Use envvars to configure srv

config.nix

@@ -5,7 +5,7 @@
     powSecret = "ssshhh";
     mlSMTPAddr = "";
     mlSMTPAuth = "";
-    publicURL = "http://localhost:4000";
+    mlPublicURL = "http://localhost:4000";
     listenProto = "tcp";
     listenAddr = ":4000";
 

default.nix

@@ -23,11 +23,13 @@
 
     static = (import ./static) { inherit pkgs; };
 
-    srv = (import ./srv) {
+    srv = pkgs.callPackage (import ./srv) {
-        inherit pkgs config;
+        inherit config;
         staticBuild=static.build;
     };
 
+    srvBin = srv.bin;
+
     redisCfg = pkgs.writeText "mediocre-blog-redisCfg" ''
         port 0
         unixsocket ${config.redisListenPath}

srv/.gitignore

@@ -1 +0,0 @@
-mailinglist.sqlite3

srv/default.nix

@@ -1,25 +1,42 @@
-{pkgs, config, staticBuild}: rec {
+{
+  buildGoModule,
+  writeScript,
+  writeScriptBin,
+  stdenv,
 
-    mailingListOpts = [
+  config,
-        "-ml-smtp-addr=${config.mlSMTPAddr}"
+  staticBuild,
-        "-ml-smtp-auth='${config.mlSMTPAuth}'"
+}: rec {
-        "-data-dir=${config.dataDir}"
-        "-public-url=${config.publicURL}"
-    ];
 
-    opts = mailingListOpts ++ [
+    env = ''
-        "-pow-secret=${config.powSecret}"
-        "-listen-proto=${config.listenProto}"
-        "-listen-addr=${config.listenAddr}"
-        "-redis-proto=unix"
-        "-redis-addr=${config.redisListenPath}"
-    ] ++ (
-        if config.staticProxyURL == ""
-        then [ "-static-dir=${staticBuild}" ]
-        else [ "-static-proxy-url=${config.staticProxyURL}" ]
-    );
 
-    build = pkgs.buildGoModule {
+      export MEDIOCRE_BLOG_DATA_DIR=${config.dataDir}
+
+      # mailing list
+      export MEDIOCRE_BLOG_ML_SMTP_ADDR=${config.mlSMTPAddr}
+      export MEDIOCRE_BLOG_ML_SMTP_AUTH='${config.mlSMTPAuth}'
+      export MEDIOCRE_BLOG_ML_PUBLIC_URL=${config.mlPublicURL}
+
+      # redis
+      export MEDIOCRE_BLOG_REDIS_PROTO=unix
+      export MEDIOCRE_BLOG_REDIS_ADDR=${config.redisListenPath}
+
+      # pow
+      export MEDIOCRE_BLOG_POW_SECRET=${config.powSecret}
+
+      # static proxy
+      if [ "${config.staticProxyURL}" == "" ]; then
+        export MEDIOCRE_BLOG_STATIC_DIR=${staticBuild}
+      else
+        export MEDIOCRE_BLOG_STATIC_URL=${config.staticProxyURL}
+      fi
+
+      # listening
+      export MEDIOCRE_BLOG_LISTEN_PROTO=${config.listenProto}
+      export MEDIOCRE_BLOG_LISTEN_ADDR=${config.listenAddr}
+    '';
+
+    build = buildGoModule {
         pname = "mediocre-blog-srv";
         version = "dev";
         src = ./.;
@@ -29,24 +46,17 @@
         checkPhase = '''';
     };
 
-    bin = pkgs.writeScript "mediocre-blog-srv-bin" ''
+    bin = writeScript "mediocre-blog-srv-bin" ''
         #!/bin/sh
         mkdir -p "${config.dataDir}"
-        exec ${build}/bin/mediocre-blog ${toString opts}
+        source ${env}
+        exec ${build}/bin/mediocre-blog
     '';
 
-    runScript = pkgs.writeScriptBin "run-mediocre-blog" ''
+    shell = stdenv.mkDerivation {
-        mkdir -p "${config.dataDir}"
-        go run ./cmd/mediocre-blog/main.go ${toString opts}
-    '';
-
-    runMailingListCLIScript = pkgs.writeScriptBin "run-mailinglist-cli" ''
-        go run ./cmd/mailinglist-cli/main.go ${toString mailingListOpts} "$@"
-    '';
-
-    shell = pkgs.stdenv.mkDerivation {
         name = "mediocre-blog-srv-shell";
-        buildInputs = [ pkgs.go runScript runMailingListCLIScript ];
+        shellHook = ''
+          source ${env}
+        '';
     };
-
 }

srv/mailinglist/mailinglist.go

@@ -53,7 +53,7 @@ type Params struct {
 
 // SetupCfg implement the cfg.Cfger interface.
 func (p *Params) SetupCfg(cfg *cfg.Cfg) {
-	publicURLStr := cfg.String("public-url", "http://localhost:4000", "URL this service is accessible at")
+	publicURLStr := cfg.String("ml-public-url", "http://localhost:4000", "URL this service is accessible at")
 
 	cfg.OnInit(func(ctx context.Context) error {
 		var err error