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convert: fix mercurial_sink.putcommit Changeset 4ebc8693ce72 added some code to putcommit to avoid creating a revision that touches no files, but this can break regular conversions from some repositories: - conceptually, since we're converting a repo, we should try to make the new hg repo as similar as possible to the original repo - we should create a new changeset, even if the original revision didn't touch any files (maybe the commit message had some important bit); - even if a "regular" revision that doesn't touch any file may seem weird (and maybe even broken), it's completely legitimate for a merge revision to not touch any file, and, if we just skip it, the converted repo will end up with wrong history and possibly an extra head. As an example, say the crew and main hg repos are sync'ed. Somebody sends an important patch to the mailing list. Matt quickly applies and pushes it. But at the same time somebody also applies it to crew and pushes it. Suppose the commit message ended up being a bit different (say, there was a typo and somebody didn't fix it) or that the date ended up being different (because of different patch-applying scripts): the changeset hashes will be different, but the manifests will be the same. Since both changesets were pushed to public repos, it's hard to recall them. If both are merged, the manifest from the resulting merge revision will have the exact same contents as its parents - i.e. the merge revision really doesn't touch any file at all. To keep the file filtering stuff "working", the generic code was changed to skip empty revisions if we're filtering the repo, fixing a bug in the process (we want parents[0] instead of tip).
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Fri, 17 Aug 2007 20:18:05 -0300
parents 438603c1eb6f
children 7e6138cb8d38
line wrap: on
line source

# rename a single file
A d2/c
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename --after a single file
A d2/c
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move a single file to an existing directory
A d2/a1
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move --after a single file to an existing directory
A d2/a1
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename a file using a relative path
A d1/d11/e
  d2/b
R d2/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename --after a file using a relative path
A d1/d11/e
  d2/b
R d2/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# rename directory d1 as d3
copying d1/a to d3/a
copying d1/b to d3/b
copying d1/ba to d3/ba
copying d1/d11/a1 to d3/d11/a1
removing d1/a
removing d1/b
removing d1/ba
removing d1/d11/a1
A d3/a
  d1/a
A d3/b
  d1/b
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# rename --after directory d1 as d3
copying d1/a to d3/a
copying d1/b to d3/b
copying d1/ba to d3/ba
copying d1/d11/a1 to d3/d11/a1
removing d1/a
removing d1/b
removing d1/ba
removing d1/d11/a1
A d3/a
  d1/a
A d3/b
  d1/b
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a directory using a relative path
copying ../d1/d11/a1 to d3/d11/a1
removing ../d1/d11/a1
A d2/d3/d11/a1
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move --after a directory using a relative path
copying ../d1/d11/a1 to d3/d11/a1
removing ../d1/d11/a1
A d2/d3/d11/a1
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move directory d1/d11 to an existing directory d2 (removes empty d1)
copying d1/d11/a1 to d2/d11/a1
removing d1/d11/a1
A d2/d11/a1
  d1/d11/a1
R d1/d11/a1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# move directories d1 and d2 to a new directory d3
copying d1/a to d3/d1/a
copying d1/b to d3/d1/b
copying d1/ba to d3/d1/ba
copying d1/d11/a1 to d3/d1/d11/a1
copying d2/b to d3/d2/b
removing d1/a
removing d1/b
removing d1/ba
removing d1/d11/a1
removing d2/b
A d3/d1/a
  d1/a
A d3/d1/b
  d1/b
A d3/d1/ba
  d1/ba
A d3/d1/d11/a1
  d1/d11/a1
A d3/d2/b
  d2/b
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
R d2/b
5 files updated, 0 files merged, 5 files removed, 0 files unresolved
# move --after directories d1 and d2 to a new directory d3
copying d1/a to d3/d1/a
copying d1/b to d3/d1/b
copying d1/ba to d3/d1/ba
copying d1/d11/a1 to d3/d1/d11/a1
copying d2/b to d3/d2/b
removing d1/a
removing d1/b
removing d1/ba
removing d1/d11/a1
removing d2/b
A d3/d1/a
  d1/a
A d3/d1/b
  d1/b
A d3/d1/ba
  d1/ba
A d3/d1/d11/a1
  d1/d11/a1
A d3/d2/b
  d2/b
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
R d2/b
5 files updated, 0 files merged, 5 files removed, 0 files unresolved
# move everything under directory d1 to existing directory d2, do not
# overwrite existing files (d2/b)
d2/b: not overwriting - file exists
copying d1/d11/a1 to d2/d11/a1
removing d1/d11/a1
A d2/a
  d1/a
A d2/ba
  d1/ba
A d2/d11/a1
  d1/d11/a1
R d1/a
R d1/ba
R d1/d11/a1
1c1
< d1/b
---
> d2/b
3 files updated, 0 files merged, 3 files removed, 0 files unresolved
# attempt to move potentially more than one file into a non-existent
# directory
abort: with multiple sources, destination must be an existing directory
# move every file under d1 to d2/d21 (glob)
copying d1/a to d2/d21/a
copying d1/b to d2/d21/b
copying d1/ba to d2/d21/ba
copying d1/d11/a1 to d2/d21/a1
removing d1/a
removing d1/b
removing d1/ba
removing d1/d11/a1
A d2/d21/a
  d1/a
A d2/d21/a1
  d1/d11/a1
A d2/d21/b
  d1/b
A d2/d21/ba
  d1/ba
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move --after some files under d1 to d2/d21 (glob)
copying d1/a to d2/d21/a
copying d1/d11/a1 to d2/d21/a1
removing d1/a
removing d1/d11/a1
A d2/d21/a
  d1/a
A d2/d21/a1
  d1/d11/a1
R d1/a
R d1/d11/a1
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
# move every file under d1 starting with an 'a' to d2/d21 (regexp)
copying d1/a to d2/d21/a
copying d1/d11/a1 to d2/d21/a1
removing d1/a
removing d1/d11/a1
A d2/d21/a
  d1/a
A d2/d21/a1
  d1/d11/a1
R d1/a
R d1/d11/a1
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
# attempt to overwrite an existing file
d1/ca: not overwriting - file exists
? d1/ca
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
# forced overwrite of an existing file
A d1/ca
  d1/ba
R d1/ba
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# replace a symlink with a file
A d1/ca
  d1/ba
R d1/ba
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# do not copy more than one source file to the same destination file
copying d1/d11/a1 to d3/d11/a1
d3/b: not overwriting - d2/b collides with d1/b
removing d1/d11/a1
A d3/a
  d1/a
A d3/b
  d1/b
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a whole subtree with "hg rename ."
copying a to ../d3/d1/a
copying b to ../d3/d1/b
copying ba to ../d3/d1/ba
copying d11/a1 to ../d3/d1/d11/a1
removing a
removing b
removing ba
removing d11/a1
A d3/d1/a
  d1/a
A d3/d1/b
  d1/b
A d3/d1/ba
  d1/ba
A d3/d1/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move a whole subtree with "hg rename --after ."
copying a to ../d3/a
copying b to ../d3/b
copying ba to ../d3/ba
copying d11/a1 to ../d3/d11/a1
removing a
removing b
removing ba
removing d11/a1
A d3/a
  d1/a
A d3/b
  d1/b
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# move the parent tree with "hg rename .."
copying ../a to ../../d3/a
copying ../b to ../../d3/b
copying ../ba to ../../d3/ba
copying a1 to ../../d3/d11/a1
removing ../a
removing ../b
removing ../ba
removing a1
A d3/a
  d1/a
A d3/b
  d1/b
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 4 files removed, 0 files unresolved
# skip removed files
copying d1/a to d3/a
copying d1/ba to d3/ba
copying d1/d11/a1 to d3/d11/a1
removing d1/a
removing d1/ba
removing d1/d11/a1
A d3/a
  d1/a
A d3/ba
  d1/ba
A d3/d11/a1
  d1/d11/a1
R d1/a
R d1/b
R d1/ba
R d1/d11/a1
4 files updated, 0 files merged, 3 files removed, 0 files unresolved
# transitive rename
A d1/bc
  d1/b
R d1/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# transitive rename --after
A d1/bc
  d1/b
R d1/b
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
# idempotent renames (d1/b -> d1/bb followed by d1/bb -> d1/b)
M d1/b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
# check illegal path components
abort: path contains illegal component: .hg/foo
abort: ../foo not under root
abort: path contains illegal component: .hg/foo
! d1/d11/a1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
abort: path contains illegal component: .hg/a1
abort: ../a1 not under root
abort: path contains illegal component: .hg/a1
! d1/d11/a1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
abort: path contains illegal component: .hg/foo
abort: ../../../foo not under root