Improve logging

Everything that gets logged now has a log level associated with it.

The log level can be set with the new `-l` or `--log-level` arguments.

The defaul log level is `debug` for now. There aren't many things that get
logged but if the logs get spammed in the future it can be set down to `info`.

src/invidious/jobs/bypass_captcha_job.cr

@@ -125,7 +125,7 @@ class Invidious::Jobs::BypassCaptchaJob < Invidious::Jobs::BaseJob
           end
         end
       rescue ex
-        logger.puts("Exception: #{ex.message}")
+        logger.error("BypassCaptchaJob: #{ex.message}")
       ensure
         sleep 1.minute
         Fiber.yield

src/invidious/jobs/refresh_channels_job.cr

@@ -14,6 +14,7 @@ class Invidious::Jobs::RefreshChannelsJob < Invidious::Jobs::BaseJob
     backoff = 1.seconds
 
     loop do
+      logger.debug("RefreshChannelsJob: Refreshing all channels")
       db.query("SELECT id FROM channels ORDER BY updated") do |rs|
         rs.each do
           id = rs.read(String)
@@ -27,17 +28,18 @@ class Invidious::Jobs::RefreshChannelsJob < Invidious::Jobs::BaseJob
           active_threads += 1
           spawn do
             begin
+              logger.trace("RefreshChannelsJob: Fetching channel #{id}")
               channel = fetch_channel(id, db, config.full_refresh)
 
               lim_threads = max_threads
               db.exec("UPDATE channels SET updated = $1, author = $2, deleted = false WHERE id = $3", Time.utc, channel.author, id)
             rescue ex
-              logger.puts("#{id} : #{ex.message}")
+              logger.error("RefreshChannelsJob: #{id} : #{ex.message}")
               if ex.message == "Deleted or invalid channel"
                 db.exec("UPDATE channels SET updated = $1, deleted = true WHERE id = $2", Time.utc, id)
               else
                 lim_threads = 1
-                logger.puts("#{id} : backing off for #{backoff}s")
+                logger.error("RefreshChannelsJob: #{id} : backing off for #{backoff}s")
                 sleep backoff
                 if backoff < 1.days
                   backoff += backoff

src/invidious/jobs/refresh_feeds_job.cr

@@ -30,14 +30,14 @@ class Invidious::Jobs::RefreshFeedsJob < Invidious::Jobs::BaseJob
               column_array = get_column_array(db, view_name)
               ChannelVideo.type_array.each_with_index do |name, i|
                 if name != column_array[i]?
-                  logger.puts("DROP MATERIALIZED VIEW #{view_name}")
+                  logger.info("RefreshFeedsJob: DROP MATERIALIZED VIEW #{view_name}")
                   db.exec("DROP MATERIALIZED VIEW #{view_name}")
                   raise "view does not exist"
                 end
               end
 
               if !db.query_one("SELECT pg_get_viewdef('#{view_name}')", as: String).includes? "WHERE ((cv.ucid = ANY (u.subscriptions))"
-                logger.puts("Materialized view #{view_name} is out-of-date, recreating...")
+                logger.info("RefreshFeedsJob: Materialized view #{view_name} is out-of-date, recreating...")
                 db.exec("DROP MATERIALIZED VIEW #{view_name}")
               end
 
@@ -49,18 +49,18 @@ class Invidious::Jobs::RefreshFeedsJob < Invidious::Jobs::BaseJob
                 legacy_view_name = "subscriptions_#{sha256(email)[0..7]}"
 
                 db.exec("SELECT * FROM #{legacy_view_name} LIMIT 0")
-                logger.puts("RENAME MATERIALIZED VIEW #{legacy_view_name}")
+                logger.info("RefreshFeedsJob: RENAME MATERIALIZED VIEW #{legacy_view_name}")
                 db.exec("ALTER MATERIALIZED VIEW #{legacy_view_name} RENAME TO #{view_name}")
               rescue ex
                 begin
                   # While iterating through, we may have an email stored from a deleted account
                   if db.query_one?("SELECT true FROM users WHERE email = $1", email, as: Bool)
-                    logger.puts("CREATE #{view_name}")
+                    logger.info("RefreshFeedsJob: CREATE #{view_name}")
                     db.exec("CREATE MATERIALIZED VIEW #{view_name} AS #{MATERIALIZED_VIEW_SQL.call(email)}")
                     db.exec("UPDATE users SET feed_needs_update = false WHERE email = $1", email)
                   end
                 rescue ex
-                  logger.puts("REFRESH #{email} : #{ex.message}")
+                  logger.error("RefreshFeedJobs: REFRESH #{email} : #{ex.message}")
                 end
               end
             end

src/invidious/jobs/subscribe_to_feeds_job.cr

@@ -34,10 +34,10 @@ class Invidious::Jobs::SubscribeToFeedsJob < Invidious::Jobs::BaseJob
               response = subscribe_pubsub(ucid, hmac_key, config)
 
               if response.status_code >= 400
-                logger.puts("#{ucid} : #{response.body}")
+                logger.error("SubscribeToFeedsJob: #{ucid} : #{response.body}")
               end
             rescue ex
-              logger.puts("#{ucid} : #{ex.message}")
+              logger.error("SubscribeToFeedsJob: #{ucid} : #{ex.message}")
             end
 
             active_channel.send(true)