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babel/scripts/gulp-tasks.js at master · simpleTechs/babel · GitHub
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gulp-tasks.js
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babel
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scripts
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gulp-tasks.js
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"use strict"
;
/**
* This file contains the Gulp tasks for babel-standalone. Note that
* babel-standalone is compiled using Webpack, and performs its own Babel
* compilation of all the JavaScript files. This is because it targets web
* browsers, so more transforms are needed than the regular Babel builds that
* only target Node.js.
*
* The tasks in this file are designed to be reusable, so that they can be used
* to make standalone builds of other Babel plugins/presets (such as babel-minify)
*/
const
path
=
require
(
"path"
)
;
const
pump
=
require
(
"pump"
)
;
const
rename
=
require
(
"gulp-rename"
)
;
const
RootMostResolvePlugin
=
require
(
"webpack-dependency-suite"
)
.
RootMostResolvePlugin
;
const
webpack
=
require
(
"webpack"
)
;
const
webpackStream
=
require
(
"webpack-stream"
)
;
const
uglify
=
require
(
"gulp-uglify"
)
;
function
webpackBuild
(
opts
)
{
const
plugins
=
opts
.
plugins
||
[
]
;
let
babelVersion
=
require
(
"../packages/babel-core/package.json"
)
.
version
;
let
version
=
opts
.
version
||
babelVersion
;
// If this build is part of a pull request, include the pull request number in
// the version number.
if
(
process
.
env
.
CIRCLE_PR_NUMBER
)
{
const
prVersion
=
"+pr."
+
process
.
env
.
CIRCLE_PR_NUMBER
;
babelVersion
+=
prVersion
;
version
+=
prVersion
;
}
const
config
=
{
module
:
{
rules
:
[
{
test
:
/
\.
j
s
$
/
,
loader
:
"babel-loader"
,
options
:
{
// Use the bundled config so that module syntax is passed through
// for Webpack.
envName
:
"standalone"
,
}
,
}
,
]
,
}
,
node
:
{
// Mock Node.js modules that Babel require()s but that we don't
// particularly care about.
fs
:
"empty"
,
module
:
"empty"
,
net
:
"empty"
,
}
,
output
:
{
filename
:
opts
.
filename
,
library
:
opts
.
library
,
libraryTarget
:
"umd"
,
}
,
plugins
:
[
new
webpack
.
DefinePlugin
(
{
"process.env.NODE_ENV"
:
'"production"'
,
"process.env"
:
JSON
.
stringify
(
{
NODE_ENV
:
"production"
}
)
,
BABEL_VERSION
:
JSON
.
stringify
(
babelVersion
)
,
VERSION
:
JSON
.
stringify
(
version
)
,
}
)
,
/*new webpack.NormalModuleReplacementPlugin(
/..\/..\/package/,
"../../../../src/babel-package-shim"
),*/
new
webpack
.
optimize
.
ModuleConcatenationPlugin
(
)
,
]
.
concat
(
plugins
)
,
resolve
:
{
plugins
:
[
// Dedupe packages that are used across multiple plugins.
// This replaces DedupePlugin from Webpack 1.x
new
RootMostResolvePlugin
(
__dirname
,
true
)
,
]
,
}
,
}
;
if
(
opts
.
library
!==
"Babel"
)
{
config
.
externals
=
{
"@babel/standalone"
:
"Babel"
,
}
;
}
return
webpackStream
(
config
,
webpack
)
;
// To write JSON for debugging:
/*return webpackStream(config, webpack, (err, stats) => {
require('gulp-util').log(stats.toString({colors: true}));
require('fs').writeFileSync('webpack-debug.json', JSON.stringify(stats.toJson()));
});*/
}
function
registerStandalonePackageTask
(
gulp
,
name
,
exportName
,
pathname
,
version
,
plugins
)
{
const
standaloneName
=
name
+
"-standalone"
;
const
standalonePath
=
path
.
join
(
pathname
,
standaloneName
)
;
gulp
.
task
(
"build-"
+
standaloneName
,
cb
=>
{
pump
(
[
gulp
.
src
(
path
.
join
(
standalonePath
,
"src/index.js"
)
)
,
webpackBuild
(
{
filename
:
name
+
".js"
,
library
:
exportName
,
version
,
plugins
,
}
)
,
gulp
.
dest
(
standalonePath
)
,
]
.
concat
(
// Minification is super slow, so we skip it in CI.
process
.
env
.
CI
?
[
]
:
uglify
(
)
,
rename
(
{
extname
:
".min.js"
}
)
,
gulp
.
dest
(
standalonePath
)
)
,
cb
)
;
}
)
;
}
module
.
exports
=
{
webpackBuild
:
webpackBuild
,
registerStandalonePackageTask
:
registerStandalonePackageTask
,
}
;
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