fixup: Add separate command for updating the nix flake

Author: maru-ava

.github/workflows/ci.yaml

@@ -251,7 +251,7 @@ jobs:
       - uses: DeterminateSystems/nix-installer-action@786fff0690178f1234e4e1fe9b536e94f5433196 #v20
       - uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 #v13
       - name: Check that FFI flake is up-to-date
-        run: ./run-just.sh check-ffi-flake-current
+        run: ./run-just.sh check-ffi-flake
       - name: Test nix build of Golang FFI bindings
         run: ./run-just.sh test-ffi-nix
 

ffi/go.mod

@@ -4,7 +4,7 @@ go 1.24
 
 // Changes to the toolchain version should be replicated in:
 //   - ffi/go.mod (here)
-//   - ffi/flake.nix (update golang.url to a version of avalanchego's nix/go/flake.nix that uses the desired version and run `nix flake update golang`)
+//   - ffi/flake.nix (update golang.url to a version of avalanchego's nix/go/flake.nix that uses the desired version and run `just update-ffi-flake`)
 //   - ffi/tests/eth/go.mod
 //   - ffi/tests/firewood/go.mod
 toolchain go1.24.9

justfile

@@ -21,12 +21,9 @@ check-clean-branch:
     git diff-index --quiet HEAD
 
 # Check if the FFI flake (requires clean git tree)
-check-ffi-flake-current: check-nix
-    #!/usr/bin/env bash
-    set -euo pipefail
-    cd ffi
-    nix flake update golang
-    ../run-just.sh check-clean-branch
+check-ffi-flake: check-nix
+    ./run-just.sh update-check-ffi-flake
+    ./run-just.sh check-clean-branch
 
 # Check if nix is installed
 check-nix:
@@ -76,3 +73,10 @@ test-ffi-nix-go-bindings: build-ffi-nix
     # - cgocheck2 is expensive but provides complete pointer checks
     # - use hash mode ethhash since the flake builds with `--features ethhash,logger`
     GOEXPERIMENT=cgocheck2 TEST_FIREWOOD_HASH_MODE=ethhash ${GO} test ./...
+
+# Ensure the FFI flake is up-to-date
+update-check-ffi-flake: check-nix
+    #!/usr/bin/env bash
+    set -euo pipefail
+    cd ffi
+    nix flake update golang