From 68cc025b8445f9fb4cd530b82321a51526853d5f Mon Sep 17 00:00:00 2001
From: gari <git@entr0py.de>
Date: Sun, 16 Nov 2025 15:07:00 +0100
Subject: [PATCH] feat: add nix flake package and dev-shell

---
 flake.lock | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix  | 88 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 186 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..f137f66
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,98 @@
+{
+  "nodes": {
+    "crane": {
+      "locked": {
+        "lastModified": 1762538466,
+        "narHash": "sha256-8zrIPl6J+wLm9MH5ksHcW7BUHo7jSNOu0/hA0ohOOaM=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "0cea393fffb39575c46b7a0318386467272182fe",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1762977756,
+        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "crane": "crane",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1763260832,
+        "narHash": "sha256-KMEJ9S7bZLvDIfVu2XdEJTZVYAc/arjFt5KnhGqwCOg=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "c3cea2a0ec0d5debbef4aa2a0cfe59bd0fb0aeeb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "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..78f08c0
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,88 @@
+{
+  description = "Media over QUIC - Gstreamer plugin";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    crane.url = "github:ipetkov/crane";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, crane, rust-overlay}: 
+      flake-utils.lib.eachDefaultSystem (
+        system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [ (import rust-overlay) ];
+          };
+          rust-toolchain = pkgs.rust-bin.stable.latest.default.override {
+            extensions = [
+              "rust-src"
+              "rust-analyzer"
+            ];
+          };
+         craneLib = (crane.mkLib pkgs).overrideToolchain rust-toolchain;
+
+          # Helper function to get crate info from Cargo.toml
+          crateInfo = cargoTomlPath: craneLib.crateNameFromCargoToml { cargoToml = cargoTomlPath; };
+          
+          gstreamerLib = with pkgs ; [
+            gst_all_1.gstreamer.out
+            gst_all_1.gst-plugins-base
+            gst_all_1.gst-plugins-good
+            gst_all_1.gst-plugins-bad
+          ];
+          gstreamerSearch = with pkgs; [
+            gst_all_1.gst-plugins-ugly
+            gst_all_1.gst-plugins-rs
+          ] ++ gstreamerLib;
+
+          shell-deps = with pkgs; [
+            rust-toolchain
+            just
+            pkg-config
+            glib
+            cargo-sort
+            cargo-shear
+            cargo-edit
+            gst_all_1.gstreamer
+          ];
+
+          gstPluginPath = nixpkgs.lib.makeSearchPath "lib/gstreamer-1.0" gstreamerSearch + ":" + nixpkgs.lib.makeLibraryPath gstreamerLib;
+        in {
+          devShell = pkgs.mkShell {
+            packages = shell-deps;
+
+            env = {
+              GST_PLUGIN_PATH_1_0 = gstPluginPath;
+              #PKG_CONFIG_PATH = pkgConfigPath;
+              GST_REGISTRY = "./gst-registry.bin";
+            };
+
+            # if you want zsh instead of bash, uncomment this
+            #shellHook = ''
+            #  exec zsh
+            #'';
+          };
+          packages = {
+            hang-gst = craneLib.buildPackage (
+              crateInfo ./Cargo.toml
+              // {
+                src = craneLib.cleanCargoSource ./.;
+                nativeBuildInputs = with pkgs; [
+                  pkg-config
+                  glib
+                  glib.dev
+                  gst_all_1.gstreamer.dev
+                ];
+                cargoExtraArgs = "-p hang-gst";
+              }
+            );
+            default = self.packages.${system}.hang-gst;
+          };
+        });
+}