7bbeddeee1
We've talked about having this for long enough. Add a command which queries a single variable value with history. This saves "bitbake -e | grep" and avoids the various pitfalls that has. It also provides a neat example of using tinfoil to make such a query. Parameters to limit the output to just the value, to limit to a variable flag and to not expand the output are provided. [YOCTO #10748] (Bitbake rev: 4c1881b620e885f55d7772f8626b8a76c2828333) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
1.7 KiB
Executable File
#! /usr/bin/env python3
Copyright (C) 2021 Richard Purdie
SPDX-License-Identifier: GPL-2.0-only
import argparse import io import os import sys
bindir = os.path.dirname(file) topdir = os.path.dirname(bindir) sys.path[0:0] = [os.path.join(topdir, 'lib')]
import bb.tinfoil
if name == "main": parser = argparse.ArgumentParser(description="Bitbake Query Variable") parser.add_argument("variable", help="variable name to query") parser.add_argument("-r", "--recipe", help="Recipe name to query", default=None, required=False) parser.add_argument('-u', '--unexpand', help='Do not expand the value (with --value)', action="store_true") parser.add_argument('-f', '--flag', help='Specify a variable flag to query (with --value)', default=None) parser.add_argument('--value', help='Only report the value, no history and no variable name', action="store_true") args = parser.parse_args()
if args.unexpand and not args.value:
print("--unexpand only makes sense with --value")
sys.exit(1)
if args.flag and not args.value:
print("--flag only makes sense with --value")
sys.exit(1)
with bb.tinfoil.Tinfoil(tracking=True) as tinfoil:
if args.recipe:
tinfoil.prepare(quiet=2)
d = tinfoil.parse_recipe(args.recipe)
else:
tinfoil.prepare(quiet=2, config_only=True)
d = tinfoil.config_data
if args.flag:
print(str(d.getVarFlag(args.variable, args.flag, expand=(not args.unexpand))))
elif args.value:
print(str(d.getVar(args.variable, expand=(not args.unexpand))))
else:
bb.data.emit_var(args.variable, d=d, all=True)