poky/bitbake/bin/bitbake-getvar

#! /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)