### NOTE:
### This file covers the state of Subversion trunk as of about r34285.
### It may not be 100% applicable to future versions if not updated.

Resolution recipes for tree conflict use cases 1 to 6
(see use-cases.txt and detection.txt), for files and directories.

In practice, users will likely run into more complex scenarios
than presented here (e.g. moved files and directories are not
considered below). However, the examples below show that
all these use cases are principally resolvable.

=== Use case 1, files

Conflict reported:

$ svn status
D     C alpha
$ svn info alpha
[...]
Tree conflict:
  The update attempted to edit 'alpha'.
  You have deleted 'alpha' locally.
  Maybe you renamed it?

Possible resolutions:
        1) restore alpha, apply modification
        2) leave alpha deleted

--- Resolution 1)
$ svn revert alpha
Reverted 'alpha'
### revert has cleared tree-conflicted status:
$ svn status alpha
### alpha is now at r2 again:
$ svn info alpha | grep Revision
Revision: 2
$ cat alpha   
alpha
$ svn diff -c3 ^/trunk/alpha
Index: alpha
===================================================================
--- alpha       (revision 2)
+++ alpha       (revision 3)
@@ -1 +1 @@
-alpha
+alpha, modified
$ svn update 
U    alpha
Updated to revision 3.
$ cat alpha 
alpha, modified

--- Resolution 2)
$ svn status alpha
D     C alpha
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status alpha
D       alpha


=== Use case 1, directories

Conflict reported:

$ svn status
D     C gamma
D       gamma/delta
$ svn info gamma 
[...]
Tree conflict:
  The update attempted to edit 'gamma'.
  You have deleted 'gamma' locally.
  Maybe you renamed it?

### In this case, the modification made to the directory gamma
### was a modification to the file gamma/delta. This is why
### resolution recipes below sometimes operate on gamma/delta.

Possible resolutions:
        1) restore gamma, apply modification
        2) leave gamma deleted

--- Resolution 1)
$ svn revert gamma/delta
Reverted 'gamma/delta'
$ svn status
$ cat gamma/delta 
delta
$ svn info gamma/delta | grep Revision
Revision: 2
$ svn update   
U    gamma/delta
Updated to revision 3.

-- Resolution 2)
$ svn status
D     C gamma
D       gamma/delta
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
D       gamma
D       gamma/delta

=== Use case 2, files

Conflict reported:
$ svn status
M     C alpha
$ svn info alpha 
[...]
Tree conflict:
  The update attempted to delete 'alpha',
  or attempted to rename it.
  You have edited 'alpha' locally.

Possible resolutions:
        1) Leave alpha in place, with local modifications.
        2) Remove alpha including local modifications.

-- Resolution 1)
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status
M       alpha

-- Resolution 2)
$ svn remove --force alpha
D         alpha
$ svn status alpha
D     C alpha
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status alpha
D       alpha


=== Use case 2, directories

Conflict reported:
$ svn status
      C gamma
A       gamma/iota
$ svn info gamma
[...]
Tree conflict:
  The update attempted to delete 'gamma',
  or attempted to rename it.
  You have edited 'gamma' locally.

Possible resolutions:
        1) Leave gamma in place, with local modifications.
        2) Remove gamma including local modifications.

--- Resolution 1)
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
A       gamma/iota

--- Resolution 2)
$ svn remove --force gamma
D         gamma/delta
D         gamma/iota
D         gamma
$ svn status
D     C gamma
D       gamma/delta
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
D       gamma
D       gamma/delta


=== Use case 3, files

Conflict reported:
$ svn status
D     C alpha
$ svn info alpha
[...]
Tree conflict:
  The update attempted to delete 'alpha',
  or attempted to rename it.
  You have deleted 'alpha' locally.
  Maybe you renamed it?

Possible resolutions:
        1) Leave alpha deleted.
           (Not shown below):
           If alpha was renamed on both sides, figure out the conflicting
           move target paths and decide where alpha should be moved to,
           and delete the undesired move target path before committing.
           If alpha was only renamed on one side, decide whether the
           file at the move target path should be deleted or not.

--- Resolution 1):
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status
D       alpha
### Additional steps may be needed here in case alpha was renamed, see above.
 

=== Use case 3, directories

Conflict reported:

$ svn status
D     C gamma
D       gamma/delta
$ svn info gamma
[...]
  The update attempted to delete 'gamma',
  or attempted to rename it.
  You have deleted 'gamma' locally.
  Maybe you renamed it?

Possible resolutions:
        1) Leave gamma deleted.
           (Not shown below):
           If gamma was renamed on both sides, figure out the conflicting
           move target paths and decide where gamma should be moved to,
           and delete the undesired move target path before committing.
           If gamma was only renamed on one side, decide whether the
           directory at the move target path should be deleted or not.

--- Resolution 1):
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
D       gamma
D       gamma/delta
### Additional steps may be needed here in case gamma was renamed, see above.

=== Use case 4, files

Conflict reported:
$ svn status
 M      .
!     C alpha
$ svn info alpha
Path: alpha
Name: alpha
Node Kind: none
Tree conflict:
  The merge attempted to edit 'alpha'.
'alpha' does not exist locally. Maybe you renamed it? Or has it been
renamed in the history of the branch you are merging into?

Possible resolutions:
        1) Ignore incoming edit.
        2) Restore alpha in branch and run merge again.
           (Not shown below:)
           In case alpha was renamed, rename alpha in the branch
           and run the merge again.

--- Resolution 1)
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status
 M      .   # mergeinfo

--- Resolution 2)
### revert merge to start from clean state, this also removes
### tree conflict markers:
$ svn revert -R .
Reverted '.'
Reverted 'alpha'
$ svn status
### find out when alpha was deleted on branch:
$ svn log -r4 ^/branch
------------------------------------------------------------------------
r4 | stsp | 2008-11-20 14:43:21 +0000 (Thu, 20 Nov 2008) | 1 line

deleted alpha
------------------------------------------------------------------------
### alpha was deleted in r4, restore alpha from r3:
$ svn copy ^/branch/alpha@3 .
A         alpha
### run the merge again, it succeeds:
$ svn merge ^/trunk
--- Merging r2 through r4 into '.':
U    alpha
$ svn status
 M      .
A  +    alpha


== Use case 4, directories

Conflict reported:
$ svn status
 M      .
!     C gamma
$ svn info gamma
Path: gamma
Name: gamma
Node Kind: none
Tree conflict:
  The merge attempted to edit 'gamma'.
  You have deleted 'gamma' locally.
  Maybe you renamed it?

Possible resolutions:
        1) Ignore incoming edit.
        2) Restore gamma in branch and run merge again.
           (Not shown below:)
           In case gamma was renamed, rename gamma in the branch
           and run the merge again.

-- Resolution 1)
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
 M      .   # mergeinfo

--- Resolution 2)
### revert merge to start from clean state, this also removes
### tree conflict markers:
$ svn revert -R .
Reverted '.'
Reverted 'gamma'
$ svn status
### find out when gamma was deleted on branch:
$ svn log -r4 ^/branch
------------------------------------------------------------------------
r4 | stsp | 2008-11-20 15:02:08 +0000 (Thu, 20 Nov 2008) | 1 line

deleted gamma
------------------------------------------------------------------------
### gamma was deleted in r4, restore gamma from r3:
$ svn copy ^/branch/gamma@3 .
A    gamma/delta
Checked out revision 3.
A         gamma
### run the merge again, it succeeds:
$ svn merge ^/trunk
--- Merging r2 through r4 into '.':
A    gamma/iota


== Use case 5, files

Conflict reported:
$ svn status
 M      .
M     C alpha
$ svn info alpha
[...]
Tree conflict:
  The merge attempted to delete 'alpha',
  or attempted to rename it.
Either you have edited 'alpha' locally, or it has been edited in the
history of the branch you are merging into, but those edits are not
present on the branch you are merging from.

Possible resolutions:
        1) Keep alpha with local modifications.
        2) Delete alpha.
           (Not shown below:)
           If alpha was renamed, determine move target path and
           apply local modifications there first.

-- Resolution 1)
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status alpha
M       alpha

-- Resolution 2)
$ svn status
 M      .
M     C alpha
### If alpha was renamed, additional steps may be needed here
### to transfer local modifications to the new location.
$ svn remove --force alpha
D         alpha
$ svn status
 M      .
D     C alpha
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status
 M      .
D       alpha


== Use case 5, directories

Conflict is not detected automatically.
Check merge result manually for this conflict.


=== Use case 6, files

Conflict reported:
$ svn status
 M      .
!     C alpha
$ svn info alpha
Path: alpha
Name: alpha
Node Kind: none
Tree conflict:
  The merge attempted to delete 'alpha',
  or attempted to rename it.
  You have deleted 'alpha' locally.
  Maybe you renamed it?

Possible resolutions:
        1) Delete alpha
           (Not shown below:)
           If alpha was renamed on both sides, figure out the conflicting
           move target paths and decide where alpha should be moved to,
           and delete the undesired move target path before committing.
           If alpha was only renamed on one side, decide whether the
           file at the move target path should be deleted or not.

--- Resolution 1)
$ svn resolved alpha
Resolved conflicted state of 'alpha'
$ svn status
 M      .   # mergeinfo


=== Use case 6, directories

Conflict reported:
$ svn status
 M      .
!     C gamma
$ svn info gamma
Path: gamma
Name: gamma
Node Kind: none
Tree conflict:
  The merge attempted to delete 'gamma',
  or attempted to rename it.
  You have deleted 'gamma' locally.
  Maybe you renamed it?

Possible resolutions:
        1) Delete gamma.
           (Not shown below:)
           If gamma was renamed on both sides, figure out the conflicting
           move target paths and decide where gamma should be moved to,
           and delete the undesired move target path before committing.
           If gamma was only renamed on one side, decide whether the
           file at the move target path should be deleted or not.

-- Resolution 1)
$ svn resolved gamma
Resolved conflicted state of 'gamma'
$ svn status
 M      .   # mergeinfo