sapling/tests/integration/test-pushrebase-discovery.t

This is the test to cover tricky case in the discovery logic.
Previously Mononoke's known() wireproto method returned `true` for both public and
draft commits. The problem was in that it affects pushrebase. If Mononoke
returns true for a draft commit and client runs `hg push -r HASH --to BOOK`,
then hg client logic may decide to just move a bookmark instead of running the
actual pushrebase.

  $ . "${TEST_FIXTURES}/library.sh"

setup configuration
  $ INFINITEPUSH_ALLOW_WRITES=true setup_common_config
  $ cd "$TESTTMP/mononoke-config"

  $ cat >> repos/repo/server.toml <<CONFIG
  > [[bookmarks]]
  > name="master_bookmark"
  > CONFIG

  $ mkdir -p common/hooks
  $ cat > common/hooks/failing_hook.lua <<CONFIG
  > hook = function (ctx)
  >  return false, "failed"
  > end
  > CONFIG
  $ register_hook failing_hook common/hooks/failing_hook.lua PerChangeset <(
  >   echo 'bypass_pushvar="BYPASS_REVIEW=true"'
  > )


setup common configuration
  $ cd $TESTTMP
  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > ssh="$DUMMYSSH"
  > [extensions]
  > amend=
  > infinitepush=
  > commitcloud=
  > EOF

Setup helpers
  $ log() {
  >   hg log -G -T "{desc} [{phase};rev={rev};{node|short}] {remotenames}" "$@"
  > }

setup repo
  $ hg init repo-hg
  $ cd repo-hg
  $ setup_hg_server
  $ hg debugdrawdag <<EOF
  > C
  > |
  > B
  > |
  > A
  > EOF

create master bookmark

  $ hg bookmark master_bookmark -r tip

blobimport them into Mononoke storage and start Mononoke
  $ cd ..
  $ blobimport repo-hg/.hg repo

start mononoke
  $ mononoke
  $ wait_for_mononoke $TESTTMP/repo

Clone the repo
  $ hgclone_treemanifest ssh://user@dummy/repo-hg repo2 --noupdate --config extensions.remotenames= -q
  $ hgclone_treemanifest ssh://user@dummy/repo-hg repo3 --noupdate --config extensions.remotenames= -q
  $ cd repo2
  $ setup_hg_client
  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > pushrebase =
  > remotenames =
  > EOF
  $ hg up -q 0
  $ echo 1 > 1 && hg addremove -q
  $ hg ci -m 'to push'

Unsuccessful push creates a draft commit on the server
  $ hgmn push -r . --to master_bookmark
  pushing rev 812eca0823f9 to destination ssh://user@dummy/repo bookmark master_bookmark
  searching for changes
  remote: Command failed
  remote:   Error:
  remote:     hooks failed:
  remote:     failing_hook for 812eca0823f97743f8d85cdef5cf338b54cebb01: failed
  remote:   Root cause:
  remote:     ErrorMessage {
  remote:         msg: "hooks failed:\nfailing_hook for 812eca0823f97743f8d85cdef5cf338b54cebb01: failed",
  remote:     }
  abort: stream ended unexpectedly (got 0 bytes, expected 4)
  [255]

In order to hit an edge case the master on the server needs to point to another commit.
Let's make a push
  $ cd ../repo3
  $ setup_hg_client
  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > pushrebase =
  > remotenames =
  > [remotenames]
  > EOF
  $ hg up -q 0
  $ echo 2 > 2 && hg addremove -q
  $ hg ci -m 'to push2'
  $ hgmn push -r . --to master_bookmark --pushvar BYPASS_REVIEW=true -q

Now let's push the same commit again but with a bypass. It should pushrebase,
not move a bookmark
  $ cd ../repo2
  $ hgmn push -r . --to master_bookmark --pushvar BYPASS_REVIEW=true -q
  $ hgmn up -q master_bookmark
  $ log
  @  to push [public;rev=5;a6205c464622] default/master_bookmark
  |
  o  to push2 [public;rev=4;854b7c3bdd1f]
  |
  | o  to push [draft;rev=3;812eca0823f9]
  | |
  o |  C [public;rev=2;26805aba1e60]
  | |
  o |  B [public;rev=1;112478962961]
  |/
  o  A [public;rev=0;426bada5c675]
  
The same procedure, but with commit cloud commit
  $ hg up -q 0
  $ echo commitcloud > commitcloud && hg addremove -q
  $ hg ci -m commitcloud
  $ hgmn cloud backup -q

Move master again
  $ cd ../repo3
  $ hg up -q 0
  $ echo 3 > 3 && hg addremove -q
  $ hg ci -m 'to push3'
  $ hgmn push -r . --to master_bookmark --pushvar BYPASS_REVIEW=true -q

Now let's push commit cloud commit. Again, it should do pushrebase
  $ cd ../repo2
  $ hgmn push -r . --to master_bookmark --pushvar BYPASS_REVIEW=true -q
  $ hgmn up -q master_bookmark
  $ log
  @  commitcloud [public;rev=8;3308f3bd8048] default/master_bookmark
  |
  o  to push3 [public;rev=7;c3f020572849]
  |
  | o  commitcloud [draft;rev=6;17f29bea0858]
  | |
  o |  to push [public;rev=5;a6205c464622]
  | |
  o |  to push2 [public;rev=4;854b7c3bdd1f]
  | |
  | | o  to push [draft;rev=3;812eca0823f9]
  | |/
  o |  C [public;rev=2;26805aba1e60]
  | |
  o |  B [public;rev=1;112478962961]
  |/
  o  A [public;rev=0;426bada5c675]