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convert isatty to use argparse

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This commit is contained in:
Kurtis Rader 2017-07-09 16:12:13 -07:00
parent 3c4e3035fd
commit 5cf2a50269
1 changed files with 21 additions and 20 deletions
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41
share/functions/isatty.fish
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@ -1,30 +1,31 @@
function isatty -d "Tests if a file descriptor is a tty"
set -l fd 0
if count $argv >/dev/null
switch $argv[1]
set -l options 'h/help'
argparse $options -- $argv
or return
case -h --h --he --hel --help
__fish_print_help isatty
return 0
if set -q _flag_help
__fish_print_help isatty
return 0
end
case stdin ''
set fd 0
if set -q argv[2]
printf (_ "%s: Too many arguments") isatty >&2
return 1
end
case stdout
set fd 1
case stderr
set fd 2
case '*'
set fd $argv[1]
end
set -l fd
switch "$argv"
case stdin ''
set fd 0
case stdout
set fd 1
case stderr
set fd 2
case '*'
set fd $argv[1]
end
# Use `command test` because `builtin test` doesn't open the regular fd's.
# See https://github.com/fish-shell/fish-shell/issues/1228
command test -t "$fd"
end