pungi/pungi/util.py

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2015-02-10 13:19:34 +00:00
# -*- coding: utf-8 -*-
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import subprocess
import os
import shutil
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import sys
import hashlib
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import errno
import pipes
import re
from kobo.shortcuts import run
from productmd.common import get_major_version
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def _doRunCommand(command, logger, rundir='/tmp', output=subprocess.PIPE, error=subprocess.PIPE, env=None):
"""Run a command and log the output. Error out if we get something on stderr"""
logger.info("Running %s" % subprocess.list2cmdline(command))
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p1 = subprocess.Popen(command, cwd=rundir, stdout=output, stderr=error, universal_newlines=True, env=env,
close_fds=True)
(out, err) = p1.communicate()
if out:
logger.debug(out)
if p1.returncode != 0:
logger.error("Got an error from %s" % command[0])
logger.error(err)
raise OSError, "Got an error (%d) from %s: %s" % (p1.returncode, command[0], err)
def _link(local, target, logger, force=False):
"""Simple function to link or copy a package, removing target optionally."""
if os.path.exists(target) and force:
os.remove(target)
#check for broken links
if force and os.path.islink(target):
if not os.path.exists(os.readlink(target)):
os.remove(target)
try:
os.link(local, target)
except OSError, e:
if e.errno != 18: # EXDEV
logger.error('Got an error linking from cache: %s' % e)
raise OSError, e
# Can't hardlink cross file systems
shutil.copy2(local, target)
def _ensuredir(target, logger, force=False, clean=False):
"""Ensure that a directory exists, if it already exists, only continue
if force is set."""
# We have to check existance of a logger, as setting the logger could
# itself cause an issue.
def whoops(func, path, exc_info):
message = 'Could not remove %s' % path
if logger:
logger.error(message)
else:
sys.stderr(message)
sys.exit(1)
if os.path.exists(target) and not os.path.isdir(target):
message = '%s exists but is not a directory.' % target
if logger:
logger.error(message)
else:
sys.stderr(message)
sys.exit(1)
if not os.path.isdir(target):
os.makedirs(target)
elif force and clean:
shutil.rmtree(target, onerror=whoops)
os.makedirs(target)
elif force:
return
else:
message = 'Directory %s already exists. Use --force to overwrite.' % target
if logger:
logger.error(message)
else:
sys.stderr(message)
sys.exit(1)
def _doCheckSum(path, hash, logger):
"""Generate a checksum hash from a provided path.
Return a string of type:hash"""
# Try to figure out what hash we want to do
try:
sum = hashlib.new(hash)
except ValueError:
logger.error("Invalid hash type: %s" % hash)
return False
# Try to open the file, using binary flag.
try:
myfile = open(path, 'rb')
except IOError, e:
logger.error("Could not open file %s: %s" % (path, e))
return False
# Loop through the file reading chunks at a time as to not
# put the entire file in memory. That would suck for DVDs
while True:
chunk = myfile.read(8192) # magic number! Taking suggestions for better blocksize
if not chunk:
break # we're done with the file
sum.update(chunk)
myfile.close()
return '%s:%s' % (hash, sum.hexdigest())
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def makedirs(path, mode=0o775):
mask = os.umask(0)
try:
os.makedirs(path, mode=mode)
except OSError as ex:
if ex.errno != errno.EEXIST:
raise
os.umask(mask)
def rmtree(path, ignore_errors=False, onerror=None):
"""shutil.rmtree ENOENT (ignoring no such file or directory) errors"""
try:
shutil.rmtree(path, ignore_errors, onerror)
except OSError as ex:
if ex.errno != errno.ENOENT:
raise
def explode_rpm_package(pkg_path, target_dir):
"""Explode a rpm package into target_dir."""
pkg_path = os.path.abspath(pkg_path)
makedirs(target_dir)
run("rpm2cpio %s | cpio -iuvmd && chmod -R a+rX ." % pipes.quote(pkg_path), workdir=target_dir)
def pkg_is_rpm(pkg_obj):
if pkg_is_srpm(pkg_obj):
return False
if pkg_is_debug(pkg_obj):
return False
return True
def pkg_is_srpm(pkg_obj):
if isinstance(pkg_obj, str):
# string, probably N.A, N-V-R.A, N-V-R.A.rpm
for i in (".src", ".nosrc", ".src.rpm", ".nosrc.rpm"):
if pkg_obj.endswith(i):
return True
else:
# package object
if pkg_obj.arch in ("src", "nosrc"):
return True
return False
def pkg_is_debug(pkg_obj):
if pkg_is_srpm(pkg_obj):
return False
if isinstance(pkg_obj, str):
# string
if "-debuginfo" in pkg_obj:
return True
else:
# package object
if "-debuginfo" in pkg_obj.name:
return True
return False
# fomat: [(variant_uid_regex, {arch|*: [data]})]
def get_arch_variant_data(conf, var_name, arch, variant):
result = []
for conf_variant, conf_data in conf.get(var_name, []):
if variant is not None and not re.match(conf_variant, variant.uid):
continue
for conf_arch in conf_data:
if conf_arch != "*" and conf_arch != arch:
continue
if conf_arch == "*" and arch == "src":
# src is excluded from '*' and needs to be explicitly added to the mapping
continue
if isinstance(conf_data[conf_arch], list):
result.extend(conf_data[conf_arch])
else:
result.append(conf_data[conf_arch])
return result
# fomat: {arch|*: [data]}
def get_arch_data(conf, var_name, arch):
result = []
for conf_arch, conf_data in conf.get(var_name, {}).items():
if conf_arch != "*" and conf_arch != arch:
continue
if conf_arch == "*" and arch == "src":
# src is excluded from '*' and needs to be explicitly added to the mapping
continue
if isinstance(conf_data, list):
result.extend(conf_data)
else:
result.append(conf_data)
return result
def get_buildroot_rpms(compose, task_id):
"""Get build root RPMs - either from runroot or local"""
result = []
if task_id:
# runroot
import koji
koji_url = compose.conf["pkgset_koji_url"]
koji_proxy = koji.ClientSession(koji_url)
buildroot_infos = koji_proxy.listBuildroots(taskID=task_id)
buildroot_info = buildroot_infos[-1]
data = koji_proxy.listRPMs(componentBuildrootID=buildroot_info["id"])
for rpm_info in data:
fmt = "%(nvr)s.%(arch)s"
result.append(fmt % rpm_info)
else:
# local
retcode, output = run("rpm -qa --qf='%{name}-%{version}-%{release}.%{arch}\n'")
for i in output.splitlines():
if not i:
continue
result.append(i)
result.sort()
return result
def get_volid(compose, arch, variant=None, escape_spaces=False):
"""Get ISO volume ID for arch and variant"""
if variant and variant.type == "addon":
# addons are part of parent variant media
return None
if variant and variant.type == "layered-product":
product_short = variant.product_short
product_version = variant.product_version
product_is_layered = True
base_product_short = compose.conf["product_short"]
base_product_version = get_major_version(compose.conf["product_version"])
variant_uid = variant.parent.uid
else:
product_short = compose.conf["product_short"]
product_version = compose.conf["product_version"]
product_is_layered = compose.conf["product_is_layered"]
base_product_short = compose.conf.get("base_product_short", "")
base_product_version = compose.conf.get("base_product_version", "")
variant_uid = variant and variant.uid or None
products = [
"%(product_short)s-%(product_version)s %(variant_uid)s.%(arch)s",
"%(product_short)s-%(product_version)s %(arch)s",
]
layered_products = [
"%(product_short)s-%(product_version)s %(base_product_short)s-%(base_product_version)s %(variant_uid)s.%(arch)s",
"%(product_short)s-%(product_version)s %(base_product_short)s-%(base_product_version)s %(arch)s",
]
volid = None
if product_is_layered:
all_products = layered_products + products
else:
all_products = products
for i in all_products:
if not variant_uid and "%(variant_uid)s" in i:
continue
volid = i % locals()
if len(volid) <= 32:
break
# from wrappers.iso import IsoWrapper
# iso = IsoWrapper(logger=compose._logger)
# volid = iso._truncate_volid(volid)
if len(volid) > 32:
raise ValueError("Could not create volume ID <= 32 characters")
if escape_spaces:
volid = volid.replace(" ", r"\x20")
return volid