mirror of
https://github.com/SerenityOS/serenity.git
synced 2026-11-07 04:29:30 -10:00
Lucas Chollet
03220ee363
This will allow Toolchain's scripts to use the same logic. Note that we use a symlink in the Ports directory so Meta/install-ports-tree.sh can just copy the link's destination to have a working and self-contained copy.
132 lines
3.4 KiB
Bash
132 lines
3.4 KiB
Bash
#!/usr/bin/env bash
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# This will be overridden in .port_include.sh
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run_nocd() {
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("$@")
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}
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# 1 = type
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# 2 = path
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MIRROR_URL_PATTERN="^mirror://([^/]+)/(.+)$"
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# shellcheck disable=SC2034
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MIRROR_URLS_gnu="https://ftpmirror.gnu.org/gnu/ https://ftp.gnu.org/gnu/"
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resolve_mirror_urls() {
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local type="${1}"
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local path="${2}"
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local mirror_urls_variable="MIRROR_URLS_${type}"
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local mirrors_string="${!mirror_urls_variable:-}"
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if [ -z "${mirrors_string}" ]; then
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echo "error: Unknown mirror '${type}'" >&2
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return 1
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fi
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local mirrors
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read -ra mirrors <<< "${mirrors_string}"
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local mirror
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for mirror in "${mirrors[@]}"; do
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printf '%s%s\n' "${mirror}" "${path}"
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done
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}
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# FIXME: Migrate users of do_download_file to download_file and remove
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# redundant work from this function.
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do_download_file() {
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local url="$1"
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local filename="$2"
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local accept_existing="${3:-true}"
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local expected_checksum="${4:-}"
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local urls=("${url}")
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local resolved_urls
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if [[ "${url}" =~ ${MIRROR_URL_PATTERN} ]]; then
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local type="${BASH_REMATCH[1]}"
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local path="${BASH_REMATCH[2]}"
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if ! resolved_urls="$(resolve_mirror_urls "${type}" "${path}")"; then
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return 1
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fi
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urls=()
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local resolved_url
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while IFS= read -r resolved_url; do
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urls+=("${resolved_url}")
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done <<< "${resolved_urls}"
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fi
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if $accept_existing && [ -f "$filename" ]; then
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echo "$filename already exists"
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return
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fi
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local download_status=1
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for candidate_url in "${urls[@]}"; do
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echo "Downloading URL: ${candidate_url}"
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if which curl; then
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# shellcheck disable=SC2086
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if run_nocd curl ${curlopts:-} "$candidate_url" --fail -L -o "$filename"; then
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return 0
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else
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download_status="$?"
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rm -f "${filename}"
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fi
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else
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if run_nocd pro "$candidate_url" > "$filename"; then
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if [ -n "${expected_checksum}" ]; then
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actual_checksum="$(sha256sum "$filename" | cut -f1 -d' ')"
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local actual_checksum
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if [ "${actual_checksum}" != "${expected_checksum}" ]; then
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rm -f "${filename}"
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continue
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fi
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fi
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return 0
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else
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download_status="$?"
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rm -f "${filename}"
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fi
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fi
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done
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return "${download_status}"
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}
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download_file() {
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local url="${1}"
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local destination="${2}"
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local checksum="${3}"
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local filename
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filename="$(basename "${url}")"
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local tried_download_again=0
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while true; do
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do_download_file "${url}" "${destination}" true "${checksum}"
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actual_checksum="$(sha256sum "${destination}" | cut -f1 -d' ')"
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if [ "${actual_checksum}" = "${checksum}" ]; then
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break
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fi
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echo "SHA256 checksum of downloaded file '${filename}' does not match!"
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echo "Expected: ${checksum}"
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echo "Actual: ${actual_checksum}"
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rm -f "${destination}"
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echo "Removed erroneous download."
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if [ "${tried_download_again}" -eq 1 ]; then
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echo "Please run script again."
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exit 1
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fi
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echo "Trying to download the file again."
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tried_download_again=1
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done
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}
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