matrix: create potato-matrix-bridge (#528)

* matrix: create potato-matrix-bridge

* matrix: add unit tests

* matrix: address review comments

* ci: condition github actions to only run on paths affected...

* Add comprehensive unit tests for config, matrix, potatomesh, and main modules

* Revert "Add comprehensive unit tests for config, matrix, potatomesh, and main modules"

This reverts commit 212522b4a2.

* matrix: add unit tests

* matrix: add unit tests

* matrix: add unit tests

.github/workflows/codeql.yml

@@ -36,6 +36,8 @@ jobs:
         include:
         - language: python
           build-mode: none
+        - language: rust
+          build-mode: none
         - language: ruby
           build-mode: none
         - language: javascript-typescript

.github/workflows/javascript.yml

@@ -19,6 +19,9 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+    paths:
+      - 'web/**'
+      - 'tests/**'
 
 permissions:
   contents: read
@@ -47,6 +50,7 @@ jobs:
         files: web/reports/javascript-coverage.json
         flags: frontend
         name: frontend
+        fail_ci_if_error: false
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
     - name: Upload test results to Codecov

.github/workflows/mobile.yml

@@ -19,6 +19,9 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+    paths:
+      - 'app/**'
+      - 'tests/**'
 
 permissions:
   contents: read
@@ -63,5 +66,6 @@ jobs:
         files: coverage/lcov.info
         flags: flutter-mobile
         name: flutter-mobile
+        fail_ci_if_error: false
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/python.yml

@@ -19,6 +19,9 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+    paths:
+      - 'data/**'
+      - 'tests/**'
 
 permissions:
   contents: read
@@ -47,6 +50,7 @@ jobs:
         token: ${{ secrets.CODECOV_TOKEN }}
         files: reports/python-coverage.xml
         flags: python-ingestor
+        fail_ci_if_error: false
         name: python-ingestor
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/ruby.yml

@@ -19,6 +19,9 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+    paths:
+      - 'web/**'
+      - 'tests/**'
 
 permissions:
   contents: read

.github/workflows/rust.yml

@@ -0,0 +1,78 @@
+# Copyright © 2025-26 l5yth & contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Rust
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - '.github/**'
+      - 'matrix/**'
+      - 'tests/**'
+
+permissions:
+  contents: read
+
+jobs:
+  matrix:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v5
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Cache Cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            ./matrix/target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml', '**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+      - name: Show rustc version
+        run: rustc --version
+      - name: Install llvm-tools-preview component
+        run: rustup component add llvm-tools-preview --toolchain stable
+      - name: Install cargo-llvm-cov
+        working-directory: ./matrix
+        run: cargo install cargo-llvm-cov --locked
+      - name: Check formatting
+        working-directory: ./matrix
+        run: cargo fmt --all -- --check
+      - name: Clippy lint
+        working-directory: ./matrix
+        run: cargo clippy --all-targets --all-features -- -D warnings
+      - name: Build
+        working-directory: ./matrix
+        run: cargo build --all --all-features
+      - name: Test
+        working-directory: ./matrix
+        run: cargo test --all --all-features --verbose
+      - name: Run tests with coverage
+        working-directory: ./matrix
+        run: |
+          cargo llvm-cov --all-features --workspace --lcov --output-path coverage.lcov
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./matrix/coverage.lcov
+          flags: matrix-bridge
+          name: matrix-bridge
+          fail_ci_if_error: false