fish-shell/share/functions/man.fish
Fabian Homborg 5814b1b8e2 Fix man function for NetBSD
NetBSD's man is unusual in that it doesn't understand an empty
$MANPATH component as "the system man path", and doesn't have a
`manpath` or `man --path`.

It has a `-m` option that would be useful, but other mans also have a
`-m` option that isn't, so detecting it is tough.

It does have a `-p` option that almost does what one would want here,
so we hack around it to make things work.

Fixes #5657.

[ci skip]
2019-02-14 10:57:38 +01:00

40 lines
1.6 KiB
Fish

if not command -qs man
# see #5329 and discussion at https://github.com/fish-shell/fish-shell/commit/13e025bdb01cc4dd08463ec497a0a3495873702f
exit
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.
# 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 set -l p (command man -p 2>/dev/null)
# NetBSD's man uses "-p" to print the path.
# FreeBSD's man also has a "-p" option, but that requires an argument.
# Other mans (men?) don't seem to have it.
#
# Unfortunately NetBSD prints things like "/usr/share/man/man1",
# while not allowing them as $MANPATH components.
# What it needs is just "/usr/share/man".
#
# So we strip the last component.
# This leaves a few wrong directories, but that should be harmless.
set manpath (string replace -r '[^/]+$' '' $p)
else
set manpath ''
end
# Notice the shadowing local exported copy of the variable.
set -lx MANPATH $manpath
# Prepend fish's man directory if available.
set -l fish_manpath (dirname $__fish_data_dir)/fish/man
if test -d $fish_manpath
set MANPATH $fish_manpath $MANPATH
end
command man $argv
end