chatgpt

flake.nix

@@ -0,0 +1,127 @@
+{
+  description = "Landkreis-Sprints";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { nixpkgs, rust-overlay, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ (import rust-overlay) ];
+        };
+
+        rust = pkgs.rust-bin.stable.latest.default.override {
+          extensions = [
+            "rustfmt"
+            "clippy"
+          ];
+        };
+      in {
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [
+            rust
+
+            postgresql
+            postgis
+
+            sqlx-cli
+
+            gdal
+            geos
+            proj
+
+            pkg-config
+            openssl
+          ];
+
+          shellHook = ''
+            export PGDATA="$PWD/.pgdata"
+            export PGHOST="$PWD/.pgsocket"
+            export PGPORT="5433"
+            export PGDATABASE="county_sprints"
+            export PGUSER="county_sprints"
+
+            mkdir -p "$PGHOST"
+
+            if [ ! -f "$PGDATA/PG_VERSION" ]; then
+              echo "initialising PostgreSQL..."
+
+              initdb \
+                --auth=trust \
+                --no-locale \
+                "$PGDATA" >/dev/null
+
+              cat >> "$PGDATA/postgresql.conf" <<PGEOF
+listen_addresses = ''
+port = 5433
+unix_socket_directories = '$PGHOST'
+PGEOF
+            fi
+
+            if ! pg_ctl -D "$PGDATA" status >/dev/null 2>&1; then
+              pg_ctl \
+                -D "$PGDATA" \
+                -o "-k $PGHOST -p $PGPORT" \
+                -l "$PGDATA/postgresql.log" \
+                start >/dev/null
+            fi
+
+            if ! psql \
+              -h "$PGHOST" \
+              -p "$PGPORT" \
+              -d postgres \
+              -tAc "SELECT 1 FROM pg_roles WHERE rolname='$PGUSER'" |
+              grep -q 1
+            then
+              createuser \
+                -h "$PGHOST" \
+                -p "$PGPORT" \
+                "$PGUSER"
+            fi
+
+            if ! psql \
+              -h "$PGHOST" \
+              -p "$PGPORT" \
+              -d postgres \
+              -tAc "SELECT 1 FROM pg_database WHERE datname='$PGDATABASE'" |
+              grep -q 1
+            then
+              createdb \
+                -h "$PGHOST" \
+                -p "$PGPORT" \
+                -O "$PGUSER" \
+                "$PGDATABASE"
+            fi
+
+            if ! psql \
+              -h "$PGHOST" \
+              -p "$PGPORT" \
+              -d "$PGDATABASE" \
+              -tAc "SELECT 1 FROM pg_extension WHERE extname='postgis'" |
+              grep -q 1
+            then
+              psql \
+                -h "$PGHOST" \
+                -p "$PGPORT" \
+                -d "$PGDATABASE" \
+                -c "CREATE EXTENSION postgis;" >/dev/null
+            fi
+
+            export DATABASE_URL="postgresql://$PGUSER@/$PGDATABASE?host=$PGHOST&port=$PGPORT"
+
+            echo
+            echo "========================================"
+            echo " county-sprints development environment"
+            echo "========================================"
+            echo "DATABASE_URL=$DATABASE_URL"
+            echo
+          '';
+        };
+      }
+    );
+}