only download db if newer, -U to force (#15)
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83d3c35496
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45
whatprovides
45
whatprovides
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@ -8,8 +8,8 @@ DB_UPDATES_URL="https://dl.bintray.com/termux/metadata/whatprovides-db/whatprovi
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show_usage () {
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{
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echo
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echo "Usage: $SCRIPT_NAME [-u] path/to/file"
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echo " $SCRIPT_NAME -p [-u] package"
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echo "Usage: $SCRIPT_NAME [-u|-U] path/to/file"
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echo " $SCRIPT_NAME -p [-u|-U] package"
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echo
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echo "Find out packages using specific files."
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echo
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@ -22,6 +22,8 @@ show_usage () {
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echo
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echo " -u Update the database."
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echo
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echo " -U Redownload the database even if it's not updated."
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echo
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echo " -q Quiet mode. Suppress informational messages."
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echo
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} >&2
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@ -35,26 +37,36 @@ update_database() {
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rm -f "${DB_PATH}.gz"
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fi
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if ! ${FORCE_UPDATE} && [ -e "${DB_PATH}" ]; then
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NEWER=(--time-cond "${DB_PATH}")
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else
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NEWER=()
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fi
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if ! ${QUIET}; then
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echo "[*] Downloading the new database..." >&2
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echo >&2
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curl --fail --retry 3 --retry-connrefused --retry-delay 1 --location \
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--output "${DB_PATH}.gz" "${DB_UPDATES_URL}"
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"${NEWER[@]}" --output "${DB_PATH}.gz" "${DB_UPDATES_URL}"
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echo >&2
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echo "[*] Installing..." >&2
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else
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curl --silent --fail --retry 3 --retry-connrefused --retry-delay 1 \
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--location --output "${DB_PATH}.gz" "${DB_UPDATES_URL}"
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--location "${NEWER[@]}" --output "${DB_PATH}.gz" "${DB_UPDATES_URL}"
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fi
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rm -f "${DB_PATH}"
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zcat "${DB_PATH}.gz" > "${DB_PATH}"
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rm -f "${DB_PATH}.gz"
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if ! ${QUIET}; then
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echo "[*] Finished." >&2
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if [ -e "${DB_PATH}.gz" ]; then
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if ! ${QUIET}; then
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echo "[*] Installing..." >&2
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fi
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zcat "${DB_PATH}.gz" > "${DB_PATH}"
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rm -f "${DB_PATH}.gz"
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if ! ${QUIET}; then
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echo "[*] Finished." >&2
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fi
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elif ! ${QUIET}; then
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echo "[*] No update done." >&2
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fi
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}
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@ -70,13 +82,22 @@ check_database() {
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REVERSE_MODE=false
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DO_UPDATE=false
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FORCE_UPDATE=false
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QUIET=false
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while (($# > 0)); do
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case "$1" in
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-h) show_usage; exit 0;;
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-p) REVERSE_MODE=true;;
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-q) QUIET=true;;
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-u) DO_UPDATE=true;;
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-U) FORCE_UPDATE=true;& # fall-through
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-u)
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if ${DO_UPDATE}; then
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echo "-u and -U are mutually exclusive." >&2
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show_usage
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exit 1
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fi
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DO_UPDATE=true
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;;
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-*)
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echo >&2
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echo "Unknown option '$1'." >&2
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