This documentation is a preview of the pull request #2086

For the latest updates and improvements in production, open docs.codacy.com instead.

Codacy configuration file#

Codacy supports configuring certain advanced features through a configuration file, such as:

Ignoring files globally, for duplication, or a specific tool
Adjusting tool-specific configurations
Configuring a specific repository directory on which to start the analysis
Adding custom file extensions to languages, keeping in mind that some tools might not work out of the box with those extensions

Using a Codacy configuration file#

Important

If your repository has a Codacy configuration file, the Ignored files settings defined on the Codacy UI don't apply and you must ignore files using the configuration file instead.

To use a Codacy configuration file:

Create a text file with the name .codacy.yml or .codacy.yaml on the root of your repository.

The file must start with a line containing a triple dash (---).

Add your settings to the configuration file based on the example template below.

If you defined any Ignored files settings for the repository, make sure you add those settings to the Codacy configuration file.

---
engines:
  rubocop:
    exclude_paths:
      - "config/test.yml"
    base_sub_dir: "test/baseDir"
  duplication:
    exclude_paths:
      - "config/test.yml"
    config:
      languages:
        - "ruby"
languages:
  css:
    extensions:
      - ".scss"
exclude_paths:
  - ".bundle/**"
  - "spec/**/*"
  - "benchmarks/**/*"
  - "**.min.js"
  - "**/tests/**"

Optionally, validate the syntax of your configuration file with the Codacy Analysis CLI by running the following command in the same folder as the Codacy configuration file:
```
codacy-analysis-cli validate-configuration --directory `pwd`
```

Ignoring files using a Codacy configuration file#

The Codacy configuration file gives you more flexibility in ignoring or excluding files from the Codacy analysis.

Note

To exclude files from coverage analysis only, you must ignore them directly in the tool you're using to generate coverage reports and ensure that the reports you upload to Codacy don't include coverage information for those files.

Syntax for ignoring files#

To ignore files using a Codacy configuration file, you must define one or more patterns under exclude_paths using the Java glob syntax:

Example pattern	Ignored files
`test/README.md`	The file `test/README.md`
`test/*`	All files in the root of test
`test/**`	All files and directories inside test
`test/*/`	All files inside sub-directories of test
`**.resource`	All `.resource` files across all your repository
`*/.resource`	All `.resource` files in all directories and sub-directories

For example:

---
exclude_paths:
  - "test/README.md"
  - "**/*.resource"

Adjusting tool configurations#

Note

The Codacy configuration file lets you configure tools, but you can't enable or disable them. A tool can only be enabled or disabled on the Code patterns page by users with the necessary permissions.

Which tools can be configured and which name should I use?#

You can use the Codacy configuration file to configure all tools supported by Codacy except the client-side tools.

The following are the tool names that must be used in the Codacy configuration file:

ameba
bandit
brakeman
checkov
checkstyle
codacy-scalameta-pro
codenarc
coffeelint
cppcheck
credo
dartanalyzer
detekt
eslint-8
flawfinder
hadolint
jacksonlinter
markdownlint
phpcs
phpmd
pmd
prospector
psscriptanalyzer
pylintpython3
remark-lint
revive
rubocop
scalastyle
semgrep
shellcheck
sonarscharp
sonarvb
spectral
SQLint
stylelint
swiftlint
trivy
tsqllint

The following names are deprecated and shouldn't be used, although they're still accepted in the Codacy configuration file:

bundleraudit - The tool bundler-audit is deprecated. If you are using Semprep or Trivy instead, use the names trivy or semgrep.
csslint - The tool CSSLint is deprecated. If you are using Stylelint instead, use the name stylelint.
eslint - Use the name eslint-8 for ESLint.
jshint, tslint - The tools JSHint and TSLint are deprecated. If you are using ESLint instead, use the name eslint-8.
pylint - Use the name pylintpython3 for Pylint.
tailor - The tool Tailor is deprecated. If you are using SwiftLint instead, use the name swiftlint.

Tool-specific configurations#

By default, Codacy tries to detect which language is used on each source code file, and uses a set of default options for identifying duplicate blocks of code. However, some false positives may occur.

The tools below support specifying the language or language version used in the source code files that you're analyzing, or tuning the duplication detection.

Cppcheck#

If you're using Cppcheck to analyze C or C++ source code files, add the following configuration to your Codacy configuration file to define the programming language you're using. The supported languages are c and c++:

---
engines:
  cppcheck:
    language: c++

PHP_CodeSniffer#

If you're using the PHP Compatibility coding standard for PHP_CodeSniffer, add the following configuration to your Codacy configuration file to define the PHP version you're using:

---
engines:
  phpcs:
    php_version: 5.5

Legacy Pylint 1.9.*#

If you're using the legacy Pylint 1.9.* to analyze Python source code files, add the following configuration to your Codacy configuration file to define the Python language version you're using. The supported versions are 2 and 3:

---
engines:
  pylint:
    python_version: 2

Tip

If you're using Python 3.4.* or later as your programming language, disable the tool Pylint (legacy) and enable the tool Pylint on your repository Code patterns page instead. For more information, see What's New in Pylint 2.0.

PMD CPD (Duplication)#

Codacy uses PMD's Copy/Paste Detector (CPD) to identify duplicated blocks of code on the supported languages.

By default, Codacy only reports duplicate code blocks that have the following minimum token length, depending on the language:

Language	Default minimum token length
C#	50
C/C++	50
Go	40
Java	100
JavaScript	40
Python	50
Ruby	50
SQL	100
Scala	50
Swift	50

Besides this, Codacy runs PMD CPD with the following options enabled by default:

Skip lexical errors: Skip files which can't be tokenized due to invalid characters instead of aborting CPD
Ignore literals: Ignore number values and string contents when comparing text
Ignore annotations: Ignore language annotations when comparing text
Ignore usings: Ignore using directives in C# when comparing text

To use a different minimum token length or change any of the default options, add your settings to the Codacy configuration file based on the example template below.

Important

If you configure minTokenMatch on the Codacy configuration file, Codacy will use that value for all languages.

---
engines:
  duplication:
    minTokenMatch: 20
    skipLexicalErrors: false
    ignoreLiterals: false
    ignoreIdentifiers: true
    ignoreAnnotations: false
    ignoreUsings: false

Share your feedback 📢

Did this page help you?

Thanks for the feedback! Is there anything else you'd like to tell us about this page?

255 characters left

We're sorry to hear that. Please let us know what we can improve:

255 characters left

Alternatively, you can create a more detailed issue on our GitHub repository.

Thanks for helping improve the Codacy documentation.

Edit this page on GitHub if you notice something wrong or missing.

If you have a question or need help please contact support@codacy.com.

Last modified April 2, 2024