#5852: The detection of SAGE_ROOT in $SAGE_ROOT/sage and local/bin/sage-env
should
expand symlinks recursively
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Reporter: tornaria | Owner: jdemeyer
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.7.2
Component: distribution | Resolution:
Keywords: | Work_issues:
Upstream: N/A | Reviewer:
Author: Jeroen Demeyer | Merged:
Dependencies: |
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Comment(by leif):
Replying to [comment:20 jdemeyer]:
> I also noticed that `data/extcode/sage/ext/mac-app/start-sage.sh` has
its own `SAGE_ROOT`-detecting code but it probably shouldn't and should
use `sage-env` instead.
It seems the MacOS X app wants just the opposite, i.e. to '''not'''
resolve symbolic links, since the absolute, canonicalized path may
frequently change.
Therefore it always creates (on start-up) the same, "constant" symbolic
link from `/tmp/sage-mac-app` to the current, volatile `$SAGE_ROOT`, which
can only work if the application is also actually ''always'' built in (a
real directory) `/tmp/sage-mac-app/` (such that no change of hardcoded
paths is necessary).
Cf. #11755. In that case, the app should also define some special
environment variable, such that `sage-env` (and perhaps also `sage`) can
treat this specifically, namely not canonicalize `$SAGE_ROOT`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5852#comment:25>
Sage <http://www.sagemath.org>
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