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wireprotov2: define and implement "manifestdata" command...
wireprotov2: define and implement "manifestdata" command The added command can be used for obtaining manifest data. Given a manifest path and set of manifest nodes, data about manifests can be retrieved. Unlike changeset data, we wish to emit deltas to describe manifest revisions. So the command uses the relatively new API for building delta requests and emitting them. The code calls into deltaparent(), which I'm not very keen of. There's still work to be done in delta generation land so implementation details of storage (e.g. exactly one delta is stored/available) don't creep into higher levels. But we can worry about this later (there is already a TODO on imanifestorage tracking this). On the subject of parent deltas, the server assumes parent revisions exist on the receiving end. This is obviously wrong for shallow clone. I've added TODOs to add a mechanism to the command to allow clients to specify desired behavior. This shouldn't be too difficult to implement. Another big change is that the client must explicitly request manifest nodes to retrieve. This is a major departure from "getbundle," where the server derives relevant manifests as it iterates changesets and sends them automatically. As implemented, the client must transmit each requested node to the server. At 20 bytes per node, we're looking at 2 MB per 100,000 nodes. Plus wire encoding overhead. This isn't ideal for clients with limited upload bandwidth. I plan to address this in the future by allowing alternate mechanisms for defining the revisions to retrieve. One idea is to define a range of changeset revisions whose manifest revisions to retrieve (similar to how "changesetdata" works). We almost certainly want an API to look up an individual manifest by node. And that's where I've chosen to start with the implementation. Again, a theme of this early exchangev2 work is I want to start by building primitives for accessing raw repository data first and see how far we can get with those before we need more complexity. Differential Revision: https://phab.mercurial-scm.org/D4488

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test-init.t
263 lines | 6.7 KiB | text/troff | Tads3Lexer
This test tries to exercise the ssh functionality with a dummy script
$ checknewrepo()
> {
> name=$1
> if [ -d "$name"/.hg/store ]; then
> echo store created
> fi
> if [ -f "$name"/.hg/00changelog.i ]; then
> echo 00changelog.i created
> fi
> cat "$name"/.hg/requires
> }
creating 'local'
$ hg init local
$ checknewrepo local
store created
00changelog.i created
dotencode
fncache
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
$ echo this > local/foo
$ hg ci --cwd local -A -m "init"
adding foo
test custom revlog chunk cache sizes
$ hg --config format.chunkcachesize=0 log -R local -pv
abort: revlog chunk cache size 0 is not greater than 0!
[255]
$ hg --config format.chunkcachesize=1023 log -R local -pv
abort: revlog chunk cache size 1023 is not a power of 2!
[255]
$ hg --config format.chunkcachesize=1024 log -R local -pv
changeset: 0:08b9e9f63b32
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: foo
description:
init
diff -r 000000000000 -r 08b9e9f63b32 foo
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@
+this
creating repo with format.usestore=false
$ hg --config format.usestore=false init old
$ checknewrepo old
generaldelta
revlogv1
testonly-simplestore (reposimplestore !)
creating repo with format.usefncache=false
$ hg --config format.usefncache=false init old2
$ checknewrepo old2
store created
00changelog.i created
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
creating repo with format.dotencode=false
$ hg --config format.dotencode=false init old3
$ checknewrepo old3
store created
00changelog.i created
fncache
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
creating repo with format.dotencode=false
$ hg --config format.generaldelta=false --config format.usegeneraldelta=false init old4
$ checknewrepo old4
store created
00changelog.i created
dotencode
fncache
revlogv1
store
testonly-simplestore (reposimplestore !)
test failure
$ hg init local
abort: repository local already exists!
[255]
init+push to remote2
$ hg init -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote2
$ hg incoming -R remote2 local
comparing with local
changeset: 0:08b9e9f63b32
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: init
$ hg push -R local -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote2
pushing to ssh://user@dummy/remote2
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
clone to remote1
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote1
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
The largefiles extension doesn't crash
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remotelf --config extensions.largefiles=
The fsmonitor extension is incompatible with the largefiles extension and has been disabled. (fsmonitor !)
The fsmonitor extension is incompatible with the largefiles extension and has been disabled. (fsmonitor !)
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
init to existing repo
$ hg init -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote1
abort: repository remote1 already exists!
abort: could not create remote repo!
[255]
clone to existing repo
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote1
abort: repository remote1 already exists!
abort: could not create remote repo!
[255]
output of dummyssh
$ cat dummylog
Got arguments 1:user@dummy 2:hg init remote2
Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio
Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio
Got arguments 1:user@dummy 2:hg init remote1
Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio
Got arguments 1:user@dummy 2:hg init remotelf
Got arguments 1:user@dummy 2:hg -R remotelf serve --stdio
Got arguments 1:user@dummy 2:hg init remote1
Got arguments 1:user@dummy 2:hg init remote1
comparing repositories
$ hg tip -q -R local
0:08b9e9f63b32
$ hg tip -q -R remote1
0:08b9e9f63b32
$ hg tip -q -R remote2
0:08b9e9f63b32
check names for repositories (clashes with URL schemes, special chars)
$ for i in bundle file hg http https old-http ssh static-http "with space"; do
> printf "hg init \"$i\"... "
> hg init "$i"
> test -d "$i" -a -d "$i/.hg" && echo "ok" || echo "failed"
> done
hg init "bundle"... ok
hg init "file"... ok
hg init "hg"... ok
hg init "http"... ok
hg init "https"... ok
hg init "old-http"... ok
hg init "ssh"... ok
hg init "static-http"... ok
hg init "with space"... ok
#if eol-in-paths
/* " " is not a valid name for a directory on Windows */
$ hg init " "
$ test -d " "
$ test -d " /.hg"
#endif
creating 'local/sub/repo'
$ hg init local/sub/repo
$ checknewrepo local/sub/repo
store created
00changelog.i created
dotencode
fncache
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
prepare test of init of url configured from paths
$ echo '[paths]' >> $HGRCPATH
$ echo "somewhere = `pwd`/url from paths" >> $HGRCPATH
$ echo "elsewhere = `pwd`/another paths url" >> $HGRCPATH
init should (for consistency with clone) expand the url
$ hg init somewhere
$ checknewrepo "url from paths"
store created
00changelog.i created
dotencode
fncache
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
verify that clone also expand urls
$ hg clone somewhere elsewhere
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ checknewrepo "another paths url"
store created
00changelog.i created
dotencode
fncache
generaldelta
revlogv1
store
testonly-simplestore (reposimplestore !)
clone bookmarks
$ hg -R local bookmark test
$ hg -R local bookmarks
* test 0:08b9e9f63b32
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote-bookmarks
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
exporting bookmark test
$ hg -R remote-bookmarks bookmarks
test 0:08b9e9f63b32