merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
adding a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
diff -r 33aaa84a386b a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@ a
-a
+abc
adding b
M a
changeset: 0:33aaa84a386b
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1
resolving manifests
overwrite False partial False
ancestor 33aaa84a386b local 33aaa84a386b+ remote 802f095af299
a: versions differ -> m
b: remote created -> g
merging a
my a@33aaa84a386b+ other a@802f095af299 ancestor a@33aaa84a386b
getting b
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
changeset: 1:802f095af299
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 2
resolving manifests
overwrite False partial False
ancestor 33aaa84a386b local 802f095af299+ remote 33aaa84a386b
b: remote deleted -> r
removing b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
changeset: 0:33aaa84a386b
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1
abort: there is nothing to merge - use "hg update" instead
failed
changeset: 0:33aaa84a386b
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1
resolving manifests
overwrite False partial False
ancestor 33aaa84a386b local 33aaa84a386b+ remote 802f095af299
a: versions differ -> m
b: remote created -> g
merging a
my a@33aaa84a386b+ other a@802f095af299 ancestor a@33aaa84a386b
getting b
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
changeset: 1:802f095af299
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 2
changeset: 1:802f095af299
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
files: a b
description:
2
changeset: 0:33aaa84a386b
user: test
date: Mon Jan 12 13:46:40 1970 +0000
files: a
description:
1
diff -r 802f095af299 a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@ a2
-a2
+abc
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
adding b
M a
changeset: 1:802f095af299
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 2
abort: update spans branches, use 'hg merge' or 'hg update -C' to lose changes
failed
abort: outstanding uncommitted changes
failed
resolving manifests
overwrite False partial False
ancestor 33aaa84a386b local 802f095af299+ remote 030602aee63d
a: versions differ -> m
b: versions differ -> m
merging a
my a@802f095af299+ other a@030602aee63d ancestor a@33aaa84a386b
merging b
my b@802f095af299+ other b@030602aee63d ancestor b@000000000000
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
changeset: 1:802f095af299
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 2
changeset: 2:030602aee63d
tag: tip
parent: 0:33aaa84a386b
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 3
diff -r 802f095af299 a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@ a2
-a2
+abc
adding a
pulling from ../a
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved