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Re: [RFC] grub-install C rewrite

From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: [RFC] grub-install C rewrite
Date: Sun, 06 Oct 2013 16:54:08 +0200
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On 26.09.2013 15:08, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Hello, all. Recently I made some order in hostdisk.c and getroot.c
> involving splitting in OS-specific parts.
> In the same time I added WinAPI version of getroot/hostdisk allowing
> grub-probe to work on windows natively
> Also on-going is AROS-specific parts.
> Windows and AROS are not friendly with bash.
> The attempt to make both multiple files of same type work and handling
> whitespaces/newlines/... in filenames would result in very ugly code
> with loads of evals.
> Current code may have subtle assumptions on behaviour of common tools
> like sed and on locale (E.g. "[a-z]" doesn't cover u if locale is Estonian).
> So to check viability I rewrote grub-install in C. This is mostly proof
> of concept with loads of FIXMEs but I could boot i386-pc install made
> with it. In many aspects (static variables, some tests, general
> structure) it's reminiscent of sh version of grub-install it's based on.
> Some functionality is likely to stay OS-specific, e.g. executing
> compressors or determining firmware.
Attached is the second iteration of this patch. Now the biggest problem
is in reading /etc/default/grub and getting GRUB_DISTRIBUTOR and
GRUB_ENABLE_CRYPTODISK. Trouble is that now this file is simply included
in bash script and e.g. Debian uses it to determine GRUB_DISTRIBUTOR
based on lsb_release output. Does anyone have an elegant solution for this?

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