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authorTom Zanussi <tom.zanussi@intel.com>2013-03-12 02:46:37 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-03-17 23:10:28 (GMT)
commit2518215438119804290aa8149936ebde0fcc89d3 (patch)
treea3e986b4c29fbf6129516c62e5ec5a4982fa049d /scripts/lib
parent934f2ed2539e046f91a234d30fc4da71ffbe28a0 (diff)
downloadpoky-2518215438119804290aa8149936ebde0fcc89d3.tar.gz
yocto-kernel: add support for printing kernel feature descriptions
Add a yocto-kernel command allowing users to print the description and compatibility of a given kernel feature. (From meta-yocto rev: 73b4f1a8d156af6810cdde3af672d6286a7071e7) Signed-off-by: Tom Zanussi <tom.zanussi@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/lib')
-rw-r--r--scripts/lib/bsp/help.py29
-rw-r--r--scripts/lib/bsp/kernel.py50
2 files changed, 79 insertions, 0 deletions
diff --git a/scripts/lib/bsp/help.py b/scripts/lib/bsp/help.py
index 9ba6a93..91de600 100644
--- a/scripts/lib/bsp/help.py
+++ b/scripts/lib/bsp/help.py
@@ -387,6 +387,7 @@ yocto_kernel_usage = """
387 feature add Have a BSP use a feature 387 feature add Have a BSP use a feature
388 feature rm Have a BSP stop using a feature 388 feature rm Have a BSP stop using a feature
389 features list List the features available to BSPs 389 features list List the features available to BSPs
390 feature describe Describe a particular feature
390 391
391 See 'yocto-kernel help COMMAND' for more information on a specific command. 392 See 'yocto-kernel help COMMAND' for more information on a specific command.
392 393
@@ -723,6 +724,34 @@ DESCRIPTION
723""" 724"""
724 725
725 726
727yocto_kernel_feature_describe_usage = """
728
729 Print the description and compatibility information for a given kernel feature
730
731 usage: yocto-kernel feature describe <bsp-name> [/xxxx/yyyy/feature.scc ...]
732
733 This command prints the description and compatibility of a specific
734 feature in the format 'description [compatibility].
735"""
736
737
738yocto_kernel_feature_describe_help = """
739
740NAME
741 yocto-kernel feature describe - print the description and
742 compatibility information for a given kernel feature
743
744SYNOPSIS
745 yocto-kernel feature describe <bsp-name> [/xxxx/yyyy/feature.scc ...]
746
747DESCRIPTION
748 This command prints the description and compatibility of a
749 specific feature in the format 'description [compatibility]. If
750 the feature doesn't define a description or compatibility, a
751 string with generic unknown values will be printed.
752"""
753
754
726## 755##
727# yocto-layer help and usage strings 756# yocto-layer help and usage strings
728## 757##
diff --git a/scripts/lib/bsp/kernel.py b/scripts/lib/bsp/kernel.py
index 0308600..ac0b074 100644
--- a/scripts/lib/bsp/kernel.py
+++ b/scripts/lib/bsp/kernel.py
@@ -758,6 +758,56 @@ def yocto_kernel_available_features_list(scripts_path, machine):
758 print_feature_descs(layer, "features") 758 print_feature_descs(layer, "features")
759 759
760 760
761def find_feature_desc_url(git_url, feature):
762 """
763 Find the url of the kernel feature in the kernel repo specified
764 from the BSP's kernel recipe SRC_URI.
765 """
766 feature_desc_url = ""
767 if git_url.startswith("git://"):
768 git_url = git_url[len("git://"):].strip()
769 s = git_url.split("/")
770 if s[1].endswith(".git"):
771 s[1] = s[1][:len(s[1]) - len(".git")]
772 feature_desc_url = "http://" + s[0] + "/cgit/cgit.cgi/" + s[1] + \
773 "/plain/meta/cfg/kernel-cache/" + feature + "?h=meta"
774
775 return feature_desc_url
776
777
778def get_feature_desc(git_url, feature):
779 """
780 Return a feature description of the form 'description [compatibility]
781 BSPs, as gathered from the set of feature sources.
782 """
783 feature_desc_url = find_feature_desc_url(git_url, feature)
784 feature_desc_cmd = "wget -q -O - " + feature_desc_url
785 tmp = subprocess.Popen(feature_desc_cmd, shell=True, stdout=subprocess.PIPE).stdout.read()
786
787 return find_feature_desc(tmp.split("\n"))
788
789
790def yocto_kernel_feature_describe(scripts_path, machine, feature):
791 """
792 Display the description of a specific kernel feature available for
793 use in a BSP.
794 """
795 layer = find_bsp_layer(scripts_path, machine)
796
797 kernel = find_current_kernel(layer, machine)
798 if not kernel:
799 print "Couldn't determine the kernel for this BSP, exiting."
800 sys.exit(1)
801
802 context = create_context(machine, "arch", scripts_path)
803 context["name"] = "name"
804 context["filename"] = kernel
805 giturl = find_giturl(context)
806
807 desc = get_feature_desc(giturl, feature)
808
809 print desc
810
761 811
762def base_branches(context): 812def base_branches(context):
763 """ 813 """