Mercurial > hg > mercurial-crew-with-dirclash
view contrib/hgdiff @ 5045:f191bc3916f7
merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
author | Matt Mackall <mpm@selenic.com> |
---|---|
date | Wed, 01 Aug 2007 12:33:12 -0500 |
parents | 0f308690bda8 |
children | ea7b982b6c08 |
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#!/usr/bin/env python import os, sys, struct, stat import difflib import re from optparse import OptionParser from mercurial.bdiff import bdiff, blocks from mercurial.mdiff import bunidiff, diffopts VERSION="0.3" usage = "usage: %prog [options] file1 file2" parser = OptionParser(usage=usage) parser.add_option("-d", "--difflib", action="store_true", default=False) parser.add_option('-x', '--count', default=1) parser.add_option('-c', '--context', type="int", default=3) parser.add_option('-p', '--show-c-function', action="store_true", default=False) parser.add_option('-w', '--ignore-all-space', action="store_true", default=False) (options, args) = parser.parse_args() if not args: parser.print_help() sys.exit(1) # simple utility function to put all the # files from a directory tree into a dict def buildlist(names, top): tlen = len(top) for root, dirs, files in os.walk(top): l = root[tlen + 1:] for x in files: p = os.path.join(root, x) st = os.lstat(p) if stat.S_ISREG(st.st_mode): names[os.path.join(l, x)] = (st.st_dev, st.st_ino) def diff_files(file1, file2): if file1 == None: b = file(file2).read().splitlines(1) l1 = "--- %s\n" % (file2) l2 = "+++ %s\n" % (file2) l3 = "@@ -0,0 +1,%d @@\n" % len(b) l = [l1, l2, l3] + ["+" + e for e in b] elif file2 == None: a = file(file1).read().splitlines(1) l1 = "--- %s\n" % (file1) l2 = "+++ %s\n" % (file1) l3 = "@@ -1,%d +0,0 @@\n" % len(a) l = [l1, l2, l3] + ["-" + e for e in a] else: t1 = file(file1).read() t2 = file(file2).read() l1 = t1.splitlines(1) l2 = t2.splitlines(1) if options.difflib: l = difflib.unified_diff(l1, l2, file1, file2) else: l = bunidiff(t1, t2, l1, l2, file1, file2, diffopts(context=options.context, showfunc=options.show_c_function, ignorews=options.ignore_all_space)) for x in l: if x[-1] != '\n': x += "\n\ No newline at end of file\n" print x, file1 = args[0] file2 = args[1] if os.path.isfile(file1) and os.path.isfile(file2): diff_files(file1, file2) elif os.path.isdir(file1): if not os.path.isdir(file2): sys.stderr.write("file types don't match\n") sys.exit(1) d1 = {} d2 = {} buildlist(d1, file1) buildlist(d2, file2) keys = d1.keys() keys.sort() for x in keys: if x not in d2: f2 = None else: f2 = os.path.join(file2, x) st1 = d1[x] st2 = d2[x] del d2[x] if st1[0] == st2[0] and st1[1] == st2[1]: sys.stderr.write("%s is a hard link\n" % x) continue x = os.path.join(file1, x) diff_files(x, f2) keys = d2.keys() keys.sort() for x in keys: f1 = None x = os.path.join(file2, x) diff_files(f1, x)