[Gnu-arch-users] write-through commit and archive names

[Aaron Bentley]

Hi all,

I've implemented a first pass at write-through commits.  If you try to 
commit to a mirror, it looks for the mirror's source, and tries to 
commit to that instead.  It doesn't attempt to update the mirror.

The brave can find it here:
address@hidden/tlasrc--writethrough--0--patch-1
The only testing it's had is that it has been used to commit itself, and

This is a baby-steps approach, making sure write-through works properly 
for one command, rather than implementing a new type of archive, and 
having to fix everything at once.

Half the work was changing old code to use the official name of the 
archive where appropriate.  Each registered archive has two names, which 
may or may not differ.

Official name: The name of the archive as specified at creation time, 
reflected in =meta-info/name and arch->official_name

Registered name: The name of the archive as specified at registration 
time, reflected in ~/.arch-params/=locations/ and arch->name

Until now, these have been the same for writeable archives, so the 
distinction didn't matter.  But now, it's possible to commit
address@hidden/tlasrc--writethrough--0--patch-1 to 
the archive address@hidden  If there's an 
error, should it be like this:

Cannot write revision 
address@hidden/tlasrc--writethrough--0--patch-1

Or like this:
Cannot write revision 
address@hidden/tlasrc--writethrough--0--patch-1

Or like this:
Cannot write revision 
address@hidden/tlasrc--writethrough--0--patch-1
to archive address@hidden

?

Because often, we only have an archive name and a non-fully-qualified 
revision name to work with, and the third version is pretty clunky in 
the general case, anyhow.

Aaron