Add multi arch support
Add multi arch support Architectures are not either A or B but are more like a tree in relation. That is one architecture can contain an other. An easy example here is a package with only shell scripts that should have the architecture 'none', 'all' or something like that while a binary package might have 'amd64'. In this example apk should be able to install packages from both 'none' and 'amd64' architectures. Today apk only support one architecture and has an option for rewriting the architecture upon creating a repo index ( --rewrite-arch ARCH ). This change makes it possible to have one repository for each architecture and then mix different architectures in the same installation. This means: * /etc/apk/arch can no contain a list of architectures supported. * the --arch argument can be specified multiple times to add new architectures to /etc/apk/arch This will make it possible for architectures to share common repository, which will ease maintenance of different architectures as well as improve storage requirements for hosting repos. It will also make it easier to use apk in yocto. The downside is that apk needs to look at at most, number of architectures, places for a package.
index: add argument --no-warn-if-no-providers When creating an index apk warns if a dependency is missing a provider. However when using a multi-arch repository, it's not an error that a certain architecture is missing a dependency because that dependency could be in an other architecture. Since apk index doesn't know about this, add an argument to disable that warning.