From 745c05b35550883f3dd3509746a5d297878081e3 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Mon, 21 Feb 2022 17:17:34 +0100
Subject: [PATCH 01/10] Feat: Kill child processes recursively

---
 README.md                     |   2 +
 package.json                  |   4 +-
 src/commands/start.command.ts | 115 ++++++++++++++++++++++++++++------
 src/ecosystem.config.ts       |  12 ----
 src/index.ts                  |   7 +--
 tsconfig.json                 |   1 +
 6 files changed, 105 insertions(+), 36 deletions(-)
 delete mode 100644 src/ecosystem.config.ts

diff --git a/README.md b/README.md
index 73332c3..9e2b3b6 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,3 @@
 # @comet/dev-process-manager
+
+## Usage
diff --git a/package.json b/package.json
index 3e8bf76..ec94c79 100644
--- a/package.json
+++ b/package.json
@@ -28,9 +28,9 @@
   },
   "devDependencies": {
     "@comet/eslint-config": "^0.0.1-canary.8102.6588",
-    "typescript": "^4.5.5",
+    "eslint": "^7.0.0",
     "ts-loader": "^8.0.0",
-    "eslint": "^7.0.0"
+    "typescript": "^4.5.5"
   },
   "engines": {
     "node": "14"
diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index 8e69685..a757626 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -2,7 +2,8 @@ import { spawn, ChildProcess } from "child_process";
 import { Socket, createServer, createConnection } from "net";
 import { AppDefinition } from "../app-definition.type";
 
-export const start = async (apps: AppDefinition[]) => {
+export const start = async (pmConfigFilePath: string) => {
+  const { apps }: { apps: AppDefinition[] } = await import(`${process.cwd()}/${pmConfigFilePath}`);
   const processes: { [key: string]: ChildProcess } = {};
   const logSockets: { socket: Socket, name: string | null; }[] = [];
   let shuttingDown = false;
@@ -14,7 +15,7 @@ export const start = async (apps: AppDefinition[]) => {
       process.stdout.write(data);
       logSockets.forEach(s => {
         if (!s.name || s.name == app.name) {
-          s.socket.write(data);
+          s.socket.write(`${s.name}: ${data}`);
         }
       });
     });
@@ -22,7 +23,7 @@ export const start = async (apps: AppDefinition[]) => {
       process.stderr.write(data);
       logSockets.forEach(s => {
         if (!s.name || s.name == app.name) {
-          s.socket.write(data);
+          s.socket.write(`${s.name}: ${data}`);
         }
       });
     });
@@ -97,13 +98,7 @@ export const start = async (apps: AppDefinition[]) => {
         s.write(JSON.stringify(response));
         s.end();
       } else if (cmd == "shutdown") {
-        console.log("shutting down");
-        shuttingDown = true;
-        Object.values(processes).forEach(p => {
-          if (!p.killed) p.kill("SIGINT");
-        })
-        server.close();
-        process.exit();
+        shutdown(s);
       } else {
         console.error("Unknown command", cmd);
       }
@@ -115,15 +110,99 @@ export const start = async (apps: AppDefinition[]) => {
   });
 
   process.on("SIGINT", function () {
-    console.log("shutting down")
-    server.close();
+    shutdown();
+  });
+
+  process.on("SIGTERM", function () {
+    shutdown();
+  });
+
+  const events = ["beforeExit", "disconnected", "message", "rejectionHandled", "uncaughtException", "exit", "SIGABRT", "SIGHUP", "SIGPWR", "SIGQUIT"];
+
+  events.forEach((eventName) => {
+    process.on(eventName, (...args) => {
+      console.log('Unhandled error event ' + eventName + ' was called with args : ' + args.join(','));
+      shutdown();
+    });
+  });
+
+
+  const shutdown = async (s?: Socket) => {
+    console.log("shutting down");
     shuttingDown = true;
-    for (const name in processes) {
-      const p = processes[name];
-      if (!p.killed) {
-        console.log("killing " + name);
-        p.kill("SIGINT");
+    await Promise.all(Object.values(processes).map(async p => {
+      if (p.pid) {
+        const list: { [key: string]: string[] } = await getChildProcesses(p.pid.toString(), { [p.pid]: [] }, { [p.pid]: 1 });
+        killProcesses(list);
       }
+    }));
+    server.close();
+    s?.destroy();
+    process.exit();
+  }
+
+  const killProcesses = (tree: { [key: string]: string[] }) => {
+    const killed: { [key: string]: number } = {};
+    Object.keys(tree).map((pid) => {
+      tree[pid].map((childPid) => {
+        if (!killed[childPid]) {
+          killPid(childPid);
+          killed[childPid] = 1;
+        }
+        if (!killed[pid]) {
+          killPid(pid);
+          killed[pid] = 1;
+        }
+      })
+    })
+    return;
+  }
+
+  const killPid = (pid: string) => {
+    try {
+      process.kill(parseInt(pid, 10), "SIGINT");
+    } catch (err) {
+      console.error(err);
     }
-  });
+  }
+
+  const getChildProcesses = async (parentPid: string, tree: { [key: string]: string[] }, pidsToProcess: { [key: string]: number }): Promise<{ [key: string]: string[] }> => {
+    return new Promise((resolve, reject) => {
+      const ps = spawn('pgrep', ['-P', parentPid]);
+      let allData = "";
+
+      const onClose = (code: unknown) => {
+        delete pidsToProcess[parentPid];
+        if (code != 0) {
+          if (Object.keys(pidsToProcess).length === 0) {
+            resolve(tree);
+          }
+          return tree;
+        }
+
+        const pids = allData.match(/\d+/g) || [];
+        if (pids.length === 0) {
+          return resolve(tree);
+        }
+        pids.forEach(function (pid) {
+          tree[parentPid].push(pid);
+          tree[pid] = [];
+          pidsToProcess[pid] = 1;
+          resolve(getChildProcesses(pid, tree, pidsToProcess));
+        })
+      };
+
+      ps.on('error', function (err) {
+        console.error(err);
+        reject(err);
+      });
+
+      ps.stdout.on('data', function (data) {
+        data = data.toString('ascii');
+        allData += data;
+      })
+
+      ps.on('close', onClose);
+    })
+  }
 }
diff --git a/src/ecosystem.config.ts b/src/ecosystem.config.ts
deleted file mode 100644
index 0fb1fbb..0000000
--- a/src/ecosystem.config.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-export default {
-  apps: [
-    {
-      name: "sleep60",
-      script: "echo sleep60 && sleep 60",
-    },
-    {
-      name: "sleep3",
-      script: "while true; do echo sleep3 && sleep 3; done",
-    },
-  ]
-};
diff --git a/src/index.ts b/src/index.ts
index f1db71c..6044509 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,11 +1,10 @@
 import { Command } from 'commander';
 import { start, shutdown, status, logs, restart } from "./commands";
-import eco from "./ecosystem.config";
 
 const program = new Command();
-program.command("start")
-  .action(() => {
-    start(eco.apps);
+program.command("start <pmConfigFilePath>")
+  .action((pmConfigFilePath) => {
+    start(pmConfigFilePath);
   });
 
 program.command("logs [name]")
diff --git a/tsconfig.json b/tsconfig.json
index 51f7eb3..b2e311d 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -16,6 +16,7 @@
         "strict": true,
         "strictPropertyInitialization": false,
         "strictNullChecks": true,
+        "resolveJsonModule": true,
     },
     "include": [
         "src"

From 590a48cc047ddf48e99bf50dfbffc02dc3328141 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Mon, 21 Feb 2022 17:24:15 +0100
Subject: [PATCH 02/10] Feat: Handle not deleted .pm.sock

---
 src/commands/start.command.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index a757626..7285b44 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -1,6 +1,7 @@
 import { spawn, ChildProcess } from "child_process";
 import { Socket, createServer, createConnection } from "net";
 import { AppDefinition } from "../app-definition.type";
+import { unlinkSync } from "fs";
 
 export const start = async (pmConfigFilePath: string) => {
   const { apps }: { apps: AppDefinition[] } = await import(`${process.cwd()}/${pmConfigFilePath}`);
@@ -41,6 +42,10 @@ export const start = async (pmConfigFilePath: string) => {
     processes[app.name] = p;
   }
 
+  try {
+    unlinkSync("./.pm.sock");
+  } catch (e) { }
+
   const server = createServer();
   server.listen(".pm.sock");
   server.on('connection', (s) => {

From c11eaaefa6648172a5dbf8b6ce7100c8c4980893 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Tue, 22 Feb 2022 09:13:00 +0100
Subject: [PATCH 03/10] Docs: Readme with installation and usage

---
 README.md | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/README.md b/README.md
index 9e2b3b6..59bcc32 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,77 @@
 # @comet/dev-process-manager
 
+## Installation
+
+```console
+$ npm install
+$ npm run build
+```
+
 ## Usage
+
+Add `pm.config.js` file to the project root.
+This file defines all available apps, which should be started by dev-process-manager.
+
+### pm.config.js
+
+```javascript
+module.exports = {
+    apps: [
+        {
+             name: "api",
+             script: "npm --prefix api install && dotenv -- wait-on -l tcp:$POSTGRESQL_PORT && npm run --prefix api fixtures:dev && npm --prefix api run start:dev",
+        },
+        ...
+    ],
+};
+
+```
+
+Update dev script in package.json
+
+### package.json
+
+```json
+  ...
+  "dev": "dotenv -- node <path-to-dev-process-manager>/lib/index.js start pm.config.js",
+  ...
+```
+
+## Commands
+
+### Start
+Either use the package.json script and run `npm run dev`
+or start with:
+```console
+$ node <path-to-dev-process-manager>/lib/index.js start <path-to-pm.config.js>
+```
+
+### Shutdown
+
+Shutdown all running apps
+```console
+$ node <path-to-dev-process-manager>/lib/index.js shutdown
+```
+
+### Restart
+
+Restart a previously started apps
+
+```console
+$ node <path-to-dev-process-manager>/lib/index.js restart <app-name>
+```
+
+
+### Status
+Lists running apps
+
+```console
+$ node <path-to-dev-process-manager>/lib/index.js status
+```
+
+### Logs
+Prints logs of either a specific app or all running apps in real time.
+
+```console
+$ node <path-to-dev-process-manager>/lib/index.js logs [app-name]
+```

From f36de4d88dd52852e1ebb920c6233ad567735f16 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Fri, 1 Apr 2022 12:39:47 +0200
Subject: [PATCH 04/10] Feat: Throw error instead of removing the .pm.sock file
 at start

---
 src/commands/start.command.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index 7285b44..e462d11 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -1,7 +1,7 @@
 import { spawn, ChildProcess } from "child_process";
 import { Socket, createServer, createConnection } from "net";
 import { AppDefinition } from "../app-definition.type";
-import { unlinkSync } from "fs";
+import { existsSync } from "fs";
 
 export const start = async (pmConfigFilePath: string) => {
   const { apps }: { apps: AppDefinition[] } = await import(`${process.cwd()}/${pmConfigFilePath}`);
@@ -43,7 +43,10 @@ export const start = async (pmConfigFilePath: string) => {
   }
 
   try {
-    unlinkSync("./.pm.sock");
+    if (existsSync("./.pm.sock")) {
+      console.log("Could not start dev-pm server. A '.pm.sock' file already exists. \nThere are 2 possible reasons for this:\nA: Another dev-pm instance is already running. \nB: dev-pm crashed and left the file behind. In this case please remove the file manually.");
+      return;
+    }
   } catch (e) { }
 
   const server = createServer();

From a9f8b6fdc3664b41e12895d43eaf97ed5bd54cfa Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Fri, 1 Apr 2022 13:09:32 +0200
Subject: [PATCH 05/10] Docs: Use dev-pm.config.js in readme

---
 README.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 59bcc32..0c9e29d 100644
--- a/README.md
+++ b/README.md
@@ -9,10 +9,10 @@ $ npm run build
 
 ## Usage
 
-Add `pm.config.js` file to the project root.
+Add `dev-pm.config.js` file to the project root.
 This file defines all available apps, which should be started by dev-process-manager.
 
-### pm.config.js
+### dev-pm.config.js
 
 ```javascript
 module.exports = {
@@ -33,7 +33,7 @@ Update dev script in package.json
 
 ```json
   ...
-  "dev": "dotenv -- node <path-to-dev-process-manager>/lib/index.js start pm.config.js",
+  "dev": "dotenv -- node <path-to-dev-process-manager>/lib/index.js start dev-pm.config.js",
   ...
 ```
 
@@ -43,7 +43,7 @@ Update dev script in package.json
 Either use the package.json script and run `npm run dev`
 or start with:
 ```console
-$ node <path-to-dev-process-manager>/lib/index.js start <path-to-pm.config.js>
+$ node <path-to-dev-process-manager>/lib/index.js start <path-to-dev-pm.config.js>
 ```
 
 ### Shutdown

From 11055a0abffeb2f6f7deb66af7827fbcf4dda2cd Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Fri, 1 Apr 2022 13:28:27 +0200
Subject: [PATCH 06/10] Docs: Simplify examples

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 0c9e29d..955ba6d 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ module.exports = {
     apps: [
         {
              name: "api",
-             script: "npm --prefix api install && dotenv -- wait-on -l tcp:$POSTGRESQL_PORT && npm run --prefix api fixtures:dev && npm --prefix api run start:dev",
+             script: "npm run start",
         },
         ...
     ],
@@ -33,14 +33,14 @@ Update dev script in package.json
 
 ```json
   ...
-  "dev": "dotenv -- node <path-to-dev-process-manager>/lib/index.js start dev-pm.config.js",
+  "start": "node <path-to-dev-process-manager>/lib/index.js start dev-pm.config.js",
   ...
 ```
 
 ## Commands
 
 ### Start
-Either use the package.json script and run `npm run dev`
+Either use the package.json script and run `npm run start`
 or start with:
 ```console
 $ node <path-to-dev-process-manager>/lib/index.js start <path-to-dev-pm.config.js>

From f10814d655875e7d370b18d5b4e8a95f61e32d20 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Fri, 8 Apr 2022 13:11:23 +0200
Subject: [PATCH 07/10] Refactor: Remove empty try-catch

---
 src/commands/start.command.ts | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index e462d11..72740b4 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -42,12 +42,10 @@ export const start = async (pmConfigFilePath: string) => {
     processes[app.name] = p;
   }
 
-  try {
-    if (existsSync("./.pm.sock")) {
-      console.log("Could not start dev-pm server. A '.pm.sock' file already exists. \nThere are 2 possible reasons for this:\nA: Another dev-pm instance is already running. \nB: dev-pm crashed and left the file behind. In this case please remove the file manually.");
-      return;
-    }
-  } catch (e) { }
+  if (existsSync("./.pm.sock")) {
+    console.log("Could not start dev-pm server. A '.pm.sock' file already exists. \nThere are 2 possible reasons for this:\nA: Another dev-pm instance is already running. \nB: dev-pm crashed and left the file behind. In this case please remove the file manually.");
+    return;
+  }
 
   const server = createServer();
   server.listen(".pm.sock");

From 02516a5685fac6c245219c3d9bb8a87cb0da01cc Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Thu, 14 Apr 2022 16:37:13 +0200
Subject: [PATCH 08/10] Refactor: Simplify kill processes

---
 src/commands/start.command.ts | 75 +++--------------------------------
 1 file changed, 5 insertions(+), 70 deletions(-)

diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index 72740b4..bf8114a 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -11,7 +11,7 @@ export const start = async (pmConfigFilePath: string) => {
 
   function startProcess(app: AppDefinition) {
     console.log("starting " + app.script);
-    const p = spawn("bash", ["-c", app.script]);
+    const p = spawn("bash", ["-c", app.script], { detached: true });
     p.stdout.on('data', data => {
       process.stdout.write(data);
       logSockets.forEach(s => {
@@ -30,6 +30,7 @@ export const start = async (pmConfigFilePath: string) => {
     });
     p.on('close', code => {
       if (!shuttingDown) {
+        console.log('DEBUG code:', code);
         console.error("process stopped", app.name, ", restarting");
         startProcess(app);
       }
@@ -100,7 +101,7 @@ export const start = async (pmConfigFilePath: string) => {
             running: !p.killed
           }
         });
-        console.log("sending status reponse", response);
+        console.log("sending status response", response);
         s.write(JSON.stringify(response));
         s.end();
       } else if (cmd == "shutdown") {
@@ -123,7 +124,7 @@ export const start = async (pmConfigFilePath: string) => {
     shutdown();
   });
 
-  const events = ["beforeExit", "disconnected", "message", "rejectionHandled", "uncaughtException", "exit", "SIGABRT", "SIGHUP", "SIGPWR", "SIGQUIT"];
+  const events = ["beforeExit", "disconnected", "message", "rejectionHandled", "uncaughtException", "SIGABRT", "SIGHUP", "SIGPWR", "SIGQUIT"];
 
   events.forEach((eventName) => {
     process.on(eventName, (...args) => {
@@ -138,77 +139,11 @@ export const start = async (pmConfigFilePath: string) => {
     shuttingDown = true;
     await Promise.all(Object.values(processes).map(async p => {
       if (p.pid) {
-        const list: { [key: string]: string[] } = await getChildProcesses(p.pid.toString(), { [p.pid]: [] }, { [p.pid]: 1 });
-        killProcesses(list);
+        process.kill(-p.pid);
       }
     }));
     server.close();
     s?.destroy();
     process.exit();
   }
-
-  const killProcesses = (tree: { [key: string]: string[] }) => {
-    const killed: { [key: string]: number } = {};
-    Object.keys(tree).map((pid) => {
-      tree[pid].map((childPid) => {
-        if (!killed[childPid]) {
-          killPid(childPid);
-          killed[childPid] = 1;
-        }
-        if (!killed[pid]) {
-          killPid(pid);
-          killed[pid] = 1;
-        }
-      })
-    })
-    return;
-  }
-
-  const killPid = (pid: string) => {
-    try {
-      process.kill(parseInt(pid, 10), "SIGINT");
-    } catch (err) {
-      console.error(err);
-    }
-  }
-
-  const getChildProcesses = async (parentPid: string, tree: { [key: string]: string[] }, pidsToProcess: { [key: string]: number }): Promise<{ [key: string]: string[] }> => {
-    return new Promise((resolve, reject) => {
-      const ps = spawn('pgrep', ['-P', parentPid]);
-      let allData = "";
-
-      const onClose = (code: unknown) => {
-        delete pidsToProcess[parentPid];
-        if (code != 0) {
-          if (Object.keys(pidsToProcess).length === 0) {
-            resolve(tree);
-          }
-          return tree;
-        }
-
-        const pids = allData.match(/\d+/g) || [];
-        if (pids.length === 0) {
-          return resolve(tree);
-        }
-        pids.forEach(function (pid) {
-          tree[parentPid].push(pid);
-          tree[pid] = [];
-          pidsToProcess[pid] = 1;
-          resolve(getChildProcesses(pid, tree, pidsToProcess));
-        })
-      };
-
-      ps.on('error', function (err) {
-        console.error(err);
-        reject(err);
-      });
-
-      ps.stdout.on('data', function (data) {
-        data = data.toString('ascii');
-        allData += data;
-      })
-
-      ps.on('close', onClose);
-    })
-  }
 }

From 13a737ee3d1115784446814df3dc065d696b76a0 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Thu, 14 Apr 2022 16:47:43 +0200
Subject: [PATCH 09/10] Chore: Remove not needed console.log

---
 src/commands/start.command.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index bf8114a..5e21c21 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -28,9 +28,8 @@ export const start = async (pmConfigFilePath: string) => {
         }
       });
     });
-    p.on('close', code => {
+    p.on('close', () => {
       if (!shuttingDown) {
-        console.log('DEBUG code:', code);
         console.error("process stopped", app.name, ", restarting");
         startProcess(app);
       }

From feae390d52b94fd64cb4f42f7ec08f3133d27a93 Mon Sep 17 00:00:00 2001
From: Fabian Hoffmann <fabian.hoffmann@vivid-planet.com>
Date: Wed, 20 Apr 2022 09:37:11 +0200
Subject: [PATCH 10/10] Feat: Make path to config file optional

---
 README.md                     | 7 +++++--
 src/commands/start.command.ts | 3 ++-
 src/index.ts                  | 2 +-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 955ba6d..8d01329 100644
--- a/README.md
+++ b/README.md
@@ -29,21 +29,24 @@ module.exports = {
 
 Update dev script in package.json
 
+
 ### package.json
 
 ```json
   ...
-  "start": "node <path-to-dev-process-manager>/lib/index.js start dev-pm.config.js",
+  "start": "node <path-to-dev-process-manager>/lib/index.js start",
   ...
 ```
 
+The path to the config file can be specified in an optional parameter. "dev-pm.config.js" in the root directory is used by default.
+
 ## Commands
 
 ### Start
 Either use the package.json script and run `npm run start`
 or start with:
 ```console
-$ node <path-to-dev-process-manager>/lib/index.js start <path-to-dev-pm.config.js>
+$ node <path-to-dev-process-manager>/lib/index.js start [path-to-dev-pm.config.js]
 ```
 
 ### Shutdown
diff --git a/src/commands/start.command.ts b/src/commands/start.command.ts
index 5e21c21..9c9842f 100644
--- a/src/commands/start.command.ts
+++ b/src/commands/start.command.ts
@@ -3,7 +3,8 @@ import { Socket, createServer, createConnection } from "net";
 import { AppDefinition } from "../app-definition.type";
 import { existsSync } from "fs";
 
-export const start = async (pmConfigFilePath: string) => {
+export const start = async (pmConfigFilePathOverride?: string) => {
+  const pmConfigFilePath = pmConfigFilePathOverride ? pmConfigFilePathOverride : "dev-pm.config.js"
   const { apps }: { apps: AppDefinition[] } = await import(`${process.cwd()}/${pmConfigFilePath}`);
   const processes: { [key: string]: ChildProcess } = {};
   const logSockets: { socket: Socket, name: string | null; }[] = [];
diff --git a/src/index.ts b/src/index.ts
index 6044509..7a7ed0a 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,7 +2,7 @@ import { Command } from 'commander';
 import { start, shutdown, status, logs, restart } from "./commands";
 
 const program = new Command();
-program.command("start <pmConfigFilePath>")
+program.command("start [pmConfigFilePath]")
   .action((pmConfigFilePath) => {
     start(pmConfigFilePath);
   });