view tests/test-log.t @ 25757:4d1382fd96ff

context: write dirstate out explicitly at the end of markcommitted

To detect change of a file without redundant comparison of file
content, dirstate recognizes a file as certainly clean, if:

  (1) it is already known as "normal",
  (2) dirstate entry for it has valid (= not "-1") timestamp, and
  (3) mode, size and timestamp of it on the filesystem are as same as
      ones expected in dirstate

This works as expected in many cases, but doesn't in the corner case
that changing a file keeps mode, size and timestamp of it on the
filesystem.

The timetable below shows steps in one of typical such situations:

  ---- ----------------------------------- ----------------
                                           timestamp of "f"
                                           ----------------
                                           dirstate   file-
  time          action                     mem  file  system
  ---- ----------------------------------- ---- ----- -----
   *                                             ***    ***
       - 'hg transplant REV1 REV2 ...'
         - transplanting REV1
           ....
   N
           - change "f", but keep size                   N
             (via 'patch.patch()')
           - 'dirstate.normal("f")'          N   ***
             (via 'repo.commit()')

         - transplanting REV2
           - change "f", but keep size                   N
             (via 'patch.patch()')
           - aborted while patching
  N+1
         - release wlock
           - 'dirstate.write()'              N    N      N

       - 'hg status' shows "r1" as "clean"   N    N      N
  ---- ----------------------------------- ---- ----- -----

The most important point is that 'dirstate.write()' is executed at N+1
or later. This causes writing dirstate timestamp N of "f" out
successfully. If it is executed at N, 'parsers.pack_dirstate()'
replaces timestamp N with "-1" before actual writing dirstate out.

This issue can occur when 'hg transplant' satisfies conditions below:

  - multiple revisions to be transplanted change the same file
  - those revisions don't change mode and size of the file, and
  - the 2nd or later revision of them fails after changing the file

The root cause of this issue is that files are changed without
flushing in-memory dirstate changes via 'repo.commit()' (even though
omitting 'dirstate.normallookup()' on files changed by 'patch.patch()'
for efficiency also causes this issue).

To detect changes of files correctly, this patch writes in-memory
dirstate changes out explicitly after marking files as clean in
'committablectx.markcommitted()', which is invoked via
'repo.commit()'.

After this change, timetable is changed as below:

  ---- ----------------------------------- ----------------
                                           timestamp of "f"
                                           ----------------
                                           dirstate   file-
  time          action                     mem  file  system
  ---- ----------------------------------- ---- ----- -----
   *                                             ***    ***
       - 'hg transplant REV1 REV2 ...'
         - transplanting REV1
           ....
   N
           - change "f", but keep size                   N
             (via 'patch.patch()')
           - 'dirstate.normal("f")'          N    ***
             (via 'repo.commit()')
       ----------------------------------- ---- ----- -----
           - 'dirsttate.write()'            -1    -1
       ----------------------------------- ---- ----- -----
         - transplanting REV2
           - change "f", but keep size                   N
             (via 'patch.patch()')
           - aborted while patching
  N+1
         - release wlock
           - 'dirstate.write()'              -1   -1     N

       - 'hg status' shows "r1" as "clean"   -1   -1     N
  ---- ----------------------------------- ---- ----- -----

To reproduce this issue in tests certainly, this patch emulates some
timing critical actions as below:

  - change "f" at N

    'patch.patch()' with 'fakepatchtime.py' explicitly changes mtime
    of patched files to "2000-01-01 00:00" (= N).

  - 'dirstate.write()' via 'repo.commit()' at N

    'fakedirstatewritetime.py' forces 'pack_dirstate()' to use
    "2000-01-01 00:00" as "now", only if 'pack_dirstate()' is invoked
    via 'committablectx.markcommitted()'.

  - 'dirstate.write()' via releasing wlock at N+1 (or "not at N")

    'pack_dirstate()' via releasing wlock uses actual timestamp at
    runtime as "now", and it should be different from the "2000-01-01
    00:00" of "f".

BTW, this patch doesn't test cases below, even though 'patch.patch()'
is used similarly in these cases:

  1. failure of 'hg import' or 'hg qpush'

  2. success of 'hg import', 'hg qpush' or 'hg transplant'

Case (1) above doesn't cause this kind of issue, because:

  - if patching is aborted by conflicts, changed files are committed

    changed files are marked as CLEAN, even though they are partially
    patched.

  - otherwise, dirstate are fully restored by 'dirstateguard'

    For example in timetable above, timestamp of "f" in .hg/dirstate
    is restored to -1 (or less than N), and subsequent 'hg status' can
    detect changes correctly.

Case (2) always causes 'repo.status()' invocation via 'repo.commit()'
just after changing files inside same wlock scope.

  ---- ----------------------------------- ----------------
                                           timestamp of "f"
                                           ----------------
                                           dirstate   file-
  time          action                     mem  file  system
  ---- ----------------------------------- ---- ----- -----
  N                                              ***   ***
       - make file "f" clean                            N

       - execute 'hg foobar'
         ....
         - 'dirstate.normal("f")'           N    ***
           (e.g. via dirty check
            or previous 'repo.commit()')

         - change "f", but keep size                    N
         - 'repo.status()' (*1)
           (via 'repo.commit()')
  ---- ----------------------------------- ---- ----- -----

At a glance, 'repo.status()' at (*1) seems to cause similar issue (=
"changed files are treated as clean"), but actually doesn't.

'dirstate._lastnormaltime' should be N at (*1) above, because
'dirstate.normal()' via dirty check is finished at N.

Therefore, "f" changed at N (= 'dirstate._lastnormaltime') is forcibly
treated as "unsure" at (*1), and changes are detected as expected (see
'dirstate.status()' for detail).

If 'hg import' is executed with '--no-commit', 'repo.status()' isn't
invoked just after changing files inside same wlock scope.

But preceding 'dirstate.normal()' is invoked inside another wlock
scope via 'cmdutil.bailifchanged()', and in-memory changes should be
flushed at the end of that scope.

Therefore, timestamp N of clean "f" should be replaced by -1, if
'dirstate.write()' is invoked at N. It means that condition of this
issue isn't satisfied.

Log on empty repository: checking consistency

  $ hg init empty
  $ cd empty
  $ hg log
  $ hg log -r 1
  abort: unknown revision '1'!
  [255]
  $ hg log -r -1:0
  abort: unknown revision '-1'!
  [255]
  $ hg log -r 'branch(name)'
  abort: unknown revision 'name'!
  [255]
  $ hg log -r null -q
  -1:000000000000

The g is crafted to have 2 filelog topological heads in a linear
changeset graph

  $ hg init a
  $ cd a
  $ echo a > a
  $ echo f > f
  $ hg ci -Ama -d '1 0'
  adding a
  adding f

  $ hg cp a b
  $ hg cp f g
  $ hg ci -mb -d '2 0'

  $ mkdir dir
  $ hg mv b dir
  $ echo g >> g
  $ echo f >> f
  $ hg ci -mc -d '3 0'

  $ hg mv a b
  $ hg cp -f f g
  $ echo a > d
  $ hg add d
  $ hg ci -md -d '4 0'

  $ hg mv dir/b e
  $ hg ci -me -d '5 0'

Make sure largefiles doesn't interfere with logging a regular file
  $ hg --debug log a -T '{rev}: {desc}\n' --config extensions.largefiles=
  updated patterns: ['.hglf/a', 'a']
  0: a
  $ hg log a
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  
  $ hg log glob:a*
  changeset:   3:2ca5ba701980
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     d
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  
  $ hg --debug log glob:a* -T '{rev}: {desc}\n' --config extensions.largefiles=
  updated patterns: ['glob:.hglf/a*', 'glob:a*']
  3: d
  0: a

log on directory

  $ hg log dir
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     e
  
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  $ hg log somethingthatdoesntexist dir
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     e
  
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  

-f, non-existent directory

  $ hg log -f dir
  abort: cannot follow file not in parent revision: "dir"
  [255]

-f, directory

  $ hg up -q 3
  $ hg log -f dir
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
-f, directory with --patch

  $ hg log -f dir -p
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
  --- /dev/null* (glob)
  +++ b/dir/b* (glob)
  @@ -0,0 +1,1 @@
  +a
  

-f, pattern

  $ hg log -f -I 'dir**' -p
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
  --- /dev/null* (glob)
  +++ b/dir/b* (glob)
  @@ -0,0 +1,1 @@
  +a
  
  $ hg up -q 4

-f, a wrong style

  $ hg log -f -l1 --style something
  abort: style 'something' not found
  (available styles: bisect, changelog, compact, default, phases, status, xml)
  [255]

-f, phases style


  $ hg log -f -l1 --style phases
  changeset:   4:7e4639b4691b
  tag:         tip
  phase:       draft
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     e
  

  $ hg log -f -l1 --style phases -q
  4:7e4639b4691b

-f, but no args

  $ hg log -f
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  summary:     e
  
  changeset:   3:2ca5ba701980
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     d
  
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     b
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  

one rename

  $ hg up -q 2
  $ hg log -vf a
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  files:       a f
  description:
  a
  
  

many renames

  $ hg up -q tip
  $ hg log -vf e
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  files:       dir/b e
  description:
  e
  
  
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  files:       b dir/b f g
  description:
  c
  
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  files:       b g
  description:
  b
  
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  files:       a f
  description:
  a
  
  


log -pf dir/b

  $ hg up -q 3
  $ hg log -pf dir/b
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/dir/b	Thu Jan 01 00:00:03 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     b
  
  diff -r 9161b9aeaf16 -r d89b0a12d229 b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:02 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  
  diff -r 000000000000 -r 9161b9aeaf16 a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:01 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  

log -pf b inside dir

  $ hg --cwd=dir log -pf b
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/dir/b	Thu Jan 01 00:00:03 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     b
  
  diff -r 9161b9aeaf16 -r d89b0a12d229 b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:02 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  
  diff -r 000000000000 -r 9161b9aeaf16 a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:01 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  

log -pf, but no args

  $ hg log -pf
  changeset:   3:2ca5ba701980
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     d
  
  diff -r f8954cd4dc1f -r 2ca5ba701980 a
  --- a/a	Thu Jan 01 00:00:03 1970 +0000
  +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +0,0 @@
  -a
  diff -r f8954cd4dc1f -r 2ca5ba701980 b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:04 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  diff -r f8954cd4dc1f -r 2ca5ba701980 d
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/d	Thu Jan 01 00:00:04 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  diff -r f8954cd4dc1f -r 2ca5ba701980 g
  --- a/g	Thu Jan 01 00:00:03 1970 +0000
  +++ b/g	Thu Jan 01 00:00:04 1970 +0000
  @@ -1,2 +1,2 @@
   f
  -g
  +f
  
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  summary:     c
  
  diff -r d89b0a12d229 -r f8954cd4dc1f b
  --- a/b	Thu Jan 01 00:00:02 1970 +0000
  +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +0,0 @@
  -a
  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/dir/b	Thu Jan 01 00:00:03 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  diff -r d89b0a12d229 -r f8954cd4dc1f f
  --- a/f	Thu Jan 01 00:00:02 1970 +0000
  +++ b/f	Thu Jan 01 00:00:03 1970 +0000
  @@ -1,1 +1,2 @@
   f
  +f
  diff -r d89b0a12d229 -r f8954cd4dc1f g
  --- a/g	Thu Jan 01 00:00:02 1970 +0000
  +++ b/g	Thu Jan 01 00:00:03 1970 +0000
  @@ -1,1 +1,2 @@
   f
  +g
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     b
  
  diff -r 9161b9aeaf16 -r d89b0a12d229 b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:02 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  diff -r 9161b9aeaf16 -r d89b0a12d229 g
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/g	Thu Jan 01 00:00:02 1970 +0000
  @@ -0,0 +1,1 @@
  +f
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     a
  
  diff -r 000000000000 -r 9161b9aeaf16 a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:01 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  diff -r 000000000000 -r 9161b9aeaf16 f
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/f	Thu Jan 01 00:00:01 1970 +0000
  @@ -0,0 +1,1 @@
  +f
  

log -vf dir/b

  $ hg log -vf dir/b
  changeset:   2:f8954cd4dc1f
  user:        test
  date:        Thu Jan 01 00:00:03 1970 +0000
  files:       b dir/b f g
  description:
  c
  
  
  changeset:   1:d89b0a12d229
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  files:       b g
  description:
  b
  
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  files:       a f
  description:
  a
  
  


-f and multiple filelog heads

  $ hg up -q 2
  $ hg log -f g --template '{rev}\n'
  2
  1
  0
  $ hg up -q tip
  $ hg log -f g --template '{rev}\n'
  3
  2
  0


log copies with --copies

  $ hg log -vC --template '{rev} {file_copies}\n'
  4 e (dir/b)
  3 b (a)g (f)
  2 dir/b (b)
  1 b (a)g (f)
  0 

log copies switch without --copies, with old filecopy template

  $ hg log -v --template '{rev} {file_copies_switch%filecopy}\n'
  4 
  3 
  2 
  1 
  0 

log copies switch with --copies

  $ hg log -vC --template '{rev} {file_copies_switch}\n'
  4 e (dir/b)
  3 b (a)g (f)
  2 dir/b (b)
  1 b (a)g (f)
  0 


log copies with hardcoded style and with --style=default

  $ hg log -vC -r4
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  files:       dir/b e
  copies:      e (dir/b)
  description:
  e
  
  
  $ hg log -vC -r4 --style=default
  changeset:   4:7e4639b4691b
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:05 1970 +0000
  files:       dir/b e
  copies:      e (dir/b)
  description:
  e
  
  
  $ hg log -vC -r4 -Tjson
  [
   {
    "rev": 4,
    "node": "7e4639b4691b9f84b81036a8d4fb218ce3c5e3a3",
    "branch": "default",
    "phase": "draft",
    "user": "test",
    "date": [5, 0],
    "desc": "e",
    "bookmarks": [],
    "tags": ["tip"],
    "parents": ["2ca5ba7019804f1f597249caddf22a64d34df0ba"],
    "files": ["dir/b", "e"],
    "copies": {"e": "dir/b"}
   }
  ]

log copies, non-linear manifest

  $ hg up -C 3
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg mv dir/b e
  $ echo foo > foo
  $ hg ci -Ame2 -d '6 0'
  adding foo
  created new head
  $ hg log -v --template '{rev} {file_copies}\n' -r 5
  5 e (dir/b)


log copies, execute bit set

#if execbit
  $ chmod +x e
  $ hg ci -me3 -d '7 0'
  $ hg log -v --template '{rev} {file_copies}\n' -r 6
  6 
#endif


log -p d

  $ hg log -pv d
  changeset:   3:2ca5ba701980
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  files:       a b d g
  description:
  d
  
  
  diff -r f8954cd4dc1f -r 2ca5ba701980 d
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/d	Thu Jan 01 00:00:04 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  


log --removed file

  $ hg log --removed -v a
  changeset:   3:2ca5ba701980
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  files:       a b d g
  description:
  d
  
  
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  files:       a f
  description:
  a
  
  

log --removed revrange file

  $ hg log --removed -v -r0:2 a
  changeset:   0:9161b9aeaf16
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  files:       a f
  description:
  a
  
  
  $ cd ..

log --follow tests

  $ hg init follow
  $ cd follow

  $ echo base > base
  $ hg ci -Ambase -d '1 0'
  adding base

  $ echo r1 >> base
  $ hg ci -Amr1 -d '1 0'
  $ echo r2 >> base
  $ hg ci -Amr2 -d '1 0'

  $ hg up -C 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo b1 > b1
  $ hg ci -Amb1 -d '1 0'
  adding b1
  created new head


log -f

  $ hg log -f
  changeset:   3:e62f78d544b4
  tag:         tip
  parent:      1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1
  
  changeset:   1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     r1
  
  changeset:   0:67e992f2c4f3
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     base
  


log -f -r '1 + 4'

  $ hg up -C 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo b2 > b2
  $ hg ci -Amb2 -d '1 0'
  adding b2
  created new head
  $ hg log -f -r '1 + 4'
  changeset:   4:ddb82e70d1a1
  tag:         tip
  parent:      0:67e992f2c4f3
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b2
  
  changeset:   1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     r1
  
  changeset:   0:67e992f2c4f3
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     base
  
log -f -r null

  $ hg log -f -r null
  changeset:   -1:000000000000
  user:        
  date:        Thu Jan 01 00:00:00 1970 +0000
  
  $ hg log -f -r null -G
  o  changeset:   -1:000000000000
     user:
     date:        Thu Jan 01 00:00:00 1970 +0000
  


log -f with null parent

  $ hg up -C null
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg log -f


log -r .  with two parents

  $ hg up -C 3
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge tip
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg log -r .
  changeset:   3:e62f78d544b4
  parent:      1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1
  


log -r .  with one parent

  $ hg ci -mm12 -d '1 0'
  $ hg log -r .
  changeset:   5:302e9dd6890d
  tag:         tip
  parent:      3:e62f78d544b4
  parent:      4:ddb82e70d1a1
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     m12
  

  $ echo postm >> b1
  $ hg ci -Amb1.1 -d'1 0'


log --follow-first

  $ hg log --follow-first
  changeset:   6:2404bbcab562
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1.1
  
  changeset:   5:302e9dd6890d
  parent:      3:e62f78d544b4
  parent:      4:ddb82e70d1a1
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     m12
  
  changeset:   3:e62f78d544b4
  parent:      1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1
  
  changeset:   1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     r1
  
  changeset:   0:67e992f2c4f3
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     base
  


log -P 2

  $ hg log -P 2
  changeset:   6:2404bbcab562
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1.1
  
  changeset:   5:302e9dd6890d
  parent:      3:e62f78d544b4
  parent:      4:ddb82e70d1a1
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     m12
  
  changeset:   4:ddb82e70d1a1
  parent:      0:67e992f2c4f3
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b2
  
  changeset:   3:e62f78d544b4
  parent:      1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1
  


log -r tip -p --git

  $ hg log -r tip -p --git
  changeset:   6:2404bbcab562
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1.1
  
  diff --git a/b1 b/b1
  --- a/b1
  +++ b/b1
  @@ -1,1 +1,2 @@
   b1
  +postm
  


log -r ""

  $ hg log -r ''
  hg: parse error: empty query
  [255]

log -r <some unknown node id>

  $ hg log -r 1000000000000000000000000000000000000000
  abort: unknown revision '1000000000000000000000000000000000000000'!
  [255]

log -k r1

  $ hg log -k r1
  changeset:   1:3d5bf5654eda
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     r1
  
log -p -l2 --color=always

  $ hg --config extensions.color= --config color.mode=ansi \
  >  log -p -l2 --color=always
  \x1b[0;33mchangeset:   6:2404bbcab562\x1b[0m (esc)
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1.1
  
  \x1b[0;1mdiff -r 302e9dd6890d -r 2404bbcab562 b1\x1b[0m (esc)
  \x1b[0;31;1m--- a/b1	Thu Jan 01 00:00:01 1970 +0000\x1b[0m (esc)
  \x1b[0;32;1m+++ b/b1	Thu Jan 01 00:00:01 1970 +0000\x1b[0m (esc)
  \x1b[0;35m@@ -1,1 +1,2 @@\x1b[0m (esc)
   b1
  \x1b[0;32m+postm\x1b[0m (esc)
  
  \x1b[0;33mchangeset:   5:302e9dd6890d\x1b[0m (esc)
  parent:      3:e62f78d544b4
  parent:      4:ddb82e70d1a1
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     m12
  
  \x1b[0;1mdiff -r e62f78d544b4 -r 302e9dd6890d b2\x1b[0m (esc)
  \x1b[0;31;1m--- /dev/null	Thu Jan 01 00:00:00 1970 +0000\x1b[0m (esc)
  \x1b[0;32;1m+++ b/b2	Thu Jan 01 00:00:01 1970 +0000\x1b[0m (esc)
  \x1b[0;35m@@ -0,0 +1,1 @@\x1b[0m (esc)
  \x1b[0;32m+b2\x1b[0m (esc)
  


log -r tip --stat

  $ hg log -r tip --stat
  changeset:   6:2404bbcab562
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:01 1970 +0000
  summary:     b1.1
  
   b1 |  1 +
   1 files changed, 1 insertions(+), 0 deletions(-)
  

  $ cd ..


User

  $ hg init usertest
  $ cd usertest

  $ echo a > a
  $ hg ci -A -m "a" -u "User One <[e-mail]>"
  adding a
  $ echo b > b
  $ hg ci -A -m "b" -u "User Two <[e-mail]>"
  adding b

  $ hg log -u "User One <[e-mail]>"
  changeset:   0:29a4c94f1924
  user:        User One <[e-mail]>
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  
  $ hg log -u "user1" -u "user2"
  changeset:   1:e834b5e69c0e
  tag:         tip
  user:        User Two <[e-mail]>
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  changeset:   0:29a4c94f1924
  user:        User One <[e-mail]>
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  
  $ hg log -u "user3"

  $ cd ..

  $ hg init branches
  $ cd branches

  $ echo a > a
  $ hg ci -A -m "commit on default"
  adding a
  $ hg branch test
  marked working directory as branch test
  (branches are permanent and global, did you want a bookmark?)
  $ echo b > b
  $ hg ci -A -m "commit on test"
  adding b

  $ hg up default
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -A -m "commit on default"
  adding c
  $ hg up test
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -A -m "commit on test"
  adding c


log -b default

  $ hg log -b default
  changeset:   2:c3a4f03cc9a7
  parent:      0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  


log -b test

  $ hg log -b test
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  


log -b dummy

  $ hg log -b dummy
  abort: unknown revision 'dummy'!
  [255]


log -b .

  $ hg log -b .
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  


log -b default -b test

  $ hg log -b default -b test
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   2:c3a4f03cc9a7
  parent:      0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  


log -b default -b .

  $ hg log -b default -b .
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   2:c3a4f03cc9a7
  parent:      0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  


log -b . -b test

  $ hg log -b . -b test
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  


log -b 2

  $ hg log -b 2
  changeset:   2:c3a4f03cc9a7
  parent:      0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
#if gettext

Test that all log names are translated (e.g. branches, bookmarks, tags):

  $ hg bookmark babar -r tip

  $ HGENCODING=UTF-8 LANGUAGE=de hg log -r tip
  \xc3\x84nderung:        3:f5d8de11c2e2 (esc)
  Zweig:           test
  Lesezeichen:     babar
  Marke:           tip
  Vorg\xc3\xa4nger:       1:d32277701ccb (esc)
  Nutzer:          test
  Datum:           Thu Jan 01 00:00:00 1970 +0000
  Zusammenfassung: commit on test
  
  $ hg bookmark -d babar

#endif

log -p --cwd dir (in subdir)

  $ mkdir dir
  $ hg log -p --cwd dir
  changeset:   3:f5d8de11c2e2
  branch:      test
  tag:         tip
  parent:      1:d32277701ccb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  diff -r d32277701ccb -r f5d8de11c2e2 c
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +c
  
  changeset:   2:c3a4f03cc9a7
  parent:      0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  diff -r 24427303d56f -r c3a4f03cc9a7 c
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +c
  
  changeset:   1:d32277701ccb
  branch:      test
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on test
  
  diff -r 24427303d56f -r d32277701ccb b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +b
  
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  diff -r 000000000000 -r 24427303d56f a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  


log -p -R repo

  $ cd dir
  $ hg log -p -R .. ../a
  changeset:   0:24427303d56f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     commit on default
  
  diff -r 000000000000 -r 24427303d56f a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +a
  

  $ cd ../..

  $ hg init follow2
  $ cd follow2

# Build the following history:
# tip - o - x - o - x - x
#    \                 /
#     o - o - o - x
#      \     /
#         o
#
# Where "o" is a revision containing "foo" and
# "x" is a revision without "foo"

  $ touch init
  $ hg ci -A -m "init, unrelated"
  adding init
  $ echo 'foo' > init
  $ hg ci -m "change, unrelated"
  $ echo 'foo' > foo
  $ hg ci -A -m "add unrelated old foo"
  adding foo
  $ hg rm foo
  $ hg ci -m "delete foo, unrelated"
  $ echo 'related' > foo
  $ hg ci -A -m "add foo, related"
  adding foo

  $ hg up 0
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ touch branch
  $ hg ci -A -m "first branch, unrelated"
  adding branch
  created new head
  $ touch foo
  $ hg ci -A -m "create foo, related"
  adding foo
  $ echo 'change' > foo
  $ hg ci -m "change foo, related"

  $ hg up 6
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo 'change foo in branch' > foo
  $ hg ci -m "change foo in branch, related"
  created new head
  $ hg merge 7
  merging foo
  warning: conflicts during merge.
  merging foo incomplete! (edit conflicts, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  [1]
  $ echo 'merge 1' > foo
  $ hg resolve -m foo
  (no more unresolved files)
  $ hg ci -m "First merge, related"

  $ hg merge 4
  merging foo
  warning: conflicts during merge.
  merging foo incomplete! (edit conflicts, 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 or 'hg update -C .' to abandon
  [1]
  $ echo 'merge 2' > foo
  $ hg resolve -m foo
  (no more unresolved files)
  $ hg ci -m "Last merge, related"

  $ hg log --graph
  @    changeset:   10:4dae8563d2c5
  |\   tag:         tip
  | |  parent:      9:7b35701b003e
  | |  parent:      4:88176d361b69
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     Last merge, related
  | |
  | o    changeset:   9:7b35701b003e
  | |\   parent:      8:e5416ad8a855
  | | |  parent:      7:87fe3144dcfa
  | | |  user:        test
  | | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | | |  summary:     First merge, related
  | | |
  | | o  changeset:   8:e5416ad8a855
  | | |  parent:      6:dc6c325fe5ee
  | | |  user:        test
  | | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | | |  summary:     change foo in branch, related
  | | |
  | o |  changeset:   7:87fe3144dcfa
  | |/   user:        test
  | |    date:        Thu Jan 01 00:00:00 1970 +0000
  | |    summary:     change foo, related
  | |
  | o  changeset:   6:dc6c325fe5ee
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     create foo, related
  | |
  | o  changeset:   5:73db34516eb9
  | |  parent:      0:e87515fd044a
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     first branch, unrelated
  | |
  o |  changeset:   4:88176d361b69
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     add foo, related
  | |
  o |  changeset:   3:dd78ae4afb56
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     delete foo, unrelated
  | |
  o |  changeset:   2:c4c64aedf0f7
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     add unrelated old foo
  | |
  o |  changeset:   1:e5faa7440653
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     change, unrelated
  |
  o  changeset:   0:e87515fd044a
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     init, unrelated
  

  $ hg --traceback log -f foo
  changeset:   10:4dae8563d2c5
  tag:         tip
  parent:      9:7b35701b003e
  parent:      4:88176d361b69
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Last merge, related
  
  changeset:   9:7b35701b003e
  parent:      8:e5416ad8a855
  parent:      7:87fe3144dcfa
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     First merge, related
  
  changeset:   8:e5416ad8a855
  parent:      6:dc6c325fe5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     change foo in branch, related
  
  changeset:   7:87fe3144dcfa
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     change foo, related
  
  changeset:   6:dc6c325fe5ee
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     create foo, related
  
  changeset:   4:88176d361b69
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     add foo, related
  

Also check when maxrev < lastrevfilelog

  $ hg --traceback log -f -r4 foo
  changeset:   4:88176d361b69
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     add foo, related
  
  changeset:   2:c4c64aedf0f7
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     add unrelated old foo
  
  $ cd ..

Issue2383: hg log showing _less_ differences than hg diff

  $ hg init issue2383
  $ cd issue2383

Create a test repo:

  $ echo a > a
  $ hg ci -Am0
  adding a
  $ echo b > b
  $ hg ci -Am1
  adding b
  $ hg co 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo b > a
  $ hg ci -m2
  created new head

Merge:

  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

Make sure there's a file listed in the merge to trigger the bug:

  $ echo c > a
  $ hg ci -m3

Two files shown here in diff:

  $ hg diff --rev 2:3
  diff -r b09be438c43a -r 8e07aafe1edc a
  --- a/a	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +1,1 @@
  -b
  +c
  diff -r b09be438c43a -r 8e07aafe1edc b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +b

Diff here should be the same:

  $ hg log -vpr 3
  changeset:   3:8e07aafe1edc
  tag:         tip
  parent:      2:b09be438c43a
  parent:      1:925d80f479bb
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  files:       a
  description:
  3
  
  
  diff -r b09be438c43a -r 8e07aafe1edc a
  --- a/a	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +1,1 @@
  -b
  +c
  diff -r b09be438c43a -r 8e07aafe1edc b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +b
  
  $ cd ..

'hg log -r rev fn' when last(filelog(fn)) != rev

  $ hg init simplelog
  $ cd simplelog
  $ echo f > a
  $ hg ci -Am'a' -d '0 0'
  adding a
  $ echo f >> a
  $ hg ci -Am'a bis' -d '1 0'

  $ hg log -r0 a
  changeset:   0:9f758d63dcde
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a
  
enable obsolete to test hidden feature

  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > evolution=createmarkers
  > EOF

  $ hg log --template='{rev}:{node}\n'
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05
  $ hg debugobsolete a765632148dc55d38c35c4f247c618701886cb2f
  $ hg up null -q
  $ hg log --template='{rev}:{node}\n'
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05
  $ hg log --template='{rev}:{node}\n' --hidden
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05
  $ hg log -r a
  abort: hidden revision 'a'!
  (use --hidden to access hidden revisions)
  [255]

test that parent prevent a changeset to be hidden

  $ hg up 1 -q --hidden
  $ hg log --template='{rev}:{node}\n'
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05

test that second parent prevent a changeset to be hidden too

  $ hg debugsetparents 0 1 # nothing suitable to merge here
  $ hg log --template='{rev}:{node}\n'
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05
  $ hg debugsetparents 1
  $ hg up -q null

bookmarks prevent a changeset being hidden

  $ hg bookmark --hidden -r 1 X
  $ hg log --template '{rev}:{node}\n'
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05
  $ hg bookmark -d X

divergent bookmarks are not hidden

  $ hg bookmark --hidden -r 1 X@foo
  $ hg log --template '{rev}:{node}\n'
  1:a765632148dc55d38c35c4f247c618701886cb2f
  0:9f758d63dcde62d547ebfb08e1e7ee96535f2b05

clear extensions configuration
  $ echo '[extensions]' >> $HGRCPATH
  $ echo "obs=!" >> $HGRCPATH
  $ cd ..

test -u/-k for problematic encoding
# unicode: cp932:
# u30A2    0x83 0x41(= 'A')
# u30C2    0x83 0x61(= 'a')

  $ hg init problematicencoding
  $ cd problematicencoding

  $ python > setup.sh <<EOF
  > print u'''
  > echo a > text
  > hg add text
  > hg --encoding utf-8 commit -u '\u30A2' -m none
  > echo b > text
  > hg --encoding utf-8 commit -u '\u30C2' -m none
  > echo c > text
  > hg --encoding utf-8 commit -u none -m '\u30A2'
  > echo d > text
  > hg --encoding utf-8 commit -u none -m '\u30C2'
  > '''.encode('utf-8')
  > EOF
  $ sh < setup.sh

test in problematic encoding
  $ python > test.sh <<EOF
  > print u'''
  > hg --encoding cp932 log --template '{rev}\\n' -u '\u30A2'
  > echo ====
  > hg --encoding cp932 log --template '{rev}\\n' -u '\u30C2'
  > echo ====
  > hg --encoding cp932 log --template '{rev}\\n' -k '\u30A2'
  > echo ====
  > hg --encoding cp932 log --template '{rev}\\n' -k '\u30C2'
  > '''.encode('cp932')
  > EOF
  $ sh < test.sh
  0
  ====
  1
  ====
  2
  0
  ====
  3
  1

  $ cd ..

test hg log on non-existent files and on directories
  $ hg init issue1340
  $ cd issue1340
  $ mkdir d1; mkdir D2; mkdir D3.i; mkdir d4.hg; mkdir d5.d; mkdir .d6
  $ echo 1 > d1/f1
  $ echo 1 > D2/f1
  $ echo 1 > D3.i/f1
  $ echo 1 > d4.hg/f1
  $ echo 1 > d5.d/f1
  $ echo 1 > .d6/f1
  $ hg -q add .
  $ hg commit -m "a bunch of weird directories"
  $ hg log -l1 d1/f1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 f1
  $ hg log -l1 . | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 ./ | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 d1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 D2 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 D2/f1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 D3.i | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 D3.i/f1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 d4.hg | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 d4.hg/f1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 d5.d | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 d5.d/f1 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 .d6 | grep changeset
  changeset:   0:65624cd9070a
  $ hg log -l1 .d6/f1 | grep changeset
  changeset:   0:65624cd9070a

issue3772: hg log -r :null showing revision 0 as well

  $ hg log -r :null
  changeset:   0:65624cd9070a
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a bunch of weird directories
  
  changeset:   -1:000000000000
  user:        
  date:        Thu Jan 01 00:00:00 1970 +0000
  
  $ hg log -r null:null
  changeset:   -1:000000000000
  user:        
  date:        Thu Jan 01 00:00:00 1970 +0000
  
working-directory revision requires special treatment

  $ hg log -r 'wdir()'
  changeset:   0:65624cd9070a+
  parent:      0:65624cd9070a
  user:        test
  date:        [A-Za-z0-9:+ ]+ (re)
  
  $ hg log -r 'wdir()' -q
  0:65624cd9070a+

  $ hg log -r 'wdir()' --debug
  changeset:   0:65624cd9070a035fa7191a54f2b8af39f16b0c08+
  phase:       draft
  parent:      0:65624cd9070a035fa7191a54f2b8af39f16b0c08
  parent:      -1:0000000000000000000000000000000000000000
  user:        test
  date:        [A-Za-z0-9:+ ]+ (re)
  extra:       branch=default
  
  $ hg log -r 'wdir()' -Tjson
  [
   {
    "rev": null,
    "node": null,
    "branch": "default",
    "phase": "draft",
    "user": "test",
    "date": [*, 0], (glob)
    "desc": "",
    "bookmarks": [],
    "tags": [],
    "parents": ["65624cd9070a035fa7191a54f2b8af39f16b0c08"]
   }
  ]

  $ hg log -r 'wdir()' -Tjson -q
  [
   {
    "rev": null,
    "node": null
   }
  ]

  $ hg log -r 'wdir()' -Tjson --debug
  [
   {
    "rev": null,
    "node": null,
    "branch": "default",
    "phase": "draft",
    "user": "test",
    "date": [*, 0], (glob)
    "desc": "",
    "bookmarks": [],
    "tags": [],
    "parents": ["65624cd9070a035fa7191a54f2b8af39f16b0c08"],
    "manifest": null,
    "extra": {"branch": "default"},
    "modified": [],
    "added": [],
    "removed": []
   }
  ]

Check that adding an arbitrary name shows up in log automatically

  $ cat > ../names.py <<EOF
  > """A small extension to test adding arbitrary names to a repo"""
  > from mercurial.namespaces import namespace
  > 
  > def reposetup(ui, repo):
  >     foo = {'foo': repo[0].node()}
  >     names = lambda r: foo.keys()
  >     namemap = lambda r, name: foo.get(name)
  >     nodemap = lambda r, node: [name for name, n in foo.iteritems()
  >                                if n == node]
  >     ns = namespace("bars", templatename="bar", logname="barlog",
  >                    colorname="barcolor", listnames=names, namemap=namemap,
  >                    nodemap=nodemap)
  > 
  >     repo.names.addnamespace(ns)
  > EOF

  $ hg --config extensions.names=../names.py log -r 0
  changeset:   0:65624cd9070a
  tag:         tip
  barlog:      foo
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a bunch of weird directories
  
  $ hg --config extensions.names=../names.py \
  >  --config extensions.color= --config color.log.barcolor=red \
  >  --color=always log -r 0
  \x1b[0;33mchangeset:   0:65624cd9070a\x1b[0m (esc)
  tag:         tip
  \x1b[0;31mbarlog:      foo\x1b[0m (esc)
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     a bunch of weird directories
  
  $ hg --config extensions.names=../names.py log -r 0 --template '{bars}\n'
  foo

  $ cd ..

hg log -f dir across branches

  $ hg init acrossbranches
  $ cd acrossbranches
  $ mkdir d
  $ echo a > d/a && hg ci -Aqm a
  $ echo b > d/a && hg ci -Aqm b
  $ hg up -q 0
  $ echo b > d/a && hg ci -Aqm c
  $ hg log -f d -T '{desc}' -G
  @  c
  |
  o  a
  
Ensure that largefiles doesn't interfere with following a normal file
  $ hg  --config extensions.largefiles= log -f d -T '{desc}' -G
  @  c
  |
  o  a
  
  $ hg log -f d/a -T '{desc}' -G
  @  c
  |
  o  a
  
  $ cd ..

hg log -f with linkrev pointing to another branch
-------------------------------------------------

create history with a filerev whose linkrev points to another branch

  $ hg init branchedlinkrev
  $ cd branchedlinkrev
  $ echo 1 > a
  $ hg commit -Am 'content1'
  adding a
  $ echo 2 > a
  $ hg commit -m 'content2'
  $ hg up --rev 'desc(content1)'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo unrelated > unrelated
  $ hg commit -Am 'unrelated'
  adding unrelated
  created new head
  $ hg graft -r 'desc(content2)'
  grafting 1:2294ae80ad84 "content2"
  $ echo 3 > a
  $ hg commit -m 'content3'
  $ hg log -G
  @  changeset:   4:50b9b36e9c5d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content3
  |
  o  changeset:   3:15b2327059e5
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   2:2029acd1168c
  |  parent:      0:ae0a3c9f9e95
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     unrelated
  |
  | o  changeset:   1:2294ae80ad84
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

log -f on the file should list the graft result.

  $ hg log -Gf a
  @  changeset:   4:50b9b36e9c5d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content3
  |
  o  changeset:   3:15b2327059e5
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

plain log lists the original version
(XXX we should probably list both)

  $ hg log -G a
  @  changeset:   4:50b9b36e9c5d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content3
  |
  | o  changeset:   1:2294ae80ad84
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

hg log -f from the grafted changeset
(The bootstrap should properly take the topology in account)

  $ hg up 'desc(content3)^'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -Gf a
  @  changeset:   3:15b2327059e5
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

Test that we use the first non-hidden changeset in that case.

(hide the changeset)

  $ hg log -T '{node}\n' -r 1
  2294ae80ad8447bc78383182eeac50cb049df623
  $ hg debugobsolete 2294ae80ad8447bc78383182eeac50cb049df623
  $ hg log -G
  o  changeset:   4:50b9b36e9c5d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content3
  |
  @  changeset:   3:15b2327059e5
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   2:2029acd1168c
  |  parent:      0:ae0a3c9f9e95
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     unrelated
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

Check that log on the file does not drop the file revision.

  $ hg log -G a
  o  changeset:   4:50b9b36e9c5d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content3
  |
  @  changeset:   3:15b2327059e5
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

Even when a head revision is linkrev-shadowed.

  $ hg log -T '{node}\n' -r 4
  50b9b36e9c5df2c6fc6dcefa8ad0da929e84aed2
  $ hg debugobsolete 50b9b36e9c5df2c6fc6dcefa8ad0da929e84aed2
  $ hg log -G a
  @  changeset:   3:15b2327059e5
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     content2
  |
  o  changeset:   0:ae0a3c9f9e95
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     content1
  

  $ cd ..

Even when the file revision is missing from some head:

  $ hg init issue4490
  $ cd issue4490
  $ echo '[experimental]' >> .hg/hgrc
  $ echo 'evolution=createmarkers' >> .hg/hgrc
  $ echo a > a
  $ hg ci -Am0
  adding a
  $ echo b > b
  $ hg ci -Am1
  adding b
  $ echo B > b
  $ hg ci --amend -m 1
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Am2
  adding c
  created new head
  $ hg up 'head() and not .'
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg log -G
  o  changeset:   4:db815d6d32e6
  |  tag:         tip
  |  parent:      0:f7b1eb17ad24
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     2
  |
  | @  changeset:   3:9bc8ce7f9356
  |/   parent:      0:f7b1eb17ad24
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     1
  |
  o  changeset:   0:f7b1eb17ad24
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     0
  
  $ hg log -f -G b
  @  changeset:   3:9bc8ce7f9356
  |  parent:      0:f7b1eb17ad24
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     1
  |
  $ hg log -G b
  @  changeset:   3:9bc8ce7f9356
  |  parent:      0:f7b1eb17ad24
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     1
  |
  $ cd ..

Check proper report when the manifest changes but not the file issue4499
------------------------------------------------------------------------

  $ hg init issue4499
  $ cd issue4499
  $ for f in A B C D F E G H I J K L M N O P Q R S T U; do
  >     echo 1 > $f;
  >     hg add $f;
  > done
  $ hg commit -m 'A1B1C1'
  $ echo 2 > A
  $ echo 2 > B
  $ echo 2 > C
  $ hg commit -m 'A2B2C2'
  $ hg up 0
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo 3 > A
  $ echo 2 > B
  $ echo 2 > C
  $ hg commit -m 'A3B2C2'
  created new head

  $ hg log -G
  @  changeset:   2:fe5fc3d0eb17
  |  tag:         tip
  |  parent:      0:abf4f0e38563
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A3B2C2
  |
  | o  changeset:   1:07dcc6b312c0
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     A2B2C2
  |
  o  changeset:   0:abf4f0e38563
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     A1B1C1
  

Log -f on B should reports current changesets

  $ hg log -fG B
  @  changeset:   2:fe5fc3d0eb17
  |  tag:         tip
  |  parent:      0:abf4f0e38563
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A3B2C2
  |
  o  changeset:   0:abf4f0e38563
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     A1B1C1
  
  $ cd ..