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utils.php
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842 lines (725 loc) · 21.1 KB
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<?php
// Utilities that do NOT depend on WordPress code.
namespace WP_CLI\Utils;
use \Composer\Semver\Comparator;
use \Composer\Semver\Semver;
use \WP_CLI;
use \WP_CLI\Dispatcher;
use \WP_CLI\Iterators\Transform;
function inside_phar() {
return 0 === strpos( WP_CLI_ROOT, 'phar://' );
}
// Files that need to be read by external programs have to be extracted from the Phar archive.
function extract_from_phar( $path ) {
if ( ! inside_phar() ) {
return $path;
}
$fname = basename( $path );
$tmp_path = get_temp_dir() . "wp-cli-$fname";
copy( $path, $tmp_path );
register_shutdown_function( function() use ( $tmp_path ) {
@unlink( $tmp_path );
} );
return $tmp_path;
}
function load_dependencies() {
if ( inside_phar() ) {
if ( file_exists( WP_CLI_ROOT . '/vendor/autoload.php' ) ) {
require WP_CLI_ROOT . '/vendor/autoload.php';
} elseif ( file_exists( dirname( dirname( WP_CLI_ROOT ) ) . '/autoload.php' ) ) {
require dirname( dirname( WP_CLI_ROOT ) ) . '/autoload.php';
}
return;
}
$has_autoload = false;
foreach ( get_vendor_paths() as $vendor_path ) {
if ( file_exists( $vendor_path . '/autoload.php' ) ) {
require $vendor_path . '/autoload.php';
$has_autoload = true;
break;
}
}
if ( !$has_autoload ) {
fputs( STDERR, "Internal error: Can't find Composer autoloader.\nTry running: composer install\n" );
exit(3);
}
}
function get_vendor_paths() {
$vendor_paths = array(
WP_CLI_ROOT . '/../../../vendor', // part of a larger project / installed via Composer (preferred)
WP_CLI_ROOT . '/vendor', // top-level project / installed as Git clone
);
$maybe_composer_json = WP_CLI_ROOT . '/../../../composer.json';
if ( file_exists( $maybe_composer_json ) && is_readable( $maybe_composer_json ) ) {
$composer = json_decode( file_get_contents( $maybe_composer_json ) );
if ( ! empty( $composer->config ) && ! empty( $composer->config->{'vendor-dir'} ) ) {
array_unshift( $vendor_paths, WP_CLI_ROOT . '/../../../' . $composer->config->{'vendor-dir'} );
}
}
return $vendor_paths;
}
// Using require() directly inside a class grants access to private methods to the loaded code
function load_file( $path ) {
require_once $path;
}
function load_command( $name ) {
$path = WP_CLI_ROOT . "/php/commands/$name.php";
if ( is_readable( $path ) ) {
include_once $path;
}
}
function load_all_commands() {
$cmd_dir = WP_CLI_ROOT . '/php/commands';
$iterator = new \DirectoryIterator( $cmd_dir );
foreach ( $iterator as $filename ) {
if ( '.php' != substr( $filename, -4 ) )
continue;
include_once "$cmd_dir/$filename";
}
}
/**
* Like array_map(), except it returns a new iterator, instead of a modified array.
*
* Example:
*
* $arr = array('Football', 'Socker');
*
* $it = iterator_map($arr, 'strtolower', function($val) {
* return str_replace('foo', 'bar', $val);
* });
*
* foreach ( $it as $val ) {
* var_dump($val);
* }
*
* @param array|object Either a plain array or another iterator
* @param callback The function to apply to an element
* @return object An iterator that applies the given callback(s)
*/
function iterator_map( $it, $fn ) {
if ( is_array( $it ) ) {
$it = new \ArrayIterator( $it );
}
if ( !method_exists( $it, 'add_transform' ) ) {
$it = new Transform( $it );
}
foreach ( array_slice( func_get_args(), 1 ) as $fn ) {
$it->add_transform( $fn );
}
return $it;
}
/**
* Search for file by walking up the directory tree until the first file is found or until $stop_check($dir) returns true
* @param string|array The files (or file) to search for
* @param string|null The directory to start searching from; defaults to CWD
* @param callable Function which is passed the current dir each time a directory level is traversed
* @return null|string Null if the file was not found
*/
function find_file_upward( $files, $dir = null, $stop_check = null ) {
$files = (array) $files;
if ( is_null( $dir ) ) {
$dir = getcwd();
}
while ( @is_readable( $dir ) ) {
// Stop walking up when the supplied callable returns true being passed the $dir
if ( is_callable( $stop_check ) && call_user_func( $stop_check, $dir ) ) {
return null;
}
foreach ( $files as $file ) {
$path = $dir . DIRECTORY_SEPARATOR . $file;
if ( file_exists( $path ) ) {
return $path;
}
}
$parent_dir = dirname( $dir );
if ( empty($parent_dir) || $parent_dir === $dir ) {
break;
}
$dir = $parent_dir;
}
return null;
}
function is_path_absolute( $path ) {
// Windows
if ( isset($path[1]) && ':' === $path[1] )
return true;
return $path[0] === '/';
}
/**
* Composes positional arguments into a command string.
*
* @param array
* @return string
*/
function args_to_str( $args ) {
return ' ' . implode( ' ', array_map( 'escapeshellarg', $args ) );
}
/**
* Composes associative arguments into a command string.
*
* @param array
* @return string
*/
function assoc_args_to_str( $assoc_args ) {
$str = '';
foreach ( $assoc_args as $key => $value ) {
if ( true === $value )
$str .= " --$key";
else
$str .= " --$key=" . escapeshellarg( $value );
}
return $str;
}
/**
* Given a template string and an arbitrary number of arguments,
* returns the final command, with the parameters escaped.
*/
function esc_cmd( $cmd ) {
if ( func_num_args() < 2 )
trigger_error( 'esc_cmd() requires at least two arguments.', E_USER_WARNING );
$args = func_get_args();
$cmd = array_shift( $args );
return vsprintf( $cmd, array_map( 'escapeshellarg', $args ) );
}
function locate_wp_config() {
static $path;
if ( null === $path ) {
if ( file_exists( ABSPATH . 'wp-config.php' ) )
$path = ABSPATH . 'wp-config.php';
elseif ( file_exists( ABSPATH . '../wp-config.php' ) && ! file_exists( ABSPATH . '/../wp-settings.php' ) )
$path = ABSPATH . '../wp-config.php';
else
$path = false;
if ( $path )
$path = realpath( $path );
}
return $path;
}
function wp_version_compare( $since, $operator ) {
return version_compare( str_replace( array( '-src' ), '', $GLOBALS['wp_version'] ), $since, $operator );
}
/**
* Render a collection of items as an ASCII table, JSON, CSV, YAML, list of ids, or count.
*
* Given a collection of items with a consistent data structure:
*
* ```
* $items = array(
* array(
* 'key' => 'foo',
* 'value' => 'bar',
* )
* );
* ```
*
* Render `$items` as an ASCII table:
*
* ```
* WP_CLI\Utils\format_items( 'table', $items, array( 'key', 'value' ) );
*
* # +-----+-------+
* # | key | value |
* # +-----+-------+
* # | foo | bar |
* # +-----+-------+
* ```
*
* Or render `$items` as YAML:
*
* ```
* WP_CLI\Utils\format_items( 'yaml', $items, array( 'key', 'value' ) );
*
* # ---
* # -
* # key: foo
* # value: bar
* ```
*
* @access public
* @category Output
*
* @param string $format Format to use: 'table', 'json', 'csv', 'yaml', 'ids', 'count'
* @param array $items An array of items to output.
* @param array|string $fields Named fields for each item of data. Can be array or comma-separated list.
* @return null
*/
function format_items( $format, $items, $fields ) {
$assoc_args = compact( 'format', 'fields' );
$formatter = new \WP_CLI\Formatter( $assoc_args );
$formatter->display_items( $items );
}
/**
* Write data as CSV to a given file.
*
* @access public
*
* @param resource $fd File descriptor
* @param array $rows Array of rows to output
* @param array $headers List of CSV columns (optional)
*/
function write_csv( $fd, $rows, $headers = array() ) {
if ( ! empty( $headers ) ) {
fputcsv( $fd, $headers );
}
foreach ( $rows as $row ) {
if ( ! empty( $headers ) ) {
$row = pick_fields( $row, $headers );
}
fputcsv( $fd, array_values( $row ) );
}
}
/**
* Pick fields from an associative array or object.
*
* @param array|object Associative array or object to pick fields from
* @param array List of fields to pick
* @return array
*/
function pick_fields( $item, $fields ) {
$item = (object) $item;
$values = array();
foreach ( $fields as $field ) {
$values[ $field ] = isset( $item->$field ) ? $item->$field : null;
}
return $values;
}
/**
* Launch system's $EDITOR for the user to edit some text.
*
* @access public
* @category Input
*
* @param string $content Some form of text to edit (e.g. post content)
* @return string|bool Edited text, if file is saved from editor; false, if no change to file.
*/
function launch_editor_for_input( $input, $filename = 'WP-CLI' ) {
$tmpdir = get_temp_dir();
do {
$tmpfile = basename( $filename );
$tmpfile = preg_replace( '|\.[^.]*$|', '', $tmpfile );
$tmpfile .= '-' . substr( md5( rand() ), 0, 6 );
$tmpfile = $tmpdir . $tmpfile . '.tmp';
$fp = @fopen( $tmpfile, 'x' );
if ( ! $fp && is_writable( $tmpdir ) && file_exists( $tmpfile ) ) {
$tmpfile = '';
continue;
}
if ( $fp ) {
fclose( $fp );
}
} while( ! $tmpfile );
if ( ! $tmpfile ) {
\WP_CLI::error( 'Error creating temporary file.' );
}
$output = '';
file_put_contents( $tmpfile, $input );
$editor = getenv( 'EDITOR' );
if ( !$editor ) {
if ( isset( $_SERVER['OS'] ) && false !== strpos( $_SERVER['OS'], 'indows' ) )
$editor = 'notepad';
else
$editor = 'vi';
}
$descriptorspec = array( STDIN, STDOUT, STDERR );
$process = proc_open( "$editor " . escapeshellarg( $tmpfile ), $descriptorspec, $pipes );
$r = proc_close( $process );
if ( $r ) {
exit( $r );
}
$output = file_get_contents( $tmpfile );
unlink( $tmpfile );
if ( $output === $input )
return false;
return $output;
}
/**
* @param string MySQL host string, as defined in wp-config.php
* @return array
*/
function mysql_host_to_cli_args( $raw_host ) {
$assoc_args = array();
$host_parts = explode( ':', $raw_host );
if ( count( $host_parts ) == 2 ) {
list( $assoc_args['host'], $extra ) = $host_parts;
$extra = trim( $extra );
if ( is_numeric( $extra ) ) {
$assoc_args['port'] = intval( $extra );
$assoc_args['protocol'] = 'tcp';
} else if ( $extra !== '' ) {
$assoc_args['socket'] = $extra;
}
} else {
$assoc_args['host'] = $raw_host;
}
return $assoc_args;
}
function run_mysql_command( $cmd, $assoc_args, $descriptors = null ) {
if ( !$descriptors )
$descriptors = array( STDIN, STDOUT, STDERR );
if ( isset( $assoc_args['host'] ) ) {
$assoc_args = array_merge( $assoc_args, mysql_host_to_cli_args( $assoc_args['host'] ) );
}
$pass = $assoc_args['pass'];
unset( $assoc_args['pass'] );
$old_pass = getenv( 'MYSQL_PWD' );
putenv( 'MYSQL_PWD=' . $pass );
$final_cmd = $cmd . assoc_args_to_str( $assoc_args );
$proc = proc_open( $final_cmd, $descriptors, $pipes );
if ( !$proc )
exit(1);
$r = proc_close( $proc );
putenv( 'MYSQL_PWD=' . $old_pass );
if ( $r ) exit( $r );
}
/**
* Render PHP or other types of files using Mustache templates.
*
* IMPORTANT: Automatic HTML escaping is disabled!
*/
function mustache_render( $template_name, $data = array() ) {
if ( ! file_exists( $template_name ) )
$template_name = WP_CLI_ROOT . "/templates/$template_name";
$template = file_get_contents( $template_name );
$m = new \Mustache_Engine( array(
'escape' => function ( $val ) { return $val; }
) );
return $m->render( $template, $data );
}
/**
* Create a progress bar to display percent completion of a given operation.
*
* Progress bar is written to STDOUT, and disabled when command is piped. Progress
* advances with `$progress->tick()`, and completes with `$progress->finish()`.
* Process bar also indicates elapsed time and expected total time.
*
* ```
* # `wp user generate` ticks progress bar each time a new user is created.
* #
* # $ wp user generate --count=500
* # Generating users 22 % [=======> ] 0:05 / 0:23
*
* $progress = \WP_CLI\Utils\make_progress_bar( 'Generating users', $count );
* for ( $i = 0; $i < $count; $i++ ) {
* // uses wp_insert_user() to insert the user
* $progress->tick();
* }
* $progress->finish();
* ```
*
* @access public
* @category Output
*
* @param string $message Text to display before the progress bar.
* @param integer $count Total number of ticks to be performed.
* @return cli\progress\Bar|WP_CLI\NoOp
*/
function make_progress_bar( $message, $count ) {
if ( \cli\Shell::isPiped() )
return new \WP_CLI\NoOp;
return new \cli\progress\Bar( $message, $count );
}
function parse_url( $url ) {
$url_parts = \parse_url( $url );
if ( !isset( $url_parts['scheme'] ) ) {
$url_parts = parse_url( 'http://' . $url );
}
return $url_parts;
}
/**
* Check if we're running in a Windows environment (cmd.exe).
*/
function is_windows() {
return strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
}
/**
* Replace magic constants in some PHP source code.
*
* @param string $source The PHP code to manipulate.
* @param string $path The path to use instead of the magic constants
*/
function replace_path_consts( $source, $path ) {
$replacements = array(
'__FILE__' => "'$path'",
'__DIR__' => "'" . dirname( $path ) . "'"
);
$old = array_keys( $replacements );
$new = array_values( $replacements );
return str_replace( $old, $new, $source );
}
/**
* Make a HTTP request to a remote URL.
*
* Wraps the Requests HTTP library to ensure every request includes a cert.
*
* ```
* # `wp core download` verifies the hash for a downloaded WordPress archive
*
* $md5_response = Utils\http_request( 'GET', $download_url . '.md5' );
* if ( 20 != substr( $md5_response->status_code, 0, 2 ) ) {
* WP_CLI::error( "Couldn't access md5 hash for release (HTTP code {$response->status_code})" );
* }
* ```
*
* @access public
*
* @param string $method HTTP method (GET, POST, DELETE, etc.)
* @param string $url URL to make the HTTP request to.
* @param array $headers Add specific headers to the request.
* @param array $options
* @return object
*/
function http_request( $method, $url, $data = null, $headers = array(), $options = array() ) {
$cert_path = '/rmccue/requests/library/Requests/Transport/cacert.pem';
if ( inside_phar() ) {
// cURL can't read Phar archives
$options['verify'] = extract_from_phar(
WP_CLI_ROOT . '/vendor' . $cert_path );
} else {
foreach( get_vendor_paths() as $vendor_path ) {
if ( file_exists( $vendor_path . $cert_path ) ) {
$options['verify'] = $vendor_path . $cert_path;
break;
}
}
if ( empty( $options['verify'] ) ){
WP_CLI::error_log( "Cannot find SSL certificate." );
}
}
try {
$request = \Requests::request( $url, $headers, $data, $method, $options );
return $request;
} catch( \Requests_Exception $ex ) {
// Handle SSL certificate issues gracefully
\WP_CLI::warning( $ex->getMessage() );
$options['verify'] = false;
try {
return \Requests::request( $url, $headers, $data, $method, $options );
} catch( \Requests_Exception $ex ) {
\WP_CLI::error( $ex->getMessage() );
}
}
}
/**
* Increments a version string using the "x.y.z-pre" format
*
* Can increment the major, minor or patch number by one
* If $new_version == "same" the version string is not changed
* If $new_version is not a known keyword, it will be used as the new version string directly
*
* @param string $current_version
* @param string $new_version
* @return string
*/
function increment_version( $current_version, $new_version ) {
// split version assuming the format is x.y.z-pre
$current_version = explode( '-', $current_version, 2 );
$current_version[0] = explode( '.', $current_version[0] );
switch ( $new_version ) {
case 'same':
// do nothing
break;
case 'patch':
$current_version[0][2]++;
$current_version = array( $current_version[0] ); // drop possible pre-release info
break;
case 'minor':
$current_version[0][1]++;
$current_version[0][2] = 0;
$current_version = array( $current_version[0] ); // drop possible pre-release info
break;
case 'major':
$current_version[0][0]++;
$current_version[0][1] = 0;
$current_version[0][2] = 0;
$current_version = array( $current_version[0] ); // drop possible pre-release info
break;
default: // not a keyword
$current_version = array( array( $new_version ) );
break;
}
// reconstruct version string
$current_version[0] = implode( '.', $current_version[0] );
$current_version = implode( '-', $current_version );
return $current_version;
}
/**
* Compare two version strings to get the named semantic version.
*
* @access public
*
* @param string $new_version
* @param string $original_version
* @return string $name 'major', 'minor', 'patch'
*/
function get_named_sem_ver( $new_version, $original_version ) {
if ( ! Comparator::greaterThan( $new_version, $original_version ) ) {
return '';
}
$parts = explode( '-', $original_version );
$bits = explode( '.', $parts[0] );
$major = $bits[0];
if ( isset( $bits[1] ) ) {
$minor = $bits[1];
}
if ( isset( $bits[2] ) ) {
$patch = $bits[2];
}
if ( ! is_null( $minor ) && Semver::satisfies( $new_version, "{$major}.{$minor}.x" ) ) {
return 'patch';
} else if ( Semver::satisfies( $new_version, "{$major}.x.x" ) ) {
return 'minor';
} else {
return 'major';
}
}
/**
* Return the flag value or, if it's not set, the $default value.
*
* Because flags can be negated (e.g. --no-quiet to negate --quiet), this
* function provides a safer alternative to using
* `isset( $assoc_args['quiet'] )` or similar.
*
* @access public
* @category Input
*
* @param array $assoc_args Arguments array.
* @param string $flag Flag to get the value.
* @param mixed $default Default value for the flag. Default: NULL
* @return mixed
*/
function get_flag_value( $assoc_args, $flag, $default = null ) {
return isset( $assoc_args[ $flag ] ) ? $assoc_args[ $flag ] : $default;
}
/**
* Get the system's temp directory. Warns user if it isn't writable.
*
* @access public
* @category System
*
* @return string
*/
function get_temp_dir() {
static $temp = '';
$trailingslashit = function( $path ) {
return rtrim( $path ) . '/';
};
if ( $temp )
return $trailingslashit( $temp );
if ( function_exists( 'sys_get_temp_dir' ) ) {
$temp = sys_get_temp_dir();
} else if ( ini_get( 'upload_tmp_dir' ) ) {
$temp = ini_get( 'upload_tmp_dir' );
} else {
$temp = '/tmp/';
}
if ( ! @is_writable( $temp ) ) {
\WP_CLI::warning( "Temp directory isn't writable: {$temp}" );
}
return $trailingslashit( $temp );
}
/**
* Parse a SSH url for its host, port, and path.
*
* Similar to parse_url(), but adds support for defined SSH aliases.
*
* ```
* host OR host/path/to/wordpress OR host:port/path/to/wordpress
* ```
*
* @access public
*
* @return mixed
*/
function parse_ssh_url( $url, $component = -1 ) {
preg_match( '#^([^:/~]+)(:([\d]+))?((/|~)(.+))?$#', $url, $matches );
$bits = array();
foreach( array(
1 => 'host',
3 => 'port',
4 => 'path',
) as $i => $key ) {
if ( ! empty( $matches[ $i ] ) ) {
$bits[ $key ] = $matches[ $i ];
}
}
switch ( $component ) {
case PHP_URL_HOST:
return isset( $bits['host'] ) ? $bits['host'] : null;
case PHP_URL_PATH:
return isset( $bits['path'] ) ? $bits['path'] : null;
case PHP_URL_PORT:
return isset( $bits['port'] ) ? $bits['port'] : null;
default:
return $bits;
}
}
/**
* Report the results of the same operation against multiple resources.
*
* @access public
* @category Input
*
* @param string $noun Resource being affected (e.g. plugin)
* @param string $verb Type of action happening to the noun (e.g. activate)
* @param integer $total Total number of resource being affected.
* @param integer $successes Number of successful operations.
* @param integer $failures Number of failures.
*/
function report_batch_operation_results( $noun, $verb, $total, $successes, $failures ) {
$plural_noun = $noun . 's';
if ( in_array( $verb, array( 'reset' ), true ) ) {
$past_tense_verb = $verb;
} else {
$past_tense_verb = 'e' === substr( $verb, -1 ) ? $verb . 'd' : $verb . 'ed';
}
$past_tense_verb_upper = ucfirst( $past_tense_verb );
if ( $failures ) {
if ( $successes ) {
WP_CLI::error( "Only {$past_tense_verb} {$successes} of {$total} {$plural_noun}." );
} else {
WP_CLI::error( "No {$plural_noun} {$past_tense_verb}." );
}
} else {
if ( $successes ) {
WP_CLI::success( "{$past_tense_verb_upper} {$successes} of {$total} {$plural_noun}." );
} else {
$message = $total > 1 ? ucfirst( $plural_noun ) : ucfirst( $noun );
WP_CLI::success( "{$message} already {$past_tense_verb}." );
}
}
}
/**
* Parse a string of command line arguments into an $argv-esqe variable.
*
* @access public
* @category Input
*
* @param string $arguments
* @return array
*/
function parse_str_to_argv( $arguments ) {
preg_match_all ('/(?<=^|\s)([\'"]?)(.+?)(?<!\\\\)\1(?=$|\s)/', $arguments, $matches );
$argv = isset( $matches[0] ) ? $matches[0] : array();
$argv = array_map( function( $arg ){
foreach( array( '"', "'" ) as $char ) {
if ( $char === substr( $arg, 0, 1 ) && $char === substr( $arg, -1 ) ) {
$arg = substr( $arg, 1, -1 );
break;
}
}
return $arg;
}, $argv );
return $argv;
}
/**
* Locale-independent version of basename()
*
* @access public
*
* @param string $path
* @param string $suffix
* @return string
*/
function basename( $path, $suffix = '' ) {
return urldecode( \basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) );
}