On Wed, Jan 23, 2013 at 3:07 PM, Hilco Wijbenga <[email protected]> wrote: > On 23 January 2013 11:53, Michael Mol <[email protected]> wrote: >> On Wed, Jan 23, 2013 at 2:48 PM, Jarry <[email protected]> wrote: > <snip/> >>> emerge --update --deep --newuse world >>> emerge --update --deep --newuse system > <snip/> >>> So how can I update really *every* ebuild? >> >> And in answer...you've got it right. (Though I would use @world and/or >> @system, rather than leaving off the @) > > Why? While "@world" refers to the world set explicitly, it does > exactly the same as "world", doesn't it?. You could save a whole > character! ;-) More seriously, the @ character isn't easy to type so > I'd rather avoid it unless there is a real benefit to using it.
I don't know about your keyboard layout, but in en-us, @ is shift-2, which is pretty easy. And if you type cross-host email addresses at all (since the 80s, anyway), @ should come naturally. :) So, to answer 'why': 1. Newer versions of portage have broader support for sets. Using @ when talking about sets is useful for maintaining your understanding that you're working with sets. 2. While it may well never happen (unless portage drops support for resolving 'world' to mean '@world'), if there is ever a package named 'world', then "emerge world" when asking for the @world set will be ambiguous, and lead to surprising results. If you use apostrophes and punctuation in normal writing, a single @ in an infrequently-typed command shouldn't pose much of a problem. :) > > More to the point, doing "emerge ... system" *after* "emerge ... > world" seems pointless. World includes system so I would expect > everything in system to already have been updated. It would make more > sense to start with "emerge ... system" but even then: what is the > advantage over simply (only) running "emerge ... world"? That, I don't know. I usually just emerge -uDN @world, followed by emerge --depclean, followed by revdep-rebuild. And if I'm writing a script[1], I'll throw --resume in there somewhere. And maybe cycle it until everything comes out clean [1] https://github.com/mikemol/gentoo-install -- :wq
