roslynator

roslynator documentation

Version in MegaLinter: 0.9.1.0
Visit Official Web Site
See How to configure roslynator rules
See How to disable roslynator rules in files
See Index of problems detected by roslynator

Configuration in MegaLinter

Enable roslynator by adding CSHARP_ROSLYNATOR in ENABLE_LINTERS variable
Disable roslynator by adding CSHARP_ROSLYNATOR in DISABLE_LINTERS variable

Enable autofixes by adding CSHARP_ROSLYNATOR in APPLY_FIXES variable

Variable	Description	Default value
CSHARP_ROSLYNATOR_ARGUMENTS	User custom arguments to add in linter CLI call Ex: `-s --foo "bar"`
CSHARP_ROSLYNATOR_COMMAND_REMOVE_ARGUMENTS	User custom arguments to remove from command line before calling the linter Ex: `-s --foo "bar"`
CSHARP_ROSLYNATOR_FILTER_REGEX_INCLUDE	Custom regex including filter Ex: `(src\\|lib)`	Include every file
CSHARP_ROSLYNATOR_FILTER_REGEX_EXCLUDE	Custom regex excluding filter Ex: `(test\\|examples)`	Exclude no file
CSHARP_ROSLYNATOR_CLI_LINT_MODE	Override default CLI lint mode - `file`: Calls the linter for each file - `project`: Call the linter from the root of the project	`file`
CSHARP_ROSLYNATOR_FILE_EXTENSIONS	Allowed file extensions. `"*"` matches any extension, `""` matches empty extension. Empty list excludes all files Ex: `[".py", ""]`	`[".csproj"]`
CSHARP_ROSLYNATOR_FILE_NAMES_REGEX	File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: `["Dockerfile(-.+)?", "Jenkinsfile"]`	Include every file
CSHARP_ROSLYNATOR_PRE_COMMANDS	List of bash commands to run before the linter	None
CSHARP_ROSLYNATOR_POST_COMMANDS	List of bash commands to run after the linter	None
CSHARP_ROSLYNATOR_UNSECURED_ENV_VARIABLES	List of env variables explicitly not filtered before calling CSHARP_ROSLYNATOR and its pre/post commands	None
CSHARP_ROSLYNATOR_DISABLE_ERRORS	Run linter but consider errors as warnings	`true`
CSHARP_ROSLYNATOR_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	`0`
CSHARP_ROSLYNATOR_CLI_EXECUTABLE	Override CLI executable	`['roslynator']`

IDE Integration

Use roslynator in your favorite IDE to catch errors before MegaLinter !

	IDE	Extension Name	Install
	visual_studio	Roslynator 2022	Visit Web Site
	Visual Studio Code	Roslynator

MegaLinter Flavors

This linter is available in the following flavors

Flavor	Description	Embedded linters
all	Default MegaLinter Flavor	124
dotnet	Optimized for C, C++, C# or VB based projects	61
dotnetweb	Optimized for C, C++, C# or VB based projects with JS/TS	70
formatters	Contains only formatters	17

Behind the scenes

How are identified applicable files

File extensions: .csproj

How the linting is performed

roslynator is called one time by identified file (file CLI lint mode)

Example calls

roslynator analyze myproject.csproj

roslynator fix myproject.csproj

Help content

Roslynator Command Line Tool version 0.9.1.0 (Roslyn version 4.11.0.0)
Usage: roslynator [command] [arguments]

Commands:
  analyze            Analyzes specified project or solution and reports diagnostics.
  find-symbol        Finds symbols in the specified project or solution.
  fix                Fixes diagnostics in the specified project or solution.
  format             Formats whitespace in the specified project or solution.
  generate-doc       Generates reference documentation from specified project/solution.
  generate-doc-root  [deprecated] Generates root documentation file from specified project/solution.
  list-symbols       Lists symbols from the specified project or solution.
  lloc               Counts logical lines of code in the specified project or solution.
  loc                Counts physical lines of code in the specified project or solution.
  migrate            Migrates analyzers to a new version.
  rename-symbol      Rename symbols in the specified project or solution.
  spellcheck         Searches the specified project or solution for possible misspellings or typos.

Run 'roslynator help [command]' for more information on a command.

Installation on mega-linter Docker image

Dockerfile commands :

# Parent descriptor install
RUN apk add --no-cache dotnet8-sdk
ENV PATH="${PATH}:/root/.dotnet/tools"
# Linter install
RUN dotnet tool install -g roslynator.dotnet.cli