diff --git a/dc-ops b/dc-ops
index 6cf6a04..34ef7c1 100755
--- a/dc-ops
+++ b/dc-ops
@@ -21,6 +21,25 @@ with configfile.open("r") as f:
 loglevel = cfg.get("loglevel", "INFO").upper()
 log.basicConfig(format="%(message)s", level=loglevel)
 
+
+def run_subprocess(command: str, workdir: str) -> bool:
+    """execute subprocess and print output
+
+    Args:
+        cmd (str): command
+        cwd (str): working directory
+
+    Returns:
+        bool: False if subprocess fails
+    """
+    try:
+        subprocess.run(command, cwd=workdir, shell=True, text=True)
+    except subprocess.CalledProcessError:
+        return False
+
+    return True
+
+
 # iterate all stacks
 for stack in cfg["stacks"]:
     # skip disabled stacks
@@ -59,40 +78,20 @@ for stack in cfg["stacks"]:
 
     # run pre-command
     if "pre" in stack:
-        try:
-            subprocess.run(
-                stack["pre"],
-                cwd=stackdir,
-                shell=True,
-                text=True,
-            )
-        except subprocess.CalledProcessError:
+        if not run_subprocess(stack["pre"], stackdir):
             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"])
     for composefile in composefiles:
-        try:
-            subprocess.run(
-                f"docker compose --file {composefile} up --build --detach --remove-orphans",  # noqa
-                cwd=stackdir,
-                shell=True,
-                text=True,
-            )
-        except subprocess.CalledProcessError:
+        if not run_subprocess(
+            f"docker compose --file {composefile} up --build --detach --remove-orphans",  # noqa
+            stackdir,
+        ):
             pass
 
     # run post-command
     if "post" in stack:
-        try:
-            print(
-                subprocess.run(
-                    stack["post"],
-                    cwd=stackdir,
-                    shell=True,
-                    text=True,
-                )
-            )
-        except subprocess.CalledProcessError:
+        if not run_subprocess(stack["post"], stackdir):
             continue