From 4d856d3fd963069a68c049ae253d5e1703fa3489 Mon Sep 17 00:00:00 2001
From: Leo <leo.a.alho@gmail.com>
Date: Sat, 22 Aug 2026 16:37:57 +0300
Subject: [PATCH] Add postgreSQL initiation scripts to flake.nix

---
 .gitignore |  1 +
 flake.nix  | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 0d2fe7e..5b6a52a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ main
 tmp/
 build-errors.log
 result
+.devdata/
diff --git a/flake.nix b/flake.nix
index 12fe563..243fbd5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,7 +12,7 @@
       system:
       let
         pkgs = import nixpkgs { inherit system; };
-        go = pkgs.go_1_24;
+        go = pkgs.go_1_27;
       in
       {
         packages.default = pkgs.buildGoModule {
@@ -60,6 +60,22 @@
 
           shellHook = ''
             echo "go-backend dev shell — $(go version)"
+
+            export PGDATA="$PWD/.devdata/pgdata"
+            export PGHOST="$PWD/.devdata/pgsocket"
+
+            mkdir -p "$PGHOST"
+
+            if [ ! -d "$PGDATA" ]; then
+              echo "Initializing Postgres data dir..."
+              initdb --auth=trust --no-locale --encoding=UTF8 -U postgres >/dev/null
+            fi
+
+            pg_ctl status >/dev/null 2>&1 || pg_ctl start -l "$PWD/.devdata/pg.log" -o "-k $PGHOST -h 127.0.0.1 -p 5432"
+
+            createdb -U postgres -h 127.0.0.1 backend_template 2>/dev/null || true
+
+            alias pg_stop="pg_ctl stop"
           '';
         };