Re: [RFC PATCH 0/5] line-log: towards a more responsive, incremental 'git log -L'

> Line-level log performs a preprocessing step in
> prepare_revision_walk(), during which it filters and rewrites history
> to keep only commits modifying the given line range.  This
> preprocessing causes significant delay before the first commit is
> shown, wastes CPU time when the user asks only for a few commits, and
> does parent rewriting with no way to turn it off.
> 
> This patch series addresses these issues by integrating line-level log
> filtering into the revision walking machinery and making it work
> together with generation number-based topo-ordering (though for now
> only in the case when the user doesn't explicitly asks for parent
> rewriting, which is probably the common case).
> 
> The first two patches are quite straightforward (and arguably somewhat
> unrelated), but the rest deals with history traversal and parent
> rewriting, which I don't usually do, hence the RFC.
> 
> 
> SZEDER Gábor (5):
>   completion: offer '--(no-)patch' among 'git log' options
>   line-log: remove unused fields from 'struct line_log_data'
>   t4211-line-log: add tests for parent oids
>   line-log: more responsive, incremental 'git log -L'
>   line-log: try to use generation number-based topo-ordering