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convert: add a mode where mercurial_sink skips empty revisions. The getchanges function of some converter_source classes can return some false positives. I.e. they sometimes claim that a file "foo" was changed in some revision, even though its contents are still the same. convert_svn is particularly bad, but I think this can also happen with convert_cvs and, at least in theory, with mercurial_source. For regular conversions this is not really a problem - as long as getfile returns the right contents, we'll get a converted revision with the right contents. But when we use --filemap, this could lead to superfluous revisions being converted. Instead of fixing every converter_source, I decided to change mercurial_sink to work around this problem. When --filemap is used, we're interested only in revisions that touch some specific files. If a revision doesn't change any of these files, then we're not interested in it (at least for revisions with a single parent; merges are special). For mercurial_sink, we abuse this property and rollback a commit if the manifest text hasn't changed. This avoids duplicating the logic from localrepo.filecommit to detect unchanged files.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Thu, 04 Oct 2007 23:21:37 -0300
parents 17ed9b9a0d03
children
line wrap: on
line source

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
  searching for copies back to rev 1
  unmatched files in other:
   b
 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
  searching for copies back to rev 1
  unmatched files in other:
   b
 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
  searching for copies back to rev 1
 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