yarn support about hexo-cli

[NoahDragon]

It's doable. Do you know if there is any function or package could easily check if an global package exists?

[DanielFGray]

I would think it's better to test whether an actual command is available rather than a global package, since it's heavily recommended to avoid installing yarn with npm.

command-exists seems to do that

[NoahDragon]

Cool, thanks.

[NoahDragon]

The fix is in PR #20, could you please take a look and test it?

[DanielFGray]

this still seems to use npm :\

if you haven't tried yarn I highly recommend it. it's much faster than npm, gives you an offline cache to install from, and (this is a bit silly but it's so nice) instead of having to do things like ./node_modules/.bin/foocmd files in that dir are available as yarn foocmd