From 43943e26230562fcf3a6dc516f2c389f768f20fe Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Sat, 9 Dec 2023 15:40:57 +0200
Subject: refactor(tvix/*/protos): separate lint target

Break up the go-bindings derivation. Keep "protos" containing all proto
files (well, and the buf config), and use it for a check phase running
linter and formatter, as well as the existing "go-bindings" attribute

Change-Id: I52cb9d08570bb76452acb831eb711c5b6c0eacfb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10239
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
---
 tvix/castore/protos/default.nix | 50 ++++++++++++++++++++++++++++-------------
 1 file changed, 35 insertions(+), 15 deletions(-)

(limited to 'tvix/castore')

diff --git a/tvix/castore/protos/default.nix b/tvix/castore/protos/default.nix
index 87610689b111..feef55690fb9 100644
--- a/tvix/castore/protos/default.nix
+++ b/tvix/castore/protos/default.nix
@@ -1,19 +1,41 @@
-{ depot, pkgs, ... }: {
+{ depot, pkgs, ... }:
+let
+  protos = depot.nix.sparseTree {
+    name = "castore-protos";
+    root = depot.path.origSrc;
+    paths = [
+      ./castore.proto
+      ./rpc_blobstore.proto
+      ./rpc_directory.proto
+      ../../../buf.yaml
+      ../../../buf.gen.yaml
+    ];
+  };
+in
+depot.nix.readTree.drvTargets {
+  inherit protos;
+
+  # Lints and ensures formatting of the proto files.
+  check = pkgs.stdenv.mkDerivation {
+    name = "proto-check";
+    src = protos;
+
+    nativeBuildInputs = [
+      pkgs.buf
+    ];
+
+    buildPhase = ''
+      export HOME=$TMPDIR
+      buf lint
+      buf format -d --exit-code
+      touch $out
+    '';
+  };
+
   # Produces the golang bindings.
   go-bindings = pkgs.stdenv.mkDerivation {
     name = "go-bindings";
-
-    src = depot.nix.sparseTree {
-      name = "castore-protos";
-      root = depot.path.origSrc;
-      paths = [
-        ./castore.proto
-        ./rpc_blobstore.proto
-        ./rpc_directory.proto
-        ../../../buf.yaml
-        ../../../buf.gen.yaml
-      ];
-    };
+    src = protos;
 
     nativeBuildInputs = [
       pkgs.buf
@@ -23,8 +45,6 @@
 
     buildPhase = ''
       export HOME=$TMPDIR
-      buf lint
-      buf format -d --exit-code
       buf generate
 
       mkdir -p $out
-- 
cgit 1.4.1