mirror of https://github.com/telemt/telemt.git
116 lines
2.6 KiB
Bash
116 lines
2.6 KiB
Bash
#!/bin/sh
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set -eu
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REPO="${REPO:-telemt/telemt}"
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BIN_NAME="${BIN_NAME:-telemt}"
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VERSION="${1:-${VERSION:-latest}}"
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INSTALL_DIR="${INSTALL_DIR:-/usr/local/bin}"
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say() {
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printf '%s\n' "$*"
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}
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die() {
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printf 'Error: %s\n' "$*" >&2
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exit 1
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}
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need_cmd() {
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command -v "$1" >/dev/null 2>&1 || die "required command not found: $1"
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}
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detect_os() {
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os="$(uname -s)"
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case "$os" in
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Linux) printf 'linux\n' ;;
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OpenBSD) printf 'openbsd\n' ;;
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*) printf '%s\n' "$os" ;;
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esac
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}
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detect_arch() {
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arch="$(uname -m)"
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case "$arch" in
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x86_64|amd64) printf 'x86_64\n' ;;
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aarch64|arm64) printf 'aarch64\n' ;;
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*) die "unsupported architecture: $arch" ;;
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esac
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}
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detect_libc() {
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case "$(ldd --version 2>&1 || true)" in
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*musl*) printf 'musl\n' ;;
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*) printf 'gnu\n' ;;
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esac
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}
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fetch_to_stdout() {
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url="$1"
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if command -v curl >/dev/null 2>&1; then
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curl -fsSL "$url"
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elif command -v wget >/dev/null 2>&1; then
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wget -qO- "$url"
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else
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die "neither curl nor wget is installed"
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fi
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}
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install_binary() {
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src="$1"
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dst="$2"
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if [ -w "$INSTALL_DIR" ] || { [ ! -e "$INSTALL_DIR" ] && [ -w "$(dirname "$INSTALL_DIR")" ]; }; then
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mkdir -p "$INSTALL_DIR"
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install -m 0755 "$src" "$dst"
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elif command -v sudo >/dev/null 2>&1; then
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sudo mkdir -p "$INSTALL_DIR"
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sudo install -m 0755 "$src" "$dst"
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else
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die "cannot write to $INSTALL_DIR and sudo is not available"
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fi
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}
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need_cmd uname
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need_cmd tar
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need_cmd mktemp
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need_cmd grep
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need_cmd install
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ARCH="$(detect_arch)"
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OS="$(detect_os)"
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if [ "$OS" != "linux" ]; then
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case "$OS" in
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openbsd)
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die "install.sh installs only Linux release artifacts. On OpenBSD, build from source (see docs/OPENBSD.en.md)."
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;;
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*)
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die "unsupported operating system for install.sh: $OS"
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;;
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esac
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fi
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LIBC="$(detect_libc)"
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case "$VERSION" in
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latest)
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URL="https://github.com/$REPO/releases/latest/download/${BIN_NAME}-${ARCH}-linux-${LIBC}.tar.gz"
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;;
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*)
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URL="https://github.com/$REPO/releases/download/${VERSION}/${BIN_NAME}-${ARCH}-linux-${LIBC}.tar.gz"
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;;
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esac
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TMPDIR="$(mktemp -d)"
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trap 'rm -rf "$TMPDIR"' EXIT INT TERM
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say "Installing $BIN_NAME ($VERSION) for $ARCH-linux-$LIBC..."
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fetch_to_stdout "$URL" | tar -xzf - -C "$TMPDIR"
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[ -f "$TMPDIR/$BIN_NAME" ] || die "archive did not contain $BIN_NAME"
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install_binary "$TMPDIR/$BIN_NAME" "$INSTALL_DIR/$BIN_NAME"
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say "Installed: $INSTALL_DIR/$BIN_NAME"
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"$INSTALL_DIR/$BIN_NAME" --version 2>/dev/null || true
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