83 lines
1.8 KiB
Bash
Executable File
83 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
set -o pipefail
|
|
|
|
RUST_TEMPLATE="lfs/rust-rand"
|
|
|
|
fetch_latest_version() {
|
|
local name="${1}"
|
|
|
|
if ! curl --silent "https://crates.io/api/v1/crates/${name}" | \
|
|
jq --raw-output .crate.max_stable_version; then
|
|
echo "${0}: Could not find the latest stable version of ${name}" >&2
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
main() {
|
|
local name="${1}"
|
|
local version="${2}"
|
|
|
|
if [ -z "${name}" ]; then
|
|
echo "${0}: You need to pass a name of a crate" >&2
|
|
return 2
|
|
fi
|
|
|
|
if [ -z "${version}" ]; then
|
|
version="$(fetch_latest_version "${name}")"
|
|
if [ -z "${version}" ]; then
|
|
# error message has already been printed
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
# Compose download URL
|
|
local url="https://crates.io/api/v1/crates/${name}/${version}/download"
|
|
local download="$(mktemp)"
|
|
|
|
# Perform download
|
|
if ! curl -L "${url}" -o "${download}"; then
|
|
echo "${0}: Could not download ${name}-${version}" >&2
|
|
unlink "${download}"
|
|
return 1
|
|
fi
|
|
|
|
# Check if download is an orderly tar file
|
|
if ! tar tvf "${download}" &>/dev/null; then
|
|
echo "${0}: Download is not a tar file" >&2
|
|
unlink "${download}"
|
|
return 1
|
|
fi
|
|
|
|
# Hash the downloaded file
|
|
local b2sum="$(b2sum "${download}" | awk '{ print $1 }')"
|
|
if [ -z "${b2sum}" ]; then
|
|
echo "${0}: Could not hash download" >&2
|
|
unlink "${download}"
|
|
return 1
|
|
fi
|
|
|
|
local filename="cache/${name}-${version}.tar.gz"
|
|
|
|
# Move to final destination
|
|
if ! install -m 644 "${download}" "${filename}"; then
|
|
echo "${0}: Could not move downloaded file to ${filename}" >&2
|
|
unlink "${download}"
|
|
return 1
|
|
fi
|
|
|
|
# Remove download
|
|
unlink "${download}"
|
|
|
|
# Create a new LFS file
|
|
sed < "${RUST_TEMPLATE}" > "lfs/rust-${name}" \
|
|
-e "s/^VER.*/VER = ${version}/" \
|
|
-e "s/^THISAPP.*/THISAPP = ${name}-\$(VER)/" \
|
|
-e "s/^\$(DL_FILE)_BLAKE2.*/\$(DL_FILE)_BLAKE2 = ${b2sum}/"
|
|
|
|
echo "Done"
|
|
return 0
|
|
}
|
|
|
|
main "$@" || exit $?
|