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Slightly restructure man.fish for clarity

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man.fish can be clarified a bit, by removing a superfluous early return. Additionally, performance can be
(ever so slightly) improved, by using the empty string to suffix an extra colon when `$MANPATH` is empty, as
described in `manpath(1)`. As `man` will internally call `manpath` as it starts, this eliminates a redundancy.
This commit is contained in:
Bjorn Neergaard 2018-11-27 12:17:18 -07:00 committed by Fabian Homborg
parent 2713265b01
commit 958e46882f
1 changed files with 9 additions and 11 deletions
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20
share/functions/man.fish
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@ -6,25 +6,23 @@ end
function man --description "Format and display the on-line manual pages"
# Work around the "builtin" manpage that everything symlinks to,
# by prepending our fish datadir to man. This also ensures that man gives fish's
# man pages priority, without having to put fish's bin directories first in $PATH
# man pages priority, without having to put fish's bin directories first in $PATH.
# Preserve the existing MANPATH, and default to the system path (the empty string).
set -l manpath
if set -q MANPATH
set manpath $MANPATH
else if command -qs manpath
set manpath (command manpath)
else
set manpath ''
end
# Notice local exported copy of the variable.
# Notice the shadowing local exported copy of the variable.
set -lx MANPATH $manpath
set -l fish_manpath (dirname $__fish_data_dir)/fish/man
if test -d "$fish_manpath" -a -n "$MANPATH"
set MANPATH $fish_manpath:$MANPATH
# Invoke man with this manpath, and we're done.
command man $argv
return
# Prepend fish's man directory if available.
set -l fish_manpath (dirname $__fish_datadir)/fish/man
if test -d $fish_manpath
set MANPATH $fish_manpath $MANPATH
end
# If fish's man pages could not be found, just invoke man normally
command man $argv
end