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ext_skel.php	13.11 KB	-rw-r--r--

Code Editor : ext_skel.php

#!/usr/bin/env php
<?php
/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Kalle Sommer Nielsen <kalle@php.net>                        |
   +----------------------------------------------------------------------+
*/

/* $Id: ae7a3a987c0a9a6a0d4d07cc79eed0afa15e79dc $ */

/* {{{ error */
function error($message) {
    printf('Error: %s%s', $message, PHP_EOL);
    exit;
}
/* }}} */

/* {{{ print_help */
function print_help() {
    if (PHP_OS_FAMILY != 'Windows') {
        $file_prefix = './';
        $make_prefix = '';
    } else {
        $file_prefix = '';
        $make_prefix = 'n';
    }

echo <<<HELP
WHAT IT IS

It's a tool for automatically creating the basic framework for a PHP extension.

HOW TO USE IT

Very simple. First, change to the ext/ directory of the PHP sources. Then run
  the following

php ext_skel.php --ext extension_name

and everything you need will be placed in directory ext/extension_name.

If you don't need to test the existence of any external header files,
  libraries or functions in them, the extension is ready to be compiled in PHP.
  To compile the extension run the following:

cd extension_name
    phpize
    {$file_prefix}configure
    {$make_prefix}make

Don't forget to run tests once the compilation is done:

{$make_prefix}make test

Alternatively, to compile extension in the PHP:

cd /path/to/php-src
    {$file_prefix}buildconf
    {$file_prefix}configure --enable-extension_name
    {$make_prefix}make
    {$make_prefix}make test TESTS=ext/extension_name/tests

The definition of PHP_extension_NAME_VERSION will be present in the
  php_extension_name.h and injected into the zend_extension_entry definition.
  This is required by the PECL website for the version string conformity checks
  against package.xml

SOURCE AND HEADER FILE NAME

The ext_skel.php script generates 'extension_name.c' and 'php_extension_name.h'
  as the main source and header files. Keep these names.

extension functions (User functions) must be named

extension_name_function()

When you need to expose extension functions to other extensions, expose
  functions strictly needed by others. Exposed internal function must be named

php_extension_name_function()

See also CODING_STANDARDS.md.

OPTIONS

php ext_skel.php --ext <name> [--experimental] [--author <name>]
                   [--dir <path>] [--std] [--onlyunix]
                   [--onlywindows] [--help]

--ext <name>          The name of the extension defined as <name>
  --experimental        Passed if this extension is experimental, this creates
                        the EXPERIMENTAL file in the root of the extension
  --author <name>       Your name, this is used if --std is passed and for the
                        CREDITS file
  --dir <path>          Path to the directory for where extension should be
                        created. Defaults to the directory of where this script
                        lives
  --std                 If passed, the standard header used in extensions that
                        is included in the core, will be used
  --onlyunix            Only generate configure scripts for Unix
  --onlywindows         Only generate configure scripts for Windows
  --help                This help

HELP;
    exit;
}
/* }}} */

/* {{{ task */
function task($label, $callback) {
    printf('%s... ', $label);

$callback();

printf('done%s', PHP_EOL);
}
/* }}} */

/* {{{ print_success */
function print_success() {
    global $options;

if (PHP_OS_FAMILY != 'Windows') {
        $file_prefix = './';
        $make_prefix = '';
    } else {
        $file_prefix = '';
        $make_prefix = 'n';
    }

printf('%1$sSuccess. The extension is now ready to be compiled. To do so, use the%s', PHP_EOL);
    printf('following steps:%1$s%1$s', PHP_EOL);
    printf('cd %s%s%s', $options['dir'], $options['ext'], PHP_EOL);
    printf('phpize%s', PHP_EOL);
    printf('%sconfigure%s', $file_prefix, PHP_EOL);
    printf('%smake%2$s%2$s', $make_prefix, PHP_EOL);
    printf('Don\'t forget to run tests once the compilation is done:%s', PHP_EOL);
    printf('%smake test%2$s%2$s', $make_prefix, PHP_EOL);
    printf('Thank you for using PHP!%s', PHP_EOL);
}
/* }}} */

/* {{{ process_args */
function process_args($argv, $argc) {
    $options = [
            'unix'		=> true,
            'windows' 	=> true,
            'ext' 		=> '',
            'dir'		=> __DIR__ . DIRECTORY_SEPARATOR,
            'skel' 		=> __DIR__ . DIRECTORY_SEPARATOR . 'skeleton' . DIRECTORY_SEPARATOR,
            'author'	=> false,
            'experimental'	=> false,
            'std'		=> false
            ];

for($i = 1; $i < $argc; ++$i)
    {
        $val = $argv[$i];

if($val[0] != '-' || $val[1] != '-')
        {
            continue;
        }

switch($opt = strtolower(substr($val, 2)))
        {
            case 'help': {
                print_help();
            }
            case 'onlyunix': {
                $options['windows'] = false;
            }
            break;
            case 'onlywindows': {
                $options['unix'] = false;
            }
            break;
            case 'experimental': {
                $options['experimental'] = true;
            }
            break;
            case 'std': {
                $options['std'] = true;
            }
            break;
            case 'ext':
            case 'dir':
            case 'author': {
                if (!isset($argv[$i + 1]) || ($argv[$i + 1][0] == '-' && $argv[$i + 1][1] == '-')) {
                    error('Argument "' . $val . '" expects a value, none passed');
                } else if ($opt == 'dir' && empty($argv[$i + 1])) {
                    continue 2;
                }

$options[$opt] = ($opt == 'dir' ? realpath($argv[$i + 1]) . DIRECTORY_SEPARATOR : $argv[$i + 1]);
            }
            break;
            default: {
                error('Unsupported argument "' . $val . '" passed');
            }
        }
    }

if (empty($options['ext'])) {
        error('No extension name passed, use "--ext <name>"');
    } else if (!$options['unix'] && !$options['windows']) {
        error('Cannot pass both --onlyunix and --onlywindows');
    } else if (!is_dir($options['skel'])) {
        error('The skeleton directory was not found');
    }

// Validate extension name
    if (!preg_match('/^[a-z][a-z0-9_]+$/i', $options['ext'])) {
        error('Invalid extension name. Valid names start with a letter,'
            .' followed by any number of letters, numbers, or underscores.'
            .' Using only lower case letters is preferred.');
    }

$options['ext'] = str_replace(['\\', '/'], '', strtolower($options['ext']));

return $options;
}
/* }}} */

/* {{{ process_source_tags */
function process_source_tags($file, $short_name) {
    global $options;

$source = file_get_contents($file);

if ($source === false) {
        error('Unable to open file for reading: ' . $short_name);
    }

$source = str_replace('%EXTNAME%', $options['ext'], $source);
    $source = str_replace('%EXTNAMECAPS%', strtoupper($options['ext']), $source);

if (strpos($short_name, '.c') !== false || strpos($short_name, '.h') !== false) {
        static $header;

if (!$header) {
            if ($options['std']) {
                $author_len = strlen($options['author']);
                $credits = $options['author'] . ($author_len && $author_len <= 60 ? str_repeat(' ', 60 - $author_len) : '');

$header = <<<"HEADER"
/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: $credits |
   +----------------------------------------------------------------------+
*/
HEADER;
            } else {
                if ($options['author']) {
                    $header = sprintf('/* %s extension for PHP (c) %d %s */', $options['ext'], date('Y'), $options['author']);
                } else {
                    $header = sprintf('/* %s extension for PHP */', $options['ext']);
                }
            }
        }

$source = str_replace('%HEADER%', $header, $source);
    }

if (!file_put_contents($file, $source)) {
        error('Unable to save contents to file: ' . $short_name);
    }
}
/* }}} */

/* {{{ copy_config_scripts */
function copy_config_scripts() {
    global $options;

$files = [];

if ($options['unix']) {
        $files[] = 'config.m4';
    }

if ($options['windows']) {
        $files[] = 'config.w32';
    }

$files[] = '.gitignore';

foreach($files as $config_script) {
        $new_config_script = $options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . $config_script;

if (!copy($options['skel'] . $config_script . '.in', $new_config_script)) {
            error('Unable to copy config script: ' . $config_script);
        }

process_source_tags($new_config_script, $config_script);
    }
}
/* }}} */

/* {{{ copy_sources */
function copy_sources() {
    global $options;

$files = [
            'skeleton.c'		=> $options['ext'] . '.c',
            'skeleton.stub.php'	=> $options['ext'] . '.stub.php',
            'php_skeleton.h'	=> 'php_' . $options['ext'] . '.h',
            'skeleton_arginfo.h' => $options['ext'] . '_arginfo.h'
            ];

foreach ($files as $src_file => $dst_file) {
        if (!copy($options['skel'] . $src_file, $options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . $dst_file)) {
            error('Unable to copy source file: ' . $src_file);
        }

process_source_tags($options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . $dst_file, $dst_file);
    }
}
/* }}} */

/* {{{ copy_tests */
function copy_tests() {
    global $options;

$test_files = glob($options['skel'] . 'tests/*', GLOB_MARK);

if (!$test_files) {
        return;
    }

foreach ($test_files as $test) {
        if (is_dir($test)) {
            continue;
        }

$new_test = str_replace([$options['skel'], '/'], ['', DIRECTORY_SEPARATOR], $test);

if (!copy($test, $options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . $new_test)) {
            error('Unable to copy file: ' . $new_test);
        }

process_source_tags($options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . $new_test, $new_test);
    }
}
/* }}} */

if (PHP_SAPI != 'cli') {
    error('This script is only suited for CLI');
}

if ($argc < 1) {
    print_help();
    exit;
}

$options = process_args($argv, $argc);

if (!$options['dir'] || !is_dir($options['dir'])) {
    error('The selected output directory does not exist');
} else if (is_dir($options['dir'] . $options['ext'])) {
    error('There is already a folder named "' . $options['ext'] . '" in the output directory');
} else if (!mkdir($options['dir'] . $options['ext'])) {
    error('Unable to create extension directory in the output directory');
} else if (!mkdir($options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . 'tests')) {
    error('Unable to create the tests directory');
}

if ($options['experimental']) {
    print('Creating EXPERIMENTAL... ');

if (file_put_contents($options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . 'EXPERIMENTAL', '') === false) {
        error('Unable to create the EXPERIMENTAL file');
    }

printf('done%s', PHP_EOL);
}

if (!empty($options['author'])) {
    print('Creating CREDITS... ');

if (!file_put_contents($options['dir'] . $options['ext'] . DIRECTORY_SEPARATOR . 'CREDITS', $options['ext'] . PHP_EOL . $options['author'])) {
        error('Unable to create the CREDITS file');
    }

printf('done%s', PHP_EOL);
}

date_default_timezone_set('UTC');

task('Copying config scripts', 'copy_config_scripts');
task('Copying sources', 'copy_sources');
task('Copying tests', 'copy_tests');

print_success();

${this.title}

Code Editor : ext_skel.php