pungi/pungi/createiso.py

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# -*- coding: utf-8 -*-
from __future__ import print_function
import os
import pipes
from collections import namedtuple
from .wrappers import iso
from .wrappers.jigdo import JigdoWrapper
CreateIsoOpts = namedtuple('CreateIsoOpts',
['buildinstall_method', 'arch', 'output_dir', 'jigdo_dir',
'iso_name', 'volid', 'graft_points', 'supported', 'os_tree'])
CreateIsoOpts.__new__.__defaults__ = (None,) * len(CreateIsoOpts._fields)
def quote(str):
"""Quote an argument for shell, but make sure $TEMPLATE variable will be
expanded.
"""
if str.startswith('$TEMPLATE'):
return '$TEMPLATE%s' % pipes.quote(str.replace('$TEMPLATE', '', 1))
return pipes.quote(str)
def emit(f, cmd):
"""Print line of shell code into the stream."""
if isinstance(cmd, basestring):
print(cmd, file=f)
else:
print(' '.join([quote(x) for x in cmd]), file=f)
FIND_TEMPLATE_SNIPPET = """
if ! TEMPLATE="$(python3 -c 'import pylorax; print(pylorax.find_templates())')"; then
TEMPLATE=/usr/share/lorax;
fi
""".replace('\n', '')
def make_image(f, opts):
mkisofs_kwargs = {}
if opts.buildinstall_method:
if opts.buildinstall_method == 'lorax':
emit(f, FIND_TEMPLATE_SNIPPET)
mkisofs_kwargs["boot_args"] = iso.get_boot_options(
opts.arch, os.path.join('$TEMPLATE', 'config_files/ppc'))
elif opts.buildinstall_method == 'buildinstall':
mkisofs_kwargs["boot_args"] = iso.get_boot_options(
opts.arch, "/usr/lib/anaconda-runtime/boot")
# ppc(64) doesn't seem to support utf-8
if opts.arch in ("ppc", "ppc64", "ppc64le"):
mkisofs_kwargs["input_charset"] = None
cmd = iso.get_mkisofs_cmd(opts.iso_name, None, volid=opts.volid,
exclude=["./lost+found"],
graft_points=opts.graft_points, **mkisofs_kwargs)
emit(f, cmd)
def implant_md5(f, opts):
cmd = iso.get_implantisomd5_cmd(opts.iso_name, opts.supported)
emit(f, cmd)
def run_isohybrid(f, opts):
"""If the image is bootable, it should include an MBR or GPT so that it can
be booted when written to USB disk. This is done by running isohybrid on
the image.
"""
if opts.buildinstall_method and opts.arch in ["x86_64", "i386"]:
cmd = iso.get_isohybrid_cmd(opts.iso_name, opts.arch)
emit(f, cmd)
def make_manifest(f, opts):
emit(f, iso.get_manifest_cmd(opts.iso_name))
def make_jigdo(f, opts):
jigdo = JigdoWrapper()
files = [
{
"path": opts.os_tree,
"label": None,
"uri": None,
}
]
cmd = jigdo.get_jigdo_cmd(os.path.join(opts.output_dir, opts.iso_name),
files, output_dir=opts.jigdo_dir,
no_servers=True, report="noprogress")
emit(f, cmd)
def write_script(opts, f):
if bool(opts.jigdo_dir) != bool(opts.os_tree):
raise RuntimeError('jigdo_dir must be used together with os_tree')
emit(f, "#!/bin/bash")
emit(f, "set -ex")
emit(f, "cd %s" % opts.output_dir)
make_image(f, opts)
run_isohybrid(f, opts)
implant_md5(f, opts)
make_manifest(f, opts)
if opts.jigdo_dir:
make_jigdo(f, opts)