Edit prompt in editor (C-x C-e) for bash, zsh and powershell

edit-prompt-in-editor.sh

# Bash
# Credits: https://unix.stackexchange.com/a/684760
# Difference with built-in one is that it won't run the
# command when closing the editor
__edit_command_no_execute () {
  local editor="${EDITOR:-vim}"
  local tmpf="$(mktemp)"
  printf '%s\n' "$READLINE_LINE" >| "$tmpf"
  "$editor" "$tmpf"
  READLINE_LINE="$(cat "$tmpf")"
  READLINE_POINT="${#READLINE_LINE}"
  rm -f "$tmpf" &> /dev/null
}
bind -m emacs       -x '"\C-o\C-e":__edit_command_no_execute'
bind -m vi          -x '"\C-o\C-e":__edit_command_no_execute'
bind -m vi-insert   -x '"\C-o\C-e":__edit_command_no_execute'


# Zsh
# Credits: https://gist.github.com/raven-rock/4fc8152f91eedf663755b65432f48ce5
autoload -U edit-command-line
zle -N edit-command-line
bindkey '^x^e' edit-command-line


# Powershell
Set-PSReadLineKeyHandler -Chord 'ctrl+o,ctrl+e' -ScriptBlock {
  $line = $cursor = $proc = $null
  $editorArgs = @()
  $editor = if ($env:EDITOR) { $env:EDITOR }
    else { 'vim' }
  try {
    $tmpf = New-TemporaryFile
    [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref] $line, [ref] $cursor)
    # If (n)vim, start at last line
    if ( $editor -Like '*vim' ) {
      $editorArgs += '+'
    }
    $line > $tmpf.FullName
    $editorArgs += $tmpf.FullName
    # Start editor and wait for it to close
    $proc = Start-Process $editor -NoNewWindow -PassThru -ArgumentList $editorArgs
    $proc.WaitForExit()
    $proc = $null
    [Microsoft.PowerShell.PSConsoleReadLine]::RevertLine()
    $content = (Get-Content -Path $tmpf.FullName -Raw -Encoding UTF8).Replace("`r","").Trim()
    [Microsoft.PowerShell.PSConsoleReadLine]::Insert($content)
    # If you want to execute command on file closed:
    # [Microsoft.PowerShell.PSConsoleReadLine]::AcceptLine()
  } finally {
    # Cleanup
    $proc = $null
    Remove-Item -Force $tmpf.FullName
  }
}