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8ffa3cf439
The previous behavior was incorrect because `if` was checking the return status of the `[` command which was never going to be an error. `[` seems to only return an error if no args are provided. This was basically a useless use of `[` anyway since it was just meant as a straight interpretation of command exit, something that `if` can do itself. Compare: ```sh [ ]; echo ?=$? [ /bin/false ]; echo ?=$? if [ /bin/false ]; then echo this is the unintended bug; fi if /bin/false; then echo this will not be printed; fi ```
112 lines
2.9 KiB
Bash
Executable file
112 lines
2.9 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 uliity 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-$datetime.png)
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## `grimshot save screen ~/screenshot.png` - to save screenshot under ~/screenshot.png
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## `grimshot` - usage
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## `grimshot check` - verify if tools are installed
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ACTION=${1:-usage}
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SUBJECT=${2:-screen}
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FILE=${3:-$(xdg-user-dir PICTURES)/$(date +'Grimshot %Y-%m-%d %H-%M-%S.png')}
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if [ "$ACTION" = "usage" ] ; then
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echo "Usage:"
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echo " grimshot copy|save win|screen|area [FILE]"
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echo "Troubleshoot:"
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echo " grimshot check"
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exit
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fi
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notify() {
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notify-send -t 3000 -a grimshot "$@"
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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=$2
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if [ -z "$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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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" "$GEOM"
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wl-copy --type image/png < "$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"; 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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