Adds Support for WSL Users

package.json

@@ -18,7 +18,7 @@
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
   "scripts": {
-    "build": "tsc",
+    "build": "tsc --build",
     "dev": "tsc --watch",
     "lint": "run-s lint:prettier lint:tslint",
     "lint:prettier": "prettier --check **/*.{ts,md,yml,json}",
@@ -44,6 +44,7 @@
     "@ark120202/typescript-config": "^2.0.0",
     "@types/execa": "^0.9.0",
     "@types/fs-extra": "^5.0.5",
+    "@types/node": "^10.12.18",
     "@typescript-eslint/eslint-plugin": "^4.31.2",
     "@typescript-eslint/parser": "^4.31.2",
     "eslint": "^7.32.0",

src/libraries.ts

@@ -2,12 +2,19 @@ import fs from 'fs-extra';
 import path from 'path';
 import vdf from 'vdf-extra';
 
+interface FolderDetails {
+  path: string
+  label: string
+  contentid: number
+  totalsize: number
+  update_clean_bytes_tally: number
+  time_last_update_corruption: number
+  apps: Object
+}
+
 interface LibraryFolders {
-  [id: string]:
-    | {
-        path: string;
-      }
-    | string;
+ '0': FolderDetails
+  contentstatsid: string
 }
 
 export async function loadSteamLibraries(steam: string) {
@@ -18,9 +25,7 @@ export async function loadSteamLibraries(steam: string) {
 
   const libraries = Object.entries(libraryFoldersData)
     .filter(([id]) => !isNaN(Number(id)))
-    .map(([, libPath]) =>
-      path.join(typeof libPath === 'string' ? libPath : libPath.path, 'steamapps'),
-    );
+    .map(([_, libPath]) => path.join(libPath.path, 'steamapps'));
 
   return [mainSteamApps, ...libraries];
 }

src/steam.ts

@@ -1,6 +1,7 @@
-import execa from 'execa';
-import fs from 'fs-extra';
-import path from 'path';
+import * as execa from 'execa';
+import * as fs from 'fs-extra';
+import * as path from 'path';
+import * as os from 'os';
 
 const pathIfExists = async (name: string) => ((await fs.pathExists(name)) ? name : undefined);
 const getRegExePath = () =>
@@ -10,13 +11,8 @@ const getRegExePath = () =>
 
 const REG_TREE_PATH = 'HKCU\\Software\\Valve\\Steam';
 const REG_KEY_NOT_FOUND = 'The system was unable to find the specified registry key or value';
-async function windows() {
-  let programFiles = process.env['ProgramFiles(x86)'];
-  if (programFiles == null) programFiles = process.env.ProgramFiles;
-  if (programFiles != null && (await fs.pathExists(`${programFiles}/Steam/Steam.exe`))) {
-    return `${programFiles}/Steam`;
-  }
 
+async function getPathHKCU () {
   try {
     const output = await execa.stdout(
       getRegExePath(),
@@ -34,6 +30,35 @@ async function windows() {
   }
 }
 
+async function windows() {
+  let programFiles = process.env['ProgramFiles(x86)'];
+  if (programFiles == null) programFiles = process.env.ProgramFiles;
+  if (programFiles != null && (await fs.pathExists(`${programFiles}\\Steam\\Steam.exe`))) {
+    return `${programFiles}\\Steam`;
+  }
+
+  return getPathHKCU();
+}
+
+const releaseName = os.release();
+const isWSL = () => process.env.WSL_DISTRO_NAME != null && releaseName.includes('microsoft');
+
+async function wsl (): Promise<string|undefined> {
+  const mountDir = '/mnt';
+  const mountableDrives = fs.readdirSync(mountDir)
+  // NOTE: WSL does not support 32 bit windows systems
+  const steamDir = 'Program Files (x86)/Steam'
+  const defaultPath = `${mountDir}/c/${steamDir}`
+
+  for (const drive of mountableDrives) {
+    const steamPath = path.join(mountDir, drive, steamDir)
+    if (await fs.pathExists(steamPath) === true) {
+      return steamPath
+    }
+  }
+
+  return pathIfExists(defaultPath)
+}
 /**
  * Searches for Steam.
  *
@@ -44,7 +69,9 @@ export async function findSteam() {
     case 'win32':
       return windows();
     case 'linux':
-      return pathIfExists(`${process.env.HOME}/.local/share/Steam`);
+      return isWSL() === true
+        ? wsl()
+        : pathIfExists(`${process.env.HOME}/.local/share/Steam`);
     case 'darwin':
       return pathIfExists(`${process.env.HOME}/Library/Application Support/Steam`);
     default: