From: Eric Sunshine <sunshine@sunshineco.com>
To: "Torsten Bögershausen" <tboegi@web.de>
Cc: Git List <git@vger.kernel.org>
Subject: Re: [PATCH v1 3/3] convert: ce_compare_data() checks for a sha1 of a path
Date: Sun, 15 May 2016 02:52:50 -0400 [thread overview]
Message-ID: <CAPig+cSYU-+G5p=SaYs=PvMkLiB745Nf7sY3sKe3aozfVvq+iQ@mail.gmail.com> (raw)
In-Reply-To: <1463294299-20256-1-git-send-email-tboegi@web.de>
On Sun, May 15, 2016 at 2:38 AM, <tboegi@web.de> wrote:
> To compare a file in working tree with the index, convert_to_git() is used,
> the the result is hashed and the hash value compared with ce->sha1.
>
> Deep down would_convert_crlf_at_commit() is invoked, to check if CRLF
> are converted or not: When a CRLF had been in the index before, CRLF in
> the working tree are not converted.
>
> While in a merge, a file name in the working tree has different blobs
> in the index with different hash values.
> Forwarding ce->sha1 from ce_compare_data() into crlf_to_git() makes sure
> the would_convert_crlf_at_commit() looks at the appropriate blob.
>
> Signed-off-by: Torsten Bögershausen <tboegi@web.de>
> ---
> diff --git a/convert.c b/convert.c
> @@ -217,21 +217,29 @@ static void check_safe_crlf(const char *path, enum crlf_action crlf_action,
> -static int has_cr_in_index(const char *path)
> +static int has_cr_in_index(const char *path, const unsigned char *sha1)
> {
> unsigned long sz;
> void *data;
> int has_cr;
> -
> - data = read_blob_data_from_cache(path, &sz);
> - if (!data)
> + enum object_type type;
> + if (!sha1)
> + sha1 = get_sha1_from_cache(path);
> + if (!sha1)
> + return 0;
> + data = read_sha1_file(sha1, &type, &sz);
> + if (!data || type != OBJ_BLOB) {
> + free(data);
> return 0;
> + }
> +
> has_cr = memchr(data, '\r', sz) != NULL;
> free(data);
> return has_cr;
> }
Possible rewrite which would make it harder to forget to free 'data':
int has_cr = 0;
...
data = read_sha1_file(...);
if (data && type == OBJ_BLOB)
has_cr = memchr(...);
free(data);
return has_cr;
next prev parent reply other threads:[~2016-05-15 6:53 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-13 13:49 Bug report: Duplicate CRLF rewrite warnings on commit Adam Dinwoodie
2016-05-13 16:43 ` Junio C Hamano
2016-05-14 5:40 ` Torsten Bögershausen
2016-05-14 11:17 ` Adam Dinwoodie
2016-05-13 18:12 ` Jeff King
2016-05-13 19:46 ` Junio C Hamano
2016-05-13 19:53 ` Jeff King
2016-05-15 6:08 ` [PATCH/RFC v1 0/1] Quickfix ?No duplicate " tboegi
2016-05-15 6:08 ` [PATCH/RFC v1 1/1] No " tboegi
2016-05-15 6:15 ` Eric Sunshine
2016-05-15 6:37 ` [PATCH v1 0/3] CRLF-Handling: bug fix around ce_compare_data() tboegi
2016-05-15 6:38 ` [PATCH v1 1/3] t6038; use crlf on all platforms tboegi
2016-05-15 6:42 ` Eric Sunshine
2016-05-15 6:38 ` [PATCH v1 2/3] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-15 6:45 ` Eric Sunshine
2016-05-15 6:38 ` [PATCH v1 3/3] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-15 6:52 ` Eric Sunshine [this message]
2016-05-15 22:14 ` Junio C Hamano
2016-05-16 15:51 ` [PATCH v3 0/1] CRLF-Handling: bug fix around ce_compare_data() tboegi
2016-05-16 16:13 ` Junio C Hamano
2016-05-17 4:08 ` Torsten Bögershausen
2016-05-17 16:09 ` [PATCH v1 1/1] t6038; use crlf on all platforms tboegi
2016-05-17 18:39 ` Junio C Hamano
2016-05-17 16:41 ` [PATCH v4 0/2] CRLF: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-17 16:41 ` [PATCH v4 1/2] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-17 16:41 ` [PATCH v4 2/2] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-17 18:58 ` Junio C Hamano
2016-05-18 4:26 ` Torsten Bögershausen
2016-05-18 15:10 ` Torsten Bögershausen
2016-05-19 14:21 ` [PATCH v5 0/2] CRLF: " tboegi
2016-05-19 23:10 ` Junio C Hamano
2016-05-19 14:21 ` [PATCH v5 1/2] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-19 14:21 ` [PATCH v5 2/2] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-19 23:03 ` Junio C Hamano
2016-05-20 17:12 ` [PATCH v6 1/2] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-20 17:12 ` [PATCH v6 2/2] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-20 17:46 ` Junio C Hamano
2016-05-21 10:01 ` [PATCH v7 1/2] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-21 10:01 ` [PATCH v7 2/2] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-24 18:36 ` Junio C Hamano
2016-05-16 15:51 ` [PATCH v3 1/1] " tboegi
2016-05-30 17:00 ` [PATCH v1 0/1] t6038-merge-text-auto.sh tboegi
2016-05-30 18:00 ` Junio C Hamano
2016-05-30 18:48 ` Junio C Hamano
2016-05-30 17:00 ` [PATCH v1 1/1] t6038: different eol for "Merge addition of text=auto" tboegi
2016-06-07 15:20 ` [PATCH v2 0/3] unified auto CRLF handling, V2 tboegi
2016-06-07 15:20 ` [PATCH v2 1/3] convert: unify the "auto" handling of CRLF tboegi
2016-06-07 15:20 ` [PATCH v2 2/3] read-cache: factor out get_sha1_from_index() helper tboegi
2016-06-07 15:20 ` [PATCH v2 3/3] Correct ce_compare_data() in a middle of a merge tboegi
2016-05-15 13:02 ` [PATCH v2 0/3] CRLF-Handling: bug fix around ce_compare_data() tboegi
2016-05-15 13:02 ` [PATCH v2 1/3] read-cache: factor out get_sha1_from_index() helper tboegi
2016-05-15 13:02 ` [PATCH v2 2/3] convert: ce_compare_data() checks for a sha1 of a path tboegi
2016-05-15 13:02 ` [PATCH v2 3/3] t6038; use crlf on all platforms tboegi
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