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Add script for getting github notifications on desktop
This commit is contained in:
parent
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257
home/.local/bin/scripts/gh-notification
Executable file
257
home/.local/bin/scripts/gh-notification
Executable file
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#!/bin/sh
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# Parse arguments
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# ------------------------------------------------------------------------------------
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ALL=0
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VERBOSE=0
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VERY_VERBOSE=0
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VERY_VERY_VERBOSE=0
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TEMP_SHOW=0
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DRY_RUN=0
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NO_CACHE=0
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NO_DISPLAY=0
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URGENCY="normal"
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RESET=0
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while [ "$1" ]; do
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case "$1" in
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-h | --help)
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cat << EOF
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gh-notification is a tool that scrapes unread github notifications
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It uses github-cli with meiji163/gh-notify addon to obtain the unread notifications
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these are then parsed and sent as desktop notifications with notify-send
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Options:
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-a | --all: Also process already read notifications
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-t | --temp-files: Show names of used temporary files for each notification
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-v | --verbose: Shows info about what's happening.
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-vv | --very-verbose: Implies --verbose, shows some more info about what's happening
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-vvv | --very-very-verbose: Implies --very-verbose and --temp-files, shows even more details, usually just for debugging
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-d | --dry-run: Run without sending any notificatinos, when ran with -r, this will also prevent any actual cache file removal
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-nc | --no-cache: Ignore the cache and send all found notifications, even if they were already sent before.
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-nd | --no-display: When the script is ran from headless mode (such as by crontab), this will still attempt to set the DISPLAY and send the desktop notification
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-r | --reset: Resets notification cache (storing which notifications were already sent), skips notification sending, WARNING: removes the whole cache, regardless of '--all')
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-u | --urgency [urgency-level]: pass over notify-send urgency attribute (low, normal, critical)
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EOF
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exit 0
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;;
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-a | --all)
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ALL=1
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;;
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-t | --temp-files)
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TEMP_SHOW=1
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;;
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-v | --verbose)
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VERBOSE=1
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;;
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-vv | --very-verbose)
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VERBOSE=1
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VERY_VERBOSE=1
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;;
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-vvv | --very-very-verbose)
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VERBOSE=1
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TEMP_SHOW=1
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VERY_VERBOSE=1
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VERY_VERY_VERBOSE=1
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;;
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-d | --dry-run)
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DRY_RUN=1
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;;
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-nc | --no-cache)
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NO_CACHE=1
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;;
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-nd | --no-display)
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NO_DISPLAY=1
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;;
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-u | --urgency)
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URGENCY="$2"
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shift
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;;
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-r | --reset)
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RESET=1
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;;
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* )
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echo "Unknown argument '$1', use -h or --help for help"
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exit 1
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;;
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esac
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shift
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done
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# Perform cache resetting, if requested
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# ------------------------------------------------------------------------------------
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if [ $RESET -eq 1 ]; then
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if [ $NO_CACHE -eq 1 ]; then
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echo "Can't ignore cache when resetting the cache..."
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exit 1
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fi
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out="$(find /tmp -maxdepth 1 -name 'gh-notification-*' 2>/dev/null)"
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total="$(printf "$out\n" | wc -l)"
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# Since we always end with a newline (to count the last entry as a line), we always get
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# at least 1 as a total here, even if $out is empty. If we didn't use the \n, we'd always
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# get 0, even if there was a single line, since it wasn't ended with a newline. To figure
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# out whether there really is a line or not when we get a total of 1, we run character
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# amount check as well
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[ $total -eq 1 ] && [ "$(printf "$out" | wc -c)" -eq 0 ] && total=0
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if [ $total -gt 0 ]; then
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# Since the loop is running in a pipe, it can't modify variables, but we need to know
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# which files have failed to be removed, so to get that information, we store it in a
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# teporary file
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fail_files_file="$(mktemp)"
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printf "$out\n" | while read -r file_name; do
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# If desired, let user know about the found notification cache file
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if [ $VERY_VERBOSE -eq 1 ] || [ $TEMP_SHOW -eq 1 ]; then
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contents="$(cat "$file_name")"
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title="$(printf "$contents" | awk -F '~@~' '{ print $1 }')"
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echo "Found cache tempfile: '$file_name' - $title"
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if [ $VERY_VERY_VERBOSE -eq 1 ]; then
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description="$(printf "$contents" | awk -F '~@~' '{ print $2 }')"
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echo "Notification description: $description"
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fi
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fi
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if [ $DRY_RUN -ne 1 ]; then
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# In case `rm` fails, keep track of which files it failed on
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if ! rm "$file_name" 2>/dev/null; then
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printf "$file_name\n" >> "$fail_files_file"
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fi
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else
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[ $VERY_VERY_VERBOSE -eq 1 ] && echo "Tempfile removal skipped (dry-run)"
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fi
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# Add a new-line separator on very very verbose to group prints from each iteration
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[ $VERY_VERY_VERBOSE -eq 1 ] && echo ""
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done
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# Recover failed files from the temporary file
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failed_files="$(cat "$fail_files_file")"
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failed="$(printf "$fail_files_file" | wc -l)"
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rm "$fail_files_file"
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if [ $VERBOSE -eq 1 ]; then
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echo "Notification cache was reset."
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removed_count="$(($total-$failed))"
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if [ $DRY_RUN -eq 1 ]; then
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echo "Removed $removed_count files (dry-run: no files were actually removed)"
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else
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echo "Removed $removed_count files"
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fi
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fi
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# If some cache files were'nt removed successfully, inform the user about it
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# regardless of verbosity, this shouldn't go silent, even though it may be fine
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if [ $failed -gt 0 ]; then
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echo "WARNING: Failed to remove $failed files."
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echo "You probably don't have permission to remove these."
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echo "Perhaps these were made by someone else? If so, you can ignore this warning."
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if [ $VERBOSE -eq 0 ]; then
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echo "Run with --verbose to show exactly which files weren't removed."
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else
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echo "These are:"
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echo "$fail_files"
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fi
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fi
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else
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[ $VERBOSE -eq 1 ] && echo "No cache files found, nothing to reset"
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fi
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exit 0
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fi
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# Helper functins
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# ------------------------------------------------------------------------------------
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# This runs notify-send, and if NO_DISPLAY is set and we're running in headless
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# mode, this will still try to send the notification by manually setting DISPLAY
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send_notify() {
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if [ $NO_DISPLAY -eq 1 ]; then
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XDG_RUNTIME_DIR="/run/user/$(id -u)" \
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DISPLAY=:0 \
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notify-send --urgency="$URGENCY" "$1" "$2"
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else
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notify-send --urgency="$URGENCY" "$1" "$2"
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fi
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}
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# Obtain notifications and show them, if they weren't showed (aren't in cache) already
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# ------------------------------------------------------------------------------------
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# Request unread notifications with gh-notify extension for github-cli
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[ $ALL -eq 1 ] && out="$(gh notify -s -a)" || out="$(gh notify -s)"
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total="$(printf "$out\n" | wc -l)"
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# Since we always end with a newline (to count the last entry as a line), we always get
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# at least 1 as a total here, even if $out is empty. If we didn't use the \n, we'd always
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# get 0, even if there was a single line, since it wasn't ended with a newline. To figure
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# out whether there really is a line or not when we get a total of 1, we run character
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# amount check as well
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[ $total -eq 1 ] && [ "$(printf "$out" | wc -c)" -eq 0 ] && total=0
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# Only run if we actually found some notifications
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if [ $total -gt 0 ]; then
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# Since the loop is running in a pipe, it can't modify variables, but we need to know
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# how many notifications were sent, so to ge that information, we store it in a
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# temporary file
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sent_count_file="$(mktemp)"
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printf "0" > "$sent_count_file"
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# Go through each notification, one by one
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printf "$out\n" | while read -r line; do
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# Parse out the name and the description from the output
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name="$(echo "$line" | awk '{print $3 " (" $4 ")"}' | sed 's/\x1b\[[0-9;]*m//g')"
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description="$(echo "$line" | awk '{for (i=5; i<NF; i++) printf $i " "; print $NF}' | sed 's/\x1b\[[0-9;]*m//g')"
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[ $VERY_VERBOSE -eq 1 ] && echo "Found notification $name"
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[ $VERY_VERY_VERBOSE -eq 1 ] && echo "Description: $description"
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# Create hash from the name and description and use it to construct
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# a path to a temporary file
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hashsum="$(sum <<< "$name$description" | cut -f 1 -d ' ')"
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tmpname="/tmp/gh-notification-$hashsum"
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[ $TEMP_SHOW -eq 1 ] && echo "Tempfile: $tmpname"
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# If the temporary file is already present, this notification was already
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# send and we don't want to re-send it
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# Only sent the notification if it wasn't already cached (doesn't have temp file)
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# this avoids resending the same notifications
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if [ ! -e "$tmpname" ] || [ $NO_CACHE -eq 1 ]; then
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if [ $DRY_RUN -eq 1 ]; then
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[ $VERY_VERBOSE -eq 1 ] && echo "Sending notification (dry-run, no actual notification was sent)"
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else
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[ $VERY_VERBOSE -eq 1 ] && echo "Sending notification"
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send_notify "$name" "$description"
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# Create the tempfile so that in the next run, we won't resend this notification again
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# NOTE: We're storing the name and description into this file to make it easier
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# to figure out what notification the tempfile belongs to, with ~@~ separator
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printf "$name~@~$description" > "$tmpname"
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fi
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# Keep track of how many notifications were sent (didn't have a cache file)
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sent="$(cat "$sent_count_file")"
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sent="$(($sent+1))"
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printf "$sent" > "$sent_count_file"
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else
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[ $VERY_VERBOSE -eq 1 ] && echo "Skipping (cached) - notification already sent"
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fi
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# Add a new-line separator on very verbose to group prints from each iteration
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[ $VERY_VERBOSE -eq 1 ] && echo ""
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done
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# Recover amount of sent notifications from the temporary file
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sent="$(cat "$sent_count_file")"
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rm "$sent_count_file"
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if [ $VERBOSE -eq 1 ]; then
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unsent="$(($total-$sent))"
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if [ $sent -eq $total ]; then
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echo "Found and sent $total new notifications"
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elif [ $unsent -eq $total ]; then
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echo "Found $total notifications, all of which were already sent (no new notifications to send)"
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else
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echo "Found $total notifications, of which $sent were new and sent ($unsent were skipped - cached/already sent)"
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fi
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fi
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else
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[ $VERBOSE -eq 1 ] && echo "No new notifications"
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fi
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