Ternary operator for Gulp.
npm install gulp-cond[//]: # ( )
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[//]: # (module. Do not change it except between the)
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[//]: # (be overridden.)
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[//]: # (::contents:start)
First, install gulp-cond as a development dependency:
``shell`
npm install --save-dev gulp-cond
Then, use it to conditionally pipe plugins in your gulpfile.js:
`js
import cond from 'gulp-cond';
var prod = gulp.env.prod;
// Images
gulp.task('build_images', function() {
gulp.src('assets/images/*/.svg')
.pipe(cond(prod,
gSvgmin(options), // minify SVG images under production
gWatch().pipe(gLivereload(server))) // use live reload in dev mode
)
.pipe(gulp.dest('www/images'))
});
`
Alternatively, you can provide plugin functions instead of streams to
instantiate streams only when needed :
`js
import cond from 'gulp-cond';
var prod = gulp.env.prod;
// Images
gulp.task('build_images', function() {
gulp.src('assets/images/*/.svg')
.pipe(cond(prod,
gSvgmin.bind(null, options), // minify SVG images under production
function () { // use live reload in dev mode
return gWatch().pipe(gLivereload(server));
})
)
.pipe(gulp.dest('www/images'))
});
`
#### condition
Type: Boolean or Function
Required. A value or a function providing a value. If the value is truthy, expr1
will be used, else, expr2 will be use if provided.
#### expr1
Type: Stream or Function
Required. A stream or a function providing a stream.
#### expr2
Type: Stream or Function
Default value:
A stream or a function providing a stream.
You may want to contribute to this project, pull requests are welcome if you
accept to publish under the MIT license.
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