add filter for month to report

src/gitlabtime/cli.py

@@ -14,8 +14,12 @@ import click
     help='Access token',
     prompt='Access token',
 )
-def cli(url, token):
-    entries = fetch(url, token)
+@click.option(
+    '--month',
+    help='Filter for month (yyyy-mm)',
+)
+def cli(url, token, month):
+    entries = fetch(url, token, month)
     report(entries)
 
 

src/gitlabtime/fetch.py

@@ -23,7 +23,7 @@ def parse_time(time_str):
     return float(value_str) * unit
 
 
-def fetch(url, token):
+def fetch(url, token, month):
     """Yield all relevant time tracking entries, in no particular order.
     """
 
@@ -59,6 +59,9 @@ def fetch(url, token):
                 if _ != sep:
                     continue
 
+                if month and not date.startswith(month):
+                    continue
+
                 seconds = parse_action(action)
                 entries[note.author['username'], date] += seconds