Abseil Common Libraries (C++) (grcp 依赖)
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107 lines
2.4 KiB
107 lines
2.4 KiB
"""Generate Abseil compile compile option configs. |
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Usage: python absl/generate_copts.py |
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The configs are generated from copts.py. |
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""" |
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from os import path |
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import sys |
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from copts import COPT_VARS |
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# Helper functions |
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def file_header_lines(): |
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return [ |
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"GENERATED! DO NOT MANUALLY EDIT THIS FILE.", "", |
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"(1) Edit absl/copts/copts.py.", |
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"(2) Run `python <path_to_absl>/copts/generate_copts.py`." |
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] |
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def flatten(*lists): |
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return [item for sublist in lists for item in sublist] |
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def relative_filename(filename): |
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return path.join(path.dirname(__file__), filename) |
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# Style classes. These contain all the syntactic styling needed to generate a |
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# copt file for different build tools. |
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class CMakeStyle(object): |
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"""Style object for CMake copts file.""" |
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def separator(self): |
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return "" |
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def list_introducer(self, name): |
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return "list(APPEND " + name |
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def list_closer(self): |
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return ")\n" |
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def docstring(self): |
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return "\n".join((("# " + line).strip() for line in file_header_lines())) |
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def filename(self): |
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return "GENERATED_AbseilCopts.cmake" |
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class StarlarkStyle(object): |
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"""Style object for Starlark copts file.""" |
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def separator(self): |
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return "," |
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def list_introducer(self, name): |
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return name + " = [" |
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def list_closer(self): |
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return "]\n" |
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def docstring(self): |
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docstring_quotes = "\"\"\"" |
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return docstring_quotes + "\n".join( |
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flatten(file_header_lines(), [docstring_quotes])) |
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def filename(self): |
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return "GENERATED_copts.bzl" |
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# Copt file generation |
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def copt_list(name, arg_list, style): |
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make_line = lambda s: " \"" + s + "\"" + style.separator() |
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external_str_list = [make_line(s) for s in arg_list] |
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return "\n".join( |
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flatten( |
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[style.list_introducer(name)], |
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external_str_list, |
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[style.list_closer()])) |
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def generate_copt_file(style): |
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"""Creates a generated copt file using the given style object. |
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Args: |
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style: either StarlarkStyle() or CMakeStyle() |
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""" |
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with open(relative_filename(style.filename()), "w") as f: |
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f.write(style.docstring()) |
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f.write("\n") |
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for var_name, arg_list in sorted(COPT_VARS.items()): |
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f.write("\n") |
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f.write(copt_list(var_name, arg_list, style)) |
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def main(argv): |
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if len(argv) > 1: |
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raise RuntimeError("generate_copts needs no command line args") |
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generate_copt_file(StarlarkStyle()) |
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generate_copt_file(CMakeStyle()) |
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if __name__ == "__main__": |
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main(sys.argv)
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