test that a commit clears the merge state.

  $ hg init repo

  $ cd repo

  $ echo foo > file1

  $ echo foo > file2

  $ hg commit -Am 'add files'

  adding file1

  adding file2

  $ echo bar >> file1

  $ echo bar >> file2

  $ hg commit -Am 'append bar to files'

create a second head with conflicting edits

  $ hg up -C 0

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

  $ echo baz >> file1

  $ echo baz >> file2

  $ hg commit -Am 'append baz to files'

  created new head

create a third head with no conflicting edits

  $ hg up -qC 0

  $ echo foo > file3

  $ hg commit -Am 'add non-conflicting file'

  adding file3

  created new head

failing merge

  $ hg up -qC 2

  $ hg merge --tool=internal:fail 1

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

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

resolve -l should contain unresolved entries

  $ hg resolve -l

  U file1

  U file2

  $ hg resolve -l --no-status

  file1

  file2

resolving an unknown path should emit a warning, but not for -l

  $ hg resolve -m does-not-exist

  arguments do not match paths that need resolving

  $ hg resolve -l does-not-exist

tell users how they could have used resolve

  $ mkdir nested

  $ cd nested

  $ hg resolve -m file1

  arguments do not match paths that need resolving

  (try: hg resolve -m path:file1)

  $ hg resolve -m file1 filez

  arguments do not match paths that need resolving

  (try: hg resolve -m path:file1 path:filez)

  $ hg resolve -m path:file1 path:filez

  $ hg resolve -l

  R file1

  U file2

  $ hg resolve -m filez file2

  arguments do not match paths that need resolving

  (try: hg resolve -m path:filez path:file2)

  $ hg resolve -m path:filez path:file2

  (no more unresolved files)

  $ hg resolve -l

  R file1

  R file2

cleanup

  $ hg resolve -u

  $ cd ..

  $ rmdir nested

don't allow marking or unmarking driver-resolved files

  $ cat > $TESTTMP/markdriver.py << EOF

  > '''mark and unmark files as driver-resolved'''

  > from mercurial import (

  >    merge,

  >    pycompat,

  >    registrar,

  >    scmutil,

  > )

  > cmdtable = {}

  > command = registrar.command(cmdtable)

  > @command(b'markdriver',

  >   [(b'u', b'unmark', None, b'')],

  >   b'FILE...')

  > def markdriver(ui, repo, *pats, **opts):

  >     wlock = repo.wlock()

  >     opts = pycompat.byteskwargs(opts)

  >     try:

  >         ms = merge.mergestate.read(repo)

  >         m = scmutil.match(repo[None], pats, opts)

  >         for f in ms:

  >             if not m(f):

  >                 continue

  >             if not opts[b'unmark']:

  >                 ms.mark(f, b'd')

  >             else:

  >                 ms.mark(f, b'u')

  >         ms.commit()

  >     finally:

  >         wlock.release()

  > EOF

  $ hg --config extensions.markdriver=$TESTTMP/markdriver.py markdriver file1

  $ hg resolve --list

  D file1

  U file2

  $ hg resolve --mark file1

  not marking file1 as it is driver-resolved

this should not print out file1

  $ hg resolve --mark --all

  (no more unresolved files -- run "hg resolve --all" to conclude)

  $ hg resolve --mark 'glob:file*'

  (no more unresolved files -- run "hg resolve --all" to conclude)

  $ hg resolve --list

  D file1

  R file2

  $ hg resolve --unmark file1

  not unmarking file1 as it is driver-resolved

  (no more unresolved files -- run "hg resolve --all" to conclude)

  $ hg resolve --unmark --all

  $ hg resolve --list

  D file1

  U file2

  $ hg --config extensions.markdriver=$TESTTMP/markdriver.py markdriver --unmark file1

  $ hg resolve --list

  U file1

  U file2

resolve the failure

  $ echo resolved > file1

  $ hg resolve -m file1

resolve -l should show resolved file as resolved

  $ hg resolve -l

  R file1

  U file2

  $ hg resolve -l -Tjson

  [

   {

    "path": "file1",

    "status": "R"

   },

   {

    "path": "file2",

    "status": "U"

   }

  ]

  $ hg resolve -l -T '{path} {status} {p1rev} {p2rev}\n'

  file1 R 2 1

  file2 U 2 1

resolve -m without paths should mark all resolved

  $ hg resolve -m

  (no more unresolved files)

  $ hg commit -m 'resolved'

resolve -l should be empty after commit

  $ hg resolve -l

  $ hg resolve -l -Tjson

  [

  ]

resolve --all should abort when no merge in progress

  $ hg resolve --all

  abort: resolve command not applicable when not merging

  [255]

resolve -m should abort when no merge in progress

  $ hg resolve -m

  abort: resolve command not applicable when not merging

  [255]

can not update or merge when there are unresolved conflicts

  $ hg up -qC 0

  $ echo quux >> file1

  $ hg up 1

  merging file1

  warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')

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

  use 'hg resolve' to retry unresolved file merges

  [1]

  $ hg up 0

  abort: outstanding merge conflicts

  [255]

  $ hg merge 2

  abort: outstanding merge conflicts

  [255]

  $ hg merge --force 2

  abort: outstanding merge conflicts

  [255]

set up conflict-free merge

  $ hg up -qC 3

  $ hg merge 1

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

  (branch merge, don't forget to commit)

resolve --all should do nothing in merge without conflicts

  $ hg resolve --all

  (no more unresolved files)

resolve -m should do nothing in merge without conflicts

  $ hg resolve -m

  (no more unresolved files)

get back to conflicting state

  $ hg up -qC 2

  $ hg merge --tool=internal:fail 1

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

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

resolve without arguments should suggest --all

  $ hg resolve

  abort: no files or directories specified

  (use --all to re-merge all unresolved files)

  [255]

resolve --all should re-merge all unresolved files

  $ hg resolve --all

  merging file1

  merging file2

  warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')

  warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')

  [1]

  $ cat file1.orig

  foo

  baz

  $ cat file2.orig

  foo

  baz

.orig files should exists where specified

  $ hg resolve --all --verbose --config 'ui.origbackuppath=.hg/origbackups'

  merging file1

  creating directory: $TESTTMP/repo/.hg/origbackups

  merging file2

  warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')

  warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')

  [1]

  $ ls .hg/origbackups

  file1

  file2

  $ grep '<<<' file1 > /dev/null

  $ grep '<<<' file2 > /dev/null

resolve <file> should re-merge file

  $ echo resolved > file1

  $ hg resolve -q file1

  warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')

  [1]

  $ grep '<<<' file1 > /dev/null

test .orig behavior with resolve

  $ hg resolve -q file1 --tool "sh -c 'f --dump \"$TESTTMP/repo/file1.orig\"'"

  $TESTTMP/repo/file1.orig:

  >>>

  foo

  baz

  <<<

resolve <file> should do nothing if 'file' was marked resolved

  $ echo resolved > file1

  $ hg resolve -m file1

  $ hg resolve -q file1

  $ cat file1

  resolved

insert unsupported advisory merge record

  $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -x

  $ hg debugmergestate

  * version 2 records

  local: 57653b9f834a4493f7240b0681efcb9ae7cab745

  other: dc77451844e37f03f5c559e3b8529b2b48d381d1

  labels:

    local: working copy

    other: merge rev

  unrecognized entry: x	advisory record

  file extras: file1 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)

  file: file1 (record type "F", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)

    local path: file1 (flags "")

    ancestor path: file1 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)

    other path: file1 (node 6f4310b00b9a147241b071a60c28a650827fb03d)

  file extras: file2 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)

  file: file2 (record type "F", state "u", hash cb99b709a1978bd205ab9dfd4c5aaa1fc91c7523)

    local path: file2 (flags "")

    ancestor path: file2 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)

    other path: file2 (node 6f4310b00b9a147241b071a60c28a650827fb03d)

  $ hg resolve -l

  R file1

  U file2

insert unsupported mandatory merge record

  $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -X

  $ hg debugmergestate

  * version 2 records

  local: 57653b9f834a4493f7240b0681efcb9ae7cab745

  other: dc77451844e37f03f5c559e3b8529b2b48d381d1

  labels:

    local: working copy

    other: merge rev

  file extras: file1 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)

  file: file1 (record type "F", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)

    local path: file1 (flags "")

    ancestor path: file1 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)

    other path: file1 (node 6f4310b00b9a147241b071a60c28a650827fb03d)

  file extras: file2 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)

  file: file2 (record type "F", state "u", hash cb99b709a1978bd205ab9dfd4c5aaa1fc91c7523)

    local path: file2 (flags "")

    ancestor path: file2 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)

    other path: file2 (node 6f4310b00b9a147241b071a60c28a650827fb03d)

  unrecognized entry: X	mandatory record

  $ hg resolve -l

  abort: unsupported merge state records: X

  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)

  [255]

  $ hg resolve -ma

  abort: unsupported merge state records: X

  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)

  [255]

  $ hg summary

  warning: merge state has unsupported record types: X

  parent: 2:57653b9f834a 

   append baz to files

  parent: 1:dc77451844e3 

   append bar to files

  branch: default

  commit: 2 modified, 2 unknown (merge)

  update: 2 new changesets (update)

  phases: 5 draft

update --clean shouldn't abort on unsupported records

  $ hg up -qC 1

  $ hg debugmergestate

  no merge state found

test crashed merge with empty mergestate

  $ mkdir .hg/merge

  $ touch .hg/merge/state

resolve -l should be empty

  $ hg resolve -l

resolve -m can be configured to look for remaining conflict markers

  $ hg up -qC 2

  $ hg merge -q --tool=internal:merge 1

  warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')

  warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')

  [1]

  $ hg resolve -l

  U file1

  U file2

  $ echo 'remove markers' > file1