From: Paul Tan <pyokagan@gmail.com>
To: Johannes Schindelin <johannes.schindelin@gmx.de>
Cc: Git List <git@vger.kernel.org>, Stefan Beller <sbeller@google.com>
Subject: Re: [PATCH/WIP v3 06/31] am: detect mbox patches
Date: Fri, 26 Jun 2015 15:42:46 +0800 [thread overview]
Message-ID: <CACRoPnQgy2C__912pVx+Xn2YTgMgfV8ukLtbd8f5uvk82EjnAw@mail.gmail.com> (raw)
In-Reply-To: <CACRoPnQAGt_mLbG-EtJ+qTpD2OvNgi-MZfU=NoKCoSmhCOnBEw@mail.gmail.com>
On Thu, Jun 25, 2015 at 9:40 PM, Paul Tan <pyokagan@gmail.com> wrote:
> On Wed, Jun 24, 2015 at 11:10 PM, Johannes Schindelin
> <johannes.schindelin@gmx.de> wrote:
>>> + else if (l1.len && l2.len && l3.len && is_email(paths->items->string))
>>> + ret = PATCH_FORMAT_MBOX;
>>
>> Maybe we can do better than this by folding the `is_email() function into this here function, reusing the same strbuf to read the lines and keeping track of the email header lines we saw... I would really like to avoid opening the same file twice just to figure out whether it is in email format.
>
> Okay, how about every time we call a strbuf_getline(), we save the
> line to a string_list as well? Like string_list_getline_crlf() below:
> [...]
Hmm, on second thought, I don't think it's worth the code complexity.
While I agree it's desirable to not open the file twice, I don't think
detecting the patch format is so IO intensive that it needs to be
optimized to that extent.
Instead, we should probably just modify is_email() to take a FILE*,
and then fseek(fp, 0L, SEEK_SET) to the beginning.
I think the logic of is_email() is complex and so it should not be
folded into the detect_patch_format() function, especially since we
may add detection of other patch formats in the future, and may need
more complex heuristics.
Regards,
Paul
next prev parent reply other threads:[~2015-06-26 7:42 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 11:25 [PATCH/WIP v3 00/31] Make git-am a builtin Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 01/31] wrapper: implement xopen() Paul Tan
2015-06-24 16:28 ` Johannes Schindelin
2015-06-24 16:59 ` Stefan Beller
2015-06-24 18:39 ` Johannes Schindelin
2015-07-01 9:41 ` Paul Tan
2015-07-01 9:53 ` Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 02/31] wrapper: implement xfopen() Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 03/31] am: implement skeletal builtin am Paul Tan
2015-06-18 20:26 ` Junio C Hamano
2015-06-19 9:56 ` Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 04/31] am: implement patch queue mechanism Paul Tan
2015-06-18 17:47 ` Stefan Beller
2015-06-18 20:43 ` Junio C Hamano
2015-06-19 12:49 ` Paul Tan
2015-06-24 14:59 ` Johannes Schindelin
2015-06-25 15:16 ` Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 05/31] am: split out mbox/maildir patches with git-mailsplit Paul Tan
2015-06-18 20:52 ` Junio C Hamano
2015-06-18 11:25 ` [PATCH/WIP v3 06/31] am: detect mbox patches Paul Tan
2015-06-18 21:02 ` Junio C Hamano
2015-06-24 8:41 ` Paul Tan
2015-06-24 15:10 ` Johannes Schindelin
2015-06-25 13:40 ` Paul Tan
2015-06-26 7:42 ` Paul Tan [this message]
2015-06-18 11:25 ` [PATCH/WIP v3 07/31] am: extract patch, message and authorship with git-mailinfo Paul Tan
2015-06-18 21:10 ` Junio C Hamano
2015-06-19 9:22 ` Paul Tan
2015-06-19 16:13 ` Junio C Hamano
2015-06-24 7:54 ` Paul Tan
2015-06-24 15:59 ` Junio C Hamano
2015-06-25 11:54 ` Paul Tan
[not found] ` <CAPc5daVbpB_T4cY1xvLrBKPUZw0JNMXqNAOsKE-R7NPO2nrnZA@mail.gmail.com>
2015-06-19 16:15 ` Paul Tan
2015-06-19 20:12 ` Johannes Schindelin
2015-06-24 16:36 ` Johannes Schindelin
2015-06-26 8:11 ` Paul Tan
2015-06-26 20:41 ` Junio C Hamano
2015-06-18 11:25 ` [PATCH/WIP v3 08/31] am: apply patch with git-apply Paul Tan
2015-06-18 21:23 ` Junio C Hamano
2015-06-18 11:25 ` [PATCH/WIP v3 09/31] am: commit applied patch Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 10/31] am: refresh the index at start Paul Tan
2015-06-18 21:28 ` Junio C Hamano
2015-06-19 8:07 ` Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 11/31] am: refuse to apply patches if index is dirty Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 12/31] am: implement --resolved/--continue Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 13/31] am: implement --skip Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 14/31] am: implement --abort Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 15/31] am: don't accept patches when there's a session in progress Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 16/31] am: implement quiet option Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 17/31] am: exit with user friendly message on patch failure Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 18/31] am: implement am --signoff Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 19/31] cache-tree: introduce write_index_as_tree() Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 20/31] am: implement 3-way merge Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 21/31] am: --rebasing Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 22/31] am: don't use git-mailinfo if --rebasing Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 23/31] am: handle stray state directory Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 24/31] am: implement -k/--keep, --keep-non-patch Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 25/31] am: implement --[no-]message-id, am.messageid Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 26/31] am: support --keep-cr, am.keepcr Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 27/31] am: implement --[no-]scissors Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 28/31] am: pass git-apply's options to git-apply Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 29/31] am: implement --ignore-date Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 30/31] am: implement --committer-date-is-author-date Paul Tan
2015-06-18 11:25 ` [PATCH/WIP v3 31/31] am: implement -S/--gpg-sign, commit.gpgsign Paul Tan
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