mirror of
https://github.com/static-web-server/static-web-server.git
synced 2026-01-24 20:56:50 +00:00
865e8e4e89
* refactor: improve installer script functionality * refactor: simplify installer script and installation docs * fix: typos
424 lines
12 KiB
Bash
Executable File
424 lines
12 KiB
Bash
Executable File
#!/bin/sh
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# SWS installer script which does platform detection,
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# downloads the corresponding pre-compiled binary and runs it.
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#
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# Usage:
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# curl --proto '=https' --tlsv1.2 -sSfL https://get.static-web-server.net | sh
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#
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# Script adapted from https://github.com/rust-lang/rustup/blob/master/rustup-init.sh
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#
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# It runs on Unix shells like {a,ba,da,k,z}sh. It uses the common `local`
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# extension. Note: Most shells limit `local` to 1 var per line, contra bash.
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if [ "$KSH_VERSION" = 'Version JM 93t+ 2010-03-05' ]; then
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# The version of ksh93 that ships with many illumos systems does not
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# support the "local" extension. Print a message rather than fail in
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# subtle ways later on:
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echo 'SWS installer does not work with this ksh93 version; please try bash!' >&2
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exit 1
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fi
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set -ue
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# SWS latest version
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version=${SWS_INSTALL_VERSION:-"2.40.1"}
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# Default directory where SWS will be installed
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install_dir=${SWS_INSTALL_DIR:-"/usr/local/bin"}
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main() {
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need_cmd uname
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need_cmd chmod
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need_cmd rm
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get_architecture || return 1
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local _arch="$RETVAL"
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assert_nz "$_arch" "arch"
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case "$_arch" in
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*windows*)
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echo "For install SWS on Windows, please follow https://static-web-server.net/download-and-install/#windows" 1>&2
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exit 1
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esac
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local _ansi_escapes_are_valid=false
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if [ -t 2 ]; then
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if [ "${TERM+set}" = 'set' ]; then
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case "$TERM" in
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xterm*|rxvt*|urxvt*|linux*|vt*)
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_ansi_escapes_are_valid=true
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;;
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esac
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fi
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fi
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if $_ansi_escapes_are_valid; then
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printf "\33[1mStatic Web Server Installer\33[0m\n" 1>&2
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else
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printf "Static Web Server Installer\n" 1>&2
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fi
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info "platform '$_arch' supported"
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if [ ! -d "$install_dir" ]; then
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err "install directory '$install_dir' does not exist, is inaccessible or is not a directory"
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fi
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info "downloading 'static-web-server' (v$version) pre-compiled binary..."
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local _filename="static-web-server-v$version-$_arch"
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local _tarball="$_filename.tar.gz"
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local _url="https://github.com/static-web-server/static-web-server/releases/download/v$version/$_tarball"
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download_file=$(mktemp -d -t sws.XXXXXXX) || err "unable to create sws temporary directory"
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trap 'rm -rf -- "$download_file"' EXIT
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ensure download $_url $download_file/$_tarball
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err=$(tar zxf $download_file/$_tarball -C "$download_file/" --strip-components 1 "$_filename/static-web-server" 2>&1)
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if [ -n "$err" ]; then
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echo "$err" >&2
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if echo "$err" | grep -q 404$; then
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err "pre-compile binary for platform '$_arch' not found, this may be unsupported"
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fi
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fi
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info "installing SWS pre-compiled binary to '$install_dir'..."
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local _sudo=""
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if [ ! -w "$install_dir" ]; then
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_sudo=sudo
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warn "Can not install to '$install_dir' due to insufficient permissions, trying with sudo..."
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fi
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local _sws_bin_path="$install_dir/static-web-server"
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ensure $_sudo install -D -m755 "$download_file/static-web-server" $install_dir
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info "pre-compiled binary installed on '$_sws_bin_path'"
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local _sws_bin_symlink_path="$install_dir/sws"
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if [ -L "$_sws_bin_symlink_path" ]; then
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if [ "$(readlink -- "$_sws_bin_symlink_path")" = "$_sws_bin_path" ]; then
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ensure $_sudo unlink "$_sws_bin_symlink_path"
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ensure $_sudo ln -s $_sws_bin_path "$_sws_bin_symlink_path"
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info "symlink binary created on '$_sws_bin_symlink_path'"
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fi
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else
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ensure $_sudo ln -s $_sws_bin_path "$_sws_bin_symlink_path"
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info "symlink binary created on '$_sws_bin_symlink_path'"
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fi
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local _status=$?
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printf "\n" 1>&2
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printf '%s\n' "$_sws_bin_path --version" 1>&2
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ensure $_sws_bin_path --version
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printf "\n" 1>&2
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info "SWS was installed successfully!"
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info "To uninstall SWS, just remove it from its location."
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info "Visit https://static-web-server.net/getting-started for more details."
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return "$_status"
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}
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download() {
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if [ -x "$(command -v curl)" ]; then
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curl --proto '=https' --tlsv1.2 -sSf --location $1 --output $2
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else
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if [ ! -x "$(command -v wget)" ]; then
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err "SWS installer requires either 'curl' or 'wget' to be installed but neither was found. Please install one and try again."
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fi
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if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then
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err "can not use BusyBox 'wget' to download as it can be potentially less secure, please install GNU 'wget' or 'curl' and try again."
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else
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wget --https-only --secure-protocol=TLSv1_2 -qO- $1 > $2
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fi
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fi
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}
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check_proc() {
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# Check for /proc by looking for the /proc/self/exe link
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# This is only run on Linux
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if ! test -L /proc/self/exe ; then
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err "fatal: Unable to find /proc/self/exe. Is /proc mounted? Installation cannot proceed without /proc."
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fi
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}
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get_bitness() {
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need_cmd head
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# Architecture detection without dependencies beyond coreutils.
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# ELF files start out "\x7fELF", and the following byte is
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# 0x01 for 32-bit and
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# 0x02 for 64-bit.
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# The printf builtin on some shells like dash only supports octal
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# escape sequences, so we use those.
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local _current_exe_head
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_current_exe_head=$(head -c 5 /proc/self/exe )
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if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then
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echo 32
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elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then
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echo 64
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else
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err "unknown platform bitness"
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fi
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}
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is_host_amd64_elf() {
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need_cmd head
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need_cmd tail
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# ELF e_machine detection without dependencies beyond coreutils.
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# Two-byte field at offset 0x12 indicates the CPU,
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# but we're interested in it being 0x3E to indicate amd64, or not that.
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local _current_exe_machine
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_current_exe_machine=$(head -c 19 /proc/self/exe | tail -c 1)
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[ "$_current_exe_machine" = "$(printf '\076')" ]
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}
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get_endianness() {
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local cputype=$1
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local suffix_eb=$2
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local suffix_el=$3
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# detect endianness without od/hexdump, like get_bitness() does.
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need_cmd head
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need_cmd tail
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local _current_exe_endianness
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_current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)"
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if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then
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echo "${cputype}${suffix_el}"
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elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then
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echo "${cputype}${suffix_eb}"
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else
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err "unknown platform endianness"
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fi
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}
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get_architecture() {
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local _ostype _cputype _bitness _arch _clibtype
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_ostype="$(uname -s)"
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_cputype="$(uname -m)"
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_clibtype="gnu"
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if [ "$_ostype" = Linux ]; then
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if [ "$(uname -o)" = Android ]; then
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_ostype=Android
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fi
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if ldd --version 2>&1 | grep -q 'musl'; then
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_clibtype="musl"
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fi
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fi
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if [ "$_ostype" = Darwin ] && [ "$_cputype" = i386 ]; then
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# Darwin `uname -m` lies
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if sysctl hw.optional.x86_64 | grep -q ': 1'; then
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_cputype=x86_64
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fi
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fi
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if [ "$_ostype" = SunOS ]; then
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# Both Solaris and illumos presently announce as "SunOS" in "uname -s"
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# so use "uname -o" to disambiguate. We use the full path to the
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# system uname in case the user has coreutils uname first in PATH,
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# which has historically sometimes printed the wrong value here.
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if [ "$(/usr/bin/uname -o)" = illumos ]; then
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_ostype=illumos
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fi
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# illumos systems have multi-arch userlands, and "uname -m" reports the
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# machine hardware name; e.g., "i86pc" on both 32- and 64-bit x86
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# systems. Check for the native (widest) instruction set on the
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# running kernel:
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if [ "$_cputype" = i86pc ]; then
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_cputype="$(isainfo -n)"
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fi
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fi
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case "$_ostype" in
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Android)
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_ostype=linux-android
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;;
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Linux)
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check_proc
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_ostype=unknown-linux-$_clibtype
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_bitness=$(get_bitness)
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;;
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FreeBSD)
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_ostype=unknown-freebsd
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;;
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NetBSD)
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_ostype=unknown-netbsd
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;;
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# DragonFly)
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# _ostype=unknown-dragonfly
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# ;;
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Darwin)
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_ostype=apple-darwin
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;;
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illumos)
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_ostype=unknown-illumos
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;;
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MINGW* | MSYS* | CYGWIN* | Windows_NT)
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_ostype=pc-windows-gnu
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;;
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*)
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err "unsupported OS type: $_ostype"
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;;
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esac
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case "$_cputype" in
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i386 | i486 | i686 | i786 | x86)
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_cputype=i686
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;;
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xscale | arm)
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_cputype=arm
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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fi
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;;
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armv6l)
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_cputype=arm
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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armv7l | armv8l)
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_cputype=armv7
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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aarch64 | arm64)
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_cputype=aarch64
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;;
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x86_64 | x86-64 | x64 | amd64)
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_cputype=x86_64
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;;
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*)
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err "unknown CPU type: $_cputype"
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esac
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# Detect 64-bit linux with 32-bit userland
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if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then
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case $_cputype in
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x86_64)
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if [ -n "${RUSTUP_CPUTYPE:-}" ]; then
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_cputype="$RUSTUP_CPUTYPE"
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else {
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# 32-bit executable for amd64 = x32
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if is_host_amd64_elf; then {
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echo "This host is running an x32 userland; x32 is not supported" 1>&2
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exit 1
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}; else
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_cputype=i686
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fi
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}; fi
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;;
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# mips64)
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# _cputype=$(get_endianness mips '' el)
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# ;;
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# powerpc64)
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# _cputype=powerpc
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# ;;
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aarch64)
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_cputype=armv7
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if [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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err "unsupported OS type: $_ostype"
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else
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_ostype="${_ostype}eabihf"
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fi
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;;
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# riscv64gc)
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# err "riscv64 with 32-bit userland unsupported"
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# ;;
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esac
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fi
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# Detect armv7 but without the CPU features Rust needs in that build,
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# and fall back to arm.
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# See https://github.com/rust-lang/rustup.rs/issues/587.
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if [ "$_ostype" = "unknown-linux-gnueabihf" ] && [ "$_cputype" = armv7 ]; then
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if ensure grep '^Features' /proc/cpuinfo | grep -q -v neon; then
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# At least one processor does not have NEON.
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_cputype=arm
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fi
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fi
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_arch="${_cputype}-${_ostype}"
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RETVAL="$_arch"
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}
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info() {
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__print 'info' "$1" >&2
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}
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warn() {
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__print 'warn' "$1" >&2
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}
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err() {
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__print 'error' "$1" >&2
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exit 1
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}
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__print() {
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if $_ansi_escapes_are_valid; then
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printf '\33[1m%s:\33[0m %s\n' "$1" "$2" >&2
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else
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printf '%s: %s\n' "$1" "$2" >&2
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fi
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}
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need_cmd() {
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if ! check_cmd "$1"; then
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err "need '$1' (command not found)"
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fi
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}
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check_cmd() {
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command -v "$1" > /dev/null 2>&1
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}
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assert_nz() {
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if [ -z "$1" ]; then err "assert_nz $2"; fi
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}
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# Run a command that should never fail. If the command fails execution
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# will immediately terminate with an error showing the failing
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# command.
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ensure() {
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if ! "$@"; then err "command failed: $*"; fi
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}
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main "$@" || exit 1
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