$ echo "[extensions]" >> $HGRCPATH

  $ echo "mq=" >> $HGRCPATH

  $ tipparents() {

  > hg parents --template "{rev}:{node|short} {desc|firstline}\n" -r tip

  > }

Test import and merge diffs

  $ hg init repo

  $ cd repo

  $ echo a > a

  $ hg ci -Am adda

  adding a

  $ echo a >> a

  $ hg ci -m changea

  $ echo c > c

  $ hg ci -Am addc

  adding c

  $ hg up 0

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

  $ echo b > b

  $ hg ci -Am addb

  adding b

  created new head

  $ hg up 1

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

  $ hg merge 3

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

  (branch merge, don't forget to commit)

  $ hg ci -m merge

  $ hg export . > ../merge.diff

  $ grep -v '^merge$' ../merge.diff > ../merge.nomsg.diff

  $ cd ..

  $ hg clone -r2 repo repo2

  adding changesets

  adding manifests

  adding file changes

  added 3 changesets with 3 changes to 2 files

  new changesets 07f494440405:890ecaa90481

  updating to branch default

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd repo2

  $ hg pull -r3 ../repo

  pulling from ../repo

  searching for changes

  adding changesets

  adding manifests

  adding file changes

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

  new changesets 102a90ea7b4a

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

Test without --exact and diff.p1 == workingdir.p1

  $ hg up 1

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

  $ cat > $TESTTMP/editor.sh <<EOF

  > env | grep HGEDITFORM

  > echo merge > \$1

  > EOF

  $ HGEDITOR="sh $TESTTMP/editor.sh" hg import --edit ../merge.nomsg.diff

  applying ../merge.nomsg.diff

  HGEDITFORM=import.normal.merge

  $ tipparents

  1:540395c44225 changea

  3:102a90ea7b4a addb

  $ hg strip --no-backup tip

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

Test without --exact and diff.p1 != workingdir.p1

  $ hg up 2

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

  $ hg import ../merge.diff

  applying ../merge.diff

  warning: import the patch as a normal revision

  (use --exact to import the patch as a merge)

  $ tipparents

  2:890ecaa90481 addc

  $ hg strip --no-backup tip

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

Test with --exact

  $ hg import --exact ../merge.diff

  applying ../merge.diff

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

  $ tipparents

  1:540395c44225 changea

  3:102a90ea7b4a addb

  $ hg strip --no-backup tip

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

Test with --bypass and diff.p1 == workingdir.p1

  $ hg up 1

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

  $ hg import --bypass ../merge.diff

  applying ../merge.diff

  $ tipparents

  1:540395c44225 changea

  3:102a90ea7b4a addb

  $ hg strip --no-backup tip

Test with --bypass and diff.p1 != workingdir.p1

  $ hg up 2

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

  $ hg import --bypass ../merge.diff

  applying ../merge.diff

  warning: import the patch as a normal revision

  (use --exact to import the patch as a merge)

  $ tipparents

  2:890ecaa90481 addc

  $ hg strip --no-backup tip

Test with --bypass and --exact

  $ hg import --bypass --exact ../merge.diff

  applying ../merge.diff

  $ tipparents

  1:540395c44225 changea

  3:102a90ea7b4a addb

  $ hg strip --no-backup tip

  $ cd ..

Test that --exact on a bad header doesn't corrupt the repo (issue3616)

  $ hg init repo3

  $ cd repo3

  $ echo a>a

  $ hg ci -Aqm0

  $ echo a>>a

  $ hg ci -m1

  $ echo a>>a

  $ hg ci -m2

  $ echo a>a

  $ echo b>>a

  $ echo a>>a

  $ hg ci -m3

  $ hg export 2 | head -7 > ../a.patch

  $ hg export tip > out

  >>> apatch = open("../a.patch", "ab")

  >>> apatch.write(b"".join(open("out", 'rb').readlines()[7:])) and None

  $ cd ..

  $ hg clone -qr0 repo3 repo3-clone

  $ cd repo3-clone

  $ hg pull -qr1 ../repo3

  $ hg import --exact ../a.patch

  applying ../a.patch

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

  patching file a

  Hunk #1 succeeded at 1 with fuzz 1 (offset -1 lines).

  transaction abort!

  rollback completed

  abort: patch is damaged or loses information

  [255]

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checked 2 changesets with 2 changes to 1 files