Add experimental flake.nix

5 files changed, 95 insertions, 0 deletions

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..cffb0da
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,4 @@
+{ pkgs ? import <nixpkgs> {} }:
+{
+  temp-postgres = pkgs.callPackage ./temp-postgres.nix {};
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..7d29dda
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1713248628,
+        "narHash": "sha256-NLznXB5AOnniUtZsyy/aPWOk8ussTuePp2acb9U+ISA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5672bc9dbf9d88246ddab5ac454e82318d094bb8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..386b141
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,21 @@
+# Derived from https://github.com/ryantm/agenix/blob/1381a759b205dff7a6818733118d02253340fd5e/flake.nix
+
+{
+  description = "A temporary PostgreSQL server";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs = { self, nixpkgs, systems }:
+  let
+    eachSystem = nixpkgs.lib.genAttrs (import systems);
+  in {
+    overlays.default = import ./overlay.nix;
+    packages = eachSystem (system: {
+      temp-postgres = nixpkgs.legacyPackages.${system}.callPackage ./temp-postgres.nix {};
+      default = self.packages.${system}.temp-postgres;
+    });
+  };
+}
diff --git a/overlay.nix b/overlay.nix
new file mode 100644
index 0000000..a596a97
--- /dev/null
+++ b/overlay.nix
@@ -0,0 +1,4 @@
+final: prev:
+{
+  temp-postgres = pkgs.callPackage ./temp-postgres.nix {}
+}
diff --git a/temp-postgres.nix b/temp-postgres.nix
new file mode 100644
index 0000000..3dc3338
--- /dev/null
+++ b/temp-postgres.nix
@@ -0,0 +1,23 @@
+{ lib, stdenv, postgresql, makeBinaryWrapper }:
+stdenv.mkDerivation rec {
+  name = "temp-postgres-${version}";
+  version = "0.1";
+
+  src = ./.;
+
+  nativeBuildInputs = [
+    makeBinaryWrapper
+  ];
+
+  buildInputs = [
+    postgresql
+  ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp temp-postgres.sh $out/bin/temp-postgres
+    mkdir -p $out/man/man1
+    cp temp-postgres.1 $out/man/man1/temp-postgres.1
+    wrapProgram $out/bin/temp-postgres --prefix PATH : ${lib.makeBinPath [ postgresql ]}
+  '';
+}