Yarn: use the preset location for cache and global bin

[chawyehsu]

It should be a better way, I think.
(this will break previous presist.)

[brandon93s]

Are these changes addressing an issue you're experiencing with yarn?

(this will break previous presist.)

It will also break all currently installed global applications. This manifest was just updated to fix global installs with f783c38. This will also move the yarn cache and shims out of scoop and into the users localappdata. For predictability, I think I prefer them to live within the persist dir.

[chawyehsu]

Cuz I found that those real global bin, more specifically, all global installed node modules are still store within %LOCALAPPDATA%, in %LOCALAPPDATA%\\Yarn\\config\\global, though we relocate bin and cache directories into scoop.

e.g.: ~\scoop\persist\yarn\bin\gulp.cmd

@"%~dp0\..\..\..\..\..\AppData\Local\Yarn\config\global\node_modules\.bin\gulp.cmd"   %*

Yarn keeps adding stuff to %APPDATA% anyway, so there is no real benefit for adding persistence to bin and cache.
—— @r15ch13

It's a little tricky that we seperate cache and global bin from the actual config things to let scoop can presist them for us to use global applications. Now for that, we can just add %LOCALAPPDATA%\\Yarn\\bin, the default directory of shims of Yarn, to PATH. Keep its original feature, and simpler, compared to current workaround which relies on ~\.yarnrc.

Looks like I'm SO OCD. Lol.

[oltolm]

I have created a bucket for nonportable apps. It has a manifest for Node where I did something similar, so that npm stores its packages in APPDATA\npm instead of the nonstandard scoop\persist directory.