Various support functions from buildinstall.

Creating directories, the yum.conf file, and cleanup.
This commit is contained in:
David Cantrell 2008-09-12 16:04:02 -10:00
parent aceb9a14ca
commit f16dd41cca

View File

@ -24,6 +24,10 @@ version = (0, 1)
__all__ = ['discinfo', 'treeinfo']
import os
import shutil
import tempfile
import discinfo
import treeinfo
@ -39,3 +43,120 @@ def show_version(prog):
prog = 'pylorax'
print "%s version %d.%d" % (prog, version[0], version[1],)
def collectRepos(args):
"""collectRepos(args)
Get the main repo (the first one) and then build a list of all remaining
repos in the list. Sanitize each repo URL for proper yum syntax.
"""
if args is None or args == []:
return '', []
repolist = []
for repospec in args:
if repospec.startswith('/'):
repolist.append("file://%s" % (repospec,))
elif repospec.startswith('http://') or repospec.startswith('ftp://'):
repolist.append(repospec)
repo = repolist[0]
extrarepos = []
if len(repolist) > 1:
for extra in repolist[1:]:
extrarepos.append(extra)
return repo, extrarepos
def initializeDirs(output):
"""initializeDirs(output)
Create directories used for image generation. The only required
parameter is the main output directory specified by the user.
"""
if not os.path.isdir(output):
os.makedirs(output, mode=0755)
tmpdir = tempfile.gettempdir()
buildinstdir = tempfile.mkdtemp('XXXXXX', 'buildinstall.tree.', tmpdir)
treedir = tempfile.mkdtemp('XXXXXX', 'treedir.', tmpdir)
cachedir = tempfile.mkdtemp('XXXXXX', 'yumcache.' tmpdir)
return buildinstdir, treedir, cachedir
def writeYumConf(cachedir=None, repo=None, extrarepos=[], mirrorlist=[]):
"""writeYumConf(cachedir=None, repo=None, [extrarepos=[], mirrorlist=[]])
Generate a temporary yum.conf file for image generation. The required
parameters are the cachedir that yum should use and the main repo to use.
Optional parameters are a list of extra repositories to add to the
yum.conf file. The mirrorlist parameter is a list of yum mirrorlists
that should be added to the yum.conf file.
Returns the path to the temporary yum.conf file on success, None of failure.
"""
if cachedir is None or repo is None:
return None
tmpdir = tempfile.gettempdir()
(f, yumconf) = tempfile.mkstemp('XXXXXX', 'yum.conf', tmpdir)
f.write("[main]\n")
f.write("cachedir=%s\n" % (cachedir,))
f.write("keepcache=0\n")
f.write("gpgcheck=0\n")
f.write("plugins=0\n")
f.write("reposdir=\n")
f.write("tsflags=nodocs\n\n")
f.write("[anacondarepo]\n")
f.write("name=anaconda repo\n")
f.write("baseurl=%s\n" % (repo,))
f.write("enabled=1\n\n")
if extrarepos != []:
n = 1
for extra in extrarepos:
f.write("[anaconda-extrarepo-%d]\n" % (n,)
f.write("name=anaconda extra repo %d\n" % (n,)
f.write("baseurl=%s\n" % (extra,))
f.write("enabled=1\n")
n += 1
if mirrorlist != []:
n = 1
for mirror in mirrorlist:
f.write("[anaconda-mirrorlistrepo-%d]\n" % (n,)
f.write("name=anaconda mirrorlist repo %d\n" % (n,)
f.write("mirrorlist=%s\n" % (extra,))
f.write("enabled=1\n")
n += 1
f.close()
return yumconf
def cleanup(trash=[])
"""cleanup(trash)
Given a list of things to remove, cleanup() will remove them if it can.
Never fails, just tries to remove things and returns regardless of
failures removing things.
"""
if trash is []:
return
for item in trash:
if os.path.isdir(item):
shutil.rmtree(item, ignore_errors=True)
else:
os.unlink(item)
return