On 2/10/2012 10:14 AM, Lionel Dricot wrote:
1) Indexing consume too much memory, making it impossible to use on less
than high-end server.

If a project is going to be large enough that indexing memory is a serious issue, then I suspect that people already have beefy machines for building it. I'm not saying it's a useful goal; I'm just saying that it probably won't drive off developers.

2) DXR is too tight to mozilla-central
As a rule of thumb, if it's something specific to Mozilla, it should be able to be placed in a customizable "plugin" of some kind.

3) Indexing is currently too slow (is it really a problem?)
4) DXR is hard to install and to use.
5) I still don't have a clear picture on how to use one DXR instance with 
multiple repositories

This, IMHO, is the largest issue I would like to see fixed. At the very least, the ability to have multiple trees in a single $DXR_ROOT install and have it work nicely is necessary; even more feature-ific would be to be able to share some index data cross-refs between different trees.

For 4), Carlos think that DXR should use autotools (or, I would say,
python-distutils). That would allow easy installation and, even more,
distribution packages. We should also make some clear shell commands :
index, deploy. Even a small PyGTK gui might be done quickly. Anyway, lot
of opportunity there.

The main problem that keeps an indexer from being easily packageable is the fact that you have to do custom steps to compile the target source code anyways; this is what would make producing a, say, Debian dxr package difficult. Another option could be to do something like what bugzilla does: give a web-configurable administration page (which can be locked down, of course) to avoid ever having to physically see the command line.
So, what are, in your opinion, the priorities of DXR as an OpenSource
project? Should we try to make a roadmap?

Another issue I recall from when I discussed this at the LLVM developer's meeting was the "#ifdef issue": how do you handle the fact that, after preprocessing, not all the original source code gets "seen" by the compiler? The mental model I've had for a long time is to somehow be able to merge the records of two different compile runs into a single indexing output.
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