External file for sourcemap

Question

I am new to sourcemapping, but I am asked to save sourcemap in an external file, but so far I have managed to concat the sourcemap to the minified .js file. What should I add or take out from this? Or maybe I have got this completely wrong..

return gulp.src(sourceFiles)
           .pipe(sourcemaps.init())
           .pipe(concat('minifiedJS.min.js'))
           .pipe(sourcemaps.write('maps'))
           .pipe(gulp.dest(destinationFolder))

What is the problem with what you have tried? Error messages? Wrong output? — Ruan Mendes, Sep 28 '18 at 13:20

score 1 · Accepted Answer · answered Sep 28 '18 at 13:23

From the docs for gulp-sourcemaps:

To write external source map files, pass a path relative to the destination to sourcemaps.write().

Try passing the current directory (.) as the target path for the source maps.

return gulp.src(sourceFiles)
           .pipe(sourcemaps.init())
           .pipe(concat('minifiedJS.min.js'))
           .pipe(sourcemaps.write('.'))
           .pipe(gulp.dest(destinationFolder))

External file for sourcemap

1 Answers1