Merge pull request #1 from akvadrako/master

enable logging and document how to set level

Author: mvanholsteijn

README.md

@@ -45,3 +45,10 @@ aws cloudformation deploy \
 	--parameter-overrides LogRetentionInDays=30
 ```
 This will install the log minder in your AWS account and run every hour.
+
+## verbose
+
+```sh
+export LOG_LEVEL=INFO
+cwlog-minder ...
+```

src/aws_cloudwatch_log_minder/__main__.py

@@ -9,6 +9,7 @@
 @click.option('--dry-run', is_flag=True, default=False,
               help='do not change anything, just show what is going to happen')
 def main(ctx, dry_run):
+    logging.basicConfig(level=os.getenv("LOG_LEVEL", "WARN"))
     ctx.obj = ctx.params
 
 @main.command(name='set-log-retention')
@@ -25,5 +26,4 @@ def delete_empty_log_streams_command(ctx, log_group_name_prefix, purge_non_empty
     delete_empty_log_streams(log_group_name_prefix, purge_non_empty, ctx.obj['dry_run'])
 
 if __name__ == '__main__':
-    logging.basicConfig(level=os.getenv("LOG_LEVEL", "INFO"))
     main()

src/aws_cloudwatch_log_minder/delete_empty_log_streams.py

@@ -99,6 +99,7 @@ def delete_empty_log_streams(log_group_name_prefix: str = None, purge_non_empty:
     if log_group_name_prefix:
         kwargs["logGroupNamePrefix"] = log_group_name_prefix
 
+    log.info("finding log groups with prefix %r", log_group_name_prefix)
     for response in cw_logs.get_paginator("describe_log_groups").paginate(**kwargs):
         for group in response["logGroups"]:
             _delete_empty_log_streams(group, purge_non_empty, dry_run)