feat: initial commit

.devcontainer/devcontainer.json

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+{
+    "name": "TypeScriptToLua",
+    "image": "mcr.microsoft.com/vscode/devcontainers/javascript-node:14",
+    "settings": {
+        "terminal.integrated.shell.linux": "/bin/bash"
+    },
+    "extensions": [
+        "typescript-to-lua.vscode-typescript-to-lua",
+        "dbaeumer.vscode-eslint",
+        "editorconfig.editorconfig",
+        "esbenp.prettier-vscode"
+    ],
+    "postCreateCommand": "npm ci"
+}

.gitattributes

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+* text=auto eol=lf
+*.{cmd,[cC][mM][dD]} text eol=crlf
+*.{bat,[bB][aA][tT]} text eol=crlf

.gitignore

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+node_modules
+/dist
+
+yarn.lock
+.vscode
+.idea
+.DS_Store

.prettierignore

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+package.json
+package-lock.json

.prettierrc.json

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+{
+    "printWidth": 120,
+    "tabWidth": 4,
+    "arrowParens": "avoid",
+    "overrides": [{ "files": ["**/*.md", "**/*.yml"], "options": { "tabWidth": 2 } }]
+}

README.md

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+# railworks-tstl-template
+
+Write scripts for Train Simulator in TypeScript with the help of [TypeScriptToLua](https://typescripttolua.github.io/)!

gulpfile.js

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+const fsPromises = require("fs/promises"),
+    gulp = require("gulp"),
+    filter = require("gulp-filter"),
+    flatmap = require("gulp-flatmap"),
+    intermediate = require("gulp-intermediate"),
+    rename = require("gulp-rename"),
+    path = require("path"),
+    ts = require("typescript"),
+    tstl = require("typescript-to-lua");
+
+exports.default = exports.tstl = function (cb) {
+    return gulp
+        .src("src/mod/**/*.ts", { base: "src" })
+        .pipe(
+            flatmap(function (stream, file) {
+                return stream
+                    .pipe(gulp.src(["src/@types/**/*", "src/lib/**/*.ts"], { base: "src" }))
+                    .pipe(
+                        gulp.src(["node_modules/lua-types/**/*", "node_modules/typescript-to-lua/**/*"], { base: "." })
+                    )
+                    .pipe(
+                        intermediate({}, async function (tempDir, cb) {
+                            await compileLua(tempDir, file.relative);
+                            cb();
+                        })
+                    )
+                    .pipe(filter(["mod/**/*.lua"]));
+            })
+        )
+        .pipe(
+            rename(function (path) {
+                path.dirname = path.dirname.replace(/^mod\//, "");
+            })
+        )
+        .pipe(gulp.dest("dist"));
+};
+
+async function compileLua(tempDir, luaPath) {
+    // We need the root tsconfig.json node to set the value of "include".
+    const tsconfig = path.join(tempDir, "tsconfig.json");
+    await fsPromises.writeFile(
+        tsconfig,
+        `{ "include": ["${path.join(tempDir, "@types")}", "${path.join(tempDir, "mod")}"] }`
+    );
+
+    const result = tstl.transpileProject(tsconfig, {
+        types: ["lua-types/5.0"],
+        typeRoots: [path.join(tempDir, "@types")],
+        luaTarget: tstl.LuaTarget.Lua50,
+        luaLibImport: tstl.LuaLibImportKind.Inline,
+        sourceMapTraceback: false,
+        luaBundle: path.join(path.dirname(luaPath), path.basename(luaPath, ".ts") + ".lua"),
+        // The entry path needs to be absolute so that TSTL sets the correct module name.
+        luaBundleEntry: path.join(tempDir, luaPath),
+    });
+    printDiagnostics(result.diagnostics);
+}
+
+function printDiagnostics(diagnostics) {
+    console.log(
+        ts.formatDiagnosticsWithColorAndContext(diagnostics, {
+            getCurrentDirectory: () => ts.sys.getCurrentDirectory(),
+            getCanonicalFileName: f => f,
+            getNewLine: () => "\n",
+        })
+    );
+}