Samuel OnojaandSamuel Onoja
6b0d903ad0
* Add Live Activities as configurable bar items * Fix activity owner monitoring and Morph list interactions * Keep activity rows stable during updates and tighten their layout * Use subtle theme tint for activity cards * Tighten activity title and progress spacing * Use theme accent for active progress rings * Fit compact activities to measured titles and badge * Expose Live Activities display controls in Settings * Open activity terminals and streamline the Morph header * Give Morph continuous icons and prioritize workspace navigation * Show activity progress inside its ring * Inset activity progress rings and strengthen their stroke * Fix activity lifecycle, command output handling and list navigation * Reduce activity update work and harden publisher lifetimes * Set up Live Activities for the detected user shell during installation * Document Activities setup, daily use and troubleshooting * Preserve Morph idle width across empty activity updates * Fix dimming flicker, hide inactive music tab and consolidate Activities docs * Fix panel clearance across styles and match previews to theme settings * Prevent panel blur from repainting neighboring islands --------- Co-authored-by: Samuel Onoja <[email protected]>
567 lines
21 KiB
Bash
567 lines
21 KiB
Bash
# bash-preexec.sh -- Bash support for ZSH-like 'preexec' and 'precmd' functions.
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# https://github.com/rcaloras/bash-preexec
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#
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#
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# 'preexec' functions are executed before each interactive command is
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# executed, with the interactive command as its argument. The 'precmd'
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# function is executed before each prompt is displayed.
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#
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# Author: Ryan Caloras ([email protected])
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# Forked from Original Author: Glyph Lefkowitz
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#
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# V0.7.0
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#
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# General Usage:
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#
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# 1. Source this file at the end of your bash profile so as not to interfere
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# with anything else that's using PROMPT_COMMAND.
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#
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# 2. Add any precmd or preexec functions by appending them to their arrays:
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# e.g.
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# precmd_functions+=(my_precmd_function)
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# precmd_functions+=(some_other_precmd_function)
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#
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# preexec_functions+=(my_preexec_function)
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#
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# 3. Consider changing anything using the DEBUG trap or PROMPT_COMMAND
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# to use preexec and precmd instead. Preexisting usages will be
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# preserved, but doing so manually may be less surprising.
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#
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# Note: This module requires two Bash features which you must not otherwise be
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# using: the "DEBUG" trap, and the "PROMPT_COMMAND" variable. If you override
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# either of these after bash-preexec has been installed it will most likely break.
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# Tell shellcheck what kind of file this is.
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# shellcheck shell=bash
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# Make sure this is bash that's running and return otherwise.
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# Use POSIX syntax for this line:
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if [ -z "${BASH_VERSION-}" ]; then
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return 1
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fi
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# We only support Bash 3.1+.
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# Note: BASH_VERSINFO is first available in Bash-2.0.
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if [[ -z "${BASH_VERSINFO-}" ]] || (( BASH_VERSINFO[0] < 3 || (BASH_VERSINFO[0] == 3 && BASH_VERSINFO[1] < 1) )); then
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return 1
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fi
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# Avoid duplicate inclusion
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if [[ -n "${bash_preexec_imported:-}" || -n "${__bp_imported:-}" ]]; then
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return 0
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fi
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bash_preexec_imported="defined"
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# WARNING: This variable is no longer used and should not be relied upon.
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# Use ${bash_preexec_imported} instead.
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# shellcheck disable=SC2034
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__bp_imported="${bash_preexec_imported}"
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# Should be available to each precmd and preexec
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# functions, should they want it. $? and $_ are available as $? and $_, but
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# $PIPESTATUS is available only in a copy, $BP_PIPESTATUS.
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# TODO: Figure out how to restore PIPESTATUS before each precmd or preexec
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# function.
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__bp_last_ret_value="$?"
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BP_PIPESTATUS=("${PIPESTATUS[@]}")
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__bp_last_argument_prev_command="$_"
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__bp_inside_precmd=0
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__bp_inside_preexec=0
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# Initial PROMPT_COMMAND string that is removed from PROMPT_COMMAND post __bp_install
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# shellcheck disable=SC2016
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__bp_install_string='__bp_install "$_"'
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# Fails if any of the given variables are readonly
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# Reference https://stackoverflow.com/a/4441178
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__bp_require_not_readonly() {
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local var
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for var; do
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if ! ( unset "$var" 2> /dev/null ); then
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echo "bash-preexec requires write access to ${var}" >&2
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return 1
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fi
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done
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}
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# Remove ignorespace and or replace ignoreboth from HISTCONTROL
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# so we can accurately invoke preexec with a command from our
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# history even if it starts with a space.
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__bp_adjust_histcontrol() {
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local histcontrol
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histcontrol="${HISTCONTROL:-}"
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histcontrol="${histcontrol//ignorespace}"
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# Replace ignoreboth with ignoredups
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if [[ "$histcontrol" == *"ignoreboth"* ]]; then
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histcontrol="ignoredups:${histcontrol//ignoreboth}"
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fi
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export HISTCONTROL="$histcontrol"
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}
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# This variable describes whether we are currently in "interactive mode";
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# i.e. whether this shell has just executed a prompt and is waiting for user
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# input. It documents whether the current command invoked by the trace hook is
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# run interactively by the user; it's set immediately after the prompt hook,
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# and unset as soon as the trace hook is run.
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__bp_preexec_interactive_mode=""
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# These global arrays are used to add functions to be run before, or after,
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# prompts. Note that Bash < 4.2 does not have the "-g" option of the "declare"
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# builtin. We actually do not need to explicitly initialize these arrays.
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#declare -ga precmd_functions
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#declare -ga preexec_functions
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# Trims leading and trailing whitespace from $2 and writes it to the variable
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# name passed as $1
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__bp_trim_whitespace() {
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local var=${1:?} text=${2:-}
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text="${text#"${text%%[![:space:]]*}"}" # remove leading whitespace characters
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text="${text%"${text##*[![:space:]]}"}" # remove trailing whitespace characters
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printf -v "$var" '%s' "$text"
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}
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# Trims whitespace and removes any leading or trailing semicolons from $2 and
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# writes the resulting string to the variable name passed as $1. This also
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# removes the no-op colons, which are converted from the hooks to remove. Used
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# for manipulating substrings in PROMPT_COMMAND
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__bp_sanitize_string() {
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local var=${1:?} sanitized=${2:-}
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local unset_extglob=
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if ! shopt -q extglob; then
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unset_extglob=yes
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shopt -s extglob
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fi
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# We specify newline character through the variable `nl' because $'\n'
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# inside "${var//...}" is treated literally as "\$'\\n'" when `extquote' is
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# unset (shopt -u extquote). (Note: Bash 5.2's extquote seems to be buggy.)
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local tmp nl=$'\n'
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while
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# Note: Quoting parameter expansions $nl in PAT of ${var//PAT/REP} is
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# required by shellcheck. On the other hand, we should not quote the
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# parameter expansions $nl in REP because the quotes will remain in the
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# replaced result with `shopt -s compat42'.
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# Note: We use ?(+([[:blank:]])) instead of *([[:blank:]]) to work
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# around a bug of Bash 3.2 that *(...) is not properly processed as
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# extglob at the beginning of the pattern in ${var//pat/rep}.
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tmp="${sanitized//?(+([[:blank:]]))[";$nl"]*([[:blank:]]):*([[:blank:]])[";$nl"]*([[:blank:]])/$nl}"
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[[ "$tmp" != "$sanitized" ]]
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do
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sanitized="$tmp"
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done
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sanitized="${sanitized#:*([[:blank:]])[";$nl"]}"
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sanitized="${sanitized%[";$nl"]*([[:blank:]]):}"
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__bp_trim_whitespace sanitized "$sanitized"
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sanitized=${sanitized%;}
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sanitized=${sanitized#;}
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__bp_trim_whitespace sanitized "$sanitized"
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if [[ "$sanitized" == ":" ]]; then
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sanitized=
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fi
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printf -v "$var" '%s' "$sanitized"
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if [[ -n "$unset_extglob" ]]; then
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shopt -u extglob
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fi
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}
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# Bash >= 5.1 supports the array version of PROMPT_COMMAND.
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__bp_use_array_prompt_command() {
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(( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 1) ))
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}
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# Remove $1 and sanitize each elements of PROMPT_COMMAND. We want to keep
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# PROMPT_COMMAND scalar in bash < 5.1 because some configuration tests the
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# support for the array PROMPT_COMMAND by checking the array attribute of
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# PROMPT_COMMAND.
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__bp_remove_command_from_prompt_command() {
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local removed_command="${1-}"
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if __bp_use_array_prompt_command; then
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local i sanitized_prompt_command
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for i in "${!PROMPT_COMMAND[@]}"; do
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sanitized_prompt_command="${PROMPT_COMMAND[i]:-}"
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sanitized_prompt_command="${sanitized_prompt_command//"$removed_command"/:}"
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__bp_sanitize_string sanitized_prompt_command "$sanitized_prompt_command"
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if [[ -n "$sanitized_prompt_command" ]]; then
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PROMPT_COMMAND[i]="$sanitized_prompt_command"
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else
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unset -v 'PROMPT_COMMAND[i]'
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fi
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done
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else
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local sanitized_prompt_command="${PROMPT_COMMAND:-}"
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sanitized_prompt_command="${sanitized_prompt_command//"$removed_command"/:}" # no-op
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__bp_sanitize_string PROMPT_COMMAND "$sanitized_prompt_command"
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fi
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}
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# This function is installed as part of the PROMPT_COMMAND;
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# It sets a variable to indicate that the prompt was just displayed,
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# to allow the DEBUG trap to know that the next command is likely interactive.
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__bp_interactive_mode() {
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if [[ "${1-}" != "force" && ! "${BATS_VERSION-}" ]] && (( ${#FUNCNAME[*]} > 1 )); then
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# When this function is not called from the top level, the current
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# function call is probably performed via PROMPT_COMMAND saved by
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# another framework (e.g., starship). In this case, we do not want to
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# turn on the "interactive mode" here.
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return 0
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fi
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__bp_preexec_interactive_mode="on"
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}
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# This function is installed as part of the PROMPT_COMMAND.
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# It will invoke any functions defined in the precmd_functions array.
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__bp_precmd_invoke_cmd() {
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# Save the returned value and the last argument from our last command, and
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# the returned value from each process in its pipeline. Note: this MUST be
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# the first thing done in this function.
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# BP_PIPESTATUS may be unused, ignore
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# shellcheck disable=SC2034
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__bp_last_ret_value="$?" __bp_last_argument_prev_command="$_" \
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BP_PIPESTATUS=("${PIPESTATUS[@]}")
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# Don't invoke precmds if we are inside an execution of an "original
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# prompt command" by another precmd execution loop. This avoids infinite
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# recursion.
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if (( __bp_inside_precmd > 0 )); then
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return "$__bp_last_ret_value"
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fi
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# Check and adjust PROMPT_COMMAND to make sure that PROMPT_COMMAND has the
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# form "__bp_precmd_invoke_cmd; ...; __bp_interactive_mode"
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if ! __bp_install_prompt_command; then
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if [[ "${1-}" != "force" && ! "${BATS_VERSION-}" ]] && (( ${#FUNCNAME[*]} > 1 )); then
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# When PROMPT_COMMAND is already properly set up but this function
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# is not called from the top level, the current function call is
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# probably performed via PROMPT_COMMAND saved by another framework
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# (e.g., starship). In this case, we do not need to invoke precmd
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# because it is supposed to be already processed by the top-level
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# __bp_precmd_invoke_cmd.
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return "$__bp_last_ret_value"
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fi
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fi
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local __bp_inside_precmd=1
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__bp_invoke_precmd_functions "$__bp_last_ret_value" "$__bp_last_argument_prev_command"
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__bp_set_ret_value "$__bp_last_ret_value" "$__bp_last_argument_prev_command"
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}
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# This function invokes every function defined in the "precmd_functions" array.
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# This function receives the arguments $1 and $2 for $? and $_, respectively,
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# which will be set for each precmd function. This function returns the last
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# non-zero exit status of the hook functions. If there is no error, this
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# function returns 0.
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__bp_invoke_precmd_functions() {
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local lastexit=$1 lastarg=$2
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# Invoke every function defined in our function array.
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local precmd_function
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local precmd_function_ret_value
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local precmd_ret_value=0
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for precmd_function in "${precmd_functions[@]}"; do
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# Only execute this function if it actually exists.
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# Test existence of functions with: declare -[Ff]
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if type -t "$precmd_function" 1>/dev/null; then
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__bp_set_ret_value "$lastexit" "$lastarg"
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# Quote our function invocation to prevent issues with IFS
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"$precmd_function"
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precmd_function_ret_value=$?
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if [[ "$precmd_function_ret_value" != 0 ]]; then
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precmd_ret_value="$precmd_function_ret_value"
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fi
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fi
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done
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__bp_set_ret_value "$precmd_ret_value"
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}
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# Sets a return value in $?. We may want to get access to the $? variable in our
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# precmd functions. This is available for instance in zsh. We can simulate it in bash
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# by setting the value here.
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__bp_set_ret_value() {
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return ${1:+"$1"}
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}
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__bp_in_prompt_command() {
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local prompt_command_array IFS=$'\n;'
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read -rd '' -a prompt_command_array <<< "${PROMPT_COMMAND[*]:-}"
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local trimmed_arg
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__bp_trim_whitespace trimmed_arg "${1:-}"
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local command trimmed_command
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for command in "${prompt_command_array[@]:-}"; do
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__bp_trim_whitespace trimmed_command "$command"
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if [[ "$trimmed_command" == "$trimmed_arg" ]]; then
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return 0
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fi
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done
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return 1
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}
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__bp_load_this_command_from_history() {
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this_command=$(LC_ALL=C HISTTIMEFORMAT='' builtin history 1)
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this_command="${this_command#*[[:digit:]][* ] }"
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# Sanity check to make sure we have something to invoke our function with.
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[[ -n "$this_command" ]]
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}
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# This function is installed as the DEBUG trap. It is invoked before each
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# interactive prompt display. Its purpose is to inspect the current
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# environment to attempt to detect if the current command is being invoked
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# interactively, and invoke 'preexec' if so.
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__bp_preexec_invoke_exec() {
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local lastarg=$_
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# Don't invoke preexecs if we are inside of another preexec.
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if (( __bp_inside_preexec > 0 )); then
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return
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fi
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local __bp_inside_preexec=1
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# Checks if the file descriptor is not standard out (i.e. '1')
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# __bp_delay_install checks if we're in test. Needed for bats to run.
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# Prevents preexec from being invoked for functions in PS1
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if [[ ! -t 1 && -z "${__bp_delay_install:-}" ]]; then
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return
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fi
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if [[ -n "${COMP_POINT:-}" || -n "${READLINE_POINT:-}" ]]; then
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# We're in the middle of a completer or a keybinding set up by "bind
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# -x". This obviously can't be an interactively issued command.
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return
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fi
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if [[ -z "${__bp_preexec_interactive_mode:-}" ]]; then
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# We're doing something related to displaying the prompt. Let the
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# prompt set the title instead of me.
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return
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else
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# If we're in a subshell, then the prompt won't be re-displayed to put
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# us back into interactive mode, so let's not set the variable back.
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# In other words, if you have a subshell like
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# (sleep 1; sleep 2)
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# You want to see the 'sleep 2' as a set_command_title as well.
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if [[ 0 -eq "${BASH_SUBSHELL:-}" ]]; then
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__bp_preexec_interactive_mode=""
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fi
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fi
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if __bp_in_prompt_command "${BASH_COMMAND:-}"; then
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# If we're executing something inside our prompt_command then we don't
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# want to call preexec. Bash prior to 3.1 can't detect this at all :/
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__bp_preexec_interactive_mode=""
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return
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fi
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# Save the contents of $_ so that it can be restored later on.
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# https://stackoverflow.com/questions/40944532/bash-preserve-in-a-debug-trap#40944702
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__bp_last_argument_prev_command=$lastarg
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local this_command
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__bp_load_this_command_from_history || return
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__bp_invoke_preexec_functions "${__bp_last_ret_value:-}" "$__bp_last_argument_prev_command" "$this_command"
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local preexec_ret_value=$?
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# Restore the last argument of the last executed command, and set the return
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# value of the DEBUG trap to be the return code of the last preexec function
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# to return an error.
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# If `extdebug` is enabled a non-zero return value from any preexec function
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# will cause the user's command not to execute.
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# Run `shopt -s extdebug` to enable
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__bp_set_ret_value "$preexec_ret_value" "$__bp_last_argument_prev_command"
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}
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__bp_invoke_preexec_from_ps0() {
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__bp_last_argument_prev_command="${1:-}"
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local this_command
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__bp_load_this_command_from_history || return
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__bp_invoke_preexec_functions "${__bp_last_ret_value:-}" "$__bp_last_argument_prev_command" "$this_command"
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}
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# This function invokes every function defined in the "preexec_functions"
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# array. This function receives the arguments $1 and $2 for $? and $_,
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# respectively, which will be set for each preexec function. The third
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# argument $3 specifies the user command that is going to be executed
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# (corresponding to BASH_COMMAND in the DEBUG trap). This function returns the
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# last non-zero exit status from the preexec functions. If there is no error,
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# this function returns `0`.
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__bp_invoke_preexec_functions() {
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local lastexit=$1 lastarg=$2 this_command=$3
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local preexec_function
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local preexec_function_ret_value
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local preexec_ret_value=0
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for preexec_function in "${preexec_functions[@]:-}"; do
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# Only execute each function if it actually exists.
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# Test existence of function with: declare -[fF]
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if type -t "$preexec_function" 1>/dev/null; then
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__bp_set_ret_value "$lastexit" "$lastarg"
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# Quote our function invocation to prevent issues with IFS
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"$preexec_function" "$this_command"
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preexec_function_ret_value="$?"
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if [[ "$preexec_function_ret_value" != 0 ]]; then
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preexec_ret_value="$preexec_function_ret_value"
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fi
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fi
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done
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__bp_set_ret_value "$preexec_ret_value"
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}
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__bp_hook_preexec_into_debug() {
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local trap_string
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trap_string=$(trap -p DEBUG)
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trap '__bp_preexec_invoke_exec "$_"' DEBUG
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# Preserve any prior DEBUG trap as a preexec function
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eval "local trap_argv=(${trap_string:-})"
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local prior_trap=${trap_argv[2]:-}
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if [[ -n "$prior_trap" ]]; then
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eval '__bp_original_debug_trap() {
|
|
'"$prior_trap"'
|
|
}'
|
|
preexec_functions+=(__bp_original_debug_trap)
|
|
fi
|
|
|
|
# Adjust our HISTCONTROL Variable if needed.
|
|
__bp_adjust_histcontrol
|
|
|
|
# Issue #25. Setting debug trap for subshells causes sessions to exit for
|
|
# backgrounded subshell commands (e.g. (pwd)& ). Believe this is a bug in Bash.
|
|
#
|
|
# Disabling this by default. It can be enabled by setting this variable.
|
|
if [[ -n "${__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
|
|
}
|
|
|
|
__bp_hook_preexec_into_ps0() {
|
|
# shellcheck disable=SC2016
|
|
PS0=${PS0-}'${ __bp_invoke_preexec_from_ps0 "$_" >&2; }'
|
|
|
|
# Adjust our HISTCONTROL Variable if needed.
|
|
__bp_adjust_histcontrol
|
|
}
|
|
|
|
if (( BASH_VERSINFO[0] > 5 || (BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 3) )); then
|
|
__bp_hook_preexec_proc=__bp_hook_preexec_into_ps0
|
|
else
|
|
__bp_hook_preexec_proc=__bp_hook_preexec_into_debug
|
|
fi
|
|
|
|
__bp_install() {
|
|
local lastexit=$? lastarg=$_
|
|
# Exit if we already have this installed.
|
|
# shellcheck disable=SC2016
|
|
if [[ "${PROMPT_COMMAND[*]:-}" == *'__bp_precmd_invoke_cmd "$_"'* ]]; then
|
|
return 1
|
|
fi
|
|
|
|
"$__bp_hook_preexec_proc"
|
|
|
|
# Remove setting our trap install string and sanitize the existing prompt command string
|
|
__bp_remove_command_from_prompt_command "$__bp_install_string"
|
|
|
|
__bp_install_prompt_command || true
|
|
|
|
# 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 $PROMPT_COMMAND
|
|
__bp_set_ret_value "$lastexit" "$lastarg"
|
|
__bp_precmd_invoke_cmd force
|
|
__bp_interactive_mode force
|
|
}
|
|
|
|
# Note: We need to add the "trace" attribute to these functions so that "trap
|
|
# ... DEBUG" inside "__bp_install" and "__bp_hook_preexec_into_debug" takes
|
|
# effect even when there is an existing DEBUG trap.
|
|
declare -ft __bp_install __bp_hook_preexec_into_debug
|
|
|
|
# Encloses PROMPT_COMMAND hooks within __bp_precmd_invoke_cmd and
|
|
# __bp_interactive_mode. If all the PROMPT_COMMAND hooks are already surrounded
|
|
# by __bp_precmd_invoke_cmd and __bp_interactive_mode, the function exits with
|
|
# status 1.
|
|
__bp_install_prompt_command() {
|
|
local prompt_command="${PROMPT_COMMAND:-}"
|
|
if __bp_use_array_prompt_command; then
|
|
local IFS=$'\n'
|
|
prompt_command="${PROMPT_COMMAND[*]:-}"
|
|
IFS=$' \t\n'
|
|
fi
|
|
|
|
# Exit if we already have a properly set-up hooks in PROMPT_COMMAND
|
|
# shellcheck disable=SC2016
|
|
local prologue='__bp_precmd_invoke_cmd "$_"'
|
|
local epilogue='__bp_interactive_mode'
|
|
if [[ "$prompt_command" == "$prologue"$'\n'* && "$prompt_command" == *$'\n'"$epilogue" ]]; then
|
|
return 1
|
|
fi
|
|
|
|
__bp_remove_command_from_prompt_command "$prologue"
|
|
__bp_remove_command_from_prompt_command "$epilogue"
|
|
|
|
# Install our hooks in PROMPT_COMMAND to allow our trap to know when we've
|
|
# actually entered something.
|
|
# shellcheck disable=SC2128,SC2178 # PROMPT_COMMAND is not an array in bash <= 5.0
|
|
PROMPT_COMMAND=$prologue${PROMPT_COMMAND:+$'\n'$PROMPT_COMMAND}
|
|
if __bp_use_array_prompt_command; then
|
|
PROMPT_COMMAND+=("$epilogue")
|
|
else
|
|
# shellcheck disable=SC2179 # PROMPT_COMMAND is not an array in bash <= 5.0
|
|
PROMPT_COMMAND+=$'\n'$epilogue
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
# 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
|
|
if [[ $__bp_hook_preexec_proc == '__bp_hook_preexec_into_ps0' ]]; then
|
|
__bp_require_not_readonly PS0 || return
|
|
fi
|
|
|
|
if __bp_use_array_prompt_command; then
|
|
PROMPT_COMMAND+=("${__bp_install_string}")
|
|
else
|
|
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+=${__bp_install_string}
|
|
fi
|
|
}
|
|
|
|
# Run our install so long as we're not delaying it.
|
|
if [[ -z "${__bp_delay_install:-}" ]]; then
|
|
__bp_install_after_session_init
|
|
fi
|