patch: be more tolerant to diffstat failures (issue 865)
Sometimes, revisions cannot be represented by a regular diff, only a git diff
would capture binary files or permission changes. diffstat cannot handle git
patches and will output "0 files changed" when fed with an empty diff. We
cannot consider the latter to be an error, unless we rewrite diffstat to handle
these correctly.
adding a/a
adding a/b
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
copying a/a to b/a
copying a/b to b/b
removing a/a
removing a/b
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
resolving manifests
overwrite None partial False
ancestor f9b20c0d4c51 local ce36d17b18fb+ remote 55119e611c80
searching for copies back to rev 1
unmatched files in local:
a/c
unmatched files in other:
b/a
b/b
all copies found (* = to merge, ! = divergent):
b/a -> a/a
b/b -> a/b
checking for directory renames
dir a/ -> b/
file a/c -> b/c
a/c: remote renamed directory to b/c -> d
a/b: other deleted -> r
a/a: other deleted -> r
b/a: remote created -> g
b/b: remote created -> g
removing a/a
removing a/b
moving a/c to b/c
getting b/a
getting b/b
3 files updated, 0 files merged, 2 files removed, 0 files unresolved
(branch merge, don't forget to commit)
a/* b/a b/b b/c
M b/a
M b/b
A b/c
a/c
R a/a
R a/b
R a/c
b/c renamed from a/c:354ae8da6e890359ef49ade27b68bbc361f3ca88
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
resolving manifests
overwrite None partial False
ancestor f9b20c0d4c51 local 55119e611c80+ remote ce36d17b18fb
searching for copies back to rev 1
unmatched files in local:
b/a
b/b
unmatched files in other:
a/c
all copies found (* = to merge, ! = divergent):
b/a -> a/a
b/b -> a/b
checking for directory renames
dir a/ -> b/
file a/c -> b/c
None: local renamed directory to b/c -> d
getting a/c to b/c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
a/* b/a b/b b/c
A b/c
a/c
b/c renamed from a/c:354ae8da6e890359ef49ade27b68bbc361f3ca88