wireprotov2: client support for following content redirects
And with the server actually sending content redirects, it is finally
time to implement client support for following them!
When a redirect response is seen, we wait until all data for that
request has been received (it should be nearly immediate since no
data is expected to follow the redirect message). Then we use
a URL opener to make a request. We stuff that response into the
client handler and construct a new response object to track it.
When readdata() is called for servicing requests, we attempt to
read data from the first redirected response. During data reading,
data is processed similarly to as if it came from a frame payload.
The existing test for the functionality demonstrates the client
transparently following the redirect and obtaining the command
response data from an alternate URL!
There is still plenty of work to do here, including shoring up
testing. I'm not convinced things will work in the presence of
multiple redirect responses. And we don't yet implement support
for integrity verification or configuring server certificates
to validate the connection. But it's a start. And it should enable
us to start experimenting with "real" caches.
Differential Revision: https://phab.mercurial-scm.org/D4778
============================================
Testing obsolescence markers push: Cases D.3
============================================
Mercurial pushes obsolescences markers relevant to the "pushed-set", the set of
all changesets that requested to be "in sync" after the push (even if they are
already on both side).
This test belongs to a series of tests checking such set is properly computed
and applied. This does not tests "obsmarkers" discovery capabilities.
Category D: Partial Information Case
TestCase 3: missing prune target (prune not in "pushed set")
D.3 missing prune target (prune not in "pushed set")
====================================================
.. {{{
.. A ø⇠✕ A'
.. | |
.. | ○ B
.. |/
.. ● O
.. }}}
..
.. Marker exist from:
..
.. * `A ø⇠o A'`
.. * A' (prune)
..
.. Command runs:
..
.. * hg push
..
.. Expected exclude:
..
.. * `A ø⇠o A'`
.. * A' (prune)
Setup
-----
$ . $TESTDIR/testlib/exchange-obsmarker-util.sh
initial
$ setuprepos D.3
creating test repo for test case D.3
- pulldest
- main
- pushdest
cd into `main` and proceed with env setup
$ cd main
$ mkcommit A0
$ hg up -q 0
$ mkcommit B
created new head
$ mkcommit A1
$ hg debugobsolete `getid 'desc(A0)'` `getid 'desc(A1)'`
obsoleted 1 changesets
$ hg prune -d '0 0' .
obsoleted 1 changesets
$ hg strip --hidden -q 'desc(A1)'
$ hg log -G --hidden
@ 35b183996678 (draft): B
|
| x 28b51eb45704 (draft): A0
|/
o a9bdc8b26820 (public): O
$ inspect_obsmarkers
obsstore content
================
28b51eb45704506b5c603decd6bf7ac5e0f6a52f 6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 {35b1839966785d5703a01607229eea932db42f87} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
$ cd ..
$ cd ..
Actual Test
-----------
$ dotest D.3 O
## Running testcase D.3
# testing echange of "O" (a9bdc8b26820)
## initial state
# obstore: main
28b51eb45704506b5c603decd6bf7ac5e0f6a52f 6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 {35b1839966785d5703a01607229eea932db42f87} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest
## pushing "O" from main to pushdest
pushing to pushdest
searching for changes
no changes found
## post push state
# obstore: main
28b51eb45704506b5c603decd6bf7ac5e0f6a52f 6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 {35b1839966785d5703a01607229eea932db42f87} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest
## pulling "a9bdc8b26820" from main into pulldest
pulling from main
no changes found
## post pull state
# obstore: main
28b51eb45704506b5c603decd6bf7ac5e0f6a52f 6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
6aa67a7b4baa6fb41b06aed38d5b1201436546e2 0 {35b1839966785d5703a01607229eea932db42f87} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest