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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-basic.t
103 lines | 1.9 KiB | text/troff | Tads3Lexer
Matt Mackall
tests: unify test-basic
r11742 Create a repository:
Gregory Szorc
tests: conditionalize tests based on presence of custom extensions...
r37360 #if no-extraextensions
Matt Mackall
config: make repo optional again
r20608 $ hg config
Pierre-Yves David
devel: rename 'all' to 'all-warnings' (BC)...
r25290 devel.all-warnings=true
devel: activate default-date in tests...
r32410 devel.default-date=0 0
FUJIWARA Katsunori
tests: add extra output for fsmonitor at showconfig
r33426 extensions.fsmonitor= (fsmonitor !)
Matt Harbison
tests: remove (glob) annotations that were only for '\' matches...
r35394 largefiles.usercache=$TESTTMP/.cache/largefiles
lfs.usercache=$TESTTMP/.cache/lfs
Matt Mackall
config: make repo optional again
r20608 ui.slash=True
ui.interactive=False
FUJIWARA Katsunori
filemerge: use 'basic' as the default of '[ui] mergemarkers' for safety...
r21918 ui.mergemarkers=detailed
Yuya Nishihara
ui: separate option to show prompt echo, enabled only in tests (issue4417)...
r23053 ui.promptecho=True
Jun Wu
runtests: set web.address to localhost...
r31009 web.address=localhost
Jun Wu
runtests: always set web.ipv6...
r31010 web\.ipv6=(?:True|False) (re)
Gregory Szorc
hgweb: allow defining Server response header for HTTP server...
r37027 web.server-header=testing stub value
Gregory Szorc
tests: conditionalize tests based on presence of custom extensions...
r37360 #endif
Martin Geisler
tests: remove redundant mkdir...
r13956 $ hg init t
Matt Mackall
tests: unify test-basic
r11742 $ cd t
Bryan O'Sullivan
stdio: add Linux-specific tests for error checking
r31964 Prepare a changeset:
Matt Mackall
tests: unify test-basic
r11742
$ echo a > a
$ hg add a
Bryan O'Sullivan
stdio: add Linux-specific tests for error checking
r31964
$ hg status
A a
Writes to stdio succeed and fail appropriately
#if devfull
$ hg status 2>/dev/full
A a
$ hg status >/dev/full
abort: No space left on device
[255]
Saurabh Singh
test-basic: make test compatible with chg...
r34449 #endif
Bryan O'Sullivan
stdio: add Linux-specific tests for error checking
r31964
Gregory Szorc
dispatch: handle IOError when writing to stderr...
r35671 #if devfull
Saurabh Singh
test-basic: make test compatible with chg...
r34449 $ hg status >/dev/full 2>&1
[255]
$ hg status ENOENT 2>/dev/full
[255]
#endif
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg commit -m test
Matt Mackall
tests: unify test-basic
r11742
This command is ancient:
$ hg history
Martin Geisler
tests: remove unneeded -d flags...
r12156 changeset: 0:acb14030fe0a
Matt Mackall
tests: unify test-basic
r11742 tag: tip
user: test
Martin Geisler
tests: remove unneeded -d flags...
r12156 date: Thu Jan 01 00:00:00 1970 +0000
Matt Mackall
tests: unify test-basic
r11742 summary: test
Mark Drago
commands.update() now works properly with a revision of 0...
r13568 Verify that updating to revision 0 via commands.update() works properly
$ cat <<EOF > update_to_rev0.py
> from mercurial import ui, hg, commands
Yuya Nishihara
ui: factor out ui.load() to create a ui without loading configs (API)...
r30559 > myui = ui.ui.load()
Yuya Nishihara
py3: make test-basic.t pass on Python 3
r36656 > repo = hg.repository(myui, path=b'.')
Martin von Zweigbergk
tests: pass "rev" argument to commands.update() as string...
r38499 > commands.update(myui, repo, rev=b"0")
Mark Drago
commands.update() now works properly with a revision of 0...
r13568 > EOF
$ hg up null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
Augie Fackler
cleanup: use $PYTHON to run python in many more tests...
r32940 $ $PYTHON ./update_to_rev0.py
Mark Drago
commands.update() now works properly with a revision of 0...
r13568 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg identify -n
0
Mads Kiilerich
check-code: fix check for trailing whitespace on empty lines...
r17346
Mark Drago
commands.update() now works properly with a revision of 0...
r13568
Matt Mackall
tests: unify test-basic
r11742 Poke around at hashes:
$ hg manifest --debug
b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644 a
$ hg cat a
a
Verify should succeed:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
Meirambek Omyrzak
verify: make output less confusing (issue5924)...
r39525 checked 1 changesets with 1 changes to 1 files
Matt Mackall
tests: unify test-basic
r11742
Yuya Nishihara
templatekw: add {reporoot} keyword...
r36261 Repository root:
$ hg root
$TESTTMP/t
$ hg log -l1 -T '{reporoot}\n'
$TESTTMP/t
Matt Mackall
tests: unify test-basic
r11742 At the end...
Mads Kiilerich
tests: add missing trailing 'cd ..'...
r16913
$ cd ..