Re: [PATCH] Prototype register-path

[Caleb Ristvedt]

I think I may have accidentally left some stuff out of that patch due to
being new to "git format-patch" - I did several fixups which I'm not
sure were included. Anyway, I've changed it so that register-path now
honors the NIX_* environment variables that are relevant to it, which
means it now passes "make check TESTS=tests/store.scm". Still quite a
bit more to do, mainly resetting timestamps/permissions and
deduplication.

I'm especially pleased with how the interaction between environment
variables, parameters, and defaults is now a straightforward priority
list using a cond. Said interactions were spread out across the C++
codebase using global variables (well, one global variable) and lots of
state-changing, so I feel pretty good about getting that in one place.

A question about protocol, though - should followup patches like this be
replies or new top-level posts? And how often should I send them?

Again, comments welcome.

0001-Implement-prototype-register-path-in-scheme.patch
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0002-fixup-Implement-prototype-register-path-in-scheme.patch
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0003-fixup-Implement-prototype-register-path-in-scheme.patch
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0004-fixup-Implement-prototype-register-path-in-scheme.patch
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0005-fixup-Implement-prototype-register-path-in-scheme.patch
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0006-Honor-environment-variables-in-guix-register.patch
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0007-fixup-Honor-environment-variables-in-guix-register.patch
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