forked from lix-project/lix-installer
710 lines
22 KiB
Bash
Executable file
710 lines
22 KiB
Bash
Executable file
#!/bin/sh
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# shellcheck shell=dash
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# This script is based off https://github.com/rust-lang/rustup/blob/8f6b53628ad996ad86f9c6225fa500cddf860905/rustup-init.sh
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# This is just a little script that can be downloaded from the internet to
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# install `nix-install`. It just does platform detection, downloads the installer
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# and runs it.
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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 [ "$KSH_VERSION" = 'Version JM 93t+ 2010-03-05' ]; then
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# The version of ksh93 that ships with many illumos systems does not
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# support the "local" extension. Print a message rather than fail in
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# subtle ways later on:
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echo 'rustup does not work with this ksh93 version; please try bash!' >&2
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exit 1
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fi
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set -u
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# If NIX_INSTALL_UPDATE_ROOT is unset or empty, default it.
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NIX_INSTALL_UPDATE_ROOT="${NIX_INSTALL_UPDATE_ROOT:-https://nix-install.determinate.systems/nix-install}"
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#XXX: If you change anything here, please make the same changes in setup_mode.rs
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usage() {
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cat 1>&2 <<EOF
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rustup-init 1.25.1 (48d233f65 2022-07-12)
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The installer for rustup
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USAGE:
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rustup-init [FLAGS] [OPTIONS]
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FLAGS:
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-v, --verbose Enable verbose output
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-q, --quiet Disable progress output
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-y Disable confirmation prompt.
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--no-modify-path Don't configure the PATH environment variable
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-h, --help Prints help information
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-V, --version Prints version information
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OPTIONS:
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--default-host <default-host> Choose a default host triple
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--default-toolchain <default-toolchain> Choose a default toolchain to install
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--default-toolchain none Do not install any toolchains
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--profile [minimal|default|complete] Choose a profile
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-c, --component <components>... Component name to also install
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-t, --target <targets>... Target name to also install
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EOF
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}
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main() {
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downloader --check
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need_cmd uname
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need_cmd mktemp
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need_cmd chmod
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need_cmd mkdir
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need_cmd rm
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need_cmd rmdir
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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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local _ext=""
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case "$_arch" in
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*windows*)
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_ext=".exe"
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;;
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esac
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local _url="${NIX_INSTALL_UPDATE_ROOT}/dist/${_arch}/nix-install${_ext}"
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local _dir
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if ! _dir="$(ensure mktemp -d)"; then
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# Because the previous command ran in a subshell, we must manually
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# propagate exit status.
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exit 1
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fi
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local _file="${_dir}/nix-install${_ext}"
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local _ansi_escapes_are_valid=false
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if [ -t 2 ]; then
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if [ "${TERM+set}" = 'set' ]; then
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case "$TERM" in
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xterm*|rxvt*|urxvt*|linux*|vt*)
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_ansi_escapes_are_valid=true
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;;
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esac
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fi
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fi
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# check if we have to use /dev/tty to prompt the user
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local need_tty=yes
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for arg in "$@"; do
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case "$arg" in
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--help)
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usage
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exit 0
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;;
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*)
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OPTIND=1
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if [ "${arg%%--*}" = "" ]; then
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# Long option (other than --help);
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# don't attempt to interpret it.
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continue
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fi
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while getopts :hy sub_arg "$arg"; do
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case "$sub_arg" in
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h)
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usage
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exit 0
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;;
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y)
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# user wants to skip the prompt --
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# we don't need /dev/tty
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need_tty=no
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;;
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*)
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;;
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esac
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done
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;;
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esac
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done
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if $_ansi_escapes_are_valid; then
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printf "\33[1minfo:\33[0m downloading installer\n" 1>&2
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else
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printf '%s\n' 'info: downloading installer' 1>&2
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fi
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ensure mkdir -p "$_dir"
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ensure downloader "$_url" "$_file" "$_arch"
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ensure chmod u+x "$_file"
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if [ ! -x "$_file" ]; then
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printf '%s\n' "Cannot execute $_file (likely because of mounting /tmp as noexec)." 1>&2
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printf '%s\n' "Please copy the file to a location where you can execute binaries and run ./nix-install${_ext}." 1>&2
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exit 1
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fi
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if [ "$need_tty" = "yes" ] && [ ! -t 0 ]; then
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# The installer is going to want to ask for confirmation by
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# reading stdin. This script was piped into `sh` though and
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# doesn't have stdin to pass to its children. Instead we're going
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# to explicitly connect /dev/tty to the installer's stdin.
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if [ ! -t 1 ]; then
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err "Unable to run interactively. Run with -y to accept defaults, --help for additional options"
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fi
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ignore "$_file" "$@" < /dev/tty
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else
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ignore "$_file" "$@"
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fi
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local _retval=$?
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ignore rm "$_file"
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ignore rmdir "$_dir"
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return "$_retval"
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}
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check_proc() {
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# Check for /proc by looking for the /proc/self/exe link
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# This is only run on Linux
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if ! test -L /proc/self/exe ; then
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err "fatal: Unable to find /proc/self/exe. Is /proc mounted? Installation cannot proceed without /proc."
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fi
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}
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get_bitness() {
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need_cmd head
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# Architecture detection without dependencies beyond coreutils.
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# ELF files start out "\x7fELF", and the following byte is
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# 0x01 for 32-bit and
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# 0x02 for 64-bit.
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# The printf builtin on some shells like dash only supports octal
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# escape sequences, so we use those.
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local _current_exe_head
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_current_exe_head=$(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 "unrecognized 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="${_ostype}eabihf"
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fi
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;;
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aarch64 | arm64)
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_cputype=aarch64
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;;
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x86_64 | x86-64 | x64 | amd64)
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_cputype=x86_64
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;;
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mips)
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_cputype=$(get_endianness mips '' el)
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;;
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mips64)
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if [ "$_bitness" -eq 64 ]; then
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# only n64 ABI is supported for now
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_ostype="${_ostype}abi64"
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_cputype=$(get_endianness mips64 '' el)
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fi
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;;
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ppc)
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_cputype=powerpc
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;;
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ppc64)
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_cputype=powerpc64
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;;
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ppc64le)
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_cputype=powerpc64le
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;;
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s390x)
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_cputype=s390x
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;;
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riscv64)
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_cputype=riscv64gc
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;;
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loongarch64)
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_cputype=loongarch64
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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="$RUSTUP_CPUTYPE"
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else {
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# 32-bit executable for amd64 = x32
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if is_host_amd64_elf; then {
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echo "This host is running an x32 userland; as it stands, x32 support is poor," 1>&2
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echo "and there isn't a native toolchain -- you will have to install" 1>&2
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echo "multiarch compatibility with i686 and/or amd64, then select one" 1>&2
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echo "by re-running this script with the RUSTUP_CPUTYPE environment variable" 1>&2
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echo "set to i686 or x86_64, respectively." 1>&2
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echo 1>&2
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echo "You will be able to add an x32 target after installation by running" 1>&2
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echo " rustup target add x86_64-unknown-linux-gnux32" 1>&2
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exit 1
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}; else
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_cputype=i686
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fi
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}; fi
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;;
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mips64)
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_cputype=$(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 [ "$_ostype" = "linux-android" ]; then
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_ostype=linux-androideabi
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else
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_ostype="${_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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say() {
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printf 'rustup: %s\n' "$1"
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}
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err() {
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say "$1" >&2
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exit 1
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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: $*"; fi
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}
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# This is just for indicating that commands' results are being
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# intentionally ignored. Usually, because it's being executed
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# as part of error handling.
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ignore() {
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"$@"
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}
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# This wraps curl or wget. Try curl first, if not installed,
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# use wget instead.
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downloader() {
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local _dld
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local _ciphersuites
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local _err
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local _status
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local _retry
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if check_cmd curl; then
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_dld=curl
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elif check_cmd wget; then
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_dld=wget
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else
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_dld='curl or wget' # to be used in error message of need_cmd
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fi
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if [ "$1" = --check ]; then
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need_cmd "$_dld"
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elif [ "$_dld" = curl ]; then
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check_curl_for_retry_support
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_retry="$RETVAL"
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get_ciphersuites_for_curl
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_ciphersuites="$RETVAL"
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if [ -n "$_ciphersuites" ]; then
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_err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1)
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_status=$?
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else
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echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
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if ! check_help_for "$3" curl --proto --tlsv1.2; then
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echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
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_err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1)
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_status=$?
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else
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_err=$(curl $_retry --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2" 2>&1)
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_status=$?
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fi
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fi
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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 "installer for platform '$3' not found, this may be unsupported"
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fi
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fi
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return $_status
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elif [ "$_dld" = wget ]; then
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if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then
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echo "Warning: using the BusyBox version of wget. Not enforcing strong cipher suites for TLS or TLS v1.2, this is potentially less secure"
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_err=$(wget "$1" -O "$2" 2>&1)
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_status=$?
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else
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get_ciphersuites_for_wget
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_ciphersuites="$RETVAL"
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if [ -n "$_ciphersuites" ]; then
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_err=$(wget --https-only --secure-protocol=TLSv1_2 --ciphers "$_ciphersuites" "$1" -O "$2" 2>&1)
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_status=$?
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else
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echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
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if ! check_help_for "$3" wget --https-only --secure-protocol; then
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echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
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_err=$(wget "$1" -O "$2" 2>&1)
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_status=$?
|
|
else
|
|
_err=$(wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2" 2>&1)
|
|
_status=$?
|
|
fi
|
|
fi
|
|
fi
|
|
if [ -n "$_err" ]; then
|
|
echo "$_err" >&2
|
|
if echo "$_err" | grep -q ' 404 Not Found$'; then
|
|
err "installer for platform '$3' not found, this may be unsupported"
|
|
fi
|
|
fi
|
|
return $_status
|
|
else
|
|
err "Unknown downloader" # should not reach here
|
|
fi
|
|
}
|
|
|
|
check_help_for() {
|
|
local _arch
|
|
local _cmd
|
|
local _arg
|
|
_arch="$1"
|
|
shift
|
|
_cmd="$1"
|
|
shift
|
|
|
|
local _category
|
|
if "$_cmd" --help | grep -q 'For all options use the manual or "--help all".'; then
|
|
_category="all"
|
|
else
|
|
_category=""
|
|
fi
|
|
|
|
case "$_arch" in
|
|
|
|
*darwin*)
|
|
if check_cmd sw_vers; then
|
|
case $(sw_vers -productVersion) in
|
|
10.*)
|
|
# If we're running on macOS, older than 10.13, then we always
|
|
# fail to find these options to force fallback
|
|
if [ "$(sw_vers -productVersion | cut -d. -f2)" -lt 13 ]; then
|
|
# Older than 10.13
|
|
echo "Warning: Detected macOS platform older than 10.13"
|
|
return 1
|
|
fi
|
|
;;
|
|
11.*)
|
|
# We assume Big Sur will be OK for now
|
|
;;
|
|
*)
|
|
# Unknown product version, warn and continue
|
|
echo "Warning: Detected unknown macOS major version: $(sw_vers -productVersion)"
|
|
echo "Warning TLS capabilities detection may fail"
|
|
;;
|
|
esac
|
|
fi
|
|
;;
|
|
|
|
esac
|
|
|
|
for _arg in "$@"; do
|
|
if ! "$_cmd" --help $_category | grep -q -- "$_arg"; then
|
|
return 1
|
|
fi
|
|
done
|
|
|
|
true # not strictly needed
|
|
}
|
|
|
|
# Check if curl supports the --retry flag, then pass it to the curl invocation.
|
|
check_curl_for_retry_support() {
|
|
local _retry_supported=""
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "curl" "--retry"; then
|
|
_retry_supported="--retry 3"
|
|
fi
|
|
|
|
RETVAL="$_retry_supported"
|
|
|
|
}
|
|
|
|
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
|
# if support by local tools is detected. Detection currently supports these curl backends:
|
|
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
|
get_ciphersuites_for_curl() {
|
|
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
|
# user specified custom cipher suites, assume they know what they're doing
|
|
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
|
return
|
|
fi
|
|
|
|
local _openssl_syntax="no"
|
|
local _gnutls_syntax="no"
|
|
local _backend_supported="yes"
|
|
if curl -V | grep -q ' OpenSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' LibreSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' BoringSSL/'; then
|
|
_openssl_syntax="yes"
|
|
elif curl -V | grep -iq ' GnuTLS/'; then
|
|
_gnutls_syntax="yes"
|
|
else
|
|
_backend_supported="no"
|
|
fi
|
|
|
|
local _args_supported="no"
|
|
if [ "$_backend_supported" = "yes" ]; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "curl" "--tlsv1.2" "--ciphers" "--proto"; then
|
|
_args_supported="yes"
|
|
fi
|
|
fi
|
|
|
|
local _cs=""
|
|
if [ "$_args_supported" = "yes" ]; then
|
|
if [ "$_openssl_syntax" = "yes" ]; then
|
|
_cs=$(get_strong_ciphersuites_for "openssl")
|
|
elif [ "$_gnutls_syntax" = "yes" ]; then
|
|
_cs=$(get_strong_ciphersuites_for "gnutls")
|
|
fi
|
|
fi
|
|
|
|
RETVAL="$_cs"
|
|
}
|
|
|
|
# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
|
|
# if support by local tools is detected. Detection currently supports these wget backends:
|
|
# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
|
|
get_ciphersuites_for_wget() {
|
|
if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then
|
|
# user specified custom cipher suites, assume they know what they're doing
|
|
RETVAL="$RUSTUP_TLS_CIPHERSUITES"
|
|
return
|
|
fi
|
|
|
|
local _cs=""
|
|
if wget -V | grep -q '\-DHAVE_LIBSSL'; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
|
_cs=$(get_strong_ciphersuites_for "openssl")
|
|
fi
|
|
elif wget -V | grep -q '\-DHAVE_LIBGNUTLS'; then
|
|
# "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
|
|
if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
|
|
_cs=$(get_strong_ciphersuites_for "gnutls")
|
|
fi
|
|
fi
|
|
|
|
RETVAL="$_cs"
|
|
}
|
|
|
|
# Return strong TLS 1.2-1.3 cipher suites in OpenSSL or GnuTLS syntax. TLS 1.2
|
|
# excludes non-ECDHE and non-AEAD cipher suites. DHE is excluded due to bad
|
|
# DH params often found on servers (see RFC 7919). Sequence matches or is
|
|
# similar to Firefox 68 ESR with weak cipher suites disabled via about:config.
|
|
# $1 must be openssl or gnutls.
|
|
get_strong_ciphersuites_for() {
|
|
if [ "$1" = "openssl" ]; then
|
|
# OpenSSL is forgiving of unknown values, no problems with TLS 1.3 values on versions that don't support it yet.
|
|
echo "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384"
|
|
elif [ "$1" = "gnutls" ]; then
|
|
# GnuTLS isn't forgiving of unknown values, so this may require a GnuTLS version that supports TLS 1.3 even if wget doesn't.
|
|
# Begin with SECURE128 (and higher) then remove/add to build cipher suites. Produces same 9 cipher suites as OpenSSL but in slightly different order.
|
|
echo "SECURE128:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS-ALL:-CIPHER-ALL:-MAC-ALL:-KX-ALL:+AEAD:+ECDHE-ECDSA:+ECDHE-RSA:+AES-128-GCM:+CHACHA20-POLY1305:+AES-256-GCM"
|
|
fi
|
|
}
|
|
|
|
main "$@" || exit 1
|