##// END OF EJS Templates
shelve: keep old backups if timestamp can't decide exact order of them...
shelve: keep old backups if timestamp can't decide exact order of them Before this patch, backups to be discarded are decided by steps below at 'hg unshelve' or so: 1. list '(st_mtime, filename)' tuples of each backups up 2. sort list of these tuples, and 3. discard backups other than 'maxbackups' ones at the end of list This doesn't work well in the case below: - "sort by name" order differs from actual backup-ing order, and - some of backups have same timestamp For example, 'test-shelve.t' satisfies the former condition: - 'default-01' < 'default-1' in "sort by name" order - 'default-1' < 'default-01' in actual backup-ing order Then, 'default-01' is discarded instead of 'default-1' unexpectedly, if they have same timestamp. This failure appears occasionally, because the most important condition "same timestamp" is timing critical. To avoid such unexpected discarding, this patch keeps old backups if timestamp can't decide exact order of them. Timestamp of the border backup (= the oldest one of recent 'maxbackups' ones) as 'bordermtime' is used to examine whether timestamp can decide exact order of backups.

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r25760:648323f4 merge default
r25774:4f8c20fe default
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p4.py
254 lines | 8.8 KiB | text/x-python | PythonLexer
# Perforce source for convert extension.
#
# Copyright 2009, Frank Kingswood <frank@kingswood-consulting.co.uk>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from mercurial import util
from mercurial.i18n import _
from common import commit, converter_source, checktool, NoRepo
import marshal
import re
def loaditer(f):
"Yield the dictionary objects generated by p4"
try:
while True:
d = marshal.load(f)
if not d:
break
yield d
except EOFError:
pass
class p4_source(converter_source):
def __init__(self, ui, path, revs=None):
super(p4_source, self).__init__(ui, path, revs=revs)
if "/" in path and not path.startswith('//'):
raise NoRepo(_('%s does not look like a P4 repository') % path)
checktool('p4', abort=False)
self.p4changes = {}
self.heads = {}
self.changeset = {}
self.files = {}
self.copies = {}
self.tags = {}
self.lastbranch = {}
self.parent = {}
self.encoding = "latin_1"
self.depotname = {} # mapping from local name to depot name
self.localname = {} # mapping from depot name to local name
self.re_type = re.compile(
"([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)"
"(\+\w+)?$")
self.re_keywords = re.compile(
r"\$(Id|Header|Date|DateTime|Change|File|Revision|Author)"
r":[^$\n]*\$")
self.re_keywords_old = re.compile("\$(Id|Header):[^$\n]*\$")
if revs and len(revs) > 1:
raise util.Abort(_("p4 source does not support specifying "
"multiple revisions"))
self._parse(ui, path)
def _parse_view(self, path):
"Read changes affecting the path"
cmd = 'p4 -G changes -s submitted %s' % util.shellquote(path)
stdout = util.popen(cmd, mode='rb')
for d in loaditer(stdout):
c = d.get("change", None)
if c:
self.p4changes[c] = True
def _parse(self, ui, path):
"Prepare list of P4 filenames and revisions to import"
ui.status(_('reading p4 views\n'))
# read client spec or view
if "/" in path:
self._parse_view(path)
if path.startswith("//") and path.endswith("/..."):
views = {path[:-3]:""}
else:
views = {"//": ""}
else:
cmd = 'p4 -G client -o %s' % util.shellquote(path)
clientspec = marshal.load(util.popen(cmd, mode='rb'))
views = {}
for client in clientspec:
if client.startswith("View"):
sview, cview = clientspec[client].split()
self._parse_view(sview)
if sview.endswith("...") and cview.endswith("..."):
sview = sview[:-3]
cview = cview[:-3]
cview = cview[2:]
cview = cview[cview.find("/") + 1:]
views[sview] = cview
# list of changes that affect our source files
self.p4changes = self.p4changes.keys()
self.p4changes.sort(key=int)
# list with depot pathnames, longest first
vieworder = views.keys()
vieworder.sort(key=len, reverse=True)
# handle revision limiting
startrev = self.ui.config('convert', 'p4.startrev', default=0)
self.p4changes = [x for x in self.p4changes
if ((not startrev or int(x) >= int(startrev)) and
(not self.revs or int(x) <= int(self.revs[0])))]
# now read the full changelists to get the list of file revisions
ui.status(_('collecting p4 changelists\n'))
lastid = None
for change in self.p4changes:
cmd = "p4 -G describe -s %s" % change
stdout = util.popen(cmd, mode='rb')
d = marshal.load(stdout)
desc = self.recode(d.get("desc", ""))
shortdesc = desc.split("\n", 1)[0]
t = '%s %s' % (d["change"], repr(shortdesc)[1:-1])
ui.status(util.ellipsis(t, 80) + '\n')
if lastid:
parents = [lastid]
else:
parents = []
date = (int(d["time"]), 0) # timezone not set
c = commit(author=self.recode(d["user"]),
date=util.datestr(date, '%Y-%m-%d %H:%M:%S %1%2'),
parents=parents, desc=desc, branch='',
extra={"p4": change})
files = []
copies = {}
copiedfiles = []
i = 0
while ("depotFile%d" % i) in d and ("rev%d" % i) in d:
oldname = d["depotFile%d" % i]
filename = None
for v in vieworder:
if oldname.startswith(v):
filename = views[v] + oldname[len(v):]
break
if filename:
files.append((filename, d["rev%d" % i]))
self.depotname[filename] = oldname
if (d.get("action%d" % i) == "move/add"):
copiedfiles.append(filename)
self.localname[oldname] = filename
i += 1
# Collect information about copied files
for filename in copiedfiles:
oldname = self.depotname[filename]
flcmd = 'p4 -G filelog %s' \
% util.shellquote(oldname)
flstdout = util.popen(flcmd, mode='rb')
copiedfilename = None
for d in loaditer(flstdout):
copiedoldname = None
i = 0
while ("change%d" % i) in d:
if (d["change%d" % i] == change and
d["action%d" % i] == "move/add"):
j = 0
while ("file%d,%d" % (i, j)) in d:
if d["how%d,%d" % (i, j)] == "moved from":
copiedoldname = d["file%d,%d" % (i, j)]
break
j += 1
i += 1
if copiedoldname and copiedoldname in self.localname:
copiedfilename = self.localname[copiedoldname]
break
if copiedfilename:
copies[filename] = copiedfilename
else:
ui.warn(_("cannot find source for copied file: %s@%s\n")
% (filename, change))
self.changeset[change] = c
self.files[change] = files
self.copies[change] = copies
lastid = change
if lastid:
self.heads = [lastid]
def getheads(self):
return self.heads
def getfile(self, name, rev):
cmd = 'p4 -G print %s' \
% util.shellquote("%s#%s" % (self.depotname[name], rev))
stdout = util.popen(cmd, mode='rb')
mode = None
contents = ""
keywords = None
for d in loaditer(stdout):
code = d["code"]
data = d.get("data")
if code == "error":
raise IOError(d["generic"], data)
elif code == "stat":
action = d.get("action")
if action in ["purge", "delete", "move/delete"]:
return None, None
p4type = self.re_type.match(d["type"])
if p4type:
mode = ""
flags = (p4type.group(1) or "") + (p4type.group(3) or "")
if "x" in flags:
mode = "x"
if p4type.group(2) == "symlink":
mode = "l"
if "ko" in flags:
keywords = self.re_keywords_old
elif "k" in flags:
keywords = self.re_keywords
elif code == "text" or code == "binary":
contents += data
if mode is None:
return None, None
if keywords:
contents = keywords.sub("$\\1$", contents)
if mode == "l" and contents.endswith("\n"):
contents = contents[:-1]
return contents, mode
def getchanges(self, rev, full):
if full:
raise util.Abort(_("convert from p4 do not support --full"))
return self.files[rev], self.copies[rev], set()
def getcommit(self, rev):
return self.changeset[rev]
def gettags(self):
return self.tags
def getchangedfiles(self, rev, i):
return sorted([x[0] for x in self.files[rev]])