gulp chown doesn't change owner - gulp

Question

I am trying to make a build process, sort of, and it seems like gulp-chown doesn't give me the correct results.
This is what I run:
gulp.task('clientDeploy', function () {
return gulp.src('client/dist/**/*')
.pipe(chown('rf', 'rfids'))
.pipe(gulp.dest('/var/www/html/dashboard'));
});
The gulp script runs as root, obviously.
The result is this:
drwxr-xr-x 2 root root 4.0K Jun 29 12:57 css/
drwxr-xr-x 2 root root 4.0K Jun 29 12:57 fonts/
drwxr-xr-x 2 root root 4.0K Jun 29 12:57 icons/
drwxr-xr-x 3 root root 4.0K Jun 29 12:57 images/
drwxr-xr-x 2 root root 4.0K Jun 29 12:57 js/
-rw-rw-r-- 1 root root 8.3K Jun 29 13:15 events-panel.html
-rw-r--r-- 1 root root 20K Jun 29 13:15 index.html
-rw-rw-r-- 1 root root 8.2K Jun 29 13:15 main-panel.html
I've read here on GitHub that the problem might be with gulp.dest() that doesn't read the file's metadata, and uses the user that runs the command.
Has anyone ever come across this and solved it?

Answer 1

It is a bug in vinyl-fs. When it writes a file to disk, it honors the file.stat.mode (where file is a vinyl File object) but it completely ignores the values of file.stat.uid and file.stat.gid.
It looks like it has been fixed in the code base of vinyl-fs but AFAIK there is no release yet that contains the fix.
Someone in the bug report you linked to mentions having cloned gulp-chown but I don't think that's necessary. I just change the file ownership after gulp.dest has done its work:
import gulp from "gulp";
import es from "event-stream";
import fs from "fs";
gulp.task("build",
() => gulp.src("src/**/*")
.pipe(gulp.dest("build"))
.pipe(es.map((file, callback) => {
fs.chown(file.path, file.stat.uid, file.stat.gid,
(err) => callback(err, file));
})));
You see I'm just using file.stat.uid and file.stat.gid. My goal is to preserve the ownership that the source file has. (Yeah, because vinyl-fs does not even do this by default.) You can just put any uid and gid you want there.