Jörn-Michael Miehe
bc40c2e4d5
- add `download_gui` to the `common` script - unify indentation - prefer `notify-send` over `zenity` for better notifications
70 lines
1.7 KiB
Bash
70 lines
1.7 KiB
Bash
#!/bin/sh
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# check if a command is available
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has_command() { # $command
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command -v "${1}" 1>/dev/null 2>/dev/null
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}
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needs_commands() { # $status $cmd1 $cmd2 ...
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_nc_status="${1}"
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shift 1
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for _nc_cmd in "${@}"; do
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if ! has_command "${_nc_cmd}"; then
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echo "Command '${_nc_cmd}' not available!" >&2
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exit "${_nc_status}"
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fi
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done
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}
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download_gui() { # $uri $file $sha256
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needs_commands "curl" "zenity" "sha256sum" || return 1
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echo "Downloading '${1}' to '${2}'"
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curl --show-error --fail --location \
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--output "${2}" \
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"${1}" &
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_dg_curlpid=$!
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yes | zenity \
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--progress --pulsate --auto-close \
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--title="Downloading" \
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--text="Downloading '${2}' ..." &
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_dg_zenpid=$!
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while kill -0 "${_dg_curlpid}" 2>/dev/null; do
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if ! kill -0 "${_dg_zenpid}" 2>/dev/null; then
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# progress bar died; ask for abort
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if zenity \
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--question \
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--text="Abort Download?"; then
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kill "${_dg_curlpid}" 2>/dev/null || true
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echo "Download cancelled!" >&2
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break
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fi
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# restart progress bar
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yes | zenity \
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--progress --pulsate --auto-close \
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--title="Downloading" \
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--text="Downloading '${2}' ..." &
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_dg_zenpid=$!
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fi
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sleep 0.2
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done
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kill "${_dg_zenpid}" 2>/dev/null || true
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wait "${_dg_curlpid}"
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if [ -z "${3}" ]; then
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echo "No SHA256 (OK)!" >&2
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return 0
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elif [ "$( sha256sum "${2}" | cut -d' ' -f1 )" = "${3}" ]; then
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echo "SHA256 ${3} OK!" >&2
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return 0
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else
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echo "SHA256 ${3} mismatch!" >&2
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return 1
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fi
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}
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