101 lines
3.9 KiB
Python
101 lines
3.9 KiB
Python
# Copyright Google LLC All Rights Reserved.
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#
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# Use of this source code is governed by an MIT-style license that can be
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# found in the LICENSE file at https://angular.io/license
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load("@build_bazel_rules_nodejs//:index.bzl", "npm_package_bin")
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load("@npm//@bazel/terser:index.bzl", "terser_minified")
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load("@npm//@bazel/rollup:index.bzl", "rollup_bundle")
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load("//dev-infra/bazel:expand_template.bzl", "expand_template")
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def ng_rollup_bundle(
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name,
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entry_point,
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deps = [],
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license_banner = None,
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build_optimizer = True,
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visibility = None,
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format = "iife",
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globals = {},
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**kwargs):
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"""Rollup with Build Optimizer on target prodmode output (ESM2015).
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This provides an extension of the [rollup_bundle] rule that works better for Angular apps.
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Runs [rollup], [terser_minified] and [brotli] to produce a number of output bundles.
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es2015 : "%{name}.js"
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es2015 minified : "%{name}.min.js"
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es2015 minified (compressed) : "%{name}.min.js.br",
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es2015 minified (debug) : "%{name}.min_debug.js"
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It registers `@angular-devkit/build-optimizer` as a rollup plugin by default. This helps
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with further optimization. See https://github.com/angular/angular-cli/tree/master/packages/angular_devkit/build_optimizer.
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[rollup_bundle]: https://github.com/bazelbuild/rules_nodejs/blob/1.x/packages/rollup/src/rollup_bundle.bzl
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[rollup]: https://rollupjs.org/guide/en/
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[terser_minified]: https://bazelbuild.github.io/rules_nodejs/Terser.html
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[brotli]: https://brotli.org/
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"""
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config_data = [license_banner] if license_banner else []
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expand_template(
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name = "%s_rollup_config" % name,
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template = "//dev-infra/benchmark/ng_rollup_bundle:rollup.config-tmpl.js",
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output_name = "%s_rollup_config.js" % name,
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configuration_env_vars = ["angular_ivy_enabled"],
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data = config_data,
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substitutions = {
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"TMPL_build_optimizer": "true" if build_optimizer else "false",
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"TMPL_banner_file": "\"$(execpath %s)\"" % license_banner if license_banner else "undefined",
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"TMPL_external": ", ".join(["'%s'" % e for e in globals.keys()]),
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"TMPL_globals": ", ".join(["'%s': '%s'" % (g, g) for g in globals]),
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},
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visibility = visibility,
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)
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rollup_bundle(
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name = name,
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config_file = "%s_rollup_config" % name,
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entry_points = {
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(entry_point): name,
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},
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visibility = visibility,
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deps = config_data + deps + [
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"@npm//rollup-plugin-node-resolve",
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"@npm//rollup-plugin-sourcemaps",
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"@npm//rollup-plugin-commonjs",
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"@npm//@angular-devkit/build-optimizer",
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],
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silent = True,
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format = format,
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sourcemap = "true",
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**kwargs
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)
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common_terser_options = {
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"visibility": visibility,
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"config_file": "//dev-infra/benchmark/ng_rollup_bundle:terser_config.json",
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# TODO: Enable source maps for better debugging when `@bazel/terser` pre-declares
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# JS and map outputs. Tracked with: DEV-120
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"sourcemap": False,
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}
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terser_minified(name = name + ".min", src = name + ".js", **common_terser_options)
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native.filegroup(name = name + ".min.js", srcs = [name + ".min"], visibility = visibility)
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terser_minified(name = name + ".min_debug", src = name + ".js", debug = True, **common_terser_options)
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native.filegroup(name = name + ".min_debug.js", srcs = [name + ".min_debug"], visibility = visibility)
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npm_package_bin(
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name = "_%s_brotli" % name,
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tool = "//dev-infra/benchmark/brotli-cli",
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data = [name + ".min.js"],
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outs = [name + ".min.js.br"],
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args = [
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"--output=$(execpath %s.min.js.br)" % name,
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"$(execpath %s.min.js)" % name,
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],
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visibility = visibility,
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)
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