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chore(deps): update dependency webpack to v4 #542

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@renovate renovate bot commented Jan 28, 2019

This PR contains the following updates:

Package Type Update Change References
webpack devDependencies major ~3.12.0 -> ~4.29.0 source

Release Notes

webpack/webpack

v4.29.0

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Features

  • update acorn to v6
  • limit the number of in parallel written output files to 15
  • add output.futureEmitAssets which gives the emitting logic of webpack 5
    • assets are replaced with SizeOnlySources
    • reading assets after emitting is no longer allowed
    • This allows memory to be garbage-collected

v4.28.4

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Bugfixes

  • ProfilingPlugin creates output path if not existing
  • fixed support for arrow function functions for optimization.minimizer
  • failed hooks is now also called when run() fails

v4.28.3

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Bugfixes

  • ProfilingPlugin creates the output folder if necessary

v4.28.2

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Bugfixes

  • fixes a crash when multiple IgnorePlugins are used

v4.28.1

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Bugfixes

  • fix error in IgnorePlugin when no contextRegExp is passed

v4.28.0

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Features

  • IgnorePlugin: checkResource has an additional context argument

Bugfixes

  • Injection of node.js globals has been disabled for .mjs files as it's crashing

v4.27.1

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Bugfixes

  • v4.27.0 accidentially introduced a breaking change. This reverts the change and restores the original behavior for splitChunks enforce.

v4.27.0

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Features

  • When using functions as plugins they are now also called with the compiler as parameter
    • This make it possible to use arrow functions as plugins
  • splitChunks.maxSize now emits a warning when minSize > maxSize
  • Loaders have now access to a getResolve method to create their own resolver function with custom options

Bugfixes

  • splitChunks.cacheGroups.xxx.enforce now behaves as documented and enforce chunk creation
  • splitChunks.cacheGroups.xxx.enforce now no longer deletes minSize for maxSize
  • fixes a bug where splitChunks cause cacheGroups to be incorrectly merged when using the same name
    • now conditions are considered per cacheGroup
    • the correct cache group comment is displayed in stats
  • fixes a bug which causes providedExports not to be updated on rebuilds when using export * from

v4.26.1

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Bugfixes

  • fix a bug where splitChunks.maxSize causes a hanging build
  • fix a bug where splitChunks.maxSize crashes when minSize > maxSize
  • fix a edgecase where splitChunks.maxSize can cause chunks bigger than minSize
  • remove unnecessary code from global builtin

v4.26.0

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Features

  • Switch from uglify-es to terser as default minimizer

Note: While they are officially backward-compatible, it can still happen that a new bugs occurs with terser, which break your production builds. Make sure to validate your production builds after upgrading to this version. (Note that it's always a good idea to test your output assets before deploying.)

If you want to report bugs to terser (https://github.com/terser-js/terser), please provide a minimal repro case with minimized and non-minimized code. You can configure webpack to generate non-minimized code in production mode by setting optimization.minimize: false. When reporting a bug to terser, best report a repro case which doesn't require running webpack and is reproducible with only the terser command line.

See optimization.minimizers configuration option to switch back to uglify-es or provide additional minimize options for terser.

v4.25.1

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Bugfixes

  • fix replacement of compile-time constant expression when expression is a wrapped expression (string prefix and/or suffix).

v4.25.0

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Features

  • add format option to DllPlugin to allow generating formated manifest json
  • add flags to ProgressPlugin to add and remove information
    • entrypoint counter was added, but disabled by default to avoid breaking change

Bugfixes

  • fix code generation for context dependencies when replacing compile-time constant expressions
  • disable the effect of the ProvidePlugin for .mjs

v4.24.0

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Features

  • allow to pass no dependencies to DefinePlugin runtime value
    • DefinePlugin.runtimeValue(() => {...}, true) is always evaluated
  • add module argument to DefinePlugin.runtimeValue

Bugfixes

  • update webassemblyjs dependency
  • fix bug when using entry names that look like numbers with HMR

v4.23.1

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Bugfixes

  • add space when replacing expression with constant
    • i. e. for code like return'development'===process.env.NODE_ENV&&'foo'

v4.23.0

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Features

  • add watchMode flag to Compiler to be able to detect watch mode in plugins
  • Prefer chunk names of entrypoints when merging chunks
  • add removedFiles property to Compiler to detect removed files

Bugfixes

  • publish declarations to npm
  • upgrade @webassemblyjs/* for bugfix
  • fix crash when using a side-effect-free wasm module in production mode

Internal changes

  • test on node.js 12
  • fix memory leak in test suite

v4.22.0

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Features

  • Add support for evaluating && and || expressions

Bugfixes

  • fix problems where order of things where not deterministic

Performance

  • improve performance of chunk graph creation
    • this will improve rebuild performance in watch mode

v4.21.0

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Features

  • add output.libraryTarget: "amd-require" which generates a AMD require([], ...) wrapper instead of a define([], ...) wrapper
  • support arrays of strings passed to output.library, which exposes the library to a subproperty

Bugfixes

  • fix cases where __webpack_require__.e is used at runtime but is not defined in the bundle
  • fix behavior of externals of global type

Performance

  • Some performance improvements to the chunk graph generation

v4.20.2

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Bugfixes

  • keep comments in export default in concatenated modules

v4.20.1

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Bugfixes

  • fix crash when using libraryTarget: "amd" without library name

v4.20.0

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Bugfixes

  • update dependencies (webpack-sources, @鈥媤ebassemblyjs/*)
  • Handle errors thrown in renderes without crashing

Internal changes

  • Extended typings
  • Update internal structure of options schema to generate typings
    • Note: this exposed an issue in webpack-cli, you need to upgrade to webpack-cli@3.1.1

v4.19.1

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Bugfixes

  • Internal requested filename for import() with target: "electron-main" uses correct path separator on windows
    (This fixes a problem with filemappings in vscode)
  • devtool: "source-map" and variants generate SourceMaps when output file is .mjs
  • browser field as object is used when using target: "electron-renderer"
  • Comments near export default are preserved
  • Passing an array as externals value, now works correctly as documented

v4.19.0

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Bugfixes

  • Create a hash of the whole runtime code for the chunk/contenthash of entry chunks
    • Before hash was (incorrectly) calculated from (some) inputs

v4.18.1

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Bugfixes

  • Update tapable version, which fixes a memory leak

v4.18.0

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Features

  • Upgrade webassemblyjs dependency

v4.17.3

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Bugfixes

  • Fix exit code when multiple CLIs are installed
  • No longer recommend installing webpack-command, but still support it when installed

v4.17.2

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Bugfixes

  • fix a spacing issue with the ProgressPlugin on some terminals
  • force-upgrade webpack-sources for performance improvement (was already in semver range)

v4.17.1

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Bugfixes

  • fix missing reexports in export * in a concatenated module

v4.17.0

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Features

  • allow to provide custom functions to IgnorePlugin

Bugfixes

  • remove incorrectly emitted dead code in concatenated modules
  • chunk ids contribute to [contenthash] for js assets
  • fix crash when trying to export globals in concatenated modules

v4.16.5

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Bugfixes

  • (resource) query now works in import()
  • adding entries multiple times now overrides properly
    • This caused an issue when using webpack-hot-client and runtime chunks

v4.16.4

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Bugfixes

  • fix chunkAsset hook in HotModuleReplacementPlugin

v4.16.3

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Bugfixes

  • fix missing modules with chunks nested in unneeded require.ensures.

v4.16.2

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Bugfixes

  • handle module.require like require
  • emit warnings for module.main.require and module.parent.require
  • sort reasons in stats
  • handle errors when parsing manifest in DllReferencePlugin

v4.16.1

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Bugfixes

  • fix reversed order when using optimization.occurrenceOrder (default in production mode)
  • output.hashDigest has a more relaxed schema
  • update dependencies
  • fix typo in schema

Internal changes

  • typescript 3 rc

v4.16.0

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Features

  • add wasm support for electron-renderer target
  • add optimization.moduleIds and optimization.chunkIds options to replace other options

Bugfixes

  • fix order of side effect evaluation for exported dependencies in side-effect-free modules
  • fix some typos
  • Support the case when passing an array to output.library.root and using a devtool
  • fix a HMR logging message issue in browser where err.stack is not set
  • add missing default extensions to the DllReferencePlugin
  • module/chunk ids in Stats now sort numerical when they are numbers
  • fix lost chunk reasons when using optimization.splitChunks.maxSize
  • fix cases where Dependency.loc is a string instead of an object

Deprecations

  • deprecated Dependency.compare in favor of compareLocations
  • optimization.namedModules is now deprecated
  • optimization.hashedModuleIds is now deprecated
  • optimization.namedChunks is now deprecated
  • optimization.occurrenceOrder is now deprecated

v4.15.1

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Bugfixes

  • fix memory leaks when using HMR and in SplitChunksPlugin cache
  • fix undefined automaticNameDelimiter in cache groups when using maxSize
  • fix ProfilingPlugin for node.js 10 and 6

v4.15.0

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Features:

  • add maxSize option for splitChunks (experimental)
  • add a helpful error when using wasm in a initial chunk

v4.14.0

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Features

  • add new hook Compilation.dependencyReference to modify the dependency references

Bugfixes

  • Allow chunks to emit multiple assets to the same filename when hash matches

v4.13.0

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Features

  • the DefinePlugin now supports runtimeValues to pass computed values with dependencies that can change over time
  • added optimization.hashedModuleIds
  • crossOrigin for chunks is only set when really needed
  • added per chunk group indicies
  • updated enhanced-resolve
    • You can now use absolute paths as keys to resolve.alias

Bugfixes

  • when delegating CLI the bin fields are used
  • when assigning indicies sync dependencies are now walked before async dependencies

v4.12.2

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Bugfixes

  • fix crash when using invalid JSON with HMR
  • fix missing modules when a side-effect-free package is root of module concatenation
  • update chunkhash when entry-chunks list or prefetched chunks change

v4.12.1

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Bugfixes

  • fix problem causing a stack overflow when reexporting circular
  • fix a bug causing missing modules in bundles when using splitChunks
  • run modules in correct order when using import with sideEffects: false
    • added order to DependencyReference
  • add missing support for [chunkhash] in target: "webworker"
  • fix bug causing incomplete profile (race condition) with the ProfilingPlugin

Internal changes

  • Added more types
  • lint files on commit with lint-staged

v4.12.0

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Features

  • Errors from loaders show the loader path in the error message
  • add support for optional catch and line and paragraph separator in strings (ES2019)

Bugfixes

  • fixes a bug where chunks have duplicate ids when using records
  • fix bubbling in HMR for import() when importing a non-ESM
  • fix issue with in installing with pnpm
  • update dependencies of the ProfilingPlugin

v4.11.1

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Features

  • add optimization.mangleWasmImports option to disable mangling of wasm imports

Bugfixes

  • disable wasm import mangling temporary because of bugs in the underlying wasm processing

v4.11.0

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Features

  • support reportProgress in afterEmit
  • Warnings are now emitted if magic comments don't compile
  • Added support for matchResource inline request for loaders
  • Using webpackPrefetch in entry chunk now triggers prefetching in runtime
    • No link tag needed for this in HTML
  • Warnings will be emitted when trying to use i64-functions imported from wasm

Bugfixes

  • get_global initializer in wasm globals now work correctly
  • Reexporting globals is now handled correctly
  • Error origins and locations are now displayed correctly

v4.10.2

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Bugfixes

  • order of wasm globals is correctly preversed while rewriting
  • skipping side-effect-free modules up to a concatenated modules will not longer cause null module ids

v4.10.1

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Bugfixes

  • update reasons correctly when skipping side-effect-free modules

v4.10.0

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Features

  • Export and import name strings in them wasm are mangled
  • Unused exports in wasm are removed (Tree Shaking)
    • Don't expect size improvements yet since there is not minimizer for WASM yet which does the Dead Code Elimination, which is the second part for this optimization
  • Direct WASM dependencies are enforced for:
    • functions imports with i64 parameters or return values
    • memory and table imports
  • generate shorter wasm runtime code
  • ESM namespace object now have Symbol.toStringTag "Module"

Bugfixes

  • generate correct initializer for imported globals in wasm
  • side-effect-free modules referenced by export * from are no longer including in the bundle
  • the side-effects optimization is now possible in incremental compilation

v4.9.2

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Bugfixes

  • functions is defined because used (fixes undeclared function error in firefox)
  • progress plugin works now in MultiCompiler scenarios again

v4.9.1

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Bugfixes

  • fix parameter references in default parameters

Internal changes

  • change test cases to text format

v4.9.0

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Features

  • BannerPlugin supports a function as banner option
  • allow serve property in configuration schema
  • add entryOnly option to DllPlugin to only expose modules in the entry point
  • Allow to choose between webpack-cli and webpack-command
  • improve error message when JSON parsing fails
  • allow BOM in JSON
  • sort usedIds in records for stablility

Bugfixes

  • align module not found error message with node.js
  • fix behavior of splitChunks when request limit has reached (caused suboptimal splitting)
  • fix handling of RegExp in records (caused absolute path in records)
  • fix handling of circular chunks (caused missing __webpack_require__.e)
  • runtimeChunk is even generated when all modules are moved by splitChunks (caused multiple runtime chunks instead of single one)
  • string ids are no longer recorded (caused duplicate/wrong chunk ids)
  • fix link to migration guide in error message

Internal changes

  • add more typings
  • Use travis stages
  • add many-pages example

v4.8.3

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Bugfixes

  • fix missing debug dependency
  • support arrays in output.library.root

v4.8.2

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Bugfixes

  • WASM parser bugfixes
  • fix edge case when replacing top-level this in IIFE
  • avoid parser wasm many times

v4.8.1

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Bugfixes

  • fix some WASM parsing issues

v4.8.0

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Features

  • new WASM pipeline
    • use instantiateStreaming when available
    • allow circular dependencies between wasm modules (functions only)

Bugfixes

  • fix a bug where runtime code for wasm was incorrectly cached
  • fix a bug where a splitChunks cacheGroup without name wasn't executed

v4.7.0

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Features

  • add webpackIgnore magic comment (import(/* webpackIgnore: true */ "...")) to keep the import in the bundle
  • add chunkGroups to Stats
    • chunkGroups option
    • namedChunkGroups property
    • Chunk Group text output

Bugfixes

  • prevent chunk merging for the runtimeChunk
  • fix a caching issue for concatenated modules
  • namedModules now handle name conflicts correctly
  • fix a crash when using [contenthash:n] without on-demand-chunks

Internal changes

  • testing uses Jest now
  • testing in node.js 10 too
  • Performance improvements

v4.6.0

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Features

  • improve stats output alignment
  • improve stats text output when all exports are used
  • add webpackPrefetch/webpackPreload magic comments to import()
  • add stats.entrypoints[].children and stats.entrypoints[].childAssets to stats json
  • add prefetched/preloaded chunks and assets to stats text output
  • Performance improvements

Bugfixes

  • Escape chunk ids for target: "webworker"
  • fix this to undefined ESM replacement in function default values
  • new require(...) is weird, but now behaves like in node.js
  • fix behavior of export * from "commonjs" with partial override
  • fixed build time output in current locale in stats text output
  • fixed ChunkModuleIdRangePlugin and add tests
  • avoid race condition when using the loadModule loader API
  • fix default value of output.globalObject in target: "node-webkit"
  • fix a bug with loadModules and dependencies in these modules
  • fix hot.accept parser plugin to allow defined values as argument
  • print unknown size when size is unknown
  • fix a bug where some chunks were missing in the "single" runtime chunk
  • fix cloning of optimization configuration

Internal changes

  • Set up infrastructure for linting typings with TypeScript

v4.5.0

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Features

  • Performance improvements
  • Improve readablility of error messages with long loader string

Bugfixes

  • Sort child compilations for consistent compilation hash
  • Fix bug causing all symbols to be renamed when concatenating modules

Contributing

  • add yarn setup script for bootstrapping local development

v4.4.1

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Bugfixes

  • fix yarn/npm install script on windows

v4.4.0

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Features

  • When webpack-cli is not installed it will ask to install it
  • splitChunks.chunks supports a custom function now
  • Better warning when omitting mode

Bugfixes

  • disallow functions for chunkFilename, because it's not working
  • generate correct code when using export default (function xxx() {})

Performance

  • Performance improvements for sorting by identifier

v4.3.0

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Features

  • add support for [contenthash] placeholder

Bugfixes

  • browser field is used for target electron-renderer
  • set devtoolNamespace default correctly when passing an object to output.library

v4.2.0

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Features

  • add splitChunks.automaticNameDelimiter to configure the name separator for automatic names
  • stats.excludeModules now also accept booleans
  • webpack throws an error when trying to run in twice at a time
  • performance is disabled by default in non-web targets
  • AMD parser plugins can now be extended by inheriting

Bugfixes

  • Fix a race condition when writing events.json in ProfilingPlugin
  • HMR runtime code is reverted to ES5 style
  • script timeout is not correctly in seconds
  • reexporting JSON exports works correctly now
  • fix a bug when combining ProfilingPlugin with SourceMapDevToolPlugin
  • add a missing semicolon to the runtime code

v4.1.1

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Features

  • Stats now displays the number of assets of a module

Bugfixes

  • sourceMap option of the default UglifyJsPlugin now defaults to true when the SourceMapDevToolPlugin is used
  • module.assets is now working again in the Stats
  • chunk ids are not stringified on target node
  • devtoolNamespace default works now also for arrays passed to output.library
  • Format date with 2 digits in Stats for Build At
  • fix a bug renaming classes incorrectly
  • fix a bug where modules ignore the chunks option of optimization.splitChunks

v4.1.0

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Features

  • add filename option to optimization.splitChunks to modify the filename template for splitted chunks
  • allow modules which doesn't emit code into the bundle

Bugfixes

  • watchpack updated to 1.5.0
  • performance fix for Module Concatenation (v8 bug)
  • fix using this.xxx in ProvidePlugin

v4.0.1

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Features

  • add version property to webpack exports

Bugfixes

  • import() with CJS now gives correct exports
  • Module concatenation bailout messages now point to correct module

v4.0.0

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Big changes

  • Environment
    • Node.js 4 is no longer supported. Source Code was upgraded to a higher ecmascript version.
  • Usage
    • You have to choose (mode or --mode) between two modes now: production or development
      • production enables all kind of optimizations to generate optimized bundles
      • development enables comments and hint for development and enables the eval devtool
      • production doesn't support watching, development is optimized for fast incremental rebuilds
      • production also enables module concatenating (Scope Hoisting)
      • You can configure this in detail with the flags in optimization.* (build your custom mode)
      • process.env.NODE_ENV are set to production or development (only in built code, not in config)
      • There is a hidden none mode which disables everything
  • Syntax
    • import() always returns a namespace object. CommonJS modules are wrapped into the default export
      • This probably breaks your code, if you used to import CommonJs with import()
  • Configuration
    • You no longer need to use these plugins:
      • NoEmitOnErrorsPlugin -> optimization.noEmitOnErrors (on by default in production mode)
      • ModuleConcatenationPlugin -> optimization.concatenateModules (on by default in production mode)
      • NamedModulesPlugin -> optimization.namedModules (on by default in develoment mode)
    • CommonsChunkPlugin was removed -> optimization.splitChunks, optimization.runtimeChunk
  • JSON
    • webpack now handles JSON natively
      • You may need to add type: "javascript/auto" when transforming JSON via loader to JS
      • Just using JSON without loader should still work
    • allows to import JSON via ESM syntax
      • unused exports elimination for JSON modules
  • Optimization
    • Upgrade uglifyjs-webpack-plugin to v1
      • ES15 support

Big features

  • Modules
    • webpack now supports these module types:
      • javascript/auto: (The default one in webpack 3) Javascript module with all module systems enabled: CommonJS, AMD, ESM
      • javascript/esm: EcmaScript modules, all other module system are not available
      • javascript/dynamic: Only CommonJS and, EcmaScript modules are not available
      • json: JSON data, it's available via require and import
      • webassembly/experimental: WebAssembly modules (currently experimental)
    • javascript/esm handles ESM more strictly compared to javascript/auto:
      • Imported names need to exist on imported module
      • Dynamic modules (non-esm, i. e. CommonJs) can only imported via default import, everything else (including namespace import) emit errors
    • In .mjs modules are javascript/esm by default
    • WebAssembly modules
      • can import other modules (JS and WASM)
      • Exports from WebAssembly modules are validated by ESM import
        • You'll get a warning/error when trying to import a non-existing export from WASM
      • can only be used in async chunks. They doesn't work in initial chunks (would be bad for web performance)
        • Import modules using WASM via import()
      • This is an experimental feature and subject of change
  • Optimization
    • sideEffects: false is now supported in package.json
      • sideEffects in package.json also supports glob expressions and arrays of glob expressions
    • Instead of a JSONP function a JSONP array is used -> async script tag support, order no longer matter
    • New optimization.splitChunks option was introduced
      Details: https://gist.github.com/sokra/1522d586b8e5c0f5072d7565c2bee693
    • Dead branches are now removed by webpack itself
      • Before: Uglify removed the dead code
      • Now: webpack removes the dead code (in some cases)
      • This prevents crashing when import() occur in a dead branch
  • Syntax
    • webpackInclude and webpackExclude are supported by the magic comment for import(). They allow to filter files when using a dynamic expression.
    • Using System.import() now emits a warning
      • You can disable the warning with Rule.parser.system: true
      • You can disable System.import with Rule.parser.system: false
  • Configuration
    • Resolving can now be configured with module.rules[].resolve. It's merged with the global configuration.
    • optimization.minimize has been added to switch minimizing on/off
      • By default: on in production mode, off in development mode
    • optimization.minimizer has been added to configurate minimizers and options
  • Usage
    • Some Plugin options are now validated
    • CLI has been move to webpack-cli, you need to install webpack-cli to use the CLI
    • The ProgressPlugin (--progress) now displays plugin names
      • At least for plugins migrated to the new plugin system
  • Performance
    • UglifyJs now caches and parallizes by default
    • Multiple performance improvements, especially for faster incremental rebuilds
    • performance improvement for RemoveParentModulesPlugin
  • Stats
    • Stats can display modules nested in concatenated modules

Features

  • Configuration
    • Module type is automatically choosen for mjs, json and wasm extensions. Other extensions need to be configured via module.rules[].type
    • Incorrect options.dependencies configurations now throw error
    • sideEffects can be overriden via module.rules
    • output.hashFunction can now be a Constructor to a custom hash function
      • You can provide a non-cryto hash function for performance reasons
    • add output.globalObject config option to allow to choose the global object reference in runtime exitCode
  • Runtime
    • Error for chunk loading now includes more information and two new properties type and request.
  • Devtool
    • remove comment footer from SourceMaps and eval
    • add support for include test and exclude to the eval source map devtool plugin
  • Performance
    • webpacks AST can be passed directly from loader to webpack to avoid extra parsing
    • Unused modules are no longer unnecessarly concatenated
    • Add a ProfilingPlugin which write a (Chrome) profile file which includes timings of plugins
    • Migrate to using for of instead of forEach
    • Migrate to using Map and Set instead of Objects
    • Migrate to using includes instead of indexOf
    • Replaced some RegExp with string methods
    • Queue don't enqueues the same job twice
    • Use faster md4 hash for hashing by default
  • Optimization
    • When using more than 25 exports mangled export names are shorter.
    • script tags are no longer text/javascript and async as this are the default values (saves a few bytes)
    • The concatenated module now generates a bit less code
    • constant replacements now don't need __webpack_require__ and argument is omitted
  • Defaults
    • webpack now looks for the .wasm, .mjs, .js and .json extensions in this order
    • output.pathinfo is now on by default in develoment mode
    • in-memory caching is now off by default in production
    • entry defaults to ./src
    • output.path defaults to ./dist
    • Use production defaults when omiting the mode option
  • Usage
    • Add detailed progress reporting to SourceMapDevToolPlugin
    • removed plugins now give a useful error message
  • Stats
    • Sizes are now shown in kiB instead of kB in Stats
    • entrypoints are now shows by default in Stats
    • chunks now display <{parents}> >{children}< and ={siblings}= in Stats
    • add buildAt time to stats
    • stats json now includes the output path
  • Syntax
    • A resource query is supported in context
    • Referencing entry point name in import() now emits a error instead of a warning
    • Upgraded to acorn 5 and support ES 2018
  • Plugins
    • done is now an async hook

Bugfixes

  • Generated comments no longer break on */
  • webpack no longer modifies the passed options object
  • Compiler "watch-run" hook now has the Compiler as first parameter
  • add output.chunkCallbackName to the schema to allow configurating WebWorker template
  • Using module.id/loaded now correctly bails out of Module Concatentation (Scope Hoisting)
  • OccurenceOrderPlugin now sorts modules in correct order (instead of reversed)
  • timestamps for files are read from watcher when calling Watching.invalidate
  • fix incorrect -! behavior with post loaders
  • add run and watchRun hooks for MultiCompiler
  • this is now undefined in ESM
  • VariableDeclaration are correctly identified as var, const or let
  • Parser now parse the source code with the correct source type (module/script) when the module type javascript/dynamic or javascript/module is used.
  • don't crash on missing modules with buildMeta of null
  • add original-fs module for electron targets
  • HMRPlugin can be added to the Compiler outside of plugins

Internal changes

  • Replaced plugin calls with tap calls (new plugin system)
  • Migrated many deprecated plugins to new plugin system API
  • added buildMeta.exportsType: "default" for json modules
  • Remove unused methods from Parser (parserStringArray, parserCalculatedStringArray)
  • Remove ability to clear BasicEvaluatedExpression and to have multiple types
  • Buffer.from instead of new Buffer
  • Avoid using forEach and use for of instead
  • Use neo-async instead of async
  • Update tapable and enhanced-resolve dependencies to new major versions
  • Use prettier

Removed features

  • removed module.loaders
  • removed loaderContext.options
  • removed Compilation.notCacheable flag
  • removed NoErrorsPlugin
  • removed Dependency.isEqualResource
  • removed NewWatchingPlugin
  • removed CommonsChunkPlugin

Breaking changes for plugins/loaders

  • new plugin system
    • plugin method is backward-compatible
    • Plugins should use Compiler.hooks.xxx.tap(<plugin name>, fn) now
  • New major version of enhanced-resolve
  • Templates for chunks may now generate multiple assets
  • Chunk.chunks/parents/blocks are no longer Arrays. A Set is used internally and there are methods to access it.
  • Parser.scope.renames and Parser.scope.definitions are no longer Objects/Arrays, but Map/Sets.
  • Parser uses StackedSetMap (LevelDB-like datastructure) instead of Arrays
  • Compiler.options is no longer set while applying plugins
  • Harmony Dependencies has changed because of refactoring
  • Dependency.getReference() may now return a weak property. Dependency.weak is now used by the Dependency base class and returned in the base impl of getReference()
  • Constructor arguments changed for all Modules
  • Merged options into options object for ContextModule and resolveDependencies
  • Changed and renamed dependencies for `import()
  • Moved Compiler.resolvers into Compiler.resolverFactory accessible with plugins
  • Dependency.isEqualResource has been replaced with Dependency.getResourceIdentifier
  • Methods on Template are now static
  • A new RuntimeTemplate class has been added and outputOptions and requestShortener has been moved to this class
    • Many methods has been updated to use the RuntimeTemplate instead
    • We plan to move code which accesses the runtime to this new class
  • Module.meta has been replaced with Module.buildMeta
  • Module.buildInfo and Module.factoryMeta have been added
  • Some properties of Module have been moved into the new objects
  • added loaderContext.rootContext which points to the context options. Loaders may use it to make stuff relative to the application root.
  • add this.hot flag to loader context when HMR is enabled
  • buildMeta.harmony has been replaced with buildMeta.exportsType: "namespace
  • The chunk graph has changed:
    • Before: Chunks were connected with parent-child-relationships.
    • Now: ChunkGroups are connected with parent-child-relationships. ChunkGroups contain Chunks in order.
    • Before: AsyncDependenciesBlocks reference a list of Chunks in order.
    • Now: AsyncDependenciesBlocks reference a single ChunkGroup.
  • file/contextTimestamps are Maps now
  • map/foreach Chunks/Modules/Parents methods are now deprecated/removed
  • NormalModule accept options object in Constructor
  • Added required generator argument for NormalModule
  • Added createGenerator and generator hooks for NormalModuleFactory to customize code generation
  • Allow to customize render manifest for Chunks via hooks

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Coverage Status

Coverage remained the same at 96.835% when pulling fd47f7d on renovate/webpack-4.x into a5e221f on master.

@wagnerand wagnerand merged commit b6248ca into master Jan 28, 2019
@wagnerand wagnerand deleted the renovate/webpack-4.x branch January 28, 2019 22:19
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3 participants