Allow to run CI checks locally

Now the developer is able to run the checks easily and locally (by
following the instructions in nova3/README.md).

PR #23262.

.github/workflows/ci_python.yaml

@@ -59,44 +59,25 @@ jobs:
           python-version: '3.9'
 
       - name: Install tools (search engine)
-        run: pip install bandit isort mypy pycodestyle pyflakes pyright
-
-      - name: Gather files (search engine)
+        working-directory: src/searchengine/nova3
         run: |
-          export "PY_FILES=$(find . -type f -name '*.py' -path '*searchengine*' ! -name 'socks.py' -printf '%p ')"
-          echo $PY_FILES
-          echo "PY_FILES=$PY_FILES" >> "$GITHUB_ENV"
+          pip install uv
+          uv sync
 
       - name: Check typings (search engine)
-        run: |
-          curl \
-            -L \
-            -o src/searchengine/nova3/socks.pyi "https://github.com/python/typeshed/raw/refs/heads/main/stubs/PySocks/socks.pyi"
-          MYPYPATH="src/searchengine/nova3" \
-          mypy \
-            --explicit-package-bases \
-            --strict \
-            $PY_FILES
-          pyright \
-            $PY_FILES
+        working-directory: src/searchengine/nova3
+        run: uv run just check
 
       - name: Lint code (search engine)
-        run: |
-          pyflakes $PY_FILES
-          bandit --skip B110,B310,B314,B405 $PY_FILES
+        working-directory: src/searchengine/nova3
+        run: uv run just lint
 
       - name: Format code (search engine)
+        working-directory: src/searchengine/nova3
         run: |
-          pycodestyle \
-            --ignore=E265,E402 \
-            --max-line-length=1000 \
-            --statistics \
-            $PY_FILES
-          isort \
-             --check \
-             --diff \
-             $PY_FILES
+          uv run just format
+          git diff --exit-code
 
       - name: Build code (search engine)
-        run: |
-          python -m compileall $PY_FILES
+        working-directory: src/searchengine/nova3
+        run: uv run just build

.gitignore

@@ -1,4 +1,5 @@
 .vscode/
+
 src/gui/geoip/GeoIP.dat
 src/gui/geoip/GeoIP.dat.gz
 src/qbittorrent
@@ -10,7 +11,6 @@ CMakeLists.txt.user*
 qbittorrent.pro.user*
 conf.pri
 Makefile*
-*.pyc
 *.log
 
 # Compiled object files

src/searchengine/.gitignore

@@ -0,0 +1,4 @@
+*.egg-info
+*.lock
+*.pyc
+*.pyi

src/searchengine/nova3/README.md

@@ -0,0 +1,46 @@
+nova3 Engine
+===
+
+## Development Workflow
+
+0. Prerequisite
+
+   * A Linux-like environment
+   * [Python](https://www.python.org/) installed
+   * [uv](https://docs.astral.sh/uv/) installed
+
+1. Setup development environment
+
+   1. Setup virtual environment and dependencies
+      ```shell
+      uv sync
+      ```
+
+   2. Activate virtual environment
+      ```shell
+      source .venv/bin/activate
+      ```
+
+2. Run type check
+
+   ```shell
+   just check
+   ```
+
+3. Run static analyzer
+
+   ```shell
+   just lint
+   ```
+
+4. Apply formatting
+
+   ```shell
+   just format
+   ```
+
+## References
+
+* [How to write a search plugin](https://github.com/qbittorrent/search-plugins/wiki/How-to-write-a-search-plugin)
+* [just - Command runner](https://just.systems/man/en/)
+* [uv - Python package and project manager](https://docs.astral.sh/uv/)

src/searchengine/nova3/justfile

@@ -0,0 +1,54 @@
+PY_FILES := `find . -maxdepth 1 -type f -name '*.py' ! -name 'socks.py' -printf '%P '`
+
+# Show available recipes to run
+default:
+    just --list
+
+# Run type check
+check files=PY_FILES: fetch_aux
+    mypy \
+        {{ files }}
+    pyright \
+        {{ files }}
+
+# Byte-compile files
+build files=PY_FILES:
+    python \
+        -m compileall \
+        {{ files }}
+
+# Fetch auxiliary files
+[private]
+fetch_aux:
+    #!/usr/bin/sh
+    if [ ! -f 'socks.pyi' ]; then
+        curl -L -o socks.pyi "https://github.com/python/typeshed/raw/refs/heads/main/stubs/PySocks/socks.pyi"
+    fi
+
+# Apply formatting
+format files=PY_FILES:
+    pycodestyle \
+        --ignore=E265,E402 \
+        --max-line-length=1000 \
+        --statistics \
+        {{ files }}
+    isort \
+        --line-length 1000 \
+        {{ files }}
+    just \
+        --fmt \
+        --unstable
+
+# Run static analyzer
+lint files=PY_FILES:
+    pyflakes \
+        {{ files }}
+    bandit \
+        --skip B110,B310,B314,B405 \
+        {{ files }}
+
+# Run tests
+test files='tests/*.py': fetch_aux
+    pytest \
+        --showlocals \
+        {{ files }}

src/searchengine/nova3/pyproject.toml

@@ -0,0 +1,25 @@
+[project]
+name = "qBittorrent-search-engine"
+description = "Search engine for qBittorrent search feature"
+readme = "README.md"
+requires-python = ">=3.9"
+dynamic = ["version"]
+
+[dependency-groups]
+dev = [
+    "bandit",
+    "isort",
+    "mypy",
+    "pycodestyle",
+    "pyflakes",
+    "pyright",
+    "pytest",
+    "rust-just",
+]
+
+[tool.mypy]
+explicit_package_bases = true
+strict = true
+
+[tool.setuptools.packages.find]
+where = ["./"]