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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>
49 lines
1.7 KiB
Python
Executable File
49 lines
1.7 KiB
Python
Executable File
#! /usr/bin/env python3
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#
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# Copyright (C) 2021 Richard Purdie
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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import argparse
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import io
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import os
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import sys
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bindir = os.path.dirname(__file__)
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topdir = os.path.dirname(bindir)
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sys.path[0:0] = [os.path.join(topdir, 'lib')]
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import bb.tinfoil
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="Bitbake Query Variable")
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parser.add_argument("variable", help="variable name to query")
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parser.add_argument("-r", "--recipe", help="Recipe name to query", default=None, required=False)
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parser.add_argument('-u', '--unexpand', help='Do not expand the value (with --value)', action="store_true")
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parser.add_argument('-f', '--flag', help='Specify a variable flag to query (with --value)', default=None)
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parser.add_argument('--value', help='Only report the value, no history and no variable name', action="store_true")
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args = parser.parse_args()
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if args.unexpand and not args.value:
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print("--unexpand only makes sense with --value")
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sys.exit(1)
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if args.flag and not args.value:
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print("--flag only makes sense with --value")
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sys.exit(1)
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with bb.tinfoil.Tinfoil(tracking=True) as tinfoil:
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if args.recipe:
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tinfoil.prepare(quiet=2)
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d = tinfoil.parse_recipe(args.recipe)
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else:
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tinfoil.prepare(quiet=2, config_only=True)
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d = tinfoil.config_data
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if args.flag:
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print(str(d.getVarFlag(args.variable, args.flag, expand=(not args.unexpand))))
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elif args.value:
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print(str(d.getVar(args.variable, expand=(not args.unexpand))))
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else:
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bb.data.emit_var(args.variable, d=d, all=True)
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