# PHP Autoload Builder

The PHP AutoloadBuilder CLI tool **phpab** is a command line application to automate the process of generating
an autoload require file with the option of creating static require lists as well as phar archives.

## Features

* scan multiple directories recursively in one run, optionally follow symlinks, wildcards or based on composer.json
* Cache scan results
* Template based autoload code
* Custom variables for templates
* Compatibility mode for PHP 5.2 compliant autoloader
* Case sensitive as well as case insensitive classname mapping
* Phar generation, with or without compression and openssl key signing
* Static require list generation
* Opcache warming list generation
* Linting of generated code

## Requirements

* PHP 5.3+ (Runtime, for development / tests: 7.2+)
* Fileinfo (ext/fileinfo)
* Tokenizer (ext/tokenizer)
* For PHAR generation support:
    + ext/phar (write enabled: phar.readonly = Off)
    + ext/gzip (optional)
    + ext/bzip2 (optional)
    + ext/openssl (optional, for phar signing only)

## Installation

### Executable PHAR

The recommended way to install **phpab** is by using [phive](https://phar.io):

```
phive install phpab
```

#### Manual install

If you do not have phive installed or want to install manually, you can download the PHAR archive
from the [Releases](https://github.com/theseer/Autoload/releases) tab.

_Please note:_
On Linux/Unix based system the phar needs to be marked executable for direct execution:
```
[theseer@rikka ~]$ chmod +x phpab*.phar
```

## Other Downloads

* [Latest development snapshot](https://github.com/theseer/Autoload/archive/master.zip)</a> (ZIP Archive)
* [Releases (Source)](https://github.com/theseer/Autoload/tags)

## Usage
```
Usage: phpab [switches] <directory1|file1|/path/to/composer.json> [...<directoryN|fileN>]

  -i, --include       File pattern to include (default: *.php)
  -e, --exclude       File pattern to exclude

      --blacklist     Blacklist classname or namespace (wildcards supported)
      --whitelist     Whitelist classname or namespace (wildcards supported)

  -b, --basedir       Basedir for filepaths
  -t, --template      Path to code template to use

  -o, --output        Output file for generated code (default: STDOUT)
  
  -p, --phar          Create a phar archive (requires -o )
      --all           Include all files in given directory when creating a phar
      --alias         Specify explicit internal phar alias filename (default: output filename)
      --hash          Force given hash algorithm (SHA-1, SHA-256 or SHA-512) (requires -p, conflicts with --key)
      --bzip2         Compress phar archive using bzip2 (requires -p) (bzip2 required)
      --gzip          Compress phar archive using gzip (requires -p) (gzip required)
      --key           OpenSSL key file to use for signing phar archive (requires -p) (openssl required)

  -c, --compat        Generate PHP 5.2 compatible code
  -s, --static        Generate a static require file
  
  -w, --warm          Generate a static opcache warming file
      --reset         Add opcache reset call when generating opcache warming file

  -1, --prepend       Register as first autoloader (prepend to stack, default: append)
  -d, --no-exception  Do not throw exception on registration problem (default: throw exception)

  -n, --nolower       Do not lowercase classnames for case insensitivity

  -q, --quiet         Quiet mode, do not output any processing errors or information

      --cache <file>  Enable caching and set filename to use for cache storage

      --follow        Enables following symbolic links (not compatible with phar mode)
      --format        Dateformat string for timestamp
      --linebreak     Linebreak style (CR, CRLF or LF, default: LF)
      --indent        String used for indenting or number of spaces (default: 16 (compat 12) spaces)

      --tolerant      Ignore Class Redeclarations in the same file
      --once          Use require_once instead of require when creating a static require file

      --trusting      Do not check mimetype of files prior to parsing (default)
      --paranoid      Do check mimetype of files prior to parsing

      --var name=foo  Assign value 'foo' to variable 'name' to be used in (custom) templates

      --lint          Run lint on generated code and exit
      --lint-php      PHP binary to use for linting (default: /usr/bin/php or c:\php\php.exe)

  -h, --help          Prints this usage information
  -v, --version       Prints the version and exits
```

### Usage Examples

    [theseer@rikka ~]$ phpab -o src/autoload.php -b src composer.json

    [theseer@rikka ~]$ phpab -o opcache_warming.php -w --reset src

    [theseer@rikka ~]$ phpab -o src/autoload.inc.php src

    [theseer@rikka ~]$ phpab -c -o src/autoload.inc.php src

    [theseer@rikka ~]$ phpab -o src/core/autoload.inc.php -b src src

    [theseer@rikka ~]$ phpab -p -o framework.phar -b src composer.json

    [theseer@rikka ~]$ phpab -p -o framework.phar framework/src

    [theseer@rikka ~]$ phpab -p -o framework.phar --bzip2 --key sign.key framework/src

    [theseer@rikka ~]$ phpab -b . --tolerant -o zf1_autoload.php -e '*/Test/*' Zend
    

### Automation

When using *phpab* it is necessary to recreate the autoload file every time a new class is created.
This usually also happens after pulling from a repo or when switchting branches.
Using a git `post-checkout` hook placed in `.git/hooks/post-update` this can be automated for most cases.

#### Basic Sample:

```bash
#!/bin/bash
phpab -c -o src/autoload.inc.php src
```

#### Sample using an `ant build.xml` file.

```bash
#!/bin/bash
if [ -f build.xml ]; then
    ant -p | grep phpab > /dev/null

    if [ $? -eq 0 ]; then
        ant phpab > /dev/null &
    fi
fi
```

## Template Variables

The generated code is based uppon templates provided by default in the templates subfolder. The template engine
allows for simply replacing of name based placeholders. For now, only a few default variables are defined
but API hooks / CLI parameters exist to set custom variables.

Known variables are:
* ```___CREATED___```     Set to a timestamp of creation, format can be adjusted
* ```___CLASSLIST___```   The found list classes in form of a generated map
* ```___BASEDIR___```     If a Basedir is set, the value will get removed from the file path and get replaced by __DIR__

Used in PHAR Mode only:
* ```___PHAR___```         The filename of the generated phar or it's alias when --alias is given (see src/templates/phar.php.tpl)

Custom variables as defined by passing --var name=value via cli are accessed by pre- and appending ___ to it:
* ```___name___```         Going to be replaced by the value provided via cli param

## Changelog

The [changelog](https://github.com/theseer/Autoload/blob/master/CHANGELOG.md) moved to its own document
