Merge pull request #2 from crazystylus/master

One liner zoxide install script

install.sh

@@ -0,0 +1,143 @@
+#!/bin/bash
+
+set -u
+
+usage() {
+	cat 1>&2 <<EOF
+The installer for zoxide
+
+USAGE
+	zoxide-install
+EOF
+}
+
+main() {
+	need_cmd uname
+	need_cmd curl
+	need_cmd grep
+	need_cmd cut
+	need_cmd xargs
+	need_cmd chmod
+	install
+}
+
+install() {
+	local _ostype _cputype _clibtype _target _cargobuild _install_path
+	_ostype="$(uname -s)"
+	_cputype="$(uname -m)"
+	_cargobuild="no"
+	_install_path="/usr/local/bin"
+
+	case $_cputype in
+	x86_64 | x86-64 | amd64)
+		_cputype="x86_64"
+		_clibtype="musl"
+		;;
+	*)
+		warning "No binaries are available for your CPU architecture ($_cputype)"
+		_clibtype="gnu"
+		_cargobuild="yes"
+		;;
+	esac
+
+	case $_ostype in
+	Linux)
+		_ostype=unknown-linux-$_clibtype
+		;;
+	Darwin)
+		_ostype=apple-darwin
+		;;
+	*)
+		warning "No binaries are available for your operating system ($_ostype)"
+		_cargobuild="yes"
+		;;
+	esac
+
+	if [ $_cargobuild = "yes" ]; then
+		cargo_build
+		exit 0
+	fi
+
+	_target="$_cputype-$_ostype"
+	warning "Detected target: $_target"
+
+	success "Downloading zoxide..."
+
+	## Downloading the binaries
+	ensure rm -rf "zoxide-$_target"
+	curl -s https://api.github.com/repos/ajeetdsouza/zoxide/releases/latest | grep "browser_download_url" | cut -d '"' -f 4 | grep "$_target" | xargs -n 1 curl -LJO
+
+	ensure mv "zoxide-$_target" "zoxide_bin"
+
+	ensure sudo mv zoxide_bin "$_install_path/zoxide"
+	ensure chmod +x "$_install_path/zoxide"
+
+	success "zoxide is installed!"
+	info "Please ensure that $_install_path is added to your \$PATH."
+}
+
+success() {
+	printf "\033[32m%s\033[0m\n" "$1" >&1
+}
+
+info() {
+	printf "%s\n" "$1" >&1
+}
+
+warning() {
+	printf "\033[33m%s\033[0m\n" "$1" >&2
+}
+
+error() {
+	printf "\033[31;1m%s\033[0m\n" "$1" >&2
+	exit 1
+}
+
+cmd_chk() {
+	command -v "$1" >/dev/null 2>&1
+}
+
+## Ensures that the command executes without error
+ensure() {
+	if ! "$@"; then error "command failed: $*"; fi
+}
+
+need_cmd() {
+	if ! cmd_chk "$1"; then
+		error "need $1 (command not found)"
+	fi
+}
+
+prompt_confirm() {
+	if [ ! -t 1 ]; then
+		error "Unable to run interactively. Please execute this script using interactive shell"
+	fi
+
+	while true; do
+		read -rp "Is this okay? (y/N): " _choice
+		_choice=$(echo "$_choice" | tr '[:upper:]' '[:lower:]')
+
+		case "$_choice" in
+		y | yes) break ;;
+		n | no) error "Operation aborted" ;;
+		esac
+	done
+}
+
+cargo_build() {
+	success "Compiling from source..."
+
+	if ! cmd_chk "cargo"; then
+		success "Cargo will be installed."
+		prompt_confirm
+
+		ensure curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+
+		# shellcheck source=/dev/null
+		source "$HOME/.cargo/env"
+	fi
+
+	RUSTFLAGS="-C target-cpu=native" ensure cargo install zoxide
+}
+
+main "$@" || exit 1