Marty Oehme
e015c4b5f1
Clarified naming scheme in sxhkd-chain-labels documentation. Updated year for vim copyright shortcut. Enabled automatic copying to clipboard by neovim for every yank action.
193 lines
5.1 KiB
Bash
Executable file
193 lines
5.1 KiB
Bash
Executable file
#!/usr/bin/env sh
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# output is to stdout unless explicitly set through -o or env var
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OUTPUTF="$SXHKD_OUTPUTF"
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# set fifo input file, according (somewhat) to xdg
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if [ -n "$SXHKD_FIFO" ]; then
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FIFO="$SXHKD_FIFO"
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elif [ -p "${XDG_RUNTIME_DIR}"/sxhkd_fifo ]; then
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FIFO="${XDG_RUNTIME_DIR}"/sxhkd_fifo
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elif [ -p "${XDG_CACHE_HOME:-$HOME/.cache}"/sxhkd_fifo ]; then
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FIFO="${XDG_CACHE_HOME:-$HOME/.cache}"/sxhkd_fifo
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elif [ -p "$HOME/.sxhkd_fifo" ]; then
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FIFO="$HOME/.sxhkd_fifo"
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fi
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# set label config file, according (somewhat) to xdg
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if [ -n "$SXHKD_LABELCONFIG" ]; then
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LABELCONFIG="$SXHKD_LABELCONFIG"
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elif [ -f "${XDG_CONFIG_HOME:-$HOME/.config}"/sxhkd/chain-labels.conf ]; then
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LABELCONFIG="${XDG_CONFIG_HOME:-$HOME/.config}"/sxhkd/chain-labels.conf
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elif [ -f "$HOME/.chain-labels.conf" ]; then
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LABELCONFIG="$HOME/.chain-labels.conf"
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fi
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SXHKDRC_FILE="$XDG_CONFIG_HOME"/sxhkd/sxhkdrc
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main() {
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while read -r event; do
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detect_event "$event"
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done <"$FIFO"
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}
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detect_event() {
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ev="$(echo "$1" | sed -e 's/^H.*$/hotkey/;s/^C.*$/command/;s/^BBegin chain.*$/chainstart/;s/^EEnd chain.*$/chainend/;')"
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case $ev in
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hotkey) ev_hotkey "$(echo "$1" | sed -e 's/^H//')" ;;
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# command) ev_command "$(echo "$1" | sed -e 's/^C//')" ;;
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chainstart) ev_chainstart "$(echo "$1" | sed -e 's/^B//')" ;;
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chainend) ev_chainend "$(echo "$1" | sed -e 's/^E//')" ;;
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*) ;;
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esac
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}
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send_msg() {
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if [ -n "$OUTPUTF" ]; then
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echo "$1" >"$OUTPUTF"
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else
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echo "$1"
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fi
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}
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ev_hotkey() {
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LAST_HOTKEY="$1"
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}
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# compare labels to last hotkey, return mode name
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ev_chainstart() {
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[ -z "$LAST_HOTKEY" ] && return 1
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found=$(echo "$LABELS" | sed -e "/$LAST_HOTKEY/!d;s/^\(.\+\):.*$/\1/")
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send_msg "$found"
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}
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ev_chainend() {
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send_msg ""
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}
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# TODO add option to also display last command done in chain
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# ev_command() {
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# send_msg "command: $1"
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# }
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# read config from file, remove comments (lines starting with #) and empty lines
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read_config() {
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[ ! -f "$1" ] && return 1
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parse_labels "$(cat "$1")"
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}
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# parse sxhkdrc for mode compatible comments
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read_sxhkdrc() {
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[ ! -f "$1" ] && return 1
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_sxhkdrc_content="$(sed -e '/^# mode:/!d;s/^# mode://' <"$1")"
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parse_labels "$_sxhkdrc_content"
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}
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# append
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parse_labels() {
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LABELS="${LABELS}$(echo "$1" | sed -e '/^#/d;/^[[:blank:]]*$/d')"
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}
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get_help() {
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printf \
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"Usage: sxhkd-chain-labels [-c config file][-o output file][-s input pipe]
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By default will take the input from the input pipe (at XDG_RUNTIME_DIR/sxhkd_fifo) and
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print the current sxhkd chain mode to stdout. That means, sxhkd needs to be started
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with a fifo pipe running, ideally to the XDG_RUNTIME_DIR:
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mkfifo \$XDG_RUNTIME_DIR/sxhkd_fifo && sxhkd -s \$XDG_RUNTIME_DIR/sxhkd_fifo
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When given a key combination which maps to a specific mode, it will print out the name
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of the mode instead. These maps can be passed with -c flag, specifying an options file.
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By default it will look in \$XDG_CONFIG_HOME/sxhkd/sxhkd-chain-labels.conf
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When passed the -o flag it will replace the contents of the file passed in with the
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current sxhkd chain mode, emptying the file when no mode is active.
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Default lookup places for files, in descending order:
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:input fifo
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\$SXHKD_FIFO (env variable)
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\$XDG_RUNTIME_DIR/sxhkd_fifo
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\$XDG_CACHE_HOME/sxhkd_fifo
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~/.cache/sxhkd_fifo
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~/.sxhkd_fifo
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:label configuration
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\$SXHKD_LABELCONFIG (env variable)
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\$XDG_CONFIG_HOME/sxhkd/chain-labels.conf
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~/.config/sxhkd/chain-labels.conf
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~/.chain-labels.conf
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\$XDG_CONFIG_HOME/sxhkd/sxhkdrc (parsing)
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The label configuration file uses the following format:
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mode name:key chain
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Lines beginning with a # will be ignored. Whitespace is important, sxhkd will, by
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default, put a single space between any component of the key combination.
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An example file chain-labels.conf:
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media:super + alt + m
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system:super + backspace
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Instead of using an explicit configuration file, you can put the chain mode
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information into the regular sxhkdrc as comments. They need to follow this exact format:
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# mode:mode-name:key-chain
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They can occur anywhere in the file. The space before mode is necessary, and # needs to
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be the first character on the line. The above example file as written into the sxhkdrc:
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# mode:media:super + alt + m
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# mode:system:super + backspace
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If an explicit configuration file exists, it will supersede any mode information in the
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sxhkdrc file.
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\n"
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}
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get_version() {
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printf \
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"%s: 0.1
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fifo input pipe:
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%s
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label configuration file:
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%s
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output:
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%s \n" \
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"$0" \
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"$FIFO" \
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"$LABELCONFIG" \
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"${OUTPUTF:-stdout}"
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}
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while getopts "vho:s:c:" opt; do
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case "$opt" in
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\?)
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printf "Usage: sxhkd-chain-labels [-c config file][-o output file][-s input pipe]\n"
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exit 0
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;;
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h)
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get_help
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exit 0
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;;
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v)
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get_version
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exit 0
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;;
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o) OUTPUTF="$OPTARG" ;;
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s) FIFO="$OPTARG" ;;
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c) LABELCONFIG="$OPTARG" ;;
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esac
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done
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shift $((OPTIND - 1))
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[ "${1:-}" = "--" ] && shift
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# look for default label config, prefer config file to parsing sxhkdrc
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[ -z "$LABELS" ] && read_config "$LABELCONFIG"
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[ -z "$LABELS" ] && read_sxhkdrc "$SXHKDRC_FILE"
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main "$@"
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