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https://github.com/virt-manager/virt-manager.git
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105 lines
3.1 KiB
Python
105 lines
3.1 KiB
Python
#
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# Copyright 2006-2009, 2013, 2014 Red Hat, Inc.
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#
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# This work is licensed under the GNU GPLv2 or later.
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# See the COPYING file in the top-level directory.
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import logging
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import os
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import shutil
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import subprocess
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import tempfile
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def _run_initrd_commands(initrd, tempdir):
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logging.debug("Appending to the initrd.")
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find_proc = subprocess.Popen(['find', '.', '-print0'],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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cwd=tempdir)
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cpio_proc = subprocess.Popen(['cpio', '--create', '--null', '--quiet',
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'--format=newc', '--owner=+0:+0'],
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stdin=find_proc.stdout,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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cwd=tempdir)
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f = open(initrd, 'ab')
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gzip_proc = subprocess.Popen(['gzip'], stdin=cpio_proc.stdout,
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stdout=f, stderr=subprocess.PIPE)
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cpio_proc.wait()
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find_proc.wait()
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gzip_proc.wait()
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f.close()
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finderr = find_proc.stderr.read()
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cpioerr = cpio_proc.stderr.read()
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gziperr = gzip_proc.stderr.read()
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if finderr:
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logging.debug("find stderr=%s", finderr)
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if cpioerr:
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logging.debug("cpio stderr=%s", cpioerr)
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if gziperr:
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logging.debug("gzip stderr=%s", gziperr)
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def _run_iso_commands(iso, tempdir):
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cmd = ["mkisofs",
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"-o", iso,
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"-J",
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"-input-charset", "utf8",
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"-rational-rock",
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tempdir]
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logging.debug("Running mkisofs: %s", cmd)
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output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
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logging.debug("cmd output: %s", output)
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def _perform_generic_injections(injections, scratchdir, media, cb):
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if not injections:
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return
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tempdir = tempfile.mkdtemp(dir=scratchdir)
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try:
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os.chmod(tempdir, 0o775)
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for filename in injections:
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if type(filename) is tuple:
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filename, dst = filename
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else:
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dst = os.path.basename(filename)
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logging.debug("Injecting src=%s dst=%s into media=%s",
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filename, dst, media)
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shutil.copy(filename, os.path.join(tempdir, dst))
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return cb(media, tempdir)
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finally:
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shutil.rmtree(tempdir)
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def perform_initrd_injections(initrd, injections, scratchdir):
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"""
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Insert files into the root directory of the initial ram disk
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"""
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_perform_generic_injections(injections, scratchdir, initrd,
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_run_initrd_commands)
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def perform_cdrom_injections(injections, scratchdir):
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"""
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Insert files into the root directory of a generated cdrom
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"""
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fileobj = tempfile.NamedTemporaryFile(
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dir=scratchdir, prefix="virtinst-unattended-iso", delete=False)
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iso = fileobj.name
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try:
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_perform_generic_injections(injections, scratchdir, iso,
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_run_iso_commands)
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except Exception:
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os.unlink(iso)
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raise
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return iso
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