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From: Junio C Hamano <gitster@pobox•com>
To: tboegi@web•de
Cc: git@vger•kernel.org
Subject: Re: [PATCH v2 6/7] correct blame for files commited with CRLF
Date: Fri, 01 Apr 2016 15:29:32 -0700	[thread overview]
Message-ID: <xmqq60w1gdyr.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <1459526911-19985-1-git-send-email-tboegi@web.de> (tboegi@web.de's message of "Fri, 1 Apr 2016 18:08:31 +0200")

tboegi@web•de writes:

> Whenever a CLRF conversion is needed (or any filter us set), load the
> index temporally, before calling convert_to_git()

I am not sure if this is needed.  We should just do read_cache()
unconditionally at the beginning of fake_working_tree_commit(),
without even discarding it.  Most Git commands that work on the
working tree files follow that pattern, and I do not think the
"optimization" this patch does over that simple pattern, while it
may be nice, is an unnecessary complication.

By the way, thanks for pushing back in the [v1 6/7] discussion
thread to show me where convert_to_git() was failing.

> Signed-off-by: Torsten Bögershausen <tboegi@web•de>
> ---
>  builtin/blame.c               |  6 +++++-
>  convert.c                     | 10 ++++++++++
>  convert.h                     |  1 +
>  t/t8003-blame-corner-cases.sh | 14 ++++++++++++++
>  4 files changed, 30 insertions(+), 1 deletion(-)
>
> diff --git a/builtin/blame.c b/builtin/blame.c
> index e982fb8..a219068 100644
> --- a/builtin/blame.c
> +++ b/builtin/blame.c
> @@ -2376,7 +2376,11 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
>  		if (strbuf_read(&buf, 0, 0) < 0)
>  			die_errno("failed to read from stdin");
>  	}
> -	convert_to_git(path, buf.buf, buf.len, &buf, 0);
> +	if (convert_needs_conversion(path)) {
> +		read_cache();
> +		convert_to_git(path, buf.buf, buf.len, &buf, 0);
> +		discard_cache();
> +	}
>  	origin->file.ptr = buf.buf;
>  	origin->file.size = buf.len;
>  	pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
> diff --git a/convert.c b/convert.c
> index 4ed5d89..02c50da 100644
> --- a/convert.c
> +++ b/convert.c
> @@ -903,6 +903,16 @@ const char *get_convert_attr_ascii(const char *path)
>  	return "";
>  }
>  
> +int convert_needs_conversion(const char *path)
> +{
> +	struct conv_attrs ca;
> +
> +	convert_attrs(&ca, path);
> +	if (ca.drv || ca.ident || ca.crlf_action != CRLF_BINARY)
> +		return 1;
> +	return 0;
> +}
> +
>  int convert_to_git(const char *path, const char *src, size_t len,
>                     struct strbuf *dst, enum safe_crlf checksafe)
>  {
> diff --git a/convert.h b/convert.h
> index ccf436b..ffd9c32 100644
> --- a/convert.h
> +++ b/convert.h
> @@ -35,6 +35,7 @@ extern enum eol core_eol;
>  extern const char *get_cached_convert_stats_ascii(const char *path);
>  extern const char *get_wt_convert_stats_ascii(const char *path);
>  extern const char *get_convert_attr_ascii(const char *path);
> +int convert_needs_conversion(const char *path);
>  
>  /* returns 1 if *dst was used */
>  extern int convert_to_git(const char *path, const char *src, size_t len,
> diff --git a/t/t8003-blame-corner-cases.sh b/t/t8003-blame-corner-cases.sh
> index 6568429..a9b266f 100755
> --- a/t/t8003-blame-corner-cases.sh
> +++ b/t/t8003-blame-corner-cases.sh
> @@ -212,4 +212,18 @@ test_expect_success 'blame file with CRLF attributes text' '
>  	grep "A U Thor" actual
>  '
>  
> +test_expect_success 'blame file with CRLF core.autocrlf=true' '
> +	git config core.autocrlf false &&
> +	printf "testcase\r\n" >crlfinrepo &&
> +	>.gitattributes &&
> +	git add crlfinrepo &&
> +	git commit -m "add crlfinrepo" &&
> +	git config core.autocrlf true &&
> +	mv crlfinrepo tmp &&
> +	git checkout crlfinrepo &&
> +	rm tmp &&
> +	git blame crlfinrepo >actual &&
> +	grep "A U Thor" actual
> +'
> +
>  test_done

  reply	other threads:[~2016-04-01 22:29 UTC|newest]

Thread overview: 126+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Message-Id=xmqqio26nqk8.fsf@gitster.mtv.corp.google.com>
2016-02-11 16:16 ` [PATCH 1/3] git reset --hard gives clean working tree tboegi
2016-02-11 18:49   ` Junio C Hamano
2016-03-05  7:23     ` Torsten Bögershausen
2016-03-05  8:05       ` Junio C Hamano
2016-03-05  8:27         ` Torsten Bögershausen
2016-03-05 21:18           ` Junio C Hamano
2016-03-07  8:14             ` Junio C Hamano
2016-03-07  8:51               ` Junio C Hamano
2016-03-07  8:58                 ` Torsten Bögershausen
2016-03-07 22:34                   ` Junio C Hamano
2016-03-29 13:25                     ` [PATCH v1 1/7] Make it possible to get sha1 for a path from the index tboegi
2016-03-29 13:28                       ` Duy Nguyen
2016-03-29 13:31                         ` Duy Nguyen
2016-03-29 15:05                           ` Torsten Bögershausen
2016-03-29 19:32                       ` Eric Sunshine
2016-03-29 13:25                     ` [PATCH v1 2/7] convert.c: stream and early out tboegi
2016-03-29 13:25                     ` [PATCH v1 3/7] Allow core.autocrlf=input and core.eol=crlf tboegi
2016-03-29 13:25                     ` [PATCH v1 4/7] t0027: TC for combined attributes tboegi
2016-03-29 13:25                     ` [PATCH v1 5/7] CRLF: unify the "auto" handling tboegi
2016-03-29 19:42                       ` Eric Sunshine
2016-03-29 13:25                     ` [PATCH v1 6/7] correct blame for files commited with CRLF tboegi
2016-03-29 17:21                       ` Junio C Hamano
2016-03-29 19:51                         ` Torsten Bögershausen
2016-03-29 19:58                           ` Junio C Hamano
2016-03-29 20:25                           ` Junio C Hamano
2016-03-29 20:32                             ` Junio C Hamano
2016-03-29 20:50                               ` Junio C Hamano
2016-03-30 17:48                                 ` Torsten Bögershausen
2016-03-29 13:25                     ` [PATCH v1 7/7] convert.c: more safer crlf handling with text attribute tboegi
2016-03-29 18:37                       ` Junio C Hamano
2016-04-01 16:08                     ` [PATCH v2 1/7] Make it possible to get sha1 for a path from the index tboegi
2016-04-01 16:08                     ` [PATCH v2 2/7] convert.c: stream and early out tboegi
2016-04-01 16:08                     ` [PATCH v2 3/7] Allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-01 22:20                       ` Junio C Hamano
2016-04-01 16:08                     ` [PATCH v2 4/7] t0027: TC for combined attributes tboegi
2016-04-01 22:22                       ` Junio C Hamano
2016-04-01 16:08                     ` [PATCH v2 5/7] CRLF: unify the "auto" handling tboegi
2016-04-01 22:25                       ` Junio C Hamano
2016-04-01 16:08                     ` [PATCH v2 6/7] correct blame for files commited with CRLF tboegi
2016-04-01 22:29                       ` Junio C Hamano [this message]
2016-04-03  9:29                         ` Torsten Bögershausen
2016-04-01 16:08                     ` [PATCH v2 7/7] convert.c: more safer crlf handling with text attribute tboegi
2016-04-05 19:23                     ` [PATCH v1] correct blame for files commited with CRLF tboegi
2016-04-05 20:57                       ` Junio C Hamano
2016-04-05 21:12                       ` Junio C Hamano
2016-04-06  4:17                         ` Torsten Bögershausen
2016-04-19 13:24                     ` [PATCH v5 1/4] t0027: Make more reliable tboegi
2016-04-19 13:26                     ` [PATCH v5 2/4] convert: allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-19 13:26                     ` [PATCH v5 3/4] t0027: test cases for combined attributes tboegi
2016-04-19 21:32                       ` Junio C Hamano
2016-04-20 15:52                         ` Torsten Bögershausen
2016-04-19 13:26                     ` [PATCH v5 4/4] convert.c: ident + core.autocrlf didn't work tboegi
2016-04-20 22:27                       ` Junio C Hamano
2016-04-22 14:38                     ` [PATCH v6 01/10] t0027: Make more reliable tboegi
2016-04-22 22:03                       ` Junio C Hamano
2016-04-24  3:45                         ` Torsten Bögershausen
2016-04-22 14:53                     ` [PATCH v6 02/10] convert: allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-22 14:53                     ` [PATCH v6 03/10] t0027: test cases for combined attributes tboegi
2016-04-22 14:53                     ` [PATCH v6 04/10] convert.c: ident + core.autocrlf didn't work tboegi
2016-04-22 14:53                     ` [PATCH v6 05/10] read-cache: factor out get_sha1_from_index() helper tboegi
2016-04-22 14:53                     ` [PATCH v6 06/10] convert.c: stream and early out tboegi
2016-04-22 14:53                     ` [PATCH v6 07/10] convert: unify the "auto" handling of CRLF tboegi
2016-04-22 14:53                     ` [PATCH v6 08/10] convert.c: more safer crlf handling with text attribute tboegi
2016-04-22 14:53                     ` [PATCH v6 09/10] t6038; use crlf on all platforms tboegi
2016-04-22 14:53                     ` [PATCH v6 10/10] ce_compare_data() did not respect conversion tboegi
2016-04-24 15:10                     ` [PATCH v6b 01/10] t0027: Make commit_chk_wrnNNO() reliable tboegi
2016-04-24 15:11                     ` [PATCH v6b 02/10] convert: allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-24 15:11                     ` [PATCH v6b 03/10] t0027: test cases for combined attributes tboegi
2016-04-24 15:11                     ` [PATCH v6b 04/10] convert.c: ident + core.autocrlf didn't work tboegi
2016-04-24 15:11                     ` [PATCH v6b 05/10] read-cache: factor out get_sha1_from_index() helper tboegi
2016-04-24 15:11                     ` [PATCH v6b 06/10] convert.c: stream and early out tboegi
2016-04-24 15:11                     ` [PATCH v6b 07/10] convert: unify the "auto" handling of CRLF tboegi
2016-04-24 15:11                     ` [PATCH v6b 08/10] convert.c: more safer crlf handling with text attribute tboegi
2016-04-24 15:11                     ` [PATCH v6b 09/10] t6038; use crlf on all platforms tboegi
2016-04-24 15:11                     ` [PATCH v6b 10/10] ce_compare_data() did not respect conversion tboegi
2016-04-25 16:56                     ` [PATCH v7 01/10] t0027: Make commit_chk_wrnNNO() reliable tboegi
2016-04-25 19:15                       ` Junio C Hamano
2016-04-25 16:56                     ` [PATCH v7 02/10] convert: allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-25 16:56                     ` [PATCH v7 03/10] t0027: test cases for combined attributes tboegi
2016-04-25 16:56                     ` [PATCH v7 04/10] convert.c: ident + core.autocrlf didn't work tboegi
2016-04-25 16:56                     ` [PATCH v7 05/10] read-cache: factor out get_sha1_from_index() helper tboegi
2016-04-25 16:56                     ` [PATCH v7 06/10] convert.c: stream and early out tboegi
2016-04-25 16:56                     ` [PATCH v7 07/10] convert: unify the "auto" handling of CRLF tboegi
2016-04-25 19:37                       ` Junio C Hamano
2016-04-26 16:33                         ` Torsten Bögershausen
2016-04-26 17:42                           ` Junio C Hamano
2016-04-25 16:56                     ` [PATCH v7 08/10] convert.c: more safer crlf handling with text attribute tboegi
2016-04-25 16:56                     ` [PATCH v7 09/10] t6038; use crlf on all platforms tboegi
2016-04-25 16:56                     ` [PATCH v7 10/10] ce_compare_data() did not respect conversion tboegi
2016-04-29 15:01                     ` [PATCH v8 01/10] t0027: make commit_chk_wrnNNO() reliable tboegi
2016-04-29 15:01                     ` [PATCH v8 02/10] convert: allow core.autocrlf=input and core.eol=crlf tboegi
2016-04-29 15:01                     ` [PATCH v8 03/10] t0027: test cases for combined attributes tboegi
2016-04-29 15:01                     ` [PATCH v8 04/10] convert.c: ident + core.autocrlf didn't work tboegi
2016-04-29 15:02                     ` [PATCH v8 05/10] read-cache: factor out get_sha1_from_index() helper tboegi
2016-04-29 15:02                     ` [PATCH v8 06/10] convert.c: stream and early out tboegi
2016-04-29 15:02                     ` [PATCH v8 07/10] convert: unify the "auto" handling of CRLF tboegi
2016-11-25 15:48                       ` Torsten Bögershausen
2016-11-27 16:22                         ` [PATCH/RFC v1 1/1] New way to normalize the line endings tboegi
2016-11-29 19:15                           ` Junio C Hamano
2017-04-12 11:48                         ` [PATCH v2 1/1] Document how " tboegi
2016-04-29 15:02                     ` [PATCH v8 08/10] convert.c: more safer crlf handling with text attribute tboegi
2016-04-29 15:02                     ` [PATCH v8 09/10] t6038; use crlf on all platforms tboegi
2016-04-29 15:02                     ` [PATCH v8 10/10] ce_compare_data() did not respect conversion tboegi
2016-04-29 18:20                       ` Junio C Hamano
2016-04-29 21:09                       ` Junio C Hamano
2016-05-01 16:27                         ` Torsten Bögershausen
2016-05-02 18:16                           ` Junio C Hamano
2016-05-02 19:33                             ` Junio C Hamano
2016-05-03 16:02                               ` Torsten Bögershausen
2016-05-03 18:31                                 ` Junio C Hamano
2016-05-04  4:07                                   ` Torsten Bögershausen
2016-05-04  7:23                                     ` Junio C Hamano
2016-05-06  8:54                                       ` Torsten Bögershausen
2016-05-06 17:11                                         ` Junio C Hamano
2016-05-07  6:10                     ` [PATCH v9 0/6] convert-eol-autocrlf, old 5..10 now 1..6 tboegi
2016-05-07  6:10                     ` [PATCH v9 1/6] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-09 19:54                       ` Junio C Hamano
2016-05-07  6:11                     ` [PATCH v9 2/6] convert.c: stream and early out tboegi
2016-05-09 20:29                       ` Junio C Hamano
2016-05-11  4:30                         ` Torsten Bögershausen
2016-05-07  6:11                     ` [PATCH v9 3/6] convert: unify the "auto" handling of CRLF tboegi
2016-05-07  6:11                     ` [PATCH v9 4/6] convert.c: more safer crlf handling with text attribute tboegi
2016-05-07  6:11                     ` [PATCH v9 5/6] t6038; use crlf on all platforms tboegi
2016-05-07  6:11                     ` [PATCH v9 6/6] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-02-11 16:16 ` [PATCH 2/3] Factor out convert_cmp_checkout() into convert.c tboegi
2016-02-11 16:16 ` [PATCH 3/3] convert.c: Optimize convert_cmp_checkout() for changed file len tboegi

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