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ohmyzsh/plugins/sudo/sudo.plugin.zsh
2023-02-02 11:34:35 +01:00

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# ------------------------------------------------------------------------------
# Description
# -----------
#
# sudo or sudo -e (replacement for sudoedit) will be inserted before the command
#
# ------------------------------------------------------------------------------
# Authors
# -------
#
# * Dongweiming <ciici123@gmail.com>
# * Subhaditya Nath <github.com/subnut>
# * Marc Cornellà <github.com/mcornella>
# * Carlo Sala <carlosalag@protonmail.com>
#
# ------------------------------------------------------------------------------
__sudo-replace-buffer() {
local old=$1 new=$2 space=${2:+ }
# if the cursor is positioned in the $old part of the text, make
# the substitution and leave the cursor after the $new text
if [[ $CURSOR -le ${#old} ]]; then
BUFFER="${new}${space}${BUFFER#$old }"
CURSOR=${#new}
# otherwise just replace $old with $new in the text before the cursor
else
LBUFFER="${new}${space}${LBUFFER#$old }"
fi
}
sudo-command-line() {
# If line is empty, get the last run command from history
[[ -z $BUFFER ]] && LBUFFER="$(fc -ln -1)"
# Save beginning space
local WHITESPACE=""
if [[ ${LBUFFER:0:1} = " " ]]; then
WHITESPACE=" "
LBUFFER="${LBUFFER:1}"
fi
{
# If $SUDO_EDITOR or $VISUAL are defined, then use that as $EDITOR
# Else use the default $EDITOR
local EDITOR=${SUDO_EDITOR:-${VISUAL:-$EDITOR}}
# If $EDITOR is not set, just toggle the sudo prefix on and off
if [[ -z "$EDITOR" ]]; then
case "$BUFFER" in
sudo\ -e\ *) __sudo-replace-buffer "sudo -e" "" ;;
sudo\ *) __sudo-replace-buffer "sudo" "" ;;
*) LBUFFER="sudo $LBUFFER" ;;
esac
return
fi
# Check if the typed command is really an alias to $EDITOR
# Get the first part of the typed command
local cmd="${${(Az)BUFFER}[1]}"
# Get the first part of the alias of the same name as $cmd, or $cmd if no alias matches
local realcmd="${${(Az)aliases[$cmd]}[1]:-$cmd}"
# Get the first part of the $EDITOR command ($EDITOR may have arguments after it)
local editorcmd="${${(Az)EDITOR}[1]}"
# Note: ${var:c} makes a $PATH search and expands $var to the full path
# The if condition is met when:
# - $realcmd is '$EDITOR'
# - $realcmd is "cmd" and $EDITOR is "cmd"
# - $realcmd is "cmd" and $EDITOR is "cmd --with --arguments"
# - $realcmd is "/path/to/cmd" and $EDITOR is "cmd"
# - $realcmd is "/path/to/cmd" and $EDITOR is "/path/to/cmd"
# or
# - $realcmd is "cmd" and $EDITOR is "cmd"
# - $realcmd is "cmd" and $EDITOR is "/path/to/cmd"
# or
# - $realcmd is "cmd" and $EDITOR is /alternative/path/to/cmd that appears in $PATH
if [[ "$realcmd" = (\$EDITOR|$editorcmd|${editorcmd:c}) \
|| "${realcmd:c}" = ($editorcmd|${editorcmd:c}) ]] \
|| builtin which -a "$realcmd" | command grep -Fx -q "$editorcmd"; then
__sudo-replace-buffer "$cmd" "sudo -e"
return
fi
# Check for editor commands in the typed command and replace accordingly
case "$BUFFER" in
$editorcmd\ *) __sudo-replace-buffer "$editorcmd" "sudo -e" ;;
\$EDITOR\ *) __sudo-replace-buffer '$EDITOR' "sudo -e" ;;
sudo\ -e\ *) __sudo-replace-buffer "sudo -e" "$EDITOR" ;;
sudo\ *) __sudo-replace-buffer "sudo" "" ;;
*) LBUFFER="sudo $LBUFFER" ;;
esac
} always {
# Preserve beginning space
LBUFFER="${WHITESPACE}${LBUFFER}"
# Redisplay edit buffer (compatibility with zsh-syntax-highlighting)
zle && zle redisplay # only run redisplay if zle is enabled
}
}
zle -N sudo-command-line
# Defined shortcut keys: [Esc] [Esc]
bindkey -M emacs '\e\e' sudo-command-line
bindkey -M vicmd '\e\e' sudo-command-line
bindkey -M viins '\e\e' sudo-command-line