the big dummy rewrite

.dialyzer_ignore.exs

@@ -1,50 +1,48 @@
 [
-  {"deps/type_check/lib/type_check/spec.ex",
-   "The pattern can never match the type {:ok, [], _}."},
-  {"lib/plugin.ex", "Function usage_tuples/0 has no local return."},
-  {"lib/plugin.ex", "Function job_result/0 has no local return."},
-  {"lib/plugin.ex", "Function plugin_job_result/0 has no local return."},
-  {"lib/plugin.ex", "The guard clause can never succeed."},
-  {"lib/services/discord.ex", "Function vips/0 has no local return."},
-  {"lib/services/dummy.ex",
-   "@spec for ask_bot has more types than are returned by the function."},
-  {"lib/services/dummy.ex", "Function dummy_channel_id/0 has no local return."},
-  {"lib/services/dummy.ex", "Function msg_content/0 has no local return."},
-  {"lib/services/dummy.ex", "Function msg_reference/0 has no local return."},
-  {"lib/services/dummy.ex", "Function msg_tuple/0 has no local return."},
-  {"lib/services/dummy.ex", "Function msg_tuple_incoming/0 has no local return."},
-  {"lib/services/dummy.ex", "Function channel/0 has no local return."},
-  {"lib/services/dummy.ex", "Function channel_buffers/0 has no local return."},
-  {"lib/site_config.ex", "Function server_id/0 has no local return."},
-  {"lib/site_config.ex", "Function schema/0 has no local return."},
-  {"lib/site_config.ex", "Function cfg_list/0 has no local return."},
-  {"lib/stampede.ex", "Function dm_tuple/0 has no local return."},
-  {"lib/stampede.ex", "Function server_id/0 has no local return."},
-  {"lib/stampede.ex", "Function prefix/0 has no local return."},
-  {"lib/stampede.ex", "Function enabled_plugs/0 has no local return."},
-  {"lib/stampede.ex", "Function channel_lock_action/0 has no local return."},
-  {"lib/stampede.ex", "Function channel_lock_status/0 has no local return."},
-  {"lib/stampede.ex", "Function timestamp/0 has no local return."},
-  {"lib/stampede.ex", "Function bot_invoked_status/0 has no local return."},
-  {"lib/stampede.ex", "Function module_function_args/0 has no local return."},
-  {"lib/stampede.ex", "Function log_level/0 has no local return."},
-  {"lib/stampede.ex", "Function log_msg/0 has no local return."},
-  {"lib/stampede.ex", "Function kwlist/1 has no local return."},
-  {"lib/stampede.ex", "Function kwlist/0 has no local return."},
-  {"lib/stampede.ex", "Function str_list/0 has no local return."},
-  {"lib/stampede.ex", "Function throw_internal_error/0 has no local return."},
-  {"lib/stampede.ex", "Function throw_internal_error/1 only terminates with explicit exception."},
-  {"lib/stampede/cfg_table.ex", "Function vips/0 has no local return."},
-  {"lib/stampede/cfg_table.ex", "Function table_object/0 has no local return."},
-  {"lib/stampede/external/python.ex", "The pattern can never match the type true."},
-  {"lib/stampede/external/python.ex",
-   "Function do_dumb_down_elixir_term/1 will never be called."},
-  {"lib/stampede/logger.ex", "Function logger_state/0 has no local return."},
-  {"lib/stampede/tables/channel_locks.ex", "The guard clause can never succeed."},
-  {"lib/stampede/tables/interactions.ex", "The guard clause can never succeed."},
-  {"lib/stampede/traceback.ex", "Function t/0 has no local return."},
-  {"lib/txt_block.ex", "Function block/0 has no local return."},
-  {"lib/txt_block.ex", "Function type/0 has no local return."},
-  {"lib/txt_block.ex", "Function t/0 has no local return."},
-  {"lib/txt_block/md.ex", "The guard clause can never succeed."}
+{"deps/type_check/lib/type_check/spec.ex", "The pattern can never match the type {:ok, [], _}."},
+{"lib/plugin.ex", "Function usage_tuples/0 has no local return."},
+{"lib/plugin.ex", "Function job_result/0 has no local return."},
+{"lib/plugin.ex", "Function plugin_job_result/0 has no local return."},
+{"lib/plugin.ex", "The guard clause can never succeed."},
+{"lib/services/discord.ex", "Function vips/0 has no local return."},
+{"lib/services/dummy.ex", "Function dummy_channel_id/0 has no local return."},
+{"lib/services/dummy.ex", "Function dummy_server_id/0 has no local return."},
+{"lib/services/dummy.ex", "Function msg_reference/0 has no local return."},
+{"lib/services/dummy.ex", "Function incoming_msg_tuple/0 has no local return."},
+{"lib/services/dummy.ex", "Function retrieved_msg_tuple/0 has no local return."},
+{"lib/services/dummy.ex", "Function channel_log/0 has no local return."},
+{"lib/services/dummy.ex", "Function server_log/0 has no local return."},
+{"lib/services/dummy/channel.ex", "Function t/0 has no local return."},
+{"lib/site_config.ex", "Function server_id/0 has no local return."},
+{"lib/site_config.ex", "Function schema/0 has no local return."},
+{"lib/site_config.ex", "Function cfg_list/0 has no local return."},
+{"lib/stampede.ex", "Function dm_tuple/0 has no local return."},
+{"lib/stampede.ex", "Function server_id/0 has no local return."},
+{"lib/stampede.ex", "Function prefix/0 has no local return."},
+{"lib/stampede.ex", "Function enabled_plugs/0 has no local return."},
+{"lib/stampede.ex", "Function channel_lock_action/0 has no local return."},
+{"lib/stampede.ex", "Function channel_lock_status/0 has no local return."},
+{"lib/stampede.ex", "Function timestamp/0 has no local return."},
+{"lib/stampede.ex", "Function bot_invoked_status/0 has no local return."},
+{"lib/stampede.ex", "Function module_function_args/0 has no local return."},
+{"lib/stampede.ex", "Function log_level/0 has no local return."},
+{"lib/stampede.ex", "Function log_msg/0 has no local return."},
+{"lib/stampede.ex", "Function kwlist/1 has no local return."},
+{"lib/stampede.ex", "Function kwlist/0 has no local return."},
+{"lib/stampede.ex", "Function str_list/0 has no local return."},
+{"lib/stampede.ex", "Function throw_internal_error/0 has no local return."},
+{"lib/stampede.ex", "Function throw_internal_error/1 only terminates with explicit exception."},
+{"lib/stampede/cfg_table.ex", "Function vips/0 has no local return."},
+{"lib/stampede/cfg_table.ex", "Function table_object/0 has no local return."},
+{"lib/stampede/external/python.ex", "The pattern can never match the type true."},
+{"lib/stampede/external/python.ex", "Function do_dumb_down_elixir_term/1 will never be called."},
+{"lib/stampede/logger.ex", "Function logger_state/0 has no local return."},
+{"lib/stampede/tables/channel_locks.ex", "The guard clause can never succeed."},
+{"lib/stampede/tables/dummy_msgs.ex", "The guard clause can never succeed."},
+{"lib/stampede/tables/interactions.ex", "The guard clause can never succeed."},
+{"lib/stampede/traceback.ex", "Function t/0 has no local return."},
+{"lib/txt_block.ex", "Function block/0 has no local return."},
+{"lib/txt_block.ex", "Function type/0 has no local return."},
+{"lib/txt_block.ex", "Function t/0 has no local return."},
+{"lib/txt_block/md.ex", "The guard clause can never succeed."},
 ]

.github/workflows/elixir.yml

@@ -42,13 +42,15 @@ jobs:
         id: deps-cache
         uses: actions/cache@v4
         with:
+          # would be good to cache priv/plts but something isn't being cached right,
+          # and plt ends up expecting files managed by Nix which aren't there.
+          # example: :dialyzer.run error: File not found: /nix/store/*-erlang-26.2.5.1/lib/erlang/lib/dialyzer-5.1.3/ebin/erl_bif_types.beam
           path: |
             deps
             _build
-            priv/plts
             .nix-mix
             .nix-hex
-          key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/flake.*')) }}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.*')) }}
+          key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/flake.*')) }}-${{ hashFiles(format('{0}{1}', github.workspace, '**/mix.*')) }}
           restore-keys: |
             ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/flake.*')) }}
             ${{ runner.os }}-mix-

README.md

@@ -8,7 +8,7 @@ It is a sequel to the [Stampy](https://github.com/StampyAI/stampy) Discord bot.
 
 ## Use
 
-[Download the Nix package manager](https://nixos.org/download/). This handles the development environment for Stampede. It runs on Linux, Mac, Windows, and Docker. It won't disrupt your system setup -- though once you start using it, it may be hard to stop. :smile:
+[Download the Nix package manager](https://github.com/DeterminateSystems/nix-installer). This handles the development environment for Stampede. It runs on Linux, Mac, Windows, and Docker. It won't disrupt your system setup -- though once you start using it, it may be hard to stop. :smile:
 
 Once Nix is ready, just cd to the dev directory and run `nix develop .#` to load the dev environment, then `mix deps.get` to get the dependencies. Some commands:
 - `iex -S mix` to run Stampede in the `dev` environment, also providing the famous Elixir interactive shell.
@@ -18,5 +18,29 @@ Once Nix is ready, just cd to the dev directory and run `nix develop .#` to load
 
 Configurations for servers are written in YAML and left in `./Sites/`. In different environments (such as `test` and `dev`) it will read configs from `./Sites_{environment-name}`. Check the service documentation for what options your service has available.
 
-- `./lib/services` defines services where chat requests are incoming.
-- `./lib/plugins` defines plugins which suggest potential responses, along with a confidence estimate for how relevant the response would be. Plugins which use resources or take time will offer a *callback* instead, which will only be called if no other plugins have higher confidence.
+  - `./lib/services` defines services where chat requests are incoming. They follow the standard set in `./lib/service.ex`
+- `./lib/plugins` defines plugins which suggest potential responses, along with a confidence estimate for how relevant the response would be. Plugins which use resources or take time will offer a *callback* instead, which will only be called if no other plugins have higher confidence. They follow the standard set in `./lib/plugin.ex`
+
+### Updating `.dialyzer_ignore.exs`
+
+Often when changing code, you will end up with superfluous Dialyzer warnings. You can suppress them by updating the Dialyzer ignore file. To start:
+
+```bash
+rm ./.dialyzer_ignore.exs
+mix dialyzer --format ignore_file_strict &> .dialyzer_ignore.exs.incoming
+```
+
+Remove all but the Elixir tuples, which will look like this:
+
+```elixir
+{"lib/stampede.ex", "Function server_id/0 has no local return."},
+```
+
+Put a `[` at the start of the file and a `]` at the end, so they become one list of tuples. Now you can rename the file to its true name and format it:
+
+```bash
+mv ./.dialyzer_ignore.exs{.incoming,}
+mix format ./.dialyzer_ignore.exs
+```
+
+Now Dialyzer should not raise any more warnings.

config/config.exs

@@ -1,5 +1,10 @@
 import Config
 
+test_or_dev? = Mix.env() in [:test, :dev]
+
+prod? = Mix.env() == :prod
+test? = Mix.env() == :test
+
 # Extra metadata for the logger to keep
 stampede_metadata = [
   :stampede_component,
@@ -23,12 +28,8 @@ extra_metadata =
     stampede_metadata ++
     nostrum_metadata
 
-# Actually start configuring things
-config :stampede,
-  compile_env: Mix.env()
-
 config :stampede, :type_check,
-  enable_runtime_checks: Mix.env() in [:dev, :test],
+  enable_runtime_checks: test_or_dev?,
   debug: false
 
 config :stampede, Stampede.Scheduler,
@@ -92,9 +93,43 @@ config :ex_unit,
 config :nostrum, :ffmpeg, false
 
 config :stampede,
+  compile_env: Mix.env(),
+  services_to_install: [
+    Services.Discord
+  ],
+  # What will actually be started by stampede
+  services_to_start:
+    (if test? do
+       # NOTE: this will have to change if Service-specific tests start making sense
+       [Services.Dummy]
+     else
+       :all
+     end),
+  config_dir:
+    "./Sites" <>
+      (if prod? do
+         ""
+       else
+         "_#{Mix.env()}"
+       end),
+  # enable posting serious errors to the channel specified in :error_log_destination
+  log_post_serious_errors: true,
+  # enable file logging
+  log_to_file: true,
+  # clear tables associated with this compilation environment
+  clear_state: false,
+  error_log_destination: :unset,
   python_exe: System.fetch_env!("FLAKE_PYTHON"),
   python_plugin_dirs: ["./lib_py"]
 
+env_specific_cfg =
+  "./config_#{Mix.env()}.exs"
+  |> Path.expand(__DIR__)
+
+if File.exists?(env_specific_cfg) do
+  import_config env_specific_cfg
+end
+
 for config <- "./*.secret.exs" |> Path.expand(__DIR__) |> Path.wildcard() do
   import_config config
 end

config/config_test.exs

@@ -0,0 +1,10 @@
+import Config
+
+config :stampede,
+  services: [Services.Dummy],
+  log_to_file: false,
+  log_post_serious_errors: false,
+  clear_state: true
+
+config :stampede,
+  test_loaded: true

flake.nix

@@ -23,8 +23,8 @@
     flake-utils.lib.eachDefaultSystem
     (
       system: let
-        # NOTE: change to true to enable commit checks
-        # when disabled, also run "pre-commit uninstall" to disable
+        # NOTE: change to false to disable commit checks
+        # when disabling, also run "pre-commit uninstall" to disable
         enablePreCommitChecks = true;
 
         pkgs = nixpkgs.legacyPackages.${system};
@@ -93,6 +93,8 @@
             dialyzer = {
               enable = true;
               package = ex;
+              pass_filenames = false;
+              require_serial = true;
             };
             custom-mix-test = {
               enable = true;