Mercurial > hg
view tests/test-patch-offset.t @ 39224:5e52b6da9c0c
tests: demonstrate a problem with renames on the p2 side of a conversion
I think this is related to the octopus merge being sloppy, and that's having a
cascading affect on the fixup merge. If this change is made on p1 (specifically
with the 'Added parent file' commit), the failure doesn't occur.
The file modification with the rename doesn't seem to be necessary, but it's
what's happening in a production repo where I first noticed, so I left it. This
is an example of the manifest divergence I'd been seeing, which wasn't fixed by
Yuya's recent changes. This is separate from the changelog divergence I was
also seeing[1]. Probably nobody cares about bzr anymore, but this will also
affect git, since the octopus fixup code is in the hg sink.
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2018-August/120473.html
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Mon, 20 Aug 2018 16:19:36 -0400 |
parents | bf953d218a91 |
children | 5abc47d4ca6b |
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$ cat > writepatterns.py <<EOF > import sys > > path = sys.argv[1] > patterns = sys.argv[2:] > > fp = open(path, 'wb') > for pattern in patterns: > count = int(pattern[0:-1]) > char = pattern[-1].encode('utf8') + b'\n' > fp.write(char*count) > fp.close() > EOF prepare repo $ hg init a $ cd a These initial lines of Xs were not in the original file used to generate the patch. So all the patch hunks need to be applied to a constant offset within this file. If the offset isn't tracked then the hunks can be applied to the wrong lines of this file. $ $PYTHON ../writepatterns.py a 34X 10A 1B 10A 1C 10A 1B 10A 1D 10A 1B 10A 1E 10A 1B 10A $ hg commit -Am adda adding a This is a cleaner patch generated via diff In this case it reproduces the problem when the output of hg export does not import patch $ hg import -v -m 'b' -d '2 0' - <<EOF > --- a/a 2009-12-08 19:26:17.000000000 -0800 > +++ b/a 2009-12-08 19:26:17.000000000 -0800 > @@ -9,7 +9,7 @@ > A > A > B > -A > +a > A > A > A > @@ -53,7 +53,7 @@ > A > A > B > -A > +a > A > A > A > @@ -75,7 +75,7 @@ > A > A > B > -A > +a > A > A > A > EOF applying patch from stdin patching file a Hunk #1 succeeded at 43 (offset 34 lines). Hunk #2 succeeded at 87 (offset 34 lines). Hunk #3 succeeded at 109 (offset 34 lines). committing files: a committing manifest committing changelog created 189885cecb41 compare imported changes against reference file $ $PYTHON ../writepatterns.py aref 34X 10A 1B 1a 9A 1C 10A 1B 10A 1D 10A 1B 1a 9A 1E 10A 1B 1a 9A $ diff aref a $ cd ..