def depGraph(self, rpmChooser, alreadyInstalled):
rv = Graph()
# create a graph node for each RPM
for rpm in self.rpms:
gn = GraphNode(rpm, [])
rv.addNodes(gn)
# populate adjacency lists:
def findGraphNode(graph, rpm):
for x in graph:
if x.name == rpm:
return x
for node in rv:
for p in node.name.depends:
if p in alreadyInstalled:
continue
# not interested in rpmlib(...) style deps.
if p[0][:7] != "rpmlib(":
rpmd = self.whoProvides(p)
if len(rpmd) > 0:
rpmProvider = rpmChooser(p, rpmd)
if len(filter(lambda x: x.name.rpmname == rpmProvider.rpmname, node.adj)) == 0:
node.adj.append(findGraphNode(rv, rpmProvider))
else:
_log(3, "Warning: dependency not satisfied: %s requires %s" % (node.name.rpmname, [p]))
return rv
def solveDeps(self, repoList, rpmChooser, alreadyInstalled=[]):
# first make sure we have all the RPMs in this RPMSet that
# we need in order to install each RPM in the set
changed = False
loop = True
while loop:
for rpm in self.rpms:
# check each package's deps are satisfied:
for p in rpm.depends:
if p[0][:7] != "rpmlib(" and p[0] not in alreadyInstalled:
if len(self.whoProvides(p)) == 0:
# we need to get another package from
# the repo set:
possibles = []
for repo in repoList:
possibles += repo.whoProvides(p)
if len(possibles) == 0:
_log(
2, "dep %s in %s not resolved." %
(p, rpm.rpmname))
else:
# do we already have any of the providers:
install = True
for x in possibles:
if x.packagename in alreadyInstalled:
install = False
if install:
actual = rpmChooser(p, possibles)
if actual not in self.rpms:
_log(
2,
"Including %s to provide %s for %s"
% (actual.rpmname, p, rpm.rpmname))
self.addRPM(actual)
changed = True
if not changed:
loop = False
else:
changed = False
self._deps_solved = True
def graph(installdef, repos):
packagelist = getPackageList(installdef, repos)
installation_set = xgi.rpmtools.RPMSet()
for p in packagelist:
rpm = selectRPM(p, repos)
if not rpm:
_log(3, "Warning: No RPM provides %s; package ignored." % p)
else:
installation_set.addRPM(rpm)
# pull in dependencies:
installation_set.solveDeps([rpmset for (_, rpmset) in repos], rpmChooser)
# produce dependency graph:
graph = installation_set.depGraph(rpmChooser, [])
print "digraph {"
for node in graph:
print ' "' + node.name.packagename + '"'
for adj in node.adj:
print ' "%s" -> "%s"' % (node.name.packagename, adj.name.packagename)
print "}"
def graph(installdef, repos):
packagelist = getPackageList(installdef, repos)
installation_set = xgi.rpmtools.RPMSet()
for p in packagelist:
rpm = selectRPM(p, repos)
if not rpm:
_log(3, "Warning: No RPM provides %s; package ignored." % p)
else:
installation_set.addRPM(rpm)
# pull in dependencies:
installation_set.solveDeps([rpmset for (_, rpmset) in repos], rpmChooser)
# produce dependency graph:
graph = installation_set.depGraph(rpmChooser, [])
print "digraph {"
for node in graph:
print ' "' + node.name.packagename + '"'
for adj in node.adj:
print ' "%s" -> "%s"' % (node.name.packagename,
adj.name.packagename)
print "}"
def solveDeps(self, repoList, rpmChooser, alreadyInstalled = []):
# first make sure we have all the RPMs in this RPMSet that
# we need in order to install each RPM in the set
changed = False
loop = True
while loop:
for rpm in self.rpms:
# check each package's deps are satisfied:
for p in rpm.depends:
if p[0][:7] != "rpmlib(" and p[0] not in alreadyInstalled:
if len(self.whoProvides(p)) == 0:
# we need to get another package from
# the repo set:
possibles = []
for repo in repoList:
possibles += repo.whoProvides(p)
if len(possibles) == 0:
_log(2, "dep %s in %s not resolved." % (p, rpm.rpmname))
else:
# do we already have any of the providers:
install = True
for x in possibles:
if x.packagename in alreadyInstalled:
install = False
if install:
actual = rpmChooser(p, possibles)
if actual not in self.rpms:
_log(2, "Including %s to provide %s for %s" % (actual.rpmname, p, rpm.rpmname))
self.addRPM(actual)
changed = True
if not changed:
loop = False
else:
changed = False
self._deps_solved = True
def depGraph(self, rpmChooser, alreadyInstalled):
rv = Graph()
# create a graph node for each RPM
for rpm in self.rpms:
gn = GraphNode(rpm, [])
rv.addNodes(gn)
# populate adjacency lists:
def findGraphNode(graph, rpm):
for x in graph:
if x.name == rpm:
return x
for node in rv:
for p in node.name.depends:
if p in alreadyInstalled:
continue
# not interested in rpmlib(...) style deps.
if p[0][:7] != "rpmlib(":
rpmd = self.whoProvides(p)
if len(rpmd) > 0:
rpmProvider = rpmChooser(p, rpmd)
if len(
filter(
lambda x: x.name.rpmname == rpmProvider.
rpmname, node.adj)) == 0:
node.adj.append(findGraphNode(rv, rpmProvider))
else:
_log(
3,
"Warning: dependency not satisfied: %s requires %s"
% (node.name.rpmname, [p]))
return rv
# it's a file, check capabilities then files:
# (some 'files' are listed in the packages section
# because they are symlinks created by pre/post
# install script).
return (p2, None) in self.provides or p2 in self.files
else:
# it's a package, check packages:
return (p2, v2) in self.provides
# is (p1,v1) compatible with (p2,v2)?
def package_compatible((p1, v1), (p2, v2)):
# this is grim - we should check the version really:
try:
rv = (p1 == p2)
except UnicodeDecodeError, u:
_log(1, "Unicode error: %s" % u)
_log(1, "p1: %s" % p1)
_log(1, "p2: %s" % p2)
return False
return rv
package_compatible = staticmethod(package_compatible)
# Represents a set of RPMs, e.g. a repository or an installation
# set.
class RPMSet:
def __init__(self):
self.rpms = [] # RPMs in db
self.rpmmap = {} # pkg-id => rpm
def doInstall(installdef,
root,
repos,
test=False,
clean=False,
rpmtoolpath="rpm",
sudotoolpath="sudo",
manifest_file=None,
bootstrapping=False):
_log(1, "Preparing installation directory...")
if bootstrapping:
_log(1, "********* BOOTSTRAPPING STAGE ********")
else:
_log(1, "********* MAIN INSTALL STAGE ********")
# set up 'action' to run commands - maybe we actually need
# to implement a function for this at some point?
if test:
action = lambda x: _log(1, "run: %s" % x)
else:
action = lambda x: os.system(x)
# make sure destination exists:
updating = os.path.isdir(root) and not clean
if not updating:
_log(1, "(Initialising a chroot.)")
if not os.path.isdir(root):
os.mkdir(root)
else:
_log(1, "(Updating a chroot.)")
def makedirs_p(d):
if not os.path.exists(d):
os.makedirs(d)
if not test and not updating:
makedirs_p(os.path.join(root, "dev"))
os.system("%s mknod --mode=0666 %s/dev/null c 1 3" % \
(sudotoolpath, root))
makedirs_p(os.path.join(root, "proc"))
makedirs_p(os.path.join(root, "etc"))
makedirs_p(os.path.join(root, "sys"))
makedirs_p(os.path.join(root, "var", "tmp"))
makedirs_p(os.path.join(root, "var", "lock", "rpm"))
makedirs_p(os.path.join(root, "var", "lib", "rpm"))
for d in ['dev', os.path.join("dev", "null"), 'proc', 'etc', 'sys']:
os.system("%s chown root:root '%s/%s'" % \
(sudotoolpath, root, d))
else:
_log(1, "Make /dev /proc /etc /sys /var/lib/rpm")
# helper function to find an rpm binary inside a chroot:
def rpm_in_chroot(root):
paths = ['usr/bin/rpm', 'bin/rpm']
return True in [
os.path.exists("%s/%s" % (root, path)) for path in paths
]
def rpm(root, cmdline):
if rpm_in_chroot(root):
return action("%s chroot %s rpm %s" %
(sudotoolpath, root, cmdline))
else:
return action("%s %s root='%s' %s" %
(sudotoolpath, rpmtoolpath, root, cmdline))
# create an empty fstab and mtab, and initial device nodes:
if not updating:
action("%s touch %s" % (sudotoolpath, os.path.join(root, "etc/fstab")))
action("%s touch %s" % (sudotoolpath, os.path.join(root, "etc/mtab")))
if not bootstrapping:
rpm(root, "--initdb")
alreadyInstalled = []
if updating:
_log(2, "Checking which packages are already installed...")
if rpm_in_chroot(root):
pipe = popen2.Popen3("%s chroot %s rpm -qa --qf '%%{NAME}\n'" %
(sudotoolpath, root))
else:
pipe = popen2.Popen3("%s --root %s -qa --qf '%%{NAME}\n'" %
(rpmtoolpath, root))
alreadyInstalled = [x.rstrip() for x in pipe.fromchild.readlines()]
if pipe.wait() != 0:
alreadyInstalled = []
_log(2, "Check for currently installed packages failed")
_log(1, "Determining packages to install...")
packagelist = getPackageList(installdef, repos)
packagelist = filter(lambda x: x not in alreadyInstalled, packagelist)
# create an installation RPM set:
installation_set = xgi.rpmtools.RPMSet()
for p in packagelist:
rpmfile = selectRPM(p, repos)
if not rpmfile:
_log(2, "Warning: No RPM provides %s: package ignored." % p)
else:
_log(
2,
"Installing %s to provide %s which was on the command-line" %
(rpmfile.rpmname, p))
installation_set.addRPM(rpmfile)
_log(1, "Solving dependencies...")
installation_set.solveDeps([rpmset for (_, rpmset) in repos],
rpmChooser,
alreadyInstalled=alreadyInstalled)
_log(1, "Computing installation order...")
installation_order = installation_set.getInstallOrder(
rpmChooser, alreadyInstalled=alreadyInstalled)
_log(1, "Performing installation...")
_log(2, "Installing RPM Packages...")
# create the RPM database if we're initialising:
if not updating and not bootstrapping:
rpm(root, '--initdb')
for x in installation_order:
if bootstrapping:
for p in [y.rpmname for y in x]:
_log(2, "Processing %s: " % os.path.basename(p))
rc = action("cd %s && (rpm2cpio %s | %s cpio -idu)" %
(root, p, sudotoolpath))
if rc != 0:
raise RuntimeError, "Error extracting %s during bootstrapping." % p
_log(
2, "Removing configuration files for %s" %
os.path.basename(p))
pipe = os.popen("rpm -qcp %s" % p)
for line in pipe:
line = line.lstrip('/').strip()
if line != "" and line != "(contains no files)":
path = os.path.join(root, line)
action("%s rm -f %s" % (sudotoolpath, path))
pipe.close()
else:
if rpm_in_chroot(root):
# copy in the files, then install them from within:
rpmfiles = [y.rpmname for y in x]
for rpmfile in rpmfiles:
if action("%s cp %s %s" %
(sudotoolpath, rpmfile, os.path.join(
root, 'tmp'))) != 0:
raise RuntimeError, "Error copying %s to the chroot for extraction using inner RPM." % rpmfile
packages = [
'/tmp/%s' % os.path.basename(rpmfile)
for rpmfile in rpmfiles
]
pkg_string = " ".join(packages)
_log(2, "Installing %s using rpm inside chroot." % pkg_string)
rc = rpm(root, '--force -ivh %s' % pkg_string)
for rpmfile in rpmfiles:
pkgpath = os.path.join(root, 'tmp',
os.path.basename(rpmfile))
action("%s rm %s" % (sudotoolpath, pkgpath))
else:
# install from outside:
packages = " ".join(map(lambda x: x.rpmname, x))
_log(2, "Installing %s from outside the chroot." % packages)
rc = rpm(root, '--force -ivh %s' % packages)
if manifest_file:
for p in [y.rpmname for y in x]:
manifest_file.write("%s %d\n" % (p, rc))
_log(2, "Package installation complete.")
_log(1, "Cleaning up")
action("%s umount -l %s" % (sudotoolpath, os.path.join(root, "proc")))
_log(1, "Guest installation complete!")
def rpmChooser(package, rpms):
if len(rpms) > 1:
_log(
2, "Choices for %s: %s - choosing %s" %
(package, [x.packagename for x in rpms], rpms[0].packagename))
return rpms[0]
# it's a file, check capabilities then files:
# (some 'files' are listed in the packages section
# because they are symlinks created by pre/post
# install script).
return (p2, None) in self.provides or p2 in self.files
else:
# it's a package, check packages:
return (p2, v2) in self.provides
# is (p1,v1) compatible with (p2,v2)?
def package_compatible((p1,v1), (p2,v2)):
# this is grim - we should check the version really:
try:
rv = (p1 == p2)
except UnicodeDecodeError, u:
_log(1, "Unicode error: %s" % u)
_log(1, "p1: %s" % p1)
_log(1, "p2: %s" % p2)
return False
return rv
package_compatible = staticmethod(package_compatible)
# Represents a set of RPMs, e.g. a repository or an installation
# set.
class RPMSet:
def __init__(self):
self.rpms = [] # RPMs in db
self.rpmmap = {} # pkg-id => rpm
def doInstall(installdef, root, repos,
test = False,
clean = False,
rpmtoolpath = "rpm",
sudotoolpath = "sudo",
manifest_file = None,
bootstrapping = False):
_log(1, "Preparing installation directory...")
if bootstrapping:
_log(1, "********* BOOTSTRAPPING STAGE ********")
else:
_log(1, "********* MAIN INSTALL STAGE ********")
# set up 'action' to run commands - maybe we actually need
# to implement a function for this at some point?
if test:
action = lambda x: _log(1, "run: %s" % x)
else:
action = lambda x: os.system(x)
# make sure destination exists:
updating = os.path.isdir(root) and not clean
if not updating:
_log(1, "(Initialising a chroot.)")
if not os.path.isdir(root):
os.mkdir(root)
else:
_log(1, "(Updating a chroot.)")
def makedirs_p(d):
if not os.path.exists(d):
os.makedirs(d)
if not test and not updating:
makedirs_p(os.path.join(root, "dev"))
os.system("%s mknod --mode=0666 %s/dev/null c 1 3" % \
(sudotoolpath, root))
makedirs_p(os.path.join(root, "proc"))
makedirs_p(os.path.join(root, "etc"))
makedirs_p(os.path.join(root, "sys"))
makedirs_p(os.path.join(root, "var", "tmp"))
makedirs_p(os.path.join(root, "var", "lock", "rpm"))
makedirs_p(os.path.join(root, "var", "lib", "rpm"))
for d in ['dev', os.path.join("dev", "null"), 'proc', 'etc', 'sys']:
os.system("%s chown root:root '%s/%s'" % \
(sudotoolpath, root, d))
else:
_log(1, "Make /dev /proc /etc /sys /var/lib/rpm")
# helper function to find an rpm binary inside a chroot:
def rpm_in_chroot(root):
paths = [ 'usr/bin/rpm', 'bin/rpm' ]
return True in [ os.path.exists("%s/%s" % (root, path)) for path in paths ]
def rpm(root, cmdline):
if rpm_in_chroot(root):
return action("%s chroot %s rpm %s" % (sudotoolpath, root, cmdline))
else:
return action("%s %s root='%s' %s" % (sudotoolpath, rpmtoolpath, root, cmdline))
# create an empty fstab and mtab, and initial device nodes:
if not updating:
action("%s touch %s" % (sudotoolpath, os.path.join(root, "etc/fstab")))
action("%s touch %s" % (sudotoolpath, os.path.join(root, "etc/mtab")))
if not bootstrapping:
rpm(root, "--initdb")
alreadyInstalled = []
if updating:
_log(2, "Checking which packages are already installed...")
if rpm_in_chroot(root):
pipe = popen2.Popen3("%s chroot %s rpm -qa --qf '%%{NAME}\n'" % (sudotoolpath, root))
else:
pipe = popen2.Popen3("%s --root %s -qa --qf '%%{NAME}\n'" % (rpmtoolpath, root))
alreadyInstalled = [x.rstrip() for x in pipe.fromchild.readlines()]
if pipe.wait() != 0:
alreadyInstalled = []
_log(2, "Check for currently installed packages failed")
_log(1, "Determining packages to install...")
packagelist = getPackageList(installdef, repos)
packagelist = filter(lambda x: x not in alreadyInstalled, packagelist)
# create an installation RPM set:
installation_set = xgi.rpmtools.RPMSet()
for p in packagelist:
rpmfile = selectRPM(p, repos)
if not rpmfile:
_log(2, "Warning: No RPM provides %s: package ignored." % p)
else:
_log(2, "Installing %s to provide %s which was on the command-line" % (rpmfile.rpmname, p))
installation_set.addRPM(rpmfile)
_log(1, "Solving dependencies...")
installation_set.solveDeps([rpmset for (_, rpmset) in repos], rpmChooser, alreadyInstalled = alreadyInstalled)
_log(1, "Computing installation order...")
installation_order = installation_set.getInstallOrder(rpmChooser, alreadyInstalled = alreadyInstalled)
_log(1, "Performing installation...")
_log(2, "Installing RPM Packages...")
# create the RPM database if we're initialising:
if not updating and not bootstrapping:
rpm(root, '--initdb')
for x in installation_order:
if bootstrapping:
for p in [y.rpmname for y in x]:
_log(2, "Processing %s: " % os.path.basename(p))
rc = action("cd %s && (rpm2cpio %s | %s cpio -idu)" % (root, p, sudotoolpath))
if rc != 0:
raise RuntimeError, "Error extracting %s during bootstrapping." % p
_log(2, "Removing configuration files for %s" % os.path.basename(p))
pipe = os.popen("rpm -qcp %s" % p)
for line in pipe:
line = line.lstrip('/').strip()
if line != "" and line != "(contains no files)":
path = os.path.join(root, line)
action("%s rm -f %s" % (sudotoolpath, path))
pipe.close()
else:
if rpm_in_chroot(root):
# copy in the files, then install them from within:
rpmfiles = [y.rpmname for y in x]
for rpmfile in rpmfiles:
if action("%s cp %s %s" % (sudotoolpath, rpmfile, os.path.join(root, 'tmp'))) != 0:
raise RuntimeError, "Error copying %s to the chroot for extraction using inner RPM." % rpmfile
packages = ['/tmp/%s' % os.path.basename(rpmfile) for rpmfile in rpmfiles]
pkg_string = " ".join(packages)
_log(2, "Installing %s using rpm inside chroot." % pkg_string)
rc = rpm(root, '--force -ivh %s' % pkg_string)
for rpmfile in rpmfiles:
pkgpath = os.path.join(root, 'tmp', os.path.basename(rpmfile))
action("%s rm %s" % (sudotoolpath, pkgpath))
else:
# install from outside:
packages = " ".join(map(lambda x: x.rpmname, x))
_log(2, "Installing %s from outside the chroot." % packages)
rc = rpm(root, '--force -ivh %s' % packages)
if manifest_file:
for p in [y.rpmname for y in x]:
manifest_file.write("%s %d\n" % (p, rc))
_log(2, "Package installation complete.")
_log(1, "Cleaning up")
action("%s umount -l %s" % (sudotoolpath, os.path.join(root, "proc")))
_log(1, "Guest installation complete!")
def rpmChooser(package, rpms):
if len(rpms) > 1:
_log(2, "Choices for %s: %s - choosing %s" % (package, [x.packagename for x in rpms], rpms[0].packagename))
return rpms[0]
