Metadata-Version: 2.1
Name: bugalint
Version: 4.0.0
Summary: An abstraction package for running linters on code, outputting the results in a unified format.
Home-page: https://github.com/bugale/bugalint
Author: Bugale
Author-email: bugale@bugalit.com
License: MIT
Description: # Bugalint
        
        An abstraction package for running linters on code, outputting the results in a unified format.
        
        ## Usage
        
        First, `pip` install bugalint:
        
            $ pip install bugalint
        
        > Bugalint requires Python 3.7+.
        
        Next, you need to setup a configuration file, named by default `setup.cfg`:
        ```
        [bugalint.lints.example]
        path = source_code/
        mypy = True
        flake8 = True
        pylint = True
        ```
        
        Now, simply run `bugalint` from the directory in which `setup.cfg` resides:
        
            $ bugalint
        
        `bugalint` will run the selected 3 linters (mypy, flake8, and pylint) on the selected path (`source_code/`)
        
        ## Supported Built-in Linters
        
        - [flake8](http://flake8.pycqa.org/en/latest/)
        - [pylint](https://www.pylint.org/)
        - [mypy](https://mypy.readthedocs.io/en/stable/)
        
        Additional linters can be added in the `setup.cfg` file.
        
        ## Adding Lint Runs
        
        Bugalint can run linters on more than one directory. It looks for any section of the form `[bugalint.lints.<name>]` in the configuration file,
        and expects it to contain a key named `path`, which supports glob syntax, and any other key with a name of a linter, and the value `True`.
        Bugalint will run the given linters, with `path` as their working directory.
        
        For example, suppose we have the following file structure:
        ```
        +-- foo
        |   +-- file.py
        +-- bar
        |   +-- foo1
        |   |   +-- bar
        |   |   |   +-- file.py
        |   +-- foo2
        |   |   +-- bar
        |   |   |   +-- file.py
        ```
        
        And suppose we have the following configuration file:
        ```
        [bugalint.lints.lint1]
        path = foo
        mypy = True
        
        [bugalint.lints.lint2]
        path = bar/*/bar
        mypy = True
        flake8 = True
        ```
        
        Bugalint will run the following:
         - `mypy .` with `foo` as its working directory
         - `mypy .` with `bar/foo1/bar` as its working directory
         - `mypy .` with `bar/foo2/bar` as its working directory
         - `flake8 .` with `bar/foo1/bar` as its working directory
         - `flake8 .` with `bar/foo2/bar` as its working directory
        
        Bugalint will combine all of their warnings to a unified output format.
        
        ## Using Additional Linters
        
        For running a linter that isn't built-in, Bugalint needs only two strings:
         - The command line to run
         - The regular expression to apply on its standard output
        
        This information needs to be placed inside the `setup.cfg` file in the working directory of Bugalint.
        An example of the configuration file adding a new linter called my-lint can be:
        ```
        [bugalint.linters.my-lint]
        cmdline = my-lint --my-flag .
        regex = ^(?P<file>[^:]*):(?P<line>\d*):(?P<col>\d*): (?P<code>[^:]*): (?P<text>.*)$
        ```
        
        Bugalint will run the given command line, and try to match each line of its standard output to the given regular expression.
        If the regular expression matches a line, it will be considered "a linter warning", and some named captures from the regular expression
        will be used to determine its location in the code, message, etc.
        
        ### Linter Regex Named Captures
        
        Bugalint will use named captures from the regular expression to determine the information about a linter warning. All of the named captures are optional.
        The list of supported named captures is:
         - `file` - The path to the file in which the warning was triggered. Can be absolute, or relative to the working directory of the linter
         - `line` - The line number in which the warning was triggered
         - `col` - The column number in which the warning was triggered
         - `code` - A short code or number representing the issue found
         - `text` - A free text describing the issue
        
        ## Modifying Built-in Linters Behavior
        
        In most cases, modifying the behavior of one of the built-in linters can and should be done using a configuration file (see docs relevant to that linter).
        Nevertheless, in some cases, you might want to change the command line that Bugalint runs.
        
        Doing this is simple, and similar to defining new linters.
        Adding the following to the configuration file, will modify the command line of `mypy`:
        ```
        [bugalint.linters.mypy]
        cmdline = mypy --additional-flag .
        ```
        
        Similarly, the regex of a built-in linter can be modified too:
        ```
        [bugalint.linters.mypy]
        cmdline = mypy --additional-flag .
        regex = ^my new regex$
        ```
        
        ### Command line
        
        A list of all configuration values can be viewed by running `bugalint --help`.
        
        ```
        usage: bugalint [-h] [--config CONFIG] [--verbose] [--output {textual,json}]
        
        optional arguments:
          -h, --help            show this help message and exit
          --config CONFIG       The config file to use (default: setup.cfg)
          --verbose             Write debug log messages to stderr (default: False)
          --output {textual,json}
                                The output format (default: textual)
        ```
        
        The return value of Bugalint is the number of linter warnings it detected (0 = no warnings)
        
        ## Integration with Lintly
        
        Bugalint can be easily integrated with [Lintly](https://github.com/grantmcconnaughey/Lintly).
        It supports the command line argument `--output=json`, which outputs the warnings in a JSON format similar to that of pylint.
        It can then be passed to Lintly:
        ```
        bugalint --output=json | lintly --format=pylint-json
        ```
        
        Bugalint will output file paths relative to its working directory, so as long as it is being run from the root of the repository,
        lintly will receive paths it can handle correctly.
        
        A full example of a GitHub check workflow:
        ```
        name: Lint
        
        on:
          pull_request:
            paths:
              - 'python_project/**/*'
        
        jobs:
          lint:
            runs-on: ubuntu-latest
            steps:
            - uses: actions/checkout@v2
            - uses: actions/setup-python@v2
              with:
                python-version: 3.8
            - name: Install dependencies
              run: |
                python -m pip install bugalint lintly mypy pylint flake8
            - name: Lint
              run: |
                bugalint --output=json | lintly --format=pylint-json
              env:
                LINTLY_API_KEY: ${{ secrets.GITHUB_TOKEN }}
        ```
        
Platform: any
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Console
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: POSIX
Classifier: Operating System :: MacOS
Classifier: Operating System :: Unix
Classifier: Operating System :: Microsoft :: Windows
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: Software Development :: Quality Assurance
Description-Content-Type: text/markdown
Provides-Extra: dev
