From: Junio C Hamano <gitster@pobox•com>
To: Nicolas Pitre <nico@fluxnic•net>
Cc: git@vger•kernel.org
Subject: Re: [PATCH 05/23] pack v4: add commit object parsing
Date: Tue, 27 Aug 2013 08:26:08 -0700 [thread overview]
Message-ID: <xmqq7gf7f94f.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <1377577567-27655-6-git-send-email-nico@fluxnic.net> (Nicolas Pitre's message of "Tue, 27 Aug 2013 00:25:49 -0400")
Nicolas Pitre <nico@fluxnic•net> writes:
> Let's create another dictionary table to hold the author and committer
> entries. We use the same table format used for tree entries where the
> 16 bit data prefix is conveniently used to store the timezone value.
>
> In order to copy straight from a commit object buffer, dict_add_entry()
> is modified to get the string length as the provided string pointer is
> not always be null terminated.
>
> Signed-off-by: Nicolas Pitre <nico@fluxnic•net>
> ---
> @@ -135,8 +136,73 @@ static void sort_dict_entries_by_hits(struct dict_table *t)
> rehash_entries(t);
> }
>
> +static struct dict_table *commit_name_table;
> static struct dict_table *tree_path_table;
>
> +/*
> + * Parse the author/committer line from a canonical commit object.
> + * The 'from' argument points right after the "author " or "committer "
> + * string. The time zone is parsed and stored in *tz_val. The returned
> + * pointer is right after the end of the email address which is also just
> + * before the time value, or NULL if a parsing error is encountered.
> + */
> +static char *get_nameend_and_tz(char *from, int *tz_val)
> +{
> + char *end, *tz;
> +
> + tz = strchr(from, '\n');
> + /* let's assume the smallest possible string to be "x <x> 0 +0000\n" */
> + if (!tz || tz - from < 13)
> + return NULL;
> + tz -= 4;
> + end = tz - 4;
> + while (end - from > 5 && *end != ' ')
> + end--;
> + if (end[-1] != '>' || end[0] != ' ' || tz[-2] != ' ')
> + return NULL;
> + *tz_val = (tz[0] - '0') * 1000 +
> + (tz[1] - '0') * 100 +
> + (tz[2] - '0') * 10 +
> + (tz[3] - '0');
> + switch (tz[-1]) {
> + default: return NULL;
> + case '+': break;
> + case '-': *tz_val = -*tz_val;
> + }
> + return end;
> +}
This may want to share code with ident.c::split_ident_line(), as we
have been trying to reduce the number of ident-line parsers.
next prev parent reply other threads:[~2013-08-27 15:26 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-27 4:25 [PATCH 00/23] Preliminary pack v4 support Nicolas Pitre
2013-08-27 4:25 ` [PATCH 01/23] pack v4: initial pack dictionary structure and code Nicolas Pitre
2013-08-27 15:08 ` Junio C Hamano
2013-08-27 16:13 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 02/23] export packed_object_info() Nicolas Pitre
2013-08-27 4:25 ` [PATCH 03/23] pack v4: scan tree objects Nicolas Pitre
2013-08-27 4:25 ` [PATCH 04/23] pack v4: add tree entry mode support to dictionary entries Nicolas Pitre
2013-08-27 4:25 ` [PATCH 05/23] pack v4: add commit object parsing Nicolas Pitre
2013-08-27 15:26 ` Junio C Hamano [this message]
2013-08-27 16:47 ` Nicolas Pitre
2013-08-27 17:42 ` Junio C Hamano
2013-08-27 4:25 ` [PATCH 06/23] pack v4: split the object list and dictionary creation Nicolas Pitre
2013-08-27 4:25 ` [PATCH 07/23] pack v4: move to struct pack_idx_entry and get rid of our own struct idx_entry Nicolas Pitre
2013-08-27 4:25 ` [PATCH 08/23] pack v4: basic references encoding Nicolas Pitre
2013-08-27 15:29 ` Junio C Hamano
2013-08-27 15:53 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 09/23] pack v4: commit object encoding Nicolas Pitre
2013-08-27 15:39 ` Junio C Hamano
2013-08-27 16:50 ` Nicolas Pitre
2013-08-27 19:59 ` Nicolas Pitre
2013-08-27 20:15 ` Junio C Hamano
2013-08-27 21:43 ` Nicolas Pitre
2013-09-02 20:48 ` Duy Nguyen
2013-09-03 6:30 ` Nicolas Pitre
2013-09-03 7:41 ` Duy Nguyen
2013-09-05 3:50 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 10/23] pack v4: tree " Nicolas Pitre
2013-08-27 15:44 ` Junio C Hamano
2013-08-27 16:52 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 11/23] pack v4: dictionary table output Nicolas Pitre
2013-08-27 4:25 ` [PATCH 12/23] pack v4: creation code Nicolas Pitre
2013-08-27 15:48 ` Junio C Hamano
2013-08-27 16:59 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 13/23] pack v4: object headers Nicolas Pitre
2013-08-27 4:25 ` [PATCH 14/23] pack v4: object data copy Nicolas Pitre
2013-08-27 15:53 ` Junio C Hamano
2013-08-27 18:24 ` Nicolas Pitre
2013-08-27 4:25 ` [PATCH 15/23] pack v4: object writing Nicolas Pitre
2013-08-27 4:26 ` [PATCH 16/23] pack v4: tree object delta encoding Nicolas Pitre
2013-08-27 4:26 ` [PATCH 17/23] pack v4: load delta candidate for encoding tree objects Nicolas Pitre
2013-08-27 4:26 ` [PATCH 18/23] pack v4: honor pack.compression config option Nicolas Pitre
2013-08-27 4:26 ` [PATCH 19/23] pack v4: relax commit parsing a bit Nicolas Pitre
2013-08-27 4:26 ` [PATCH 20/23] pack index v3 Nicolas Pitre
2013-08-27 4:26 ` [PATCH 21/23] pack v4: normalize pack name to properly generate the pack index file name Nicolas Pitre
2013-08-27 4:26 ` [PATCH 22/23] pack v4: add progress display Nicolas Pitre
2013-08-27 4:26 ` [PATCH 23/23] initial pack index v3 support on the read side Nicolas Pitre
2013-08-31 11:45 ` Duy Nguyen
2013-09-03 6:09 ` Nicolas Pitre
2013-09-03 7:34 ` Duy Nguyen
2013-08-27 11:17 ` [PATCH] Document pack v4 format Nguyễn Thái Ngọc Duy
2013-08-27 18:25 ` Junio C Hamano
2013-08-27 18:53 ` Nicolas Pitre
2013-08-31 2:49 ` [PATCH v2] " Nguyễn Thái Ngọc Duy
2013-09-03 6:00 ` Nicolas Pitre
2013-09-03 6:46 ` Nicolas Pitre
2013-09-03 11:49 ` Duy Nguyen
2013-09-03 14:54 ` Duy Nguyen
2013-09-05 4:12 ` Nicolas Pitre
2013-09-05 4:19 ` Duy Nguyen
2013-09-05 4:40 ` Nicolas Pitre
2013-09-05 5:04 ` Duy Nguyen
2013-09-05 5:39 ` Nicolas Pitre
2013-09-05 16:52 ` Duy Nguyen
2013-09-05 17:14 ` Nicolas Pitre
2013-09-05 20:26 ` Junio C Hamano
2013-09-05 21:04 ` Nicolas Pitre
2013-09-06 4:18 ` Duy Nguyen
2013-09-06 13:19 ` Nicolas Pitre
2013-09-06 2:14 ` [PATCH v3] " Nguyễn Thái Ngọc Duy
2013-09-06 3:23 ` Nicolas Pitre
2013-09-06 9:48 ` Duy Nguyen
2013-09-06 13:25 ` Nicolas Pitre
2013-09-06 13:44 ` Duy Nguyen
2013-09-06 16:44 ` Nicolas Pitre
2013-09-07 4:57 ` Nicolas Pitre
2013-09-07 4:52 ` Nicolas Pitre
2013-09-07 8:05 ` Duy Nguyen
2013-08-27 15:03 ` [PATCH 00/23] Preliminary pack v4 support Junio C Hamano
2013-08-27 15:59 ` Nicolas Pitre
2013-08-27 16:44 ` Junio C Hamano
2013-08-28 2:30 ` Duy Nguyen
2013-08-28 2:58 ` Nicolas Pitre
2013-08-28 3:06 ` Duy Nguyen
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