This documentation applies to Codacy Self-hosted v3.4.0

For the latest updates and improvements, see the latest Cloud documentation instead.

Code patterns

By default, Codacy uses a subset of the patterns that exist for each tool to analyze your repositories. These default patterns result from community feedback or existing coding standards.

However, you can create a coding standard adapted to your scenario by configuring the tool patterns that Codacy uses to analyze each repository:

1. Open your repository Code patterns page and select the tool to configure:

   

2. Enable or disable the patterns using the checkbox for each pattern.

   To see a detailed explanation about the issues that a pattern can detect and how to fix them, click Details on the top right-hand corner of the pattern. Some patterns also allow you to configure the rules:

   

3. Optionally, manually reanalyze your repository to immediately take the changes into account. Otherwise, Codacy will use the new configuration when it analyzes a new commit or pull request.

Pattern filters

To make it easier to find relevant patterns, you can use the sidebar to filter the patterns by language (only for tools that support multiple languages), category, or status:

Tip

To enable all patterns inside a category, use the filter to list all patterns inside that category and click Enable all.

As an example, if you want to enable all Security patterns of a tool, instead of filtering and then enabling all the patterns one by one, you can add the filter and click Enable all.

Issues detected by Codacy belong to one of the following categories:

• Code Style: Code formatting and syntax problems, such as variable names style and enforcing the use of brackets and quotation marks
• Error Prone: Code that may hide bugs and language keywords that should be used with caution, such as the operator == in JavaScript or Option.get in Scala
• Code Complexity: High complexity methods and classes that should be refactored
• Performance: Code that can have performance problems
• Compatibility: Mainly for frontend code, compatibility problems across different browser versions
• Unused Code: Unused variables and methods, code that can't be reached
• Security: All security problems
• Documentation: Methods and classes that don't have the correct comment annotations

Setting a default configuration for new repositories

If you're adding multiple repositories to Codacy that should reuse the same pattern configuration for a tool, you can define that configuration as the default. Codacy automatically applies that default configuration to new repositories.

To apply the same pattern configuration to multiple repositories:

1. Add the first repository and configure the patterns on that repository for the relevant tools.

2. Expand the menu at the top of the pattern list and select Set default.

   This option sets the current pattern configuration of all tools as the default for your account.

   

After defining the default pattern configuration for your account, the tools in the new repositories that you add will automatically use those pattern configurations.

Alternatively, you can also manually apply the default pattern configuration for your account to all tools by expanding the menu at the top of the pattern list and selecting Reset.

Importing pattern configurations from another repository

Importing tool and pattern configurations from another repository can help you bootstrap and standardize the coding standard across your repositories.

For example, when adding a new repository on Codacy you can copy the tool and pattern configurations from an existing repository that's already configured, and then tweak and adapt the settings for your new repository.

Important

Consider the following when importing tool and pattern configurations:

• Tool matching: Codacy only copies settings for tools that are available on both the source and target repositories, and overwrites the existing settings for these tools on the target repository.
• Toggle status: Codacy copies the enabled or disabled status of the matching tools from the source to the target repository.
• Configuration files: Codacy copies the UI configuration of all matching tools, even those set to use configuration files. However, the import doesn't include the configuration mode itself.

The following example illustrates the points above:

Source repository	Target repository	Target repository after import

To import the tool and pattern configurations from another repository:

1. Open your repository Code patterns and click Import patterns.

   

2. Follow the instructions to select the source repository and complete the import.

3. Review and adjust your tool and pattern configurations if necessary.

Codacy will use the updated configurations on the next analysis.

Using your own tool configuration files

Codacy supports configuration files for several tools. To use a configuration file for your static analysis tool:

1. Add the configuration file to the root of your repository.

2. Open your repository Code patterns page and select Configuration file for the respective tool:

   

The known file names for the tools that support configuration files are the following:

Tool name	Language	Files detected	Other info
Ameba	Crystal	.ameba.yml
Bandit	Python	bandit.yml, .bandit	To solve flagged valid Python "assert" statements, create a bandit.yml in the root of the repository containing: skips: \['B101'\]
Brakeman	Ruby	config/brakeman.yml
Checkstyle	Java	checkstyle.xml	Supports configuration file in directories other than root and can search up to 5 directories into the repository.
CodeNarc	Groovy	.codenarcrc
Credo	Elixir	.credo.exs
CSSLint	CSS	.csslintrc
Detekt	Kotlin	default-detekt-config.yml, detekt.yml	Supports configuration file in directories other than root and can search up to 5 directories into the repository.
ESLint	JavaScript, Typescript	.eslintrc.js, .eslintrc.yaml, .eslintrc.yml, .eslintrc.json, .eslintrc	Plugins in the UI Other Plugins
Hadolint	Docker	.hadolint.yaml
JSHint	JavaScript	.jshintrc
PHP_CodeSniffer	PHP	phpcs.xml, phpcs.xml.dist
PHPMD	PHP	codesize.xml
PMD	Apex, Java, JavaScript, JSP, XML, Velocity and Visualforce	ruleset.xml, apex-ruleset.xml	Supports configuration file in directories other than root and can search up to 5 directories into the repository.
Prospector	Python	.landscape.yml, .landscape.yaml, landscape.yml, landscape.yaml, .prospector.yml, .prospector.yaml, prospector.yml, prospector.yaml
Pylint	Python	pylintrc, .pylintrc	Plugins
RemarkLint	Markdown	.remarkrc, .remarkrc.json, .remarkrc.yaml, .remarkrc.yml, .remarkrc.js
Rubocop	Ruby	.rubocop.yml
Scalastyle	Scala	scalastyle_config.xml, scalastyle-config.xml
SCSSLint	SASS	.scss-lint.yml
Sonar C#	C#	SonarLint.xml
SpotBugs	Java, Scala	findbugs.xml, findbugs-includes.xml, findbugs-excludes.xml	Supports configuration file in directories other than root and can search up to 5 directories into the repository.
Stylelint	LESS, SASS, CSS	.stylelintrc, stylelint.config.js, .stylelintrc.json, .stylelintrc.yaml, .stylelintrc.js, stylelintrc.yml	Supports configuration file in directories other than root and can search up to 5 directories into the repository.
SwiftLint	Swift	.swiftlint.yml
Tailor	Swift	.tailor.yml
TSLint	TypeScript	tslint.json
TSQLLint	SQL	.tsqllintrc
Revive	Go	revive.toml

Note

For performance reasons, if you make changes to pattern settings using configuration files, Codacy may display outdated messages for issues that have already been identified by those patterns.

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Last modified March 11, 2021