Added missing file

src/command_info.nim

@@ -0,0 +1,39 @@
+import std/[options, tables]
+import events, input_api
+
+type
+  CommandKeyInfo* = object
+    keys*: string
+    command*: string
+    context*: string
+
+  CommandInfos* = ref object
+    built: bool = false
+    commandToKeys*: Table[string, seq[CommandKeyInfo]]
+
+proc invalidate*(self: CommandInfos) =
+  self.built = false
+  self.commandToKeys.clear()
+
+proc rebuild*(self: CommandInfos, eventHandlerConfigs {.byref.}: Table[string, EventHandlerConfig]) =
+  if self.built:
+    return
+
+  self.built = true
+  self.commandToKeys.clear()
+  for (context, c) in eventHandlerConfigs.pairs:
+    if not c.commands.contains(""):
+      continue
+    for (keys, command) in c.commands[""].pairs:
+      let (action, args) = command.parseAction
+      self.commandToKeys.mgetOrPut(action, @[]).add(CommandKeyInfo(
+        keys: keys,
+        command: command,
+        context: context,
+      ))
+
+proc getInfos*(self: CommandInfos, command: string): Option[seq[CommandKeyInfo]] =
+  if self.commandToKeys.contains(command):
+    return self.commandToKeys[command].some
+
+proc wasBuilt*(self: CommandInfos): bool = self.built