def ungrab_pm(self, *ignored, **kwignored):
if self.cachedir:
with lockfile(j(self.cachedir, "ifz-lockfile")):
while self.cachemounts:
while ismount(self.cachemounts[-1]):
logger.debug("Unmounting %s", self.cachemounts[-1])
umount(self.cachemounts[-1])
os.rmdir(self.cachemounts[-1])
self.cachemounts.pop()
if self.pkgmgr_config:
self.pkgmgr_config.close()
self.pkgmgr_config = None
def ungrab_pm(self, *ignored, **kwignored):
if self.cachedir:
with lockfile(j(self.cachedir, "ifz-lockfile")):
while self.cachemounts:
while ismount(self.cachemounts[-1]):
logger.debug("Unmounting %s", self.cachemounts[-1])
umount(self.cachemounts[-1])
os.rmdir(self.cachemounts[-1])
self.cachemounts.pop()
if self.pkgmgr_config:
self.pkgmgr_config.close()
self.pkgmgr_config = None
def grab_pm(self, method):
if self.cachemounts or self.pkgmgr_config:
assert 0, "programming error, invalid state, cannot enter without exiting first"
if method == "in_chroot":
dirforconfig = self.chroot
if os.path.isfile(j(self.chroot, "etc", "dnf", "dnf.conf")):
sourceconf = j(self.chroot, "etc", "dnf", "dnf.conf")
pkgmgr = "dnf"
elif os.path.isfile(j(self.chroot, "etc", "yum.conf")):
sourceconf = j(self.chroot, "etc", "yum.conf")
pkgmgr = "yum"
else:
raise Exception("Cannot use in_chroot method without a working yum or DNF inside the chroot")
ver = self.releasever
elif method == "out_of_chroot":
dirforconfig = os.getenv("TMPDIR") or "/tmp"
if os.path.exists("/etc/dnf/dnf.conf"):
sourceconf = "/etc/dnf/dnf.conf"
pkgmgr = "dnf"
elif os.path.exists("/etc/yum.conf"):
sourceconf = "/etc/yum.conf"
pkgmgr = "yum"
else:
raise Exception("Cannot use out_of_chroot method without a working yum or DNF installed on your system")
ver = self.myreleasever
else:
assert 0, "method unknown: %r" % method
parms = dict(
source=sourceconf,
directory=dirforconfig,
logfile="/dev/null",
debuglevel=2,
reposdir="/nonexistent",
include=None,
keepcache=1 if pkgmgr == "yum" else True,
)
# /yumcache
if self.cachedir:
makedirs([self.cachedir])
with lockfile(j(self.cachedir, "ifz-lockfile")):
# /yumcache/(dnf|yum)/(ver)/(lib|cache)
persistdir = j(self.cachedir, pkgmgr, str(ver), "lib")
cachedir = j(self.cachedir, pkgmgr, str(ver), "cache")
makedirs([persistdir, cachedir])
# /yumcache/(dnf|yum)/(ver)/lock
# /chroot/var/(lib|cache)/(dnf|yum)
persistin, cachein = makedirs([
j(self.chroot, "tmp-%s-%s" % (pkgmgr, x))
for x in ["lib", "cache"]
])
maybemounted = [persistin, cachein]
while maybemounted:
while ismount(maybemounted[-1]):
logger.debug("Preemptively unmounting %s", maybemounted[-1])
umount(maybemounted[-1])
maybemounted.pop()
for x, y in ([persistdir, persistin], [cachedir, cachein]):
logger.debug("Mounting %s to %s", x, y)
self.cachemounts.append(bindmount(x, y))
# /var/(lib|cache)/(dnf|yum)
parms["persistdir"] = persistin[len(self.chroot):]
parms["cachedir"] = cachein[len(self.chroot):]
lock = lockfile(j(self.cachedir, pkgmgr, str(ver), "lock"))
else:
lock = dummylock()
self.pkgmgr_config = make_temp_yum_config(**parms)
return pkgmgr, self.pkgmgr_config, lock
def grab_pm(self, method):
if self.cachemounts or self.pkgmgr_config:
assert 0, "programming error, invalid state, cannot enter without exiting first"
if method == "in_chroot":
dirforconfig = self.chroot
if os.path.isfile(j(self.chroot, "etc", "dnf", "dnf.conf")):
sourceconf = j(self.chroot, "etc", "dnf", "dnf.conf")
pkgmgr = "dnf"
elif os.path.isfile(j(self.chroot, "etc", "yum.conf")):
sourceconf = j(self.chroot, "etc", "yum.conf")
pkgmgr = "yum"
else:
raise Exception("Cannot use in_chroot method without a working yum or DNF inside the chroot")
ver = self.releasever
elif method == "out_of_chroot":
dirforconfig = os.getenv("TMPDIR") or "/tmp"
if os.path.exists("/etc/dnf/dnf.conf"):
sourceconf = "/etc/dnf/dnf.conf"
pkgmgr = "dnf"
elif os.path.exists("/etc/yum.conf"):
sourceconf = "/etc/yum.conf"
pkgmgr = "yum"
else:
raise Exception("Cannot use out_of_chroot method without a working yum or DNF installed on your system")
ver = self.myreleasever
else:
assert 0, "method unknown: %r" % method
parms = dict(
source=sourceconf,
directory=dirforconfig,
logfile="/dev/null",
debuglevel=2,
reposdir="/nonexistent",
include=None,
keepcache=1 if pkgmgr == "yum" else True,
)
# /yumcache
if self.cachedir:
makedirs([self.cachedir])
with lockfile(j(self.cachedir, "ifz-lockfile")):
# /yumcache/(dnf|yum)/(ver)/(lib|cache)
persistdir = j(self.cachedir, pkgmgr, str(ver), "lib")
cachedir = j(self.cachedir, pkgmgr, str(ver), "cache")
makedirs([persistdir, cachedir])
# /yumcache/(dnf|yum)/(ver)/lock
lock = lockfile(j(self.cachedir, pkgmgr, str(ver), "lock"))
# /chroot/var/(lib|cache)/(dnf|yum)
persistin, cachein = makedirs([
j(self.chroot, "tmp-%s-%s" % (pkgmgr, x))
for x in ["lib", "cache"]
])
maybemounted = [persistin, cachein]
while maybemounted:
while ismount(maybemounted[-1]):
logger.debug("Preemptively unmounting %s", maybemounted[-1])
umount(maybemounted[-1])
maybemounted.pop()
for x, y in ([persistdir, persistin], [cachedir, cachein]):
logger.debug("Mounting %s to %s", x, y)
self.cachemounts.append(bindmount(x, y))
# /var/(lib|cache)/(dnf|yum)
parms["persistdir"] = persistin[len(self.chroot):]
parms["cachedir"] = cachein[len(self.chroot):]
else:
lock = dummylock()
self.pkgmgr_config = make_temp_yum_config(**parms)
return pkgmgr, self.pkgmgr_config, lock
