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- #!/bin/bash
- # Copyright 2016 The Rust Project Developers. See the COPYRIGHT
- # file at the top-level directory of this distribution and at
- # http://rust-lang.org/COPYRIGHT.
- #
- # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
- # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
- # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
- # option. This file may not be copied, modified, or distributed
- # except according to those terms.
- # This is just a little script that can be downloaded from the internet to
- # install rustup. It just does platform detection, downloads the installer
- # and runs it.
- set -u
- RUSTUP_UPDATE_ROOT="https://static.rust-lang.org/rustup/dist"
- #XXX: If you change anything here, please make the same changes in setup_mode.rs
- usage() {
- cat 1>&2 <<EOF
- rustup-init 1.0.0 (408ed84 2017-02-11)
- The installer for rustup
- USAGE:
- rustup-init [FLAGS] [OPTIONS]
- FLAGS:
- -v, --verbose Enable verbose output
- -y Disable confirmation prompt.
- --no-modify-path Don't configure the PATH environment variable
- -h, --help Prints help information
- -V, --version Prints version information
- OPTIONS:
- --default-host <default-host> Choose a default host triple
- --default-toolchain <default-toolchain> Choose a default toolchain to install
- --default-toolchain none Do not install any toolchains
- EOF
- }
- main() {
- downloader --check
- need_cmd uname
- need_cmd mktemp
- need_cmd chmod
- need_cmd mkdir
- need_cmd rm
- need_cmd rmdir
- get_architecture || return 1
- local _arch="$RETVAL"
- assert_nz "$_arch" "arch"
- local _ext=""
- case "$_arch" in
- *windows*)
- _ext=".exe"
- ;;
- esac
- local _url="$RUSTUP_UPDATE_ROOT/$_arch/rustup-init$_ext"
- local _dir="$(mktemp -d 2>/dev/null || ensure mktemp -d -t rustup)"
- local _file="$_dir/rustup-init$_ext"
- local _ansi_escapes_are_valid=false
- if [ -t 2 ]; then
- if [ "${TERM+set}" = 'set' ]; then
- case "$TERM" in
- xterm*|rxvt*|urxvt*|linux*|vt*)
- _ansi_escapes_are_valid=true
- ;;
- esac
- fi
- fi
- # check if we have to use /dev/tty to prompt the user
- local need_tty=yes
- for arg in "$@"; do
- case "$arg" in
- -h|--help)
- usage
- exit 0
- ;;
- -y)
- # user wants to skip the prompt -- we don't need /dev/tty
- need_tty=no
- ;;
- *)
- ;;
- esac
- done
- if $_ansi_escapes_are_valid; then
- printf "\33[1minfo:\33[0m downloading installer\n" 1>&2
- else
- printf '%s\n' 'info: downloading installer' 1>&2
- fi
- ensure mkdir -p "$_dir"
- ensure downloader "$_url" "$_file"
- ensure chmod u+x "$_file"
- if [ ! -x "$_file" ]; then
- printf '%s\n' "Cannot execute $_file (likely because of mounting /tmp as noexec)." 1>&2
- printf '%s\n' "Please copy the file to a location where you can execute binaries and run ./rustup-init$_ext." 1>&2
- exit 1
- fi
- if [ "$need_tty" = "yes" ]; then
- # The installer is going to want to ask for confirmation by
- # reading stdin. This script was piped into `sh` though and
- # doesn't have stdin to pass to its children. Instead we're going
- # to explicitly connect /dev/tty to the installer's stdin.
- if [ ! -t 1 ]; then
- err "Unable to run interactively. Run with -y to accept defaults, --help for additional options"
- fi
- ignore "$_file" "$@" < /dev/tty
- else
- ignore "$_file" "$@"
- fi
- local _retval=$?
- ignore rm "$_file"
- ignore rmdir "$_dir"
- return "$_retval"
- }
- get_bitness() {
- need_cmd head
- # Architecture detection without dependencies beyond coreutils.
- # ELF files start out "\x7fELF", and the following byte is
- # 0x01 for 32-bit and
- # 0x02 for 64-bit.
- # The printf builtin on some shells like dash only supports octal
- # escape sequences, so we use those.
- local _current_exe_head=$(head -c 5 /proc/self/exe )
- if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then
- echo 32
- elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then
- echo 64
- else
- err "unknown platform bitness"
- fi
- }
- get_endianness() {
- local cputype=$1
- local suffix_eb=$2
- local suffix_el=$3
- # detect endianness without od/hexdump, like get_bitness() does.
- need_cmd head
- need_cmd tail
- local _current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)"
- if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then
- echo "${cputype}${suffix_el}"
- elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then
- echo "${cputype}${suffix_eb}"
- else
- err "unknown platform endianness"
- fi
- }
- get_architecture() {
- local _ostype="$(uname -s)"
- local _cputype="$(uname -m)"
- if [ "$_ostype" = Linux ]; then
- if [ "$(uname -o)" = Android ]; then
- local _ostype=Android
- fi
- fi
- if [ "$_ostype" = Darwin -a "$_cputype" = i386 ]; then
- # Darwin `uname -s` lies
- if sysctl hw.optional.x86_64 | grep -q ': 1'; then
- local _cputype=x86_64
- fi
- fi
- case "$_ostype" in
- Android)
- local _ostype=linux-android
- ;;
- Linux)
- local _ostype=unknown-linux-gnu
- ;;
- FreeBSD)
- local _ostype=unknown-freebsd
- ;;
- NetBSD)
- local _ostype=unknown-netbsd
- ;;
- DragonFly)
- local _ostype=unknown-dragonfly
- ;;
- Darwin)
- local _ostype=apple-darwin
- ;;
- MINGW* | MSYS* | CYGWIN*)
- local _ostype=pc-windows-gnu
- ;;
- *)
- err "unrecognized OS type: $_ostype"
- ;;
- esac
- case "$_cputype" in
- i386 | i486 | i686 | i786 | x86)
- local _cputype=i686
- ;;
- xscale | arm)
- local _cputype=arm
- if [ "$_ostype" = "linux-android" ]; then
- local _ostype=linux-androideabi
- fi
- ;;
- armv6l)
- local _cputype=arm
- if [ "$_ostype" = "linux-android" ]; then
- local _ostype=linux-androideabi
- else
- local _ostype="${_ostype}eabihf"
- fi
- ;;
- armv7l | armv8l)
- local _cputype=armv7
- if [ "$_ostype" = "linux-android" ]; then
- local _ostype=linux-androideabi
- else
- local _ostype="${_ostype}eabihf"
- fi
- ;;
- aarch64)
- local _cputype=aarch64
- ;;
- x86_64 | x86-64 | x64 | amd64)
- local _cputype=x86_64
- ;;
- mips)
- local _cputype="$(get_endianness $_cputype "" 'el')"
- ;;
- mips64)
- local _bitness="$(get_bitness)"
- if [ $_bitness = "32" ]; then
- if [ $_ostype = "unknown-linux-gnu" ]; then
- # 64-bit kernel with 32-bit userland
- # endianness suffix is appended later
- local _cputype=mips
- fi
- else
- # only n64 ABI is supported for now
- local _ostype="${_ostype}abi64"
- fi
- local _cputype="$(get_endianness $_cputype "" 'el')"
- ;;
- ppc)
- local _cputype=powerpc
- ;;
- ppc64)
- local _cputype=powerpc64
- ;;
- ppc64le)
- local _cputype=powerpc64le
- ;;
- *)
- err "unknown CPU type: $_cputype"
- esac
- # Detect 64-bit linux with 32-bit userland
- if [ $_ostype = unknown-linux-gnu -a $_cputype = x86_64 ]; then
- if [ "$(get_bitness)" = "32" ]; then
- local _cputype=i686
- fi
- fi
- # Detect armv7 but without the CPU features Rust needs in that build,
- # and fall back to arm.
- # See https://github.com/rust-lang-nursery/rustup.rs/issues/587.
- if [ $_ostype = "unknown-linux-gnueabihf" -a $_cputype = armv7 ]; then
- if ensure grep '^Features' /proc/cpuinfo | grep -q -v neon; then
- # At least one processor does not have NEON.
- local _cputype=arm
- fi
- fi
- local _arch="$_cputype-$_ostype"
- RETVAL="$_arch"
- }
- say() {
- echo "rustup: $1"
- }
- err() {
- say "$1" >&2
- exit 1
- }
- need_cmd() {
- if ! check_cmd "$1"
- then err "need '$1' (command not found)"
- fi
- }
- check_cmd() {
- command -v "$1" > /dev/null 2>&1
- return $?
- }
- need_ok() {
- if [ $? != 0 ]; then err "$1"; fi
- }
- assert_nz() {
- if [ -z "$1" ]; then err "assert_nz $2"; fi
- }
- # Run a command that should never fail. If the command fails execution
- # will immediately terminate with an error showing the failing
- # command.
- ensure() {
- "$@"
- need_ok "command failed: $*"
- }
- # This is just for indicating that commands' results are being
- # intentionally ignored. Usually, because it's being executed
- # as part of error handling.
- ignore() {
- "$@"
- }
- # This wraps curl or wget. Try curl first, if not installed,
- # use wget instead.
- downloader() {
- if check_cmd curl
- then _dld=curl
- elif check_cmd wget
- then _dld=wget
- else _dld='curl or wget' # to be used in error message of need_cmd
- fi
- if [ "$1" = --check ]
- then need_cmd "$_dld"
- elif [ "$_dld" = curl ]
- then curl -sSfL "$1" -o "$2"
- elif [ "$_dld" = wget ]
- then wget "$1" -O "$2"
- else err "Unknown downloader" # should not reach here
- fi
- }
- main "$@" || exit 1
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