WIP Changes for webpack 4 (#710)

* initial migration - tests mostly failing

* Fix parens / drop node 4

* comment out after-compile to illustrate lack of hanging

* `after-compile` works; registering errors with webpack whilst doing so does not

* Update .travis.yml - travis-ci/travis-ci#8836 (comment)

* register errors again

* include lock file

* move to webpack 5 and typescript 2.7

* Get webpack running again

* simplify error registration

* Add mode: 'development' to all comparison tests

* added mode: 'development' to execution tests

* fixed many execution tests

* First go at getting this running with webpack 4

* Skip babel execution tests for now

* add package.json to execution tests

* Change path method

* fix babel-codeSplitting test

* add mode to all karma.confs

* Fix node resolution test hopefully

* Fix minor bug

* exclude happypack test

* update version to 4

* update minimum node to 6.11.5 aligned with webpack 4

* move to use node typings from definitely typed

* Fix comparison tests that start with "a" :-(

* regenerate "b" test output

* regenerate "c" output text

* regenerate "d" output tests

* regenerate "e" test output

* "i" test output

* "l" comparison tests regenerated

* migrate fork-ts-checker example to use webpack 4 betas

* migrate vanilla example to webpack 4 beta

* more test generation

* up to "s" test generation

* Finish test generation

* fix broken tests

* Fix tests

* fix tests

* make comparison tests more patient

* if a round number then that's fine

* more patient still

* cater for carriage returns

* ignore stars

* more

* slightly less brittle

* better regex

* The regex tweaks continue

* better regex

* regex regex regex

* regex is painful

* cater for C:/

* Regenerate test output

* fix npmLink

* getting closer

* striving for perfection

* revert test output

* different regex

* cater for other path

* upgrade to TypeScript 2.7.1

* drop support for TypeScript < 2.4.1 and removed depecated entryFileCannotBeJs option

* update karma to 2.0

* change author to John Reilly with James Brantly's agreement

* upgrade to webpack 4 beta 1

* regenerate test output for webpack 4 beta 1

* Ignore "Built at:" in test output

* more tolerant Built at: regex

* removed 3 of the examples

* upgrade to webpack 4 beta 2

.travis.yml

@@ -11,12 +11,9 @@ install:
   - yarn build
   - yarn add $TYPESCRIPT
 env:
-  - TYPESCRIPT=typescript@2.7.0-rc
+  - TYPESCRIPT=typescript@2.7.1
   - TYPESCRIPT=typescript@next
   - TYPESCRIPT=typescript@2.6.1
   - TYPESCRIPT=typescript@2.5.2
   - TYPESCRIPT=typescript@2.4.1
-  - TYPESCRIPT=typescript@2.3.1
-  - TYPESCRIPT=typescript@2.2.1
-  - TYPESCRIPT=typescript@2.1.5
-  - TYPESCRIPT=typescript@2.0.9
+

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## v4.0.0
+
+- Support webpack 4
+- Drop support for webpack 2/3 **BREAKING CHANGE**
+- Minimum TypeScript version: 2.4.1 **BREAKING CHANGE**
+- Deprecated option `entryFileCannotBeJs` removed' **BREAKING CHANGE**
 ## v3.5.0
 
 - [Add trace for traceResolution](https://github.com/TypeStrong/ts-loader/pull/721) - thanks @onigoetz!

HISTORY.md

@@ -0,0 +1,7 @@
+# History
+
+`ts-loader` was started by [James Brantly](http://www.jbrantly.com/) back in January 2015. He created the initial codebase, wrote the comparison testpack and merrily maintained it until it reached v0.8.2.
+
+At that point [John Reilly](https://blog.johnnyreilly.com/) started maintaining ts-loader. [On October 16th 2016 to be exact](https://twitter.com/jbrantly/status/785931975064444928).  The full story of how that came to be can be read here: https://blog.johnnyreilly.com/2016/11/but-you-cant-die-i-love-you-ts-loader.html 
+
+Since that time, John (who wrote this and finds it peculiar to refer to himself in the third person) has continued maintaining ts-loader. He appreciates any and all people that contribute. Who knows, maybe one day the mantle will be passed on again and someone else will step up and take ts-loader forwards. Who knows? It could be you ;-) 

README.md

@@ -64,9 +64,9 @@ build system using the [Node.js API](http://webpack.github.io/docs/node.js-api.h
 
 ### Compatibility
 
-#### TypeScript / Webpack
-
-ts-loader supports the latest and greatest version of TypeScript right back to v2.0. ts-loader supports webpack 3.  Our continuous integration test suites run against webpack 3; **not** webpack 2. That said, ts-loader worked fine with webpack 2 when we last checked.
+- TypeScript: 2.4.1+
+- webpack: 4.x+ (please use ts-loader 3.x if you need webpack 2 or 3 support)
+- node: 6.11.5 minimum (aligned with webpack 4)
 
 A full test suite runs each night (and on each pull request). It runs both on [Linux](https://travis-ci.org/TypeStrong/ts-loader) and [Windows](https://ci.appveyor.com/project/JohnReilly/ts-loader), testing ts-loader against major releases of TypeScript.  The test suite also runs against TypeScript@next (because we want to use it as much as you do).
 
@@ -78,6 +78,7 @@ If you become aware of issues not caught by the test suite then please let us kn
 
     ```javascript
     module.exports = {
+      mode: 'development',
       devtool: 'inline-source-map',
       entry: './app.ts',
       output: {
@@ -329,12 +330,6 @@ Advanced option to force files to go through different instances of the
 TypeScript compiler. Can be used to force segregation between different parts
 of your code.
 
-#### entryFileCannotBeJs *(boolean) (default=false) DEPRECATED*
-
-If the `allowJs` compiler option is `true` then it's possible for your entry files to be JS. There is a [known issue using ts-loader with TypeScript 2.3 and below](https://github.com/TypeStrong/ts-loader/issues/655).  This option exists to work around that issue if you are using ts-loader with TypeScript 2.3 or below.
-
-This option will be removed in a future version of ts-loader.
-
 #### appendTsSuffixTo *(RegExp[]) (default=[])*
 #### appendTsxSuffixTo *(RegExp[]) (default=[])*
 A list of regular expressions to be matched against filename. If filename matches one of the regular expressions, a `.ts` or `.tsx` suffix will be appended to that filename.

appveyor.yml

@@ -3,15 +3,11 @@ environment:
   FORCE_COLOR: 1
   nodejs_version: "8"
   matrix:
-  - TYPESCRIPT: typescript@2.7.0-rc
+  - TYPESCRIPT: typescript@2.7.1
   - TYPESCRIPT: typescript@next
   - TYPESCRIPT: typescript@2.6.1
   - TYPESCRIPT: typescript@2.5.2
   - TYPESCRIPT: typescript@2.4.1
-  - TYPESCRIPT: typescript@2.3.1
-  - TYPESCRIPT: typescript@2.2.1
-  - TYPESCRIPT: typescript@2.1.5
-  - TYPESCRIPT: typescript@2.0.9
 install:
   - ps: Install-Product node $env:nodejs_version
   - yarn install

examples/fork-ts-checker/package.json

@@ -3,12 +3,13 @@
   "main": "index.js",
   "version": "1.0.0",
   "scripts": {
-    "start": "webpack --watch"
+    "start": "webpack --watch --mode development"
   },
   "devDependencies": {
-    "fork-ts-checker-webpack-plugin": "^0.2.0",
-    "ts-loader": "^3.0.3",
-    "typescript": "^2.2.2",
-    "webpack": "^3.8.1"
+    "fork-ts-checker-webpack-plugin": "johnnyreilly/fork-ts-checker-webpack-plugin#4.0.0-beta.0",
+    "ts-loader": "^4.0.0-beta.0",
+    "typescript": "^2.6.2",
+    "webpack": "^4.0.0-beta.0",
+    "webpack-cli": "^2.0.4"
   }
 }