85 lines
3.9 KiB
Bash
85 lines
3.9 KiB
Bash
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#
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2023 Ricardo Pardini <ricardo@pardini.net>
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# This file is a part of the Armbian Build Framework https://github.com/armbian/build/
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#
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# tl;dr: this function will return the version and download URL of a package.
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# it is very naive, and will only look into a few repos across Debian/Ubuntu.
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function apt_find_upstream_package_version_and_download_url() {
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declare sought_package_name="${1}"
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declare -a package_info_download_urls=()
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declare first_letter_of_sought_package_name="${sought_package_name:0:1}"
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declare mirror_with_slash="undetermined/"
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case "${DISTRIBUTION}" in
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Ubuntu) # try both the jammy-updates and jammy repos, use whatever returns first
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package_info_download_urls+=("https://packages.ubuntu.com/${RELEASE}-updates/${ARCH}/${sought_package_name}/download")
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package_info_download_urls+=("https://packages.ubuntu.com/${RELEASE}/${ARCH}/${sought_package_name}/download")
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mirror_with_slash="${UBUNTU_MIRROR}"
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;;
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Debian)
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package_info_download_urls+=("https://packages.debian.org/${RELEASE}/${ARCH}/${sought_package_name}/download")
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mirror_with_slash="${DEBIAN_MIRROR}"
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;;
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*)
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exit_with_error "Unknown distribution '${DISTRIBUTION}'"
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;;
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esac
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# if mirror_with_slash does not end with a slash, add it
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if [[ "${mirror_with_slash}" != */ ]]; then
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mirror_with_slash="${mirror_with_slash}/"
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fi
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declare base_down_url="http://${mirror_with_slash}pool/main/${first_letter_of_sought_package_name}/${sought_package_name}"
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declare index package_info_download_url
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# loop over the package_info_download_urls with index and value
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for index in "${!package_info_download_urls[@]}"; do
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package_info_download_url="${package_info_download_urls[$index]}"
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display_alert "Testing URL" "${package_info_download_url}" "debug"
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declare package_info_download_url_file
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package_info_download_url_file="$(mktemp)"
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curl --silent --show-error --max-time 10 "${package_info_download_url}" > "${package_info_download_url_file}" || true # don't fail
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declare package_info_download_url_file_package_name # grep the file for the package name. parse "<kbd>name</kbd>"
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package_info_download_url_file_package_name="$(grep -oP '(?<=<kbd>)[^<]+' "${package_info_download_url_file}" | grep "^${sought_package_name}_" | head -n 1)"
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rm -f "${package_info_download_url_file}"
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display_alert "Package name parsed" "${package_info_download_url_file_package_name}" "debug"
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if [[ "${package_info_download_url_file_package_name}" == "${sought_package_name}_"* ]]; then
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found_package_filename="${package_info_download_url_file_package_name}"
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found_package_down_url="${base_down_url}/${found_package_filename}"
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display_alert "Found package filename" "${found_package_filename} in url ${package_info_download_url}" "debug"
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break
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fi
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done
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if [[ "${found_package_filename}" == "${sought_package_name}_"* ]]; then
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display_alert "Found upstream base-files package filename" "${found_package_filename}" "info"
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else
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display_alert "Could not find package filename for '${sought_package_name}' in '${package_info_download_urls[*]}'" "looking for ${sought_package_name}" "warn"
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return 1
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fi
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# Now we have the package name, lets parse out the version.
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found_package_version="$(echo "${found_package_filename}" | grep -oP '(?<=_)[^_]+(?=_)')"
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display_alert "Found base-files upstream package version" "${found_package_version}" "info"
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# Sanity check...
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declare wanted_package_name="${sought_package_name}_${found_package_version}_${ARCH}.deb"
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if [[ "${found_package_filename}" != "${wanted_package_name}" ]]; then
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display_alert "Found package filename '${found_package_filename}' does not match wanted package name '${wanted_package_name}'" "looking for ${sought_package_name}" "warn"
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return 1
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fi
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# show found_package_down_url
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display_alert "Found package download url" "${found_package_down_url}" "debug"
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return 0
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}
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