wehub-resource-sync
58 lines
1.8 KiB
Bash
58 lines
1.8 KiB
Bash
# os.sh — OS/distro detection, command_exists, version_ge
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# Depends-On: colors.sh
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# Requires-Vars: (none)
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# Sets-Vars: $OS $DISTRO
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# Include via: @include lib/os.sh
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# Sets OS (macOS | Linux | Windows | Unknown) and DISTRO (ubuntu | debian | …)
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detect_os() {
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case "$(uname -s)" in
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Linux*) OS=Linux ;;
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Darwin*) OS=macOS ;;
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CYGWIN*) OS=Windows ;;
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MINGW*) OS=Windows ;;
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*) OS=Unknown ;;
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esac
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print_info "Detected OS: $OS"
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if [ "$OS" = "Linux" ] && [ -f /etc/os-release ]; then
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# shellcheck source=/dev/null
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. /etc/os-release
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DISTRO=$ID
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print_info "Detected Linux distribution: $DISTRO"
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else
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DISTRO=unknown
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fi
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}
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# Returns 0 if the given command is on PATH
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command_exists() { command -v "$1" >/dev/null 2>&1; }
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# Boolean helpers — use these in business logic instead of inline string comparisons
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is_macos() { [ "$OS" = "macOS" ]; }
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is_linux_apt() { [ "$OS" = "Linux" ] && { [ "$DISTRO" = "ubuntu" ] || [ "$DISTRO" = "debian" ]; }; }
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# Returns 0 (true) if $1 >= $2 (semantic version comparison)
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version_ge() { printf '%s\n%s\n' "$2" "$1" | sort -V -C; }
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# Assert that the current OS/distro is supported (macOS or Ubuntu/Debian).
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# Optional $1: hint message printed on failure (e.g. manual install instructions).
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# Exits with code 1 on unsupported OS or distro.
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assert_supported_os() {
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local hint="${1:-}"
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if [ "$OS" = "Linux" ]; then
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if [ "$DISTRO" = "ubuntu" ] || [ "$DISTRO" = "debian" ]; then
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return 0
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fi
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print_error "Unsupported Linux distribution: $DISTRO"
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[ -n "$hint" ] && print_info "$hint"
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exit 1
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elif [ "$OS" = "macOS" ]; then
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return 0
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else
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print_error "Unsupported OS: $OS"
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[ -n "$hint" ] && print_info "$hint"
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exit 1
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fi
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}
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