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sshpeer: initial definition and implementation of new SSH protocol...
sshpeer: initial definition and implementation of new SSH protocol The existing SSH protocol has several design flaws. Future commits will elaborate on these flaws as new features are introduced to combat these flaws. For now, hopefully you can take me for my word that a ground up rewrite of the SSH protocol is needed. This commit lays the foundation for a new SSH protocol by defining a mechanism to upgrade the SSH transport channel away from the default (version 1) protocol to something modern (which we'll call "version 2" for now). This upgrade process is detailed in the internals documentation for the wire protocol. The gist of it is the client sends a request line preceding the "hello" command/line which basically says "I'm requesting an upgrade: here's what I support." If the server recognizes that line, it processes the upgrade request and the transport channel is switched to use the new version of the protocol. If not, it sends an empty response, which is how all Mercurial SSH servers from the beginning of time reacted to unknown commands. The upgrade request is effectively ignored and the client continues to use the existing version of the protocol as if nothing happened. The new version of the SSH protocol is completely identical to version 1 aside from the upgrade dance and the bytes that follow. The immediate bytes that follow the protocol switch are defined to be a length framed "capabilities: " line containing the remote's advertised capabilities. In reality, this looks very similar to what the "hello" response would look like. But it will evolve quickly. The methodology by which the protocol will evolve is important. I'm not going to introduce the new protocol all at once. That would likely lead to endless bike shedding and forward progress would stall. Instead, I intend to tricle out new features and diversions from the existing protocol in small, incremental changes. To support the gradual evolution of the protocol, the on-the-wire advertised protocol name contains an "exp" to denote "experimental" and a 4 digit field to capture the sub-version of the protocol. Whenever we make a BC change to the wire protocol, we can increment this version and lock out all older clients because it will appear as a completely different protocol version. This means we can incur as many breaking changes as we want. We don't have to commit to supporting any one feature or idea for a long period of time. We can even evolve the handshake mechanism, because that is defined as being an implementation detail of the negotiated protocol version! Hopefully this lowers the barrier to accepting changes to the protocol and for experimenting with "radical" ideas during its development. In core, sshpeer received most of the attention. We haven't even implemented the server bits for the new protocol in core yet. Instead, we add very primitive support to our test server, mainly just to exercise the added code paths in sshpeer. Differential Revision: https://phab.mercurial-scm.org/D2061 # no-check-commit because of required foo_bar naming

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test-mq-qimport.t
359 lines | 7.5 KiB | text/troff | Tads3Lexer
/ tests / test-mq-qimport.t
Matt Mackall
tests: replace exit 80 with #require
r22046 #require killdaemons
Matt Mackall
tests: unify test-mq-qimport
r12464
$ cat > writelines.py <<EOF
> import sys
> path = sys.argv[1]
> args = sys.argv[2:]
> assert (len(args) % 2) == 0
>
> f = file(path, 'wb')
> for i in xrange(len(args)/2):
> count, s = args[2*i:2*i+2]
> count = int(count)
> s = s.decode('string_escape')
> f.write(s*count)
> f.close()
>
> EOF
Yuya Nishihara
tests: write hgrc of more than two lines by using shell heredoc...
r23172 > cat <<EOF >> $HGRCPATH
> [extensions]
> mq =
> [diff]
> git = 1
> EOF
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg init repo
$ cd repo
Thomas Arendsen Hein
mq: abort if no files or revisions are specified for qimport
r16987 qimport without file or revision
$ hg qimport
abort: no files or revisions specified
[255]
Matt Mackall
tests: unify test-mq-qimport
r12464 qimport non-existing-file
$ hg qimport non-existing-file
abort: unable to read file non-existing-file
[255]
Patrick Mezard
context: make changectx.mutable() benefit from .phase() logic...
r16359 qimport null revision
$ hg qimport -r null
abort: revision -1 is not mutable
timeless
mq: use single quotes in use warning
r29968 (see 'hg help phases' for details)
Patrick Mezard
context: make changectx.mutable() benefit from .phase() logic...
r16359 [255]
$ hg qseries
Matt Mackall
tests: unify test-mq-qimport
r12464 import email
$ hg qimport --push -n email - <<EOF
> From: Username in email <test@example.net>
> Subject: [PATCH] Message in email
> Date: Fri, 02 Jan 1970 00:00:00 +0000
>
> Text before patch.
>
> # HG changeset patch
> # User Username in patch <test@example.net>
> # Date 0 0
> # Node ID 1a706973a7d84cb549823634a821d9bdf21c6220
> # Parent 0000000000000000000000000000000000000000
> First line of commit message.
>
> More text in commit message.
> --- confuse the diff detection
>
> diff --git a/x b/x
> new file mode 100644
> --- /dev/null
> +++ b/x
> @@ -0,0 +1,1 @@
> +new file
> Text after patch.
>
> EOF
adding email to series file
applying email
now at: email
hg tip -v
$ hg tip -v
changeset: 0:1a706973a7d8
tag: email
tag: qbase
tag: qtip
tag: tip
user: Username in patch <test@example.net>
date: Thu Jan 01 00:00:00 1970 +0000
files: x
description:
First line of commit message.
More text in commit message.
$ hg qpop
popping email
patch queue now empty
$ hg qdelete email
import URL
$ echo foo >> foo
$ hg add foo
Mads Kiilerich
tests: remove the last traces of $HGTMP...
r12642 $ hg diff > url.diff
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg revert --no-backup foo
$ rm foo
Under unix: file:///foobar/blah
Under windows: file:///c:/foobar/blah
Mads Kiilerich
tests: remove the last traces of $HGTMP...
r12642 $ patchurl=`pwd | tr '\\\\' /`/url.diff
Matt Mackall
tests: unify test-mq-qimport
r12464 $ expr "$patchurl" : "\/" > /dev/null || patchurl="/$patchurl"
$ hg qimport file://"$patchurl"
adding url.diff to series file
Mads Kiilerich
tests: remove the last traces of $HGTMP...
r12642 $ rm url.diff
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg qun
url.diff
import patch that already exists
$ echo foo2 >> foo
$ hg add foo
$ hg diff > ../url.diff
$ hg revert --no-backup foo
$ rm foo
$ hg qimport ../url.diff
abort: patch "url.diff" already exists
[255]
$ hg qpush
applying url.diff
now at: url.diff
$ cat foo
foo
$ hg qpop
popping url.diff
patch queue now empty
qimport -f
$ hg qimport -f ../url.diff
adding url.diff to series file
$ hg qpush
applying url.diff
now at: url.diff
$ cat foo
foo2
$ hg qpop
popping url.diff
patch queue now empty
build diff with CRLF
Augie Fackler
cleanup: use $PYTHON to run python in many more tests...
r32940 $ $PYTHON ../writelines.py b 5 'a\n' 5 'a\r\n'
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg ci -Am addb
adding b
Augie Fackler
cleanup: use $PYTHON to run python in many more tests...
r32940 $ $PYTHON ../writelines.py b 2 'a\n' 10 'b\n' 2 'a\r\n'
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg diff > b.diff
$ hg up -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
qimport CRLF diff
$ hg qimport b.diff
adding b.diff to series file
$ hg qpush
applying b.diff
now at: b.diff
try to import --push
Patrick Mezard
mq: make qimport --push push all imported patches (issue3130)...
r16119 $ cat > appendfoo.diff <<EOF
> append foo
Mads Kiilerich
check-code: fix check for trailing whitespace on continued lines too...
r17347 >
Patrick Mezard
mq: make qimport --push push all imported patches (issue3130)...
r16119 > diff -r 07f494440405 -r 261500830e46 baz
> --- /dev/null Thu Jan 01 00:00:00 1970 +0000
> +++ b/baz Thu Jan 01 00:00:00 1970 +0000
> @@ -0,0 +1,1 @@
> +foo
> EOF
$ cat > appendbar.diff <<EOF
> append bar
Mads Kiilerich
check-code: fix check for trailing whitespace on continued lines too...
r17347 >
Patrick Mezard
mq: make qimport --push push all imported patches (issue3130)...
r16119 > diff -r 07f494440405 -r 261500830e46 baz
> --- a/baz Thu Jan 01 00:00:00 1970 +0000
> +++ b/baz Thu Jan 01 00:00:00 1970 +0000
> @@ -1,1 +1,2 @@
> foo
> +bar
> EOF
$ hg qimport --push appendfoo.diff appendbar.diff
adding appendfoo.diff to series file
adding appendbar.diff to series file
applying appendfoo.diff
applying appendbar.diff
now at: appendbar.diff
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg qfin -a
patch b.diff finalized without changeset message
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 $ touch .hg/patches/append_foo
Matt Mackall
qimport: record imported revs incrementally (issue3874)...
r21965 $ hg qimport -r 'p1(.)::'
$ hg qapplied
Mads Kiilerich
mq: check for reserved patch name with qimport -r (issue5033)...
r27919 append_foo__1
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 append_bar
Matt Mackall
qimport: record imported revs incrementally (issue3874)...
r21965 $ hg qfin -a
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 $ rm .hg/patches/append_foo
Patrick Mezard
mq: make qimport --push push all imported patches (issue3130)...
r16119 $ hg qimport -r 'p1(.)::' -P
Matt Mackall
tests: unify test-mq-qimport
r12464 $ hg qpop -a
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 popping append_bar
popping append_foo
Matt Mackall
tests: unify test-mq-qimport
r12464 patch queue now empty
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 $ hg qdel append_foo
$ hg qdel -k append_bar
Matt Mackall
tests: unify test-mq-qimport
r12464
qimport -e
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 $ hg qimport -e append_bar
adding append_bar to series file
$ hg qdel -k append_bar
Matt Mackall
tests: unify test-mq-qimport
r12464
qimport -e --name newname oldexisitingpatch
Mads Kiilerich
mq: generate patch names from first line of description...
r26736 $ hg qimport -e --name this-name-is-better append_bar
renaming append_bar to this-name-is-better
Matt Mackall
tests: unify test-mq-qimport
r12464 adding this-name-is-better to series file
$ hg qser
this-name-is-better
url.diff
qimport -e --name without --force
$ cp .hg/patches/this-name-is-better .hg/patches/3.diff
$ hg qimport -e --name this-name-is-better 3.diff
abort: patch "this-name-is-better" already exists
[255]
$ hg qser
this-name-is-better
url.diff
qimport -e --name with --force
$ hg qimport --force -e --name this-name-is-better 3.diff
renaming 3.diff to this-name-is-better
adding this-name-is-better to series file
$ hg qser
this-name-is-better
url.diff
Idan Kamara
mq: check patch name is valid before reading imported file
r14395
Yuya Nishihara
mq: reject new patch name containing leading/trailing whitespace...
r31556 import patch of bad filename
$ touch '../ bad.diff'
$ hg qimport '../ bad.diff'
abort: patch name cannot begin or end with whitespace
[255]
$ touch '.hg/patches/ bad.diff'
$ hg qimport -e ' bad.diff'
abort: patch name cannot begin or end with whitespace
[255]
Idan Kamara
mq: check patch name is valid before reading imported file
r14395 qimport with bad name, should abort before reading file
timeless@mozdev.org
spelling: nonexistent
r17492 $ hg qimport non-existent-file --name .hg
Idan Kamara
mq: check patch name is valid before reading imported file
r14395 abort: patch name cannot begin with ".hg"
[255]
Yuya Nishihara
mq: reject new patch name containing leading/trailing whitespace...
r31556 $ hg qimport non-existent-file --name ' foo'
abort: patch name cannot begin or end with whitespace
[255]
$ hg qimport non-existent-file --name 'foo '
abort: patch name cannot begin or end with whitespace
[255]
Idan Kamara
mq: strip all leading slashes from url when importing...
r14396
qimport http:// patch with leading slashes in url
set up hgweb
$ cd ..
$ hg init served
$ cd served
$ echo a > a
$ hg ci -Am patch
adding a
$ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ cd ../repo
$ hg qimport http://localhost:$HGPORT/raw-rev/0///
adding 0 to series file
Pierre-Yves David
qimport: when mq.secret=True set qimported revision as secret
r16027
check qimport phase:
$ hg -q qpush
now at: 0
$ hg phase qparent
1: draft
$ hg qimport -r qparent
$ hg phase qbase
1: draft
$ hg qfinish qbase
$ echo '[mq]' >> $HGRCPATH
$ echo 'secret=true' >> $HGRCPATH
$ hg qimport -r qparent
$ hg phase qbase
1: secret
Mads Kiilerich
tests: add missing trailing 'cd ..'...
r16913
$ cd ..
Patrick Mezard
tests: enable even more Windows server tests
r17565
Matt Mackall
tests: drop DAEMON_PIDS from killdaemons calls
r25474 $ killdaemons.py
FUJIWARA Katsunori
mq: use fallback patch name if no alpha-numeric in summary line (issue5025)...
r27513
check patch name generation for non-alpha-numeric summary line
$ cd repo
$ hg qpop -a -q
patch queue now empty
$ hg qseries -v
0 U imported_patch_b_diff
1 U 0
2 U this-name-is-better
3 U url.diff
$ echo bb >> b
$ hg commit -m '==++--=='
$ hg qimport -r tip
$ hg qseries -v
0 A 1.diff
1 U imported_patch_b_diff
2 U 0
3 U this-name-is-better
4 U url.diff
Mads Kiilerich
mq: check for reserved patch name with qimport -r (issue5033)...
r27919
check reserved patch names
$ hg qpop -qa
patch queue now empty
$ echo >> b
$ hg commit -m 'status'
$ echo >> b
$ hg commit -m '.'
$ echo >> b
$ hg commit -m 'taken'
$ mkdir .hg/patches/taken
$ touch .hg/patches/taken__1
$ hg qimport -r -3::
$ hg qap
1.diff__1
2.diff
taken__2
Pierre-Yves David
mq: restrict generated patch name to 75 characters (issue5117)...
r28388 check very long patch name
$ hg qpop -qa
patch queue now empty
$ echo >> b
$ hg commit -m 'abcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
$ hg qimport -r .
$ hg qap
abcdefghi_pqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghi_pqrstuvwxyzabcdefg