gulp-tslint
v8.1.4
Published
TypeScript linter Gulp plugin
Downloads
111,386
Maintainers
Readme
gulp-tslint
TypeScript linter plugin for Gulp.
First install gulp-tslint
npm install --save-dev gulp-tslint
Peer dependencies
The tslint
module is a peer dependency of gulp-tslint
, which allows you to update tslint independently from gulp-tslint. gulp-tslint requires TypeScript version >=2 and tslint version >=4.
Usage:
// Importing in ES6
import tslint from "gulp-tslint";
// or requiring in ES5
var tslint = require("gulp-tslint");
gulp.task("tslint", () =>
gulp.src("source.ts")
.pipe(tslint({
formatter: "verbose"
}))
.pipe(tslint.report())
);
Types should work automatically.
tslint.json is attempted to be read from near the input file. It must be available or supplied directly through the options.
Failures generated by TSLint are added to file.tslint
.
The format in which failures are outputted may be controlled by specifying a TSLint formatter. The default formatter is "prose". The available formatters include:
- "json" prints stringified JSON to console.log.
- "prose" prints short human-readable failures to console.log.
- "verbose" prints longer human-readable failures to console.log.
- "msbuild" for Visual Studio
- "vso" outputs failures in a format that can be integrated with Visual Studio Online.
- "checkstyle" for the Checkstyle development tool
- "pmd" for the PMD source code analyzer
- "stylish" human-readable formatter which creates stylish messages.
Custom TSLint formatters may also be
used by specifying the formatter
and formattersDirectory
properties on the options passed to
gulp-tslint
.
If upgrading to gulp-tslint v6.0.0 or greater, it should be noted that reporters have been removed
in favour of using TSLint formatters directly. If you were previously specifying a reporter in calls
to .report()
, these should be removed and instead formatter
should be specified in calls to
gulp-tslint
.
If there is at least one failure a PluginError is emitted after execution of the reporters:
[gulp] Error in plugin 'gulp-tslint': Failed to lint: input.ts
You can prevent emiting the error by setting emitError in report options to false.
gulp.task("invalid-noemit", () =>
gulp.src("input.ts")
.pipe(tslint({
formatter: "prose"
}))
.pipe(tslint.report({
emitError: false
}))
);
You can summarize the gulp error message to the number of errors by setting summarizeFailureOutput in report options.
gulp.task("invalid-noemit", () =>
gulp.src("input.ts")
.pipe(tslint({
formatter: "prose"
}))
.pipe(tslint.report({
summarizeFailureOutput: true
}))
);
tslint.json can be supplied as a parameter by setting the configuration property.
gulp.task("tslint-json", () =>
gulp.src("input.ts")
.pipe(tslint({
configuration: {
rules: {
"class-name": true,
// ...
}
}
}))
.pipe(tslint.report())
);
You can also supply a file path to the configuration option, and the file name doesn't need to be tslint.json.
.pipe(tslint({
// contains rules in the tslint.json format
configuration: "source/settings.json"
}))
Report limits
You can optionally specify a report limit in the .report options that will turn off reporting for files after the limit has been reached. If the limit is 0 or less, the limit is ignored, which is the default setting.
gulp.task("tslint", () =>
gulp.src(["input.ts",])
.pipe(tslint({
formatter: "prose"
}))
.pipe(tslint.report({
reportLimit: 2
}))
);
Allowing Warnings
TSLint 5.0 introduced support for a "warning" severity for linting errors. By default, warnings cause gulp-tslint
to emit an error to maintain backwards-compatibility with previous versions. To let the build succeed in the presence of warnings, use the allowWarnings
report option.
gulp.task("tslint", () =>
gulp.src("input.ts")
.pipe(tslint({
formatter: "prose"
}))
.pipe(tslint.report({
allowWarnings: true
}))
);
Specifying the tslint module
If you want to use a different version of tslint, you can supply it with the tslint
option.
npm install tslint@next
.pipe(tslint({
tslint: require("tslint")
}));
Type checked rules
Type checked rules require a TypeScript program object to be provided to the linter in the options. For more information see tslint documentation.
var gulpTslint = require("gulp-tslint");
var tslint = require("tslint");
// NOTE: Ensure 'Linter.createProgram' is called inside the gulp task else the contents of the files will be cached
// if this tasks is called again (eg. as part of a 'watch' task).
gulp.task('lint', function() {
var program = tslint.Linter.createProgram("./tsconfig.json");
return gulp.src('src/**/*.ts', { base: '.' })
.pipe(gulpTslint({ program }));
}
All default tslint options
const tslintOptions = {
configuration: {},
fix: false,
formatter: "prose",
formattersDirectory: null,
rulesDirectory: null,
tslint: null,
program: null
};
All default report options
const reportOptions = {
emitError: true,
reportLimit: 0,
summarizeFailureOutput: false,
allowWarnings: false
};
Development
Fork this repository, run npm install and send pull requests. The project can be build with gulp
command.