69 lines
1.9 KiB
Bash
Executable File
69 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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readonly user_agent=(--user-agent 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36')
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usage() {
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local program exit_status
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program="$(basename "$0")"
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exit_status="$1"
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echo "usage: ${program} <path_to_app>"
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exit "${exit_status}"
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}
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absolute_path() {
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echo "$(cd "$(dirname "$1")" && pwd)/$(basename "$1")"
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}
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appcast_found_error() {
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local error_reason="$1"
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echo "An appcast was found pointing to ${appcast_url}, but it ${error_reason}. You should:
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1. Check your internet connection.
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2. Try again later.
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3. Contact the developer."
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exit 1
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}
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# exit if no argument (or more than one) was given
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if [[ -z "$1" ]] || [[ -n "$2" ]]; then
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usage 1
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fi
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# get plist
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path_to_app="$(absolute_path "$1")"
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path_to_plist="${path_to_app}/Contents/Info.plist"
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if [[ ! -f "${path_to_plist}" ]]; then
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echo 'You need to use this on a .app bundle. Please verify your target.'
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usage 1
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fi
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# get appcast
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appcast_url="$(defaults read "${path_to_plist}" 'SUFeedURL' 2>/dev/null)"
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if [[ -z "${appcast_url}" ]]; then
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echo 'It appears this app does not have a Sparkle appcast'
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exit 0
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fi
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# validate appcast
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appcast_http_response="$(curl --silent --head "${user_agent[@]}" --write-out '%{http_code}' "${appcast_url}" -o /dev/null)"
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[[ "${appcast_http_response}" != '200' ]] && appcast_found_error "returned a non-200 (OK) HTTP response code (${appcast_http_response})"
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appcast_checkpoint=$(brew cask _appcast_checkpoint --calculate "${appcast_url}")
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[[ "${appcast_checkpoint}" == 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855' ]] && appcast_found_error 'seems to be empty'
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# output appcast
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echo "A Sparkle appcast was found. You should add it to your cask as
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appcast '${appcast_url}',
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checkpoint: '${appcast_checkpoint}'
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You should likely also add 'auto_updates true'"
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exit 0
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