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# record.py
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#
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# Copyright 2007 Bryan O'Sullivan <bos@serpentine.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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'''commands to interactively select changes for commit/qrefresh'''
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from mercurial.i18n import gettext, _
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from mercurial import cmdutil, commands, extensions, hg, mdiff, patch
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from mercurial import util
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import copy, cStringIO, errno, os, re, shutil, tempfile
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cmdtable = {}
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command = cmdutil.command(cmdtable)
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lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)')
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diffopts = [
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('w', 'ignore-all-space', False,
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_('ignore white space when comparing lines')),
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('b', 'ignore-space-change', None,
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_('ignore changes in the amount of white space')),
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('B', 'ignore-blank-lines', None,
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_('ignore changes whose lines are all blank')),
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]
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def scanpatch(fp):
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"""like patch.iterhunks, but yield different events
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- ('file', [header_lines + fromfile + tofile])
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- ('context', [context_lines])
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- ('hunk', [hunk_lines])
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- ('range', (-start,len, +start,len, diffp))
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"""
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lr = patch.linereader(fp)
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def scanwhile(first, p):
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"""scan lr while predicate holds"""
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lines = [first]
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while True:
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line = lr.readline()
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if not line:
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break
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if p(line):
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lines.append(line)
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else:
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lr.push(line)
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break
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return lines
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while True:
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line = lr.readline()
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if not line:
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break
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if line.startswith('diff --git a/') or line.startswith('diff -r '):
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def notheader(line):
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s = line.split(None, 1)
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return not s or s[0] not in ('---', 'diff')
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header = scanwhile(line, notheader)
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fromfile = lr.readline()
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if fromfile.startswith('---'):
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tofile = lr.readline()
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header += [fromfile, tofile]
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else:
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lr.push(fromfile)
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yield 'file', header
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elif line[0] == ' ':
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yield 'context', scanwhile(line, lambda l: l[0] in ' \\')
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elif line[0] in '-+':
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yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\')
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else:
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m = lines_re.match(line)
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if m:
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yield 'range', m.groups()
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else:
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raise patch.PatchError('unknown patch content: %r' % line)
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class header(object):
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"""patch header
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XXX shoudn't we move this to mercurial/patch.py ?
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"""
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diffgit_re = re.compile('diff --git a/(.*) b/(.*)$')
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diff_re = re.compile('diff -r .* (.*)$')
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allhunks_re = re.compile('(?:index|new file|deleted file) ')
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pretty_re = re.compile('(?:new file|deleted file) ')
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special_re = re.compile('(?:index|new|deleted|copy|rename) ')
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def __init__(self, header):
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self.header = header
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self.hunks = []
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def binary(self):
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return util.any(h.startswith('index ') for h in self.header)
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def pretty(self, fp):
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for h in self.header:
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if h.startswith('index '):
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fp.write(_('this modifies a binary file (all or nothing)\n'))
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break
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if self.pretty_re.match(h):
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fp.write(h)
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if self.binary():
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fp.write(_('this is a binary file\n'))
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break
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if h.startswith('---'):
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fp.write(_('%d hunks, %d lines changed\n') %
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(len(self.hunks),
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sum([max(h.added, h.removed) for h in self.hunks])))
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break
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fp.write(h)
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def write(self, fp):
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fp.write(''.join(self.header))
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def allhunks(self):
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return util.any(self.allhunks_re.match(h) for h in self.header)
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def files(self):
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match = self.diffgit_re.match(self.header[0])
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if match:
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fromfile, tofile = match.groups()
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if fromfile == tofile:
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return [fromfile]
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return [fromfile, tofile]
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else:
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return self.diff_re.match(self.header[0]).groups()
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def filename(self):
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return self.files()[-1]
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def __repr__(self):
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return '<header %s>' % (' '.join(map(repr, self.files())))
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def special(self):
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return util.any(self.special_re.match(h) for h in self.header)
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def countchanges(hunk):
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"""hunk -> (n+,n-)"""
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add = len([h for h in hunk if h[0] == '+'])
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rem = len([h for h in hunk if h[0] == '-'])
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return add, rem
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class hunk(object):
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"""patch hunk
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XXX shouldn't we merge this with patch.hunk ?
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"""
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maxcontext = 3
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def __init__(self, header, fromline, toline, proc, before, hunk, after):
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def trimcontext(number, lines):
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delta = len(lines) - self.maxcontext
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if False and delta > 0:
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return number + delta, lines[:self.maxcontext]
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return number, lines
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self.header = header
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self.fromline, self.before = trimcontext(fromline, before)
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self.toline, self.after = trimcontext(toline, after)
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self.proc = proc
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self.hunk = hunk
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self.added, self.removed = countchanges(self.hunk)
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def write(self, fp):
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delta = len(self.before) + len(self.after)
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if self.after and self.after[-1] == '\\ No newline at end of file\n':
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delta -= 1
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fromlen = delta + self.removed
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tolen = delta + self.added
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fp.write('@@ -%d,%d +%d,%d @@%s\n' %
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(self.fromline, fromlen, self.toline, tolen,
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self.proc and (' ' + self.proc)))
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fp.write(''.join(self.before + self.hunk + self.after))
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pretty = write
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def filename(self):
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return self.header.filename()
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def __repr__(self):
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return '<hunk %r@%d>' % (self.filename(), self.fromline)
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def parsepatch(fp):
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"""patch -> [] of headers -> [] of hunks """
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class parser(object):
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"""patch parsing state machine"""
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def __init__(self):
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self.fromline = 0
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self.toline = 0
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self.proc = ''
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self.header = None
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self.context = []
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self.before = []
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self.hunk = []
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self.headers = []
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def addrange(self, limits):
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fromstart, fromend, tostart, toend, proc = limits
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self.fromline = int(fromstart)
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self.toline = int(tostart)
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self.proc = proc
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def addcontext(self, context):
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if self.hunk:
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h = hunk(self.header, self.fromline, self.toline, self.proc,
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self.before, self.hunk, context)
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self.header.hunks.append(h)
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self.fromline += len(self.before) + h.removed
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self.toline += len(self.before) + h.added
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self.before = []
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self.hunk = []
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self.proc = ''
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self.context = context
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def addhunk(self, hunk):
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if self.context:
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self.before = self.context
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self.context = []
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self.hunk = hunk
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def newfile(self, hdr):
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self.addcontext([])
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h = header(hdr)
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self.headers.append(h)
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self.header = h
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def finished(self):
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self.addcontext([])
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return self.headers
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transitions = {
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'file': {'context': addcontext,
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'file': newfile,
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'hunk': addhunk,
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'range': addrange},
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'context': {'file': newfile,
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'hunk': addhunk,
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'range': addrange},
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'hunk': {'context': addcontext,
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'file': newfile,
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'range': addrange},
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'range': {'context': addcontext,
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'hunk': addhunk},
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}
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p = parser()
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state = 'context'
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for newstate, data in scanpatch(fp):
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try:
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p.transitions[state][newstate](p, data)
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except KeyError:
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raise patch.PatchError('unhandled transition: %s -> %s' %
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(state, newstate))
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state = newstate
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return p.finished()
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def filterpatch(ui, headers):
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"""Interactively filter patch chunks into applied-only chunks"""
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def prompt(skipfile, skipall, query, chunk):
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"""prompt query, and process base inputs
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- y/n for the rest of file
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- y/n for the rest
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- ? (help)
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- q (quit)
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Return True/False and possibly updated skipfile and skipall.
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"""
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newpatches = None
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if skipall is not None:
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return skipall, skipfile, skipall, newpatches
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if skipfile is not None:
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return skipfile, skipfile, skipall, newpatches
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while True:
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resps = _('[Ynesfdaq?]')
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choices = (_('&Yes, record this change'),
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_('&No, skip this change'),
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_('&Edit the change manually'),
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_('&Skip remaining changes to this file'),
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_('Record remaining changes to this &file'),
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_('&Done, skip remaining changes and files'),
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_('Record &all changes to all remaining files'),
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_('&Quit, recording no changes'),
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_('&?'))
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r = ui.promptchoice("%s %s" % (query, resps), choices)
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ui.write("\n")
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if r == 8: # ?
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doc = gettext(record.__doc__)
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c = doc.find('::') + 2
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for l in doc[c:].splitlines():
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if l.startswith(' '):
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ui.write(l.strip(), '\n')
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continue
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elif r == 0: # yes
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ret = True
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elif r == 1: # no
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ret = False
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elif r == 2: # Edit patch
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if chunk is None:
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ui.write(_('cannot edit patch for whole file'))
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ui.write("\n")
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continue
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if chunk.header.binary():
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ui.write(_('cannot edit patch for binary file'))
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ui.write("\n")
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continue
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# Patch comment based on the Git one (based on comment at end of
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# http://mercurial.selenic.com/wiki/RecordExtension)
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phelp = '---' + _("""
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To remove '-' lines, make them ' ' lines (context).
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To remove '+' lines, delete them.
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Lines starting with # will be removed from the patch.
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If the patch applies cleanly, the edited hunk will immediately be
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added to the record list. If it does not apply cleanly, a rejects
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file will be generated: you can use that when you try again. If
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all lines of the hunk are removed, then the edit is aborted and
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the hunk is left unchanged.
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""")
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(patchfd, patchfn) = tempfile.mkstemp(prefix="hg-editor-",
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suffix=".diff", text=True)
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ncpatchfp = None
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try:
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# Write the initial patch
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f = os.fdopen(patchfd, "w")
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chunk.header.write(f)
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chunk.write(f)
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f.write('\n'.join(['# ' + i for i in phelp.splitlines()]))
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f.close()
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# Start the editor and wait for it to complete
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editor = ui.geteditor()
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util.system("%s \"%s\"" % (editor, patchfn),
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environ={'HGUSER': ui.username()},
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onerr=util.Abort, errprefix=_("edit failed"),
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out=ui.fout)
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# Remove comment lines
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patchfp = open(patchfn)
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ncpatchfp = cStringIO.StringIO()
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for line in patchfp:
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if not line.startswith('#'):
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ncpatchfp.write(line)
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patchfp.close()
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ncpatchfp.seek(0)
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newpatches = parsepatch(ncpatchfp)
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finally:
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os.unlink(patchfn)
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del ncpatchfp
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# Signal that the chunk shouldn't be applied as-is, but
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# provide the new patch to be used instead.
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ret = False
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elif r == 3: # Skip
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ret = skipfile = False
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elif r == 4: # file (Record remaining)
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ret = skipfile = True
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elif r == 5: # done, skip remaining
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ret = skipall = False
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elif r == 6: # all
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ret = skipall = True
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elif r == 7: # quit
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raise util.Abort(_('user quit'))
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return ret, skipfile, skipall, newpatches
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seen = set()
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applied = {} # 'filename' -> [] of chunks
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skipfile, skipall = None, None
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pos, total = 1, sum(len(h.hunks) for h in headers)
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for h in headers:
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pos += len(h.hunks)
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skipfile = None
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fixoffset = 0
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hdr = ''.join(h.header)
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if hdr in seen:
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continue
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seen.add(hdr)
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if skipall is None:
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h.pretty(ui)
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msg = (_('examine changes to %s?') %
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_(' and ').join(map(repr, h.files())))
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r, skipfile, skipall, np = prompt(skipfile, skipall, msg, None)
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if not r:
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continue
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applied[h.filename()] = [h]
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if h.allhunks():
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applied[h.filename()] += h.hunks
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continue
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for i, chunk in enumerate(h.hunks):
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if skipfile is None and skipall is None:
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chunk.pretty(ui)
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if total == 1:
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msg = _('record this change to %r?') % chunk.filename()
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else:
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idx = pos - len(h.hunks) + i
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msg = _('record change %d/%d to %r?') % (idx, total,
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chunk.filename())
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r, skipfile, skipall, newpatches = prompt(skipfile,
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skipall, msg, chunk)
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if r:
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if fixoffset:
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chunk = copy.copy(chunk)
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chunk.toline += fixoffset
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applied[chunk.filename()].append(chunk)
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elif newpatches is not None:
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for newpatch in newpatches:
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for newhunk in newpatch.hunks:
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if fixoffset:
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newhunk.toline += fixoffset
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applied[newhunk.filename()].append(newhunk)
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else:
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fixoffset += chunk.removed - chunk.added
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return sum([h for h in applied.itervalues()
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if h[0].special() or len(h) > 1], [])
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@command("record",
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# same options as commit + white space diff options
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commands.table['^commit|ci'][1][:] + diffopts,
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_('hg record [OPTION]... [FILE]...'))
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def record(ui, repo, *pats, **opts):
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'''interactively select changes to commit
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If a list of files is omitted, all changes reported by :hg:`status`
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will be candidates for recording.
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See :hg:`help dates` for a list of formats valid for -d/--date.
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You will be prompted for whether to record changes to each
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modified file, and for files with multiple changes, for each
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change to use. For each query, the following responses are
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possible::
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y - record this change
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|
n - skip this change
|
|
|
e - edit this change manually
|
|
|
|
|
|
s - skip remaining changes to this file
|
|
|
f - record remaining changes to this file
|
|
|
|
|
|
d - done, skip remaining changes and files
|
|
|
a - record all changes to all remaining files
|
|
|
q - quit, recording no changes
|
|
|
|
|
|
? - display help
|
|
|
|
|
|
This command is not available when committing a merge.'''
|
|
|
|
|
|
dorecord(ui, repo, commands.commit, 'commit', False, *pats, **opts)
|
|
|
|
|
|
def qrefresh(origfn, ui, repo, *pats, **opts):
|
|
|
if not opts['interactive']:
|
|
|
return origfn(ui, repo, *pats, **opts)
|
|
|
|
|
|
mq = extensions.find('mq')
|
|
|
|
|
|
def committomq(ui, repo, *pats, **opts):
|
|
|
# At this point the working copy contains only changes that
|
|
|
# were accepted. All other changes were reverted.
|
|
|
# We can't pass *pats here since qrefresh will undo all other
|
|
|
# changed files in the patch that aren't in pats.
|
|
|
mq.refresh(ui, repo, **opts)
|
|
|
|
|
|
# backup all changed files
|
|
|
dorecord(ui, repo, committomq, 'qrefresh', True, *pats, **opts)
|
|
|
|
|
|
def qrecord(ui, repo, patch, *pats, **opts):
|
|
|
'''interactively record a new patch
|
|
|
|
|
|
See :hg:`help qnew` & :hg:`help record` for more information and
|
|
|
usage.
|
|
|
'''
|
|
|
|
|
|
try:
|
|
|
mq = extensions.find('mq')
|
|
|
except KeyError:
|
|
|
raise util.Abort(_("'mq' extension not loaded"))
|
|
|
|
|
|
repo.mq.checkpatchname(patch)
|
|
|
|
|
|
def committomq(ui, repo, *pats, **opts):
|
|
|
opts['checkname'] = False
|
|
|
mq.new(ui, repo, patch, *pats, **opts)
|
|
|
|
|
|
dorecord(ui, repo, committomq, 'qnew', False, *pats, **opts)
|
|
|
|
|
|
def qnew(origfn, ui, repo, patch, *args, **opts):
|
|
|
if opts['interactive']:
|
|
|
return qrecord(ui, repo, patch, *args, **opts)
|
|
|
return origfn(ui, repo, patch, *args, **opts)
|
|
|
|
|
|
def dorecord(ui, repo, commitfunc, cmdsuggest, backupall, *pats, **opts):
|
|
|
if not ui.interactive():
|
|
|
raise util.Abort(_('running non-interactively, use %s instead') %
|
|
|
cmdsuggest)
|
|
|
|
|
|
def recordfunc(ui, repo, message, match, opts):
|
|
|
"""This is generic record driver.
|
|
|
|
|
|
Its job is to interactively filter local changes, and
|
|
|
accordingly prepare working directory into a state in which the
|
|
|
job can be delegated to a non-interactive commit command such as
|
|
|
'commit' or 'qrefresh'.
|
|
|
|
|
|
After the actual job is done by non-interactive command, the
|
|
|
working directory is restored to its original state.
|
|
|
|
|
|
In the end we'll record interesting changes, and everything else
|
|
|
will be left in place, so the user can continue working.
|
|
|
"""
|
|
|
|
|
|
merge = len(repo[None].parents()) > 1
|
|
|
if merge:
|
|
|
raise util.Abort(_('cannot partially commit a merge '
|
|
|
'(use "hg commit" instead)'))
|
|
|
|
|
|
changes = repo.status(match=match)[:3]
|
|
|
diffopts = mdiff.diffopts(
|
|
|
git=True, nodates=True,
|
|
|
ignorews=opts.get('ignore_all_space'),
|
|
|
ignorewsamount=opts.get('ignore_space_change'),
|
|
|
ignoreblanklines=opts.get('ignore_blank_lines'))
|
|
|
chunks = patch.diff(repo, changes=changes, opts=diffopts)
|
|
|
fp = cStringIO.StringIO()
|
|
|
fp.write(''.join(chunks))
|
|
|
fp.seek(0)
|
|
|
|
|
|
# 1. filter patch, so we have intending-to apply subset of it
|
|
|
chunks = filterpatch(ui, parsepatch(fp))
|
|
|
del fp
|
|
|
|
|
|
contenders = set()
|
|
|
for h in chunks:
|
|
|
try:
|
|
|
contenders.update(set(h.files()))
|
|
|
except AttributeError:
|
|
|
pass
|
|
|
|
|
|
changed = changes[0] + changes[1] + changes[2]
|
|
|
newfiles = [f for f in changed if f in contenders]
|
|
|
if not newfiles:
|
|
|
ui.status(_('no changes to record\n'))
|
|
|
return 0
|
|
|
|
|
|
modified = set(changes[0])
|
|
|
|
|
|
# 2. backup changed files, so we can restore them in the end
|
|
|
if backupall:
|
|
|
tobackup = changed
|
|
|
else:
|
|
|
tobackup = [f for f in newfiles if f in modified]
|
|
|
|
|
|
backups = {}
|
|
|
if tobackup:
|
|
|
backupdir = repo.join('record-backups')
|
|
|
try:
|
|
|
os.mkdir(backupdir)
|
|
|
except OSError, err:
|
|
|
if err.errno != errno.EEXIST:
|
|
|
raise
|
|
|
try:
|
|
|
# backup continues
|
|
|
for f in tobackup:
|
|
|
fd, tmpname = tempfile.mkstemp(prefix=f.replace('/', '_')+'.',
|
|
|
dir=backupdir)
|
|
|
os.close(fd)
|
|
|
ui.debug('backup %r as %r\n' % (f, tmpname))
|
|
|
util.copyfile(repo.wjoin(f), tmpname)
|
|
|
shutil.copystat(repo.wjoin(f), tmpname)
|
|
|
backups[f] = tmpname
|
|
|
|
|
|
fp = cStringIO.StringIO()
|
|
|
for c in chunks:
|
|
|
if c.filename() in backups:
|
|
|
c.write(fp)
|
|
|
dopatch = fp.tell()
|
|
|
fp.seek(0)
|
|
|
|
|
|
# 3a. apply filtered patch to clean repo (clean)
|
|
|
if backups:
|
|
|
hg.revert(repo, repo.dirstate.p1(),
|
|
|
lambda key: key in backups)
|
|
|
|
|
|
# 3b. (apply)
|
|
|
if dopatch:
|
|
|
try:
|
|
|
ui.debug('applying patch\n')
|
|
|
ui.debug(fp.getvalue())
|
|
|
patch.internalpatch(ui, repo, fp, 1, eolmode=None)
|
|
|
except patch.PatchError, err:
|
|
|
raise util.Abort(str(err))
|
|
|
del fp
|
|
|
|
|
|
# 4. We prepared working directory according to filtered
|
|
|
# patch. Now is the time to delegate the job to
|
|
|
# commit/qrefresh or the like!
|
|
|
|
|
|
# it is important to first chdir to repo root -- we'll call
|
|
|
# a highlevel command with list of pathnames relative to
|
|
|
# repo root
|
|
|
cwd = os.getcwd()
|
|
|
os.chdir(repo.root)
|
|
|
try:
|
|
|
commitfunc(ui, repo, *newfiles, **opts)
|
|
|
finally:
|
|
|
os.chdir(cwd)
|
|
|
|
|
|
return 0
|
|
|
finally:
|
|
|
# 5. finally restore backed-up files
|
|
|
try:
|
|
|
for realname, tmpname in backups.iteritems():
|
|
|
ui.debug('restoring %r to %r\n' % (tmpname, realname))
|
|
|
util.copyfile(tmpname, repo.wjoin(realname))
|
|
|
# Our calls to copystat() here and above are a
|
|
|
# hack to trick any editors that have f open that
|
|
|
# we haven't modified them.
|
|
|
#
|
|
|
# Also note that this racy as an editor could
|
|
|
# notice the file's mtime before we've finished
|
|
|
# writing it.
|
|
|
shutil.copystat(tmpname, repo.wjoin(realname))
|
|
|
os.unlink(tmpname)
|
|
|
if tobackup:
|
|
|
os.rmdir(backupdir)
|
|
|
except OSError:
|
|
|
pass
|
|
|
|
|
|
# wrap ui.write so diff output can be labeled/colorized
|
|
|
def wrapwrite(orig, *args, **kw):
|
|
|
label = kw.pop('label', '')
|
|
|
for chunk, l in patch.difflabel(lambda: args):
|
|
|
orig(chunk, label=label + l)
|
|
|
oldwrite = ui.write
|
|
|
extensions.wrapfunction(ui, 'write', wrapwrite)
|
|
|
try:
|
|
|
return cmdutil.commit(ui, repo, recordfunc, pats, opts)
|
|
|
finally:
|
|
|
ui.write = oldwrite
|
|
|
|
|
|
cmdtable["qrecord"] = \
|
|
|
(qrecord, [], # placeholder until mq is available
|
|
|
_('hg qrecord [OPTION]... PATCH [FILE]...'))
|
|
|
|
|
|
def uisetup(ui):
|
|
|
try:
|
|
|
mq = extensions.find('mq')
|
|
|
except KeyError:
|
|
|
return
|
|
|
|
|
|
cmdtable["qrecord"] = \
|
|
|
(qrecord,
|
|
|
# same options as qnew, but copy them so we don't get
|
|
|
# -i/--interactive for qrecord and add white space diff options
|
|
|
mq.cmdtable['^qnew'][1][:] + diffopts,
|
|
|
_('hg qrecord [OPTION]... PATCH [FILE]...'))
|
|
|
|
|
|
_wrapcmd('qnew', mq.cmdtable, qnew, _("interactively record a new patch"))
|
|
|
_wrapcmd('qrefresh', mq.cmdtable, qrefresh,
|
|
|
_("interactively select changes to refresh"))
|
|
|
|
|
|
def _wrapcmd(cmd, table, wrapfn, msg):
|
|
|
entry = extensions.wrapcommand(table, cmd, wrapfn)
|
|
|
entry[1].append(('i', 'interactive', None, msg))
|
|
|
|
