mirror of
https://github.com/fscotto/infra.git
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Restrict tmux and desktop tools to Void hosts
This commit is contained in:
Fabio Scotto di Santolo
258
dotfiles/desktop/.tmux/plugins/tmux-autoreload/tmux-autoreload.tmux
Executable file
258
dotfiles/desktop/.tmux/plugins/tmux-autoreload/tmux-autoreload.tmux
Executable file
@@ -0,0 +1,258 @@
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#!/usr/bin/env bash
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# Automatically reloads your tmux configuration files on change.
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#
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# Copyright 2021 Maddison Hellstrom <github.com/b0o>, MIT License.
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set -Eeuo pipefail
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if [[ ${BASH_VERSINFO[0]} -ge 5 || (${BASH_VERSINFO[0]} -eq 4 && ${BASH_VERSINFO[1]} -ge 4) ]]; then
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shopt -s inherit_errexit
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fi
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function years_from() {
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local from="$1" to
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to="${2:-$(date +%Y)}"
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if [[ "$from" == "$to" ]]; then
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echo "$from"
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else
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echo "$from-$to"
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fi
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}
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declare -g self prog name
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self="$(realpath -e "${BASH_SOURCE[0]}")"
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prog="$(basename "$self")"
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name="${prog%.tmux}"
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declare -gr version="0.0.1"
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declare -gr authors=("$(years_from 2021) Maddison Hellstrom <github.com/b0o>")
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declare -gr repo_short="b0o/$name"
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declare -gr repository="https://github.com/$repo_short"
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declare -gr issues="https://github.com/$repo_short/issues"
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declare -gr license="MIT"
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declare -gr license_url="https://mit-license.org"
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function usage() {
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cat <<EOF
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Usage: $prog [-f] [OPT...]
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Automatically reloads your tmux configuration files on change.
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Options
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-h Display usage information.
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-v Display $name version and copyright information.
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-f Run in foreground (do not fork).
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-k Kill the running $name instance.
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-s Show $name status
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Installation
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To install $name with TPM (https://github.com/tmux-plugins/tpm), add the
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following line to the end of your tmux configuration file:
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set-option -g @plugin '$repo_short'
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If you don't use a plugin manager, git clone $name to the location of your
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choice and run it directly:
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run-shell "/path/to/$name/$prog"
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Once installed, you should be good to go unless you use non-standard
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configuration file paths or want to customize how $name behaves.
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Configuration file paths
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If your config file is at a non-standard location or if you have multiple,
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specify them in @$name-configs, separated by commas:
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set-option -g @$name-configs '/path/to/configs/a.conf,/path/to/configs/b.conf'
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Entrypoints
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Normally, $name will source whichever file changed. If you wish to
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source a specific set of files when any configuration file changes, use
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@$name-entrypoints:
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set-option -g @$name-entrypoints '/path/to/entrypoint.conf'
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You can specify multiple entrypoints separated by commas. All entrypoints
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will be sourced when any watched file changes.
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Set @$name-entrypoints to 1 to use the standard tmux configuration
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files as entrypoints, usually /etc/tmux.conf and ~/.tmux.conf. You can see
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these files with:
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tmux display-message -p "#{config_files}".
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Entrypoint Notes:
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- If entrypoints are configured, a changed file itself will not necessarily
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be reloaded unless it's an entrypoint or is sourced by an entrypoint.
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- Entrypoints will not be watched unless they're a standard tmux
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configuration file like ~/.tmux.conf or are included in @$name-configs.
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Other Options
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@$name-quiet 0|1 (Default: 0)
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If set to 1, $name will not display messages
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EOF
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}
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function usage_version() {
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cat <<EOF
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$name v$version
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Repository: $repository
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Issues: $issues
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License: $license ($license_url)
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Copyright: ${authors[0]}
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EOF
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if [[ ${#authors[@]} -gt 1 ]]; then
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printf ' %s\n' "${authors[@]:1}"
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fi
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}
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function display_message() {
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if [[ "$(tmux show-option -gv "@$name-quiet")" == "1" ]]; then
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return 0
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fi
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# `tmux display-message -c` is broken in v3.2a
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# https://github.com/tmux/tmux/issues/2737#issuecomment-898861216
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if [[ "$(tmux display-message -p "#{version}")" == "3.2a" ]]; then
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tmux display-message "$@"
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else
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while read -r client; do
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tmux display-message -c "$client" "$@"
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done < <(tmux list-clients -F '#{client_name}')
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fi
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}
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function get_base_configs() {
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tmux display-message -p "#{config_files}" | tr ',' '\n' | sort -u
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}
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function get_user_configs() {
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tmux show-option -gv "@$name-configs" | tr ',' '\n' | sort -u
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}
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function get_entrypoints() {
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local entrypoints
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entrypoints="$(tmux show-option -gv "@$name-entrypoints")"
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if [[ -z "$entrypoints" || "$entrypoints" == "0" ]]; then
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return 0
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fi
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if [[ "$entrypoints" == "1" ]]; then
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get_base_configs
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else
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echo "$entrypoints" | tr ',' '\n'
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fi
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}
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function get_instance() {
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local -i instance_pid
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instance_pid="$(tmux show-options -gv "@$name-pid")"
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if [[ "$instance_pid" -gt 0 ]] && ps "$instance_pid" &>/dev/null; then
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echo "$instance_pid"
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return 0
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fi
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return 1
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}
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function reload() {
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local -a entrypoints
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mapfile -t entrypoints < <(get_entrypoints)
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if [[ ${#entrypoints[@]} -eq 0 ]]; then
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entrypoints=("$@")
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fi
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if msg="$(tmux source-file "${entrypoints[@]}")"; then
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display_message "Reloaded $(
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printf '%s\n' "${entrypoints[@]}" | xargs -n1 basename | tr '\n' ',' | sed 's/,$/\n/; s/,/, /g'
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)"
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else
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display_message -d 0 "#[fg=white,bg=red,bold]ERROR: $msg"
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fi
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}
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function onexit() {
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local -i code=$?
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local -i entr_pid=$1
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display_message "$name exited with code $code" || true
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if [[ -v entr_pid && $entr_pid -gt 1 ]] && ps "$entr_pid" &>/dev/null; then
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kill "$entr_pid" || true
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fi
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tmux set-option -gu "@$name-pid" &
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return "$code"
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}
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function kill_instance() {
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local -i instance_pid
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if instance_pid="$(get_instance)"; then
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kill "$instance_pid"
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return $?
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fi
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echo "$name -k: kill failed: no instance found" >&2
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return 1
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}
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function get_status() {
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local -i instance_pid
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if instance_pid="$(get_instance)"; then
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echo "running: $instance_pid"
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return 0
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fi
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echo "not running"
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return 1
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}
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function main() {
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if ! [[ "${1:-}" =~ ^-[hvfksr]$ ]]; then
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"$self" -f "$@" &>/dev/null &
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disown
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exit $?
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fi
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local opt OPTARG
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local -i OPTIND
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while getopts "hvfksr:" opt "$@"; do
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case "$opt" in
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h)
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usage
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return 0
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;;
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v)
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usage_version
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return 0
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;;
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f)
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# Silently ignore -f
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;;
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k)
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kill_instance
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return
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;;
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s)
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get_status
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return
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;;
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r)
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reload "$OPTARG"
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return
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;;
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\?)
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return 1
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;;
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esac
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done
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shift $((OPTIND - 1))
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if get_instance &>/dev/null; then
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return 0
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fi
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command -v entr &>/dev/null || {
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echo "Command not found: entr" >&2
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display_message -d 0 "Failed to start $name: Command not found: entr"
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return 1
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}
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tmux set-option -g "@$name-pid" $$
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# shellcheck disable=2016
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entr -np sh -c '"$0" -r "$1"' "$self" /_ <<<"$(printf '%s\n' "$(get_base_configs)" "$(get_user_configs)")" &
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# shellcheck disable=2064
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trap "onexit $!" EXIT
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wait
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}
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main "$@"
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