Merge pull request #518 from rainlanguage/2026-05-27-regen-artifacts

CopyArtifacts: write trailing newline to match prettier (fix copy-artifacts CI)

Author: thedavidmeister

.github/workflows/copy-artifacts.yaml

@@ -2,36 +2,9 @@ name: copy-artifacts
 on: [push]
 jobs:
   copy-artifacts:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: nixbuild/nix-quick-install-action@v30
-        with:
-          nix_conf: |
-            keep-env-derivations = true
-            keep-outputs = true
-      - name: Restore and save Nix store
-        uses: nix-community/cache-nix-action@v7
-        with:
-          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
-          restore-prefixes-first-match: nix-${{ runner.os }}-
-          gc-max-store-size-linux: 1G
-      - name: Install soldeer dependencies
-        if: hashFiles('soldeer.lock') != ''
-        run: nix develop github:rainlanguage/rainix#sol-shell -c forge soldeer install
-      - name: Regenerate meta files
-        run: nix run .#rainlang-prelude
-      - name: Regenerate pointer artifacts
-        run: nix develop github:rainlanguage/rainix#sol-shell -c forge script ./script/BuildPointers.sol
-      - name: Build Solidity
-        run: nix develop github:rainlanguage/rainix#sol-shell -c forge build
-      - name: Copy forge artifacts into committed location
-        run: nix develop github:rainlanguage/rainix#sol-shell -c forge script ./script/CopyArtifacts.sol --ffi
-      - name: Format (so generated artifacts match committed style)
-        run: nix develop github:rainlanguage/rainix#sol-shell -c forge fmt
-      - name: Assert committed artifacts match freshly built
-        run: |
-          if ! git diff --exit-code; then
-            echo "::error::Committed meta/pointer/abi artifacts are stale. Run rainlang-prelude, BuildPointers.sol, CopyArtifacts.sol, forge fmt, and commit."
-            exit 1
-          fi
+    # Shared reusable (rainix#201): build from committed sources and assert the
+    # committed meta/pointer/abi artifacts are still current. Includes the
+    # Cachix substitution + 8G GC cap; no prelude (committing the artifacts is
+    # what removes the need for one). secrets: inherit carries CACHIX_AUTH_TOKEN.
+    uses: rainlanguage/rainix/.github/workflows/rainix-copy-artifacts.yaml@main
+    secrets: inherit

script/CopyArtifacts.sol

@@ -20,7 +20,10 @@ contract CopyArtifacts is Script {
             //forge-lint: disable-next-line(unsafe-cheatcode)
             vm.removeFile(dst);
         }
+        // Trailing newline so the written file matches the prettier-formatted
+        // committed artifact (prettier adds a final newline to JSON; without it
+        // the copy-artifacts determinism check and the prettier hook fight).
         //forge-lint: disable-next-line(unsafe-cheatcode)
-        vm.writeFile(dst, string(artifact));
+        vm.writeFile(dst, string.concat(string(artifact), "\n"));
     }
 }