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13138449
Jumping Panda
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dd7c22a7
Commit
dd7c22a7
authored
Oct 30, 2020
by
13138449
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dd7c22a7
'
use strict
'
;
const
autoprefixer
=
require
(
'
autoprefixer
'
);
const
path
=
require
(
'
path
'
);
const
webpack
=
require
(
'
webpack
'
);
const
HtmlWebpackPlugin
=
require
(
'
html-webpack-plugin
'
);
const
ExtractTextPlugin
=
require
(
'
extract-text-webpack-plugin
'
);
const
ManifestPlugin
=
require
(
'
webpack-manifest-plugin
'
);
const
InterpolateHtmlPlugin
=
require
(
'
react-dev-utils/InterpolateHtmlPlugin
'
);
const
SWPrecacheWebpackPlugin
=
require
(
'
sw-precache-webpack-plugin
'
);
const
eslintFormatter
=
require
(
'
react-dev-utils/eslintFormatter
'
);
const
ModuleScopePlugin
=
require
(
'
react-dev-utils/ModuleScopePlugin
'
);
const
paths
=
require
(
'
./paths
'
);
const
getClientEnvironment
=
require
(
'
./env
'
);
// Webpack uses `publicPath` to determine where the app is being served from.
// It requires a trailing slash, or the file assets will get an incorrect path.
const
publicPath
=
paths
.
servedPath
;
// Some apps do not use client-side routing with pushState.
// For these, "homepage" can be set to "." to enable relative asset paths.
const
shouldUseRelativeAssetPaths
=
publicPath
===
'
./
'
;
// Source maps are resource heavy and can cause out of memory issue for large source files.
const
shouldUseSourceMap
=
process
.
env
.
GENERATE_SOURCEMAP
!==
'
false
'
;
// `publicUrl` is just like `publicPath`, but we will provide it to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
const
publicUrl
=
publicPath
.
slice
(
0
,
-
1
);
// Get environment variables to inject into our app.
const
env
=
getClientEnvironment
(
publicUrl
);
// Assert this just to be safe.
// Development builds of React are slow and not intended for production.
if
(
env
.
stringified
[
'
process.env
'
].
NODE_ENV
!==
'
"production"
'
)
{
throw
new
Error
(
'
Production builds must have NODE_ENV=production.
'
);
}
// Note: defined here because it will be used more than once.
const
cssFilename
=
'
static/css/[name].[contenthash:8].css
'
;
// ExtractTextPlugin expects the build output to be flat.
// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
// However, our output is structured with css, js and media folders.
// To have this structure working with relative paths, we have to use custom options.
const
extractTextPluginOptions
=
shouldUseRelativeAssetPaths
?
// Making sure that the publicPath goes back to to build folder.
{
publicPath
:
Array
(
cssFilename
.
split
(
'
/
'
).
length
).
join
(
'
../
'
)
}
:
{};
// This is the production configuration.
// It compiles slowly and is focused on producing a fast and minimal bundle.
// The development configuration is different and lives in a separate file.
module
.
exports
=
{
// Don't attempt to continue if there are any errors.
bail
:
true
,
// We generate sourcemaps in production. This is slow but gives good results.
// You can exclude the *.map files from the build during deployment.
devtool
:
shouldUseSourceMap
?
'
source-map
'
:
false
,
// In production, we only want to load the polyfills and the app code.
entry
:
[
require
.
resolve
(
'
./polyfills
'
),
paths
.
appIndexJs
],
output
:
{
// The build folder.
path
:
paths
.
appBuild
,
// Generated JS file names (with nested folders).
// There will be one main bundle, and one file per asynchronous chunk.
// We don't currently advertise code splitting but Webpack supports it.
filename
:
'
static/js/[name].[chunkhash:8].js
'
,
chunkFilename
:
'
static/js/[name].[chunkhash:8].chunk.js
'
,
// We inferred the "public path" (such as / or /my-project) from homepage.
publicPath
:
publicPath
,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate
:
info
=>
path
.
relative
(
paths
.
appSrc
,
info
.
absoluteResourcePath
)
.
replace
(
/
\\
/g
,
'
/
'
),
},
resolve
:
{
// This allows you to set a fallback for where Webpack should look for modules.
// We placed these paths second because we want `node_modules` to "win"
// if there are any conflicts. This matches Node resolution mechanism.
// https://github.com/facebookincubator/create-react-app/issues/253
modules
:
[
'
node_modules
'
,
paths
.
appNodeModules
].
concat
(
// It is guaranteed to exist because we tweak it in `env.js`
process
.
env
.
NODE_PATH
.
split
(
path
.
delimiter
).
filter
(
Boolean
)
),
// These are the reasonable defaults supported by the Node ecosystem.
// We also include JSX as a common component filename extension to support
// some tools, although we do not recommend using it, see:
// https://github.com/facebookincubator/create-react-app/issues/290
// `web` extension prefixes have been added for better support
// for React Native Web.
extensions
:
[
'
.web.js
'
,
'
.mjs
'
,
'
.js
'
,
'
.json
'
,
'
.web.jsx
'
,
'
.jsx
'
],
alias
:
{
// Support React Native Web
// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
'
react-native
'
:
'
react-native-web
'
,
},
plugins
:
[
// Prevents users from importing files from outside of src/ (or node_modules/).
// This often causes confusion because we only process files within src/ with babel.
// To fix this, we prevent you from importing files out of src/ -- if you'd like to,
// please link the files into your node_modules/ and let module-resolution kick in.
// Make sure your source files are compiled, as they will not be processed in any way.
new
ModuleScopePlugin
(
paths
.
appSrc
,
[
paths
.
appPackageJson
]),
],
},
module
:
{
strictExportPresence
:
true
,
rules
:
[
// TODO: Disable require.ensure as it's not a standard language feature.
// We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
// { parser: { requireEnsure: false } },
// First, run the linter.
// It's important to do this before Babel processes the JS.
{
test
:
/
\.(
js|jsx|mjs
)
$/
,
enforce
:
'
pre
'
,
use
:
[
{
options
:
{
formatter
:
eslintFormatter
,
eslintPath
:
require
.
resolve
(
'
eslint
'
),
},
loader
:
require
.
resolve
(
'
eslint-loader
'
),
},
],
include
:
paths
.
appSrc
,
},
{
// "oneOf" will traverse all following loaders until one will
// match the requirements. When no loader matches it will fall
// back to the "file" loader at the end of the loader list.
oneOf
:
[
// "url" loader works just like "file" loader but it also embeds
// assets smaller than specified size as data URLs to avoid requests.
{
test
:
[
/
\.
bmp$/
,
/
\.
gif$/
,
/
\.
jpe
?
g$/
,
/
\.
png$/
],
loader
:
require
.
resolve
(
'
url-loader
'
),
options
:
{
limit
:
10000
,
name
:
'
static/media/[name].[hash:8].[ext]
'
,
},
},
// Process JS with Babel.
{
test
:
/
\.(
js|jsx|mjs
)
$/
,
include
:
paths
.
appSrc
,
loader
:
require
.
resolve
(
'
babel-loader
'
),
options
:
{
compact
:
true
,
},
},
// The notation here is somewhat confusing.
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader normally turns CSS into JS modules injecting <style>,
// but unlike in development configuration, we do something different.
// `ExtractTextPlugin` first applies the "postcss" and "css" loaders
// (second argument), then grabs the result CSS and puts it into a
// separate file in our build process. This way we actually ship
// a single CSS file in production instead of JS code injecting <style>
// tags. If you use code splitting, however, any async bundles will still
// use the "style" loader inside the async code so CSS from them won't be
// in the main CSS file.
{
test
:
/
\.
css$/
,
loader
:
ExtractTextPlugin
.
extract
(
Object
.
assign
(
{
fallback
:
{
loader
:
require
.
resolve
(
'
style-loader
'
),
options
:
{
hmr
:
false
,
},
},
use
:
[
{
loader
:
require
.
resolve
(
'
css-loader
'
),
options
:
{
importLoaders
:
1
,
minimize
:
true
,
sourceMap
:
shouldUseSourceMap
,
},
},
{
loader
:
require
.
resolve
(
'
postcss-loader
'
),
options
:
{
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident
:
'
postcss
'
,
plugins
:
()
=>
[
require
(
'
postcss-flexbugs-fixes
'
),
autoprefixer
({
browsers
:
[
'
>1%
'
,
'
last 4 versions
'
,
'
Firefox ESR
'
,
'
not ie < 9
'
,
// React doesn't support IE8 anyway
],
flexbox
:
'
no-2009
'
,
}),
],
},
},
],
},
extractTextPluginOptions
)
),
// Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
},
// "file" loader makes sure assets end up in the `build` folder.
// When you `import` an asset, you get its filename.
// This loader doesn't use a "test" so it will catch all modules
// that fall through the other loaders.
{
loader
:
require
.
resolve
(
'
file-loader
'
),
// Exclude `js` files to keep "css" loader working as it injects
// it's runtime that would otherwise processed through "file" loader.
// Also exclude `html` and `json` extensions so they get processed
// by webpacks internal loaders.
exclude
:
[
/
\.
js$/
,
/
\.
html$/
,
/
\.
json$/
],
options
:
{
name
:
'
static/media/[name].[hash:8].[ext]
'
,
},
},
// ** STOP ** Are you adding a new loader?
// Make sure to add the new loader(s) before the "file" loader.
],
},
],
},
plugins
:
[
// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In production, it will be an empty string unless you specify "homepage"
// in `package.json`, in which case it will be the pathname of that URL.
new
InterpolateHtmlPlugin
(
env
.
raw
),
// Generates an `index.html` file with the <script> injected.
new
HtmlWebpackPlugin
({
inject
:
true
,
template
:
paths
.
appHtml
,
minify
:
{
removeComments
:
true
,
collapseWhitespace
:
true
,
removeRedundantAttributes
:
true
,
useShortDoctype
:
true
,
removeEmptyAttributes
:
true
,
removeStyleLinkTypeAttributes
:
true
,
keepClosingSlash
:
true
,
minifyJS
:
true
,
minifyCSS
:
true
,
minifyURLs
:
true
,
},
}),
// Makes some environment variables available to the JS code, for example:
// if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
// It is absolutely essential that NODE_ENV was set to production here.
// Otherwise React will be compiled in the very slow development mode.
new
webpack
.
DefinePlugin
(
env
.
stringified
),
// Minify the code.
new
webpack
.
optimize
.
UglifyJsPlugin
({
compress
:
{
warnings
:
false
,
// Disabled because of an issue with Uglify breaking seemingly valid code:
// https://github.com/facebookincubator/create-react-app/issues/2376
// Pending further investigation:
// https://github.com/mishoo/UglifyJS2/issues/2011
comparisons
:
false
,
},
mangle
:
{
safari10
:
true
,
},
output
:
{
comments
:
false
,
// Turned on because emoji and regex is not minified properly using default
// https://github.com/facebookincubator/create-react-app/issues/2488
ascii_only
:
true
,
},
sourceMap
:
shouldUseSourceMap
,
}),
// Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
new
ExtractTextPlugin
({
filename
:
cssFilename
,
}),
// Generate a manifest file which contains a mapping of all asset filenames
// to their corresponding output file so that tools can pick it up without
// having to parse `index.html`.
new
ManifestPlugin
({
fileName
:
'
asset-manifest.json
'
,
}),
// Generate a service worker script that will precache, and keep up to date,
// the HTML & assets that are part of the Webpack build.
new
SWPrecacheWebpackPlugin
({
// By default, a cache-busting query parameter is appended to requests
// used to populate the caches, to ensure the responses are fresh.
// If a URL is already hashed by Webpack, then there is no concern
// about it being stale, and the cache-busting can be skipped.
dontCacheBustUrlsMatching
:
/
\.\w{8}\.
/
,
filename
:
'
service-worker.js
'
,
logger
(
message
)
{
if
(
message
.
indexOf
(
'
Total precache size is
'
)
===
0
)
{
// This message occurs for every build and is a bit too noisy.
return
;
}
if
(
message
.
indexOf
(
'
Skipping static resource
'
)
===
0
)
{
// This message obscures real errors so we ignore it.
// https://github.com/facebookincubator/create-react-app/issues/2612
return
;
}
console
.
log
(
message
);
},
minify
:
true
,
// For unknown URLs, fallback to the index page
navigateFallback
:
publicUrl
+
'
/index.html
'
,
// Ignores URLs starting from /__ (useful for Firebase):
// https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
navigateFallbackWhitelist
:
[
/^
(?!\/
__
)
.*/
],
// Don't precache sourcemaps (they're large) and build asset manifest:
staticFileGlobsIgnorePatterns
:
[
/
\.
map$/
,
/asset-manifest
\.
json$/
],
}),
// Moment.js is an extremely popular library that bundles large locale files
// by default due to how Webpack interprets its code. This is a practical
// solution that requires the user to opt into importing specific locales.
// https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
// You can remove this if you don't use Moment.js:
new
webpack
.
IgnorePlugin
(
/^
\.\/
locale$/
,
/moment$/
),
],
// Some libraries import Node modules but don't use them in the browser.
// Tell Webpack to provide empty mocks for them so importing them works.
node
:
{
dgram
:
'
empty
'
,
fs
:
'
empty
'
,
net
:
'
empty
'
,
tls
:
'
empty
'
,
child_process
:
'
empty
'
,
},
};
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