Smarty5: installation without composer

[lifecom]

Is there any way for installation Smarty 5 without composer?

[scottchiefbaker]

With Smarty v4.x there definitely was a way. Checking the docs and the source for v5.x it's not as clear. I would very interested in not using composer as well. If this gets figured out we should update the docs with this info.

[wisskid]

This was discussed here Does this solve your problem?

[scottchiefbaker]

That's pretty nebulous... I'd really like to see "official" documentation on how to do this. I'm not a huge fan of composer.

[wisskid]

Okay. Every (well, almost every, I guess) composer.json file has this section called "autoload".

For Smarty it currently reads:

"autoload": {
        "psr-4" : {
            "Smarty\\" : "src/"
        },
        "files": [
            "src/functions.php"
        ]
    },

So, register a PSR-4 autoloader for the Smarty namespace that reads from the src folder and include src/functions.php once.

That should do it.

[scottchiefbaker]

For Smarty 4.x my instantiation is:

require("include/smarty/libs/Smarty.class.php");
$smarty = new Smarty();

I've been doing it that way for 8+ years on Smarty 3.x and 4.x. I'd like to do something similar with Smarty 5.x.

require("smarty-5.0.2/src/functions.php");

use Smarty\Smarty;
$smarty = new Smarty();

I get Fatal error: Uncaught Error: Class "Smarty\Smarty" not found in... What am I doing wrong? I'm not familiar with PSR-4 autoloaders.

[scottchiefbaker]

FWIW I'm 100% willing to write up some documentation and submit a PR for how load Smarty without composer once I get it working. Clearly there are other people that desire this functionality as well. It would be good to have it in the official documentation.

[wisskid]

I asked ChatGPT to write it, seems like this might work:

spl_autoload_register(function ($class) {
    // Namespace prefix
    $prefix = 'Smarty\\';

    // Base directory for the namespace prefix
    $baseDir = __DIR__ . '/a/b/src/';

    // Does the class use the namespace prefix?
    $len = strlen($prefix);
    if (strncmp($prefix, $class, $len) !== 0) {
        // If not, move to the next registered autoloader
        return;
    }

    // Get the relative class name
    $relativeClass = substr($class, $len);

    // Replace namespace prefix with base directory, replace namespace separators with directory separators, and append .php
    $file = $baseDir . str_replace('\\', '/', $relativeClass) . '.php';

    // If the file exists, require it
    if (file_exists($file)) {
        require $file;
    }
});

If not, just run composer require smarty/smarty && composer dump-autoload and see what's in vendor/autoload.php

[lifecom]

You don’t necessarily need Composer

[wblessen]

FWIW I'm 100% willing to write up some documentation and submit a PR for how load Smarty without composer once I get it working. Clearly there are other people that desire this functionality as well. It would be good to have it in the official documentation.

I am happy with Composer., it makes my life much easier. Writing autoloaders with public constants is long long time ago, I dont miss that

Using Composer, put everything with PSR-4 together and thats it.

Without composer, the day, someone in Smarty decides to load another library with composer you are done.

So I am just curious, why you dont use it?

[scottchiefbaker]

@wblessen my application is very simple. I haven't needed the complexity of composer for any projects yet. Smarty used to be able to be loaded without composer. I'm just trying to keep things simple.

[scottchiefbaker]

I reworked some of the above and came up with the following load_smarty.php file that does most of what composer does.

define('SMARTY_DIR', "/home/username/html/include/smarty/src/");

spl_autoload_register(function ($class) {
    // Class prefix
    $prefix = 'Smarty\\';

    // If we are not a member of above class skip
    if (!str_starts_with($class, $prefix)) { return; }

    // Hack off the prefix part
    $relative_class = substr($class, strlen($prefix));

    // Build a path to the include file
    $file = SMARTY_DIR . str_replace('\\', '/', $relative_class) . '.php';

    // If the file exists, require it
    if (file_exists($file))  { require_once($file); }
});

Then in another script I have

require_once("load_smarty.php");

// Instantiate the class
$obj = new Smarty\Smarty();

I need to do some more testing, but this appears to work.

[wisskid]

Don't forget src/functions.php!

[scottchiefbaker]

Oh good call... I wrote up my implementation and submitted a PR to allow using Smarty without Composer.

[juangacovas]

Thanks Scott, I was also looking for this when we try to migrate to v5 soon.

On Tue, May 14, 2024 at 9:18 PM Scott Baker @.***> wrote:

Oh good call... I wrote up my implementation and submitted a PR to allow using Smarty without Composer.

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[jasonnug]

I haven't needed composer yet for my projects so I was looking for this. Thanks.

[emaeba]

It worked without composer. thank you. I think Smarty needs an option without Composer.