mirror of https://github.com/bazelbuild/rules_cc
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
"""Script to make automated CROSSTOOL refactorings easier.
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This script reads the CROSSTOOL file and allows for querying of its fields.
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"""
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from absl import app
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from absl import flags
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from google.protobuf import text_format
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from third_party.com.github.bazelbuild.bazel.src.main.protobuf import crosstool_config_pb2
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flags.DEFINE_string("crosstool", None, "CROSSTOOL file path to be queried")
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flags.DEFINE_string("identifier", None,
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"Toolchain identifier to specify toolchain.")
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flags.DEFINE_string("print_field", None, "Field to be printed to stdout.")
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def main(unused_argv):
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crosstool = crosstool_config_pb2.CrosstoolRelease()
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crosstool_filename = flags.FLAGS.crosstool
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identifier = flags.FLAGS.identifier
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print_field = flags.FLAGS.print_field
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if not crosstool_filename:
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raise app.UsageError("ERROR crosstool unspecified")
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if not identifier:
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raise app.UsageError("ERROR identifier unspecified")
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if not print_field:
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raise app.UsageError("ERROR print_field unspecified")
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with open(crosstool_filename, "r") as f:
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text = f.read()
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text_format.Merge(text, crosstool)
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toolchain_found = False
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for toolchain in crosstool.toolchain:
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if toolchain.toolchain_identifier == identifier:
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toolchain_found = True
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if not print_field:
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continue
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for field, value in toolchain.ListFields():
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if print_field == field.name:
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print value
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if not toolchain_found:
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print "toolchain_identifier %s not found, valid values are:" % identifier
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for toolchain in crosstool.toolchain:
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print " " + toolchain.toolchain_identifier
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if __name__ == "__main__":
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app.run(main)
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