mirror of
https://github.com/python/cpython.git
synced 2024-11-25 01:20:47 +01:00
b940e113bf
(a) "except E, V" -> "except E as V" (b) V is now limited to a simple name (local variable) (c) V is now deleted at the end of the except block
134 lines
3.7 KiB
Python
Executable File
134 lines
3.7 KiB
Python
Executable File
#! /usr/bin/env python
|
|
|
|
# Module ndiff version 1.7.0
|
|
# Released to the public domain 08-Dec-2000,
|
|
# by Tim Peters (tim.one@home.com).
|
|
|
|
# Provided as-is; use at your own risk; no warranty; no promises; enjoy!
|
|
|
|
# ndiff.py is now simply a front-end to the difflib.ndiff() function.
|
|
# Originally, it contained the difflib.SequenceMatcher class as well.
|
|
# This completes the raiding of reusable code from this formerly
|
|
# self-contained script.
|
|
|
|
"""ndiff [-q] file1 file2
|
|
or
|
|
ndiff (-r1 | -r2) < ndiff_output > file1_or_file2
|
|
|
|
Print a human-friendly file difference report to stdout. Both inter-
|
|
and intra-line differences are noted. In the second form, recreate file1
|
|
(-r1) or file2 (-r2) on stdout, from an ndiff report on stdin.
|
|
|
|
In the first form, if -q ("quiet") is not specified, the first two lines
|
|
of output are
|
|
|
|
-: file1
|
|
+: file2
|
|
|
|
Each remaining line begins with a two-letter code:
|
|
|
|
"- " line unique to file1
|
|
"+ " line unique to file2
|
|
" " line common to both files
|
|
"? " line not present in either input file
|
|
|
|
Lines beginning with "? " attempt to guide the eye to intraline
|
|
differences, and were not present in either input file. These lines can be
|
|
confusing if the source files contain tab characters.
|
|
|
|
The first file can be recovered by retaining only lines that begin with
|
|
" " or "- ", and deleting those 2-character prefixes; use ndiff with -r1.
|
|
|
|
The second file can be recovered similarly, but by retaining only " " and
|
|
"+ " lines; use ndiff with -r2; or, on Unix, the second file can be
|
|
recovered by piping the output through
|
|
|
|
sed -n '/^[+ ] /s/^..//p'
|
|
"""
|
|
|
|
__version__ = 1, 7, 0
|
|
|
|
import difflib, sys
|
|
|
|
def fail(msg):
|
|
out = sys.stderr.write
|
|
out(msg + "\n\n")
|
|
out(__doc__)
|
|
return 0
|
|
|
|
# open a file & return the file object; gripe and return 0 if it
|
|
# couldn't be opened
|
|
def fopen(fname):
|
|
try:
|
|
return open(fname, 'U')
|
|
except IOError as detail:
|
|
return fail("couldn't open " + fname + ": " + str(detail))
|
|
|
|
# open two files & spray the diff to stdout; return false iff a problem
|
|
def fcompare(f1name, f2name):
|
|
f1 = fopen(f1name)
|
|
f2 = fopen(f2name)
|
|
if not f1 or not f2:
|
|
return 0
|
|
|
|
a = f1.readlines(); f1.close()
|
|
b = f2.readlines(); f2.close()
|
|
for line in difflib.ndiff(a, b):
|
|
print line,
|
|
|
|
return 1
|
|
|
|
# crack args (sys.argv[1:] is normal) & compare;
|
|
# return false iff a problem
|
|
|
|
def main(args):
|
|
import getopt
|
|
try:
|
|
opts, args = getopt.getopt(args, "qr:")
|
|
except getopt.error as detail:
|
|
return fail(str(detail))
|
|
noisy = 1
|
|
qseen = rseen = 0
|
|
for opt, val in opts:
|
|
if opt == "-q":
|
|
qseen = 1
|
|
noisy = 0
|
|
elif opt == "-r":
|
|
rseen = 1
|
|
whichfile = val
|
|
if qseen and rseen:
|
|
return fail("can't specify both -q and -r")
|
|
if rseen:
|
|
if args:
|
|
return fail("no args allowed with -r option")
|
|
if whichfile in ("1", "2"):
|
|
restore(whichfile)
|
|
return 1
|
|
return fail("-r value must be 1 or 2")
|
|
if len(args) != 2:
|
|
return fail("need 2 filename args")
|
|
f1name, f2name = args
|
|
if noisy:
|
|
print '-:', f1name
|
|
print '+:', f2name
|
|
return fcompare(f1name, f2name)
|
|
|
|
# read ndiff output from stdin, and print file1 (which=='1') or
|
|
# file2 (which=='2') to stdout
|
|
|
|
def restore(which):
|
|
restored = difflib.restore(sys.stdin.readlines(), which)
|
|
sys.stdout.writelines(restored)
|
|
|
|
if __name__ == '__main__':
|
|
args = sys.argv[1:]
|
|
if "-profile" in args:
|
|
import profile, pstats
|
|
args.remove("-profile")
|
|
statf = "ndiff.pro"
|
|
profile.run("main(args)", statf)
|
|
stats = pstats.Stats(statf)
|
|
stats.strip_dirs().sort_stats('time').print_stats()
|
|
else:
|
|
main(args)
|