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# localization: tier1
function edit_command_buffer --description 'Edit the command buffer in an external editor'
set -l tmpdir (__fish_mktemp_relative -d fish)
or return 1
set -l f $tmpdir/command-line.fish
command touch $f
or return 1
set -l editor (__fish_anyeditor)
or return 1
set -l indented_lines (commandline -b | fish_indent --only-indent)
string join -- \n $indented_lines >$f
set -l offset (commandline --cursor)
# compute cursor line/column
set -l lines (commandline)\n
set -l line 1
while test $offset -ge (string length -- $lines[1])
set offset (math $offset - (string length -- $lines[1]))
set line (math $line + 1)
set -e lines[1]
end
set -l indent 1 + (string length -- $indented_lines[$line]) - (string length -- $lines[1])
set -l col (math $offset + 1 + $indent)
set -l editor_basename (string match -r '[^/]+$' -- $editor[1])
set -l wrapped_commands
for wrap_target in (complete -- $editor_basename | string replace -rf '^complete [^/]+ --wraps (.+)$' '$1')
set -l tmp
string unescape -- $wrap_target | read -at tmp
set -a wrapped_commands $tmp[1]
end
set -l found false
set -l cursor_from_editor
for editor_command in $editor_basename $wrapped_commands
switch $editor_command
case vi vim nvim
if test $editor_command = vi && not set -l vi_version "$(vi --version 2>/dev/null)"
if printf %s $vi_version | grep -q BusyBox
break
end
set -a editor +{$line} $f
set found true
break
end
set cursor_from_editor (__fish_mktemp_relative fish-edit_command_buffer)
or return
set -a editor +$line "+norm! $col|" $f \
'+au VimLeave * ++once call writefile([printf("%s %s %s", shellescape(bufname()), line("."), col("."))], "'$cursor_from_editor'")'
case emacs emacsclient gedit
set -a editor +$line:$col $f
case kak
set cursor_from_editor (__fish_mktemp_relative fish-edit_command_buffer)
or return
set -a editor +$line:$col $f -e "
hook -always -once global ClientClose %val{client} %{
echo -to-file $cursor_from_editor -quoting shell \
%val{buffile} %val{cursor_line} %val{cursor_column}
}
"
case nano
set -a editor +$line,$col $f
case joe ee
set -a editor +$line $f
case code code-oss
set -a editor --goto $f:$line:$col --wait
case subl
set -a editor $f:$line:$col --wait
case micro
set -a editor $f +$line:$col
case helix hx
set -a editor $f:$line:$col
case '*'
continue
end
set found true
break
end
if not $found
set -a editor $f
end
$editor
set -l raw_lines (command cat $f)
set -l unindented_lines (string join -- \n $raw_lines | fish_indent --only-unindent)
# Here we're checking the exit status of the editor.
if test $status -eq 0 -a -s $f
# Set the command to the output of the edited command and move the cursor to the
# end of the edited command.
commandline -r -- $unindented_lines
commandline -C 999999
else
echo
echo (_ "Ignoring the output of your editor since its exit status was non-zero")
echo (_ "or the file was empty")
end
if set -q cursor_from_editor[1]
eval set -l pos "$(command cat $cursor_from_editor)"
if set -q pos[1] && test $pos[1] = $f
set -l line $pos[2]
set -l indent (math (string length -- "$raw_lines[$line]") - (string length -- "$unindented_lines[$line]"))
set -l column (math $pos[3] - $indent)
if not commandline --line $line 2>/dev/null
commandline -f end-of-buffer
else
commandline --column $column 2>/dev/null || commandline -f end-of-line
end
end
command rm $cursor_from_editor
end
command rm -r (path dirname $f)
# We've probably opened something that messed with the screen.
# A repaint seems in order.
commandline -f repaint
end
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