TheCynicalLiger b74ec1cf8f
first commit
2021-01-09 17:30:42 +00:00

55 lines
2.2 KiB
Fish

function __sudope -d "Quickly toggle sudo prefix"
# Save the current command line and cursor position.
set -l command_buffer (commandline)
set -l cursor_position (commandline -C)
# If the command line is empty, pull the last command from history.
if test -z "$command_buffer"
set command_buffer $history[1]
end
# Parse the command line (first line only).
set -l command_parts (string match -ir '^(\s*)(sudo(\s+|$))?(.*)' $command_buffer[1])
# Handle multiline commands with extra care.
set -l command_lines_count (count $command_buffer)
test $command_lines_count -gt 1
and set -l command_rest $command_buffer[2..$command_lines_count]
switch (count $command_parts)
case 3
# No "sudo".
# Add "sudo" to the beginning of the command, after any leading whitespace (if present).
commandline -r (string join \n (string join '' $command_parts[2] 'sudo ' $command_parts[3]) $command_rest)
# Push the cursor position ahead if necessary (+5 for 'sudo ').
test $cursor_position -ge (string length -- "$command_parts[2]")
and set cursor_position (math $cursor_position+5)
# Place the cursor where it was (or where it should be).
commandline -C $cursor_position
case 5
# "sudo" is present in the beginning of the command.
# Remove "sudo", leave any leading whitespace (if present).
commandline -r (string join \n (string join '' $command_parts[2 5]) $command_rest)
# Push the cursor position back if appropriate ('sudo' and whitespace).
set -l lead_length (string length -- "$command_parts[2]")
set -l sudo_length (string length -- "$command_parts[3]")
if test $cursor_position -ge (math $lead_length+$sudo_length)
# The cursor was after "sudo".
set cursor_position (math $cursor_position-$sudo_length)
else if test $cursor_position -ge $lead_length
# The cursor was somewhere on "sudo".
set cursor_position $lead_length
end
# Place the cursor where it was (or where it should be).
commandline -C -- $cursor_position
end
end