Add 'patch' to apk add command (used by composer-patches)

[ineffyble]

Add GNU patch to the image.

This is required by composer-patches, as the version included with Alpine by default doesn't support some command line parameters and fails.

[alcohol]

If you need a custom image, I suggest you look at multi-stage builds.

[ineffyble]

That's fair - it is worth noting this is a breaking change in recent builds of the image.

composer-patches used to work fine with this image, until recent build started pulling in a newer version of git, which broke using git apply for many usecases

So you may have other users becoming confused.

[alcohol]

I do not quite understand how this is a breaking change? composer-patches is not a feature this image provides. It sounds like you are running a custom image that comes with additional plugins. We aim to provide a very minimal image that users can either use for simple one-off commands, or as a trusted source for the binary in multi-stage builds.

[ineffyble]

Huh? No, no custom image. Just a composer.json with the relevant require for the patches plugin.

It's a shame that the recent git upgrade on this image broke the built-in support, as it is a nice minimal image that was working well for us.

[alcohol]

Is this not an issue that should be solved in the composer-patches package/plugin rather?

[Techwolf12]

@alcohol Agreed! cweagans/composer-patches#184

[drupol]

Sadly, it's been months that we are asking for this fix. We will probably be forced to fork the project and do it ourselves.

[alcohol]

If you reopen the PR I'll merge it.

[alcohol]

Never mind, I merged #48 instead. No need to reopen.

[Techwolf12]

@drupol The problem is not in this repo. The problem is in Composer patches. The fix is also in a merge request there.

[alcohol]

Note, this will not go into effect until we tag a new Composer version.

[ineffyble]

Thank you :)