feat: add alerts command for list alert attributes (#256)

Author: satterly

alertaclient/commands/cmd_alerts.py

@@ -0,0 +1,47 @@
+import json
+
+import click
+from tabulate import tabulate
+
+
+@click.command('alerts', short_help='List alert environments, services, groups and tags')
+@click.option('--environments', '-E', is_flag=True, help='List alert environments.')
+@click.option('--services', '-S', is_flag=True, help='List alert services.')
+@click.option('--groups', '-g', is_flag=True, help='List alert groups.')
+@click.option('--tags', '-T', is_flag=True, help='List alert tags.')
+@click.pass_obj
+def cli(obj, environments, services, groups, tags):
+    """List alert environments, services, groups and tags."""
+
+    client = obj['client']
+
+    if environments:
+        if obj['output'] == 'json':
+            r = client.http.get('/environments')
+            click.echo(json.dumps(r['environments'], sort_keys=True, indent=4, ensure_ascii=False))
+        else:
+            headers = {'environment': 'ENVIRONMENT', 'count': 'COUNT', 'severityCounts': 'SEVERITY COUNTS', 'statusCounts': 'STATUS COUNTS'}
+            click.echo(tabulate(client.get_environments(), headers=headers, tablefmt=obj['output']))
+    elif services:
+        if obj['output'] == 'json':
+            r = client.http.get('/services')
+            click.echo(json.dumps(r['services'], sort_keys=True, indent=4, ensure_ascii=False))
+        else:
+            headers = {'environment': 'ENVIRONMENT', 'service': 'SERVICE', 'count': 'COUNT', 'severityCounts': 'SEVERITY COUNTS', 'statusCounts': 'STATUS COUNTS'}
+            click.echo(tabulate(client.get_services(), headers=headers, tablefmt=obj['output']))
+    elif groups:
+        if obj['output'] == 'json':
+            r = client.http.get('/alerts/groups')
+            click.echo(json.dumps(r['groups'], sort_keys=True, indent=4, ensure_ascii=False))
+        else:
+            headers = {'environment': 'ENVIRONMENT', 'group': 'GROUP', 'count': 'COUNT', 'severityCounts': 'SEVERITY COUNTS', 'statusCounts': 'STATUS COUNTS'}
+            click.echo(tabulate(client.get_groups(), headers=headers, tablefmt=obj['output']))
+    elif tags:
+        if obj['output'] == 'json':
+            r = client.http.get('/alerts/tags')
+            click.echo(json.dumps(r['tags'], sort_keys=True, indent=4, ensure_ascii=False))
+        else:
+            headers = {'environment': 'ENVIRONMENT', 'tag': 'TAG', 'count': 'COUNT', 'severityCounts': 'SEVERITY COUNTS', 'statusCounts': 'STATUS COUNTS'}
+            click.echo(tabulate(client.get_tags(), headers=headers, tablefmt=obj['output']))
+    else:
+        raise click.UsageError('Must choose an alert attribute to list.')