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feat(lib): send OSC 7 on directory change for more supported terminals (#9914)

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Previously this was only emitted on macOS with Apple's Terminal.app (and
compatible clones like iTerm2), but it is used by other terminal emulators
as well to obtain the actual current working directory wiht symlinks intact.
All non-supporting terminal emulators tested gracefully ignored this value,
so emit this on these as well in case they (or some other app masquarading
as them) add future support for this value.

Closes #9914

Co-authored-by: Marc Cornellà <hello@mcornella.com>
This commit is contained in:
Alexander Schlarb 2021-05-16 18:58:38 +02:00 committed by Marc Cornellà
parent 33aadeced0
commit 25c2c3a468
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1 changed files with 47 additions and 23 deletions
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52
lib/termsupport.zsh
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@ -109,28 +109,52 @@ if [[ -z "$INSIDE_EMACS" || "$INSIDE_EMACS" = vterm ]]; then
add-zsh-hook preexec omz_termsupport_preexec
fi
# Keep Apple Terminal.app's current working directory updated
# Based on this answer: https://superuser.com/a/315029
# With extra fixes to handle multibyte chars and non-UTF-8 locales
# Keep terminal emulator's current working directory correct,
# even if the current working directory path contains symbolic links
#
# References:
# - Apple's Terminal.app: https://superuser.com/a/315029
# - iTerm2: https://iterm2.com/documentation-escape-codes.html (iTerm2 Extension / CurrentDir+RemoteHost)
# - Konsole: https://bugs.kde.org/show_bug.cgi?id=327720#c1
# - libvte (gnome-terminal, mate-terminal, …): https://bugzilla.gnome.org/show_bug.cgi?id=675987#c14
# Apparently it had a bug before ~2012 were it would display the unknown OSC 7 code
#
# As of May 2021 mlterm, PuTTY, rxvt, screen, termux & xterm simply ignore the unknown OSC.
if [[ "$TERM_PROGRAM" == "Apple_Terminal" ]] && [[ -z "$INSIDE_EMACS" ]]; then
# Emits the control sequence to notify Terminal.app of the cwd
# Don't define the function if we're inside Emacs
if [[ -n "$INSIDE_EMACS" ]]; then
return
fi
# Don't define the function if we're in an unsupported terminal
case "$TERM" in
# all of these either process OSC 7 correctly or ignore entirely
xterm*|putty*|rxvt*|konsole*|mlterm*|alacritty|screen*|tmux*) ;;
contour*|foot*) ;;
*)
# Terminal.app and iTerm2 process OSC 7 correctly
case "$TERM_PROGRAM" in
Apple_Terminal|iTerm.app) ;;
*) return ;;
esac ;;
esac
# Emits the control sequence to notify many terminal emulators
# of the cwd
#
# Identifies the directory using a file: URI scheme, including
# the host name to disambiguate local vs. remote paths.
function update_terminalapp_cwd() {
emulate -L zsh
function omz_termsupport_cwd {
# Percent-encode the host and path names.
local URL_HOST URL_PATH
URL_HOST="$(omz_urlencode -P $HOST)" || return 1
URL_PATH="$(omz_urlencode -P $PWD)" || return 1
# Undocumented Terminal.app-specific control sequence
printf '\e]7;%s\a' "file://$URL_HOST$URL_PATH"
# common control sequence (OSC 7) to set current host and path
printf "\e]7;%s\a" "file://${URL_HOST}${URL_PATH}"
}
# Use a precmd hook instead of a chpwd hook to avoid contaminating output
add-zsh-hook precmd update_terminalapp_cwd
# Run once to get initial cwd set
update_terminalapp_cwd
fi
# i.e. when a script or function changes directory without `cd -q`, chpwd
# will be called the output may be swallowed by the script or function.
add-zsh-hook precmd omz_termsupport_cwd