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#!/usr/bin/env python
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import os, sys, struct, stat
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import difflib
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import re
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from optparse import OptionParser
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from mercurial.bdiff import bdiff, blocks
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from mercurial.mdiff import bunidiff, diffopts
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VERSION="0.3"
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usage = "usage: %prog [options] file1 file2"
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parser = OptionParser(usage=usage)
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parser.add_option("-d", "--difflib", action="store_true", default=False)
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parser.add_option('-x', '--count', default=1)
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parser.add_option('-c', '--context', type="int", default=3)
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parser.add_option('-p', '--show-c-function', action="store_true", default=False)
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parser.add_option('-w', '--ignore-all-space', action="store_true",
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default=False)
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(options, args) = parser.parse_args()
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if not args:
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parser.print_help()
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sys.exit(1)
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# simple utility function to put all the
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# files from a directory tree into a dict
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def buildlist(names, top):
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tlen = len(top)
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for root, dirs, files in os.walk(top):
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l = root[tlen + 1:]
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for x in files:
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p = os.path.join(root, x)
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st = os.lstat(p)
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if stat.S_ISREG(st.st_mode):
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names[os.path.join(l, x)] = (st.st_dev, st.st_ino)
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def diff_files(file1, file2):
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if file1 == None:
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b = file(file2).read().splitlines(1)
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l1 = "--- %s\n" % (file2)
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l2 = "+++ %s\n" % (file2)
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l3 = "@@ -0,0 +1,%d @@\n" % len(b)
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l = [l1, l2, l3] + ["+" + e for e in b]
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elif file2 == None:
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a = file(file1).read().splitlines(1)
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l1 = "--- %s\n" % (file1)
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l2 = "+++ %s\n" % (file1)
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l3 = "@@ -1,%d +0,0 @@\n" % len(a)
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l = [l1, l2, l3] + ["-" + e for e in a]
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else:
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t1 = file(file1).read()
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t2 = file(file2).read()
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l1 = t1.splitlines(1)
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l2 = t2.splitlines(1)
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if options.difflib:
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l = difflib.unified_diff(l1, l2, file1, file2)
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else:
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l = bunidiff(t1, t2, l1, l2, file1, file2,
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diffopts(context=options.context,
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showfunc=options.show_c_function,
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ignorews=options.ignore_all_space))
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for x in l:
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if x[-1] != '\n':
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x += "\n\ No newline at end of file\n"
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print x,
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file1 = args[0]
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file2 = args[1]
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if os.path.isfile(file1) and os.path.isfile(file2):
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diff_files(file1, file2)
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elif os.path.isdir(file1):
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if not os.path.isdir(file2):
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sys.stderr.write("file types don't match\n")
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sys.exit(1)
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d1 = {}
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d2 = {}
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buildlist(d1, file1)
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buildlist(d2, file2)
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keys = d1.keys()
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keys.sort()
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for x in keys:
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if x not in d2:
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f2 = None
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else:
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f2 = os.path.join(file2, x)
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st1 = d1[x]
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st2 = d2[x]
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del d2[x]
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if st1[0] == st2[0] and st1[1] == st2[1]:
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sys.stderr.write("%s is a hard link\n" % x)
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continue
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x = os.path.join(file1, x)
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diff_files(x, f2)
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keys = d2.keys()
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keys.sort()
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for x in keys:
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f1 = None
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x = os.path.join(file2, x)
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diff_files(f1, x)
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