Here's another round of my pkt-line fixes. The more I dug, the more
interesting corners I found. :)
There are really several potentially independent topics rolled together
here. There are dependencies between some of them, so I tried to float
the most independent and non-controversial bits to the beginning. We may
want those as a separate topic to merge sooner, and have the rest as a
topic build on top.
Overall, the diffstat shows a reduction in lines (and I even added a few
dozen lines of comments), which is nice. The intent was to fix some bugs
and corner cases, but I found a lot of cleanup opportunities in the
middle.
builtin/archive.c | 17 ++--
builtin/fetch-pack.c | 11 +-
builtin/receive-pack.c | 10 +-
builtin/send-pack.c | 4 +-
builtin/upload-archive.c | 45 +++------
cache.h | 4 +-
connect.c | 13 +--
daemon.c | 4 +-
fetch-pack.c | 18 ++--
http-backend.c | 8 +-
http.c | 1 +
pkt-line.c | 126 ++++++++++-------------
pkt-line.h | 72 +++++++++++++-
remote-curl.c | 188 ++++++++++++++++-------------------
send-pack.c | 22 ++--
sideband.c | 11 +-
sideband.h | 3 -
t/t5503-tagfollow.sh | 38 ++++---
t/t5700-clone-reference.sh | 10 +-
transport.c | 6 +-
upload-pack.c | 40 +++-----
write_or_die.c | 19 ++--
22 files changed, 321 insertions(+), 349 deletions(-)
The patches are:
[01/19]: upload-pack: use get_sha1_hex to parse "shallow" lines
New in this round; fixes a potential interoperability problem.
[02/19]: upload-pack: do not add duplicate objects to shallow list
New. Fixes a potential memory-consumption denial-of-service.
[03/19]: upload-pack: remove packet debugging harness
New. Optional cleanup, but later patches textually depend on it.
[04/19]: fetch-pack: fix out-of-bounds buffer offset in get_ack
New. Fixes a potential interoperability problem.
[05/19]: send-pack: prefer prefixcmp over memcmp in receive_status
New. Optional cleanup.
[06/19]: upload-archive: do not copy repo name
[07/19]: upload-archive: use argv_array to store client arguments
New. Optional cleanup.
[08/19]: write_or_die: raise SIGPIPE when we get EPIPE
[09/19]: pkt-line: move a misplaced comment
[10/19]: pkt-line: drop safe_write function
The latter two were in the last round; but it's 08/19 that makes
doing 10/19 safe. I think it's also a sane thing to be doing in
general for existing callers of write_or_die.
These can really be pulled into a separate topic if we want, as
there isn't even a lot of textual dependency.
[11/19]: pkt-line: provide a generic reading function with options
This is an alternative to the proliferation of different reading
functions that round 2 had. I think it ends up cleaner. It also
addresses Jonathan's function-signature concerns.
[12/19]: pkt-line: teach packet_read_line to chomp newlines
New. A convenience cleanup that drops a lot of lines. Technically
optional, but later patches depend heavily on it (textually, and for
splitting line-readers from binary-readers).
[13/19]: pkt-line: move LARGE_PACKET_MAX definition from sideband
[14/19]: pkt-line: provide a LARGE_PACKET_MAX static buffer
New. Another cleanup that makes packet_read_line callers a bit
simpler, and bumps the packet size limits throughout git, as we
discussed.
[15/19]: pkt-line: share buffer/descriptor reading implementation
[16/19]: teach get_remote_heads to read from a memory buffer
[17/19]: remote-curl: pass buffer straight to get_remote_heads
These are more or less ported from v2's patches 6-8, except that the
earlier pkt-line changes make the first one way more pleasant.
[18/19]: remote-curl: move ref-parsing code up in file
[19/19]: remote-curl: always parse incoming refs
...and the yak is shaved. More or less a straight rebase of their v2
counterparts, and the thing that actually started me on this topic.
I know it's a big series, but I tried hard to break it down into
bite-sized chunks. Thanks for your reviewing patience.
-Peff
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