1 files changed, 109 insertions, 0 deletions
diff --git a/src/lib/config.cli.source.sh b/src/lib/config.cli.source.sh
new file mode 100644
index 0000000..1df4b84
--- /dev/null
+++ b/src/lib/config.cli.source.sh
@@ -0,0 +1,109 @@
+option_value() {
+    local -r option="$1"; shift
+    local -r argument="${CLI_OPTION_ARGUMENT[$option]:-value}"
+
+    if (( $# == 0 )) || [ -z "$1" ]; then
+        printf 'Error: %s requires a %s\n' "$option" "$argument" >&2
+        usage
+        exit 1
+    fi
+
+    printf '%s\n' "$1"
+}
+
+apply_cli_override() {
+    local -r config_target="$1"; shift
+
+    if [[ -v "cli_overrides[$config_target]" ]]; then
+        printf -v "$config_target" '%s' "${cli_overrides[$config_target]}"
+    fi
+}
+
+apply_cli_overrides() {
+    local config_target
+
+    for config_target in "${CLI_CONFIG_OVERRIDE_TARGETS[@]}"; do
+        apply_cli_override "$config_target"
+    done
+
+    if (( ${#cli_sync_destinations[@]} > 0 )); then
+        SYNC_DESTINATIONS=("${cli_sync_destinations[@]}")
+    fi
+}
+
+set_cli_option_value() {
+    local -r option="$1"; shift
+    local -r value="$1"; shift
+    local config_target
+
+    if [ "$option" = --sync-destination ]; then
+        cli_sync_destinations+=("$value")
+        has_config_overrides='yes'
+        return
+    fi
+
+    config_target="${CLI_OPTION_CONFIG_TARGET[$option]:-}"
+    if [ -n "$config_target" ]; then
+        cli_overrides["$config_target"]="$value"
+        has_config_overrides='yes'
+        return
+    fi
+
+    printf -v "${CLI_OPTION_TARGET[$option]}" '%s' "$value"
+}
+
+set_cli_constant_option() {
+    local -r option="$1"; shift
+    local -r value="${CLI_OPTION_VALUE[$option]}"
+    local config_target
+
+    config_target="${CLI_OPTION_CONFIG_TARGET[$option]:-}"
+    if [ -n "$config_target" ]; then
+        cli_overrides["$config_target"]="$value"
+        has_config_overrides='yes'
+        return
+    fi
+
+    printf -v "${CLI_OPTION_TARGET[$option]}" '%s' "$value"
+}
+
+set_cli_action() {
+    local -r selected_action="$1"; shift
+
+    if [ -n "$action" ]; then
+        usage
+        exit 1
+    fi
+
+    action="$selected_action"
+}
+
+parse_cli_arguments() {
+    local option_arg
+    local option
+    local option_kind
+
+    while (( $# > 0 )); do
+        option="$1"
+        shift
+
+        option_kind="${CLI_OPTION_KIND[$option]:-}"
+        case "$option_kind" in
+            value)
+                option_arg=$(option_value "$option" "$@")
+                set_cli_option_value "$option" "$option_arg"
+                shift
+                ;;
+            flag|output)
+                set_cli_constant_option "$option"
+                ;;
+            action)
+                set_cli_action "$option"
+                ;;
+            *)
+                usage
+                exit 1
+                ;;
+        esac
+    done
+}