def readrequires(opener, supported):
'''Reads and parses .hg/requires and checks if all entries found
are in the list of supported features.'''
requirements = set(opener.read("requires").splitlines())
missings = []
for r in requirements:
if r not in supported:
if not r or not r[0].isalnum():
raise error.RequirementError(_(".hg/requires file is corrupt"))
missings.append(r)
missings.sort()
if missings:
raise error.RequirementError(_("unknown repository format: "
"requires features '%s' (upgrade Mercurial)") % "', '".join(missings))
return requirements
def readrequires(opener, supported):
'''Reads and parses .hg/requires and checks if all entries found
are in the list of supported features.'''
requirements = set(opener.read("requires").splitlines())
missings = []
for r in requirements:
if r not in supported:
if not r or not r[0].isalnum():
raise error.RequirementError(_(".hg/requires file is corrupt"))
missings.append(r)
missings.sort()
if missings:
raise error.RequirementError(
_("repository requires features unknown to this Mercurial: %s") %
" ".join(missings),
hint=_("see http://mercurial.selenic.com/wiki/MissingRequirement"
" for more information"))
return requirements
try:
fp = self.opener("00changelog.i")
fp.read(1)
fp.close()
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
# we do not care about empty old-style repositories here
msg = _("'%s' does not appear to be an hg repository") % path
raise error.RepoError(msg)
requirements = []
# check them
for r in requirements:
if r not in self.supported:
raise error.RequirementError(
_("requirement '%s' not supported") % r)
# setup store
self.store = store.store(requirements, self.path, opener)
self.spath = self.store.path
self.sopener = self.store.opener
self.sjoin = self.store.join
self.manifest = manifest.manifest(self.sopener)
self.changelog = changelog.changelog(self.sopener)
self._tags = None
self.nodetagscache = None
self._branchcache = None
self._branchcachetip = None
self.encodepats = None
self.decodepats = None