ALPM hook script to check if your gnome extensions are compatible with the next gnome shell release

check-gnome-compat.sh

#!/usr/bin/env bash
# check if your enabled GNOME Shell extensions support the next GNOME version.
# depends: curl, jq

set -euo pipefail

API="https://extensions.gnome.org/extension-info/?uuid="

RED=$'\033[0;31m'
GREEN=$'\033[0;32m'
YELLOW=$'\033[0;33m'
RESET=$'\033[0m'

UPDATE_DATA=$(pacman -Qu gnome-shell 2>/dev/null) || true

if [[ -z "$UPDATE_DATA" ]]; then
    echo "Couldn't find any updates for gnome-shell."
    exit 0
fi

# "gnome-shell 1:49.5-1 -> 1:50.0-1"  — strip epoch (N:) from both sides
GNOME_VERSION=$(echo "$UPDATE_DATA" | grep -oP '\d+(?=\.\d+-\d+ ->)')
GNOME_VERSION_NEXT=$(echo "$UPDATE_DATA" | grep -oP '(?<=-> )[\d:]+' | sed 's/^[0-9]*://' | grep -oP '^\d+')

if [[ "$GNOME_VERSION_NEXT" -le "$GNOME_VERSION" ]]; then
    echo "No major version change ($GNOME_VERSION -> $GNOME_VERSION_NEXT), nothing to check."
    exit 0
fi

# get extension uuids
mapfile -t UUIDS < <(/usr/bin/gnome-extensions list --enabled)

if [[ ${#UUIDS[@]} -eq 0 ]]; then
    echo "No enabled extensions found." >&2
    exit 1
fi

echo -e "\nGNOME $GNOME_VERSION --> $GNOME_VERSION_NEXT extension compatibility check"

COMPATIBLE=0
INCOMPATIBLE=0
UNKNOWN=0

check_extension() {
    local uuid="$1"
    local encoded
    # url encode the uuid
    encoded=$(jq --raw-input --raw-output @uri <<< "$uuid")
    local url="${API}${encoded}"

    local http_code body
    body=$(curl --fail --silent --show-error --max-time 10 --write-out "\n%{http_code}" "$url" 2>/dev/null) || true
    # read http code from last line
    http_code=$(tail -1 <<< "$body")
    body=$(sed '$d' <<< "$body")

    if [[ "$http_code" == "404" || -z "$body" ]]; then
        echo "[${YELLOW}??${RESET}]  $uuid  (not found)"
        ((UNKNOWN++)) || true
        return
    fi

    local name has_version
    name=$(jq --raw-output '.name // ""' <<< "$body" 2>/dev/null || echo "")
    has_version=$(jq --raw-output --arg v "$GNOME_VERSION_NEXT" 'if .shell_version_map[$v] then "yes" else "no" end' <<< "$body" 2>/dev/null || echo "no")

    local display="$uuid"
    [[ -n "$name" ]] && display="$name ($uuid)"

    if [[ "$has_version" == "yes" ]]; then
        echo "[${GREEN}OK${RESET}]  $display"
        ((COMPATIBLE++)) || true
    else
        local latest_shell
        latest_shell=$(jq --raw-output '.shell_version_map | keys | map(select(test("^[0-9]+$"))) | map(tonumber) | max // "?" | tostring' <<< "$body" 2>/dev/null || echo "?")
        echo "[${RED}NO${RESET}]  $display  (latest: v$latest_shell)"
        ((INCOMPATIBLE++)) || true
    fi
}

for uuid in "${UUIDS[@]}"; do
    [[ -z "$uuid" ]] && continue
    check_extension "$uuid"
    # dont be too quick
    sleep 0.15
done

echo -e "\nFor GNOME $GNOME_VERSION_NEXT: $COMPATIBLE compatible, $INCOMPATIBLE incompatible, $UNKNOWN unknown"

if [[ $INCOMPATIBLE -gt 0 ]]; then
    echo -e "\n${RED}Some extensions are not compatible with the next GNOME version. Please update your IgnorePkg.${RESET}\n"
    exit 1
fi