172 lines
5.6 KiB
Bash
Executable File
172 lines
5.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# TUI for creating/updating device-specific Hyprland input overrides.
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# Usage: mk-device-exception.sh <target-lua-file>
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set -euo pipefail
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die() { printf 'error: %s\n' "$*" >&2; exit 1; }
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[[ $# -eq 1 ]] || die "Usage: ${0##*/} <target-lua-file>"
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target="$1"
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command -v hyprctl &>/dev/null || die "hyprctl not found"
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command -v dialog &>/dev/null || die "dialog not found"
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command -v jq &>/dev/null || die "jq not found"
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# ---------- device selection ----------
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devices=$(hyprctl devices -j)
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entries=$(jq -r '
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(.keyboards[]?.name | "keyboard\t" + .),
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(.mice[]?.name | "mouse\t" + .)
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' <<<"$devices")
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[[ -z "$entries" ]] && die "No keyboard or mouse devices found"
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if command -v fzf &>/dev/null; then
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selected=$(printf '%s\n' "$entries" \
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| fzf --prompt="Select device: " --height=~10 --with-nth=2.. --delimiter=$'\t')
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else
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echo "Select a device:" >&2
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IFS=$'\n'
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select selected in $entries; do [[ -n "$selected" ]] && break; done
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unset IFS
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fi
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[[ -z "$selected" ]] && exit 1
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type=${selected%%$'\t'*}
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name=${selected#*$'\t'}
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# ---------- parse existing field value from target file ----------
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# Returns the Lua literal for the field (e.g. `"de"`, `15`, `false`).
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get_field() {
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local field="$1" default="$2"
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[[ -f "$target" ]] || { printf '%s' "$default"; return; }
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awk -v dev="$name" -v fld="$field" -v def="$default" '
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/^hl\.device\(\{/ { blk=""; in_blk=1; matched=0 }
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in_blk { blk = blk $0 "\n" }
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in_blk && /name = / { if ($0 ~ "\"" dev "\"") matched=1 }
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in_blk && /^\}\)/ {
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if (matched) {
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n = split(blk, lines, "\n")
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for (i = 1; i <= n; i++) {
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line = lines[i]
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sub(/^[[:space:]]+/, "", line) # strip indentation
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if (line ~ "^" fld "[[:space:]]*=") {
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sub(/^[^=]+=/, "", line) # drop "fieldname = "
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sub(/^[[:space:]]*/, "", line) # strip leading space
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sub(/[[:space:]]*,.*$/, "", line) # drop trailing comma and any inline comment
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print line; exit
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}
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}
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print def; exit
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}
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in_blk = 0
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}
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' "$target"
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}
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# Strip surrounding Lua string quotes for display in form ("de" -> de).
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unquote() { local v="$1"; v="${v#\"}"; v="${v%\"}"; printf '%s' "$v"; }
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# ---------- show form and collect values ----------
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case "$type" in
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keyboard)
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v_layout=$(unquote "$(get_field kb_layout '"de"')")
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v_variant=$(unquote "$(get_field kb_variant '""')")
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v_model=$(unquote "$(get_field kb_model '""')")
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v_options=$(unquote "$(get_field kb_options '""')")
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v_rules=$(unquote "$(get_field kb_rules '""')")
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v_rate=$(get_field repeat_rate 0)
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v_delay=$(get_field repeat_delay 0)
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v_sens=$(get_field sensitivity 0)
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# dialog writes its TUI to stdout (/dev/tty) and the result to stderr.
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values=$(dialog \
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--title "Keyboard exception: $name" \
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--form "" 16 74 8 \
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"kb_layout" 1 1 "$v_layout" 1 17 42 0 \
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"kb_variant" 2 1 "$v_variant" 2 17 42 0 \
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"kb_model" 3 1 "$v_model" 3 17 42 0 \
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"kb_options" 4 1 "$v_options" 4 17 42 0 \
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"kb_rules" 5 1 "$v_rules" 5 17 42 0 \
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"repeat_rate" 6 1 "$v_rate" 6 17 10 0 \
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"repeat_delay" 7 1 "$v_delay" 7 17 10 0 \
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"sensitivity" 8 1 "$v_sens" 8 17 10 0 \
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2>&1 >/dev/tty) || exit 0
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mapfile -t vals <<< "$values"
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new_block="hl.device({
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name = \"$name\",
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kb_layout = \"${vals[0]:-}\",
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kb_variant = \"${vals[1]:-}\",
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kb_model = \"${vals[2]:-}\",
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kb_options = \"${vals[3]:-}\",
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kb_rules = \"${vals[4]:-}\",
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repeat_rate = ${vals[5]:-0},
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repeat_delay = ${vals[6]:-0},
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sensitivity = ${vals[7]:-0},
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})"
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;;
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mouse)
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v_sens=$(get_field sensitivity 0)
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v_accel=$(unquote "$(get_field accel_profile '""')")
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v_left=$(get_field left_handed false)
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v_natural=$(get_field natural_scroll false)
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v_scroll=$(unquote "$(get_field scroll_points '""')")
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values=$(dialog \
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--title "Mouse exception: $name" \
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--form "" 13 74 5 \
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"sensitivity" 1 1 "$v_sens" 1 20 20 0 \
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"accel_profile" 2 1 "$v_accel" 2 20 20 0 \
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"left_handed" 3 1 "$v_left" 3 20 10 0 \
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"natural_scroll" 4 1 "$v_natural" 4 20 10 0 \
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"scroll_points" 5 1 "$v_scroll" 5 20 20 0 \
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2>&1 >/dev/tty) || exit 0
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mapfile -t vals <<< "$values"
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new_block="hl.device({
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name = \"$name\",
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sensitivity = ${vals[0]:-0},
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accel_profile = \"${vals[1]:-}\",
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left_handed = ${vals[2]:-false},
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natural_scroll = ${vals[3]:-false},
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scroll_points = \"${vals[4]:-}\",
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})"
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;;
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esac
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# ---------- replace or append in target file ----------
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[[ -f "$target" ]] || touch "$target"
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# Remove the existing block for this device (no-op if not present).
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tmp=$(mktemp)
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awk -v dev="$name" '
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/^hl\.device\(\{/ { blk = $0 "\n"; in_blk=1; matched=0; next }
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in_blk {
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blk = blk $0 "\n"
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if (/name = / && ($0 ~ "\"" dev "\"")) matched=1
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if (/^\}\)/) {
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if (!matched) printf "%s", blk
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in_blk=0; blk=""
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}
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next
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}
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{ print }
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' "$target" > "$tmp"
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mv "$tmp" "$target"
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# Append the new block, separated by a blank line if the file is non-empty.
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if [[ -s "$target" ]]; then
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[[ "$(tail -c 1 "$target")" != $'\n' ]] && printf '\n' >> "$target"
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printf '\n' >> "$target"
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fi
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printf '%s\n' "$new_block" >> "$target"
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printf 'Written to %s\n' "$target"
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