This test makes sure that we don't mark a file as merged with its ancestor

when we do a merge.

  $ cat <<EOF > merge

  > import sys, os

  > print "merging for", os.path.basename(sys.argv[1])

  > EOF

  $ HGMERGE="python ../merge"; export HGMERGE

Creating base:

  $ hg init a

  $ cd a

  $ echo 1 > foo

  $ echo 1 > bar

  $ echo 1 > baz

  $ echo 1 > quux

  $ hg add foo bar baz quux

  $ hg commit -m "base"

  $ cd ..

  $ hg clone a b

  updating to branch default

  4 files updated, 0 files merged, 0 files removed, 0 files unresolved

Creating branch a:

  $ cd a

  $ echo 2a > foo

  $ echo 2a > bar

  $ hg commit -m "branch a"

Creating branch b:

  $ cd ..

  $ cd b

  $ echo 2b > foo

  $ echo 2b > baz

  $ hg commit -m "branch b"

We shouldn't have anything but n state here:

  $ hg debugstate --nodates | grep -v "^n"

  [1]

Merging:

  $ hg pull ../a

  pulling from ../a

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 2 changes to 2 files (+1 heads)

  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg merge -v

  resolving manifests

  getting bar

  merging foo

  merging for foo

  1 files updated, 1 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ echo 2m > foo

  $ echo 2b > baz

  $ echo new > quux

We shouldn't have anything but foo in merge state here:

  $ hg debugstate --nodates | grep "^m"

  m 644          3 foo

  $ hg ci -m "merge"

main: we should have a merge here:

  $ hg debugindex --changelog

log should show foo and quux changed:

  $ hg log -v -r tip

  changeset:   3:d8a521142a3c

  tag:         tip

  parent:      1:f6718a9cb7f3

  parent:      2:bdd988058d16

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  files:       foo quux

  description:

  merge

foo: we should have a merge here:

  $ hg debugindex foo

bar: we should not have a merge here:

  $ hg debugindex bar

baz: we should not have a merge here:

  $ hg debugindex baz

quux: we should not have a merge here:

  $ hg debugindex quux

Manifest entries should match tips of all files:

  $ hg manifest --debug

  33d1fb69067a0139622a3fa3b7ba1cdb1367972e 644   bar

  2ffeddde1b65b4827f6746174a145474129fa2ce 644   baz

  aa27919ee4303cfd575e1fb932dd64d75aa08be4 644   foo

  6128c0f33108e8cfbb4e0824d13ae48b466d7280 644   quux

Everything should be clean now:

  $ hg status

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  4 files, 4 changesets, 10 total revisions

  $ cd ..