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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,241 @@ | ||
| #!/usr/bin/env sh | ||
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| # This is a wrapper script, that automatically download mill from GitHub release pages | ||
| # You can give the required mill version with --mill-version parameter | ||
| # If no version is given, it falls back to the value of DEFAULT_MILL_VERSION | ||
| # | ||
| # Project page: https://github.com/lefou/millw | ||
| # Script Version: 0.4.12 | ||
| # | ||
| # If you want to improve this script, please also contribute your changes back! | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 | ||
|
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| set -e | ||
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| if [ -z "${DEFAULT_MILL_VERSION}" ] ; then | ||
| DEFAULT_MILL_VERSION="0.11.4" | ||
| fi | ||
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| if [ -z "${GITHUB_RELEASE_CDN}" ] ; then | ||
| GITHUB_RELEASE_CDN="" | ||
| fi | ||
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| MILL_REPO_URL="https://github.com/com-lihaoyi/mill" | ||
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| if [ -z "${CURL_CMD}" ] ; then | ||
| CURL_CMD=curl | ||
| fi | ||
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| # Explicit commandline argument takes precedence over all other methods | ||
| if [ "$1" = "--mill-version" ] ; then | ||
| shift | ||
| if [ "x$1" != "x" ] ; then | ||
| MILL_VERSION="$1" | ||
| shift | ||
| else | ||
| echo "You specified --mill-version without a version." 1>&2 | ||
| echo "Please provide a version that matches one provided on" 1>&2 | ||
| echo "${MILL_REPO_URL}/releases" 1>&2 | ||
| false | ||
| fi | ||
| fi | ||
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| # Please note, that if a MILL_VERSION is already set in the environment, | ||
| # We reuse it's value and skip searching for a value. | ||
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| # If not already set, read .mill-version file | ||
| if [ -z "${MILL_VERSION}" ] ; then | ||
| if [ -f ".mill-version" ] ; then | ||
| MILL_VERSION="$(head -n 1 .mill-version 2> /dev/null)" | ||
| elif [ -f ".config/mill-version" ] ; then | ||
| MILL_VERSION="$(head -n 1 .config/mill-version 2> /dev/null)" | ||
| fi | ||
| fi | ||
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| MILL_USER_CACHE_DIR="${XDG_CACHE_HOME:-${HOME}/.cache}/mill" | ||
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| if [ -z "${MILL_DOWNLOAD_PATH}" ] ; then | ||
| MILL_DOWNLOAD_PATH="${MILL_USER_CACHE_DIR}/download" | ||
| fi | ||
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| # If not already set, try to fetch newest from Github | ||
| if [ -z "${MILL_VERSION}" ] ; then | ||
| # TODO: try to load latest version from release page | ||
| echo "No mill version specified." 1>&2 | ||
| echo "You should provide a version via '.mill-version' file or --mill-version option." 1>&2 | ||
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| mkdir -p "${MILL_DOWNLOAD_PATH}" | ||
| LANG=C touch -d '1 hour ago' "${MILL_DOWNLOAD_PATH}/.expire_latest" 2>/dev/null || ( | ||
| # we might be on OSX or BSD which don't have -d option for touch | ||
| # but probably a -A [-][[hh]mm]SS | ||
| touch "${MILL_DOWNLOAD_PATH}/.expire_latest"; touch -A -010000 "${MILL_DOWNLOAD_PATH}/.expire_latest" | ||
| ) || ( | ||
| # in case we still failed, we retry the first touch command with the intention | ||
| # to show the (previously suppressed) error message | ||
| LANG=C touch -d '1 hour ago' "${MILL_DOWNLOAD_PATH}/.expire_latest" | ||
| ) | ||
|
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| # POSIX shell variant of bash's -nt operator, see https://unix.stackexchange.com/a/449744/6993 | ||
| # if [ "${MILL_DOWNLOAD_PATH}/.latest" -nt "${MILL_DOWNLOAD_PATH}/.expire_latest" ] ; then | ||
| if [ -n "$(find -L "${MILL_DOWNLOAD_PATH}/.latest" -prune -newer "${MILL_DOWNLOAD_PATH}/.expire_latest")" ]; then | ||
| # we know a current latest version | ||
| MILL_VERSION=$(head -n 1 "${MILL_DOWNLOAD_PATH}"/.latest 2> /dev/null) | ||
| fi | ||
|
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||
| if [ -z "${MILL_VERSION}" ] ; then | ||
| # we don't know a current latest version | ||
| echo "Retrieving latest mill version ..." 1>&2 | ||
| LANG=C ${CURL_CMD} -s -i -f -I ${MILL_REPO_URL}/releases/latest 2> /dev/null | grep --ignore-case Location: | sed s'/^.*tag\///' | tr -d '\r\n' > "${MILL_DOWNLOAD_PATH}/.latest" | ||
| MILL_VERSION=$(head -n 1 "${MILL_DOWNLOAD_PATH}"/.latest 2> /dev/null) | ||
| fi | ||
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| if [ -z "${MILL_VERSION}" ] ; then | ||
| # Last resort | ||
| MILL_VERSION="${DEFAULT_MILL_VERSION}" | ||
| echo "Falling back to hardcoded mill version ${MILL_VERSION}" 1>&2 | ||
| else | ||
| echo "Using mill version ${MILL_VERSION}" 1>&2 | ||
| fi | ||
| fi | ||
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| MILL="${MILL_DOWNLOAD_PATH}/${MILL_VERSION}" | ||
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| try_to_use_system_mill() { | ||
| if [ "$(uname)" != "Linux" ]; then | ||
| return 0 | ||
| fi | ||
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| MILL_IN_PATH="$(command -v mill || true)" | ||
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| if [ -z "${MILL_IN_PATH}" ]; then | ||
| return 0 | ||
| fi | ||
|
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| SYSTEM_MILL_FIRST_TWO_BYTES=$(head --bytes=2 "${MILL_IN_PATH}") | ||
| if [ "${SYSTEM_MILL_FIRST_TWO_BYTES}" = "#!" ]; then | ||
| # MILL_IN_PATH is (very likely) a shell script and not the mill | ||
| # executable, ignore it. | ||
| return 0 | ||
| fi | ||
|
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| SYSTEM_MILL_PATH=$(readlink -e "${MILL_IN_PATH}") | ||
| SYSTEM_MILL_SIZE=$(stat --format=%s "${SYSTEM_MILL_PATH}") | ||
| SYSTEM_MILL_MTIME=$(stat --format=%y "${SYSTEM_MILL_PATH}") | ||
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| if [ ! -d "${MILL_USER_CACHE_DIR}" ]; then | ||
| mkdir -p "${MILL_USER_CACHE_DIR}" | ||
| fi | ||
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| SYSTEM_MILL_INFO_FILE="${MILL_USER_CACHE_DIR}/system-mill-info" | ||
| if [ -f "${SYSTEM_MILL_INFO_FILE}" ]; then | ||
| parseSystemMillInfo() { | ||
| LINE_NUMBER="${1}" | ||
| # Select the line number of the SYSTEM_MILL_INFO_FILE, cut the | ||
| # variable definition in that line in two halves and return | ||
| # the value, and finally remove the quotes. | ||
| sed -n "${LINE_NUMBER}p" "${SYSTEM_MILL_INFO_FILE}" |\ | ||
| cut -d= -f2 |\ | ||
| sed 's/"\(.*\)"/\1/' | ||
| } | ||
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| CACHED_SYSTEM_MILL_PATH=$(parseSystemMillInfo 1) | ||
| CACHED_SYSTEM_MILL_VERSION=$(parseSystemMillInfo 2) | ||
| CACHED_SYSTEM_MILL_SIZE=$(parseSystemMillInfo 3) | ||
| CACHED_SYSTEM_MILL_MTIME=$(parseSystemMillInfo 4) | ||
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| if [ "${SYSTEM_MILL_PATH}" = "${CACHED_SYSTEM_MILL_PATH}" ] \ | ||
| && [ "${SYSTEM_MILL_SIZE}" = "${CACHED_SYSTEM_MILL_SIZE}" ] \ | ||
| && [ "${SYSTEM_MILL_MTIME}" = "${CACHED_SYSTEM_MILL_MTIME}" ]; then | ||
| if [ "${CACHED_SYSTEM_MILL_VERSION}" = "${MILL_VERSION}" ]; then | ||
| MILL="${SYSTEM_MILL_PATH}" | ||
| return 0 | ||
| else | ||
| return 0 | ||
| fi | ||
| fi | ||
| fi | ||
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| SYSTEM_MILL_VERSION=$(${SYSTEM_MILL_PATH} --version | head -n1 | sed -n 's/^Mill.*version \(.*\)/\1/p') | ||
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| cat <<EOF > "${SYSTEM_MILL_INFO_FILE}" | ||
| CACHED_SYSTEM_MILL_PATH="${SYSTEM_MILL_PATH}" | ||
| CACHED_SYSTEM_MILL_VERSION="${SYSTEM_MILL_VERSION}" | ||
| CACHED_SYSTEM_MILL_SIZE="${SYSTEM_MILL_SIZE}" | ||
| CACHED_SYSTEM_MILL_MTIME="${SYSTEM_MILL_MTIME}" | ||
| EOF | ||
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| if [ "${SYSTEM_MILL_VERSION}" = "${MILL_VERSION}" ]; then | ||
| MILL="${SYSTEM_MILL_PATH}" | ||
| fi | ||
| } | ||
| try_to_use_system_mill | ||
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| # If not already downloaded, download it | ||
| if [ ! -s "${MILL}" ] ; then | ||
|
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| # support old non-XDG download dir | ||
| MILL_OLD_DOWNLOAD_PATH="${HOME}/.mill/download" | ||
| OLD_MILL="${MILL_OLD_DOWNLOAD_PATH}/${MILL_VERSION}" | ||
| if [ -x "${OLD_MILL}" ] ; then | ||
| MILL="${OLD_MILL}" | ||
| else | ||
| case $MILL_VERSION in | ||
| 0.0.* | 0.1.* | 0.2.* | 0.3.* | 0.4.* ) | ||
| DOWNLOAD_SUFFIX="" | ||
| DOWNLOAD_FROM_MAVEN=0 | ||
| ;; | ||
| 0.5.* | 0.6.* | 0.7.* | 0.8.* | 0.9.* | 0.10.* | 0.11.0-M* ) | ||
| DOWNLOAD_SUFFIX="-assembly" | ||
| DOWNLOAD_FROM_MAVEN=0 | ||
| ;; | ||
| *) | ||
| DOWNLOAD_SUFFIX="-assembly" | ||
| DOWNLOAD_FROM_MAVEN=1 | ||
| ;; | ||
| esac | ||
|
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| DOWNLOAD_FILE=$(mktemp mill.XXXXXX) | ||
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| if [ "$DOWNLOAD_FROM_MAVEN" = "1" ] ; then | ||
| DOWNLOAD_URL="https://repo1.maven.org/maven2/com/lihaoyi/mill-dist/${MILL_VERSION}/mill-dist-${MILL_VERSION}.jar" | ||
| else | ||
| MILL_VERSION_TAG=$(echo "$MILL_VERSION" | sed -E 's/([^-]+)(-M[0-9]+)?(-.*)?/\1\2/') | ||
| DOWNLOAD_URL="${GITHUB_RELEASE_CDN}${MILL_REPO_URL}/releases/download/${MILL_VERSION_TAG}/${MILL_VERSION}${DOWNLOAD_SUFFIX}" | ||
| unset MILL_VERSION_TAG | ||
| fi | ||
|
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| # TODO: handle command not found | ||
| echo "Downloading mill ${MILL_VERSION} from ${DOWNLOAD_URL} ..." 1>&2 | ||
| ${CURL_CMD} -f -L -o "${DOWNLOAD_FILE}" "${DOWNLOAD_URL}" | ||
| chmod +x "${DOWNLOAD_FILE}" | ||
| mkdir -p "${MILL_DOWNLOAD_PATH}" | ||
| mv "${DOWNLOAD_FILE}" "${MILL}" | ||
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| unset DOWNLOAD_FILE | ||
| unset DOWNLOAD_SUFFIX | ||
| fi | ||
| fi | ||
|
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| if [ -z "$MILL_MAIN_CLI" ] ; then | ||
| MILL_MAIN_CLI="${0}" | ||
| fi | ||
|
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| MILL_FIRST_ARG="" | ||
| if [ "$1" = "--bsp" ] || [ "$1" = "-i" ] || [ "$1" = "--interactive" ] || [ "$1" = "--no-server" ] || [ "$1" = "--repl" ] || [ "$1" = "--help" ] ; then | ||
| # Need to preserve the first position of those listed options | ||
| MILL_FIRST_ARG=$1 | ||
| shift | ||
| fi | ||
|
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| unset MILL_DOWNLOAD_PATH | ||
| unset MILL_OLD_DOWNLOAD_PATH | ||
| unset OLD_MILL | ||
| unset MILL_VERSION | ||
| unset MILL_REPO_URL | ||
|
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| # We don't quote MILL_FIRST_ARG on purpose, so we can expand the empty value without quotes | ||
| # shellcheck disable=SC2086 | ||
| exec "${MILL}" $MILL_FIRST_ARG -D "mill.main.cli=${MILL_MAIN_CLI}" "$@" |