On Fri, Jun 18, 2010 at 9:37 PM, Allan McRae wrote:

On 19/06/10 09:51, Andres P wrote:

...

pacman -Qq output is always sorted!

No it is not...   it depends on your locale whether the order is correct for inputting into comm.

You're wrong, pacman -Qq output *is* always sorted according to LC_COLLATE=C. First I created a package called Kernel26, LC_COLLATE would put it untop since it gives priority to uppercase. en_US does not. $ exec 1>/dev/null $ LC_COLLATE=C comm <(LC_COLLATE=C pacman -Qq) \ <(LC_COLLATE=en_US.UTF-8 pacman -Qq) No errors... but one you use a program that respects LC_COLLATE: $ LC_COLLATE=C comm \ <(LC_COLLATE=C sort <<<$'a\nB\nc') \ <(LC_COLLATE=en_US.UTF-8 sort <<<$'a\nB\nc') comm: file 2 is not in sorted order $ LC_COLLATE=en_US.UTF-8 comm -3 \ <(LC_COLLATE=C sort <<<$'a\nB\nc') \ <(LC_COLLATE=en_US.UTF-8 sort <<<$'a\nB\nc') a comm: file 1 is not in sorted order So the solution is: * Treat the pacman bug as what it is, a separate bug. Since it *does* sort, just to the wrong LC_COLLATE. This is much cleaner than forking sort(1). * Or, simply change comm to LC_COLLATE=C and speed it up since this collation is always faster. Andres P

On Fri, Jun 18, 2010 at 10:48 PM, Allan McRae wrote:

...

So the solution is: * Treat the pacman bug as what it is, a separate bug. Since it *does* sort,   just to the wrong LC_COLLATE. This is much cleaner than forking sort(1).

* Or, simply change comm to LC_COLLATE=C and speed it up since this collation  is always faster.

Pick one and fix it.  Until then the sort stays.  If you pick the second, then it would be best to write a bug report about the first.

Allan

If it's one fix at a time, then there's time to think about solutions: There was an old bug in the the archlinux bugtracker involving the combination of LC_COLLATE and some UTF-8 locales in /etc/profile. This would be fixed with `LC_ALL comm`, yet all of makepkg would benefit from a `export LC_COLLATE=C` inline. Since I can't find the bug, I won't use LC_COLLATE yet. And wrt to pacman sorting or not... I was very clear in that pacman always sorts it's output, to which you replied. Andres P