#4949: Optionally build spkgs in $SAGE_BUILD_TMPDIR
-------------------------------------------------------------+--------------
Reporter: mabshoff | Owner:
mabshoff
Type: enhancement | Status:
needs_info
Priority: minor | Milestone:
sage-5.0
Component: build | Keywords:
sd32
Work_issues: | Upstream:
N/A
Reviewer: Mariah Lenox, Leif Leonhardy, Maarten Derickx | Author:
John Palmieri
Merged: | Dependencies:
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Comment(by drkirkby):
Replying to [comment:42 jhpalmieri]:
> Replying to [comment:41 jdemeyer]:
> > I ask you again: why???
>
> It feels cleaner to me: if I set `$SAGE_BUILD_TMPDIR=/tmp`, then rather
than producing many subdirectories of `tmp`, everything will live in
`/tmp/build`. It's easier to clean up by hand, and `make clean` is easier
to implement this way; otherwise, I suppose it would have to delete
`/tmp/atlas-3.8.4.p1/`, `/tmp/blas-...`, etc. Or `make clean` could not
modify SAGE_BUILD_TMPDIR at all, but the Make manual suggests that `make
clean` (and `make distclean`) should "Also delete files in other
directories if they are created by this makefile."
John,
how do you avoid a possible race condition if two or more instances of
Sage (or some other program), want to use /tmp/build? Perhaps /tmp/$user-
sage-$SageVersion.$$ might be better. Someone can then find their own
Sage-related files easily (for example
{{{
rm -rf /tmp/drkirkby-sage-4.5.6*
}}}
without risk of their being any race condition.
Dave
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4949#comment:47>
Sage <http://www.sagemath.org>
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