chore(rust): switch to validating mlt-nom variant

The `rust/mlt` branch is no longer capable of parsing current data format, and should be migrated to the newer `rust/mlt-nom` implementation. For now, I renamed `rust.yml` into `rust-legacy.yml`, which at some point will be deleted.

Author: nyurik

.github/workflows/rust-legacy.yml

@@ -0,0 +1,82 @@
+name: Rust CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    defaults:
+      run: { working-directory: ./rust/mlt }
+    steps:
+      - uses: actions/checkout@v5
+      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just,cargo-binstall' }
+      - uses: ./.github/actions/mlt-setup-java
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+      - run: just -v ci-test
+
+  test-msrv:
+    name: Test MSRV
+    runs-on: ubuntu-latest
+    defaults:
+      run: { working-directory: ./rust/mlt }
+    steps:
+      - uses: actions/checkout@v5
+      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just' }
+      - uses: ./.github/actions/mlt-setup-java
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+      - name: Read MSRV
+        id: msrv
+        run: echo "value=$(just get-msrv)" >> $GITHUB_OUTPUT
+      - name: Install MSRV Rust ${{ steps.msrv.outputs.value }}
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ steps.msrv.outputs.value }}
+      - run: just -v ci_mode=0 ci-test-msrv  # Ignore warnings in MSRV
+
+  coverage:
+    name: Code Coverage
+    if: github.event_name != 'release' && github.repository_owner == 'maplibre'
+    runs-on: ubuntu-latest
+    defaults:
+      run: { working-directory: ./rust/mlt }
+    steps:
+      - uses: actions/checkout@v5
+      - uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just,cargo-llvm-cov' }
+      - uses: ./.github/actions/mlt-setup-java
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+      - name: Generate code coverage
+        run: just -v ci-coverage
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: target/llvm-cov/codecov.info
+
+  # This job checks if any of the previous jobs failed or were canceled.
+  # This approach also allows some jobs to be skipped if they are not needed.
+  ci-passed:
+    needs: [ test, test-msrv ]
+    if: always()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Result of the needed steps
+        run: echo "${{ toJSON(needs) }}"
+      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+        run: exit 1

.github/workflows/rust.yml

@@ -12,7 +12,7 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     defaults:
-      run: { working-directory: ./rust/mlt }
+      run: { working-directory: ./rust/mlt-nom }
     steps:
       - uses: actions/checkout@v5
       - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
@@ -28,7 +28,7 @@ jobs:
     name: Test MSRV
     runs-on: ubuntu-latest
     defaults:
-      run: { working-directory: ./rust/mlt }
+      run: { working-directory: ./rust/mlt-nom }
     steps:
       - uses: actions/checkout@v5
       - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
@@ -52,7 +52,7 @@ jobs:
     if: github.event_name != 'release' && github.repository_owner == 'maplibre'
     runs-on: ubuntu-latest
     defaults:
-      run: { working-directory: ./rust/mlt }
+      run: { working-directory: ./rust/mlt-nom }
     steps:
       - uses: actions/checkout@v5
       - uses: Swatinem/rust-cache@v2

.pre-commit-config.yaml

@@ -46,7 +46,7 @@ repos:
     hooks:
       - id: actionlint
         additional_dependencies: [ shellcheck-py ]
-        exclude: '.github/workflows/rust.yml'
+        exclude: '\.github/workflows/rust(-legacy)?\.yml'
 
   - repo: local
     hooks: