build scripts: Build time deps vs runtime deps

[edannenberg]

build scripts: Build time deps vs runtime deps

[edannenberg]

Technically you could already accomplish this via the configure_rootfs_build() hook, it would require jumping through some hoops though, as at this point bob is already configured for building the rootfs.tar file.

• add another hook configure_bob() before configure_rootfs_build()
• change make.conf handling a bit, probably better to simply pass ROOT via env and remove it from make.conf so we don't have to maintain 2 copies (installing to bob/custom root)

[jbergstroem]

I think this somewhat ties into DEPENDs in ebuilds. Since most DEPEND still rely on RDEPEND, there's a bit of skew in here. For instance, if I wanted to build nodejs, I'd pull openssl which in turn would have a slew of build dependencies, but not runtime dependencies (debianutils, coreutils, ...).

I don't know how far off we'd like to stray from gentoo, but from an openssl consumption perspective the leftovers of building it should go away.

Should each Buildconfig have a stricter cleanup phase?

[edannenberg]

If I understand you correctly, yea it has to be done on a per image basis in the finish_rootfs_build() hook.

I don't know how far off we'd like to stray from gentoo, but from an openssl consumption perspective the leftovers of building it should go away.

Ideally i'd like to keep images as maintainable as possible, what do you have in mind?

[jbergstroem]

I think we shouldn't do too much for now. It's up to anyone building their own docker image to decide what's needed and what's not.

Edit: I think being able to control the install part could be beneficial. Say for instance I have a USE="static" emerge dev-libs/nodejs ebuild, which pulls openssl or whatever dep. Tricking emerge not to install any of the deps would be nice since I'd optimally just copy the built binary over. How about not finishing the full emerge process (think ebuild compile or similar)?

[jbergstroem]

Lets close this :) Most of the interesting parts were landed with bob-core.