Which gulp plugin can only embed inline styles from a specific file into a page?

Question

css

Which gulp plugin can only embed inline styles from a specific file into an html page?
A few that have been tried embed all the styles included on the page.
Ideally, you need a plugin with a minimum of settings that takes the specified css file and embeds its styles into the header of the specified page.

Answer 1

gulp injection

Answer 2

replace = require('gulp-replace')

var fs = require('fs');
var pls = '<link rel="stylesheet" href="wp-content/themes/dist/css/vendor.css">';
gulp.task('csspush', function(){
 return gulp.src('wp-content/themes/dist/header.php')
  .pipe(replace(pls,function(s) {
      var style = fs.readFileSync('./wp-content/themes/dist/css/vendor.css', 'utf8');
      return '<style>\n' + style + '\n</style>';
  }))
  .pipe(gulp.dest('wp-content/themes/dist/'));
});

on the example of WP