mirror of
https://github.com/DarrenOfficial/dpaste.git
synced 2024-11-26 21:29:05 +11:00
Removed debris
This commit is contained in:
Martin Mahner
parent
5a2fc16343
commit
b5f4213535
1 changed files with 0 additions and 217 deletions
217
dpaste/diff.py
217
dpaste/diff.py
|
|
@ -1,217 +0,0 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
"""
|
||||
lodgeit.lib.diff
|
||||
~~~~~~~~~~~~~~~~
|
||||
|
||||
Render a nice diff between two things.
|
||||
|
||||
:copyright: 2007 by Armin Ronacher.
|
||||
:license: BSD
|
||||
|
||||
https://github.com/openstack-infra/lodgeit/blob/master/lodgeit/lib/diff.py
|
||||
"""
|
||||
import re
|
||||
import time
|
||||
from html import escape
|
||||
|
||||
import six
|
||||
|
||||
|
||||
def prepare_udiff(udiff):
|
||||
"""Prepare an udiff for a template."""
|
||||
return DiffRenderer(udiff).prepare()
|
||||
|
||||
|
||||
class DiffRenderer(object):
|
||||
"""Give it a unified diff and it renders you a beautiful
|
||||
html diff :-)
|
||||
"""
|
||||
_chunk_re = re.compile(r'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@')
|
||||
|
||||
def __init__(self, udiff):
|
||||
""":param udiff: a text in udiff format"""
|
||||
self.lines = [escape(line) for line in udiff.splitlines()]
|
||||
|
||||
def _extract_rev(self, line1, line2):
|
||||
def _extract(line):
|
||||
parts = line.split(None, 1)
|
||||
return parts[0], (len(parts) == 2 and parts[1] or None)
|
||||
try:
|
||||
if line1.startswith('--- ') and line2.startswith('+++ '):
|
||||
return _extract(line1[4:]), _extract(line2[4:])
|
||||
except (ValueError, IndexError):
|
||||
pass
|
||||
return (None, None), (None, None)
|
||||
|
||||
def _highlight_line(self, line, next):
|
||||
"""Highlight inline changes in both lines."""
|
||||
start = 0
|
||||
limit = min(len(line['line']), len(next['line']))
|
||||
while start < limit and line['line'][start] == next['line'][start]:
|
||||
start += 1
|
||||
end = -1
|
||||
limit -= start
|
||||
while -end <= limit and line['line'][end] == next['line'][end]:
|
||||
end -= 1
|
||||
end += 1
|
||||
if start or end:
|
||||
def do(l):
|
||||
last = end + len(l['line'])
|
||||
if l['action'] == 'add':
|
||||
tag = 'ins'
|
||||
else:
|
||||
tag = 'del'
|
||||
l['line'] = u'%s<%s>%s</%s>%s' % (
|
||||
l['line'][:start],
|
||||
tag,
|
||||
l['line'][start:last],
|
||||
tag,
|
||||
l['line'][last:]
|
||||
)
|
||||
do(line)
|
||||
do(next)
|
||||
|
||||
def _parse_info(self):
|
||||
"""Look for custom information preceding the diff."""
|
||||
nlines = len(self.lines)
|
||||
if not nlines:
|
||||
return
|
||||
firstline = self.lines[0]
|
||||
info = []
|
||||
|
||||
# look for Hg export changeset
|
||||
if firstline.startswith('# HG changeset patch'):
|
||||
info.append(('Type', 'HG export changeset'))
|
||||
i = 0
|
||||
line = firstline
|
||||
while line.startswith('#'):
|
||||
if line.startswith('# User'):
|
||||
info.append(('User', line[7:].strip()))
|
||||
elif line.startswith('# Date'):
|
||||
try:
|
||||
t, tz = map(int, line[7:].split())
|
||||
info.append(('Date', time.strftime(
|
||||
'%b %d, %Y %H:%M:%S', time.gmtime(float(t) - tz))))
|
||||
except Exception:
|
||||
pass
|
||||
elif line.startswith('# Branch'):
|
||||
info.append(('Branch', line[9:].strip()))
|
||||
i += 1
|
||||
if i == nlines:
|
||||
return info
|
||||
line = self.lines[i]
|
||||
commitmsg = ''
|
||||
while not line.startswith('diff'):
|
||||
commitmsg += line + '\n'
|
||||
i += 1
|
||||
if i == nlines:
|
||||
return info
|
||||
line = self.lines[i]
|
||||
info.append(('Commit message', '\n' + commitmsg.strip()))
|
||||
self.lines = self.lines[i:]
|
||||
return info
|
||||
|
||||
def _parse_udiff(self):
|
||||
"""Parse the diff an return data for the template."""
|
||||
info = self._parse_info()
|
||||
|
||||
in_header = True
|
||||
header = []
|
||||
lineiter = iter(self.lines)
|
||||
files = []
|
||||
try:
|
||||
line = six.next(lineiter)
|
||||
while 1:
|
||||
# continue until we found the old file
|
||||
if not line.startswith('--- '):
|
||||
if in_header:
|
||||
header.append(line)
|
||||
line = six.next(lineiter)
|
||||
continue
|
||||
|
||||
if header and all(x.strip() for x in header):
|
||||
files.append({'is_header': True, 'lines': header})
|
||||
header = []
|
||||
|
||||
in_header = False
|
||||
chunks = []
|
||||
old, new = self._extract_rev(line, six.next(lineiter))
|
||||
files.append({
|
||||
'is_header': False,
|
||||
'old_filename': old[0],
|
||||
'old_revision': old[1],
|
||||
'new_filename': new[0],
|
||||
'new_revision': new[1],
|
||||
'chunks': chunks
|
||||
})
|
||||
|
||||
line = six.next(lineiter)
|
||||
while line:
|
||||
match = self._chunk_re.match(line)
|
||||
if not match:
|
||||
in_header = True
|
||||
break
|
||||
|
||||
lines = []
|
||||
chunks.append(lines)
|
||||
|
||||
old_line, old_end, new_line, new_end = \
|
||||
[int(x or 1) for x in match.groups()]
|
||||
old_line -= 1
|
||||
new_line -= 1
|
||||
old_end += old_line
|
||||
new_end += new_line
|
||||
line = six.next(lineiter)
|
||||
|
||||
while old_line < old_end or new_line < new_end:
|
||||
if line:
|
||||
command, line = line[0], line[1:]
|
||||
else:
|
||||
command = ' '
|
||||
affects_old = affects_new = False
|
||||
|
||||
if command == '+':
|
||||
affects_new = True
|
||||
action = 'add'
|
||||
elif command == '-':
|
||||
affects_old = True
|
||||
action = 'del'
|
||||
else:
|
||||
affects_old = affects_new = True
|
||||
action = 'unmod'
|
||||
|
||||
old_line += affects_old
|
||||
new_line += affects_new
|
||||
lines.append({
|
||||
'old_lineno': affects_old and old_line or u'',
|
||||
'new_lineno': affects_new and new_line or u'',
|
||||
'action': action,
|
||||
'line': line
|
||||
})
|
||||
line = six.next(lineiter)
|
||||
|
||||
except StopIteration:
|
||||
pass
|
||||
|
||||
# highlight inline changes
|
||||
for file in files:
|
||||
if file['is_header']:
|
||||
continue
|
||||
for chunk in file['chunks']:
|
||||
lineiter = iter(chunk)
|
||||
try:
|
||||
while True:
|
||||
line = six.next(lineiter)
|
||||
if line['action'] != 'unmod':
|
||||
nextline = six.next(lineiter)
|
||||
if nextline['action'] == 'unmod' or \
|
||||
nextline['action'] == line['action']:
|
||||
continue
|
||||
self._highlight_line(line, nextline)
|
||||
except StopIteration:
|
||||
pass
|
||||
|
||||
return files, info
|
||||
|
||||
def prepare(self):
|
||||
return self._parse_udiff()
|
||||
Loading…
Reference in a new issue