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prezto/modules/terminal/init.zsh
Olaf Conradi 013668f484 Improve and simplify titling functions.
Multiplexer titles can be set independent of window and tab titles.
Add auto-title always option to have dynamic titling inside terminal
multiplexers. Setting auto-title to yes continues to ignore dynamic
titling inside terminal multiplexers.

This patch should not alter behavior under Apple terminals.
2017-04-04 22:27:13 -07:00

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#
# Sets terminal window and tab titles.
#
# Authors:
# Sorin Ionescu <sorin.ionescu@gmail.com>
# Olaf Conradi <olaf@conradi.org>
#
# Return if requirements are not found.
if [[ "$TERM" == (dumb|linux|*bsd*|eterm*) ]]; then
return 1
fi
# Sets the terminal window title.
function set-window-title {
local title_format{,ted}
zstyle -s ':prezto:module:terminal:window-title' format 'title_format' || title_format="%s"
zformat -f title_formatted "$title_format" "s:$argv"
printf '\e]2;%s\a' "${(V%)title_formatted}"
}
# Sets the terminal tab title.
function set-tab-title {
local title_format{,ted}
zstyle -s ':prezto:module:terminal:tab-title' format 'title_format' || title_format="%s"
zformat -f title_formatted "$title_format" "s:$argv"
printf '\e]1;%s\a' "${(V%)title_formatted}"
}
# Sets the terminal multiplexer tab title.
function set-multiplexer-title {
local title_format{,ted}
zstyle -s ':prezto:module:terminal:multiplexer-title' format 'title_format' || title_format="%s"
zformat -f title_formatted "$title_format" "s:$argv"
printf '\ek%s\e\\' "${(V%)title_formatted}"
}
# Sets the tab and window titles with a given command.
function _terminal-set-titles-with-command {
emulate -L zsh
setopt EXTENDED_GLOB
# Get the command name that is under job control.
if [[ "${2[(w)1]}" == (fg|%*)(\;|) ]]; then
# Get the job name, and, if missing, set it to the default %+.
local job_name="${${2[(wr)%*(\;|)]}:-%+}"
# Make a local copy for use in the subshell.
local -A jobtexts_from_parent_shell
jobtexts_from_parent_shell=(${(kv)jobtexts})
jobs "$job_name" 2>/dev/null > >(
read index discarded
# The index is already surrounded by brackets: [1].
_terminal-set-titles-with-command "${(e):-\$jobtexts_from_parent_shell$index}"
)
else
# Set the command name, or in the case of sudo or ssh, the next command.
local cmd="${${2[(wr)^(*=*|sudo|ssh|-*)]}:t}"
local truncated_cmd="${cmd/(#m)?(#c15,)/${MATCH[1,12]}...}"
unset MATCH
if [[ "$TERM" == screen* ]]; then
set-multiplexer-title "$truncated_cmd"
fi
set-tab-title "$truncated_cmd"
set-window-title "$cmd"
fi
}
# Sets the tab and window titles with a given path.
function _terminal-set-titles-with-path {
emulate -L zsh
setopt EXTENDED_GLOB
local absolute_path="${${1:a}:-$PWD}"
local abbreviated_path="${absolute_path/#$HOME/~}"
local truncated_path="${abbreviated_path/(#m)?(#c15,)/...${MATCH[-12,-1]}}"
unset MATCH
if [[ "$TERM" == screen* ]]; then
set-multiplexer-title "$truncated_path"
fi
set-tab-title "$truncated_path"
set-window-title "$abbreviated_path"
}
# Do not override precmd/preexec; append to the hook array.
autoload -Uz add-zsh-hook
# Set up the Apple Terminal.
if [[ "$TERM_PROGRAM" == 'Apple_Terminal' ]] \
&& ( ! [[ -n "$STY" || -n "$TMUX" || -n "$DVTM" ]] )
then
# Sets the Terminal.app current working directory before the prompt is
# displayed.
function _terminal-set-terminal-app-proxy-icon {
printf '\e]7;%s\a' "file://${HOST}${PWD// /%20}"
}
add-zsh-hook precmd _terminal-set-terminal-app-proxy-icon
# Unsets the Terminal.app current working directory when a terminal
# multiplexer or remote connection is started since it can no longer be
# updated, and it becomes confusing when the directory displayed in the title
# bar is no longer synchronized with real current working directory.
function _terminal-unset-terminal-app-proxy-icon {
if [[ "${2[(w)1]:t}" == (screen|tmux|dvtm|ssh|mosh) ]]; then
print '\e]7;\a'
fi
}
add-zsh-hook preexec _terminal-unset-terminal-app-proxy-icon
# Do not set the tab and window titles in Terminal.app since it sets the tab
# title to the currently running process by default and the current working
# directory is set separately.
return
fi
# Set up non-Apple terminals.
if zstyle -t ':prezto:module:terminal' auto-title 'always' \
|| (zstyle -t ':prezto:module:terminal' auto-title \
&& ( ! [[ -n "$STY" || -n "$TMUX" ]] ))
then
# Sets titles before the prompt is displayed.
add-zsh-hook precmd _terminal-set-titles-with-path
# Sets titles before command execution.
add-zsh-hook preexec _terminal-set-titles-with-command
fi