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Lint DotHTML

The DotVVM Command-Line tool can be used to lint (list compiler errors and warnings in) pages, master pages, and markup controls in both ASP.NET Core and OWIN projects without running them.

Syntax

dotnet dotvvm lint [options] [<target>]

Arguments

  • [<target>] - an optional path to the DotVVM project to lint. If left unspecified, the current working directory is used.

Options

  • --no-color - disables ANSI colors in diagnostic output. By default, file names, errors, warnings, and affected markup are colorized to improve readability.
  • --no-build - the <target> project is built with dotnet build by default. This switch disables that behavior. The <target> project must be built before running this project.
  • --verbose-build-output - shows the MSBuild output from the restore and build steps.
  • --configuration <configuration> - the configuration used to build the <target> project or to locate its binary if --no-build is present. Is set to Debug by default.
  • --framework <framework> - the target framework used to build the <target> project or to locate its binary if --no-build is present. If left unspecified, the first entry in the TargetFrameworks (or TargetFramework) MSBuild property is used.

Output

Diagnostics include the markup file and location.

Views/Errors/MissingViewModel.dothtml(1,0): error: The @viewModel directive is missing in the page 'Views/Errors/MissingViewModel.dothtml'!
    1: <!DOCTYPE html>
    2: <html>
    3: <body>
    4:     Content
    5: </body>
    6: </html>

Application startup

The lint command does not run Startup.cs or Program.cs. It only looks for DotvvmStartup.cs and runs Configure and ConfigureServices to discover controls and register services related to DotVVM.

The linter may fail if ConfigureServices (in DotvvmStartup) works with services that depend on services registered elsewhere. In such case, you will need to move the dependencies to DotvvmStartup service registrations, or you can use the IsDotvvmCompiler property of IDotvvmServiceCollection to detect whether the code is invoked from the linter, and skip registering services with these outer dependencies.

See also

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