Sergio Sanchez Sergio Sanchez - 10 days ago 6
Javascript Question

how configure relative file path to dist folder on gulp-inject?

I have a issue when inject resources into the index.html with gulp-inject.

I have the following streams for app styles, vendor js code and app js code:

// Vendor JS code
var vendorStream = gulp.src(mainBowerFiles({
paths: {
bowerDirectory: config.bowerDir
},
checkExistence: true
}))
.pipe(concat('vendors.js'))
.pipe(gulp.dest(config.bowerLibDist))
.pipe(size({
title:"Vendor JS code"
}));

// JS App Code
var jsStream = gulp.src(config.jsSrcPath)
.pipe(concat('app.js'))
.pipe(uglify())
.pipe(gulp.dest(config.jsDistFolder))
.pipe(size({
title:"App js code"
}));

// SASS App Code
var cssStream = gulp.src(config.sassSrcPath)
.pipe(sass({
outputStyle: 'compressed'
})
.on('error', sass.logError))
.pipe(autoprefixer())
.pipe(gulpIf(config.production, cssnano()))
.on("error", notify.onError(function (error) {
return "Error: " + error.message;
})).pipe(gulp.dest(config.cssDistFolder))
.pipe(size({
title:"Styles"
}));


What I want to do is take the index.ml inject these resources and place them in the dist directory throught the following task:

gulp.task('inject', function() {
return gulp.src('index.html', {cwd: './app'})
.pipe(inject(es.merge(vendorStream, jsStream, cssStream)))
.pipe(htmlmin({collapseWhitespace: true}))
.pipe(gulp.dest(config.distFolder));
});


This works correctly, but the problem is that the path also includes the dist directory. This is the publishing base directory:

// Starts a server using the production build
gulp.task('server', ['build'], function () {
connect.server({
root: './dist',
hostname: '0.0.0.0',
port: 90
});
});


How could I configure gulp-inject so that instead of

<script src="/dist/js/app.js"></script>


be

<script src="js/app.js"></script>


thanks :)

Answer

One of the ways is to use transform function.

gulp.task('inject', function() {
  return gulp.src('index.html', {cwd: './app'})
             .pipe(inject(
                 es.merge(vendorStream, jsStream, cssStream),
                 { 
                     transform: function( filepath, file, index, length, targetFile ) {
                       return inject.transform.call(inject.transform, filepath.replace(/\/dist\//, ""), file, index, length, targetFile);
                     }
                 }
             ))
             .pipe(htmlmin({collapseWhitespace: true}))
             .pipe(gulp.dest(config.distFolder));
});

You can keep also the initial transform function if you only want to change the filename.

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