[PATCH 1 of 3] log: use an exact matcher for --patch --follow

[Siddharth Agarwal]

On 07/12/2014 06:41 PM, Siddharth Agarwal wrote:
> # HG changeset patch
> # User Siddharth Agarwal <sid0 at fb.com>
> # Date 1405215078 25200
> #      Sat Jul 12 18:31:18 2014 -0700
> # Node ID 6ba1d8cf21e5dfc86c05b9eb856d99831eeb720b
> # Parent  0541680b3ed0f7068efcd2baa7696d2d07740605
> log: use an exact matcher for --patch --follow

These patches are logically independent of, but I wrote them on top of, 
my earlier patch "log: make --patch --follow work inside a subdirectory".

>
> The arguments to log --patch --follow are expected to be exact paths.
>
> This will be used to make manifest filtering for these cases more efficient in
> upcoming patches.
>
> diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
> --- a/mercurial/cmdutil.py
> +++ b/mercurial/cmdutil.py
> @@ -1499,7 +1499,6 @@
>       fcache = {}
>       fcacheready = [False]
>       pctx = repo['.']
> -    wctx = repo[None]
>   
>       def populate():
>           for fn in files:
> @@ -1512,7 +1511,7 @@
>               # Lazy initialization
>               fcacheready[0] = True
>               populate()
> -        return scmutil.match(wctx, fcache.get(rev, []), default='path')
> +        return scmutil.matchfiles(repo, fcache.get(rev, []))
>   
>       return filematcher
>   
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