refactor: restructure project into a workspace by introducing a plugin API crate and modularizing individual plugin definitions.

.github/workflows/ci.yml

@@ -2,28 +2,25 @@ name: CI
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
   test:
-    name: Test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: dtolnay/rust-toolchain@stable
-    - name: Run tests
-      run: cargo test
-
-  build-linux:
-    name: Build Linux
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: dtolnay/rust-toolchain@stable
-    - name: Build
-      run: cargo build --release
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cargo test --workspace --locked
+      - run: cargo build --release --workspace --locked --target x86_64-unknown-linux-gnu
+      - name: Verify plugin-free recommendation
+        run: |
+          test_dir=$(mktemp -d)
+          cp target/x86_64-unknown-linux-gnu/release/convertis "$test_dir/"
+          output=$("$test_dir/convertis" --no-default-plugins assets/example.avif "$test_dir/example.png" 2>&1 || true)
+          echo "$output"
+          echo "$output" | grep -q "Install: convertis-imagemagick"