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yocto-kernel: add support for destroying recipe-space kernel features

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Add a yocto-kernel command allowing users to destroy a recipe-space
kernel feature local to a particular BSP.  The removed feature is
subsequently no longer available for the normal feature addition and
removal yocto-kernel commands.

(From meta-yocto rev: faa18f56d9412694f2c8e0b0c09e751cb7f3a743)

Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Tom Zanussi
2013-03-11 22:36:44 -05:00
committed by Richard Purdie
parent 5edc7af428
commit 8c9320cc92
3 changed files with 133 additions and 0 deletions
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79
scripts/lib/bsp/kernel.py
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@@ -910,6 +910,85 @@ def yocto_kernel_feature_create(scripts_path, machine, feature_items):
print "\t%s" % feature_dirname + "/" + feature
def feature_in_use(scripts_path, machine, feature):
"""
Determine whether the specified feature is in use by the BSP.
Return True if so, False otherwise.
"""
features = read_features(scripts_path, machine)
for f in features:
if f == feature:
return True
return False
def feature_remove(scripts_path, machine, feature):
"""
Remove the specified feature from the available recipe-space
features defined for the BSP.
"""
features = read_features(scripts_path, machine)
new_features = []
for f in features:
if f == feature:
continue
new_features.append(f)
write_features(scripts_path, machine, new_features)
def yocto_kernel_feature_destroy(scripts_path, machine, feature):
"""
Remove a recipe-space kernel feature from a BSP.
"""
if not check_feature_name(feature):
sys.exit(1)
if feature_in_use(scripts_path, machine, "features/" + feature) or \
feature_in_use(scripts_path, machine, "cfg/" + feature):
print "Feature %s is in use (use 'feature rm' to un-use it first), exiting" % feature
sys.exit(1)
filesdir = find_filesdir(scripts_path, machine)
if not filesdir:
print "Couldn't destroy feature (%s), no 'files' dir found" % feature
sys.exit(1)
feature_dirname = "features"
featdir = os.path.join(filesdir, feature_dirname)
if not os.path.exists(featdir):
print "Couldn't find feature directory (%s)" % feature_dirname
sys.exit(1)
feature_fqn = os.path.join(featdir, feature)
if not os.path.exists(feature_fqn):
feature_dirname = "cfg"
featdir = os.path.join(filesdir, feature_dirname)
if not os.path.exists(featdir):
print "Couldn't find feature directory (%s)" % feature_dirname
sys.exit(1)
feature_fqn = os.path.join(featdir, feature_filename)
if not os.path.exists(feature_fqn):
print "Couldn't find feature (%s)" % feature
sys.exit(1)
f = open(feature_fqn, "r")
lines = f.readlines()
for line in lines:
s = line.strip()
if s.startswith("patch ") or s.startswith("kconf "):
split_line = s.split()
filename = os.path.join(featdir, split_line[-1])
if os.path.exists(filename):
os.remove(filename)
f.close()
os.remove(feature_fqn)
feature_remove(scripts_path, machine, feature)
print "Removed feature:"
print "\t%s" % feature_dirname + "/" + feature
def base_branches(context):
"""
Return a list of the base branches found in the kernel git repo.