52 lines
1.5 KiB
Bash
52 lines
1.5 KiB
Bash
#!/usr/bin/env bash
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# ============================================
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# Core — shell introspection
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# ============================================
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function core::function_exists() { declare -F "$1" >/dev/null 2>&1; }
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function core::variable_exists() { declare -p "$1" &>/dev/null; }
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function core::array_exists() { [[ "$(declare -p "$1" 2>/dev/null)" == "declare -a"* ]]; }
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function core::call_if_exists() {
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local fn="$1"
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shift
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if declare -F "$fn" >/dev/null 2>&1; then
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"$fn" "$@"
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fi
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return 0
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}
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# ============================================
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# String
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# ============================================
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function string::trim() { echo "$1" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//'; }
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function string::to_lower() { echo "$1" | tr '[:upper:]' '[:lower:]'; }
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function string::to_upper() { echo "$1" | tr '[:lower:]' '[:upper:]'; }
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function string::contains() { [[ "$1" == *"$2"* ]]; }
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function string::starts_with() { [[ "$1" == "$2"* ]]; }
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function string::ends_with() { [[ "$1" == *"$2" ]]; }
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function string::is_empty() { [[ -z "$1" ]]; }
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# ============================================
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# System
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# ============================================
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function system::require_root() {
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if [[ "$EUID" -ne 0 ]]; then
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log::error "wgctl must be run as root"
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exit 1
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fi
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}
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function system::command_exists() {
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command -v "$1" >/dev/null 2>&1
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}
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function system::require_command() {
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if ! system::command_exists "$1"; then
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log::error "Required command not found: $1"
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exit 1
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fi
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}
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