Migrate away from gulp-util

[phated]

gulp-util is deprecated and is gigantic. This reduces size of package download and fixes some out-of-date dependency problems.

[demurgos]

@hzoo @sindresorhus
Could you merge and publish this PR?

[demurgos]

Pinging this PR: gulp-babel is one of the most popular Gulp plugins, it is important to keep its dependencies up to date.

[phated]

@hzoo is this module unmaintained? Would you be willing to hand it off to another maintainer?

[ghost]

@phated
fyi,
https://twitter.com/left_pad/status/938041651452416004

[phated]

@pgnd thanks, that's why I suggested someone else take this. The gulp ecosystem needs this maintained (it's the most downloaded plugin).

[hzoo]

@phated I can give you merge/publish if you want but I think we'd also probably want to backport to 6.x for this to be effective for the current users? (ok done so you can merge/publish)

Don't know if it's confusing but there is the current 6.x release line, 7.0.0 which uses babel-core with a peerDep and then v8.0.0-beta.0 which uses @babel/core. I would probably find the last 6.x commit and make a 6.x branch and then publish a similar patch from there.

v7 is still in beta and we weren't sure we were going to use scoped packages so that's why the different versions. Maybe there is an argument for just doing a 7.0.1 patch for @babel/core so it seems like the same version but it's non semver.

[phated]

@hzoo thanks! It's probably better to give @demurgos permissions since he is leading the ecosystem migration

[demurgos]

@hzoo
I am not very familiar with babel so I may not be able to fix issues depending on the details of babel, but I'd be happy to help with maintenance regarding the gulp parts.

Edit: Thanks for the invite. I'll try to find some time this week to work on this.

[demurgos]

Merged.
I'll backport this update to the releases 7.x and 6.x, clean-up a few things and push it to npm.

[demurgos]

All the versions were published to npm:

• 6.1.3
• 7.0.1
• 8.0.0-beta.1