chore: convert config files to TypeScript

Author: felixfbecker

.npmignore

@@ -0,0 +1,56 @@
+import { Config, ConfigOptions } from 'karma'
+import webpackConfig from './webpack.test.config'
+
+export default (config: Config): void => {
+    config.set({
+        frameworks: ['mocha', 'chai', 'sinon'],
+
+        files: [
+            {
+                pattern: 'src/**/*.ts',
+                watched: false,
+                included: true,
+                served: true,
+            },
+            {
+                pattern: 'src/**/*.tsx',
+                watched: false,
+                included: true,
+                served: true,
+            },
+        ],
+        preprocessors: {
+            'src/**/*.ts?(x)': ['webpack', 'sourcemap'],
+        },
+
+        // Ignore the npm package entry point
+        exclude: ['src/index.ts'],
+
+        // karma-webpack doesn't change the file extensions so we just need to tell karma what these extensions mean.
+        mime: {
+            'text/x-typescript': ['ts', 'tsx'],
+        },
+
+        webpack: webpackConfig,
+
+        webpackMiddleware: {
+            stats: 'errors-only',
+            bail: true,
+        },
+
+        browsers: ['Chrome', 'Firefox'],
+        customLaunchers: {
+            ChromeHeadlessNoSandbox: {
+                base: 'ChromeHeadless',
+                // CI runs as root so we need to disable sandbox
+                flags: ['--no-sandbox', '--disable-setuid-sandbox'],
+            },
+        },
+
+        reporters: ['progress', 'coverage-istanbul'],
+        coverageIstanbulReporter: {
+            reports: ['json'],
+            fixWebpackSourcePaths: true,
+        },
+    } as ConfigOptions)
+}

karma.conf.js

@@ -10,10 +10,10 @@
     "commitmsg": "commitlint -e $GIT_PARAMS",
     "prettier": "prettier '**/{*.{js?(on),ts?(x),scss},.*.js?(on)}' --write --list-different",
     "tslint": "tslint -c tslint.json -p tsconfig.json 'src/*.ts?(x)'",
-    "build": "tsc -p .",
-    "watch": "tsc -p . -w",
-    "test": "karma start",
-    "pretest": "ts-node --project ./testdata/tsconfig.json ./testdata/generate.ts"
+    "build": "tsc -p tsconfig.dist.json",
+    "watch": "npm run build -- --watch",
+    "test": "TS_NODE_COMPILER_OPTIONS='{\"module\":\"commonjs\"}' karma start",
+    "pretest": "TS_NODE_COMPILER_OPTIONS='{\"module\":\"commonjs\"}' ts-node ./testdata/generate.ts"
   },
   "commitlint": {
     "extends": [
@@ -43,6 +43,8 @@
     "@types/chai": "^4.1.4",
     "@types/fs-extra": "^5.0.3",
     "@types/highlight.js": "^9.12.3",
+    "@types/karma": "^1.7.3",
+    "@types/karma-webpack": "^2.0.4",
     "@types/lodash": "^4.14.110",
     "@types/marked": "^0.4.0",
     "@types/mocha": "^5.2.3",

karma.conf.ts

@@ -1,6 +1,6 @@
 // import githubCode from '../../testdata/generated/github.html'
 import sourcegraphCode from '../../testdata/generated/sourcegraph.html'
-import { TEST_DATA_REVSPEC } from '../../testdata/rev'
+import { TEST_DATA_REVSPEC } from './rev'
 
 export const getTextNodes = (node: Node): Node[] => {
     if (node.childNodes.length === 0 && node.TEXT_NODE === node.nodeType && node.nodeValue) {

package-lock.json

@@ -0,0 +1,5 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src/**/*"],
+  "exclude": ["src/**/*.test.ts", "src/testutils"]
+}

package.json

@@ -10,8 +10,7 @@
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "jsx": "react",
-    "sourceRoot": "src",
-    "lib": ["es2017", "dom", "dom.iterable"]
-  },
-  "include": ["src/**/*"]
+    "lib": ["es2017", "dom", "dom.iterable"],
+    "sourceRoot": "src"
+  }
 }