Mercurial > hg
view contrib/all-revsets.txt @ 36528:72e487851a53
debugcommands: add debugwireproto command
We currently don't have a low-level mechanism for sending
arbitrary wire protocol commands. Having a generic and robust
mechanism for sending wire protocol commands, examining wire
data, etc would make it vastly easier to test the wire protocol
and debug server operation. This is a problem I've wanted a
solution for numerous times, especially recently as I've been
hacking on a new version of the wire protocol.
This commit establishes a `hg debugwireproto` command for sending
data to a peer.
The command invents a mini language for specifying actions to take.
This will enable a lot of flexibility for issuing commands and testing
variations for how commands are sent.
Right now, we only support low-level raw sends and receives. These
are probably the least valuable commands to intended users of this
command. But they are the most useful commands to implement to
bootstrap the feature (I've chosen to reimplement test-ssh-proto.t
using this command to prove its usefulness).
My eventual goal of `hg debugwireproto` is to allow calling wire
protocol commands with a human-friendly interface. Essentially,
people can type in a command name and arguments and
`hg debugwireproto` will figure out how to send that on the wire.
I'd love to eventually be able to save the server's raw response
to a file. This would allow us to e.g. call "getbundle" wire
protocol commands easily.
test-ssh-proto.t has been updated to use the new command in lieu
of piping directly to a server process. As part of the transition,
test behavior improved. Before, we piped all request data to the
server at once. Now, we have explicit control over the ordering of
operations. e.g. we can send one command, receive its response,
then send another command. This will allow us to more robustly
test race conditions, buffering behavior, etc.
There were some subtle changes in test behavior. For example,
previous behavior would often send trailing newlines to the server.
The new mechanism doesn't treat literal newlines specially and
requires newlines be escaped in the payload.
Because the new logging code is very low level, it is easy to
introduce race conditions in tests. For example, the number of bytes
returned by a read() may vary depending on load. This is why tests
make heavy use of "readline" for consuming data: the result of
that operation should be deterministic and not subject to race
conditions. There are still some uses of "readavailable." However,
those are only for reading from stderr. I was able to reproduce
timing issues with my system under load when using "readavailable"
globally. But if I "readline" to grab stdout, "readavailable"
appears to work deterministically for stderr. I think this is
because the server writes to stderr first. As long as the OS
delivers writes to pipes in the same order they were made, this
should work. If there are timing issues, we can introduce a
mechanism to readline from stderr.
Differential Revision: https://phab.mercurial-scm.org/D2392
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 01 Mar 2018 08:24:54 -0800 |
parents | 318a24b52eeb |
children | 5957fdd1d5f0 |
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# All revsets ever used with revsetbenchmarks.py script # # The goal of this file is to gather all revsets ever used for benchmarking # revset's performance. It should be used to gather revsets that test a # specific usecase or a specific implementation of revset predicates. # If you are working on the smartset implementation itself, check # 'base-revsets.txt'. # # Please update this file with any revsets you use for benchmarking a change so # that future contributors can easily find and retest it when doing further # modification. Feel free to highlight interesting variants if needed. ## Revset from this section are all extracted from changelog when this file was # created. Feel free to dig and improve documentation. # Used in revision da05fe01170b (20000::) - (20000) # Used in revision 95af98616aa7 parents(20000) # Used in revision 186fd06283b4 (_intlist('20000\x0020001')) and merge() # Used in revision 911f5a6579d1 p1(20000) p2(10000) # Used in revision b6dc3b79bb25 0:: # Used in revision faf4f63533ff bookmark() # Used in revision 22ba2c0825da tip~25 # Used in revision 0cf46b8298fe bisect(range) # Used in revision 5b65429721d5 divergent() # Used in revision 6261b9c549a2 file(COPYING) # Used in revision 44f471102f3a follow(COPYING) # Used in revision 8040a44aab1c origin(tip) # Used in revision bbf4f3dfd700 rev(25) # Used in revision a428db9ab61d p1() # Used in revision c1546d7400ef min(0::) # Used in revision 546fa6576815 author(lmoscovicz) or author(mpm) author(mpm) or author(lmoscovicz) # Used in revision 9bfe68357c01 public() and id("d82e2223f132") # Used in revision ba89f7b542c9 rev(25) # Used in revision eb763217152a rev(210000) # Used in revision 69524a05a7fa 10:100 parents(10):parents(100) # Used in revision 6f1b8b3f12fd 100~5 parents(100)~5 (100~5)~5 # Used in revision 7a42e5d4c418 children(tip~100) # Used in revision 7e8737e6ab08 100^1 parents(100)^1 (100^1)^1 # Used in revision 30e0dcd7c5ff matching(100) matching(parents(100)) # Used in revision aafeaba22826 0|1|2|3|4|5|6|7|8|9 # Used in revision 33c7a94d4dd0 tip:0 # Used in revision 7d369fae098e (0:100000) # Used in revision b333ca94403d 0 + 1 + 2 + ... + 200 0 + 1 + 2 + ... + 1000 sort(0 + 1 + 2 + ... + 200) sort(0 + 1 + 2 + ... + 1000) # Used in revision 7fbef7932af9 first(0 + 1 + 2 + ... + 1000) # Used in revision ceaf04bb14ff 0:1000 # Used in revision 262e6ad93885 not public() (tip~1000::) - public() not public() and branch("default") # Used in revision 15412bba5a68 0::tip ## all the revsets from this section have been taken from the former central file # for revset's benchmarking, they are undocumented for this reason. all() draft() ::tip draft() and ::tip ::tip and draft() author(lmoscovicz) author(mpm) ::p1(p1(tip)):: public() :10000 and public() :10000 and draft() (not public() - obsolete()) # The one below is used by rebase (children(ancestor(tip~5, tip)) and ::(tip~5)):: # those two `roots(...)` inputs are close to what phase movement use. roots((tip~100::) - (tip~100::tip)) roots((0::) - (0::tip)) # more roots testing roots(tip~100:) roots(:42) roots(not public()) roots((0:tip)::) roots(0::tip) 42:68 and roots(42:tip) # Used in revision f140d6207cca roots(0:tip) # test disjoint set with multiple roots roots((:42) + (tip~42:)) # Testing the behavior of "head()" in various situations head() head() - public() draft() and head() head() and author("mpm") # testing the mutable phases set draft() secret()