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From: Stefan Beller <sbeller@google.com>
To: Phillip Wood <phillip.wood@dunelm.org.uk>
Cc: git <git@vger.kernel.org>
Subject: Re: [PATCH v1 9/9] diff --color-moved-ws: handle blank lines
Date: Tue, 20 Nov 2018 10:05:29 -0800	[thread overview]
Message-ID: <CAGZ79kYm-uNWi-3=0fG=PfA3HbT7tKwER=r8fm6UFiy3P=JEmA@mail.gmail.com> (raw)
In-Reply-To: <20181116110356.12311-10-phillip.wood@talktalk.net>

On Fri, Nov 16, 2018 at 3:04 AM Phillip Wood <phillip.wood@talktalk.net> wrote:
>
> From: Phillip Wood <phillip.wood@dunelm.org.uk>
>
> When using --color-moved-ws=allow-indentation-change allow lines with
> the same indentation change to be grouped across blank lines. For now
> this only works if the blank lines have been moved as well, not for
> blocks that have just had their indentation changed.
>
> This completes the changes to the implementation of
> --color-moved=allow-indentation-change. Running
>
>   git diff --color-moved=allow-indentation-change v2.18.0 v2.19.0
>
> now takes 5.0s. This is a saving of 41% from 8.5s for the optimized
> version of the previous implementation and 66% from the original which
> took 14.6s.
>
> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
> ---
>
> Notes:
>     Changes since rfc:
>      - Split these changes into a separate commit.
>      - Detect blank lines when processing the indentation rather than
>        parsing each line twice.
>      - Tweaked the test to make it harder as suggested by Stefan.
>      - Added timing data to the commit message.
>
>  diff.c                     | 34 ++++++++++++++++++++++++++++---
>  t/t4015-diff-whitespace.sh | 41 ++++++++++++++++++++++++++++++++++----
>  2 files changed, 68 insertions(+), 7 deletions(-)
>
> diff --git a/diff.c b/diff.c
> index 89559293e7..072b5bced6 100644
> --- a/diff.c
> +++ b/diff.c
> @@ -792,9 +792,11 @@ static void moved_block_clear(struct moved_block *b)
>         memset(b, 0, sizeof(*b));
>  }
>
> +#define INDENT_BLANKLINE INT_MIN

Answering my question from the previous patch:
This is why we need to keep the indents signed.

This patch looks quite nice to read along.

The whole series looks good to me.
Do we need to update the docs in any way?

Thanks,
Stefan

  reply	other threads:[~2018-11-20 18:05 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-24 10:06 [RFC PATCH 0/3] diff --color-moved-ws: allow mixed spaces and tabs in indentation change Phillip Wood
2018-09-24 10:06 ` [RFC PATCH 1/3] xdiff-interface: make xdl_blankline() available Phillip Wood
2018-09-24 23:19   ` Stefan Beller
2018-09-24 10:06 ` [RFC PATCH 2/3] diff.c: remove unused variables Phillip Wood
2018-09-24 10:06 ` [RFC PATCH 3/3] diff: add --color-moved-ws=allow-mixed-indentation-change Phillip Wood
2018-09-25  1:07   ` Stefan Beller
2018-10-09  9:50     ` Phillip Wood
2018-10-09 21:10       ` Stefan Beller
2018-10-10 15:26         ` Phillip Wood
2018-10-10 18:05           ` Stefan Beller
2018-09-24 11:03 ` [RFC PATCH 0/3] diff --color-moved-ws: allow mixed spaces and tabs in indentation change Phillip Wood
2018-11-16 11:03 ` [PATCH v1 0/9] diff --color-moved-ws fixes and enhancment Phillip Wood
2018-11-16 11:03   ` [PATCH v1 1/9] diff: document --no-color-moved Phillip Wood
2018-11-16 11:03   ` [PATCH v1 2/9] diff: use whitespace consistently Phillip Wood
2018-11-16 18:29     ` Stefan Beller
2018-11-16 11:03   ` [PATCH v1 3/9] diff: allow --no-color-moved-ws Phillip Wood
2018-11-16 11:03   ` [PATCH v1 4/9] diff --color-moved-ws: demonstrate false positives Phillip Wood
2018-11-16 11:03   ` [PATCH v1 5/9] diff --color-moved-ws: fix " Phillip Wood
2018-11-16 11:03   ` [PATCH v1 6/9] diff --color-moved=zebra: be stricter with color alternation Phillip Wood
2018-11-16 11:03   ` [PATCH v1 7/9] diff --color-moved-ws: optimize allow-indentation-change Phillip Wood
2018-11-16 20:40     ` Stefan Beller
2018-11-17 14:52       ` Phillip Wood
2018-11-16 11:03   ` [PATCH v1 8/9] diff --color-moved-ws: modify allow-indentation-change Phillip Wood
2018-11-16 21:47     ` Stefan Beller
2018-11-17 14:59       ` Phillip Wood
2018-11-16 11:03   ` [PATCH v1 9/9] diff --color-moved-ws: handle blank lines Phillip Wood
2018-11-20 18:05     ` Stefan Beller [this message]
2018-11-21 15:49       ` Phillip Wood
2018-11-23 11:16 ` [PATCH v2 0/9] diff --color-moved-ws fixes and enhancment Phillip Wood
2018-11-23 11:16   ` [PATCH v2 1/9] diff: document --no-color-moved Phillip Wood
2018-11-23 11:16   ` [PATCH v2 2/9] Use "whitespace" consistently Phillip Wood
2018-11-23 11:16   ` [PATCH v2 3/9] diff: allow --no-color-moved-ws Phillip Wood
2018-11-23 11:16   ` [PATCH v2 4/9] diff --color-moved-ws: demonstrate false positives Phillip Wood
2018-11-23 11:16   ` [PATCH v2 5/9] diff --color-moved-ws: fix " Phillip Wood
2018-11-23 11:16   ` [PATCH v2 6/9] diff --color-moved=zebra: be stricter with color alternation Phillip Wood
2018-11-23 11:16   ` [PATCH v2 7/9] diff --color-moved-ws: optimize allow-indentation-change Phillip Wood
2018-11-23 11:16   ` [PATCH v2 8/9] diff --color-moved-ws: modify allow-indentation-change Phillip Wood
2018-11-23 11:16   ` [PATCH v2 9/9] diff --color-moved-ws: handle blank lines Phillip Wood
2018-11-26 21:20   ` [PATCH v2 0/9] diff --color-moved-ws fixes and enhancment Stefan Beller
2018-11-27 20:52     ` Phillip Wood
2019-01-08 16:22   ` Phillip Wood
2019-01-08 18:31     ` Junio C Hamano
2019-01-10  0:37       ` Stefan Beller
2019-01-10 18:39         ` Junio C Hamano

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