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function __fish_umask_parse -d "Internal umask function"
# Test if already a valid octal mask, and pad it with zeros
if echo $argv | __fish_sgrep -E '^0?[0-7]{1,3}$' >/dev/null
set -l char_count (echo $argv| wc -c)
for i in (seq (math 5 - $char_count)); set argv 0$argv; end
echo $argv
else
# Test if argument really is a valid symbolic mask
if not echo $argv | __fish_sgrep -E '^(((u|g|o|a|)(=|\+|-)|)(r|w|x)*)(,(((u|g|o|a|)(=|\+|-)|)(r|w|x)*))*$' >/dev/null
printf (_ "%s: Invalid mask '%s'\n") umask $argv >&2
return 1
end
set -l implicit_all
# Insert inverted umask into res variable
set -l mode
set -l val
set -l tmp $umask
set -l res
for i in 1 2 3
set tmp (echo $tmp|cut -c 2-)
set -l char_count (echo $tmp|cut -c 1)
set res[$i] (math 7 - $char_count)
end
set -l el (echo $argv|tr , \n)
for i in $el
switch $i
case 'u*'
set idx 1
set i (echo $i| cut -c 2-)
case 'g*'
set idx 2
set i (echo $i| cut -c 2-)
case 'o*'
set idx 3
set i (echo $i| cut -c 2-)
case 'a*'
set idx 1 2 3
set i (echo $i| cut -c 2-)
case '*'
set implicit_all 1
set idx 1 2 3
end
switch $i
case '=*'
set mode set
set i (echo $i| cut -c 2-)
case '+*'
set mode add
set i (echo $i| cut -c 2-)
case '-*'
set mode remove
set i (echo $i| cut -c 2-)
case '*'
if not count $implicit_all >/dev/null
printf (_ "%s: Invalid mask '%s'\n") umask $argv >&2
return
end
set mode set
end
if not echo $perm| __fish_sgrep -E '^(r|w|x)*$' >/dev/null
printf (_ "%s: Invalid mask '%s'\n") umask $argv >&2
return
end
set val 0
if echo $i | __fish_sgrep 'r' >/dev/null
set val 4
end
if echo $i | __fish_sgrep 'w' >/dev/null
set val (math $val + 2)
end
if echo $i | __fish_sgrep 'x' >/dev/null
set val (math $val + 1)
end
for j in $idx
switch $mode
case set
set res[$j] $val
case add
set res[$j] (perl -e 'print( ( '$res[$j]'|'$val[$j]' )."\n" )')
case remove
set res[$j] (perl -e 'print( ( (7-'$res[$j]')&'$val[$j]' )."\n" )')
end
end
end
for i in 1 2 3
set res[$i] (math 7 - $res[$i])
end
echo 0$res[1]$res[2]$res[3]
end
end
function __fish_umask_print_symbolic
set -l res ""
set -l letter a u g o
for i in 2 3 4
set res $res,$letter[$i]=
set val (echo $umask|cut -c $i)
if contains $val 0 1 2 3
set res {$res}r
end
if contains $val 0 1 4 5
set res {$res}w
end
if contains $val 0 2 4 6
set res {$res}x
end
end
echo $res|cut -c 2-
end
function umask --description "Set default file permission mask"
set -l as_command 0
set -l symbolic 0
set -l options
set -l shortopt pSh
if not getopt -T >/dev/null
# GNU getopt
set longopt -l as-command,symbolic,help
set options -o $shortopt $longopt --
# Verify options
if not getopt -n umask $options $argv >/dev/null
return 1
end
else
# Old getopt, used on OS X
set options $shortopt
# Verify options
if not getopt $options $argv >/dev/null
return 1
end
end
set -l tmp (getopt $options $argv)
eval set opt $tmp
while count $opt >/dev/null
switch $opt[1]
case -h --help
__fish_print_help umask
return 0
case -p --as-command
set as_command 1
case -S --symbolic
set symbolic 1
case --
set -e opt[1]
break
end
set -e opt[1]
end
switch (count $opt)
case 0
if not set -q umask
set -g umask 113
end
if test $as_command -eq 1
echo umask $umask
else
if test $symbolic -eq 1
__fish_umask_print_symbolic $umask
else
echo $umask
end
end
case 1
set -l parsed (__fish_umask_parse $opt)
if test (count $parsed) -eq 1
set -g umask $parsed
return 0
end
return 1
case '*'
printf (_ '%s: Too many arguments\n') umask >&2
end
end
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