sheetsync: Change how options are specified to allow multiple backends / syncs

docker-compose.jsonnet

@@ -434,16 +434,18 @@
       // Args for the sheetsync
       command: [
         "--backdoor-port", std.toString($.backdoor_port),
-        "--allocate-ids",
         $.db_connect,
-        "--playlist-worksheet", $.playlist_worksheet,
+        std.manifestJson({
-        "/etc/wubloader-creds.json",
+          type: "sheets",
-        $.edit_url,
+          creds: "/etc/wubloader-creds.json",
-        $.bustime_start,
+          sheet_id: $.sheet_id,
-        $.sheet_id,
+          worksheets: $.worksheets,
-      ]
+          allocate_ids: true,
-      + $.worksheets
+          edit_url: $.edit_url,
-      + (if $.archive_worksheet != null then ["--archive-worksheet", $.archive_worksheet] else []),
+          bustime_start: $.bustime_start,
+          playlist_worksheet: $.playlist_worksheet,
+        }),
+      ],
       volumes: [
         // Mount the creds file into /etc
         "%s:/etc/wubloader-creds.json" % $.sheetsync_creds_file,

sheetsync/sheetsync/main.py

@@ -18,6 +18,7 @@ import common.dateutil
 from common.database import DBManager, query, get_column_placeholder
 
 from .sheets import SheetsClient, SheetsMiddleware
+from .streamlog import StreamLogClient, StreamLogMiddleware
 
 sheets_synced = prom.Counter(
 	'sheets_synced',
@@ -331,32 +332,31 @@ class PlaylistSync:
 	"list of key=value pairs, or a URI like:\n"
 	"\tpostgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE"
 )
-@argh.arg('sheets-creds-file', help=
+@argh.arg('sync-configs',
-	"sheets_creds_file should be a json file containing keys "
+	metavar="SYNC-CONFIG",
-	"'client_id', 'client_secret' and 'refresh_token'."
+	nargs="+",
+	type=json.loads,
+	help="\n".join([
+		'A JSON object describing a sync operation to perform. One of:',
+		'  type: "sheets"',
+		'  creds: path to credentials JSON file containing "client_id", "client_secret" and "refresh_token"',
+		'  sheet_id: The id of the Google Sheet to use',
+		'  worksheets: List of worksheets within that sheet to sync',
+		'  edit_url: a format string for edit links, with {} as a placeholder for id',
+		'  bustime_start: Timestamp string at which bustime is 00:00',
+		'  allocate_ids: Boolean, optional. When true, will give rows without ids an id.',
+		'    Only one sheetsync acting on the same sheet should have this enabled.',
+		'  reverse_sync: Boolean, optional. When true, enables an alternate mode',
+		'    where all data is synced from the database to the sheet',
+		'  playlist_worksheet: An optional additional worksheet name that holds playlist tag definitions',
+		'or:',
+		'  type: streamlog',
+		'  creds: path to a file containing the auth key',
+		'  url: The URL of the streamlog server',
+		'  event_name: The name of the streamlog event to sync',
+	]),
 )
-@argh.arg('edit-url', help=
+def main(dbconnect, sync_configs, metrics_port=8005, backdoor_port=0):
-	'edit_url should be a format string for edit links, with {} as a placeholder for id. '
-	'eg. "https://myeditor.example.com/edit/{}" will produce edit urls like '
-	'"https://myeditor.example.com/edit/da6cf4df-4871-4a9a-a660-0b1e1a6a9c10".'
-)
-@argh.arg('bustime_start', type=common.dateutil.parse, help=
-	"bustime_start is the timestamp which is bustime 00:00."
-)
-@argh.arg('worksheet-names', nargs='+', help=
-	"The names of the individual worksheets within the sheet to operate on."
-)
-@argh.arg('--allocate-ids', help=
-	"--allocate-ids means that it will give rows without ids an id. "
-	"Only one sheet sync should have --allocate-ids on for a given sheet at once!"
-)
-@argh.arg('--playlist-worksheet', help=
-	"An optional additional worksheet name that holds playlist tag definitions",
-)
-@argh.arg('--reverse-sync', help=
-	"Enables an alternate mode where all data is synced from the database to the sheet",
-)
-def main(dbconnect, sheets_creds_file, edit_url, bustime_start, sheet_id, worksheet_names, metrics_port=8005, backdoor_port=0, allocate_ids=False, playlist_worksheet=None, reverse_sync=False):
 	"""
 	Sheet sync constantly scans a Google Sheets sheet and a database, copying inputs from the sheet
 	to the DB and outputs from the DB to the sheet.
@@ -391,20 +391,41 @@ def main(dbconnect, sheets_creds_file, edit_url, bustime_start, sheet_id, worksh
 			dbmanager.put_conn(conn)
 			break
 
-	sheets_creds = json.load(open(sheets_creds_file))
+	workers = []
 
-	sheets_client = SheetsClient(
+	for config in sync_configs:
-		client_id=sheets_creds['client_id'],
+		if config["type"] == "sheets":
-		client_secret=sheets_creds['client_secret'],
+			creds = json.load(open(config["creds"]))
-		refresh_token=sheets_creds['refresh_token'],
+			client = SheetsClient(
+				client_id=creds['client_id'],
+				client_secret=creds['client_secret'],
+				refresh_token=creds['refresh_token'],
+			)
+			middleware = SheetsMiddleware(
+				client,
+				config["sheet_id"],
+				config["worksheets"],
+				common.dateutil.parse(config["bustime_start"]),
+				config["edit_url"],
+				config["allocate_ids"],
+			)
+			if "playlist_worksheet" in config:
+				workers.append(
+					PlaylistSync(stop, dbmanager, client, config["sheet_id"], config["playlist_worksheet"])
+				)
+		elif config["type"] == "streamlog":
+			auth_token = open(config["creds"]).read().strip()
+			client = StreamLogClient(
+				config["url"],
+				config["event_name"],
+				auth_token,
+			)
+			middleware = StreamLogMiddleware(client)
+		else:
+			raise ValueError("Unknown type {!r}".format(config["type"]))
+		workers.append(
+			SheetSync(middleware, stop, dbmanager, config["reverse_sync"]),
 		)
-	sheets_middleware = SheetsMiddleware(sheets_client, sheet_id, worksheet_names, bustime_start, edit_url, allocate_ids)
-
-	workers = [
-		SheetSync(sheets_middleware, stop, dbmanager, reverse_sync),
-	]
-	if playlist_worksheet:
-		workers.append(PlaylistSync(stop, dbmanager, sheets_client, sheet_id, playlist_worksheet))
 
 	jobs = [gevent.spawn(worker.run) for worker in workers]
 	# Block until any one exits