view tests/test-topic-flow-reject-untopiced.t @ 5777:c5dfbbe4363d

evolve: when relocating, optionally first try to do it using in-memory merge

This patch adds a config option to let run evolve's relocation step
using in-memory merge. It is disabled by default. When the option is
on, the relocation is first attempted in memory. If that fails because
of merge conflicts, it retries that commit in the working copy.

There are a few reasons that I made it configurable. The most
important one is that the precommit hook won't trigger when using
in-memory merge. Another reason is that it lets us roll out the
feature slowly to our users at Google.

For now, we also update the working copy after creating the commit (in the
successful case, when there are no merge conflicts). The next patch will make it
so we don't do that update.

Because of the unnecessary working-copy update, this patch doesn't
provide any benefit on its own. Evolving 29 commits that each change
one line in the hg slows down from ~4.5s to ~4.8s when the config
option is on.

I've added `#testcases inmemory ondisk` to select `.t` files. Almost
all differences are because of the new "hit merge conflicts" message
and retrying the merge. There's also one difference in
`test-stabilize-order.t` caused by the different order of working copy
updates (we now update the working copy at the end).

Testing the config option for rejecting draft changeset without topic
The config option is "experimental.topic-mode.server"

  $ . "$TESTDIR/testlib/topic_setup.sh"

Creating a server repo

  $ hg init server
  $ cd server
  $ cat <<EOF >>.hg/hgrc
  > [phases]
  > publish=False
  > [experimental]
  > topic-mode.server = enforce
  > EOF

  $ hg topic server
  marked working directory as topic: server
  $ for ch in a b c; do echo foo > $ch; hg ci -Aqm "Added "$ch; done
  $ hg ph -p 0

  $ hg log -G -T "{rev}:{node|short}\n{desc}  {topics}"
  @  2:a7b96f87a214
  |  Added c  server
  o  1:d6a8197e192a
  |  Added b  server
  o  0:49a3f206c9ae
     Added a

  $ cd ..

Creating a client repo

  $ hg clone server client
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd client
  $ hg up server
  switching to topic server
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -G -T "{rev}:{node|short}\n{desc}  {topics}"
  @  2:a7b96f87a214
  |  Added c  server
  o  1:d6a8197e192a
  |  Added b  server
  o  0:49a3f206c9ae
     Added a

  $ hg topic
   * server (2 changesets)

Create a changeset without topic

  $ hg topic --clear
  $ echo foo > d
  $ hg ci -Aqm "added d"

  $ hg log -G -T "{rev}:{node|short}\n{desc}  {topics}"
  @  3:4e8b0e0237c6
  |  added d
  o  2:a7b96f87a214
  |  Added c  server
  o  1:d6a8197e192a
  |  Added b  server
  o  0:49a3f206c9ae
     Added a

Push a draft changeset without topic

  $ hg push ../server  --new-branch
  pushing to ../server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  transaction abort!
  rollback completed
  abort: rejecting draft changesets: 4e8b0e0237
  [255]

  $ hg push ../server -f
  pushing to ../server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  transaction abort!
  rollback completed
  abort: rejecting draft changesets: 4e8b0e0237
  [255]

Grow the stack with more changesets having topic

  $ hg topic client
  marked working directory as topic: client
  $ for ch in e f g; do echo foo > $ch; hg ci -Aqm "Added "$ch; done;

  $ hg log -G -T "{rev}:{node|short}\n{desc}  {topics}"
  @  6:42c4ac86452a
  |  Added g  client
  o  5:3dc456efb491
  |  Added f  client
  o  4:18a516babc60
  |  Added e  client
  o  3:4e8b0e0237c6
  |  added d
  o  2:a7b96f87a214
  |  Added c  server
  o  1:d6a8197e192a
  |  Added b  server
  o  0:49a3f206c9ae
     Added a

Pushing multiple changeset with some having topics and some not

  $ hg push ../server --new-branch
  pushing to ../server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  transaction abort!
  rollback completed
  abort: rejecting draft changesets: 4e8b0e0237
  [255]

Testing case when both experimental.topic-mode.server and
experimental.topic.publish-bare-branch are set

  $ cd ../server
  $ echo 'topic.publish-bare-branch=True' >> .hg/hgrc
  $ cd ../client
  $ hg push ../server --new-branch
  pushing to ../server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  transaction abort!
  rollback completed
  abort: rejecting draft changesets: 4e8b0e0237
  [255]

Turning the changeset public and testing push

  $ hg phase -r 3 -p
  $ hg log -G -T "{rev}:{node|short}\n{desc}  {topics}"
  @  6:42c4ac86452a
  |  Added g  client
  o  5:3dc456efb491
  |  Added f  client
  o  4:18a516babc60
  |  Added e  client
  o  3:4e8b0e0237c6
  |  added d
  o  2:a7b96f87a214
  |  Added c
  o  1:d6a8197e192a
  |  Added b
  o  0:49a3f206c9ae
     Added a

  $ hg push ../server
  pushing to ../server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  active topic 'server' is now empty