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lib/helpers: fix `_command_exists()` 

The weird subshell is weird AF. Just do a normal `if`.

Ditto `_binary_exists()`, `_completion_exists()`, and `_is_function()`!
pull/2018/head
John D Pell 2022-01-04 13:48:23 -08:00 committed by John D Pell
parent 180fb93df8
commit 9b51dc0b5f
1 changed files with 53 additions and 45 deletions
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46
lib/helpers.bash
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@ -15,49 +15,49 @@ case "$OSTYPE" in
'darwin'*) BASH_IT_SED_I_PARAMETERS=(-i "")
esac
function _command_exists ()
{
function _command_exists() {
_about 'checks for existence of a command'
_param '1: command to check'
_param '2: (optional) log message to include when command not found'
_example '$ _command_exists ls && echo exists'
_group 'lib'
local msg="${2:-Command '$1' does not exist!}"
if type -t "$1" &> /dev/null
then
local msg="${2:-Command '$1' does not exist}"
if type -t "$1" > /dev/null; then
return 0
else
_log_warning "$msg"
_log_debug "$msg"
return 1
fi
}
function _binary_exists ()
{
function _binary_exists() {
_about 'checks for existence of a binary'
_param '1: binary to check'
_param '2: (optional) log message to include when binary not found'
_example '$ _binary_exists ls && echo exists'
_group 'lib'
local msg="${2:-Binary '$1' does not exist!}"
if type -P "$1" &> /dev/null
then
local msg="${2:-Binary '$1' does not exist}"
if type -P "$1" > /dev/null; then
return 0
else
_log_warning "$msg"
_log_debug "$msg"
return 1
fi
}
function _completion_exists ()
{
function _completion_exists() {
_about 'checks for existence of a completion'
_param '1: command to check'
_param '2: (optional) log message to include when completion is found'
_example '$ _completion_exists gh && echo exists'
_group 'lib'
local msg="${2:-Completion for '$1' already exists!}"
complete -p "$1" &> /dev/null && _log_warning "$msg" ;
local msg="${2:-Completion for '$1' already exists}"
if complete -p "$1" &> /dev/null; then
_log_debug "$msg"
return 0
else
return 1
fi
}
function _bash_it_homebrew_check()
@ -179,12 +179,20 @@ bash-it ()
fi
}
_is_function ()
{
function _is_function() {
_about 'sets $? to true if parameter is the name of a function'
_param '1: name of alleged function'
_param '2: (optional) log message to include when function not found'
_group 'lib'
[ -n "$(LANG=C type -t $1 2>/dev/null | grep 'function')" ]
_example '$ _is_function ls && echo exists'
_group 'lib'
local msg="${2:-Function '$1' does not exist}"
if LC_ALL=C type -t "$1" | _bash-it-egrep -q 'function'; then
return 0
else
_log_debug "$msg"
return 1
fi
}
_bash-it-aliases ()