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graph-tool: add filter subcommand

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Add a filter subcommand to filter a task-depends.dot graph produced by
bitbake -g down to just a subset of targets/tasks.

(From OE-Core rev: a14b274b56676ff0ba55a4048169ad60c9514994)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Paul Eggleton 2020-06-14 21:48:43 -07:00 committed by Richard Purdie
parent 8f7c45c183
commit b87f0746b0
1 changed files with 43 additions and 0 deletions
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43
scripts/contrib/graph-tool
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@ -50,6 +50,40 @@ def find_paths(args):
return 1
def filter_graph(args):
import fnmatch
exclude_tasks = []
if args.exclude_tasks:
for task in args.exclude_tasks.split(','):
if not task.startswith('do_'):
task = 'do_%s' % task
exclude_tasks.append(task)
def checkref(strval):
strval = strval.strip().strip('"')
target, taskname = strval.rsplit('.', 1)
if exclude_tasks:
for extask in exclude_tasks:
if fnmatch.fnmatch(taskname, extask):
return False
if strval in args.ref or target in args.ref:
return True
return False
with open(args.infile, 'r') as f:
for line in f:
line = line.rstrip()
if line.startswith(('digraph', '}')):
print(line)
elif '->' in line:
linesplit = line.split('->')
if checkref(linesplit[0]) and checkref(linesplit[1]):
print(line)
elif (not args.no_nodes) and checkref(line.split()[0]):
print(line)
def main():
parser = argparse_oe.ArgumentParser(description='Small utility for working with .dot graph files')
@ -64,6 +98,15 @@ def main():
parser_find_paths.add_argument('tonode', help='ending node name')
parser_find_paths.set_defaults(func=find_paths)
parser_filter = subparsers.add_parser('filter',
help='Pare down a task graph to contain only the specified references',
description='Pares down a task-depends.dot graph produced by bitbake -g to contain only the specified references')
parser_filter.add_argument('infile', help='Input file')
parser_filter.add_argument('ref', nargs='+', help='Reference to include (either recipe/target name or full target.taskname specification)')
parser_filter.add_argument('-n', '--no-nodes', action='store_true', help='Skip node formatting lines')
parser_filter.add_argument('-x', '--exclude-tasks', help='Comma-separated list of tasks to exclude (do_ prefix optional, wildcards allowed)')
parser_filter.set_defaults(func=filter_graph)
args = parser.parse_args()
ret = args.func(args)