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https://github.com/swaywm/sway.git
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25a0130e81
Show the usage output when an invalid command is received. Otherwise things like `grimshot --help` save a screenshot, which is really unexpected and hurts users trying to remember the right commands / arguments.
140 lines
3.9 KiB
Bash
Executable file
140 lines
3.9 KiB
Bash
Executable file
#!/bin/sh
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## Grimshot: a helper for screenshots within sway
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## Requirements:
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## - `grim`: screenshot utility for wayland
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## - `slurp`: to select an area
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## - `swaymsg`: to read properties of current window
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## - `wl-copy`: clipboard utility
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## - `jq`: json utility to parse swaymsg output
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## - `notify-send`: to show notifications
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## - `mktemp`: to create a temporary file
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## Those are needed to be installed, if unsure, run `grimshot check`
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##
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## Examples:
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## `grimshot copy win` - to copy current window
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## `grimshot save area` - to select area and save it to default file (Pictures/Grimshot-$datetime.png)
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## `grimshot save screen ~/screenshot.png` - to save screenshot under ~/screenshot.png
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## `grimshot save output ~/screenshot.png` - to save screenshot under ~/screenshot.png
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## `grimshot` - usage
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## `grimshot check` - verify if tools are installed
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getTargetDirectory() {
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test -f ${XDG_CONFIG_HOME:-~/.config}/user-dirs.dirs && \
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source ${XDG_CONFIG_HOME:-~/.config}/user-dirs.dirs
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echo ${XDG_SCREENSHOTS_DIR:-${XDG_PICTURES_DIR:-$HOME}}
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}
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ACTION=${1:-usage}
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SUBJECT=${2:-screen}
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FILE=${3:-$(getTargetDirectory)/$(date -Ins).png}
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if [ "$ACTION" != "save" ] && [ "$ACTION" != "copy" ] && [ "$ACTION" != "check" ]; then
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echo "Usage:"
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echo " grimshot (copy|save) [win|screen|output|area] [FILE]"
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echo " grimshot check"
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echo " grimshot usage"
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echo ""
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echo "Commands:"
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echo " copy: Copy the screenshot data into the clipboard."
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echo " save: Save the screenshot to a regular file."
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echo " check: Verify if required tools are installed and exit."
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echo " usage: Show this message and exit."
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echo ""
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echo "Targets:"
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echo " win: Currently active window."
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echo " screen: All visible outputs."
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echo " output: Currently active output."
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echo " region: Manually select a region."
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exit
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fi
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notify() {
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notify-send -t 3000 -a grimshot "$@"
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}
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notifyOk() {
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TITLE=${2:-"Screenshot"}
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MESSAGE=${1:-"OK"}
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notify "$TITLE" "$MESSAGE"
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}
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notifyError() {
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TITLE=${2:-"Screenshot"}
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MESSAGE=${1:-"Error taking screenshot with grim"}
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notify -u critical "$TITLE" "$MESSAGE"
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}
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die() {
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MSG=${1:-Bye}
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notifyError "Error: $MSG"
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exit 2
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}
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check() {
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COMMAND=$1
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if command -v "$COMMAND" > /dev/null 2>&1; then
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RESULT="OK"
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else
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RESULT="NOT FOUND"
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fi
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echo " $COMMAND: $RESULT"
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}
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takeScreenshot() {
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FILE=$1
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GEOM=$2
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OUTPUT=$3
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if [ ! -z "$OUTPUT" ]; then
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grim -o "$OUTPUT" "$FILE" || die "Unable to invoke grim"
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elif [ -z "$GEOM" ]; then
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grim "$FILE" || die "Unable to invoke grim"
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else
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grim -g "$GEOM" "$FILE" || die "Unable to invoke grim"
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fi
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}
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if [ "$ACTION" = "check" ] ; then
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echo "Checking if required tools are installed. If something is missing, install it to your system and make it available in PATH..."
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check grim
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check slurp
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check swaymsg
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check wl-copy
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check jq
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check notify-send
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check mktemp
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exit
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elif [ "$SUBJECT" = "area" ] ; then
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GEOM=$(slurp -d)
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WHAT="Area"
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elif [ "$SUBJECT" = "win" ] ; then
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FOCUSED=$(swaymsg -t get_tree | jq -r 'recurse(.nodes[]?, .floating_nodes[]?) | select(.focused)')
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GEOM=$(echo "$FOCUSED" | jq -r '.rect | "\(.x),\(.y) \(.width)x\(.height)"')
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APP_ID=$(echo "$FOCUSED" | jq -r '.app_id')
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WHAT="$APP_ID window"
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elif [ "$SUBJECT" = "screen" ] ; then
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GEOM=""
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WHAT="Screen"
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elif [ "$SUBJECT" = "output" ] ; then
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GEOM=""
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OUTPUT=$(swaymsg -t get_outputs | jq -r '.[] | select(.focused)' | jq -r '.name')
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WHAT="$OUTPUT"
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else
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die "Unknown subject to take a screen shot from" "$SUBJECT"
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fi
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if [ "$ACTION" = "copy" ] ; then
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TMP=$(mktemp) || die "Unable to create temp file: is mktemp installed?"
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takeScreenshot "$TMP" "$GEOM" "$OUTPUT"
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wl-copy --type image/png < "$TMP" || die "Clipboard error"
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rm "$TMP"
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notifyOk "$WHAT copied to buffer"
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else
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if takeScreenshot "$FILE" "$GEOM" "$OUTPUT"; then
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TITLE="Screenshot of $SUBJECT"
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MESSAGE=$(basename "$FILE")
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notifyOk "$MESSAGE" "$TITLE"
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else
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notifyError "Error taking screenshot with grim"
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fi
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fi
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