feat: nix support for the nix folks (#3924)

Co-authored-by: opencode <[email protected]>
Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>

1 files changed, 108 insertions, 0 deletions

diff --git a/nix/opencode.nix b/nix/opencode.nix
new file mode 100644
index 000000000..bec299760
--- /dev/null
+++ b/nix/opencode.nix
@@ -0,0 +1,108 @@
+{ lib, stdenv, stdenvNoCC, bun, fzf, ripgrep, makeBinaryWrapper }:
+args:
+let
+  scripts = args.scripts;
+  mkModules =
+    attrs:
+    args.mkNodeModules (
+      attrs
+      // {
+        canonicalizeScript = scripts + "/canonicalize-node-modules.ts";
+        normalizeBinsScript = scripts + "/normalize-bun-binaries.ts";
+      }
+    );
+in
+stdenvNoCC.mkDerivation (finalAttrs: {
+  pname = "opencode";
+  version = args.version;
+
+  src = args.src;
+
+  node_modules = mkModules {
+    version = finalAttrs.version;
+    src = finalAttrs.src;
+  };
+
+  nativeBuildInputs = [
+    bun
+    makeBinaryWrapper
+  ];
+
+  configurePhase = ''
+    runHook preConfigure
+    cp -R ${finalAttrs.node_modules}/. .
+    runHook postConfigure
+  '';
+
+  env.MODELS_DEV_API_JSON = args.modelsDev;
+  env.OPENCODE_VERSION = args.version;
+  env.OPENCODE_CHANNEL = "stable";
+
+  buildPhase = ''
+    runHook preBuild
+
+    cp ${scripts + "/bun-build.ts"} bun-build.ts
+
+    substituteInPlace bun-build.ts \
+      --replace '@VERSION@' "${finalAttrs.version}"
+
+    export BUN_COMPILE_TARGET=${args.target}
+    bun --bun bun-build.ts
+
+    runHook postBuild
+  '';
+
+  dontStrip = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    cd packages/opencode
+    if [ ! -f opencode ]; then
+      echo "ERROR: opencode binary not found in $(pwd)"
+      ls -la
+      exit 1
+    fi
+    if [ ! -f opencode-worker.js ]; then
+      echo "ERROR: opencode worker bundle not found in $(pwd)"
+      ls -la
+      exit 1
+    fi
+
+    install -Dm755 opencode $out/bin/opencode
+    install -Dm644 opencode-worker.js $out/bin/opencode-worker.js
+    if [ -f opencode-assets.manifest ]; then
+      while IFS= read -r asset; do
+        [ -z "$asset" ] && continue
+        if [ ! -f "$asset" ]; then
+          echo "ERROR: referenced asset \"$asset\" missing"
+          exit 1
+        fi
+        install -Dm644 "$asset" "$out/bin/$(basename "$asset")"
+      done < opencode-assets.manifest
+    fi
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    wrapProgram "$out/bin/opencode" --prefix PATH : ${lib.makeBinPath [ fzf ripgrep ]}
+  '';
+
+  meta = {
+    description = "AI coding agent built for the terminal";
+    longDescription = ''
+      OpenCode is a terminal-based agent that can build anything.
+      It combines a TypeScript/JavaScript core with a Go-based TUI
+      to provide an interactive AI coding experience.
+    '';
+    homepage = "https://github.com/sst/opencode";
+    license = lib.licenses.mit;
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+      "aarch64-darwin"
+      "x86_64-darwin"
+    ];
+    mainProgram = "opencode";
+  };
+})