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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-convert-svn-move.t
245 lines | 7.9 KiB | text/troff | Tads3Lexer
/ tests / test-convert-svn-move.t
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Matt Mackall
tests: replace exit 80 with #require
 r22046 #require svn svn-bindings
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370
Martin Geisler
tests: don't overwrite HGRCPATH...
 r13519 $ cat >> $HGRCPATH <<EOF
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 > [extensions]
Mads Kiilerich
check-code: fix check for trailing whitespace on continued lines too...
 r17347 > convert =
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 > EOF
$ svnadmin create svn-repo
$ svnadmin load -q svn-repo < "$TESTDIR/svn/move.svndump"
Mads Kiilerich
tests: cleanup of svn url handling...
 r17033 $ SVNREPOPATH=`pwd`/svn-repo
#if windows
Augie Fackler
tests: use $PYTHON instead of hardcoding python...
 r22947 $ SVNREPOURL=file:///`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
Mads Kiilerich
tests: cleanup of svn url handling...
 r17033 #else
Augie Fackler
tests: use $PYTHON instead of hardcoding python...
 r22947 $ SVNREPOURL=file://`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
Mads Kiilerich
tests: cleanup of svn url handling...
 r17033 #endif
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370
Convert trunk and branches
Mads Kiilerich
tests: cleanup of svn url handling...
 r17033 $ hg convert --datesort "$SVNREPOURL"/subproject A-hg
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 initializing destination A-hg repository
scanning source...
sorting...
converting...
13 createtrunk
12 moved1
11 moved1
10 moved2
9 changeb and rm d2
8 changeb and rm d2
7 moved1again
6 moved1again
5 copyfilefrompast
4 copydirfrompast
3 add d3
2 copy dir and remove subdir
1 add d4old
0 rename d4old into d4new
$ cd A-hg
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev} {desc|firstline} files: {files}\n'
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 o 13 rename d4old into d4new files: d4new/g d4old/g
|
o 12 add d4old files: d4old/g
|
o 11 copy dir and remove subdir files: d3/d31/e d4/d31/e d4/f
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o 10 add d3 files: d3/d31/e d3/f
|
o 9 copydirfrompast files: d2/d
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o 8 copyfilefrompast files: d
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o 7 moved1again files: d1/b d1/c
|
| o 6 moved1again files:
| |
o | 5 changeb and rm d2 files: d1/b d2/d
| |
| o 4 changeb and rm d2 files: b
| |
o | 3 moved2 files: d2/d
| |
o | 2 moved1 files: d1/b d1/c
| |
| o 1 moved1 files: b c
|
o 0 createtrunk files:
Check move copy records
$ hg st --rev 12:13 --copies
A d4new/g
d4old/g
R d4old/g
Check branches
$ hg branches
Matt Mackall
tests: various fixes for new unified test pattern format
 r12377 default 13:* (glob)
d1 6:* (glob)
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 $ cd ..
$ mkdir test-replace
$ cd test-replace
$ svnadmin create svn-repo
$ svnadmin load -q svn-repo < "$TESTDIR/svn/replace.svndump"
Convert files being replaced by directories
$ hg convert svn-repo hg-repo
initializing destination hg-repo repository
scanning source...
sorting...
converting...
Patrick Mezard
convert/svn: fix changed files list upon directory replacements...
 r13052 6 initial
5 clobber symlink
4 clobber1
3 clobber2
2 adddb
Mads Kiilerich
convert: make toposort order stable when multiple orderings are possible...
 r18376 1 clobberdir
0 branch
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370
$ cd hg-repo
Manifest before
$ hg -v manifest -r 1
644 a
644 d/b
Patrick Mezard
convert/svn: fix changed files list upon directory replacements...
 r13052 644 d2/a
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 644 @ dlink
644 @ dlink2
644 dlink3
Manifest after clobber1
$ hg -v manifest -r 2
644 a/b
644 d/b
Patrick Mezard
convert/svn: fix changed files list upon directory replacements...
 r13052 644 d2/a
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 644 dlink/b
644 @ dlink2
644 dlink3
Manifest after clobber2
$ hg -v manifest -r 3
644 a/b
644 d/b
Patrick Mezard
convert/svn: fix changed files list upon directory replacements...
 r13052 644 d2/a
644 dlink/b
644 @ dlink2
644 @ dlink3
Manifest after clobberdir
$ hg -v manifest -r 6
644 a/b
644 d/b
644 d2/a
644 d2/c
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 644 dlink/b
644 @ dlink2
644 @ dlink3
Try updating
$ hg up -qC default
$ cd ..
Augie Fackler
test-convert-svn-move.t: remove stray '
 r22410 Test convert progress bar
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370
$ cat >> $HGRCPATH <<EOF
> [progress]
> assume-tty = 1
> delay = 0
Augie Fackler
progress: add a changedelay to prevent parallel topics from flapping (issue2698)...
 r14838 > changedelay = 0
Augie Fackler
progress using tests: disable time estimates to avoid flakiness
 r13149 > format = topic bar number
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 > refresh = 0
Martin Geisler
progress: test setting progress.width...
 r13142 > width = 60
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 > EOF
Mads Kiilerich
tests: drop filtercr.py and use the very explicit '\r (no-eol) (esc)' markup
 r17743 $ hg convert svn-repo hg-progress
\r (no-eol) (esc)
Augie Fackler
convert: enable deterministic conversion progress bar for svn...
 r22414 scanning [=====> ] 1/7\r (no-eol) (esc)
scanning [===========> ] 2/7\r (no-eol) (esc)
scanning [=================> ] 3/7\r (no-eol) (esc)
scanning [========================> ] 4/7\r (no-eol) (esc)
scanning [==============================> ] 5/7\r (no-eol) (esc)
scanning [====================================> ] 6/7\r (no-eol) (esc)
scanning [===========================================>] 7/7\r (no-eol) (esc)
Mads Kiilerich
tests: drop filtercr.py and use the very explicit '\r (no-eol) (esc)' markup
 r17743 \r (no-eol) (esc)
\r (no-eol) (esc)
converting [ ] 0/7\r (no-eol) (esc)
getting files [=====> ] 1/6\r (no-eol) (esc)
getting files [============> ] 2/6\r (no-eol) (esc)
getting files [==================> ] 3/6\r (no-eol) (esc)
getting files [=========================> ] 4/6\r (no-eol) (esc)
getting files [===============================> ] 5/6\r (no-eol) (esc)
getting files [======================================>] 6/6\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [=====> ] 1/7\r (no-eol) (esc)
scanning paths [ ] 0/1\r (no-eol) (esc)
getting files [======================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [===========> ] 2/7\r (no-eol) (esc)
scanning paths [ ] 0/2\r (no-eol) (esc)
scanning paths [==================> ] 1/2\r (no-eol) (esc)
getting files [========> ] 1/4\r (no-eol) (esc)
getting files [==================> ] 2/4\r (no-eol) (esc)
getting files [============================> ] 3/4\r (no-eol) (esc)
getting files [======================================>] 4/4\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [=================> ] 3/7\r (no-eol) (esc)
scanning paths [ ] 0/1\r (no-eol) (esc)
getting files [======================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [=======================> ] 4/7\r (no-eol) (esc)
scanning paths [ ] 0/1\r (no-eol) (esc)
getting files [======================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [=============================> ] 5/7\r (no-eol) (esc)
Mads Kiilerich
convert: make toposort order stable when multiple orderings are possible...
 r18376 scanning paths [ ] 0/1\r (no-eol) (esc)
Mads Kiilerich
tests: drop filtercr.py and use the very explicit '\r (no-eol) (esc)' markup
 r17743 getting files [===> ] 1/8\r (no-eol) (esc)
getting files [========> ] 2/8\r (no-eol) (esc)
getting files [=============> ] 3/8\r (no-eol) (esc)
getting files [==================> ] 4/8\r (no-eol) (esc)
getting files [=======================> ] 5/8\r (no-eol) (esc)
getting files [============================> ] 6/8\r (no-eol) (esc)
getting files [=================================> ] 7/8\r (no-eol) (esc)
getting files [======================================>] 8/8\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
converting [===================================> ] 6/7\r (no-eol) (esc)
Mads Kiilerich
convert: make toposort order stable when multiple orderings are possible...
 r18376 scanning paths [ ] 0/3\r (no-eol) (esc)
scanning paths [===========> ] 1/3\r (no-eol) (esc)
scanning paths [========================> ] 2/3\r (no-eol) (esc)
Mads Kiilerich
tests: drop filtercr.py and use the very explicit '\r (no-eol) (esc)' markup
 r17743 getting files [===> ] 1/8\r (no-eol) (esc)
getting files [========> ] 2/8\r (no-eol) (esc)
getting files [=============> ] 3/8\r (no-eol) (esc)
getting files [==================> ] 4/8\r (no-eol) (esc)
getting files [=======================> ] 5/8\r (no-eol) (esc)
getting files [============================> ] 6/8\r (no-eol) (esc)
getting files [=================================> ] 7/8\r (no-eol) (esc)
getting files [======================================>] 8/8\r (no-eol) (esc)
\r (no-eol) (esc)
Dan Villiom Podlaski Christiansen
tests: unify test-convert-svn-*
 r12370 initializing destination hg-progress repository
scanning source...
sorting...
converting...
Patrick Mezard
convert/svn: fix changed files list upon directory replacements...
 r13052 6 initial
5 clobber symlink
4 clobber1
3 clobber2
2 adddb
Mads Kiilerich
convert: make toposort order stable when multiple orderings are possible...
 r18376 1 clobberdir
0 branch
Mads Kiilerich
tests: add missing trailing 'cd ..'...
 r16913
$ cd ..