Mercurial > hg
view mercurial/changelog.py @ 3416:145a8fde69e6
Update branch on checkout/update
author | Matt Mackall <mpm@selenic.com> |
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date | Tue, 17 Oct 2006 18:30:20 -0500 |
parents | f2de6b6bc57a |
children | 29d91e57d055 |
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# changelog.py - changelog class for mercurial # # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. from revlog import * from i18n import gettext as _ from demandload import demandload demandload(globals(), "os time util") def _string_escape(text): """ >>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)} >>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d >>> s 'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n' >>> res = _string_escape(s) >>> s == _string_unescape(res) True """ # subset of the string_escape codec text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r') return text.replace('\0', '\\0') def _string_unescape(text): return text.decode('string_escape') class changelog(revlog): def __init__(self, opener, defversion=REVLOGV0): revlog.__init__(self, opener, "00changelog.i", "00changelog.d", defversion) def decode_extra(self, text): extra = {} for l in text.split('\0'): if not l: continue k, v = _string_unescape(l).split(':', 1) extra[k] = v return extra def encode_extra(self, d): items = [_string_escape(":".join(t)) for t in d.iteritems()] return "\0".join(items) def extract(self, text): """ format used: nodeid\n : manifest node in ascii user\n : user, no \n or \r allowed time tz extra\n : date (time is int or float, timezone is int) : extra is metadatas, encoded and separated by '\0' : older versions ignore it files\n\n : files modified by the cset, no \n or \r allowed (.*) : comment (free text, ideally utf-8) changelog v0 doesn't use extra """ if not text: return (nullid, "", (0, 0), [], "", {}) last = text.index("\n\n") desc = text[last + 2:] l = text[:last].split('\n') manifest = bin(l[0]) user = l[1] extra_data = l[2].split(' ', 2) if len(extra_data) != 3: time = float(extra_data.pop(0)) try: # various tools did silly things with the time zone field. timezone = int(extra_data[0]) except: timezone = 0 extra = {} else: time, timezone, extra = extra_data time, timezone = float(time), int(timezone) extra = self.decode_extra(extra) files = l[3:] return (manifest, user, (time, timezone), files, desc, extra) def read(self, node): return self.extract(self.revision(node)) def add(self, manifest, list, desc, transaction, p1=None, p2=None, user=None, date=None, extra={}): if date: parseddate = "%d %d" % util.parsedate(date) else: parseddate = "%d %d" % util.makedate() if extra: extra = self.encode_extra(extra) parseddate = "%s %s" % (parseddate, extra) list.sort() l = [hex(manifest), user, parseddate] + list + ["", desc] text = "\n".join(l) return self.addrevision(text, transaction, self.count(), p1, p2)