Progress thread: PHP

[aszenz]

PHP has standardized on composer as it's package manager, would be great to support it here.

[raboof]

It would be useful to have a composer translator and php builder, perhaps taking inspiration from https://github.com/svanderburg/composer2nix

I see the composer.lock file format does have a shasum field, but it seems to be left empty for the composer.lock files that I've seen so far, not sure what's going on there. Some more discussion on the hash input at composer/composer#2540 .

[wmertens]

I sometimes have to touch PHP and I see that there's often a composer dump-autoload step that seems to add extra php files.

Also, some PHP modules seem to use relative imports to get configuration from the main project, or is that rare? So if the vendor dir were a symlink to the nix store, those modules wouldn't work.

Basically, I'm wondering how the vendor dir would best be built.

[aszenz]

Some frameworks also have composer plugins which add their own php files.

Case in point Symfony flex

[wmertens]

So, two modes, one just symlinks a vendor dir (when all components behave), and the other mode copies the entire thing?

[aszenz]

It would be cool if we test this packaging solution against demo repos of popular frameworks like symfony demo:

https://github.com/symfony/demo

Having demo apps working out of the box would be a great DX for nix usage in php ecosystem

[aszenz]

It is also a good way to document how to build php apps which depend on nodejs/webpack for their front-end using dream2nix since it supports building packages for multiple ecosystems.

[DavHau]

It would be cool if we test this packaging solution against demo repos of popular frameworks like symfony demo:

See dream2nix indexers feature: https://nix-community.github.io/dream2nix/intro/indexers.html
Example under: /examples/_d2n-indexer

We could implement a PHP indexer to produce a list of the X most well known php github projects etc. Alternatively there already exists an ecosystem agnostic indexer libraries-io which queries libraries.io.

Apart from that all subsystems in dream2nix should provide a usage example under /example. So we could put the first example there.

[tinybeachthor]

• add meta to packages
  • like feat: add metadata extraction for nodejs and rust #294
• php versions
  • right now it's just php 8.1 from nixpkgs or abort if incompatible
  • get all stable php versions from https://github.com/fossar/nix-phps
• override package version
  • usually packages don't have version field in composer.json resulting in package names like name-unknown
  • add a subsystem attribute to allow setting the version field
  • this will also come handy in the packagist translator
• indexer -> nix-community
  • move https://github.com/tinybeachthor/dream2nix-php-auto to nix-community
  • run a hercules-ci builder to eval how many translated packages build
• package overrides
  • there are still packages that don't translate or build because of minor issues
  • bug hunting and adding overrides
• php + nodejs integration
  • many repos use php & nodejs
  • add an example of build
  • verify that nameclashes don't cause issues
  • add to docs?
• php subsystem docs - remove experimental notice