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200x faster "am i root?" check.

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Justin Hileman 2017-12-23 15:15:59 -08:00
parent 1562614484
commit 3d3690eb40
1 changed files with 8 additions and 2 deletions
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fish_prompt.fish
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@ -323,8 +323,14 @@ function __bobthefish_prompt_status -S -a last_status -d 'Display flags for a no
[ $last_status -ne 0 ]
and set nonzero $__bobthefish_nonzero_exit_glyph
# if superuser (uid == 0)
[ (id -u) -eq 0 ]
# If superuser (uid == 0)
#
# Note that iff the current user is root and '/' is not writeable by root this
# will be wrong. But I can't think of a single reason that would happen, and
# this way is 99.5% faster to check it this way, so that's a tradeoff I'm
# willing to make.
[ -w / ]
and [ (id -u) -eq 0 ]
and set superuser $__bobthefish_superuser_glyph
# Jobs display