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# patch.py - patch file parsing routines
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#
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# Copyright 2006 Brendan Cully <brendan@kublai.com>
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# Copyright 2007 Chris Mason <chris.mason@oracle.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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import cStringIO, email.Parser, os, re
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import tempfile, zlib
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from i18n import _
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from node import hex, nullid, short
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import base85, cmdutil, mdiff, util, diffhelpers, copies
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gitre = re.compile('diff --git a/(.*) b/(.*)')
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class PatchError(Exception):
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pass
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class NoHunks(PatchError):
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pass
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# helper functions
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def copyfile(src, dst, basedir):
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abssrc, absdst = [util.canonpath(basedir, basedir, x) for x in [src, dst]]
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if os.path.exists(absdst):
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raise util.Abort(_("cannot create %s: destination already exists") %
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dst)
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dstdir = os.path.dirname(absdst)
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if dstdir and not os.path.isdir(dstdir):
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try:
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os.makedirs(dstdir)
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except IOError:
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raise util.Abort(
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_("cannot create %s: unable to create destination directory")
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% dst)
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util.copyfile(abssrc, absdst)
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# public functions
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def split(stream):
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'''return an iterator of individual patches from a stream'''
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def isheader(line, inheader):
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if inheader and line[0] in (' ', '\t'):
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# continuation
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return True
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if line[0] in (' ', '-', '+'):
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# diff line - don't check for header pattern in there
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return False
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l = line.split(': ', 1)
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return len(l) == 2 and ' ' not in l[0]
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def chunk(lines):
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return cStringIO.StringIO(''.join(lines))
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def hgsplit(stream, cur):
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inheader = True
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for line in stream:
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if not line.strip():
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inheader = False
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if not inheader and line.startswith('# HG changeset patch'):
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yield chunk(cur)
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cur = []
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inheader = True
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cur.append(line)
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if cur:
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yield chunk(cur)
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def mboxsplit(stream, cur):
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for line in stream:
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if line.startswith('From '):
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for c in split(chunk(cur[1:])):
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yield c
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cur = []
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cur.append(line)
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if cur:
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for c in split(chunk(cur[1:])):
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yield c
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def mimesplit(stream, cur):
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def msgfp(m):
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fp = cStringIO.StringIO()
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g = email.Generator.Generator(fp, mangle_from_=False)
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g.flatten(m)
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fp.seek(0)
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return fp
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for line in stream:
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cur.append(line)
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c = chunk(cur)
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m = email.Parser.Parser().parse(c)
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if not m.is_multipart():
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yield msgfp(m)
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else:
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ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
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for part in m.walk():
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ct = part.get_content_type()
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if ct not in ok_types:
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continue
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yield msgfp(part)
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def headersplit(stream, cur):
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inheader = False
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for line in stream:
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if not inheader and isheader(line, inheader):
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yield chunk(cur)
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cur = []
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inheader = True
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if inheader and not isheader(line, inheader):
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inheader = False
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cur.append(line)
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if cur:
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yield chunk(cur)
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def remainder(cur):
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yield chunk(cur)
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class fiter(object):
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def __init__(self, fp):
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self.fp = fp
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def __iter__(self):
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return self
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def next(self):
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l = self.fp.readline()
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if not l:
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raise StopIteration
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return l
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inheader = False
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cur = []
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mimeheaders = ['content-type']
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if not hasattr(stream, 'next'):
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# http responses, for example, have readline but not next
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stream = fiter(stream)
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for line in stream:
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cur.append(line)
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if line.startswith('# HG changeset patch'):
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return hgsplit(stream, cur)
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elif line.startswith('From '):
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return mboxsplit(stream, cur)
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elif isheader(line, inheader):
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inheader = True
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if line.split(':', 1)[0].lower() in mimeheaders:
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# let email parser handle this
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return mimesplit(stream, cur)
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elif line.startswith('--- ') and inheader:
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# No evil headers seen by diff start, split by hand
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return headersplit(stream, cur)
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# Not enough info, keep reading
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# if we are here, we have a very plain patch
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return remainder(cur)
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def extract(ui, fileobj):
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'''extract patch from data read from fileobj.
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patch can be a normal patch or contained in an email message.
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return tuple (filename, message, user, date, node, p1, p2).
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Any item in the returned tuple can be None. If filename is None,
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fileobj did not contain a patch. Caller must unlink filename when done.'''
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# attempt to detect the start of a patch
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# (this heuristic is borrowed from quilt)
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diffre = re.compile(r'^(?:Index:[ \t]|diff[ \t]|RCS file: |'
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r'retrieving revision [0-9]+(\.[0-9]+)*$|'
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r'---[ \t].*?^\+\+\+[ \t]|'
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r'\*\*\*[ \t].*?^---[ \t])', re.MULTILINE|re.DOTALL)
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fd, tmpname = tempfile.mkstemp(prefix='hg-patch-')
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tmpfp = os.fdopen(fd, 'w')
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try:
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msg = email.Parser.Parser().parse(fileobj)
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subject = msg['Subject']
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user = msg['From']
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if not subject and not user:
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# Not an email, restore parsed headers if any
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subject = '\n'.join(': '.join(h) for h in msg.items()) + '\n'
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gitsendmail = 'git-send-email' in msg.get('X-Mailer', '')
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# should try to parse msg['Date']
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date = None
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nodeid = None
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branch = None
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parents = []
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if subject:
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if subject.startswith('[PATCH'):
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pend = subject.find(']')
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if pend >= 0:
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subject = subject[pend + 1:].lstrip()
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subject = subject.replace('\n\t', ' ')
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ui.debug('Subject: %s\n' % subject)
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if user:
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ui.debug('From: %s\n' % user)
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diffs_seen = 0
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ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
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message = ''
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for part in msg.walk():
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content_type = part.get_content_type()
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ui.debug('Content-Type: %s\n' % content_type)
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if content_type not in ok_types:
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continue
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payload = part.get_payload(decode=True)
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m = diffre.search(payload)
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if m:
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hgpatch = False
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ignoretext = False
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ui.debug('found patch at byte %d\n' % m.start(0))
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diffs_seen += 1
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cfp = cStringIO.StringIO()
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for line in payload[:m.start(0)].splitlines():
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if line.startswith('# HG changeset patch'):
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ui.debug('patch generated by hg export\n')
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hgpatch = True
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# drop earlier commit message content
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cfp.seek(0)
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cfp.truncate()
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subject = None
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elif hgpatch:
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if line.startswith('# User '):
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user = line[7:]
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ui.debug('From: %s\n' % user)
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elif line.startswith("# Date "):
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date = line[7:]
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elif line.startswith("# Branch "):
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branch = line[9:]
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elif line.startswith("# Node ID "):
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nodeid = line[10:]
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elif line.startswith("# Parent "):
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parents.append(line[10:])
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elif line == '---' and gitsendmail:
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ignoretext = True
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if not line.startswith('# ') and not ignoretext:
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cfp.write(line)
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cfp.write('\n')
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message = cfp.getvalue()
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if tmpfp:
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tmpfp.write(payload)
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if not payload.endswith('\n'):
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tmpfp.write('\n')
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elif not diffs_seen and message and content_type == 'text/plain':
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message += '\n' + payload
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except:
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tmpfp.close()
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os.unlink(tmpname)
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raise
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if subject and not message.startswith(subject):
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message = '%s\n%s' % (subject, message)
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tmpfp.close()
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if not diffs_seen:
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os.unlink(tmpname)
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return None, message, user, date, branch, None, None, None
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p1 = parents and parents.pop(0) or None
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p2 = parents and parents.pop(0) or None
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return tmpname, message, user, date, branch, nodeid, p1, p2
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GP_PATCH = 1 << 0 # we have to run patch
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GP_FILTER = 1 << 1 # there's some copy/rename operation
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GP_BINARY = 1 << 2 # there's a binary patch
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class patchmeta(object):
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"""Patched file metadata
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'op' is the performed operation within ADD, DELETE, RENAME, MODIFY
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or COPY. 'path' is patched file path. 'oldpath' is set to the
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origin file when 'op' is either COPY or RENAME, None otherwise. If
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file mode is changed, 'mode' is a tuple (islink, isexec) where
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'islink' is True if the file is a symlink and 'isexec' is True if
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the file is executable. Otherwise, 'mode' is None.
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"""
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def __init__(self, path):
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self.path = path
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self.oldpath = None
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self.mode = None
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self.op = 'MODIFY'
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self.lineno = 0
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self.binary = False
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def setmode(self, mode):
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islink = mode & 020000
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isexec = mode & 0100
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self.mode = (islink, isexec)
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def __repr__(self):
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return "<patchmeta %s %r>" % (self.op, self.path)
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def readgitpatch(lr):
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"""extract git-style metadata about patches from <patchname>"""
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# Filter patch for git information
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gp = None
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gitpatches = []
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# Can have a git patch with only metadata, causing patch to complain
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dopatch = 0
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lineno = 0
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for line in lr:
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lineno += 1
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line = line.rstrip(' \r\n')
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if line.startswith('diff --git'):
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m = gitre.match(line)
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if m:
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if gp:
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gitpatches.append(gp)
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dst = m.group(2)
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gp = patchmeta(dst)
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gp.lineno = lineno
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elif gp:
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if line.startswith('--- '):
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if gp.op in ('COPY', 'RENAME'):
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dopatch |= GP_FILTER
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gitpatches.append(gp)
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gp = None
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dopatch |= GP_PATCH
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continue
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if line.startswith('rename from '):
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gp.op = 'RENAME'
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gp.oldpath = line[12:]
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elif line.startswith('rename to '):
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gp.path = line[10:]
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elif line.startswith('copy from '):
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gp.op = 'COPY'
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gp.oldpath = line[10:]
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elif line.startswith('copy to '):
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gp.path = line[8:]
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elif line.startswith('deleted file'):
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gp.op = 'DELETE'
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elif line.startswith('new file mode '):
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gp.op = 'ADD'
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gp.setmode(int(line[-6:], 8))
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elif line.startswith('new mode '):
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gp.setmode(int(line[-6:], 8))
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elif line.startswith('GIT binary patch'):
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dopatch |= GP_BINARY
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gp.binary = True
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if gp:
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gitpatches.append(gp)
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if not gitpatches:
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dopatch = GP_PATCH
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return (dopatch, gitpatches)
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class linereader(object):
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# simple class to allow pushing lines back into the input stream
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def __init__(self, fp, textmode=False):
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self.fp = fp
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self.buf = []
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self.textmode = textmode
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self.eol = None
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def push(self, line):
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if line is not None:
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self.buf.append(line)
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def readline(self):
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if self.buf:
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l = self.buf[0]
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del self.buf[0]
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return l
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l = self.fp.readline()
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if not self.eol:
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if l.endswith('\r\n'):
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self.eol = '\r\n'
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elif l.endswith('\n'):
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self.eol = '\n'
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if self.textmode and l.endswith('\r\n'):
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l = l[:-2] + '\n'
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return l
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def __iter__(self):
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while 1:
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l = self.readline()
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if not l:
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break
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yield l
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# @@ -start,len +start,len @@ or @@ -start +start @@ if len is 1
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unidesc = re.compile('@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@')
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contextdesc = re.compile('(---|\*\*\*) (\d+)(,(\d+))? (---|\*\*\*)')
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eolmodes = ['strict', 'crlf', 'lf', 'auto']
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class patchfile(object):
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def __init__(self, ui, fname, opener, missing=False, eolmode='strict'):
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self.fname = fname
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self.eolmode = eolmode
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self.eol = None
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self.opener = opener
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self.ui = ui
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self.lines = []
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self.exists = False
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self.missing = missing
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if not missing:
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try:
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self.lines = self.readlines(fname)
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self.exists = True
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except IOError:
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pass
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else:
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self.ui.warn(_("unable to find '%s' for patching\n") % self.fname)
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self.hash = {}
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self.dirty = 0
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self.offset = 0
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self.skew = 0
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self.rej = []
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self.fileprinted = False
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self.printfile(False)
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self.hunks = 0
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def readlines(self, fname):
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if os.path.islink(fname):
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return [os.readlink(fname)]
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fp = self.opener(fname, 'r')
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try:
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lr = linereader(fp, self.eolmode != 'strict')
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lines = list(lr)
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self.eol = lr.eol
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return lines
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finally:
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fp.close()
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def writelines(self, fname, lines):
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# Ensure supplied data ends in fname, being a regular file or
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# a symlink. updatedir() will -too magically- take care of
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# setting it to the proper type afterwards.
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islink = os.path.islink(fname)
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if islink:
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|
|
fp = cStringIO.StringIO()
|
|
|
else:
|
|
|
fp = self.opener(fname, 'w')
|
|
|
try:
|
|
|
if self.eolmode == 'auto':
|
|
|
eol = self.eol
|
|
|
elif self.eolmode == 'crlf':
|
|
|
eol = '\r\n'
|
|
|
else:
|
|
|
eol = '\n'
|
|
|
|
|
|
if self.eolmode != 'strict' and eol and eol != '\n':
|
|
|
for l in lines:
|
|
|
if l and l[-1] == '\n':
|
|
|
l = l[:-1] + eol
|
|
|
fp.write(l)
|
|
|
else:
|
|
|
fp.writelines(lines)
|
|
|
if islink:
|
|
|
self.opener.symlink(fp.getvalue(), fname)
|
|
|
finally:
|
|
|
fp.close()
|
|
|
|
|
|
def unlink(self, fname):
|
|
|
os.unlink(fname)
|
|
|
|
|
|
def printfile(self, warn):
|
|
|
if self.fileprinted:
|
|
|
return
|
|
|
if warn or self.ui.verbose:
|
|
|
self.fileprinted = True
|
|
|
s = _("patching file %s\n") % self.fname
|
|
|
if warn:
|
|
|
self.ui.warn(s)
|
|
|
else:
|
|
|
self.ui.note(s)
|
|
|
|
|
|
|
|
|
def findlines(self, l, linenum):
|
|
|
# looks through the hash and finds candidate lines. The
|
|
|
# result is a list of line numbers sorted based on distance
|
|
|
# from linenum
|
|
|
|
|
|
cand = self.hash.get(l, [])
|
|
|
if len(cand) > 1:
|
|
|
# resort our list of potentials forward then back.
|
|
|
cand.sort(key=lambda x: abs(x - linenum))
|
|
|
return cand
|
|
|
|
|
|
def hashlines(self):
|
|
|
self.hash = {}
|
|
|
for x, s in enumerate(self.lines):
|
|
|
self.hash.setdefault(s, []).append(x)
|
|
|
|
|
|
def write_rej(self):
|
|
|
# our rejects are a little different from patch(1). This always
|
|
|
# creates rejects in the same form as the original patch. A file
|
|
|
# header is inserted so that you can run the reject through patch again
|
|
|
# without having to type the filename.
|
|
|
|
|
|
if not self.rej:
|
|
|
return
|
|
|
|
|
|
fname = self.fname + ".rej"
|
|
|
self.ui.warn(
|
|
|
_("%d out of %d hunks FAILED -- saving rejects to file %s\n") %
|
|
|
(len(self.rej), self.hunks, fname))
|
|
|
|
|
|
def rejlines():
|
|
|
base = os.path.basename(self.fname)
|
|
|
yield "--- %s\n+++ %s\n" % (base, base)
|
|
|
for x in self.rej:
|
|
|
for l in x.hunk:
|
|
|
yield l
|
|
|
if l[-1] != '\n':
|
|
|
yield "\n\ No newline at end of file\n"
|
|
|
|
|
|
self.writelines(fname, rejlines())
|
|
|
|
|
|
def write(self, dest=None):
|
|
|
if not self.dirty:
|
|
|
return
|
|
|
if not dest:
|
|
|
dest = self.fname
|
|
|
self.writelines(dest, self.lines)
|
|
|
|
|
|
def close(self):
|
|
|
self.write()
|
|
|
self.write_rej()
|
|
|
|
|
|
def apply(self, h):
|
|
|
if not h.complete():
|
|
|
raise PatchError(_("bad hunk #%d %s (%d %d %d %d)") %
|
|
|
(h.number, h.desc, len(h.a), h.lena, len(h.b),
|
|
|
h.lenb))
|
|
|
|
|
|
self.hunks += 1
|
|
|
|
|
|
if self.missing:
|
|
|
self.rej.append(h)
|
|
|
return -1
|
|
|
|
|
|
if self.exists and h.createfile():
|
|
|
self.ui.warn(_("file %s already exists\n") % self.fname)
|
|
|
self.rej.append(h)
|
|
|
return -1
|
|
|
|
|
|
if isinstance(h, binhunk):
|
|
|
if h.rmfile():
|
|
|
self.unlink(self.fname)
|
|
|
else:
|
|
|
self.lines[:] = h.new()
|
|
|
self.offset += len(h.new())
|
|
|
self.dirty = 1
|
|
|
return 0
|
|
|
|
|
|
horig = h
|
|
|
if (self.eolmode in ('crlf', 'lf')
|
|
|
or self.eolmode == 'auto' and self.eol):
|
|
|
# If new eols are going to be normalized, then normalize
|
|
|
# hunk data before patching. Otherwise, preserve input
|
|
|
# line-endings.
|
|
|
h = h.getnormalized()
|
|
|
|
|
|
# fast case first, no offsets, no fuzz
|
|
|
old = h.old()
|
|
|
# patch starts counting at 1 unless we are adding the file
|
|
|
if h.starta == 0:
|
|
|
start = 0
|
|
|
else:
|
|
|
start = h.starta + self.offset - 1
|
|
|
orig_start = start
|
|
|
# if there's skew we want to emit the "(offset %d lines)" even
|
|
|
# when the hunk cleanly applies at start + skew, so skip the
|
|
|
# fast case code
|
|
|
if self.skew == 0 and diffhelpers.testhunk(old, self.lines, start) == 0:
|
|
|
if h.rmfile():
|
|
|
self.unlink(self.fname)
|
|
|
else:
|
|
|
self.lines[start : start + h.lena] = h.new()
|
|
|
self.offset += h.lenb - h.lena
|
|
|
self.dirty = 1
|
|
|
return 0
|
|
|
|
|
|
# ok, we couldn't match the hunk. Lets look for offsets and fuzz it
|
|
|
self.hashlines()
|
|
|
if h.hunk[-1][0] != ' ':
|
|
|
# if the hunk tried to put something at the bottom of the file
|
|
|
# override the start line and use eof here
|
|
|
search_start = len(self.lines)
|
|
|
else:
|
|
|
search_start = orig_start + self.skew
|
|
|
|
|
|
for fuzzlen in xrange(3):
|
|
|
for toponly in [True, False]:
|
|
|
old = h.old(fuzzlen, toponly)
|
|
|
|
|
|
cand = self.findlines(old[0][1:], search_start)
|
|
|
for l in cand:
|
|
|
if diffhelpers.testhunk(old, self.lines, l) == 0:
|
|
|
newlines = h.new(fuzzlen, toponly)
|
|
|
self.lines[l : l + len(old)] = newlines
|
|
|
self.offset += len(newlines) - len(old)
|
|
|
self.skew = l - orig_start
|
|
|
self.dirty = 1
|
|
|
offset = l - orig_start - fuzzlen
|
|
|
if fuzzlen:
|
|
|
msg = _("Hunk #%d succeeded at %d "
|
|
|
"with fuzz %d "
|
|
|
"(offset %d lines).\n")
|
|
|
self.printfile(True)
|
|
|
self.ui.warn(msg %
|
|
|
(h.number, l + 1, fuzzlen, offset))
|
|
|
else:
|
|
|
msg = _("Hunk #%d succeeded at %d "
|
|
|
"(offset %d lines).\n")
|
|
|
self.ui.note(msg % (h.number, l + 1, offset))
|
|
|
return fuzzlen
|
|
|
self.printfile(True)
|
|
|
self.ui.warn(_("Hunk #%d FAILED at %d\n") % (h.number, orig_start))
|
|
|
self.rej.append(horig)
|
|
|
return -1
|
|
|
|
|
|
class hunk(object):
|
|
|
def __init__(self, desc, num, lr, context, create=False, remove=False):
|
|
|
self.number = num
|
|
|
self.desc = desc
|
|
|
self.hunk = [desc]
|
|
|
self.a = []
|
|
|
self.b = []
|
|
|
self.starta = self.lena = None
|
|
|
self.startb = self.lenb = None
|
|
|
if lr is not None:
|
|
|
if context:
|
|
|
self.read_context_hunk(lr)
|
|
|
else:
|
|
|
self.read_unified_hunk(lr)
|
|
|
self.create = create
|
|
|
self.remove = remove and not create
|
|
|
|
|
|
def getnormalized(self):
|
|
|
"""Return a copy with line endings normalized to LF."""
|
|
|
|
|
|
def normalize(lines):
|
|
|
nlines = []
|
|
|
for line in lines:
|
|
|
if line.endswith('\r\n'):
|
|
|
line = line[:-2] + '\n'
|
|
|
nlines.append(line)
|
|
|
return nlines
|
|
|
|
|
|
# Dummy object, it is rebuilt manually
|
|
|
nh = hunk(self.desc, self.number, None, None, False, False)
|
|
|
nh.number = self.number
|
|
|
nh.desc = self.desc
|
|
|
nh.hunk = self.hunk
|
|
|
nh.a = normalize(self.a)
|
|
|
nh.b = normalize(self.b)
|
|
|
nh.starta = self.starta
|
|
|
nh.startb = self.startb
|
|
|
nh.lena = self.lena
|
|
|
nh.lenb = self.lenb
|
|
|
nh.create = self.create
|
|
|
nh.remove = self.remove
|
|
|
return nh
|
|
|
|
|
|
def read_unified_hunk(self, lr):
|
|
|
m = unidesc.match(self.desc)
|
|
|
if not m:
|
|
|
raise PatchError(_("bad hunk #%d") % self.number)
|
|
|
self.starta, foo, self.lena, self.startb, foo2, self.lenb = m.groups()
|
|
|
if self.lena is None:
|
|
|
self.lena = 1
|
|
|
else:
|
|
|
self.lena = int(self.lena)
|
|
|
if self.lenb is None:
|
|
|
self.lenb = 1
|
|
|
else:
|
|
|
self.lenb = int(self.lenb)
|
|
|
self.starta = int(self.starta)
|
|
|
self.startb = int(self.startb)
|
|
|
diffhelpers.addlines(lr, self.hunk, self.lena, self.lenb, self.a, self.b)
|
|
|
# if we hit eof before finishing out the hunk, the last line will
|
|
|
# be zero length. Lets try to fix it up.
|
|
|
while len(self.hunk[-1]) == 0:
|
|
|
del self.hunk[-1]
|
|
|
del self.a[-1]
|
|
|
del self.b[-1]
|
|
|
self.lena -= 1
|
|
|
self.lenb -= 1
|
|
|
|
|
|
def read_context_hunk(self, lr):
|
|
|
self.desc = lr.readline()
|
|
|
m = contextdesc.match(self.desc)
|
|
|
if not m:
|
|
|
raise PatchError(_("bad hunk #%d") % self.number)
|
|
|
foo, self.starta, foo2, aend, foo3 = m.groups()
|
|
|
self.starta = int(self.starta)
|
|
|
if aend is None:
|
|
|
aend = self.starta
|
|
|
self.lena = int(aend) - self.starta
|
|
|
if self.starta:
|
|
|
self.lena += 1
|
|
|
for x in xrange(self.lena):
|
|
|
l = lr.readline()
|
|
|
if l.startswith('---'):
|
|
|
lr.push(l)
|
|
|
break
|
|
|
s = l[2:]
|
|
|
if l.startswith('- ') or l.startswith('! '):
|
|
|
u = '-' + s
|
|
|
elif l.startswith(' '):
|
|
|
u = ' ' + s
|
|
|
else:
|
|
|
raise PatchError(_("bad hunk #%d old text line %d") %
|
|
|
(self.number, x))
|
|
|
self.a.append(u)
|
|
|
self.hunk.append(u)
|
|
|
|
|
|
l = lr.readline()
|
|
|
if l.startswith('\ '):
|
|
|
s = self.a[-1][:-1]
|
|
|
self.a[-1] = s
|
|
|
self.hunk[-1] = s
|
|
|
l = lr.readline()
|
|
|
m = contextdesc.match(l)
|
|
|
if not m:
|
|
|
raise PatchError(_("bad hunk #%d") % self.number)
|
|
|
foo, self.startb, foo2, bend, foo3 = m.groups()
|
|
|
self.startb = int(self.startb)
|
|
|
if bend is None:
|
|
|
bend = self.startb
|
|
|
self.lenb = int(bend) - self.startb
|
|
|
if self.startb:
|
|
|
self.lenb += 1
|
|
|
hunki = 1
|
|
|
for x in xrange(self.lenb):
|
|
|
l = lr.readline()
|
|
|
if l.startswith('\ '):
|
|
|
s = self.b[-1][:-1]
|
|
|
self.b[-1] = s
|
|
|
self.hunk[hunki - 1] = s
|
|
|
continue
|
|
|
if not l:
|
|
|
lr.push(l)
|
|
|
break
|
|
|
s = l[2:]
|
|
|
if l.startswith('+ ') or l.startswith('! '):
|
|
|
u = '+' + s
|
|
|
elif l.startswith(' '):
|
|
|
u = ' ' + s
|
|
|
elif len(self.b) == 0:
|
|
|
# this can happen when the hunk does not add any lines
|
|
|
lr.push(l)
|
|
|
break
|
|
|
else:
|
|
|
raise PatchError(_("bad hunk #%d old text line %d") %
|
|
|
(self.number, x))
|
|
|
self.b.append(s)
|
|
|
while True:
|
|
|
if hunki >= len(self.hunk):
|
|
|
h = ""
|
|
|
else:
|
|
|
h = self.hunk[hunki]
|
|
|
hunki += 1
|
|
|
if h == u:
|
|
|
break
|
|
|
elif h.startswith('-'):
|
|
|
continue
|
|
|
else:
|
|
|
self.hunk.insert(hunki - 1, u)
|
|
|
break
|
|
|
|
|
|
if not self.a:
|
|
|
# this happens when lines were only added to the hunk
|
|
|
for x in self.hunk:
|
|
|
if x.startswith('-') or x.startswith(' '):
|
|
|
self.a.append(x)
|
|
|
if not self.b:
|
|
|
# this happens when lines were only deleted from the hunk
|
|
|
for x in self.hunk:
|
|
|
if x.startswith('+') or x.startswith(' '):
|
|
|
self.b.append(x[1:])
|
|
|
# @@ -start,len +start,len @@
|
|
|
self.desc = "@@ -%d,%d +%d,%d @@\n" % (self.starta, self.lena,
|
|
|
self.startb, self.lenb)
|
|
|
self.hunk[0] = self.desc
|
|
|
|
|
|
def fix_newline(self):
|
|
|
diffhelpers.fix_newline(self.hunk, self.a, self.b)
|
|
|
|
|
|
def complete(self):
|
|
|
return len(self.a) == self.lena and len(self.b) == self.lenb
|
|
|
|
|
|
def createfile(self):
|
|
|
return self.starta == 0 and self.lena == 0 and self.create
|
|
|
|
|
|
def rmfile(self):
|
|
|
return self.startb == 0 and self.lenb == 0 and self.remove
|
|
|
|
|
|
def fuzzit(self, l, fuzz, toponly):
|
|
|
# this removes context lines from the top and bottom of list 'l'. It
|
|
|
# checks the hunk to make sure only context lines are removed, and then
|
|
|
# returns a new shortened list of lines.
|
|
|
fuzz = min(fuzz, len(l)-1)
|
|
|
if fuzz:
|
|
|
top = 0
|
|
|
bot = 0
|
|
|
hlen = len(self.hunk)
|
|
|
for x in xrange(hlen - 1):
|
|
|
# the hunk starts with the @@ line, so use x+1
|
|
|
if self.hunk[x + 1][0] == ' ':
|
|
|
top += 1
|
|
|
else:
|
|
|
break
|
|
|
if not toponly:
|
|
|
for x in xrange(hlen - 1):
|
|
|
if self.hunk[hlen - bot - 1][0] == ' ':
|
|
|
bot += 1
|
|
|
else:
|
|
|
break
|
|
|
|
|
|
# top and bot now count context in the hunk
|
|
|
# adjust them if either one is short
|
|
|
context = max(top, bot, 3)
|
|
|
if bot < context:
|
|
|
bot = max(0, fuzz - (context - bot))
|
|
|
else:
|
|
|
bot = min(fuzz, bot)
|
|
|
if top < context:
|
|
|
top = max(0, fuzz - (context - top))
|
|
|
else:
|
|
|
top = min(fuzz, top)
|
|
|
|
|
|
return l[top:len(l)-bot]
|
|
|
return l
|
|
|
|
|
|
def old(self, fuzz=0, toponly=False):
|
|
|
return self.fuzzit(self.a, fuzz, toponly)
|
|
|
|
|
|
def new(self, fuzz=0, toponly=False):
|
|
|
return self.fuzzit(self.b, fuzz, toponly)
|
|
|
|
|
|
class binhunk:
|
|
|
'A binary patch file. Only understands literals so far.'
|
|
|
def __init__(self, gitpatch):
|
|
|
self.gitpatch = gitpatch
|
|
|
self.text = None
|
|
|
self.hunk = ['GIT binary patch\n']
|
|
|
|
|
|
def createfile(self):
|
|
|
return self.gitpatch.op in ('ADD', 'RENAME', 'COPY')
|
|
|
|
|
|
def rmfile(self):
|
|
|
return self.gitpatch.op == 'DELETE'
|
|
|
|
|
|
def complete(self):
|
|
|
return self.text is not None
|
|
|
|
|
|
def new(self):
|
|
|
return [self.text]
|
|
|
|
|
|
def extract(self, lr):
|
|
|
line = lr.readline()
|
|
|
self.hunk.append(line)
|
|
|
while line and not line.startswith('literal '):
|
|
|
line = lr.readline()
|
|
|
self.hunk.append(line)
|
|
|
if not line:
|
|
|
raise PatchError(_('could not extract binary patch'))
|
|
|
size = int(line[8:].rstrip())
|
|
|
dec = []
|
|
|
line = lr.readline()
|
|
|
self.hunk.append(line)
|
|
|
while len(line) > 1:
|
|
|
l = line[0]
|
|
|
if l <= 'Z' and l >= 'A':
|
|
|
l = ord(l) - ord('A') + 1
|
|
|
else:
|
|
|
l = ord(l) - ord('a') + 27
|
|
|
dec.append(base85.b85decode(line[1:-1])[:l])
|
|
|
line = lr.readline()
|
|
|
self.hunk.append(line)
|
|
|
text = zlib.decompress(''.join(dec))
|
|
|
if len(text) != size:
|
|
|
raise PatchError(_('binary patch is %d bytes, not %d') %
|
|
|
len(text), size)
|
|
|
self.text = text
|
|
|
|
|
|
def parsefilename(str):
|
|
|
# --- filename \t|space stuff
|
|
|
s = str[4:].rstrip('\r\n')
|
|
|
i = s.find('\t')
|
|
|
if i < 0:
|
|
|
i = s.find(' ')
|
|
|
if i < 0:
|
|
|
return s
|
|
|
return s[:i]
|
|
|
|
|
|
def pathstrip(path, strip):
|
|
|
pathlen = len(path)
|
|
|
i = 0
|
|
|
if strip == 0:
|
|
|
return '', path.rstrip()
|
|
|
count = strip
|
|
|
while count > 0:
|
|
|
i = path.find('/', i)
|
|
|
if i == -1:
|
|
|
raise PatchError(_("unable to strip away %d of %d dirs from %s") %
|
|
|
(count, strip, path))
|
|
|
i += 1
|
|
|
# consume '//' in the path
|
|
|
while i < pathlen - 1 and path[i] == '/':
|
|
|
i += 1
|
|
|
count -= 1
|
|
|
return path[:i].lstrip(), path[i:].rstrip()
|
|
|
|
|
|
def selectfile(afile_orig, bfile_orig, hunk, strip):
|
|
|
nulla = afile_orig == "/dev/null"
|
|
|
nullb = bfile_orig == "/dev/null"
|
|
|
abase, afile = pathstrip(afile_orig, strip)
|
|
|
gooda = not nulla and util.lexists(afile)
|
|
|
bbase, bfile = pathstrip(bfile_orig, strip)
|
|
|
if afile == bfile:
|
|
|
goodb = gooda
|
|
|
else:
|
|
|
goodb = not nullb and os.path.exists(bfile)
|
|
|
createfunc = hunk.createfile
|
|
|
missing = not goodb and not gooda and not createfunc()
|
|
|
|
|
|
# some diff programs apparently produce create patches where the
|
|
|
# afile is not /dev/null, but afile starts with bfile
|
|
|
abasedir = afile[:afile.rfind('/') + 1]
|
|
|
bbasedir = bfile[:bfile.rfind('/') + 1]
|
|
|
if missing and abasedir == bbasedir and afile.startswith(bfile):
|
|
|
# this isn't very pretty
|
|
|
hunk.create = True
|
|
|
if createfunc():
|
|
|
missing = False
|
|
|
else:
|
|
|
hunk.create = False
|
|
|
|
|
|
# If afile is "a/b/foo" and bfile is "a/b/foo.orig" we assume the
|
|
|
# diff is between a file and its backup. In this case, the original
|
|
|
# file should be patched (see original mpatch code).
|
|
|
isbackup = (abase == bbase and bfile.startswith(afile))
|
|
|
fname = None
|
|
|
if not missing:
|
|
|
if gooda and goodb:
|
|
|
fname = isbackup and afile or bfile
|
|
|
elif gooda:
|
|
|
fname = afile
|
|
|
|
|
|
if not fname:
|
|
|
if not nullb:
|
|
|
fname = isbackup and afile or bfile
|
|
|
elif not nulla:
|
|
|
fname = afile
|
|
|
else:
|
|
|
raise PatchError(_("undefined source and destination files"))
|
|
|
|
|
|
return fname, missing
|
|
|
|
|
|
def scangitpatch(lr, firstline):
|
|
|
"""
|
|
|
Git patches can emit:
|
|
|
- rename a to b
|
|
|
- change b
|
|
|
- copy a to c
|
|
|
- change c
|
|
|
|
|
|
We cannot apply this sequence as-is, the renamed 'a' could not be
|
|
|
found for it would have been renamed already. And we cannot copy
|
|
|
from 'b' instead because 'b' would have been changed already. So
|
|
|
we scan the git patch for copy and rename commands so we can
|
|
|
perform the copies ahead of time.
|
|
|
"""
|
|
|
pos = 0
|
|
|
try:
|
|
|
pos = lr.fp.tell()
|
|
|
fp = lr.fp
|
|
|
except IOError:
|
|
|
fp = cStringIO.StringIO(lr.fp.read())
|
|
|
gitlr = linereader(fp, lr.textmode)
|
|
|
gitlr.push(firstline)
|
|
|
(dopatch, gitpatches) = readgitpatch(gitlr)
|
|
|
fp.seek(pos)
|
|
|
return dopatch, gitpatches
|
|
|
|
|
|
def iterhunks(ui, fp, sourcefile=None):
|
|
|
"""Read a patch and yield the following events:
|
|
|
- ("file", afile, bfile, firsthunk): select a new target file.
|
|
|
- ("hunk", hunk): a new hunk is ready to be applied, follows a
|
|
|
"file" event.
|
|
|
- ("git", gitchanges): current diff is in git format, gitchanges
|
|
|
maps filenames to gitpatch records. Unique event.
|
|
|
"""
|
|
|
changed = {}
|
|
|
current_hunk = None
|
|
|
afile = ""
|
|
|
bfile = ""
|
|
|
state = None
|
|
|
hunknum = 0
|
|
|
emitfile = False
|
|
|
git = False
|
|
|
|
|
|
# our states
|
|
|
BFILE = 1
|
|
|
context = None
|
|
|
lr = linereader(fp)
|
|
|
# gitworkdone is True if a git operation (copy, rename, ...) was
|
|
|
# performed already for the current file. Useful when the file
|
|
|
# section may have no hunk.
|
|
|
gitworkdone = False
|
|
|
empty = None
|
|
|
|
|
|
while True:
|
|
|
newfile = newgitfile = False
|
|
|
x = lr.readline()
|
|
|
if not x:
|
|
|
break
|
|
|
if current_hunk:
|
|
|
if x.startswith('\ '):
|
|
|
current_hunk.fix_newline()
|
|
|
yield 'hunk', current_hunk
|
|
|
current_hunk = None
|
|
|
empty = False
|
|
|
if ((sourcefile or state == BFILE) and ((not context and x[0] == '@') or
|
|
|
((context is not False) and x.startswith('***************')))):
|
|
|
try:
|
|
|
if context is None and x.startswith('***************'):
|
|
|
context = True
|
|
|
gpatch = changed.get(bfile)
|
|
|
create = afile == '/dev/null' or gpatch and gpatch.op == 'ADD'
|
|
|
remove = bfile == '/dev/null' or gpatch and gpatch.op == 'DELETE'
|
|
|
current_hunk = hunk(x, hunknum + 1, lr, context, create, remove)
|
|
|
except PatchError, err:
|
|
|
ui.debug(err)
|
|
|
current_hunk = None
|
|
|
continue
|
|
|
hunknum += 1
|
|
|
if emitfile:
|
|
|
emitfile = False
|
|
|
yield 'file', (afile, bfile, current_hunk)
|
|
|
empty = False
|
|
|
elif state == BFILE and x.startswith('GIT binary patch'):
|
|
|
current_hunk = binhunk(changed[bfile])
|
|
|
hunknum += 1
|
|
|
if emitfile:
|
|
|
emitfile = False
|
|
|
yield 'file', ('a/' + afile, 'b/' + bfile, current_hunk)
|
|
|
empty = False
|
|
|
current_hunk.extract(lr)
|
|
|
elif x.startswith('diff --git'):
|
|
|
# check for git diff, scanning the whole patch file if needed
|
|
|
m = gitre.match(x)
|
|
|
gitworkdone = False
|
|
|
if m:
|
|
|
afile, bfile = m.group(1, 2)
|
|
|
if not git:
|
|
|
git = True
|
|
|
gitpatches = scangitpatch(lr, x)[1]
|
|
|
yield 'git', gitpatches
|
|
|
for gp in gitpatches:
|
|
|
changed[gp.path] = gp
|
|
|
# else error?
|
|
|
# copy/rename + modify should modify target, not source
|
|
|
gp = changed.get(bfile)
|
|
|
if gp and (gp.op in ('COPY', 'DELETE', 'RENAME', 'ADD')
|
|
|
or gp.mode):
|
|
|
afile = bfile
|
|
|
gitworkdone = True
|
|
|
newgitfile = True
|
|
|
elif x.startswith('---'):
|
|
|
# check for a unified diff
|
|
|
l2 = lr.readline()
|
|
|
if not l2.startswith('+++'):
|
|
|
lr.push(l2)
|
|
|
continue
|
|
|
newfile = True
|
|
|
context = False
|
|
|
afile = parsefilename(x)
|
|
|
bfile = parsefilename(l2)
|
|
|
elif x.startswith('***'):
|
|
|
# check for a context diff
|
|
|
l2 = lr.readline()
|
|
|
if not l2.startswith('---'):
|
|
|
lr.push(l2)
|
|
|
continue
|
|
|
l3 = lr.readline()
|
|
|
lr.push(l3)
|
|
|
if not l3.startswith("***************"):
|
|
|
lr.push(l2)
|
|
|
continue
|
|
|
newfile = True
|
|
|
context = True
|
|
|
afile = parsefilename(x)
|
|
|
bfile = parsefilename(l2)
|
|
|
|
|
|
if newfile:
|
|
|
if empty:
|
|
|
raise NoHunks
|
|
|
empty = not gitworkdone
|
|
|
gitworkdone = False
|
|
|
|
|
|
if newgitfile or newfile:
|
|
|
emitfile = True
|
|
|
state = BFILE
|
|
|
hunknum = 0
|
|
|
if current_hunk:
|
|
|
if current_hunk.complete():
|
|
|
yield 'hunk', current_hunk
|
|
|
empty = False
|
|
|
else:
|
|
|
raise PatchError(_("malformed patch %s %s") % (afile,
|
|
|
current_hunk.desc))
|
|
|
|
|
|
if (empty is None and not gitworkdone) or empty:
|
|
|
raise NoHunks
|
|
|
|
|
|
|
|
|
def applydiff(ui, fp, changed, strip=1, sourcefile=None, eolmode='strict'):
|
|
|
"""Reads a patch from fp and tries to apply it.
|
|
|
|
|
|
The dict 'changed' is filled in with all of the filenames changed
|
|
|
by the patch. Returns 0 for a clean patch, -1 if any rejects were
|
|
|
found and 1 if there was any fuzz.
|
|
|
|
|
|
If 'eolmode' is 'strict', the patch content and patched file are
|
|
|
read in binary mode. Otherwise, line endings are ignored when
|
|
|
patching then normalized according to 'eolmode'.
|
|
|
|
|
|
Callers probably want to call 'updatedir' after this to apply
|
|
|
certain categories of changes not done by this function.
|
|
|
"""
|
|
|
return _applydiff(
|
|
|
ui, fp, patchfile, copyfile,
|
|
|
changed, strip=strip, sourcefile=sourcefile, eolmode=eolmode)
|
|
|
|
|
|
|
|
|
def _applydiff(ui, fp, patcher, copyfn, changed, strip=1,
|
|
|
sourcefile=None, eolmode='strict'):
|
|
|
rejects = 0
|
|
|
err = 0
|
|
|
current_file = None
|
|
|
cwd = os.getcwd()
|
|
|
opener = util.opener(cwd)
|
|
|
|
|
|
def closefile():
|
|
|
if not current_file:
|
|
|
return 0
|
|
|
current_file.close()
|
|
|
return len(current_file.rej)
|
|
|
|
|
|
for state, values in iterhunks(ui, fp, sourcefile):
|
|
|
if state == 'hunk':
|
|
|
if not current_file:
|
|
|
continue
|
|
|
ret = current_file.apply(values)
|
|
|
if ret >= 0:
|
|
|
changed.setdefault(current_file.fname, None)
|
|
|
if ret > 0:
|
|
|
err = 1
|
|
|
elif state == 'file':
|
|
|
rejects += closefile()
|
|
|
afile, bfile, first_hunk = values
|
|
|
try:
|
|
|
if sourcefile:
|
|
|
current_file = patcher(ui, sourcefile, opener,
|
|
|
eolmode=eolmode)
|
|
|
else:
|
|
|
current_file, missing = selectfile(afile, bfile,
|
|
|
first_hunk, strip)
|
|
|
current_file = patcher(ui, current_file, opener,
|
|
|
missing=missing, eolmode=eolmode)
|
|
|
except PatchError, err:
|
|
|
ui.warn(str(err) + '\n')
|
|
|
current_file = None
|
|
|
rejects += 1
|
|
|
continue
|
|
|
elif state == 'git':
|
|
|
for gp in values:
|
|
|
gp.path = pathstrip(gp.path, strip - 1)[1]
|
|
|
if gp.oldpath:
|
|
|
gp.oldpath = pathstrip(gp.oldpath, strip - 1)[1]
|
|
|
if gp.op in ('COPY', 'RENAME'):
|
|
|
copyfn(gp.oldpath, gp.path, cwd)
|
|
|
changed[gp.path] = gp
|
|
|
else:
|
|
|
raise util.Abort(_('unsupported parser state: %s') % state)
|
|
|
|
|
|
rejects += closefile()
|
|
|
|
|
|
if rejects:
|
|
|
return -1
|
|
|
return err
|
|
|
|
|
|
def updatedir(ui, repo, patches, similarity=0):
|
|
|
'''Update dirstate after patch application according to metadata'''
|
|
|
if not patches:
|
|
|
return
|
|
|
copies = []
|
|
|
removes = set()
|
|
|
cfiles = patches.keys()
|
|
|
cwd = repo.getcwd()
|
|
|
if cwd:
|
|
|
cfiles = [util.pathto(repo.root, cwd, f) for f in patches.keys()]
|
|
|
for f in patches:
|
|
|
gp = patches[f]
|
|
|
if not gp:
|
|
|
continue
|
|
|
if gp.op == 'RENAME':
|
|
|
copies.append((gp.oldpath, gp.path))
|
|
|
removes.add(gp.oldpath)
|
|
|
elif gp.op == 'COPY':
|
|
|
copies.append((gp.oldpath, gp.path))
|
|
|
elif gp.op == 'DELETE':
|
|
|
removes.add(gp.path)
|
|
|
for src, dst in copies:
|
|
|
repo.copy(src, dst)
|
|
|
if (not similarity) and removes:
|
|
|
repo.remove(sorted(removes), True)
|
|
|
for f in patches:
|
|
|
gp = patches[f]
|
|
|
if gp and gp.mode:
|
|
|
islink, isexec = gp.mode
|
|
|
dst = repo.wjoin(gp.path)
|
|
|
# patch won't create empty files
|
|
|
if gp.op == 'ADD' and not os.path.exists(dst):
|
|
|
flags = (isexec and 'x' or '') + (islink and 'l' or '')
|
|
|
repo.wwrite(gp.path, '', flags)
|
|
|
util.set_flags(dst, islink, isexec)
|
|
|
cmdutil.addremove(repo, cfiles, similarity=similarity)
|
|
|
files = patches.keys()
|
|
|
files.extend([r for r in removes if r not in files])
|
|
|
return sorted(files)
|
|
|
|
|
|
def externalpatch(patcher, args, patchname, ui, strip, cwd, files):
|
|
|
"""use <patcher> to apply <patchname> to the working directory.
|
|
|
returns whether patch was applied with fuzz factor."""
|
|
|
|
|
|
fuzz = False
|
|
|
if cwd:
|
|
|
args.append('-d %s' % util.shellquote(cwd))
|
|
|
fp = util.popen('%s %s -p%d < %s' % (patcher, ' '.join(args), strip,
|
|
|
util.shellquote(patchname)))
|
|
|
|
|
|
for line in fp:
|
|
|
line = line.rstrip()
|
|
|
ui.note(line + '\n')
|
|
|
if line.startswith('patching file '):
|
|
|
pf = util.parse_patch_output(line)
|
|
|
printed_file = False
|
|
|
files.setdefault(pf, None)
|
|
|
elif line.find('with fuzz') >= 0:
|
|
|
fuzz = True
|
|
|
if not printed_file:
|
|
|
ui.warn(pf + '\n')
|
|
|
printed_file = True
|
|
|
ui.warn(line + '\n')
|
|
|
elif line.find('saving rejects to file') >= 0:
|
|
|
ui.warn(line + '\n')
|
|
|
elif line.find('FAILED') >= 0:
|
|
|
if not printed_file:
|
|
|
ui.warn(pf + '\n')
|
|
|
printed_file = True
|
|
|
ui.warn(line + '\n')
|
|
|
code = fp.close()
|
|
|
if code:
|
|
|
raise PatchError(_("patch command failed: %s") %
|
|
|
util.explain_exit(code)[0])
|
|
|
return fuzz
|
|
|
|
|
|
def internalpatch(patchobj, ui, strip, cwd, files=None, eolmode='strict'):
|
|
|
"""use builtin patch to apply <patchobj> to the working directory.
|
|
|
returns whether patch was applied with fuzz factor."""
|
|
|
|
|
|
if files is None:
|
|
|
files = {}
|
|
|
if eolmode is None:
|
|
|
eolmode = ui.config('patch', 'eol', 'strict')
|
|
|
if eolmode.lower() not in eolmodes:
|
|
|
raise util.Abort(_('Unsupported line endings type: %s') % eolmode)
|
|
|
eolmode = eolmode.lower()
|
|
|
|
|
|
try:
|
|
|
fp = open(patchobj, 'rb')
|
|
|
except TypeError:
|
|
|
fp = patchobj
|
|
|
if cwd:
|
|
|
curdir = os.getcwd()
|
|
|
os.chdir(cwd)
|
|
|
try:
|
|
|
ret = applydiff(ui, fp, files, strip=strip, eolmode=eolmode)
|
|
|
finally:
|
|
|
if cwd:
|
|
|
os.chdir(curdir)
|
|
|
if fp != patchobj:
|
|
|
fp.close()
|
|
|
if ret < 0:
|
|
|
raise PatchError
|
|
|
return ret > 0
|
|
|
|
|
|
def patch(patchname, ui, strip=1, cwd=None, files=None, eolmode='strict'):
|
|
|
"""Apply <patchname> to the working directory.
|
|
|
|
|
|
'eolmode' specifies how end of lines should be handled. It can be:
|
|
|
- 'strict': inputs are read in binary mode, EOLs are preserved
|
|
|
- 'crlf': EOLs are ignored when patching and reset to CRLF
|
|
|
- 'lf': EOLs are ignored when patching and reset to LF
|
|
|
- None: get it from user settings, default to 'strict'
|
|
|
'eolmode' is ignored when using an external patcher program.
|
|
|
|
|
|
Returns whether patch was applied with fuzz factor.
|
|
|
"""
|
|
|
patcher = ui.config('ui', 'patch')
|
|
|
args = []
|
|
|
if files is None:
|
|
|
files = {}
|
|
|
try:
|
|
|
if patcher:
|
|
|
return externalpatch(patcher, args, patchname, ui, strip, cwd,
|
|
|
files)
|
|
|
else:
|
|
|
try:
|
|
|
return internalpatch(patchname, ui, strip, cwd, files, eolmode)
|
|
|
except NoHunks:
|
|
|
ui.warn(_('internal patcher failed\n'
|
|
|
'please report details to '
|
|
|
'http://mercurial.selenic.com/bts/\n'
|
|
|
'or mercurial@selenic.com\n'))
|
|
|
patcher = (util.find_exe('gpatch') or util.find_exe('patch')
|
|
|
or 'patch')
|
|
|
ui.debug('no valid hunks found; trying with %r instead\n' %
|
|
|
patcher)
|
|
|
if util.needbinarypatch():
|
|
|
args.append('--binary')
|
|
|
return externalpatch(patcher, args, patchname, ui, strip, cwd,
|
|
|
files)
|
|
|
except PatchError, err:
|
|
|
s = str(err)
|
|
|
if s:
|
|
|
raise util.Abort(s)
|
|
|
else:
|
|
|
raise util.Abort(_('patch failed to apply'))
|
|
|
|
|
|
def b85diff(to, tn):
|
|
|
'''print base85-encoded binary diff'''
|
|
|
def gitindex(text):
|
|
|
if not text:
|
|
|
return '0' * 40
|
|
|
l = len(text)
|
|
|
s = util.sha1('blob %d\0' % l)
|
|
|
s.update(text)
|
|
|
return s.hexdigest()
|
|
|
|
|
|
def fmtline(line):
|
|
|
l = len(line)
|
|
|
if l <= 26:
|
|
|
l = chr(ord('A') + l - 1)
|
|
|
else:
|
|
|
l = chr(l - 26 + ord('a') - 1)
|
|
|
return '%c%s\n' % (l, base85.b85encode(line, True))
|
|
|
|
|
|
def chunk(text, csize=52):
|
|
|
l = len(text)
|
|
|
i = 0
|
|
|
while i < l:
|
|
|
yield text[i:i + csize]
|
|
|
i += csize
|
|
|
|
|
|
tohash = gitindex(to)
|
|
|
tnhash = gitindex(tn)
|
|
|
if tohash == tnhash:
|
|
|
return ""
|
|
|
|
|
|
# TODO: deltas
|
|
|
ret = ['index %s..%s\nGIT binary patch\nliteral %s\n' %
|
|
|
(tohash, tnhash, len(tn))]
|
|
|
for l in chunk(zlib.compress(tn)):
|
|
|
ret.append(fmtline(l))
|
|
|
ret.append('\n')
|
|
|
return ''.join(ret)
|
|
|
|
|
|
class GitDiffRequired(Exception):
|
|
|
pass
|
|
|
|
|
|
def diffopts(ui, opts=None, untrusted=False):
|
|
|
def get(key, name=None, getter=ui.configbool):
|
|
|
return ((opts and opts.get(key)) or
|
|
|
getter('diff', name or key, None, untrusted=untrusted))
|
|
|
return mdiff.diffopts(
|
|
|
text=opts and opts.get('text'),
|
|
|
git=get('git'),
|
|
|
nodates=get('nodates'),
|
|
|
showfunc=get('show_function', 'showfunc'),
|
|
|
ignorews=get('ignore_all_space', 'ignorews'),
|
|
|
ignorewsamount=get('ignore_space_change', 'ignorewsamount'),
|
|
|
ignoreblanklines=get('ignore_blank_lines', 'ignoreblanklines'),
|
|
|
context=get('unified', getter=ui.config))
|
|
|
|
|
|
def diff(repo, node1=None, node2=None, match=None, changes=None, opts=None,
|
|
|
losedatafn=None):
|
|
|
'''yields diff of changes to files between two nodes, or node and
|
|
|
working directory.
|
|
|
|
|
|
if node1 is None, use first dirstate parent instead.
|
|
|
if node2 is None, compare node1 with working directory.
|
|
|
|
|
|
losedatafn(**kwarg) is a callable run when opts.upgrade=True and
|
|
|
every time some change cannot be represented with the current
|
|
|
patch format. Return False to upgrade to git patch format, True to
|
|
|
accept the loss or raise an exception to abort the diff. It is
|
|
|
called with the name of current file being diffed as 'fn'. If set
|
|
|
to None, patches will always be upgraded to git format when
|
|
|
necessary.
|
|
|
'''
|
|
|
|
|
|
if opts is None:
|
|
|
opts = mdiff.defaultopts
|
|
|
|
|
|
if not node1 and not node2:
|
|
|
node1 = repo.dirstate.parents()[0]
|
|
|
|
|
|
def lrugetfilectx():
|
|
|
cache = {}
|
|
|
order = []
|
|
|
def getfilectx(f, ctx):
|
|
|
fctx = ctx.filectx(f, filelog=cache.get(f))
|
|
|
if f not in cache:
|
|
|
if len(cache) > 20:
|
|
|
del cache[order.pop(0)]
|
|
|
cache[f] = fctx.filelog()
|
|
|
else:
|
|
|
order.remove(f)
|
|
|
order.append(f)
|
|
|
return fctx
|
|
|
return getfilectx
|
|
|
getfilectx = lrugetfilectx()
|
|
|
|
|
|
ctx1 = repo[node1]
|
|
|
ctx2 = repo[node2]
|
|
|
|
|
|
if not changes:
|
|
|
changes = repo.status(ctx1, ctx2, match=match)
|
|
|
modified, added, removed = changes[:3]
|
|
|
|
|
|
if not modified and not added and not removed:
|
|
|
return []
|
|
|
|
|
|
revs = None
|
|
|
if not repo.ui.quiet:
|
|
|
hexfunc = repo.ui.debugflag and hex or short
|
|
|
revs = [hexfunc(node) for node in [node1, node2] if node]
|
|
|
|
|
|
copy = {}
|
|
|
if opts.git or opts.upgrade:
|
|
|
copy = copies.copies(repo, ctx1, ctx2, repo[nullid])[0]
|
|
|
|
|
|
difffn = lambda opts, losedata: trydiff(repo, revs, ctx1, ctx2,
|
|
|
modified, added, removed, copy, getfilectx, opts, losedata)
|
|
|
if opts.upgrade and not opts.git:
|
|
|
try:
|
|
|
def losedata(fn):
|
|
|
if not losedatafn or not losedatafn(fn=fn):
|
|
|
raise GitDiffRequired()
|
|
|
# Buffer the whole output until we are sure it can be generated
|
|
|
return list(difffn(opts.copy(git=False), losedata))
|
|
|
except GitDiffRequired:
|
|
|
return difffn(opts.copy(git=True), None)
|
|
|
else:
|
|
|
return difffn(opts, None)
|
|
|
|
|
|
def difflabel(func, *args, **kw):
|
|
|
'''yields 2-tuples of (output, label) based on the output of func()'''
|
|
|
prefixes = [('diff', 'diff.diffline'),
|
|
|
('copy', 'diff.extended'),
|
|
|
('rename', 'diff.extended'),
|
|
|
('old', 'diff.extended'),
|
|
|
('new', 'diff.extended'),
|
|
|
('deleted', 'diff.extended'),
|
|
|
('---', 'diff.file_a'),
|
|
|
('+++', 'diff.file_b'),
|
|
|
('@@', 'diff.hunk'),
|
|
|
('-', 'diff.deleted'),
|
|
|
('+', 'diff.inserted')]
|
|
|
|
|
|
for chunk in func(*args, **kw):
|
|
|
lines = chunk.split('\n')
|
|
|
for i, line in enumerate(lines):
|
|
|
if i != 0:
|
|
|
yield ('\n', '')
|
|
|
stripline = line
|
|
|
if line and line[0] in '+-':
|
|
|
# highlight trailing whitespace, but only in changed lines
|
|
|
stripline = line.rstrip()
|
|
|
for prefix, label in prefixes:
|
|
|
if stripline.startswith(prefix):
|
|
|
yield (stripline, label)
|
|
|
break
|
|
|
else:
|
|
|
yield (line, '')
|
|
|
if line != stripline:
|
|
|
yield (line[len(stripline):], 'diff.trailingwhitespace')
|
|
|
|
|
|
def diffui(*args, **kw):
|
|
|
'''like diff(), but yields 2-tuples of (output, label) for ui.write()'''
|
|
|
return difflabel(diff, *args, **kw)
|
|
|
|
|
|
|
|
|
def _addmodehdr(header, omode, nmode):
|
|
|
if omode != nmode:
|
|
|
header.append('old mode %s\n' % omode)
|
|
|
header.append('new mode %s\n' % nmode)
|
|
|
|
|
|
def trydiff(repo, revs, ctx1, ctx2, modified, added, removed,
|
|
|
copy, getfilectx, opts, losedatafn):
|
|
|
|
|
|
date1 = util.datestr(ctx1.date())
|
|
|
man1 = ctx1.manifest()
|
|
|
|
|
|
gone = set()
|
|
|
gitmode = {'l': '120000', 'x': '100755', '': '100644'}
|
|
|
|
|
|
copyto = dict([(v, k) for k, v in copy.items()])
|
|
|
|
|
|
if opts.git:
|
|
|
revs = None
|
|
|
|
|
|
for f in sorted(modified + added + removed):
|
|
|
to = None
|
|
|
tn = None
|
|
|
dodiff = True
|
|
|
header = []
|
|
|
if f in man1:
|
|
|
to = getfilectx(f, ctx1).data()
|
|
|
if f not in removed:
|
|
|
tn = getfilectx(f, ctx2).data()
|
|
|
a, b = f, f
|
|
|
if opts.git or losedatafn:
|
|
|
if f in added:
|
|
|
mode = gitmode[ctx2.flags(f)]
|
|
|
if f in copy or f in copyto:
|
|
|
if opts.git:
|
|
|
if f in copy:
|
|
|
a = copy[f]
|
|
|
else:
|
|
|
a = copyto[f]
|
|
|
omode = gitmode[man1.flags(a)]
|
|
|
_addmodehdr(header, omode, mode)
|
|
|
if a in removed and a not in gone:
|
|
|
op = 'rename'
|
|
|
gone.add(a)
|
|
|
else:
|
|
|
op = 'copy'
|
|
|
header.append('%s from %s\n' % (op, a))
|
|
|
header.append('%s to %s\n' % (op, f))
|
|
|
to = getfilectx(a, ctx1).data()
|
|
|
else:
|
|
|
losedatafn(f)
|
|
|
else:
|
|
|
if opts.git:
|
|
|
header.append('new file mode %s\n' % mode)
|
|
|
elif ctx2.flags(f):
|
|
|
losedatafn(f)
|
|
|
if util.binary(tn):
|
|
|
if opts.git:
|
|
|
dodiff = 'binary'
|
|
|
else:
|
|
|
losedatafn(f)
|
|
|
if not opts.git and not tn:
|
|
|
# regular diffs cannot represent new empty file
|
|
|
losedatafn(f)
|
|
|
elif f in removed:
|
|
|
if opts.git:
|
|
|
# have we already reported a copy above?
|
|
|
if ((f in copy and copy[f] in added
|
|
|
and copyto[copy[f]] == f) or
|
|
|
(f in copyto and copyto[f] in added
|
|
|
and copy[copyto[f]] == f)):
|
|
|
dodiff = False
|
|
|
else:
|
|
|
header.append('deleted file mode %s\n' %
|
|
|
gitmode[man1.flags(f)])
|
|
|
elif not to:
|
|
|
# regular diffs cannot represent empty file deletion
|
|
|
losedatafn(f)
|
|
|
else:
|
|
|
oflag = man1.flags(f)
|
|
|
nflag = ctx2.flags(f)
|
|
|
binary = util.binary(to) or util.binary(tn)
|
|
|
if opts.git:
|
|
|
_addmodehdr(header, gitmode[oflag], gitmode[nflag])
|
|
|
if binary:
|
|
|
dodiff = 'binary'
|
|
|
elif binary or nflag != oflag:
|
|
|
losedatafn(f)
|
|
|
if opts.git:
|
|
|
header.insert(0, mdiff.diffline(revs, a, b, opts))
|
|
|
|
|
|
if dodiff:
|
|
|
if dodiff == 'binary':
|
|
|
text = b85diff(to, tn)
|
|
|
else:
|
|
|
text = mdiff.unidiff(to, date1,
|
|
|
# ctx2 date may be dynamic
|
|
|
tn, util.datestr(ctx2.date()),
|
|
|
a, b, revs, opts=opts)
|
|
|
if header and (text or len(header) > 1):
|
|
|
yield ''.join(header)
|
|
|
if text:
|
|
|
yield text
|
|
|
|
|
|
def diffstatdata(lines):
|
|
|
filename, adds, removes = None, 0, 0
|
|
|
for line in lines:
|
|
|
if line.startswith('diff'):
|
|
|
if filename:
|
|
|
isbinary = adds == 0 and removes == 0
|
|
|
yield (filename, adds, removes, isbinary)
|
|
|
# set numbers to 0 anyway when starting new file
|
|
|
adds, removes = 0, 0
|
|
|
if line.startswith('diff --git'):
|
|
|
filename = gitre.search(line).group(1)
|
|
|
else:
|
|
|
# format: "diff -r ... -r ... filename"
|
|
|
filename = line.split(None, 5)[-1]
|
|
|
elif line.startswith('+') and not line.startswith('+++'):
|
|
|
adds += 1
|
|
|
elif line.startswith('-') and not line.startswith('---'):
|
|
|
removes += 1
|
|
|
if filename:
|
|
|
isbinary = adds == 0 and removes == 0
|
|
|
yield (filename, adds, removes, isbinary)
|
|
|
|
|
|
def diffstat(lines, width=80, git=False):
|
|
|
output = []
|
|
|
stats = list(diffstatdata(lines))
|
|
|
|
|
|
maxtotal, maxname = 0, 0
|
|
|
totaladds, totalremoves = 0, 0
|
|
|
hasbinary = False
|
|
|
for filename, adds, removes, isbinary in stats:
|
|
|
totaladds += adds
|
|
|
totalremoves += removes
|
|
|
maxname = max(maxname, len(filename))
|
|
|
maxtotal = max(maxtotal, adds + removes)
|
|
|
if isbinary:
|
|
|
hasbinary = True
|
|
|
|
|
|
countwidth = len(str(maxtotal))
|
|
|
if hasbinary and countwidth < 3:
|
|
|
countwidth = 3
|
|
|
graphwidth = width - countwidth - maxname - 6
|
|
|
if graphwidth < 10:
|
|
|
graphwidth = 10
|
|
|
|
|
|
def scale(i):
|
|
|
if maxtotal <= graphwidth:
|
|
|
return i
|
|
|
# If diffstat runs out of room it doesn't print anything,
|
|
|
# which isn't very useful, so always print at least one + or -
|
|
|
# if there were at least some changes.
|
|
|
return max(i * graphwidth // maxtotal, int(bool(i)))
|
|
|
|
|
|
for filename, adds, removes, isbinary in stats:
|
|
|
if git and isbinary:
|
|
|
count = 'Bin'
|
|
|
else:
|
|
|
count = adds + removes
|
|
|
pluses = '+' * scale(adds)
|
|
|
minuses = '-' * scale(removes)
|
|
|
output.append(' %-*s | %*s %s%s\n' % (maxname, filename, countwidth,
|
|
|
count, pluses, minuses))
|
|
|
|
|
|
if stats:
|
|
|
output.append(_(' %d files changed, %d insertions(+), %d deletions(-)\n')
|
|
|
% (len(stats), totaladds, totalremoves))
|
|
|
|
|
|
return ''.join(output)
|
|
|
|
|
|
def diffstatui(*args, **kw):
|
|
|
'''like diffstat(), but yields 2-tuples of (output, label) for
|
|
|
ui.write()
|
|
|
'''
|
|
|
|
|
|
for line in diffstat(*args, **kw).splitlines():
|
|
|
if line and line[-1] in '+-':
|
|
|
name, graph = line.rsplit(' ', 1)
|
|
|
yield (name + ' ', '')
|
|
|
m = re.search(r'\++', graph)
|
|
|
if m:
|
|
|
yield (m.group(0), 'diffstat.inserted')
|
|
|
m = re.search(r'-+', graph)
|
|
|
if m:
|
|
|
yield (m.group(0), 'diffstat.deleted')
|
|
|
else:
|
|
|
yield (line, '')
|
|
|
yield ('\n', '')
|
|
|
|
