mirror of
https://github.com/google/nomulus.git
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78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
# -*- mode: python; -*-
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#
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# Copyright 2016 Google Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Build definitions for CSS compiled by the Closure Stylesheets.
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"""
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_CSS_FILE_TYPE = FileType([".css", ".gss"])
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_JS_FILE_TYPE = FileType([".js"])
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def _impl(ctx):
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srcs = set(order="compile")
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for dep in ctx.attr.deps:
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srcs += dep.transitive_css_srcs
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srcs += _CSS_FILE_TYPE.filter(ctx.files.srcs)
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js_srcs = set(order="compile")
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js_srcs += ctx.attr._library.transitive_js_srcs
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js_srcs += _JS_FILE_TYPE.filter([ctx.outputs.js])
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js_externs = set(order="compile")
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js_externs += ctx.attr._library.transitive_js_externs
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args = [
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"--output-file",
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ctx.outputs.out.path,
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"--output-renaming-map",
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ctx.outputs.js.path,
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"--output-renaming-map-format",
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"CLOSURE_COMPILED_SPLIT_HYPHENS",
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]
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if ctx.attr.debug:
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args += ["--rename", "DEBUG", "--pretty-print"]
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else:
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args += ["--rename", "CLOSURE"]
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args += ctx.attr.defs
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args += [src.path for src in srcs]
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ctx.action(
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inputs=list(srcs),
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outputs=[ctx.outputs.out, ctx.outputs.js],
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arguments=args,
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executable=ctx.executable._compiler,
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progress_message="Compiling %d stylesheets to %s" % (
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len(srcs), ctx.outputs.out.short_path))
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return struct(files=set([ctx.outputs.out]),
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js_language="ANY",
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js_exports=set(order="compile"),
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transitive_js_srcs=js_srcs,
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transitive_js_externs=js_externs)
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closure_css_binary = rule(
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implementation=_impl,
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attrs={
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"srcs": attr.label_list(allow_files=_CSS_FILE_TYPE),
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"deps": attr.label_list(
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allow_files=False,
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providers=["transitive_css_srcs"]),
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"defs": attr.string_list(),
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"debug": attr.bool(default=False),
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"_compiler": attr.label(
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default=Label("//third_party/closure/stylesheets"),
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executable=True),
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"_library": attr.label(
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default=Label("//third_party/closure/library"),
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providers=["transitive_js_srcs",
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"transitive_js_externs"]),
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},
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outputs={"out": "%{name}.css",
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"js": "%{name}.css.js"})
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