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shell integration: set some handy user vars by default

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Wez Furlong 2023-01-23 09:29:55 -07:00
parent 748cc67a18
commit d8ffbd6b31
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1 changed files with 52 additions and 0 deletions
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52
assets/shell-integration/wezterm.sh
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@ -11,6 +11,8 @@
# WEZTERM_SHELL_SKIP_ALL - disables all
# WEZTERM_SHELL_SKIP_SEMANTIC_ZONES - disables zones
# WEZTERM_SHELL_SKIP_CWD - disables OSC 7 cwd setting
# WEZTERM_SHELL_SKIP_USER_VARS - disable user vars that capture information
# about running programs
# shellcheck disable=SC2166
if [ -z "${BASH_VERSION}" -a -z "${ZSH_NAME}" ] ; then
@ -389,6 +391,21 @@ if [[ ! -n "$BLE_VERSION" ]]; then
__wezterm_install_bash_prexec
fi
# This functions emits an OSC 1337 sequencne to set a user var
# associated with the current terminal pane.
# It requires the `base64` utility to be available in the path.
__wezterm_set_user_var() {
if hash base64 2>/dev/null ; then
if [[ -z "${TMUX}" ]] ; then
printf "\033]1337;SetUserVar=%s=%s\007" "$1" `echo -n "$2" | base64`
else
# <https://github.com/tmux/tmux/wiki/FAQ#what-is-the-passthrough-escape-sequence-and-how-do-i-use-it>
# Note that you ALSO need to add "set -g allow-passthrough on" to your tmux.conf
printf "\033Ptmux;\033\033]1337;SetUserVar=%s=%s\007\033\\" "$1" `echo -n "$2" | base64`
fi
fi
}
# This function emits an OSC 7 sequence to inform the terminal
# of the current working directory. It prefers to use a helper
# command provided by wezterm if wezterm is installed, but falls
@ -439,6 +456,31 @@ function __wezterm_semantic_preexec() {
__wezterm_semantic_precmd_executing=1
}
__wezterm_user_vars_precmd() {
__wezterm_set_user_var "WEZTERM_PROG" ""
__wezterm_set_user_var "WEZTERM_USER" "$(id -un)"
# Indicate whether this pane is running inside tmux or not
if [[ -n "${TMUX}" ]] ; then
__wezterm_set_user_var "WEZTERM_IN_TMUX" "1"
else
__wezterm_set_user_var "WEZTERM_IN_TMUX" "0"
fi
# You may set WEZTERM_HOSTNAME to a name you want to use instead
# of calling out to the hostname executable on every prompt print.
if [[ -z "${WEZTERM_HOSTNAME}" ]] ; then
__wezterm_set_user_var "WEZTERM_HOST" "$(hostname)"
else
__wezterm_set_user_var "WEZTERM_HOST" "${WEZTERM_HOSTNAME}"
fi
}
__wezterm_user_vars_preexec() {
# Tell wezterm the full command that is being run
__wezterm_set_user_var "WEZTERM_PROG" "$1"
}
# Register the various functions; take care to perform osc7 after
# the semantic zones as we don't want to perturb the last command
# status before we've had a chance to report it to the terminal
@ -452,6 +494,16 @@ if [[ -z "${WEZTERM_SHELL_SKIP_SEMANTIC_ZONES}" ]]; then
fi
fi
if [[ -z "${WEZTERM_SHELL_SKIP_USER_VARS}" ]]; then
if [[ -n "$BLE_VERSION" ]]; then
blehook PRECMD+=__wezterm_user_vars_precmd
blehook PREEXEC+=__wezterm_user_vars_preexec
else
precmd_functions+=(__wezterm_user_vars_precmd)
preexec_functions+=(__wezterm_user_vars_preexec)
fi
fi
if [[ -z "${WEZTERM_SHELL_SKIP_CWD}" ]] ; then
if [[ -n "$BLE_VERSION" ]]; then
blehook PRECMD+=__wezterm_osc7