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"""
BitBake 'Fetch' implementation for mercurial DRCS (hg).
"""
# Copyright (C) 2003, 2004 Chris Larson
# Copyright (C) 2004 Marcin Juszkiewicz
# Copyright (C) 2007 Robert Schuster
#
# SPDX-License-Identifier: GPL-2.0-only
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
#
import os
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"
# 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.setup_revisions(d)
if 'rev' in ud.parm:
ud.revision = ud.parm['rev']
elif not ud.revision:
ud.revision = self.latest_revision(ud, d)
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 bb.utils.to_boolean(d.getVar("BB_FETCH_PREMIRRORONLY")):
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" or command == "up":
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":
proto = ud.parm.get('protocol', 'http')
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 + "'")
if ud.user and ud.pswd:
runfetchcmd("%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" pull %s" % (ud.basecmd, ud.user, ud.pswd, proto, ud.moddir), d, workdir=codir)
else:
runfetchcmd("%s pull %s" % (ud.basecmd, ud.moddir), d, workdir=codir)
if ud.user and ud.pswd:
runfetchcmd("%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" up -C %s" % (ud.basecmd, ud.user, ud.pswd, proto, revflag), d, workdir=codir)
else:
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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