Add Meilisearch service

An open-source, lightning-fast, and hyper-relevant search engine that
fits effortlessly into your workflow.

examples/meilisearch/devenv.nix

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+{ ... }:
+
+{
+  services.meilisearch.enable = true;
+}

examples/meilisearch/devenv.yaml

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+inputs:
+  nixpkgs:
+    url: github:NixOS/nixpkgs/nixpkgs-unstable

src/modules/services/meilisearch.nix

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+{ pkgs, lib, config, ... }:
+
+let
+  cfg = config.services.meilisearch;
+  types = lib.types;
+
+in
+{
+  options.services.meilisearch = {
+    enable = lib.mkEnableOption "Meilisearch";
+
+    listenAddress = lib.mkOption {
+      description = "Meilisearch listen address.";
+      default = "127.0.0.1";
+      type = types.str;
+    };
+
+    listenPort = lib.mkOption {
+      description = "Meilisearch port to listen on.";
+      default = 7700;
+      type = types.port;
+    };
+
+    environment = lib.mkOption {
+      description = "Defines the running environment of Meilisearch.";
+      default = "development";
+      type = types.enum [ "development" "production" ];
+    };
+
+    noAnalytics = lib.mkOption {
+      description = ''
+        Deactivates analytics.
+        Analytics allow Meilisearch to know how many users are using Meilisearch,
+        which versions and which platforms are used.
+        This process is entirely anonymous.
+      '';
+      default = true;
+      type = types.bool;
+    };
+
+    logLevel = lib.mkOption {
+      description = ''
+        Defines how much detail should be present in Meilisearch's logs.
+        Meilisearch currently supports four log levels, listed in order of increasing verbosity:
+        - 'ERROR': only log unexpected events indicating Meilisearch is not functioning as expected
+        - 'WARN:' log all unexpected events, regardless of their severity
+        - 'INFO:' log all events. This is the default value
+        - 'DEBUG': log all events and including detailed information on Meilisearch's internal processes.
+          Useful when diagnosing issues and debugging
+      '';
+      default = "INFO";
+      type = types.str;
+    };
+
+    maxIndexSize = lib.mkOption {
+      description = ''
+        Sets the maximum size of the index.
+        Value must be given in bytes or explicitly stating a base unit.
+        For example, the default value can be written as 107374182400, '107.7Gb', or '107374 Mb'.
+        Default is 100 GiB
+      '';
+      default = "107374182400";
+      type = types.str;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    packages = [ pkgs.meilisearch ];
+
+    env.MEILI_DB_PATH = config.env.DEVENV_STATE + "/meilisearch";
+    env.MEILI_HTTP_ADDR = "${cfg.listenAddress}:${toString cfg.listenPort}";
+    env.MEILI_NO_ANALYTICS = toString cfg.noAnalytics;
+    env.MEILI_ENV = cfg.environment;
+    env.MEILI_DUMP_DIR = config.env.MEILI_DB_PATH + "/dumps";
+    env.MEILI_LOG_LEVEL = cfg.logLevel;
+    env.MEILI_MAX_INDEX_SIZE = cfg.maxIndexSize;
+
+    processes.meilisearch = {
+      exec = "${pkgs.meilisearch}/bin/meilisearch";
+    };
+  };
+}