mirror of
https://github.com/Llewellynvdm/starship.git
synced 2024-12-27 03:42:39 +00:00
382 lines
8.9 KiB
Bash
Executable File
382 lines
8.9 KiB
Bash
Executable File
#!/bin/bash
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# Options
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#
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# -V, --verbose
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# Enable verbose output for the installer
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#
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# -f, -y, --force, --yes
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# Skip the confirmation prompt during installation
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#
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# -p, --platform
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# Override the platform identified by the installer
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#
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# -b, --bin-dir
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# Override the bin installation directory
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#
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# -a, --arch
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# Override the architecture identified by the installer
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#
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# -B, --base-url
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# Override the base URL used for downloading releases
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set -euo pipefail
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printf "\n"
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BOLD="$(tput bold 2>/dev/null || echo '')"
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GREY="$(tput setaf 0 2>/dev/null || echo '')"
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UNDERLINE="$(tput smul 2>/dev/null || echo '')"
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RED="$(tput setaf 1 2>/dev/null || echo '')"
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GREEN="$(tput setaf 2 2>/dev/null || echo '')"
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YELLOW="$(tput setaf 3 2>/dev/null || echo '')"
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BLUE="$(tput setaf 4 2>/dev/null || echo '')"
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MAGENTA="$(tput setaf 5 2>/dev/null || echo '')"
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NO_COLOR="$(tput sgr0 2>/dev/null || echo '')"
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info() {
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printf "%s\n" "${BOLD}${GREY}>${NO_COLOR} $*"
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}
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warn() {
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printf "%s\n" "${YELLOW}! $*${NO_COLOR}"
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}
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error() {
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printf "%s\n" "${RED}x $*${NO_COLOR}" >&2
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}
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complete() {
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printf "%s\n" "${GREEN}✓${NO_COLOR} $*"
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}
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# Gets path to a temporary file, even if
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get_tmpfile() {
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local suffix
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suffix="$1"
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if hash mktemp; then
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printf "%s.%s" "$(mktemp)" "${suffix}"
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else
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# No really good options here--let's pick a default + hope
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printf "/tmp/starship.%s" "${suffix}"
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fi
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}
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# Test if a location is writeable by trying to write to it. Windows does not let
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# you test writeability other than by writing: https://stackoverflow.com/q/1999988
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test_writeable() {
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local path
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path="${1:-}/test.txt"
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if touch "${path}" 2>/dev/null; then
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rm "${path}"
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return 0
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else
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return 1
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fi
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}
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fetch() {
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local command
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if hash curl 2>/dev/null; then
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set +e
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command="curl --silent --fail --location $1"
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curl --silent --fail --location "$1"
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rc=$?
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set -e
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else
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if hash wget 2>/dev/null; then
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set +e
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command="wget -O- -q $1"
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wget -O- -q "$1"
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rc=$?
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set -e
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else
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error "No HTTP download program (curl, wget) found…"
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exit 1
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fi
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fi
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if [ $rc -ne 0 ]; then
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printf "\n" >&2
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error "Command failed (exit code $rc): ${BLUE}${command}${NO_COLOR}"
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printf "\n" >&2
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info "This is likely due to Starship not yet supporting your configuration." >&2
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info "If you would like to see a build for your configuration," >&2
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info "please create an issue requesting a build for ${MAGENTA}${ARCH}-${PLATFORM}${NO_COLOR}:" >&2
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info "${BOLD}${UNDERLINE}https://github.com/starship/starship/issues/new/${NO_COLOR}\n" >&2
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exit $rc
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fi
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}
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fetch_and_unpack() {
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local sudo
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local tmpfile
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sudo="$1"
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# I'd like to separate this into a fetch() and unpack() function, but I can't
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# figure out how to get bash functions to read STDIN/STDOUT from pipes
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if [ "${EXT}" = "tar.gz" ]; then
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fetch "${URL}" | ${sudo} tar xz"${VERBOSE}"f - -C "${BIN_DIR}"
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elif [ "${EXT}" = "zip" ]; then
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# According to https://unix.stackexchange.com/q/2690, zip files cannot be read
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# through a pipe. We'll have to do our own file-based setup.
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tmpfile="$(get_tmpfile "${EXT}")"
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fetch "${URL}" >"${tmpfile}"
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${sudo} unzip "${tmpfile}" -d "${BIN_DIR}"
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rm "${tmpfile}"
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else
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error "Unknown package extension."
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info "This almost certainly results from a bug in this script--please file a"
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info "bug report at https://github.com/starship/starship/issues"
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exit 1
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fi
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}
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elevate_priv() {
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if ! hash sudo 2>/dev/null; then
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error 'Could not find the command "sudo", needed to get permissions for install.'
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info "If you are on Windows, please run your shell as an administrator, then"
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info "rerun this script. Otherwise, please run this script as root, or install"
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info "sudo."
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exit 1
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fi
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if ! sudo -v; then
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error "Superuser not granted, aborting installation"
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exit 1
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fi
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}
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install() {
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local msg
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local sudo
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if test_writeable "${BIN_DIR}"; then
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sudo=""
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msg="Installing Starship, please wait…"
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else
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warn "Escalated permissions are required to install to ${BIN_DIR}"
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elevate_priv
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sudo="sudo"
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msg="Installing Starship as root, please wait…"
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fi
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info "$msg"
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fetch_and_unpack "${sudo}"
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}
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# Currently supporting:
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# - win (Git Bash)
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# - darwin
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# - linux
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# - linux_musl (Alpine)
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detect_platform() {
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local platform
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platform="$(uname -s | tr '[:upper:]' '[:lower:]')"
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case "${platform}" in
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msys_nt*) platform="pc-windows-msvc" ;;
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cygwin_nt*) platform="pc-windows-msvc";;
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# mingw is Git-Bash
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mingw*) platform="pc-windows-msvc" ;;
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# use the statically compiled musl bins on linux to avoid linking issues.
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linux) platform="unknown-linux-musl" ;;
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darwin) platform="apple-darwin" ;;
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esac
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echo "${platform}"
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}
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# Currently supporting:
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# - x86_64
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# - i386
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detect_arch() {
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local arch
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arch="$(uname -m | tr '[:upper:]' '[:lower:]')"
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# `uname -m` in some cases mis-reports 32-bit OS as 64-bit, so double check
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if [ "${arch}" = "x64" ] && [ "$(getconf LONG_BIT)" -eq 32 ]; then
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arch=i386
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fi
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echo "${arch}"
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}
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confirm() {
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if [ -z "${FORCE-}" ]; then
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printf "%s " "${MAGENTA}?${NO_COLOR} $* ${BOLD}[y/N]${NO_COLOR}"
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set +e
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read -r yn </dev/tty
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rc=$?
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set -e
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if [ $rc -ne 0 ]; then
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error "Error reading from prompt (please re-run with the '--yes' option)"
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exit 1
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fi
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if [ "$yn" != "y" ] && [ "$yn" != "yes" ]; then
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error 'Aborting (please answer "yes" to continue)'
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exit 1
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fi
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fi
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}
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check_bin_dir() {
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local bin_dir="$1"
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if [ ! -d "$BIN_DIR" ]; then
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error "Installation location $BIN_DIR does not appear to be a directory"
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info "Make sure the location exists and is a directory, then try again."
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exit 1
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fi
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# https://stackoverflow.com/a/11655875
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local good
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good=$(
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IFS=:
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for path in $PATH; do
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if [ "${path}" = "${bin_dir}" ]; then
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echo 1
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break
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fi
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done
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)
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if [ "${good}" != "1" ]; then
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warn "Bin directory ${bin_dir} is not in your \$PATH"
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fi
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}
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# defaults
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if [ -z "${PLATFORM-}" ]; then
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PLATFORM="$(detect_platform)"
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fi
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if [ -z "${BIN_DIR-}" ]; then
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BIN_DIR=/usr/local/bin
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fi
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if [ -z "${ARCH-}" ]; then
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ARCH="$(detect_arch)"
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fi
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if [ -z "${BASE_URL-}" ]; then
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BASE_URL="https://github.com/starship/starship/releases"
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fi
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# parse argv variables
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while [ "$#" -gt 0 ]; do
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case "$1" in
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-p | --platform)
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PLATFORM="$2"
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shift 2
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;;
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-b | --bin-dir)
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BIN_DIR="$2"
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shift 2
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;;
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-a | --arch)
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ARCH="$2"
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shift 2
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;;
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-B | --base-url)
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BASE_URL="$2"
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shift 2
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;;
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-V | --verbose)
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VERBOSE=1
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shift 1
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;;
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-f | -y | --force | --yes)
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FORCE=1
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shift 1
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;;
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-p=* | --platform=*)
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PLATFORM="${1#*=}"
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shift 1
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;;
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-b=* | --bin-dir=*)
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BIN_DIR="${1#*=}"
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shift 1
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;;
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-a=* | --arch=*)
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ARCH="${1#*=}"
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shift 1
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;;
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-B=* | --base-url=*)
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BASE_URL="${1#*=}"
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shift 1
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;;
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-V=* | --verbose=*)
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VERBOSE="${1#*=}"
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shift 1
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;;
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-f=* | -y=* | --force=* | --yes=*)
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FORCE="${1#*=}"
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shift 1
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;;
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*)
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error "Unknown option: $1"
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exit 1
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;;
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esac
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done
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if [ "${ARCH}" = "i386" ]; then
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error "i386 builds are not yet available for Starship\n"
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info "If you would like to see a build for your configuration,"
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info "please create an issue requesting a build for ${MAGENTA}${ARCH}-${PLATFORM}${NO_COLOR}:"
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info "${BOLD}${UNDERLINE}https://github.com/starship/starship/issues/new/${NO_COLOR}\n"
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exit 1
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fi
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printf " %s\n" "${UNDERLINE}Configuration${NO_COLOR}"
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info "${BOLD}Bin directory${NO_COLOR}: ${GREEN}${BIN_DIR}${NO_COLOR}"
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info "${BOLD}Platform${NO_COLOR}: ${GREEN}${PLATFORM}${NO_COLOR}"
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info "${BOLD}Arch${NO_COLOR}: ${GREEN}${ARCH}${NO_COLOR}"
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# non-empty VERBOSE enables verbose untarring
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if [ -n "${VERBOSE-}" ]; then
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VERBOSE=v
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info "${BOLD}Verbose${NO_COLOR}: yes"
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else
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VERBOSE=
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fi
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echo
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EXT=tar.gz
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if [ "${PLATFORM}" = "pc-windows-msvc" ]; then
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EXT=zip
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fi
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URL="${BASE_URL}/latest/download/starship-${ARCH}-${PLATFORM}.${EXT}"
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info "Tarball URL: ${UNDERLINE}${BLUE}${URL}${NO_COLOR}"
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confirm "Install Starship ${GREEN}latest${NO_COLOR} to ${BOLD}${GREEN}${BIN_DIR}${NO_COLOR}?"
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check_bin_dir "${BIN_DIR}"
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install
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complete "Starship installed"
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echo
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info "Please follow the steps for your shell to complete the installation:
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${BOLD}${UNDERLINE}Bash${NO_COLOR}
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Add the following to the end of ${BOLD}~/.bashrc${NO_COLOR}:
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eval \"\$(starship init bash)\"
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${BOLD}${UNDERLINE}Fish${NO_COLOR}
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Add the following to the end of ${BOLD}~/.config/fish/config.fish${NO_COLOR}:
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starship init fish | source
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${BOLD}${UNDERLINE}Zsh${NO_COLOR}
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Add the following to the end of ${BOLD}~/.zshrc${NO_COLOR}:
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eval \"\$(starship init zsh)\"
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${BOLD}${UNDERLINE}Ion${NO_COLOR}
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Add the following to the end of ${BOLD}~/.config/ion/initrc${NO_COLOR}:
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eval \$(starship init ion)
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"
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