fix: handle Windows backslash paths in encodeProjectPath

.gitignore

@@ -23,6 +23,9 @@ coverage
 # Local MCP config
 .mcp.json
 
+# Claude Code worktrees
+.claude/worktrees
+
 # Proto / Moon
 .moon/cache
 .moon/docker

package.json

@@ -42,7 +42,7 @@
   "scripts": {
     "cli": "bun run src/cli.ts",
     "check": "bun run src/cli.ts check",
-    "lint": "oxlint .",
+    "lint": "oxlint --deny-warnings .",
     "typecheck": "tsc --build",
     "format": "prettier --write .",
     "format:check": "prettier --check .",

src/cli.ts

@@ -15,6 +15,7 @@ import { registerSessionContextCommand } from "./commands/session-context/index"
 import { registerPluginCommand } from "./commands/plugin/index";
 import { checkForUpdatesIfNeeded } from "./helpers/update-check";
 import { logError } from "./helpers/log";
+import { isSupportedPlatform } from "./helpers/platform";
 
 if (typeof Bun === "undefined")
   throw new Error(
@@ -24,7 +25,7 @@ if (typeof Bun === "undefined")
 if (!semver.satisfies(Bun.version, ">=1.2.21"))
   throw new Error("You need to update Bun to version 1.2.21 or higher");
 
-if (!["darwin", "linux", "win32"].includes(process.platform))
+if (!isSupportedPlatform())
   throw new Error("Archgate only supports macOS, Linux, and Windows");
 
 createPathIfNotExists(paths.cacheFolder);

src/commands/upgrade.ts

@@ -1,13 +1,105 @@
 import type { Command } from "@commander-js/extra-typings";
 import { semver } from "bun";
 import { logError } from "../helpers/log";
+import { resolveCommand } from "../helpers/platform";
 
 const NPM_REGISTRY = "https://registry.npmjs.org/archgate/latest";
 
+interface PackageManager {
+  name: string;
+  globalBinCmd: string[];
+  upgradeArgs: string[];
+}
+
+const PACKAGE_MANAGERS: PackageManager[] = [
+  {
+    name: "bun",
+    globalBinCmd: ["bun", "pm", "-g", "bin"],
+    upgradeArgs: ["add", "-g", "archgate@latest"],
+  },
+  {
+    name: "pnpm",
+    globalBinCmd: ["pnpm", "bin", "-g"],
+    upgradeArgs: ["add", "-g", "archgate@latest"],
+  },
+  {
+    name: "yarn",
+    globalBinCmd: ["yarn", "global", "bin"],
+    upgradeArgs: ["global", "add", "archgate@latest"],
+  },
+  {
+    name: "npm",
+    globalBinCmd: ["npm", "bin", "-g"],
+    upgradeArgs: ["install", "-g", "archgate@latest"],
+  },
+];
+
+/**
+ * Get the global bin directory for a package manager.
+ * Returns null if the command is not available or fails.
+ */
+async function getGlobalBinDir(cmd: string[]): Promise<string | null> {
+  try {
+    const proc = Bun.spawn(cmd, { stdout: "pipe", stderr: "pipe" });
+    const stdout = await new Response(proc.stdout).text();
+    const exitCode = await proc.exited;
+    if (exitCode !== 0) return null;
+    return stdout.trim() || null;
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * Detect which package manager installed archgate by checking whether
+ * the running binary lives under each manager's global bin directory.
+ * Resolves all candidates in parallel. Falls back to npm if none match.
+ */
+async function detectPackageManager(): Promise<{
+  cmd: string;
+  args: string[];
+  manualHint: string;
+}> {
+  const binaryPath = process.execPath;
+
+  // Resolve all package managers in parallel
+  const candidates = await Promise.all(
+    PACKAGE_MANAGERS.map(async (pm) => {
+      const resolved = await resolveCommand(pm.name);
+      if (!resolved) return null;
+      const globalBinCmd = [resolved, ...pm.globalBinCmd.slice(1)];
+      const binDir = await getGlobalBinDir(globalBinCmd);
+      return { pm, resolved, binDir };
+    })
+  );
+
+  // Find which PM's global bin dir contains the running binary
+  const match = candidates.find(
+    (c) => c?.binDir && binaryPath.startsWith(c.binDir)
+  );
+
+  if (match) {
+    return {
+      cmd: match.resolved,
+      args: match.pm.upgradeArgs,
+      manualHint: `${match.pm.name} ${match.pm.upgradeArgs.join(" ")}`,
+    };
+  }
+
+  // Default to npm
+  const npmCandidate = candidates.find((c) => c?.pm.name === "npm");
+  const npm = PACKAGE_MANAGERS.find((pm) => pm.name === "npm")!;
+  return {
+    cmd: npmCandidate?.resolved ?? "npm",
+    args: npm.upgradeArgs,
+    manualHint: `npm ${npm.upgradeArgs.join(" ")}`,
+  };
+}
+
 export function registerUpgradeCommand(program: Command) {
   program
     .command("upgrade")
-    .description("Upgrade Archgate to the latest version via npm")
+    .description("Upgrade Archgate to the latest version")
     .action(async () => {
       console.log("Checking for latest Archgate release...");
 
@@ -58,16 +150,18 @@ export function registerUpgradeCommand(program: Command) {
 
       console.log(`Upgrading ${currentVersion} -> ${latestVersion}...`);
 
-      const proc = Bun.spawn(["npm", "install", "-g", "archgate@latest"], {
+      const { cmd, args, manualHint } = await detectPackageManager();
+
+      const proc = Bun.spawn([cmd, ...args], {
         stdout: "inherit",
         stderr: "inherit",
       });
       const exitCode = await proc.exited;
 
       if (exitCode !== 0) {
         logError(
-          "Failed to install the latest version via npm.",
-          "Try running `npm install -g archgate@latest` manually."
+          "Failed to install the latest version.",
+          `Try running \`${manualHint}\` manually.`
         );
         process.exit(1);
       }

src/helpers/auth.ts

@@ -106,7 +106,7 @@ export async function pollForAccessToken(
   const deadline = Date.now() + expiresIn * 1000;
   let pollInterval = interval;
 
-  // eslint-disable-next-line no-await-in-loop -- sequential polling is required by RFC 8628
+  /* oxlint-disable no-await-in-loop -- sequential polling is required by RFC 8628 */
   while (Date.now() < deadline) {
     await Bun.sleep(pollInterval * 1000);
 
@@ -148,6 +148,7 @@ export async function pollForAccessToken(
       );
     }
   }
+  /* oxlint-enable no-await-in-loop */
 
   throw new Error("Device code expired. Please try again.");
 }

src/helpers/git.ts

@@ -1,20 +1,20 @@
 import { logDebug } from "./log";
+import { isWindows, isMacOS, resolveCommand } from "./platform";
 
 export async function installGit() {
-  if (Bun.which("git")) {
+  if (await resolveCommand("git")) {
     logDebug("Git is already installed");
     return;
   }
   console.log("Git is not installed. Installing...");
-  if (process.platform === "win32") {
+  if (isWindows()) {
     throw new Error(
       "Git is not installed. Install it from https://git-scm.com/download/win and make sure it is on your PATH."
     );
   }
-  const cmd =
-    process.platform === "darwin"
-      ? ["brew", "install", "git"]
-      : ["sudo", "apt-get", "install", "-y", "git"];
+  const cmd = isMacOS()
+    ? ["brew", "install", "git"]
+    : ["sudo", "apt-get", "install", "-y", "git"];
   const proc = Bun.spawn(cmd, { stdout: "inherit", stderr: "inherit" });
   const exitCode = await proc.exited;
   if (exitCode !== 0) {