tests/test-double-merge.t

merge: don't report progress for dr/rd actions

It is easier to reason about certain algorithms in terms of a
file->action mapping than the current action->list-of-files. Bid merge
is already written this way (but with a list of actions per file), and
largefiles' overridecalculateupdates() will also benefit. However,
that requires us to have at most one action per file. That requirement
is currently violated by 'dr' (divergent rename) and 'rd' (rename and
delete) actions, which can exist for the same file as some other
action.

These actions are only used for displaying warnings to the user; they
don't change anything in the working copy or the dirstate. In this
way, they are similar to the 'k' (keep) action. However, they are even
less action-like than 'k' is: 'k' at least describes what to do with
the file ("do nothing"), while 'dr' and 'rd' or only annotations for
files for which there may exist other, "real" actions.

As a first step towards separating these acitons out, stop including
them in the progress output, just like we already exclude the 'k'
action.

  $ hg init repo
  $ cd repo

  $ echo line 1 > foo
  $ hg ci -qAm 'add foo'

copy foo to bar and change both files
  $ hg cp foo bar
  $ echo line 2-1 >> foo
  $ echo line 2-2 >> bar
  $ hg ci -m 'cp foo bar; change both'

in another branch, change foo in a way that doesn't conflict with
the other changes
  $ hg up -qC 0
  $ echo line 0 > foo
  $ hg cat foo >> foo
  $ hg ci -m 'change foo'
  created new head

we get conflicts that shouldn't be there
  $ hg merge -P
  changeset:   1:484bf6903104
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     cp foo bar; change both
  
  $ hg merge --debug
    searching for copies back to rev 1
    unmatched files in other:
     bar
    all copies found (* = to merge, ! = divergent, % = renamed and deleted):
     src: 'foo' -> dst: 'bar' *
    checking for directory renames
  resolving manifests
   branchmerge: True, force: False, partial: False
   ancestor: e6dc8efe11cc, local: 6a0df1dad128+, remote: 484bf6903104
   preserving foo for resolve of bar
   preserving foo for resolve of foo
   bar: remote copied from foo -> m
  updating: bar 1/2 files (50.00%)
  picked tool 'internal:merge' for bar (binary False symlink False)
  merging foo and bar to bar
  my bar@6a0df1dad128+ other bar@484bf6903104 ancestor foo@e6dc8efe11cc
   premerge successful
   foo: versions differ -> m
  updating: foo 2/2 files (100.00%)
  picked tool 'internal:merge' for foo (binary False symlink False)
  merging foo
  my foo@6a0df1dad128+ other foo@484bf6903104 ancestor foo@e6dc8efe11cc
   premerge successful
  0 files updated, 2 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

contents of foo
  $ cat foo
  line 0
  line 1
  line 2-1

contents of bar
  $ cat bar
  line 0
  line 1
  line 2-2

  $ cd ..