image-optimizer
This library is handy and very easy to use optimizer for image files. It uses optipng, pngquant, jpegoptim, svgo and few more libraries,
so before use it you should install proper libraries on your server. Project contains Vagrantfile that defines testing
virtual machine with all libraries installed, so you can check Vagrantfile how to install all those stuff.
Thanks to ImageOptimizer and libraries that it uses, your image files can be 10%-70% smaller.
Installation
Using composer:
composer require ps/image-optimizer
Basic usage
$factory = new ImageOptimizerOptimizerFactory(); $optimizer = $factory->get(); $filepath = /* path to image */; $optimizer->optimize($filepath); //optimized file overwrites original one
Configuration
By default optimizer does not throw any exception, if file can not be optimized or optimizing library for given file is
not installed, optimizer will not touch original file. This behaviour is ok when you want to eventually optimize files
uploaded by user. When in your use case optimization fault should cause exception, ignore_errors
option was created
especially for you.
This library is very smart, you do not have to configure paths to all binaries of libraries that are used by ImageOptimizer,
library will be looking for those binaries in few places, so if binaries are placed in standard places, it will be found
automatically.
Supported options:
-
ignore_errors
(default: true) -
single_optimizer_timeout_in_seconds
(default: 60) – useful when you
want to have control how long optimizing lasts. For example in some
cases optimizing may not be worth when it takes big amount of time.
Passnull
in order to turn off timeout. -
output_filepath_pattern
(default:%basename%/%filename%%ext%
) –
destination where optimized file will be stored. By default it
overrides original file. There are 3 placehoders:%basename%
,
%filename%
(without extension and dot) and%ext%
(extension with
dot) which will be replaced by values from original file. -
execute_only_first_png_optimizer
(default: true) – execute the first
successful or allpng
optimizers -
execute_only_first_jpeg_optimizer
(default: true) – execute the first successful or alljpeg
optimizers -
optipng_options
(default:array('-i0', '-o2', '-quiet')
) – an array of arguments to pass to the library -
pngquant_options
(default:array('--force')
) -
pngcrush_options
(default:array('-reduce', '-q', '-ow')
) -
pngout_options
(default:array('-s3', '-q', '-y')
) -
advpng_options
(default:array('-z', '-4', '-q')
) -
gifsicle_options
(default:array('-b', '-O5')
) -
jpegoptim_options
(default:array('--strip-all', '--all-progressive')
) -
jpegtran_options
(default:array('-optimize', '-progressive')
) -
svgo_options
(default:array('--disable=cleanupIDs')
) -
custom_optimizers
(defaultarray()
) -
optipng_bin
(default: will be guessed) – you can enforce paths to binaries, but by default it will be guessed -
pngquant_bin
-
pngcrush_bin
-
pngout_bin
-
advpng_bin
-
gifsicle_bin
-
jpegoptim_bin
-
jpegtran_bin
-
svgo_bin
You can pass array of options as first argument of ImageOptimizerOptimizerFactory
constructor. Second argument is
optionally PsrLoggerInterface
.
$factory = new ImageOptimizerOptimizerFactory(array('ignore_errors' => false), $logger);
Supported optimizers
-
default (
smart
) – it guess file type and choose optimizer for this file type -
png
– chain of optimizers for png files, by default it usespngquant
andoptipng
.pngquant
is lossy optimization -
jpg
– first of two optimizations will be executed:jpegtran
orjpegoptim
-
gif
– alias togifsicle
-
pngquant
– homepage -
optipng
– homepage -
pngcrush
– homepage -
pngout
– homepage -
advpng
– homepage -
jpegtran
– homepage -
jpegoptim
– homepage -
gifsicle
– homepage -
svgo
– homepage
You can obtain concrete optimizer by passing his name to ImageOptimizerOptimizerFactory
::get
method:
//default optimizer is `smart` $optimizer = $factory->get(); //png optimizer $pngOptimizer = $factory->get('png'); //jpegoptim optimizer etc. $jpgOptimizer = $factory->get('jpegoptim');
Custom optimizers
You can easily define custom optimizers:
$factory = new ImageOptimizerOptimizerFactory(array('custom_optimizers' => array( 'some_optimizier' => array( 'command' => 'some_command', 'args' => array('-some-flag') ) )), $logger);
And then usage:
$customOptimizer = $factory->get('some_optimizier');
I got “All optimizers failed to optimize the file”
Probably you don’t have required optimazers installed. Let’s have a look
at Vagrantfile
file in order to see an example how to install those
commands.
In order to see all intermediate errors, you can use logger (be default
NullLogger
is used, so logs are not available):
class StdoutLogger extends PsrLogAbstractLogger { public function log($level, $message, array $context = array()) { echo $message."n"; } } $factory = new ImageOptimizerOptimizerFactory(array(), new StdoutLogger()); $factory->get()->optimize('yourfile.jpg'); // and have a look at stdout
License
MIT