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def manifest_to_file_list(manifest_fn):
"""
open a manifest file and read it into a list
manifest_fn -- the manifest file to read
"""
image_manifest_list = []
with open(manifest_fn) as image:
image_manifest_list = image.read().splitlines()
return image_manifest_list
def delta_contents(difflist):
"""
Generate a list of files which exist in the bundle image but not the base
image
'- ' - line unique to lhs
'+ ' - line unique to rhs
' ' - line common
'? ' - line not present in either
returns a list containing the items which are unique in the rhs
difflist --- a list containing the output of difflib.Differ.compare
where the lhs (left-hand-side) was the base image and the rhs
(right-hand-side) was base image + extras (the bundle image).
"""
cont = []
for ln in difflist:
if ln[0] == '+':
cont.append(ln[3:])
return cont
def unique_contents(base_manifest_fn, image_manifest_fn):
"""
Get a list of files unique to the bundle image
Compare the bundle image manifest to the base image manifest and return
a list of files unique to the bundle image.
base_manifest_fn -- the base image manifest
image_manifest_fn -- the bundle image manifest
"""
import difflib
differ = difflib.Differ()
base_manifest_list = []
with open(base_manifest_fn) as base:
base_manifest_list = base.read().splitlines()
image_manifest_list = []
with open(image_manifest_fn) as image:
image_manifest_list = image.read().splitlines()
delta = list(differ.compare(base_manifest_list, image_manifest_list))
return delta_contents(delta)
# FIXME: Mariano proposed a similar method to OE-Core for package_manager
def get_package_manager(d, dest):
"""
Instantiate an instance of the PM object for the image's package manager
d -- the bitbake datastore
dest -- the target / of any package manager operations
"""
from oe.package_manager import RpmPM
from oe.package_manager import OpkgPM
from oe.package_manager import DpkgPM
ptype = d.getVar('IMAGE_PKGTYPE', True)
pm = None
if ptype == 'rpm':
pm = RpmPM(d, dest,
d.getVar('TARGET_VENDOR', True))
elif ptype == 'ipk':
pm = OpkgPM(d, dest,
d.getVar('IPKGCONF_TARGET', True),
d.getVar('ALL_MULTILIB_PACKAGE_ARCHS', True))
elif ptype == 'deb':
pm = DpkgPM(d, dest,
d.getVar('PACKAGE_ARCHS', True),
d.getVar('DPKG_ARCH', True))
pm.write_index()
pm.update()
return pm
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