Merge pull request #1186 from matrix-org/hs/cache-pls-for-a-bit

Cache MODE -> power level changes before applying

changelog.d/1186.feature

@@ -0,0 +1 @@
+Fix a performance issue where many mode changes in quick succession for a channel would cause many m.room.power_level events to be created.

config.sample.yaml

@@ -495,6 +495,11 @@ ircService:
     # "off" - Defaults to disabled, users can choose to enable.
     # "force-off" - Disabled, cannot be enabled.
     mapIrcMentionsToMatrix: "on" # This can be "on", "off", "force-off".
+
+    # When handling lots of mode changes, wait this long before setting a power level
+    # event in order to batch together changes
+    # powerLevelGracePeriod: 1000
+
 # Options here are generally only applicable to large-scale bridges and may have
 # consequences greater than other options in this configuration file.
 advanced:

package.json

@@ -35,8 +35,8 @@
     "irc": "github:matrix-org/node-irc#9028c2197c216dd8e6fc2cb3cc07ce2d6bf741a7",
     "js-yaml": "^3.14.0",
     "logform": "^2.2.0",
-    "matrix-appservice": "^0.6.0",
-    "matrix-appservice-bridge": "^2.3.0",
+    "matrix-appservice": "^0.7.0",
+    "matrix-appservice-bridge": "^2.3.1",
     "matrix-lastactive": "^0.1.5",
     "nedb": "^1.1.2",
     "nopt": "^3.0.1",