[PATCH 4 of 5 lfs-v2] revlog: REVIDX_ISLARGEFILE flag

Gregory Szorc gregory.szorc at gmail.com
Tue Nov 22 14:48:00 EST 2016


On Tue, Nov 22, 2016 at 9:56 AM, Remi Chaintron <remi at fb.com> wrote:

> # HG changeset patch
> # User Remi Chaintron <remi at fb.com>
> # Date 1479829452 0
> #      Tue Nov 22 15:44:12 2016 +0000
> # Branch stable
> # Node ID 02ae3995e54d3e38e059224f4e56b998735b5be2
> # Parent  66391d01bb92ff5f1d14033c00389214f78f25cc
> revlog: REVIDX_ISLARGEFILE flag
>
> Add the REVIDX_ISLARGEFILE flag for the `lfs` extension to interact with
> revisions by registering transforms in the flagprocessor.
>
> diff --git a/mercurial/revlog.py b/mercurial/revlog.py
> --- a/mercurial/revlog.py
> +++ b/mercurial/revlog.py
> @@ -54,11 +54,13 @@
>
>  # revlog index flags
>  REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be
> verified
> +REVIDX_ISLARGEFILE = (1 << 14)
>

This needs documented in mercurial/help/internals/revlogs.txt.

(I haven't looked at the rest of the series in much detail.)


>  REVIDX_DEFAULT_FLAGS = 0
> -REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED
> +REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED | REVIDX_ISLARGEFILE
>  # stable order in which flags need to be processed by the flagprocessor
>  REVIDX_FLAGS_PROCESSING_ORDER = [
>      REVIDX_ISCENSORED,
> +    REVIDX_ISLARGEFILE,
>  ]
>
>  # max size of revlog with inline data
> @@ -1773,6 +1775,10 @@
>          """Check if a file revision is censored."""
>          return False
>
> +    def islargefile(self, rev):
> +        """Check if a file revision is flagged as large."""
> +        return self.flags(rev) & REVIDX_ISLARGEFILE
> +
>      def _peek_iscensored(self, baserev, delta, flush):
>          """Quickly check if a delta produces a censored revision."""
>          return False
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