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54 lines
1.9 KiB
Python
54 lines
1.9 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 JavaScript dependency files.
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Generating this file is important because the deps-runfiles.js file tells the
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Closure Library how to send requests to the web server to load goog.require'd
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namespaces.
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"""
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load("//third_party/closure/compiler/private:defs.bzl",
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"JS_FILE_TYPE",
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"make_js_deps_runfiles")
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def _impl(ctx):
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srcs = set(order="compile")
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for src in ctx.attr.srcs:
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srcs += src.transitive_js_srcs
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ctx.action(
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inputs=list(srcs),
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outputs=[ctx.outputs.out],
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arguments=(["--output_file=%s" % (ctx.outputs.out.path)] +
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[src.path for src in srcs]),
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executable=ctx.executable._depswriter,
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progress_message="Calculating %d JavaScript deps to %s" % (
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len(srcs), ctx.outputs.out.short_path))
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make_js_deps_runfiles(ctx, srcs)
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return struct(files=set([ctx.outputs.out, ctx.outputs.runfiles]))
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closure_js_deps = rule(
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implementation=_impl,
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attrs={
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"srcs": attr.label_list(
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allow_files=False,
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providers=["transitive_js_srcs"]),
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"_depswriter": attr.label(
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default=Label("@closure_library//:depswriter"),
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executable=True),
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},
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outputs={"out": "%{name}.js",
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"runfiles": "%{name}-runfiles.js"})
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