feat: add pre and post commands support

- add pre-command execution before running docker compose
- add post-command execution after running docker compose
- update config.yml.example to include pre and post commands

🤖

config.yml.example

@@ -9,4 +9,7 @@ stacks:
       - subdirA/docker-compose.yml
       - subdirB/docker-compose.yml
   - dir: /path/to/fourth-repo
+    pre: "make"
+    post: "make clean"
+  - dir: /path/to/fifth-repo
     enabled: false

dc-ops

@@ -57,6 +57,18 @@ for stack in cfg["stacks"]:
         log.error(str(e))
         continue
 
+    # run pre-command
+    if "pre" in stack:
+        try:
+            subprocess.run(
+                stack["pre"],
+                cwd=stackdir,
+                shell=True,
+                text=True,
+            )
+        except subprocess.CalledProcessError:
+            continue
+
     # run `docker compose` for all compose-files
     # (or just for the directory if no compose-file defined)
     composefiles = stack.get("compose-files", ["docker-compose.yml"])
@@ -70,3 +82,17 @@ for stack in cfg["stacks"]:
             )
         except subprocess.CalledProcessError:
             pass
+
+    # run post-command
+    if "post" in stack:
+        try:
+            print(
+                subprocess.run(
+                    stack["post"],
+                    cwd=stackdir,
+                    shell=True,
+                    text=True,
+                )
+            )
+        except subprocess.CalledProcessError:
+            continue