From: Elijah Newren <newren@gmail.com>
To: <git@vger.kernel.org>
Cc: Junio C Hamano <gitster@pobox.com>,
Michael Haggerty <mhagger@alum.mit.edu>,
Jonathan Nieder <jrnieder@gmail.com>, Jeff King <peff@peff.net>,
David Barr <david.barr@cordelta.com>,
Elijah Newren <newren@gmail.com>
Subject: [PATCH v2 0/5] Fix some fast-import parsing issues
Date: Mon, 1 Apr 2019 09:00:06 -0700 [thread overview]
Message-ID: <20190401160011.20678-1-newren@gmail.com> (raw)
In-Reply-To: <20190220225846.10658-1-newren@gmail.com>
This series fixes a few issues with parsing in fast-import, dating back to
git-2.6.0. The only change since v1 is removing the RFC label; sadly, no
one commented on the first round.
Text from my original submission:
The point behind this series is that fast-import somehow mishandled
get-mark directives after empty orphan commits. Digging into it, I
think it was caused by following a precedent set by a somewhat unsafe
implementation of trying to allow cat-blob directives to appear in the
middle of a commit. My spelunking showed the following commits seemed
to be the most relevant as to how we got to the current state:
777f80d7429b ("fast-import: Allow cat-blob requests at arbitrary
points in stream", 2010-11-28)
8dc6a373d201 ("fast-import: add 'ls' command", 2010-12-02)
97313bef2a16 ("fast-import: use skip_prefix for parsing input",
2014-06-18)
28c7b1f7b7b7 ("fast-import: add a get-mark command", 2015-07-01)
I have a few patches that fix the issue and I think make the parser
more robust against future issues in a way that I think is safe enough
for backward compatibility, but "backward compatible enough" might
concern some folks; if so, please take a look at patches 4 and 5.
Elijah Newren (5):
t9300: demonstrate bug with get-mark and empty orphan commits
git-fast-import.txt: fix wording about where ls command can appear
fast-import: check most prominent commands first
fast-import: only allow cat-blob requests where it makes sense
fast-import: fix erroneous handling of get-mark with empty orphan
commits
Documentation/git-fast-import.txt | 22 +++++++++---------
fast-import.c | 31 ++++++++++++++------------
t/t9300-fast-import.sh | 37 +++++++++++++++++++++++++++++++
3 files changed, 66 insertions(+), 24 deletions(-)
--
2.21.0.1.g0a561c1dbd
next prev parent reply other threads:[~2019-04-01 16:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-20 22:58 [RFC PATCH 0/5] Fix some fast-import parsing issues Elijah Newren
2019-02-20 22:58 ` [RFC PATCH 1/5] t9300: demonstrate bug with get-mark and empty orphan commits Elijah Newren
2019-02-20 22:58 ` [RFC PATCH 2/5] git-fast-import.txt: fix wording about where ls command can appear Elijah Newren
2019-02-20 22:58 ` [RFC PATCH 3/5] fast-import: check most prominent commands first Elijah Newren
2019-02-20 22:58 ` [RFC PATCH 4/5] fast-import: only allow cat-blob requests where it makes sense Elijah Newren
2019-02-20 22:58 ` [RFC PATCH 5/5] fast-import: fix erroneous handling of get-mark with empty orphan commits Elijah Newren
2019-03-08 16:53 ` [RFC PATCH 0/5] Fix some fast-import parsing issues Elijah Newren
2019-04-01 10:44 ` Junio C Hamano
2019-04-01 15:52 ` Elijah Newren
2019-04-01 16:00 ` Elijah Newren [this message]
2019-04-01 16:00 ` [PATCH v2 1/5] t9300: demonstrate bug with get-mark and empty orphan commits Elijah Newren
2019-04-01 16:00 ` [PATCH v2 2/5] git-fast-import.txt: fix wording about where ls command can appear Elijah Newren
2019-04-01 16:00 ` [PATCH v2 3/5] fast-import: check most prominent commands first Elijah Newren
2019-04-01 16:00 ` [PATCH v2 4/5] fast-import: only allow cat-blob requests where it makes sense Elijah Newren
2019-04-01 16:00 ` [PATCH v2 5/5] fast-import: fix erroneous handling of get-mark with empty orphan commits Elijah Newren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190401160011.20678-1-newren@gmail.com \
--to=newren@gmail.com \
--cc=david.barr@cordelta.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=jrnieder@gmail.com \
--cc=mhagger@alum.mit.edu \
--cc=peff@peff.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).