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install-linux.sh: derive sudo prefix instead of hardcoding it

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Set SUDO once (empty when already root, "sudo " when sudo is available,
empty with a warning otherwise) and build INSTALL_CMD from it, so the printed
install command is correct on root/container hosts without sudo.
This commit is contained in:
abuckit
2026-06-18 18:17:00 -04:00
parent 61b1d5c4fc
commit c0951456cf
1 changed files with 24 additions and 8 deletions
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packaging/install-linux.sh
+24 -8
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@@ -36,6 +36,20 @@ info() {
echo "==> $*"
}
# detect_sudo sets SUDO to the privilege-escalation prefix for install
# commands: empty when already root, "sudo " when sudo is available, otherwise
# empty with a warning (the printed command must then be run as root).
detect_sudo() {
if [ "$(id -u)" -eq 0 ]; then
SUDO=""
elif command -v sudo >/dev/null 2>&1; then
SUDO="sudo "
else
SUDO=""
info "not running as root and sudo not found — run the install command below as root"
fi
}
# detect_arch sets ARCH to the Go-style arch tuple (amd64 / arm64) and
# requires a Linux host — native packages are Linux-only.
detect_arch() {
@@ -52,31 +66,32 @@ detect_arch() {
# detect_pkg sets PKG (rpm|deb|apk) and INSTALL_CMD (the command prefix used
# to install a local package file) based on the available package manager.
# Requires SUDO to be set first (see detect_sudo).
detect_pkg() {
if command -v dnf >/dev/null 2>&1; then
PKG="rpm"
INSTALL_CMD="sudo dnf install"
INSTALL_CMD="${SUDO}dnf install"
elif command -v yum >/dev/null 2>&1; then
PKG="rpm"
INSTALL_CMD="sudo yum install"
INSTALL_CMD="${SUDO}yum install"
elif command -v zypper >/dev/null 2>&1; then
PKG="rpm"
INSTALL_CMD="sudo zypper install"
INSTALL_CMD="${SUDO}zypper install"
elif command -v apt >/dev/null 2>&1; then
PKG="deb"
INSTALL_CMD="sudo apt install"
INSTALL_CMD="${SUDO}apt install"
elif command -v apt-get >/dev/null 2>&1; then
PKG="deb"
INSTALL_CMD="sudo apt-get install"
INSTALL_CMD="${SUDO}apt-get install"
elif command -v apk >/dev/null 2>&1; then
PKG="apk"
INSTALL_CMD="sudo apk add --allow-untrusted"
INSTALL_CMD="${SUDO}apk add --allow-untrusted"
elif command -v rpm >/dev/null 2>&1; then
PKG="rpm"
INSTALL_CMD="sudo rpm -i"
INSTALL_CMD="${SUDO}rpm -i"
elif command -v dpkg >/dev/null 2>&1; then
PKG="deb"
INSTALL_CMD="sudo dpkg -i"
INSTALL_CMD="${SUDO}dpkg -i"
else
err "no supported package manager found (need dnf/yum/zypper, apt/dpkg, or apk)"
fi
@@ -143,6 +158,7 @@ pkg_version() {
main() {
detect_arch
detect_sudo
detect_pkg
info "platform: linux-$ARCH ($PKG)"