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90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
# Copyright 2020 MongoDB Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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"""The initialization for the dagger tool. This file provides the initialization for the tool
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and attaches our custom builders and emitters to the build process"""
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import os
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import logging
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import SCons
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from . import dagger
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def generate(env, **kwargs):
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"""The entry point for our tool. However, the builder for
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the JSON file is not actually run until the Dagger method is called
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in the environment. When we generate the tool we attach our emitters
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to the native builders for object/libraries.
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"""
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env.Replace(
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LIBEMITTER=SCons.Builder.ListEmitter(
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[env["LIBEMITTER"], dagger.emit_lib_db_entry]
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)
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)
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running_os = os.sys.platform
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if not (running_os.startswith("win") or running_os.startswith("sun")):
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env.Replace(
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PROGEMITTER=SCons.Builder.ListEmitter(
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[env["PROGEMITTER"], dagger.emit_prog_db_entry]
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)
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)
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static_obj, shared_obj = SCons.Tool.createObjBuilders(env)
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suffixes = [".c", ".cc", ".cxx", ".cpp"]
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obj_builders = [static_obj, shared_obj]
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default_emitters = [
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SCons.Defaults.StaticObjectEmitter,
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SCons.Defaults.SharedObjectEmitter,
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]
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for suffix in suffixes:
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for i in range(len(obj_builders)):
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obj_builders[i].add_emitter(
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suffix,
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SCons.Builder.ListEmitter(
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[dagger.emit_obj_db_entry, default_emitters[i]]
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),
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)
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env["BUILDERS"]["__OBJ_DATABASE"] = SCons.Builder.Builder(
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action=SCons.Action.Action(dagger.write_obj_db, None)
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)
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def Dagger(env, target="library_dependency_graph.json"):
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if running_os.startswith("win") or running_os.startswith("sun"):
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logging.error("Dagger is only supported on OSX and Linux")
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return
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result = env.__OBJ_DATABASE(target=target, source=[])
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env.AlwaysBuild(result)
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env.NoCache(result)
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return result
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env.AddMethod(Dagger, "Dagger")
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def exists(env):
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return True
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