51 lines
1.3 KiB
Bash
51 lines
1.3 KiB
Bash
|
# Checks if a file can be autoloaded by trying to load it in a subshell.
|
||
|
|
function autoloadable() {
|
||
|
|
( unfunction $1 ; autoload -U +X $1 ) &> /dev/null
|
||
|
|
}
|
||
|
|
|
||
|
|
# Checks boolean variable for "true" (case insensitive "1", "y", "yes", "t", "true", "o", and "on").
|
||
|
|
function check-bool {
|
||
|
|
[[ -n "$1" && "$1" == (1|[Yy]([Ee][Ss]|)|[Tt]([Rr][Uu][Ee]|)|[Oo]([Nn]|)) ]]
|
||
|
|
}
|
||
|
|
|
||
|
|
# Trap signals were generated with 'kill -l'.
|
||
|
|
# DEBUG, EXIT, and ZERR are ZSH signals.
|
||
|
|
TRAP_SIGNALS=(
|
||
|
|
ABRT ALRM BUS CHLD CONT EMT FPE HUP ILL INFO INT IO KILL PIPE PROF QUIT
|
||
|
|
SEGV STOP SYS TERM TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ
|
||
|
|
DEBUG EXIT ZERR
|
||
|
|
)
|
||
|
|
|
||
|
|
# Adds a function to a list to be called when a trap is triggered.
|
||
|
|
function add-zsh-trap {
|
||
|
|
if (( $# < 2 )); then
|
||
|
|
echo "Usage: $0 type function"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [[ -z "$TRAP_SIGNALS[(r)$1]" ]]; then
|
||
|
|
echo "$0: unknown signal: $1"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
local trap_functions="TRAP${1}_FUNCTIONS"
|
||
|
|
if (( ! ${(P)+trap_functions} )); then
|
||
|
|
typeset -gaU "$trap_functions"
|
||
|
|
fi
|
||
|
|
eval "$trap_functions+="$2""
|
||
|
|
|
||
|
|
if (( ! $+functions[TRAP${1}] )); then
|
||
|
|
eval "
|
||
|
|
function TRAP${1}() {
|
||
|
|
for trap_function in \"\$TRAP${1}_FUNCTIONS[@]\"; do
|
||
|
|
if (( \$+functions[\$trap_function] )); then
|
||
|
|
\"\$trap_function\" \"\$1\"
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
return \$(( 128 + \$1 ))
|
||
|
|
}
|
||
|
|
"
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|