Enable demandimport only in scripts, not in importable modules (issue605)
This way other applications can choose if and when they want this feature,
because it might be problematic if those applications rely on ImportError.
#!/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)