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Re: [alpine-devel] apk-tools idea: binding to other applications and languages

From: Timo Teräs <>
Date: Tue, 02 Mar 2010 11:44:30 +0200

Natanael Copa wrote:
> Som things I have been thinking of for some time.
> It would be nice to make apk-tools functions available from other
> applications and higher level languages. The immedeate need I have is
> a binding to the version compare functions from lua. In the longer run
> it would be nice to be able to make a gui installer and have a nice
> gui progress bar while installing. The point is that we will sooner or
> later need to bind to apk from other applications.
> We have some alternatives:
> 1. we can make a dynamic and have the apk application link
> to it and have the lua to link to it too. Less dupe of code.
> 2. we can dup the code. A build target uses same code but builds a lua
> or similar.
> 3. we can have lua library fork/exec the current apk and parse the
> output. I don't like this, specially not for sorting scripts that
> needs compare version strings.
> When it comes to the initramfs installer, we already need libcrypto,
> libz, libc and openssl (for encrypted apkovls) in the initramfs image
> so adding another lib doesnt really matter. (we could make an initapk
> tool which links libc and libapk statically but libcrypt and libc
> dynamic)

From size point of view, option 1 is best. Though, currently apk
library will not be that large so option 2 is ok too. Option 3 is
not a good idea from performance point of view.

However 1&2 do require that we start to maintain some sort of
stable API. At least for the high level stuff the lua code wants
to do.

But sounds good to me.

- Timo

Received on Tue Mar 02 2010 - 11:44:30 UTC