163 lines
4.5 KiB
Python
163 lines
4.5 KiB
Python
#
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# pylorax
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# Install image and tree support data generation tool -- Python module.
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#
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# Copyright (C) 2008 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Author(s): David Cantrell <dcantrell@redhat.com>
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#
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version = (0, 1)
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__all__ = ['discinfo', 'treeinfo']
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import os
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import shutil
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import tempfile
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import discinfo
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import treeinfo
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def show_version(prog):
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"""show_version(prog)
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Display program name (prog) and version number. If prog is an empty
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string or None, use the value 'pylorax'.
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"""
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if prog is None or prog == '':
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prog = 'pylorax'
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print "%s version %d.%d" % (prog, version[0], version[1],)
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def collectRepos(args):
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"""collectRepos(args)
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Get the main repo (the first one) and then build a list of all remaining
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repos in the list. Sanitize each repo URL for proper yum syntax.
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"""
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if args is None or args == []:
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return '', []
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repolist = []
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for repospec in args:
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if repospec.startswith('/'):
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repolist.append("file://%s" % (repospec,))
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elif repospec.startswith('http://') or repospec.startswith('ftp://'):
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repolist.append(repospec)
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repo = repolist[0]
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extrarepos = []
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if len(repolist) > 1:
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for extra in repolist[1:]:
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extrarepos.append(extra)
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return repo, extrarepos
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def initializeDirs(output):
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"""initializeDirs(output)
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Create directories used for image generation. The only required
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parameter is the main output directory specified by the user.
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"""
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if not os.path.isdir(output):
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os.makedirs(output, mode=0755)
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tmpdir = tempfile.gettempdir()
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buildinstdir = tempfile.mkdtemp('XXXXXX', 'buildinstall.tree.', tmpdir)
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treedir = tempfile.mkdtemp('XXXXXX', 'treedir.', tmpdir)
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cachedir = tempfile.mkdtemp('XXXXXX', 'yumcache.', tmpdir)
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return buildinstdir, treedir, cachedir
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def writeYumConf(cachedir=None, repo=None, extrarepos=[], mirrorlist=[]):
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"""writeYumConf(cachedir=None, repo=None, [extrarepos=[], mirrorlist=[]])
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Generate a temporary yum.conf file for image generation. The required
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parameters are the cachedir that yum should use and the main repo to use.
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Optional parameters are a list of extra repositories to add to the
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yum.conf file. The mirrorlist parameter is a list of yum mirrorlists
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that should be added to the yum.conf file.
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Returns the path to the temporary yum.conf file on success, None of failure.
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"""
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if cachedir is None or repo is None:
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return None
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tmpdir = tempfile.gettempdir()
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(f, yumconf) = tempfile.mkstemp('XXXXXX', 'yum.conf', tmpdir)
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f.write("[main]\n")
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f.write("cachedir=%s\n" % (cachedir,))
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f.write("keepcache=0\n")
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f.write("gpgcheck=0\n")
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f.write("plugins=0\n")
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f.write("reposdir=\n")
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f.write("tsflags=nodocs\n\n")
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f.write("[anacondarepo]\n")
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f.write("name=anaconda repo\n")
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f.write("baseurl=%s\n" % (repo,))
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f.write("enabled=1\n\n")
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if extrarepos != []:
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n = 1
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for extra in extrarepos:
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f.write("[anaconda-extrarepo-%d]\n" % (n,))
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f.write("name=anaconda extra repo %d\n" % (n,))
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f.write("baseurl=%s\n" % (extra,))
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f.write("enabled=1\n")
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n += 1
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if mirrorlist != []:
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n = 1
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for mirror in mirrorlist:
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f.write("[anaconda-mirrorlistrepo-%d]\n" % (n,))
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f.write("name=anaconda mirrorlist repo %d\n" % (n,))
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f.write("mirrorlist=%s\n" % (extra,))
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f.write("enabled=1\n")
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n += 1
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f.close()
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return yumconf
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def cleanup(trash=[]):
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"""cleanup(trash)
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Given a list of things to remove, cleanup() will remove them if it can.
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Never fails, just tries to remove things and returns regardless of
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failures removing things.
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"""
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if trash is []:
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return
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for item in trash:
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if os.path.isdir(item):
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shutil.rmtree(item, ignore_errors=True)
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else:
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os.unlink(item)
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return
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