chore: refactor dev shell

.gitignore

@@ -20,4 +20,5 @@ vite.config.ts.timestamp-*
 
 # postgresql
 .pg
+.dev_postgres
 PG_DATA

README.md

@@ -15,10 +15,10 @@ bun db:load
 
 ```bash
 nix develop
-start-database
+pg_setup # only first time
+pg_start # if you didn't run above command
 bun i
 bun db:load
-echo DATABASE_URL="postgresql://$(whoami):<passwd>@localhost:5432/database?schema=public" >> .env
 # once your done
-stop-database && exit
+pg_stop && exit
 ```

flake.nix

@@ -1,29 +1,18 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-    utils.url = "github:numtide/flake-utils";
-    devDB = {
-      url = "github:hermann-p/nix-postgres-dev-db";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
 
   outputs =
+    { nixpkgs, ... }:
+    let
+      forAllSystems =
+        with nixpkgs.lib;
+        f: genAttrs systems.flakeExposed (system: f nixpkgs.legacyPackages.${system});
+    in
     {
-      self,
-      nixpkgs,
-      utils,
-      devDB,
-      systems,
-    }:
-    utils.lib.eachSystem (import systems) (
-      system:
-      let
-        pkgs = import nixpkgs { inherit system; };
-        db = devDB.outputs.packages.${system};
-      in
-      {
-        devShells.default =
+      devShells = forAllSystems (pkgs: {
+        default =
           with pkgs;
           mkShell {
             env = {
@@ -33,17 +22,32 @@
             };
             buildInputs = [
               postgresql_17
-              db.start-database
-              db.stop-database
-              db.psql-wrapped
               bun
               nodePackages_latest.prettier
               openssl
             ];
             shellHook = ''
-              export PG_ROOT=$(git rev-parse --show-toplevel)
+              export PG=$PWD/.dev_postgres/
+              export PGDATA="$PG"data
+              export PGPORT=5432
+              export PGHOST=localhost
+              export PGUSER=$USER
+              export PGPASSWORD=postgres
+              export PGDATABASE=example
+              export DATABASE_URL=postgres://$PGUSER:$PGPASSWORD@$PGHOST:$PGPORT/$PGDATABASE
+
+              alias pg_start="pg_ctl -D $PGDATA -l $PG/postgres.log start"
+              alias pg_stop="pg_ctl -D $PGDATA stop"
+              pg_setup() {
+                pg_stop;
+                rm -rf $PG;
+                initdb -D $PGDATA &&
+                echo "unix_socket_directories = '$PGDATA'" >> $PGDATA/postgresql.conf &&
+                pg_ctl -D $PGDATA -l $PG/postgres.log start &&
+                createdb
+              }
             '';
           };
-      }
-    );
+      });
+    };
 }