Add PostgreSQL version-specific Nix packages

1 files changed, 38 insertions, 20 deletions

diff --git a/flake.nix b/flake.nix
index 7b2eb9c..2076939 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,28 +30,46 @@
         let
           version = builtins.head (lib.splitString "\n" (builtins.readFile ./version));
           revision = lib.toString (self.shortRev or self.dirtyShortRev or "unknown");
+          mkPackage =
+            {
+              postgresql,
+              suffix ? "",
+            }:
+            pkgs.stdenv.mkDerivation {
+              name = "temp-postgres-${version}-${revision}${suffix}";
+              version = "${version}-${revision}";
+              src = lib.cleanSource (
+                builtins.path {
+                  path = ./.;
+                  name = "temp-postgres";
+                }
+              );
+              nativeBuildInputs = [ pkgs.makeBinaryWrapper ];
+              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 : ${lib.makeBinPath [ postgresql ]}
+              '';
+            };
+          postgresqlVersions = lib.mapAttrs' (
+            name: drv:
+            let
+              postgresqlVersion = lib.removePrefix "postgresql_" name;
+            in
+            lib.nameValuePair "temp-postgres_${postgresqlVersion}" (mkPackage {
+              postgresql = drv;
+              suffix = "_${postgresqlVersion}";
+            })
+          ) pkgs.postgresqlVersions;
         in
         {
-          packages.default = self'.packages.temp-postgres;
-
-          packages.temp-postgres = pkgs.stdenv.mkDerivation {
-            name = "temp-postgres-${version}-${revision}";
-            version = "${version}-${revision}";
-            src = lib.cleanSource (
-              builtins.path {
-                path = ./.;
-                name = "temp-postgres";
-              }
-            );
-            nativeBuildInputs = [ pkgs.makeBinaryWrapper ];
-            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 [ pkgs.postgresql ]}
-            '';
-          };
+          packages = {
+            default = self'.packages.temp-postgres;
+            temp-postgres = mkPackage { postgresql = pkgs.postgresql; };
+          }
+          // postgresqlVersions;
 
           formatter = pkgs.nixfmt-tree;