feat(install): make install script posix compliant (#2228)
- update shebang to support posix-compliant shells (like dash) - replace all usages of echo with printf (to normalise) - command variable to fetch_cmd as it overloads a posix - rename complete function to completed as it overloads the bash builtin for completion Co-authored-by: David Knaack <davidkna@users.noreply.github.com>
This commit is contained in:
Deavon M. McCaffery
GitHub
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commit
d1b2723033
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@ -1,4 +1,6 @@
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#!/bin/bash
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#!/usr/bin/env sh
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# shellcheck disable=SC2039
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# Options
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#
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@ -20,18 +22,18 @@
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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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set -eu
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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="$(tput sgr0 2>/dev/null || echo '')"
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BOLD="$(tput bold 2>/dev/null || printf '')"
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GREY="$(tput setaf 0 2>/dev/null || printf '')"
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UNDERLINE="$(tput smul 2>/dev/null || printf '')"
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RED="$(tput setaf 1 2>/dev/null || printf '')"
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GREEN="$(tput setaf 2 2>/dev/null || printf '')"
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YELLOW="$(tput setaf 3 2>/dev/null || printf '')"
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BLUE="$(tput setaf 4 2>/dev/null || printf '')"
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MAGENTA="$(tput setaf 5 2>/dev/null || printf '')"
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NO_COLOR="$(tput sgr0 2>/dev/null || printf '')"
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SUPPORTED_TARGETS="x86_64-unknown-linux-gnu x86_64-unknown-linux-musl \
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i686-unknown-linux-musl aarch64-unknown-linux-musl \
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@ -41,26 +43,30 @@ SUPPORTED_TARGETS="x86_64-unknown-linux-gnu x86_64-unknown-linux-musl \
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x86_64-unknown-freebsd"
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info() {
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printf "%s\n" "${BOLD}${GREY}>${NO_COLOR} $*"
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printf '%s\n' "${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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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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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} $*"
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completed() {
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printf '%s\n' "${GREEN}✓${NO_COLOR} $*"
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}
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has() {
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command -v "$1" 1>/dev/null 2>&1
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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="$1"
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if hash mktemp; then
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if has mktemp; then
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printf "%s.%s" "$(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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@ -81,64 +87,59 @@ test_writeable() {
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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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download() {
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file="$1"
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url="$2"
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if has curl; then
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cmd="curl --fail --silent --location --output $file $url"
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elif has wget; then
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cmd="wget --quiet --output-document=$file $url"
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elif has fetch; then
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cmd="fetch --quiet --output=$file $url"
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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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error "No HTTP download program (curl, wget, fetch) found, exiting…"
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return 1
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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 $rc
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fi
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$cmd && return 0 || rc=$?
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error "Command failed (exit code $rc): ${BLUE}${cmd}${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."
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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 ${MAGENTA}${TARGET}${NO_COLOR}:"
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info "${BOLD}${UNDERLINE}https://github.com/starship/starship/issues/new/${NO_COLOR}"
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return $rc
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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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unpack() {
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local archive=$1
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local bin_dir=$2
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local sudo=${3-}
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case "$archive" in
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*.tar.gz)
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flags=$(test -n "${VERBOSE-}" && echo "-v" || echo "")
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${sudo} tar "${flags}" -xzf "${archive}" -C "${bin_dir}"
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return 0
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;;
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*.zip)
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flags=$(test -z "${VERBOSE-}" && echo "-qq" || echo "")
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UNZIP="${flags}" ${sudo} unzip "${archive}" -d "${bin_dir}"
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return 0
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;;
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esac
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error "Unknown package extension."
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printf "\n"
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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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return 1
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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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if ! has sudo; 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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@ -154,6 +155,8 @@ elevate_priv() {
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install() {
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local msg
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local sudo
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local archive
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local ext="$1"
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if test_writeable "${BIN_DIR}"; then
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sudo=""
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@ -165,7 +168,14 @@ install() {
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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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archive=$(get_tmpfile "$ext")
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# download to the temp file
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download "${archive}" "${URL}"
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# unpack the temp file to the bin dir, using sudo if required
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unpack "${archive}" "${BIN_DIR}" "${sudo}"
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}
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# Currently supporting:
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@ -189,7 +199,7 @@ detect_platform() {
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freebsd) platform="unknown-freebsd" ;;
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esac
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echo "${platform}"
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printf '%s' "${platform}"
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}
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# Currently supporting:
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@ -212,7 +222,7 @@ detect_arch() {
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arch=arm
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fi
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echo "${arch}"
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printf '%s' "${arch}"
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}
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detect_target() {
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@ -224,7 +234,7 @@ detect_target() {
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target="${target}eabihf"
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fi
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echo "${target}"
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printf '%s' "${target}"
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}
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@ -261,7 +271,7 @@ check_bin_dir() {
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IFS=:
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for path in $PATH; do
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if [ "${path}" = "${bin_dir}" ]; then
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echo 1
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printf 1
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break
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fi
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done
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@ -282,8 +292,8 @@ is_build_available() {
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good=$(
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IFS=" "
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for t in $SUPPORTED_TARGETS; do
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if [ "${t}" == "${target}" ]; then
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echo 1
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if [ "${t}" = "${target}" ]; then
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printf 1
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break
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fi
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done
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@ -395,7 +405,7 @@ else
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VERBOSE=
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fi
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echo
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printf '\n'
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EXT=tar.gz
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if [ "${PLATFORM}" = "pc-windows-msvc" ]; then
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@ -407,10 +417,10 @@ 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 "${BIN_DIR}"
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install
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complete "Starship installed"
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install "${EXT}"
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completed "Starship installed"
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echo
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printf '\n'
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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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