feat: finish ghostty pane backend integration

2 files changed, 706 insertions, 0 deletions

diff --git a/vendor/libghostty-vt/src/shell-integration/bash/bash-preexec.sh b/vendor/libghostty-vt/src/shell-integration/bash/bash-preexec.sh
new file mode 100644
index 00000000..f20ece17
--- /dev/null
+++ b/vendor/libghostty-vt/src/shell-integration/bash/bash-preexec.sh
@@ -0,0 +1,382 @@
+# bash-preexec.sh -- Bash support for ZSH-like 'preexec' and 'precmd' functions.
+# https://github.com/rcaloras/bash-preexec
+#
+#
+# 'preexec' functions are executed before each interactive command is
+# executed, with the interactive command as its argument. The 'precmd'
+# function is executed before each prompt is displayed.
+#
+# Author: Ryan Caloras (ryan@bashhub.com)
+# Forked from Original Author: Glyph Lefkowitz
+#
+# V0.6.0
+#
+
+# General Usage:
+#
+#  1. Source this file at the end of your bash profile so as not to interfere
+#     with anything else that's using PROMPT_COMMAND.
+#
+#  2. Add any precmd or preexec functions by appending them to their arrays:
+#       e.g.
+#       precmd_functions+=(my_precmd_function)
+#       precmd_functions+=(some_other_precmd_function)
+#
+#       preexec_functions+=(my_preexec_function)
+#
+#  3. Consider changing anything using the DEBUG trap or PROMPT_COMMAND
+#     to use preexec and precmd instead. Preexisting usages will be
+#     preserved, but doing so manually may be less surprising.
+#
+#  Note: This module requires two Bash features which you must not otherwise be
+#  using: the "DEBUG" trap, and the "PROMPT_COMMAND" variable. If you override
+#  either of these after bash-preexec has been installed it will most likely break.
+
+# Tell shellcheck what kind of file this is.
+# shellcheck shell=bash
+
+# Make sure this is bash that's running and return otherwise.
+# Use POSIX syntax for this line:
+if [ -z "${BASH_VERSION-}" ]; then
+    return 1
+fi
+
+# We only support Bash 3.1+.
+# Note: BASH_VERSINFO is first available in Bash-2.0.
+if [[ -z "${BASH_VERSINFO-}" ]] || (( BASH_VERSINFO[0] < 3 || (BASH_VERSINFO[0] == 3 && BASH_VERSINFO[1] < 1) )); then
+    return 1
+fi
+
+# Avoid duplicate inclusion
+if [[ -n "${bash_preexec_imported:-}" || -n "${__bp_imported:-}" ]]; then
+    return 0
+fi
+bash_preexec_imported="defined"
+
+# WARNING: This variable is no longer used and should not be relied upon.
+# Use ${bash_preexec_imported} instead.
+# shellcheck disable=SC2034
+__bp_imported="${bash_preexec_imported}"
+
+# Should be available to each precmd and preexec
+# functions, should they want it. $? and $_ are available as $? and $_, but
+# $PIPESTATUS is available only in a copy, $BP_PIPESTATUS.
+# TODO: Figure out how to restore PIPESTATUS before each precmd or preexec
+# function.
+__bp_last_ret_value="$?"
+BP_PIPESTATUS=("${PIPESTATUS[@]}")
+__bp_last_argument_prev_command="$_"
+
+__bp_inside_precmd=0
+__bp_inside_preexec=0
+
+# Initial PROMPT_COMMAND string that is removed from PROMPT_COMMAND post __bp_install
+__bp_install_string=$'__bp_trap_string="$(trap -p DEBUG)"\ntrap - DEBUG\n__bp_install'
+
+# Fails if any of the given variables are readonly
+# Reference https://stackoverflow.com/a/4441178
+__bp_require_not_readonly() {
+    local var
+    for var; do
+        if ! ( unset "$var" 2> /dev/null ); then
+            echo "bash-preexec requires write access to ${var}" >&2
+            return 1
+        fi
+    done
+}
+
+# Remove ignorespace and or replace ignoreboth from HISTCONTROL
+# so we can accurately invoke preexec with a command from our
+# history even if it starts with a space.
+__bp_adjust_histcontrol() {
+    local histcontrol
+    histcontrol="${HISTCONTROL:-}"
+    histcontrol="${histcontrol//ignorespace}"
+    # Replace ignoreboth with ignoredups
+    if [[ "$histcontrol" == *"ignoreboth"* ]]; then
+        histcontrol="ignoredups:${histcontrol//ignoreboth}"
+    fi
+    export HISTCONTROL="$histcontrol"
+}
+
+# This variable describes whether we are currently in "interactive mode";
+# i.e. whether this shell has just executed a prompt and is waiting for user
+# input.  It documents whether the current command invoked by the trace hook is
+# run interactively by the user; it's set immediately after the prompt hook,
+# and unset as soon as the trace hook is run.
+__bp_preexec_interactive_mode=""
+
+# These arrays are used to add functions to be run before, or after, prompts.
+declare -a precmd_functions
+declare -a preexec_functions
+
+# Trims leading and trailing whitespace from $2 and writes it to the variable
+# name passed as $1
+__bp_trim_whitespace() {
+    local var=${1:?} text=${2:-}
+    text="${text#"${text%%[![:space:]]*}"}"   # remove leading whitespace characters
+    text="${text%"${text##*[![:space:]]}"}"   # remove trailing whitespace characters
+    printf -v "$var" '%s' "$text"
+}
+
+
+# Trims whitespace and removes any leading or trailing semicolons from $2 and
+# writes the resulting string to the variable name passed as $1. Used for
+# manipulating substrings in PROMPT_COMMAND
+__bp_sanitize_string() {
+    local var=${1:?} text=${2:-} sanitized
+    __bp_trim_whitespace sanitized "$text"
+    sanitized=${sanitized%;}
+    sanitized=${sanitized#;}
+    __bp_trim_whitespace sanitized "$sanitized"
+    printf -v "$var" '%s' "$sanitized"
+}
+
+# This function is installed as part of the PROMPT_COMMAND;
+# It sets a variable to indicate that the prompt was just displayed,
+# to allow the DEBUG trap to know that the next command is likely interactive.
+__bp_interactive_mode() {
+    __bp_preexec_interactive_mode="on"
+}
+
+
+# This function is installed as part of the PROMPT_COMMAND.
+# It will invoke any functions defined in the precmd_functions array.
+__bp_precmd_invoke_cmd() {
+    # Save the returned value from our last command, and from each process in
+    # its pipeline. Note: this MUST be the first thing done in this function.
+    # BP_PIPESTATUS may be unused, ignore
+    # shellcheck disable=SC2034
+
+    __bp_last_ret_value="$?" BP_PIPESTATUS=("${PIPESTATUS[@]}")
+
+    # Don't invoke precmds if we are inside an execution of an "original
+    # prompt command" by another precmd execution loop. This avoids infinite
+    # recursion.
+    if (( __bp_inside_precmd > 0 )); then
+        return
+    fi
+    local __bp_inside_precmd=1
+
+    # Invoke every function defined in our function array.
+    local precmd_function
+    for precmd_function in "${precmd_functions[@]}"; do
+
+        # Only execute this function if it actually exists.
+        # Test existence of functions with: declare -[Ff]
+        if type -t "$precmd_function" 1>/dev/null; then
+            __bp_set_ret_value "$__bp_last_ret_value" "$__bp_last_argument_prev_command"
+            # Quote our function invocation to prevent issues with IFS
+            "$precmd_function"
+        fi
+    done
+
+    __bp_set_ret_value "$__bp_last_ret_value"
+}
+
+# Sets a return value in $?. We may want to get access to the $? variable in our
+# precmd functions. This is available for instance in zsh. We can simulate it in bash
+# by setting the value here.
+__bp_set_ret_value() {
+    return ${1:+"$1"}
+}
+
+__bp_in_prompt_command() {
+
+    local prompt_command_array IFS=$'\n;'
+    read -rd '' -a prompt_command_array <<< "${PROMPT_COMMAND[*]:-}"
+
+    local trimmed_arg
+    __bp_trim_whitespace trimmed_arg "${1:-}"
+
+    local command trimmed_command
+    for command in "${prompt_command_array[@]:-}"; do
+        __bp_trim_whitespace trimmed_command "$command"
+        if [[ "$trimmed_command" == "$trimmed_arg" ]]; then
+            return 0
+        fi
+    done
+
+    return 1
+}
+
+# This function is installed as the DEBUG trap.  It is invoked before each
+# interactive prompt display.  Its purpose is to inspect the current
+# environment to attempt to detect if the current command is being invoked
+# interactively, and invoke 'preexec' if so.
+__bp_preexec_invoke_exec() {
+
+    # Save the contents of $_ so that it can be restored later on.
+    # https://stackoverflow.com/questions/40944532/bash-preserve-in-a-debug-trap#40944702
+    __bp_last_argument_prev_command="${1:-}"
+    # Don't invoke preexecs if we are inside of another preexec.
+    if (( __bp_inside_preexec > 0 )); then
+        return
+    fi
+    local __bp_inside_preexec=1
+
+    # Checks if the file descriptor is not standard out (i.e. '1')
+    # __bp_delay_install checks if we're in test. Needed for bats to run.
+    # Prevents preexec from being invoked for functions in PS1
+    if [[ ! -t 1 && -z "${__bp_delay_install:-}" ]]; then
+        return
+    fi
+
+    if [[ -n "${COMP_POINT:-}" || -n "${READLINE_POINT:-}" ]]; then
+        # We're in the middle of a completer or a keybinding set up by "bind
+        # -x".  This obviously can't be an interactively issued command.
+        return
+    fi
+    if [[ -z "${__bp_preexec_interactive_mode:-}" ]]; then
+        # We're doing something related to displaying the prompt.  Let the
+        # prompt set the title instead of me.
+        return
+    else
+        # If we're in a subshell, then the prompt won't be re-displayed to put
+        # us back into interactive mode, so let's not set the variable back.
+        # In other words, if you have a subshell like
+        #   (sleep 1; sleep 2)
+        # You want to see the 'sleep 2' as a set_command_title as well.
+        if [[ 0 -eq "${BASH_SUBSHELL:-}" ]]; then
+            __bp_preexec_interactive_mode=""
+        fi
+    fi
+
+    if  __bp_in_prompt_command "${BASH_COMMAND:-}"; then
+        # If we're executing something inside our prompt_command then we don't
+        # want to call preexec. Bash prior to 3.1 can't detect this at all :/
+        __bp_preexec_interactive_mode=""
+        return
+    fi
+
+    local this_command
+    this_command=$(LC_ALL=C HISTTIMEFORMAT='' builtin history 1)
+    this_command="${this_command#*[[:digit:]][* ] }"
+
+    # Sanity check to make sure we have something to invoke our function with.
+    if [[ -z "$this_command" ]]; then
+        return
+    fi
+
+    # Invoke every function defined in our function array.
+    local preexec_function
+    local preexec_function_ret_value
+    local preexec_ret_value=0
+    for preexec_function in "${preexec_functions[@]:-}"; do
+
+        # Only execute each function if it actually exists.
+        # Test existence of function with: declare -[fF]
+        if type -t "$preexec_function" 1>/dev/null; then
+            __bp_set_ret_value "${__bp_last_ret_value:-}"
+            # Quote our function invocation to prevent issues with IFS
+            "$preexec_function" "$this_command"
+            preexec_function_ret_value="$?"
+            if [[ "$preexec_function_ret_value" != 0 ]]; then
+                preexec_ret_value="$preexec_function_ret_value"
+            fi
+        fi
+    done
+
+    # Restore the last argument of the last executed command, and set the return
+    # value of the DEBUG trap to be the return code of the last preexec function
+    # to return an error.
+    # If `extdebug` is enabled a non-zero return value from any preexec function
+    # will cause the user's command not to execute.
+    # Run `shopt -s extdebug` to enable
+    __bp_set_ret_value "$preexec_ret_value" "$__bp_last_argument_prev_command"
+}
+
+__bp_install() {
+    # Exit if we already have this installed.
+    if [[ "${PROMPT_COMMAND[*]:-}" == *"__bp_precmd_invoke_cmd"* ]]; then
+        return 1
+    fi
+
+    trap '__bp_preexec_invoke_exec "$_"' DEBUG
+
+    # Preserve any prior DEBUG trap as a preexec function
+    eval "local trap_argv=(${__bp_trap_string:-})"
+    local prior_trap=${trap_argv[2]:-}
+    unset __bp_trap_string
+    if [[ -n "$prior_trap" ]]; then
+        eval '__bp_original_debug_trap() {
+            '"$prior_trap"'
+        }'
+        preexec_functions+=(__bp_original_debug_trap)
+    fi
+
+    # Adjust our HISTCONTROL Variable if needed.
+    #
+    # GHOSTTY: Don't modify HISTCONTROL. This hack is only needed to improve the
+    # accuracy of the command argument passed to the preexec functions, and we
+    # don't use that argument in our bash shell integration script (and nor does
+    # the __bp_original_debug_trap function above, which is the only other active
+    # preexec function).
+    #__bp_adjust_histcontrol
+
+    # Issue #25. Setting debug trap for subshells causes sessions to exit for
+    # backgrounded subshell commands (e.g. (pwd)& ). Believe this is a bug in Bash.
+    #
+    # Disabling this by default. It can be enabled by setting this variable.
+    if [[ -n "${__bp_enable_subshells:-}" ]]; then
+
+        # Set so debug trap will work be invoked in subshells.
+        set -o functrace > /dev/null 2>&1
+        shopt -s extdebug > /dev/null 2>&1
+    fi
+
+    local existing_prompt_command
+    # Remove setting our trap install string and sanitize the existing prompt command string
+    existing_prompt_command="${PROMPT_COMMAND:-}"
+    # Edge case of appending to PROMPT_COMMAND
+    existing_prompt_command="${existing_prompt_command//$__bp_install_string/:}" # no-op
+    existing_prompt_command="${existing_prompt_command//$'\n':$'\n'/$'\n'}" # remove known-token only
+    existing_prompt_command="${existing_prompt_command//$'\n':;/$'\n'}" # remove known-token only
+    __bp_sanitize_string existing_prompt_command "$existing_prompt_command"
+    if [[ "${existing_prompt_command:-:}" == ":" ]]; then
+        existing_prompt_command=
+    fi
+
+    # Install our hooks in PROMPT_COMMAND to allow our trap to know when we've
+    # actually entered something.
+    PROMPT_COMMAND='__bp_precmd_invoke_cmd'
+    PROMPT_COMMAND+=${existing_prompt_command:+$'\n'$existing_prompt_command}
+    if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 1) )); then
+        PROMPT_COMMAND+=('__bp_interactive_mode')
+    else
+        # shellcheck disable=SC2179 # PROMPT_COMMAND is not an array in bash <= 5.0
+        PROMPT_COMMAND+=$'\n__bp_interactive_mode'
+    fi
+
+    # Add two functions to our arrays for convenience
+    # of definition.
+    precmd_functions+=(precmd)
+    preexec_functions+=(preexec)
+
+    # Invoke our two functions manually that were added to $PROMPT_COMMAND
+    __bp_precmd_invoke_cmd
+    __bp_interactive_mode
+}
+
+# Sets an installation string as part of our PROMPT_COMMAND to install
+# after our session has started. This allows bash-preexec to be included
+# at any point in our bash profile.
+__bp_install_after_session_init() {
+    # bash-preexec needs to modify these variables in order to work correctly
+    # if it can't, just stop the installation
+    __bp_require_not_readonly PROMPT_COMMAND HISTCONTROL HISTTIMEFORMAT || return
+
+    local sanitized_prompt_command
+    __bp_sanitize_string sanitized_prompt_command "${PROMPT_COMMAND:-}"
+    if [[ -n "$sanitized_prompt_command" ]]; then
+        # shellcheck disable=SC2178 # PROMPT_COMMAND is not an array in bash <= 5.0
+        PROMPT_COMMAND=${sanitized_prompt_command}$'\n'
+    fi
+    # shellcheck disable=SC2179 # PROMPT_COMMAND is not an array in bash <= 5.0
+    PROMPT_COMMAND+=${__bp_install_string}
+}
+
+# Run our install so long as we're not delaying it.
+if [[ -z "${__bp_delay_install:-}" ]]; then
+    __bp_install_after_session_init
+fi
diff --git a/vendor/libghostty-vt/src/shell-integration/bash/ghostty.bash b/vendor/libghostty-vt/src/shell-integration/bash/ghostty.bash
new file mode 100644
index 00000000..7eaf1397
--- /dev/null
+++ b/vendor/libghostty-vt/src/shell-integration/bash/ghostty.bash
@@ -0,0 +1,324 @@
+# Parts of this script are based on Kitty's bash integration. Kitty is
+# distributed under GPLv3, so this file is also distributed under GPLv3.
+# The license header is reproduced below:
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# We need to be in interactive mode to proceed.
+if [[ "$-" != *i* ]]; then builtin return; fi
+
+# When automatic shell integration is active, we were started in POSIX
+# mode and need to manually recreate the bash startup sequence.
+if [ -n "$GHOSTTY_BASH_INJECT" ]; then
+  # Store a temporary copy of our startup flags and unset these global
+  # environment variables so we can safely handle reentrancy.
+  builtin declare __ghostty_bash_flags="$GHOSTTY_BASH_INJECT"
+  builtin unset ENV GHOSTTY_BASH_INJECT
+
+  # Restore an existing ENV that was replaced by the shell integration code.
+  if [[ -n "$GHOSTTY_BASH_ENV" ]]; then
+    builtin export ENV=$GHOSTTY_BASH_ENV
+    builtin unset GHOSTTY_BASH_ENV
+  fi
+
+  # Restore bash's default 'posix' behavior. Also reset 'inherit_errexit',
+  # which doesn't happen as part of the 'posix' reset.
+  builtin set +o posix
+  builtin shopt -u inherit_errexit 2>/dev/null
+
+  # Unexport HISTFILE if it was set by the shell integration code.
+  if [[ -n "$GHOSTTY_BASH_UNEXPORT_HISTFILE" ]]; then
+    builtin export -n HISTFILE
+    builtin unset GHOSTTY_BASH_UNEXPORT_HISTFILE
+  fi
+
+  # Manually source the startup files. See INVOCATION in bash(1) and
+  # run_startup_files() in shell.c in the Bash source code.
+  if builtin shopt -q login_shell; then
+    if [[ $__ghostty_bash_flags != *"--noprofile"* ]]; then
+      [ -r /etc/profile ] && builtin source "/etc/profile"
+      for __ghostty_rcfile in "$HOME/.bash_profile" "$HOME/.bash_login" "$HOME/.profile"; do
+        [ -r "$__ghostty_rcfile" ] && {
+          builtin source "$__ghostty_rcfile"
+          break
+        }
+      done
+    fi
+  else
+    if [[ $__ghostty_bash_flags != *"--norc"* ]]; then
+      # The location of the system bashrc is determined at bash build
+      # time via -DSYS_BASHRC and can therefore vary across distros:
+      #  Arch, Debian, Ubuntu use /etc/bash.bashrc
+      #  Fedora uses /etc/bashrc sourced from ~/.bashrc instead of SYS_BASHRC
+      #  Void Linux uses /etc/bash/bashrc
+      #  Nixos uses /etc/bashrc
+      for __ghostty_rcfile in /etc/bash.bashrc /etc/bash/bashrc /etc/bashrc; do
+        [ -r "$__ghostty_rcfile" ] && {
+          builtin source "$__ghostty_rcfile"
+          break
+        }
+      done
+      if [[ -z "$GHOSTTY_BASH_RCFILE" ]]; then GHOSTTY_BASH_RCFILE="$HOME/.bashrc"; fi
+      [ -r "$GHOSTTY_BASH_RCFILE" ] && builtin source "$GHOSTTY_BASH_RCFILE"
+    fi
+  fi
+
+  builtin unset __ghostty_rcfile
+  builtin unset __ghostty_bash_flags
+  builtin unset GHOSTTY_BASH_RCFILE
+fi
+
+# Add Ghostty binary to PATH if the path feature is enabled
+if [[ "$GHOSTTY_SHELL_FEATURES" == *"path"* && -n "$GHOSTTY_BIN_DIR" ]]; then
+  if [[ ":$PATH:" != *":$GHOSTTY_BIN_DIR:"* ]]; then
+    export PATH="$PATH:$GHOSTTY_BIN_DIR"
+  fi
+fi
+
+# Sudo
+if [[ "$GHOSTTY_SHELL_FEATURES" == *"sudo"* && -n "$TERMINFO" ]]; then
+  # Wrap `sudo` command to ensure Ghostty terminfo is preserved.
+  #
+  # This approach supports wrapping a `sudo` alias, but the alias definition
+  # must come _after_ this function is defined. Otherwise, the alias expansion
+  # will take precedence over this function, and it won't be wrapped.
+  function sudo {
+    builtin local sudo_has_sudoedit_flags="no"
+    for arg in "$@"; do
+      # Check if argument is '-e' or '--edit' (sudoedit flags)
+      if [[ "$arg" == "-e" || $arg == "--edit" ]]; then
+        sudo_has_sudoedit_flags="yes"
+        builtin break
+      fi
+      # Check if argument is neither an option nor a key-value pair
+      if [[ "$arg" != -* && "$arg" != *=* ]]; then
+        builtin break
+      fi
+    done
+    if [[ "$sudo_has_sudoedit_flags" == "yes" ]]; then
+      builtin command sudo "$@"
+    else
+      builtin command sudo --preserve-env=TERMINFO "$@"
+    fi
+  }
+fi
+
+# SSH Integration
+if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-* ]]; then
+  function ssh() {
+    builtin local ssh_term ssh_opts
+    ssh_term="xterm-256color"
+    ssh_opts=()
+
+    # Configure environment variables for remote session
+    if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-env* ]]; then
+      ssh_opts+=(-o "SendEnv COLORTERM TERM_PROGRAM TERM_PROGRAM_VERSION")
+    fi
+
+    # Install terminfo on remote host if needed
+    if [[ "$GHOSTTY_SHELL_FEATURES" == *ssh-terminfo* ]]; then
+      builtin local ssh_user ssh_hostname
+
+      while IFS=' ' read -r ssh_key ssh_value; do
+        case "$ssh_key" in
+        user) ssh_user="$ssh_value" ;;
+        hostname) ssh_hostname="$ssh_value" ;;
+        esac
+        [[ -n "$ssh_user" && -n "$ssh_hostname" ]] && break
+      done < <(builtin command ssh -G "$@" 2>/dev/null)
+
+      if [[ -n "$ssh_hostname" ]]; then
+        builtin local ssh_target="${ssh_user}@${ssh_hostname}"
+
+        # Check if terminfo is already cached
+        if "$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --host="$ssh_target" >/dev/null 2>&1; then
+          ssh_term="xterm-ghostty"
+        elif builtin command -v infocmp >/dev/null 2>&1; then
+          builtin local ssh_terminfo ssh_cpath_dir ssh_cpath
+
+          ssh_terminfo=$(infocmp -0 -x xterm-ghostty 2>/dev/null)
+
+          if [[ -n "$ssh_terminfo" ]]; then
+            builtin echo "Setting up xterm-ghostty terminfo on $ssh_hostname..." >&2
+
+            ssh_cpath_dir=$(mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null) || ssh_cpath_dir="/tmp/ghostty-ssh-$ssh_user.$$"
+            ssh_cpath="$ssh_cpath_dir/socket"
+
+            if builtin echo "$ssh_terminfo" | builtin command ssh -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s "$@" '
+              infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
+              command -v tic >/dev/null 2>&1 || exit 1
+              mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
+              exit 1
+            ' 2>/dev/null; then
+              ssh_term="xterm-ghostty"
+              ssh_opts+=(-o "ControlPath=$ssh_cpath")
+
+              # Cache successful installation
+              "$GHOSTTY_BIN_DIR/ghostty" +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
+            else
+              builtin echo "Warning: Failed to install terminfo." >&2
+            fi
+          else
+            builtin echo "Warning: Could not generate terminfo data." >&2
+          fi
+        else
+          builtin echo "Warning: ghostty command not available for cache management." >&2
+        fi
+      fi
+    fi
+
+    # Execute SSH with TERM environment variable
+    TERM="$ssh_term" COLORTERM=truecolor builtin command ssh "${ssh_opts[@]}" "$@"
+  }
+fi
+
+# This is set to 1 when we're executing a command so that we don't
+# send prompt marks multiple times.
+_ghostty_executing=""
+_ghostty_last_reported_cwd=""
+
+function __ghostty_precmd() {
+  local ret="$?"
+  if test "$_ghostty_executing" != "0"; then
+    _GHOSTTY_SAVE_PS1="$PS1"
+    _GHOSTTY_SAVE_PS2="$PS2"
+
+    # Use 133;P (not 133;A) inside PS1 to avoid fresh-line behavior on
+    # readline redraws (e.g., vi mode switches, Ctrl-L). The initial
+    # 133;A with fresh-line is emitted once via printf below.
+    PS1='\[\e]133;P;k=i\a\]'$PS1'\[\e]133;B\a\]'
+    PS2='\[\e]133;P;k=s\a\]'$PS2'\[\e]133;B\a\]'
+
+    # Bash doesn't redraw the leading lines in a multiline prompt so we mark
+    # the start of each line (after each newline) as a secondary prompt. This
+    # correctly handles multiline prompts by setting the first to primary and
+    # the subsequent lines to secondary.
+    #
+    # We only replace the \n prompt escape, not literal newlines ($'\n'),
+    # because literal newlines may appear inside $(...) command substitutions
+    # where inserting escape sequences would break shell syntax.
+    if [[ "$PS1" == *"\n"* ]]; then
+      PS1="${PS1//\\n/\\n$'\\[\\e]133;P;k=s\\a\\]'}"
+    fi
+
+    # Cursor
+    if [[ "$GHOSTTY_SHELL_FEATURES" == *"cursor"* ]]; then
+      builtin local cursor=5  # blinking bar
+      [[ "$GHOSTTY_SHELL_FEATURES" == *"cursor:steady"* ]] && cursor=6  # steady bar
+
+      [[ "$PS1" != *"\[\e[${cursor} q\]"* ]] && PS1=$PS1"\[\e[${cursor} q\]"
+      [[ "$PS0" != *'\[\e[0 q\]'* ]] && PS0=$PS0'\[\e[0 q\]' # reset
+    fi
+
+    # Title (working directory)
+    if [[ "$GHOSTTY_SHELL_FEATURES" == *"title"* ]]; then
+      PS1=$PS1'\[\e]2;\w\a\]'
+    fi
+  fi
+
+  if test "$_ghostty_executing" != ""; then
+    # End of current command. Report its status.
+    builtin printf "\e]133;D;%s;aid=%s\a" "$ret" "$BASHPID"
+  fi
+
+  # Fresh line and start of prompt. When ble.sh is active, emit 133;P instead
+  # of 133;A because ble.sh maintains its own cursor position tracking. 133;A's
+  # cursor movement (CR+LF when not at column 0) is invisible to ble.sh and
+  # desyncs its position state, causing display artifacts like duplicate
+  # prompts. See: https://github.com/akinomyoga/ble.sh/issues/684
+  if [[ -n "${BLE_VERSION-}" ]]; then
+    builtin printf "\e]133;P;k=i\a"
+  else
+    builtin printf "\e]133;A;redraw=last;cl=line;aid=%s\a" "$BASHPID"
+  fi
+
+  # unfortunately bash provides no hooks to detect cwd changes
+  # in particular this means cwd reporting will not happen for a
+  # command like cd /test && cat. PS0 is evaluated before cd is run.
+  if [[ "$_ghostty_last_reported_cwd" != "$PWD" ]]; then
+    _ghostty_last_reported_cwd="$PWD"
+    builtin printf "\e]7;kitty-shell-cwd://%s%s\a" "$HOSTNAME" "$PWD"
+  fi
+
+  _ghostty_executing=0
+}
+
+function __ghostty_preexec() {
+  builtin local cmd="$1"
+
+  PS1="$_GHOSTTY_SAVE_PS1"
+  PS2="$_GHOSTTY_SAVE_PS2"
+
+  # Title (current command)
+  if [[ -n $cmd && "$GHOSTTY_SHELL_FEATURES" == *"title"* ]]; then
+    builtin printf "\e]2;%s\a" "${cmd//[[:cntrl:]]/}"
+  fi
+
+  # End of input, start of output.
+  builtin printf "\e]133;C;\a"
+  _ghostty_executing=1
+}
+
+if (( BASH_VERSINFO[0] > 4 || (BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] >= 4) )); then
+  __ghostty_preexec_hook() {
+    builtin local cmd
+    cmd=$(LC_ALL=C HISTTIMEFORMAT='' builtin history 1)
+    cmd="${cmd#*[[:digit:]][* ] }"  # remove leading history number
+    [[ -n "$cmd" ]] && __ghostty_preexec "$cmd"
+  }
+
+  __ghostty_hook() {
+    builtin local ret=$?
+    __ghostty_precmd "$ret"
+
+    # Append preexec hook to PS0 if not already present.
+    # Use function substitution in 5.3+, otherwise command substitution.
+    if [[ "$PS0" != *"__ghostty_preexec_hook"* ]]; then
+      if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 3) )); then
+        # shellcheck disable=SC2016
+        PS0+='${ __ghostty_preexec_hook; }'
+      else
+        # shellcheck disable=SC2016
+        PS0+='$(__ghostty_preexec_hook >/dev/tty)'
+      fi
+    fi
+  }
+
+  # Append our hook to PROMPT_COMMAND, preserving its existing type.
+  #
+  # The 2>/dev/null suppresses "command not found" in subshells that inherit
+  # PROMPT_COMMAND without the function definition. This also silences any
+  # errors from inside __ghostty_hook itself, but those are all terminal escape
+  # sequences and non-actionable.
+  #
+  # shellcheck disable=SC2128,SC2178,SC2179
+  if [[ ";${PROMPT_COMMAND[*]:-};" != *";__ghostty_hook 2>/dev/null;"* ]]; then
+    if [[ -z "${PROMPT_COMMAND[*]}" ]]; then
+      if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 1) )); then
+        PROMPT_COMMAND=("__ghostty_hook 2>/dev/null")
+      else
+        PROMPT_COMMAND="__ghostty_hook 2>/dev/null"
+      fi
+    elif [[ $(builtin declare -p PROMPT_COMMAND 2>/dev/null) == "declare -a "* ]]; then
+      PROMPT_COMMAND+=("__ghostty_hook 2>/dev/null")
+    else
+      [[ "${PROMPT_COMMAND}" =~ (\;[[:space:]]*|$'\n')$ ]] || PROMPT_COMMAND+=";"
+      PROMPT_COMMAND+="__ghostty_hook 2>/dev/null"
+    fi
+  fi
+else
+  builtin source "$(dirname -- "${BASH_SOURCE[0]}")/bash-preexec.sh"
+  preexec_functions+=(__ghostty_preexec)
+  precmd_functions+=(__ghostty_precmd)
+fi