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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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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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from demandload import demandload
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from i18n import gettext as _
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from node import *
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demandload(globals(), "base85 cmdutil mdiff util")
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demandload(globals(), "cStringIO email.Parser errno os re shutil sha sys")
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demandload(globals(), "tempfile zlib")
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# helper functions
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def copyfile(src, dst, basedir=None):
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if not basedir:
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basedir = os.getcwd()
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abssrc, absdst = [os.path.join(basedir, n) for n 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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targetdir = os.path.dirname(absdst)
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if not os.path.isdir(targetdir):
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os.makedirs(targetdir)
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try:
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shutil.copyfile(abssrc, absdst)
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shutil.copymode(abssrc, absdst)
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except shutil.Error, inst:
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raise util.Abort(str(inst))
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# public functions
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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 normal patch or contained in email message.
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return tuple (filename, message, user, date). any item in returned
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tuple can be None. if filename is None, fileobj did not contain
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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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'retrieving revision [0-9]+(\.[0-9]+)*$|' +
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'(---|\*\*\*)[ \t])', re.MULTILINE)
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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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hgpatch = False
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msg = email.Parser.Parser().parse(fileobj)
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message = msg['Subject']
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user = msg['From']
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# should try to parse msg['Date']
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date = None
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if message:
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message = message.replace('\n\t', ' ')
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ui.debug('Subject: %s\n' % message)
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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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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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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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if message:
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cfp.write(message)
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cfp.write('\n')
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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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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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if not line.startswith('# '):
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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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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
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return tmpname, message, user, date
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def readgitpatch(patchname):
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"""extract git-style metadata about patches from <patchname>"""
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class gitpatch:
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"op is one of ADD, DELETE, RENAME, MODIFY or COPY"
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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.copymod = False
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self.lineno = 0
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self.binary = False
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# Filter patch for git information
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gitre = re.compile('diff --git a/(.*) b/(.*)')
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pf = file(patchname)
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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 = False
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lineno = 0
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for line in pf:
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lineno += 1
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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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src, dst = m.group(1,2)
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gp = gitpatch(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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gp.copymod = True
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dopatch = 'filter'
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gitpatches.append(gp)
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gp = None
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if not dopatch:
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dopatch = True
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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:].rstrip()
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elif line.startswith('rename to '):
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gp.path = line[10:].rstrip()
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elif line.startswith('copy from '):
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gp.op = 'COPY'
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gp.oldpath = line[10:].rstrip()
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elif line.startswith('copy to '):
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gp.path = line[8:].rstrip()
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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.mode = int(line.rstrip()[-3:], 8)
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elif line.startswith('new mode '):
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gp.mode = int(line.rstrip()[-3:], 8)
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elif line.startswith('GIT binary patch'):
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if not dopatch:
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dopatch = '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 = True
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return (dopatch, gitpatches)
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def dogitpatch(patchname, gitpatches, cwd=None):
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"""Preprocess git patch so that vanilla patch can handle it"""
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def extractbin(fp):
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line = fp.readline()
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while line and not line.startswith('literal '):
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line = fp.readline()
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if not line:
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return
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size = int(line[8:].rstrip())
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dec = []
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line = fp.readline()
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while line:
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line = line[1:-1]
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dec.append(base85.b85decode(line))
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line = fp.readline()
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text = zlib.decompress(''.join(dec))
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if len(text) != size:
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raise util.Abort(_('binary patch is %d bytes, not %d') %
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(len(text), size))
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return text
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pf = file(patchname)
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pfline = 1
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fd, patchname = tempfile.mkstemp(prefix='hg-patch-')
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tmpfp = os.fdopen(fd, 'w')
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try:
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for i in range(len(gitpatches)):
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p = gitpatches[i]
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if not p.copymod and not p.binary:
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continue
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# rewrite patch hunk
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while pfline < p.lineno:
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tmpfp.write(pf.readline())
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pfline += 1
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if p.binary:
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text = extractbin(pf)
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if not text:
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raise util.Abort(_('binary patch extraction failed'))
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if not cwd:
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cwd = os.getcwd()
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absdst = os.path.join(cwd, p.path)
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basedir = os.path.dirname(absdst)
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if not os.path.isdir(basedir):
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os.makedirs(basedir)
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out = file(absdst, 'wb')
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out.write(text)
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out.close()
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elif p.copymod:
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copyfile(p.oldpath, p.path, basedir=cwd)
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tmpfp.write('diff --git a/%s b/%s\n' % (p.path, p.path))
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line = pf.readline()
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pfline += 1
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while not line.startswith('--- a/'):
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tmpfp.write(line)
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line = pf.readline()
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pfline += 1
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tmpfp.write('--- a/%s\n' % p.path)
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line = pf.readline()
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while line:
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tmpfp.write(line)
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line = pf.readline()
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except:
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tmpfp.close()
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os.unlink(patchname)
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raise
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tmpfp.close()
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return patchname
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def patch(patchname, ui, strip=1, cwd=None):
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"""apply the patch <patchname> to the working directory.
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a list of patched files is returned"""
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# helper function
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def __patch(patchname):
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"""patch and updates the files and fuzz variables"""
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files = {}
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fuzz = False
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patcher = util.find_in_path('gpatch', os.environ.get('PATH', ''),
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'patch')
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args = []
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if cwd:
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args.append('-d %s' % util.shellquote(cwd))
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fp = os.popen('%s %s -p%d < %s' % (patcher, ' '.join(args), strip,
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util.shellquote(patchname)))
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for line in fp:
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line = line.rstrip()
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ui.note(line + '\n')
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if line.startswith('patching file '):
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pf = util.parse_patch_output(line)
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printed_file = False
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files.setdefault(pf, (None, None))
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elif line.find('with fuzz') >= 0:
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fuzz = True
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if not printed_file:
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ui.warn(pf + '\n')
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printed_file = True
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ui.warn(line + '\n')
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elif line.find('saving rejects to file') >= 0:
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ui.warn(line + '\n')
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elif line.find('FAILED') >= 0:
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if not printed_file:
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ui.warn(pf + '\n')
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printed_file = True
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ui.warn(line + '\n')
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code = fp.close()
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if code:
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raise util.Abort(_("patch command failed: %s") %
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util.explain_exit(code)[0])
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return files, fuzz
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(dopatch, gitpatches) = readgitpatch(patchname)
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files, fuzz = {}, False
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if dopatch:
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if dopatch in ('filter', 'binary'):
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patchname = dogitpatch(patchname, gitpatches, cwd=cwd)
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try:
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if dopatch != 'binary':
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files, fuzz = __patch(patchname)
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finally:
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if dopatch == 'filter':
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os.unlink(patchname)
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for gp in gitpatches:
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files[gp.path] = (gp.op, gp)
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return (files, fuzz)
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def diffopts(ui, opts={}):
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return mdiff.diffopts(
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text=opts.get('text'),
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git=(opts.get('git') or
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ui.configbool('diff', 'git', None)),
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nodates=(opts.get('nodates') or
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ui.configbool('diff', 'nodates', None)),
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showfunc=(opts.get('show_function') or
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ui.configbool('diff', 'showfunc', None)),
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ignorews=(opts.get('ignore_all_space') or
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ui.configbool('diff', 'ignorews', None)),
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ignorewsamount=(opts.get('ignore_space_change') or
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ui.configbool('diff', 'ignorewsamount', None)),
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ignoreblanklines=(opts.get('ignore_blank_lines') or
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ui.configbool('diff', 'ignoreblanklines', None)))
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def updatedir(ui, repo, patches, wlock=None):
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'''Update dirstate after patch application according to metadata'''
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if not patches:
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return
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copies = []
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removes = []
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cfiles = patches.keys()
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cwd = repo.getcwd()
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if cwd:
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cfiles = [util.pathto(cwd, f) for f in patches.keys()]
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for f in patches:
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ctype, gp = patches[f]
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if ctype == 'RENAME':
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copies.append((gp.oldpath, gp.path, gp.copymod))
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removes.append(gp.oldpath)
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elif ctype == 'COPY':
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copies.append((gp.oldpath, gp.path, gp.copymod))
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elif ctype == 'DELETE':
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removes.append(gp.path)
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for src, dst, after in copies:
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if not after:
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copyfile(src, dst, repo.root)
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repo.copy(src, dst, wlock=wlock)
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if removes:
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repo.remove(removes, True, wlock=wlock)
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for f in patches:
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ctype, gp = patches[f]
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if gp and gp.mode:
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x = gp.mode & 0100 != 0
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dst = os.path.join(repo.root, gp.path)
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util.set_exec(dst, x)
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cmdutil.addremove(repo, cfiles, wlock=wlock)
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files = patches.keys()
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files.extend([r for r in removes if r not in files])
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files.sort()
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return files
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def b85diff(fp, to, tn):
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'''print base85-encoded binary diff'''
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def gitindex(text):
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if not text:
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return '0' * 40
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l = len(text)
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s = sha.new('blob %d\0' % l)
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s.update(text)
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return s.hexdigest()
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def fmtline(line):
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l = len(line)
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if l <= 26:
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l = chr(ord('A') + l - 1)
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else:
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l = chr(l - 26 + ord('a') - 1)
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return '%c%s\n' % (l, base85.b85encode(line, True))
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def chunk(text, csize=52):
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l = len(text)
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i = 0
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while i < l:
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yield text[i:i+csize]
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i += csize
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# TODO: deltas
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l = len(tn)
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fp.write('index %s..%s\nGIT binary patch\nliteral %s\n' %
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(gitindex(to), gitindex(tn), len(tn)))
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tn = ''.join([fmtline(l) for l in chunk(zlib.compress(tn))])
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fp.write(tn)
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fp.write('\n')
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def diff(repo, node1=None, node2=None, files=None, match=util.always,
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fp=None, changes=None, opts=None):
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'''print diff of changes to files between two nodes, or node and
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working directory.
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if node1 is None, use first dirstate parent instead.
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if node2 is None, compare node1 with working directory.'''
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if opts is None:
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opts = mdiff.defaultopts
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if fp is None:
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fp = repo.ui
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if not node1:
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node1 = repo.dirstate.parents()[0]
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clcache = {}
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def getchangelog(n):
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if n not in clcache:
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|
clcache[n] = repo.changelog.read(n)
|
|
|
return clcache[n]
|
|
|
mcache = {}
|
|
|
def getmanifest(n):
|
|
|
if n not in mcache:
|
|
|
mcache[n] = repo.manifest.read(n)
|
|
|
return mcache[n]
|
|
|
fcache = {}
|
|
|
def getfile(f):
|
|
|
if f not in fcache:
|
|
|
fcache[f] = repo.file(f)
|
|
|
return fcache[f]
|
|
|
|
|
|
# reading the data for node1 early allows it to play nicely
|
|
|
# with repo.status and the revlog cache.
|
|
|
change = getchangelog(node1)
|
|
|
mmap = getmanifest(change[0])
|
|
|
date1 = util.datestr(change[2])
|
|
|
|
|
|
if not changes:
|
|
|
changes = repo.status(node1, node2, files, match=match)[:5]
|
|
|
modified, added, removed, deleted, unknown = changes
|
|
|
if files:
|
|
|
def filterfiles(filters):
|
|
|
l = [x for x in filters if x in files]
|
|
|
|
|
|
for t in files:
|
|
|
if not t.endswith("/"):
|
|
|
t += "/"
|
|
|
l += [x for x in filters if x.startswith(t)]
|
|
|
return l
|
|
|
|
|
|
modified, added, removed = map(filterfiles, (modified, added, removed))
|
|
|
|
|
|
if not modified and not added and not removed:
|
|
|
return
|
|
|
|
|
|
def renamedbetween(f, n1, n2):
|
|
|
r1, r2 = map(repo.changelog.rev, (n1, n2))
|
|
|
src = None
|
|
|
while r2 > r1:
|
|
|
cl = getchangelog(n2)[0]
|
|
|
m = getmanifest(cl)
|
|
|
try:
|
|
|
src = getfile(f).renamed(m[f])
|
|
|
except KeyError:
|
|
|
return None
|
|
|
if src:
|
|
|
f = src[0]
|
|
|
n2 = repo.changelog.parents(n2)[0]
|
|
|
r2 = repo.changelog.rev(n2)
|
|
|
return src
|
|
|
|
|
|
if node2:
|
|
|
change = getchangelog(node2)
|
|
|
mmap2 = getmanifest(change[0])
|
|
|
_date2 = util.datestr(change[2])
|
|
|
def date2(f):
|
|
|
return _date2
|
|
|
def read(f):
|
|
|
return getfile(f).read(mmap2[f])
|
|
|
def renamed(f):
|
|
|
return renamedbetween(f, node1, node2)
|
|
|
else:
|
|
|
tz = util.makedate()[1]
|
|
|
_date2 = util.datestr()
|
|
|
def date2(f):
|
|
|
try:
|
|
|
return util.datestr((os.lstat(repo.wjoin(f)).st_mtime, tz))
|
|
|
except OSError, err:
|
|
|
if err.errno != errno.ENOENT: raise
|
|
|
return _date2
|
|
|
def read(f):
|
|
|
return repo.wread(f)
|
|
|
def renamed(f):
|
|
|
src = repo.dirstate.copied(f)
|
|
|
parent = repo.dirstate.parents()[0]
|
|
|
if src:
|
|
|
f = src[0]
|
|
|
of = renamedbetween(f, node1, parent)
|
|
|
if of:
|
|
|
return of
|
|
|
elif src:
|
|
|
cl = getchangelog(parent)[0]
|
|
|
return (src, getmanifest(cl)[src])
|
|
|
else:
|
|
|
return None
|
|
|
|
|
|
if repo.ui.quiet:
|
|
|
r = None
|
|
|
else:
|
|
|
hexfunc = repo.ui.verbose and hex or short
|
|
|
r = [hexfunc(node) for node in [node1, node2] if node]
|
|
|
|
|
|
if opts.git:
|
|
|
copied = {}
|
|
|
for f in added:
|
|
|
src = renamed(f)
|
|
|
if src:
|
|
|
copied[f] = src
|
|
|
srcs = [x[1][0] for x in copied.items()]
|
|
|
|
|
|
all = modified + added + removed
|
|
|
all.sort()
|
|
|
for f in all:
|
|
|
to = None
|
|
|
tn = None
|
|
|
dodiff = True
|
|
|
header = []
|
|
|
if f in mmap:
|
|
|
to = getfile(f).read(mmap[f])
|
|
|
if f not in removed:
|
|
|
tn = read(f)
|
|
|
if opts.git:
|
|
|
def gitmode(x):
|
|
|
return x and '100755' or '100644'
|
|
|
def addmodehdr(header, omode, nmode):
|
|
|
if omode != nmode:
|
|
|
header.append('old mode %s\n' % omode)
|
|
|
header.append('new mode %s\n' % nmode)
|
|
|
|
|
|
a, b = f, f
|
|
|
if f in added:
|
|
|
if node2:
|
|
|
mode = gitmode(mmap2.execf(f))
|
|
|
else:
|
|
|
mode = gitmode(util.is_exec(repo.wjoin(f), None))
|
|
|
if f in copied:
|
|
|
a, arev = copied[f]
|
|
|
omode = gitmode(mmap.execf(a))
|
|
|
addmodehdr(header, omode, mode)
|
|
|
op = a in removed and 'rename' or 'copy'
|
|
|
header.append('%s from %s\n' % (op, a))
|
|
|
header.append('%s to %s\n' % (op, f))
|
|
|
to = getfile(a).read(arev)
|
|
|
else:
|
|
|
header.append('new file mode %s\n' % mode)
|
|
|
if util.binary(tn):
|
|
|
dodiff = 'binary'
|
|
|
elif f in removed:
|
|
|
if f in srcs:
|
|
|
dodiff = False
|
|
|
else:
|
|
|
mode = gitmode(mmap.execf(f))
|
|
|
header.append('deleted file mode %s\n' % mode)
|
|
|
else:
|
|
|
omode = gitmode(mmap.execf(f))
|
|
|
if node2:
|
|
|
nmode = gitmode(mmap2.execf(f))
|
|
|
else:
|
|
|
nmode = gitmode(util.is_exec(repo.wjoin(f), mmap.execf(f)))
|
|
|
addmodehdr(header, omode, nmode)
|
|
|
if util.binary(to) or util.binary(tn):
|
|
|
dodiff = 'binary'
|
|
|
r = None
|
|
|
header.insert(0, 'diff --git a/%s b/%s\n' % (a, b))
|
|
|
if dodiff == 'binary':
|
|
|
fp.write(''.join(header))
|
|
|
b85diff(fp, to, tn)
|
|
|
elif dodiff:
|
|
|
text = mdiff.unidiff(to, date1, tn, date2(f), f, r, opts=opts)
|
|
|
if text or len(header) > 1:
|
|
|
fp.write(''.join(header))
|
|
|
fp.write(text)
|
|
|
|
|
|
def export(repo, revs, template='hg-%h.patch', fp=None, switch_parent=False,
|
|
|
opts=None):
|
|
|
'''export changesets as hg patches.'''
|
|
|
|
|
|
total = len(revs)
|
|
|
revwidth = max(map(len, revs))
|
|
|
|
|
|
def single(node, seqno, fp):
|
|
|
parents = [p for p in repo.changelog.parents(node) if p != nullid]
|
|
|
if switch_parent:
|
|
|
parents.reverse()
|
|
|
prev = (parents and parents[0]) or nullid
|
|
|
change = repo.changelog.read(node)
|
|
|
|
|
|
if not fp:
|
|
|
fp = cmdutil.make_file(repo, template, node, total=total,
|
|
|
seqno=seqno, revwidth=revwidth)
|
|
|
if fp not in (sys.stdout, repo.ui):
|
|
|
repo.ui.note("%s\n" % fp.name)
|
|
|
|
|
|
fp.write("# HG changeset patch\n")
|
|
|
fp.write("# User %s\n" % change[1])
|
|
|
fp.write("# Date %d %d\n" % change[2])
|
|
|
fp.write("# Node ID %s\n" % hex(node))
|
|
|
fp.write("# Parent %s\n" % hex(prev))
|
|
|
if len(parents) > 1:
|
|
|
fp.write("# Parent %s\n" % hex(parents[1]))
|
|
|
fp.write(change[4].rstrip())
|
|
|
fp.write("\n\n")
|
|
|
|
|
|
diff(repo, prev, node, fp=fp, opts=opts)
|
|
|
if fp not in (sys.stdout, repo.ui):
|
|
|
fp.close()
|
|
|
|
|
|
for seqno, cset in enumerate(revs):
|
|
|
single(cset, seqno, fp)
|
|
|
|
|
|
def diffstat(patchlines):
|
|
|
fd, name = tempfile.mkstemp(prefix="hg-patchbomb-", suffix=".txt")
|
|
|
try:
|
|
|
p = popen2.Popen3('diffstat -p1 -w79 2>/dev/null > ' + name)
|
|
|
try:
|
|
|
for line in patchlines: print >> p.tochild, line
|
|
|
p.tochild.close()
|
|
|
if p.wait(): return
|
|
|
fp = os.fdopen(fd, 'r')
|
|
|
stat = []
|
|
|
for line in fp: stat.append(line.lstrip())
|
|
|
last = stat.pop()
|
|
|
stat.insert(0, last)
|
|
|
stat = ''.join(stat)
|
|
|
if stat.startswith('0 files'): raise ValueError
|
|
|
return stat
|
|
|
except: raise
|
|
|
finally:
|
|
|
try: os.unlink(name)
|
|
|
except: pass
|
|
|
|
