Bare imports without lib/ and es6/ directories

.gitignore

@@ -1,7 +1,6 @@
 *.log
 node_modules
-lib
-es6
+/dist
 dev
 coverage
 declaration/out/src

package.json

@@ -2,10 +2,6 @@
   "name": "io-ts",
   "version": "2.2.9",
   "description": "TypeScript runtime type system for IO decoding/encoding",
-  "files": [
-    "lib",
-    "es6"
-  ],
   "main": "lib/index.js",
   "module": "es6/index.js",
   "typings": "lib/index.d.ts",
@@ -16,14 +12,18 @@
     "prettier": "prettier --no-semi --single-quote --print-width 120 --parser typescript --list-different \"{src,test}/**/*.ts\"",
     "fix-prettier": "prettier --no-semi --single-quote --print-width 120 --parser typescript --write \"{src,test,examples,exercises}/**/*.ts\"",
     "test": "npm run prettier && npm run lint && npm run dtslint && npm run jest && npm run docs",
-    "clean": "rimraf lib/* es6/*",
-    "build": "npm run clean && tsc && tsc -p tsconfig.es6.json && npm run import-path-rewrite",
-    "prepublish": "npm run build",
+    "clean": "rm -rf ./dist",
+    "prebuild": "npm run clean",
+    "build": "tsc -p ./tsconfig.build.json && tsc -p ./tsconfig.build-es6.json && npm run import-path-rewrite && ts-node scripts/build",
+    "postbuild": "prettier --loglevel=silent --write \"./dist/**/*.ts\"",
+    "prepublishOnly": "ts-node scripts/pre-publish",
     "perf": "ts-node perf/index",
     "dtslint": "dtslint dtslint",
     "mocha": "TS_NODE_CACHE=false mocha -r ts-node/register test/*.ts",
     "doctoc": "doctoc README.md index.md Decoder.md Encoder.md Codec.md Eq.md Schema.md",
     "docs": "docs-ts",
+    "prerelease": "npm run build",
+    "release": "ts-node scripts/release",
     "import-path-rewrite": "import-path-rewrite"
   },
   "repository": {

scripts/FileSystem.ts

@@ -0,0 +1,29 @@
+import * as TE from 'fp-ts/TaskEither'
+import { flow } from 'fp-ts/function'
+import * as fs from 'fs'
+import G from 'glob'
+
+export interface FileSystem {
+  readonly readFile: (path: string) => TE.TaskEither<Error, string>
+  readonly writeFile: (path: string, content: string) => TE.TaskEither<Error, void>
+  readonly copyFile: (from: string, to: string) => TE.TaskEither<Error, void>
+  readonly glob: (pattern: string) => TE.TaskEither<Error, ReadonlyArray<string>>
+  readonly mkdir: (path: string) => TE.TaskEither<Error, void>
+}
+
+const readFile = TE.taskify<fs.PathLike, string, NodeJS.ErrnoException, string>(fs.readFile)
+const writeFile = TE.taskify<fs.PathLike, string, NodeJS.ErrnoException, void>(fs.writeFile)
+const copyFile = TE.taskify<fs.PathLike, fs.PathLike, NodeJS.ErrnoException, void>(fs.copyFile)
+const glob = TE.taskify<string, Error, ReadonlyArray<string>>(G)
+const mkdirTE = TE.taskify(fs.mkdir)
+
+export const fileSystem: FileSystem = {
+  readFile: (path) => readFile(path, 'utf8'),
+  writeFile,
+  copyFile,
+  glob,
+  mkdir: flow(
+    mkdirTE,
+    TE.map(() => undefined)
+  )
+}

scripts/build.ts

@@ -0,0 +1,88 @@
+import * as path from 'path'
+import * as E from 'fp-ts/Either'
+import { pipe } from 'fp-ts/function'
+import * as RTE from 'fp-ts/ReaderTaskEither'
+import * as A from 'fp-ts/ReadonlyArray'
+import * as TE from 'fp-ts/TaskEither'
+import { FileSystem, fileSystem } from './FileSystem'
+import { run } from './run'
+
+interface Build<A> extends RTE.ReaderTaskEither<FileSystem, Error, A> {}
+
+const OUTPUT_FOLDER = 'dist'
+const PKG = 'package.json'
+
+export const copyPackageJson: Build<void> = (C) =>
+  pipe(
+    C.readFile(PKG),
+    TE.chain((s) => TE.fromEither(E.parseJSON(s, E.toError))),
+    TE.map((v) => {
+      const clone = Object.assign({}, v as any)
+
+      delete clone.scripts
+      delete clone.files
+      delete clone.devDependencies
+
+      return clone
+    }),
+    TE.chain((json) => C.writeFile(path.join(OUTPUT_FOLDER, PKG), JSON.stringify(json, null, 2)))
+  )
+
+export const FILES: ReadonlyArray<string> = ['CHANGELOG.md', 'LICENSE', 'README.md']
+
+export const copyFiles: Build<ReadonlyArray<void>> = (C) =>
+  pipe(
+    FILES,
+    A.traverse(TE.taskEither)((from) => C.copyFile(from, path.resolve(OUTPUT_FOLDER, from)))
+  )
+
+const traverse = A.traverse(TE.taskEither)
+
+export const makeModules: Build<void> = (C) =>
+  pipe(
+    C.glob(`${OUTPUT_FOLDER}/lib/*.js`),
+    TE.map(getModules),
+    TE.chain(traverse(makeSingleModule(C))),
+    TE.map(() => undefined)
+  )
+
+function getModules(paths: ReadonlyArray<string>): ReadonlyArray<string> {
+  return paths.map((filePath) => path.basename(filePath, '.js')).filter((x) => x !== 'index')
+}
+
+function makeSingleModule(C: FileSystem): (module: string) => TE.TaskEither<Error, void> {
+  return (m) =>
+    pipe(
+      C.mkdir(path.join(OUTPUT_FOLDER, m)),
+      TE.chain(() => makePkgJson(m)),
+      TE.chain((data) => C.writeFile(path.join(OUTPUT_FOLDER, m, 'package.json'), data))
+    )
+}
+
+function makePkgJson(module: string): TE.TaskEither<Error, string> {
+  return pipe(
+    JSON.stringify(
+      {
+        main: `../lib/${module}.js`,
+        module: `../es6/${module}.js`,
+        typings: `../lib/${module}.d.ts`,
+        sideEffects: false
+      },
+      null,
+      2
+    ),
+    TE.right
+  )
+}
+
+const main: Build<void> = pipe(
+  copyPackageJson,
+  RTE.chain(() => copyFiles),
+  RTE.chain(() => makeModules)
+)
+
+run(
+  main({
+    ...fileSystem
+  })
+)

scripts/pre-publish.ts

@@ -0,0 +1,7 @@
+import { left } from 'fp-ts/TaskEither'
+import { run } from './run'
+
+const main = left(new Error('"npm publish" can not be run from root, run "npm run release" instead'))
+
+run(main)
+

scripts/release.ts

@@ -0,0 +1,23 @@
+import { run } from './run'
+import * as child_process from 'child_process'
+import { left, right } from 'fp-ts/Either'
+import * as TE from 'fp-ts/TaskEither'
+
+const DIST = 'dist'
+
+const exec = (cmd: string, args?: child_process.ExecOptions): TE.TaskEither<Error, void> => () =>
+  new Promise((resolve) => {
+    child_process.exec(cmd, args, (err) => {
+      if (err !== null) {
+        return resolve(left(err))
+      }
+
+      return resolve(right(undefined))
+    })
+  })
+
+export const main = exec('npm publish', {
+  cwd: DIST
+})
+
+run(main)

scripts/run.ts

@@ -0,0 +1,21 @@
+import { fold } from 'fp-ts/Either'
+import { TaskEither } from 'fp-ts/TaskEither'
+
+export function run<A>(eff: TaskEither<Error, A>): void {
+  eff()
+    .then(
+      fold(
+        (e) => {
+          throw e
+        },
+        (_) => {
+          process.exitCode = 0
+        }
+      )
+    )
+    .catch((e) => {
+      console.error(e) // tslint:disable-line no-console
+
+      process.exitCode = 1
+    })
+}

tsconfig.build-es6.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig.build.json",
+  "compilerOptions": {
+    "outDir": "./dist/es6",
+    "module": "es6"
+  }
+}

tsconfig.es6.json → tsconfig.build.json

@@ -1,7 +1,7 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
-    "outDir": "./es6",
-    "module": "es6"
-  }
+    "noEmit": false
+  },
+  "include": ["./src"]
 }

tsconfig.json

@@ -1,13 +1,14 @@
 {
   "compilerOptions": {
-    "outDir": "./lib",
+    "outDir": "./dist/lib",
+    "noEmit": true,
     "declaration": true,
+    "esModuleInterop": true,
     "module": "commonjs",
     "noImplicitReturns": false,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
-    "noEmitOnError": false,
     "strict": true,
     "target": "es5",
     "moduleResolution": "node",