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#
# Defines helper functions.
#
# Authors:
# Sorin Ionescu <sorin.ionescu@gmail.com>
#
# Checks a boolean variable for "true".
# Case insensitive: "1", "y", "yes", "t", "true", "o", and "on".
function is-true {
[[ -n "$1" && "$1" == (1|[Yy]([Ee][Ss]|)|[Tt]([Rr][Uu][Ee]|)|[Oo]([Nn]|)) ]]
}
# Checks a name if it is a command, function, or alias.
function is-callable {
(( $+commands[$1] )) || (( $+functions[$1] )) || (( $+aliases[$1] ))
}
# Prints the first non-empty string in the arguments array.
function coalesce {
for arg in $argv; do
print "$arg"
return 0
done
return 1
}
# Checks if a file can be autoloaded by trying to load it in a subshell.
function autoloadable {
( unfunction $1 ; autoload -U +X $1 ) &> /dev/null
}
# Loads Oh My Zsh modules.
function omodload {
local omodule
local ofunction
# Extended globbing is needed for autoloading of module functions.
setopt EXTENDED_GLOB
# Add functions to fpath.
fpath=(${argv:+${OMZ}/modules/${^argv}/functions(/FN)} $fpath)
# Load Oh My Zsh functions.
for ofunction in \
$OMZ/modules/${^argv}/functions/^([_.]*|prompt_*_setup|README*)(.N:t)
do
autoload -Uz "$ofunction"
done
# Extended globbing is no longer needed.
unsetopt EXTENDED_GLOB
for omodule in "$argv[@]"; do
if zstyle -t ":omz:module:$omodule" loaded; then
continue
elif [[ ! -d "$OMZ/modules/$omodule" ]]; then
print "$0: no such module: $omodule" >&2
continue
else
if [[ -f "$OMZ/modules/$omodule/init.zsh" ]]; then
source "$OMZ/modules/$omodule/init.zsh"
fi
if (( $? == 0 )); then
zstyle ":omz:module:$omodule" loaded 'yes'
else
zstyle ":omz:module:$omodule" loaded 'no'
fi
fi
done
}