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