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repos/robbyrussell/oh-my-zsh/lib/termsupport.zsh 2.98 KB
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  # Set terminal window and tab/icon title
  #
  # usage: title short_tab_title [long_window_title]
  #
  # See: http://www.faqs.org/docs/Linux-mini/Xterm-Title.html#ss3.1
  # Fully supports screen, iterm, and probably most modern xterm and rxvt
  # (In screen, only short_tab_title is used)
  # Limited support for Apple Terminal (Terminal can't set window and tab separately)
  function title {
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    emulate -L zsh
    setopt prompt_subst
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    [[ "$EMACS" == *term* ]] && return
  
    # if $2 is unset use $1 as default
    # if it is set and empty, leave it as is
    : ${2=$1}
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    case "$TERM" in
      cygwin|xterm*|putty*|rxvt*|ansi)
        print -Pn "\e]2;$2:q\a" # set window name
        print -Pn "\e]1;$1:q\a" # set tab name
        ;;
      screen*)
        print -Pn "\ek$1:q\e\\" # set screen hardstatus
        ;;
      *)
        if [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
          print -Pn "\e]2;$2:q\a" # set window name
          print -Pn "\e]1;$1:q\a" # set tab name
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        else
          # Try to use terminfo to set the title
          # If the feature is available set title
          if [[ -n "$terminfo[fsl]" ]] && [[ -n "$terminfo[tsl]" ]]; then
  	  echoti tsl
  	  print -Pn "$1"
  	  echoti fsl
  	fi
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        fi
        ;;
    esac
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  }
  
  ZSH_THEME_TERM_TAB_TITLE_IDLE="%15<..<%~%<<" #15 char left truncated PWD
  ZSH_THEME_TERM_TITLE_IDLE="%n@%m: %~"
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  # Avoid duplication of directory in terminals with independent dir display
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  if [[ "$TERM_PROGRAM" == Apple_Terminal ]]; then
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    ZSH_THEME_TERM_TITLE_IDLE="%n@%m"
  fi
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  # Runs before showing the prompt
  function omz_termsupport_precmd {
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    emulate -L zsh
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    if [[ "$DISABLE_AUTO_TITLE" == true ]]; then
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      return
    fi
  
    title $ZSH_THEME_TERM_TAB_TITLE_IDLE $ZSH_THEME_TERM_TITLE_IDLE
  }
  
  # Runs before executing the command
  function omz_termsupport_preexec {
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    emulate -L zsh
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    setopt extended_glob
  
    if [[ "$DISABLE_AUTO_TITLE" == true ]]; then
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      return
    fi
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    # cmd name only, or if this is sudo or ssh, the next cmd
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    local CMD=${1[(wr)^(*=*|sudo|ssh|mosh|rake|-*)]:gs/%/%%}
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    local LINE="${2:gs/%/%%}"
  
    title '$CMD' '%100>...>$LINE%<<'
  }
  
  precmd_functions+=(omz_termsupport_precmd)
  preexec_functions+=(omz_termsupport_preexec)
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  # Keep Apple Terminal.app's current working directory updated
  # Based on this answer: http://superuser.com/a/315029
  # With extra fixes to handle multibyte chars and non-UTF-8 locales
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  if [[ "$TERM_PROGRAM" == "Apple_Terminal" ]] && [[ -z "$INSIDE_EMACS" ]]; then
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    # Emits the control sequence to notify Terminal.app of the cwd
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    # Identifies the directory using a file: URI scheme, including
    # the host name to disambiguate local vs. remote paths.
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    function update_terminalapp_cwd() {
      emulate -L zsh
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      # Percent-encode the pathname.
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      local URL_PATH="$(omz_urlencode -P $PWD)"
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      [[ $? != 0 ]] && return 1
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      # Undocumented Terminal.app-specific control sequence
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      printf '\e]7;%s\a' "file://$HOST$URL_PATH"
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    }
  
    # Use a precmd hook instead of a chpwd hook to avoid contaminating output
    precmd_functions+=(update_terminalapp_cwd)
    # Run once to get initial cwd set
    update_terminalapp_cwd
  fi