1 files changed, 106 insertions, 0 deletions
diff --git a/cli/_cli.php b/cli/_cli.php
index 91fa8de36..9ba6ec006 100644
--- a/cli/_cli.php
+++ b/cli/_cli.php
@@ -76,6 +76,47 @@ function performRequirementCheck(string $databaseType): void {
 }
 
 /**
+ * Parses parameters used with FreshRSS' CLI commands.
+ * @param array{'valid':array<string,string>,'deprecated':array<string,string>} $parameters An array of 'valid': An
+ * array of parameters as keys and their respective getopt() notations as values. 'deprecated' An array with
+ * replacement parameters as keys and their respective deprecated parameters as values.
+ * @return array{'valid':array<string,string|bool>,'invalid':array<string>} An array of 'valid': an array of all
+ * known parameters used and their respective options and 'invalid': an array of all unknown parameters used.
+ */
+function parseCliParams(array $parameters): array {
+	global $argv;
+	$cliParams = [];
+
+	foreach ($parameters['valid'] as $param => $getopt_val) {
+		$cliParams[] = $param . $getopt_val;
+	}
+	foreach ($parameters['deprecated'] as $param => $deprecatedParam) {
+		$cliParams[] = $deprecatedParam . $parameters['valid'][$param];
+	}
+
+	$opts = getopt('', $cliParams);
+
+	/** @var array<string,string|bool> $valid */
+	$valid = is_array($opts) ? $opts : [];
+
+	array_walk($valid, static fn(&$option) => $option = $option === false ? true : $option);
+
+	if (checkforDeprecatedParameterUse(array_keys($valid), $parameters['deprecated'])) {
+		$valid = updateDeprecatedParameters($valid, $parameters['deprecated']);
+	}
+
+	$invalid = findInvalidOptions(
+		$argv,
+		array_merge(array_keys($parameters['valid']), array_values($parameters['deprecated']))
+	);
+
+	return [
+		'valid' => $valid,
+		'invalid' => $invalid
+	];
+}
+
+/**
  * @param array<string> $options
  * @return array<string>
  */
@@ -104,3 +145,68 @@ function validateOptions(array $input, array $params): bool {
 	fwrite(STDERR, sprintf("FreshRSS error: unknown options: %s\n", implode (', ', $unknownOptions)));
 	return false;
 }
+
+/**
+ * Checks for use of unknown parameters with FreshRSS' CLI commands.
+ * @param array<string> $input An array of parameters to check for validity.
+ * @param array<string> $params An array of valid parameters to check against.
+ * @return array<string> Returns an array of all unknown parameters found.
+ */
+function findInvalidOptions(array $input, array $params): array {
+	$sanitizeInput = getLongOptions($input, REGEX_INPUT_OPTIONS);
+	$unknownOptions = array_diff($sanitizeInput, $params);
+
+	if (0 === count($unknownOptions)) {
+		return [];
+	}
+
+	fwrite(STDERR, sprintf("FreshRSS error: unknown options: %s\n", implode (', ', $unknownOptions)));
+	return $unknownOptions;
+}
+
+/**
+ * Checks for use of deprecated parameters with FreshRSS' CLI commands.
+ * @param array<string> $options User inputs to check for deprecated parameter use.
+ * @param array<string,string> $params An array with replacement parameters as keys and their respective deprecated
+ * parameters as values.
+ * @return bool Returns TRUE and generates a deprecation warning if deprecated parameters
+ * have been used, FALSE otherwise.
+ */
+function checkforDeprecatedParameterUse(array $options, array $params): bool {
+	$deprecatedOptions = array_intersect($options, $params);
+	$replacements = array_map(static fn($option) => array_search($option, $params, true), $deprecatedOptions);
+
+	if (0 === count($deprecatedOptions)) {
+		return false;
+	}
+
+	fwrite(STDERR, "FreshRSS deprecation warning: the CLI option(s): " . implode(', ', $deprecatedOptions) .
+		" are deprecated and will be removed in a future release. Use: "
+		. implode(', ', $replacements) . " instead\n");
+	return true;
+}
+
+/**
+ * Switches all used deprecated parameters to their replacements if they have one.
+ *
+ * @template T
+ *
+ * @param array<string,T> $options User inputs.
+ * @param array<string,string> $params An array with replacement parameters as keys and their respective deprecated
+ * parameters as values.
+ * @return array<string,T>  Returns $options with deprications replaced.
+ */
+function updateDeprecatedParameters(array $options, array $params): array {
+	$updatedOptions = [];
+
+	foreach ($options as $param => $option) {
+		$replacement = array_search($param, $params, true);
+		if (is_string($replacement)) {
+			$updatedOptions[$replacement] = $option;
+		} else {
+			$updatedOptions[$param] = $option;
+		}
+	}
+
+	return $updatedOptions;
+}