##// END OF EJS Templates
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

File last commit:

r32397:2dac9d6a default
r35994:48a3a928 default
Show More
test-casefolding.t
256 lines | 4.6 KiB | text/troff | Tads3Lexer
/ tests / test-casefolding.t
Matt Mackall
tests: replace exit 80 with #require
r22046 #require icasefs
Brodie Rao
tests: unify test-casefolding
r12603
Mads Kiilerich
update: don't clobber untracked files with wrong casing
r15538 $ hg debugfs | grep 'case-sensitive:'
case-sensitive: no
Brodie Rao
tests: unify test-casefolding
r12603 test file addition with bad case
$ hg init repo1
$ cd repo1
$ echo a > a
$ hg add A
$ hg st
A a
$ hg ci -m adda
$ hg manifest
a
$ cd ..
test case collision on rename (issue750)
$ hg init repo2
$ cd repo2
$ echo a > a
$ hg --debug ci -Am adda
adding a
Matt Harbison
tests: fix test-casefolding.t output...
r23779 committing files:
Brodie Rao
tests: unify test-casefolding
r12603 a
Matt Harbison
tests: fix test-casefolding.t output...
r23779 committing manifest
committing changelog
Matt Harbison
test-casefolding: sync with latest code changes...
r32298 updating the branch cache
Brodie Rao
tests: unify test-casefolding
r12603 committed changeset 0:07f4944404050f47db2e5c5071e0e84e7a27bba9
Matt Mackall
tests: remove case-folding false positive
r16288
Case-changing renames should work:
Brodie Rao
tests: unify test-casefolding
r12603
Matt Mackall
tests: remove case-folding false positive
r16288 $ hg mv a A
$ hg mv A a
Brodie Rao
tests: unify test-casefolding
r12603 $ hg st
Patrick Mezard
dirstate: preserve path components case on renames (issue3402)...
r16542
Martin von Zweigbergk
dirstate.walk: don't report same file stat multiple times...
r24621 addremove after case-changing rename has no effect (issue4590)
$ hg mv a A
$ hg addremove
recording removal of a as rename to A (100% similar)
$ hg revert --all
forgetting A
undeleting a
Patrick Mezard
dirstate: preserve path components case on renames (issue3402)...
r16542 test changing case of path components
$ mkdir D
$ echo b > D/b
$ hg ci -Am addb D/b
$ hg mv D/b d/b
Simon Farnsworth
tests: fix test-casefolding.t...
r30223 D/b: not overwriting - file already committed
(hg rename --force to replace the file by recording a rename)
Patrick Mezard
dirstate: preserve path components case on renames (issue3402)...
r16542 $ hg mv D/b d/c
$ hg st
A D/c
R D/b
$ mv D temp
$ mv temp d
$ hg st
A D/c
R D/b
$ hg revert -aq
$ rm d/c
$ echo c > D/c
$ hg add D/c
$ hg st
A D/c
$ hg ci -m addc D/c
$ hg mv d/b d/e
$ hg st
A D/e
R D/b
$ hg revert -aq
$ rm d/e
$ hg mv d/b D/B
$ hg st
A D/B
R D/b
Brodie Rao
tests: unify test-casefolding
r12603 $ cd ..
test case collision between revisions (issue912)
$ hg init repo3
$ cd repo3
$ echo a > a
$ hg ci -Am adda
adding a
$ hg rm a
$ hg ci -Am removea
$ echo A > A
on linux hfs keeps the old case stored, force it
$ mv a aa
$ mv aa A
$ hg ci -Am addA
adding A
used to fail under case insensitive fs
$ hg up -C 0
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg up -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
Mads Kiilerich
update: don't clobber untracked files with wrong casing
r15538
no clobbering of untracked files with wrong casing
$ hg up -r null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo gold > a
$ hg up
Matt Mackall
merge: fix unknown file merge detection for case-folding systems...
r16284 A: untracked file differs
Jordi Gutiérrez Hermoso
merge: report all files in _checkunknown...
r15894 abort: untracked files in working directory differ from files in requested revision
Mads Kiilerich
update: don't clobber untracked files with wrong casing
r15538 [255]
$ cat a
gold
FUJIWARA Katsunori
largefiles: check existence of the file with case awareness of the filesystem...
r19160 $ rm a
test that normal file in different case on target context is not
unlinked by largefiles extension.
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles=
> EOF
$ hg update -q -C 1
$ hg status -A
$ echo 'A as largefiles' > A
$ hg add --large A
$ hg commit -m '#3'
created new head
$ hg manifest -r 3
.hglf/A
$ hg manifest -r 0
a
$ hg update -q -C 0
$ hg status -A
C a
FUJIWARA Katsunori
largefiles: check unknown files with case awareness of the filesystem...
r19161 $ hg update -q -C 3
$ hg update -q 0
Mads Kiilerich
update: don't clobber untracked files with wrong casing
r15538
Matt Harbison
dirstate: ensure mv source is marked deleted when walking icasefs (issue4760)...
r25877 $ hg up -C -r 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg mv A a
$ hg diff -g > rename.diff
$ hg ci -m 'A -> a'
$ hg up -q '.^'
$ hg import rename.diff -m "import rename A -> a"
applying rename.diff
$ hg st
? rename.diff
$ hg files
a
$ find * | sort
a
rename.diff
$ rm rename.diff
Brodie Rao
tests: unify test-casefolding
r12603 $ cd ..
FUJIWARA Katsunori
dirstate: avoid normalizing letter case on icasefs for exact match (issue3340)...
r16313
FUJIWARA Katsunori
dirstate: fix some problems for recursive case normalization (issue3342)...
r16323 issue 3342: file in nested directory causes unexpected abort
$ hg init issue3342
$ cd issue3342
$ mkdir -p a/B/c/D
$ echo e > a/B/c/D/e
$ hg add a/B/c/D/e
Matt Harbison
revert: restore the ability to revert across case only renames (issue4481)...
r24857 $ hg ci -m 'add e'
issue 4481: revert across case only renames
$ hg mv a/B/c/D/e a/B/c/d/E
$ hg ci -m "uppercase E"
$ echo 'foo' > a/B/c/D/E
$ hg ci -m 'e content change'
$ hg revert --all -r 0
Matt Harbison
tests: remove (glob) annotations that were only for '\' matches...
r35394 removing a/B/c/D/E
adding a/B/c/D/e
Matt Harbison
revert: restore the ability to revert across case only renames (issue4481)...
r24857 $ find * | sort
a
a/B
a/B/c
a/B/c/D
a/B/c/D/e
a/B/c/D/e.orig
FUJIWARA Katsunori
dirstate: fix some problems for recursive case normalization (issue3342)...
r16323
$ cd ..
FUJIWARA Katsunori
dirstate: avoid normalizing letter case on icasefs for exact match (issue3340)...
r16313 issue 3340: mq does not handle case changes correctly
in addition to reported case, 'hg qrefresh' is also tested against
case changes.
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ hg init issue3340
$ cd issue3340
$ echo a > mIxEdCaSe
$ hg add mIxEdCaSe
$ hg commit -m '#0'
$ hg rename mIxEdCaSe tmp
$ hg rename tmp MiXeDcAsE
$ hg status -A
A MiXeDcAsE
mIxEdCaSe
R mIxEdCaSe
$ hg qnew changecase
$ hg status -A
C MiXeDcAsE
$ hg qpop -a
popping changecase
patch queue now empty
$ hg qnew refresh-casechange
$ hg status -A
C mIxEdCaSe
$ hg rename mIxEdCaSe tmp
$ hg rename tmp MiXeDcAsE
$ hg status -A
A MiXeDcAsE
mIxEdCaSe
R mIxEdCaSe
$ hg qrefresh
$ hg status -A
C MiXeDcAsE
Durham Goode
mq: fix qrefresh case sensitivity (issue3271)...
r17888 $ hg qpop -a
popping refresh-casechange
patch queue now empty
$ hg qnew refresh-pattern
$ hg status
$ echo A > A
$ hg add
adding A
$ hg qrefresh a # issue 3271, qrefresh with file handled case wrong
$ hg status # empty status means the qrefresh worked
Augie Fackler
test-casefolding.t: demonstrate a bug with HFS+ ignoring some codepoints
r23595 #if osx
We assume anyone running the tests on a case-insensitive volume on OS
X will be using HFS+. If that's not true, this test will fail.
$ rm A
>>> open(u'a\u200c'.encode('utf-8'), 'w').write('unicode is fun')
$ hg status
M A
Augie Fackler
darwin: omit ignorable codepoints when normcase()ing a file path...
r23597
Augie Fackler
test-casefolding.t: demonstrate a bug with HFS+ ignoring some codepoints
r23595 #endif
Augie Fackler
darwin: omit ignorable codepoints when normcase()ing a file path...
r23597
FUJIWARA Katsunori
dirstate: avoid normalizing letter case on icasefs for exact match (issue3340)...
r16313 $ cd ..