New emit pipeline and API/CLI refactor (#511)

* New emit pipeline and API/CLI refactor

* Move high-level API to index file

* Extract multi-file `transpileString`  input to `transpileVirtualProgram`

* Return an results from emitTranspiledFiles instead of a using a callback

* Refactor CommandLineParser and further CLI refactor

* Fix strict issues

* Fix rootDir and outDir defaults always being used

* Remove failing test

* Remove command line parser tests that test standard TS parser features

* Use tsconfig source file during parse to get better diagnostics

* Parse command line options more similar to typescript

* Refactor commandLineParser tests

* Rename transpileVirtualProgram to transpileVirtualProject

* Remove export from CLI

* Add expect(received).toHaveDiagnostics() matcher

* Parse command line options case-insensitively

* Disallow unknown options in "tstl" config object

* Rename compiler tests to CLI tests

* Refactor CLI tests

* Add transpile tests

* Fix invalid behavior with relative outFile and outDir

* Rename getTranspileOutput to getTranspilationResult

* Remove `options` argument from `getTranspilationResult`

* Rename getTranspilationResult to transpile

* Extract luaLibImport to a variable

* Add command line parsing integration tests

* Make diagnostics use node's source file instead of transformed one

* Cast getCompilerOptions calls to custom compiler options

* Export TranspileError and all LuaTransformer exports from package index

* Remove options argument from LuaTransformer

* Rename sourceFile variable

* Set printer default during destructuring

* Rename

* Use emitTranspiledFiles in transpileFiles and transpileProject

* Use transpileFiles in transpile tests runner

* Fix typos

* Deprecate root-level options

* Move TranspileError diagnostic to diagnostics.ts

* Add source to custom diagnostics

* Show custom diagnostics as `TSTL<code>` in CLI

* Fix quotes

* Always import tstl as a namespace in tests

* Simplify tstl object formatting in deprecation warning

* Add Lua AST to TranspiledFile interface

.prettierignore

@@ -1,6 +1,5 @@
 /dist
 /coverage
-/test/compiler/testfiles/invalid_syntax.ts
 /test/translation/transformation/characterEscapeSequence.ts
 
 /src

build_lualib.ts

@@ -1,34 +1,27 @@
 import * as fs from "fs";
 import * as glob from "glob";
-import { compile } from "./src/Compiler";
-import { LuaLib as luaLib, LuaLibFeature } from "./src/LuaLib";
+import * as path from "path";
+import * as ts from "typescript";
+import * as tstl from "./src";
+import { LuaLib } from "./src/LuaLib";
 
-const bundlePath = "./dist/lualib/lualib_bundle.lua";
+const options: tstl.CompilerOptions = {
+    skipLibCheck: true,
+    types: [],
+    luaLibImport: tstl.LuaLibImportKind.None,
+    luaTarget: tstl.LuaTarget.Lua51,
+    noHeader: true,
+    outDir: path.join(__dirname, "./dist/lualib"),
+    rootDir: path.join(__dirname, "./src/lualib"),
+};
 
-compile([
-    "--skipLibCheck",
-    "--types",
-    "node",
-    "--luaLibImport",
-    "none",
-    "--luaTarget",
-    "5.1",
-    "--noHeader",
-    "--outDir",
-    "./dist/lualib",
-    "--rootDir",
-    "./src/lualib",
-    "--noHeader",
-    "true",
-    ...glob.sync("./src/lualib/**/*.ts"),
-]);
+// TODO: Check diagnostics
+const { emitResult } = tstl.transpileFiles(glob.sync("./src/lualib/**/*.ts"), options);
+emitResult.forEach(({ name, text }) => ts.sys.writeFile(name, text));
 
+const bundlePath = path.join(__dirname, "./dist/lualib/lualib_bundle.lua");
 if (fs.existsSync(bundlePath)) {
     fs.unlinkSync(bundlePath);
 }
 
-const features = Object.keys(LuaLibFeature).map(
-    lib => LuaLibFeature[lib as keyof typeof LuaLibFeature],
-);
-const bundle = luaLib.loadFeatures(features);
-fs.writeFileSync(bundlePath, bundle);
+fs.writeFileSync(bundlePath, LuaLib.loadFeatures(Object.values(tstl.LuaLibFeature)));

jest.config.js

@@ -3,9 +3,15 @@ const isCI = require("is-ci");
 /** @type {Partial<import("@jest/types").Config.DefaultOptions>} */
 module.exports = {
     testMatch: ["**/test/**/*.spec.ts"],
-    collectCoverageFrom: ["<rootDir>/src/**/*", "!<rootDir>/src/lualib/**/*"],
-    watchPathIgnorePatterns: ["/watch\\.ts$"],
+    collectCoverageFrom: [
+        "<rootDir>/src/**/*",
+        "!<rootDir>/src/lualib/**/*",
+        // https://github.com/facebook/jest/issues/5274
+        "!<rootDir>/src/tstl.ts",
+    ],
+    watchPathIgnorePatterns: ["cli/watch/[^/]+$"],
 
+    setupFilesAfterEnv: ["<rootDir>/test/setup.ts"],
     testEnvironment: "node",
     testRunner: "jest-circus/runner",
     preset: "ts-jest",

package.json

@@ -45,7 +45,7 @@
     "devDependencies": {
         "@types/glob": "^5.0.35",
         "@types/jest": "^24.0.11",
-        "@types/node": "^9.6.23",
+        "@types/node": "^11.13.0",
         "fengari": "^0.1.2",
         "glob": "^7.1.2",
         "jest": "^24.5.0",