editor: do not assume branches are copied from trunk by default Here is what happen in jquery repository: - kelvin-dev branch is created in r1617 with an empty directory for the datePicker plugin - commits are done - datePicker plugin is merged in trunk Before the fix, the converter assumed the initial empty commit had for parent some other commit of trunk, therefore adding all its files, which was wrong. And we ended with 'alignDemo.html' in converted trunk@5946 while it was not in the source revision.
author Patrick Mezard <pmezard@gmail.com>
date Sat, 29 Nov 2008 11:25:01 -0600
parents 91ce18fa0375
children 40474f6c1f84
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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91ce18fa0375 Add a diff command that behaves kind of like svn diff.
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1 #!/usr/bin/env python
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2 import re
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3
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4 from mercurial import patch
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5
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6 import util
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7 import hg_delta_editor
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8
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9 b_re = re.compile(r'^\+\+\+ b\/([^\n]*)', re.MULTILINE)
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10 a_re = re.compile(r'^--- a\/([^\n]*)', re.MULTILINE)
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11 devnull_re = re.compile(r'^([-+]{3}) /dev/null', re.MULTILINE)
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12 header_re = re.compile(r'^diff --git .* b\/(.*)', re.MULTILINE)
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13 newfile_devnull_re = re.compile(r'^--- /dev/null\n\+\+\+ b/([^\n]*)',
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14 re.MULTILINE)
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15 def filterdiff(diff, base_revision):
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16 diff = newfile_devnull_re.sub(r'--- \1\t(revision 0)' '\n'
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17 r'+++ \1\t(working copy)',
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18 diff)
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19 diff = a_re.sub(r'--- \1'+ ('\t(revision %d)' % base_revision), diff)
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20 diff = b_re.sub(r'+++ \1' + '\t(working copy)', diff)
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21 diff = devnull_re.sub(r'\1 /dev/null' '\t(working copy)', diff)
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22
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23 diff = header_re.sub(r'Index: \1' + '\n' + ('=' * 67), diff)
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24 return diff
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25
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26
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27 @util.register_subcommand('diff')
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28 def diff_command(ui, repo, hg_repo_path, **opts):
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29 """Show a diff of the most recent revision against its parent from svn.
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30 """
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31 hge = hg_delta_editor.HgChangeReceiver(hg_repo_path,
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32 ui_=ui)
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33 svn_commit_hashes = dict(zip(hge.revmap.itervalues(),
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34 hge.revmap.iterkeys()))
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35 o_r = util.outgoing_revisions(ui, repo, hge, svn_commit_hashes)
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36 parent = repo.parents()[0]
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37 if o_r:
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38 parent = repo[o_r[-1]].parents()[0]
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39 base_rev, _junk = svn_commit_hashes[parent.node()]
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40 it = patch.diff(repo, parent.node(), None,
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41 opts=patch.diffopts(ui, opts))
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42 ui.write(filterdiff(''.join(it), base_rev))