diff options
| -rw-r--r-- | scripts/lib/bsp/help.py | 29 | ||||
| -rw-r--r-- | scripts/lib/bsp/kernel.py | 50 | ||||
| -rwxr-xr-x | scripts/yocto-kernel | 26 |
3 files changed, 105 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 = """ feature add Have a BSP use a feature feature rm Have a BSP stop using a feature features list List the features available to BSPs + feature describe Describe a particular feature See 'yocto-kernel help COMMAND' for more information on a specific command. @@ -723,6 +724,34 @@ DESCRIPTION """ +yocto_kernel_feature_describe_usage = """ + + Print the description and compatibility information for a given kernel feature + + usage: yocto-kernel feature describe <bsp-name> [/xxxx/yyyy/feature.scc ...] + + This command prints the description and compatibility of a specific + feature in the format 'description [compatibility]. +""" + + +yocto_kernel_feature_describe_help = """ + +NAME + yocto-kernel feature describe - print the description and + compatibility information for a given kernel feature + +SYNOPSIS + yocto-kernel feature describe <bsp-name> [/xxxx/yyyy/feature.scc ...] + +DESCRIPTION + This command prints the description and compatibility of a + specific feature in the format 'description [compatibility]. If + the feature doesn't define a description or compatibility, a + string with generic unknown values will be printed. +""" + + ## # yocto-layer help and usage strings ## 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): print_feature_descs(layer, "features") +def find_feature_desc_url(git_url, feature): + """ + Find the url of the kernel feature in the kernel repo specified + from the BSP's kernel recipe SRC_URI. + """ + feature_desc_url = "" + if git_url.startswith("git://"): + git_url = git_url[len("git://"):].strip() + s = git_url.split("/") + if s[1].endswith(".git"): + s[1] = s[1][:len(s[1]) - len(".git")] + feature_desc_url = "http://" + s[0] + "/cgit/cgit.cgi/" + s[1] + \ + "/plain/meta/cfg/kernel-cache/" + feature + "?h=meta" + + return feature_desc_url + + +def get_feature_desc(git_url, feature): + """ + Return a feature description of the form 'description [compatibility] + BSPs, as gathered from the set of feature sources. + """ + feature_desc_url = find_feature_desc_url(git_url, feature) + feature_desc_cmd = "wget -q -O - " + feature_desc_url + tmp = subprocess.Popen(feature_desc_cmd, shell=True, stdout=subprocess.PIPE).stdout.read() + + return find_feature_desc(tmp.split("\n")) + + +def yocto_kernel_feature_describe(scripts_path, machine, feature): + """ + Display the description of a specific kernel feature available for + use in a BSP. + """ + layer = find_bsp_layer(scripts_path, machine) + + kernel = find_current_kernel(layer, machine) + if not kernel: + print "Couldn't determine the kernel for this BSP, exiting." + sys.exit(1) + + context = create_context(machine, "arch", scripts_path) + context["name"] = "name" + context["filename"] = kernel + giturl = find_giturl(context) + + desc = get_feature_desc(giturl, feature) + + print desc + def base_branches(context): """ diff --git a/scripts/yocto-kernel b/scripts/yocto-kernel index a66a727..1f6ed67 100755 --- a/scripts/yocto-kernel +++ b/scripts/yocto-kernel @@ -243,6 +243,29 @@ def yocto_kernel_available_features_list_subcommand(args, usage_str): yocto_kernel_available_features_list(scripts_path, args[0]) +def yocto_kernel_feature_describe_subcommand(args, usage_str): + """ + Command-line handling for listing the description of a specific + kernel feature available for use in a BSP. This includes the + features present in the meta branch(es) of the pointed-to repo(s) + as well as the local features added in recipe-space to the current + BSP as well. The real work is done by + bsp.kernel.yocto_kernel_feature_describe(). + """ + logging.debug("yocto_kernel_feature_describe_subcommand") + + parser = optparse.OptionParser(usage = usage_str) + + (options, args) = parser.parse_args(args) + + if len(args) != 2: + logging.error("Wrong number of arguments, exiting\n") + parser.print_help() + sys.exit(1) + + yocto_kernel_feature_describe(scripts_path, args[0], args[1]) + + subcommands = { "config-list": [yocto_kernel_config_list_subcommand, yocto_kernel_config_list_usage, @@ -274,6 +297,9 @@ subcommands = { "features-list": [yocto_kernel_available_features_list_subcommand, yocto_kernel_available_features_list_usage, yocto_kernel_available_features_list_help], + "feature-describe": [yocto_kernel_feature_describe_subcommand, + yocto_kernel_feature_describe_usage, + yocto_kernel_feature_describe_help], } |
