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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Fetch' implementation for mercurial DRCS (hg).
"""
# Copyright (C) 2003, 2004 Chris Larson
# Copyright (C) 2004 Marcin Juszkiewicz
# Copyright (C) 2007 Robert Schuster
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
import os
import sys
import logging
import bb
import errno
from bb.fetch2 import FetchMethod
from bb.fetch2 import FetchError
from bb.fetch2 import MissingParameterError
from bb.fetch2 import runfetchcmd
from bb.fetch2 import logger
class Hg(FetchMethod):
"""Class to fetch from mercurial repositories"""
def supports(self, ud, d):
"""
Check to see if a given url can be fetched with mercurial.
"""
return ud.type in ['hg']
def supports_checksum(self, urldata):
"""
Don't require checksums for local archives created from
repository checkouts.
"""
return False
def urldata_init(self, ud, d):
"""
init hg specific variable within url data
"""
if not "module" in ud.parm:
raise MissingParameterError('module', ud.url)
ud.module = ud.parm["module"]
if 'protocol' in ud.parm:
ud.proto = ud.parm['protocol']
elif not ud.host:
ud.proto = 'file'
else:
ud.proto = "hg"
ud.setup_revisions(d)
if 'rev' in ud.parm:
ud.revision = ud.parm['rev']
elif not ud.revision:
ud.revision = self.latest_revision(ud, d)
# Create paths to mercurial checkouts
hgsrcname = '%s_%s_%s' % (ud.module.replace('/', '.'), \
ud.host, ud.path.replace('/', '.'))
mirrortarball = 'hg_%s.tar.gz' % hgsrcname
ud.fullmirror = os.path.join(d.getVar("DL_DIR"), mirrortarball)
ud.mirrortarballs = [mirrortarball]
hgdir = d.getVar("HGDIR") or (d.getVar("DL_DIR") + "/hg/")
ud.pkgdir = os.path.join(hgdir, hgsrcname)
ud.moddir = os.path.join(ud.pkgdir, ud.module)
ud.localfile = ud.moddir
ud.basecmd = d.getVar("FETCHCMD_hg") or "/usr/bin/env hg"
ud.write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS")
def need_update(self, ud, d):
revTag = ud.parm.get('rev', 'tip')
if revTag == "tip":
return True
if not os.path.exists(ud.localpath):
return True
return False
def try_premirror(self, ud, d):
# If we don't do this, updating an existing checkout with only premirrors
# is not possible
if d.getVar("BB_FETCH_PREMIRRORONLY") is not None:
return True
if os.path.exists(ud.moddir):
return False
return True
def _buildhgcommand(self, ud, d, command):
"""
Build up an hg commandline based on ud
command is "fetch", "update", "info"
"""
proto = ud.parm.get('protocol', 'http')
host = ud.host
if proto == "file":
host = "/"
ud.host = "localhost"
if not ud.user:
hgroot = host + ud.path
else:
if ud.pswd:
hgroot = ud.user + ":" + ud.pswd + "@" + host + ud.path
else:
hgroot = ud.user + "@" + host + ud.path
if command == "info":
return "%s identify -i %s://%s/%s" % (ud.basecmd, proto, hgroot, ud.module)
options = [];
# Don't specify revision for the fetch; clone the entire repo.
# This avoids an issue if the specified revision is a tag, because
# the tag actually exists in the specified revision + 1, so it won't
# be available when used in any successive commands.
if ud.revision and command != "fetch":
options.append("-r %s" % ud.revision)
if command == "fetch":
if ud.user and ud.pswd:
cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" clone %s %s://%s/%s %s" % (ud.basecmd, ud.user, ud.pswd, proto, " ".join(options), proto, hgroot, ud.module, ud.module)
else:
cmd = "%s clone %s %s://%s/%s %s" % (ud.basecmd, " ".join(options), proto, hgroot, ud.module, ud.module)
elif command == "pull":
# do not pass options list; limiting pull to rev causes the local
# repo not to contain it and immediately following "update" command
# will crash
if ud.user and ud.pswd:
cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" pull" % (ud.basecmd, ud.user, ud.pswd, proto)
else:
cmd = "%s pull" % (ud.basecmd)
elif command == "update":
if ud.user and ud.pswd:
cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" update -C %s" % (ud.basecmd, ud.user, ud.pswd, proto, " ".join(options))
else:
cmd = "%s update -C %s" % (ud.basecmd, " ".join(options))
else:
raise FetchError("Invalid hg command %s" % command, ud.url)
return cmd
def download(self, ud, d):
"""Fetch url"""
logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
# If the checkout doesn't exist and the mirror tarball does, extract it
if not os.path.exists(ud.pkgdir) and os.path.exists(ud.fullmirror):
bb.utils.mkdirhier(ud.pkgdir)
runfetchcmd("tar -xzf %s" % (ud.fullmirror), d, workdir=ud.pkgdir)
if os.access(os.path.join(ud.moddir, '.hg'), os.R_OK):
# Found the source, check whether need pull
updatecmd = self._buildhgcommand(ud, d, "update")
logger.debug(1, "Running %s", updatecmd)
try:
runfetchcmd(updatecmd, d, workdir=ud.moddir)
except bb.fetch2.FetchError:
# Runnning pull in the repo
pullcmd = self._buildhgcommand(ud, d, "pull")
logger.info("Pulling " + ud.url)
# update sources there
logger.debug(1, "Running %s", pullcmd)
bb.fetch2.check_network_access(d, pullcmd, ud.url)
runfetchcmd(pullcmd, d, workdir=ud.moddir)
try:
os.unlink(ud.fullmirror)
except OSError as exc:
if exc.errno != errno.ENOENT:
raise
# No source found, clone it.
if not os.path.exists(ud.moddir):
fetchcmd = self._buildhgcommand(ud, d, "fetch")
logger.info("Fetch " + ud.url)
# check out sources there
bb.utils.mkdirhier(ud.pkgdir)
logger.debug(1, "Running %s", fetchcmd)
bb.fetch2.check_network_access(d, fetchcmd, ud.url)
runfetchcmd(fetchcmd, d, workdir=ud.pkgdir)
# Even when we clone (fetch), we still need to update as hg's clone
# won't checkout the specified revision if its on a branch
updatecmd = self._buildhgcommand(ud, d, "update")
logger.debug(1, "Running %s", updatecmd)
runfetchcmd(updatecmd, d, workdir=ud.moddir)
def clean(self, ud, d):
""" Clean the hg dir """
bb.utils.remove(ud.localpath, True)
bb.utils.remove(ud.fullmirror)
bb.utils.remove(ud.fullmirror + ".done")
def supports_srcrev(self):
return True
def _latest_revision(self, ud, d, name):
"""
Compute tip revision for the url
"""
bb.fetch2.check_network_access(d, self._buildhgcommand(ud, d, "info"), ud.url)
output = runfetchcmd(self._buildhgcommand(ud, d, "info"), d)
return output.strip()
def _build_revision(self, ud, d, name):
return ud.revision
def _revision_key(self, ud, d, name):
"""
Return a unique key for the url
"""
return "hg:" + ud.moddir
def build_mirror_data(self, ud, d):
# Generate a mirror tarball if needed
if ud.write_tarballs == "1" and not os.path.exists(ud.fullmirror):
# it's possible that this symlink points to read-only filesystem with PREMIRROR
if os.path.islink(ud.fullmirror):
os.unlink(ud.fullmirror)
logger.info("Creating tarball of hg repository")
runfetchcmd("tar -czf %s %s" % (ud.fullmirror, ud.module), d, workdir=ud.pkgdir)
runfetchcmd("touch %s.done" % (ud.fullmirror), d, workdir=ud.pkgdir)
def localpath(self, ud, d):
return ud.pkgdir
def unpack(self, ud, destdir, d):
"""
Make a local clone or export for the url
"""
revflag = "-r %s" % ud.revision
subdir = ud.parm.get("destsuffix", ud.module)
codir = "%s/%s" % (destdir, subdir)
scmdata = ud.parm.get("scmdata", "")
if scmdata != "nokeep":
if not os.access(os.path.join(codir, '.hg'), os.R_OK):
logger.debug(2, "Unpack: creating new hg repository in '" + codir + "'")
runfetchcmd("%s init %s" % (ud.basecmd, codir), d)
logger.debug(2, "Unpack: updating source in '" + codir + "'")
runfetchcmd("%s pull %s" % (ud.basecmd, ud.moddir), d, workdir=codir)
runfetchcmd("%s up -C %s" % (ud.basecmd, revflag), d, workdir=codir)
else:
logger.debug(2, "Unpack: extracting source to '" + codir + "'")
runfetchcmd("%s archive -t files %s %s" % (ud.basecmd, revflag, codir), d, workdir=ud.moddir)
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