feat: add configurable log level

config.yml.example

@@ -1,3 +1,4 @@
+loglevel: "INFO" # optional
 stacks:
   - dir: /path/to/first-repo
   - dir: /path/to/second-repo

dc-ops

@@ -18,7 +18,8 @@ with configfile.open("r") as f:
     cfg = yaml.safe_load(f.read())
 
 # init logging
-log.basicConfig(format="%(message)s", level=log.INFO)
+loglevel = cfg.get("loglevel", "INFO").upper()
+log.basicConfig(format="%(message)s", level=loglevel)
 
 # iterate all stacks
 for stack in cfg["stacks"]: