re #2: add filters for start and end date, fallback to month

src/gitlabtime/cli.py

+from calendar import monthrange
+from datetime import date
 from gitlabtime.fetch import fetch
 from gitlabtime.report import report
 from gitlabtime.report import report_csv
@@ -19,6 +21,14 @@ import click
     '--month',
     help='Filter for month (yyyy-mm)',
 )
+@click.option(
+    '--start',
+    help='Filter for start date (yyyy-mm-dd)',
+)
+@click.option(
+    '--end',
+    help='Filter for end date (yyyy-mm-dd)',
+)
 @click.option(
     '--project',
     help='Filter for project name',
@@ -31,9 +41,18 @@ import click
     '--csv',
     help='path to CSV output file',
 )
-def cli(url, token, month, project, username, csv):
+def cli(url, token, month, start, end, project, username, csv):
+    if month:
+        first = month + '-01'
+        if not start:
+            start = first
+        if not end:
+            first = date.fromisoformat(first)
+            _, last = monthrange(first.year, first.month)
+            end = '{}-{}'.format(month, last)
     filter = dict(
-        month=month,
+        start=start,
+        end=end,
         project=project,
         username=username,
     )

src/gitlabtime/fetch.py

@@ -39,7 +39,10 @@ def fetch_project(project, filter):
         for author, date, seconds in fetch_times(item):
             if filter['username'] not in (author, None):
                 continue
-            if not date.startswith(filter['month'] or ''):
+
+            if (filter['start'] or '') > date:
+                continue
+            if (filter['end'] or '9999-99-99') < date:
                 continue
 
             entries[author, date] += seconds