tests/test-rename-after-merge.t
author Manuel Jacob <me@manueljacob.de>
Wed, 24 Jun 2020 14:44:21 +0200
changeset 44998 f2de8f31cb59
parent 44367 9dab3fa64325
child 45827 8d72e29ad1e0
permissions -rw-r--r--
pycompat: use os.fsencode() to re-encode sys.argv Historically, the previous code made sense, as Py_EncodeLocale() and fs.fsencode() could possibly use different encodings. However, this is not the case anymore for Python 3.2, which uses the locale encoding as the filesystem encoding (this is not true for later Python versions, but see below). See https://vstinner.github.io/painful-history-python-filesystem-encoding.html for a source and more background information. Using os.fsencode() is safer, as the documentation for sys.argv says that it can be used to get the original bytes. When doing further changes, the Python developers will take care that this continues to work. One concrete case where os.fsencode() is more correct is when enabling Python's UTF-8 mode. Py_DecodeLocale() will use UTF-8 in this case. Our previous code would have encoded it using the locale encoding (which might be different), whereas os.fsencode() will encode it with UTF-8. Since we don’t claim to support the UTF-8 mode, this is not really a bug and the patch can go to the default branch. It might be a good idea to not commit this to the stable branch, as it could in theory introduce regressions.

Issue746: renaming files brought by the second parent of a merge was
broken.

Create source repository:

  $ hg init t
  $ cd t
  $ echo a > a
  $ hg ci -Am a
  adding a
  $ cd ..

Fork source repository:

  $ hg clone t t2
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd t2
  $ echo b > b
  $ hg ci -Am b
  adding b

Update source repository:

  $ cd ../t
  $ echo a >> a
  $ hg ci -m a2

Merge repositories:

  $ hg pull ../t2
  pulling from ../t2
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets d2ae7f538514
  1 local changesets published
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg st
  M b

Rename b as c:

  $ hg mv b c
  $ hg st
  A c
  R b

Rename back c as b:

  $ hg mv c b
  $ hg st
  M b

  $ cd ..

Issue 1476: renaming a first parent file into another first parent
file while none of them belong to the second parent was broken

  $ hg init repo1476
  $ cd repo1476
  $ echo a > a
  $ hg ci -Am adda
  adding a
  $ echo b1 > b1
  $ echo b2 > b2
  $ hg ci -Am changea
  adding b1
  adding b2
  $ hg up -C 0
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c1 > c1
  $ echo c2 > c2
  $ hg ci -Am addcandd
  adding c1
  adding c2
  created new head

Merge heads:

  $ hg merge
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg mv -Af c1 c2

Commit issue 1476:

  $ hg ci -m merge

  $ hg log -r tip -C -v | grep copies
  copies:      c2 (c1)

  $ hg rollback
  repository tip rolled back to revision 2 (undo commit)
  working directory now based on revisions 2 and 1

  $ hg up -C .
  2 files updated, 0 files merged, 2 files removed, 0 files unresolved

Merge heads again:

  $ hg merge
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg mv -Af b1 b2

Commit issue 1476 with a rename on the other side:

  $ hg ci -m merge

  $ hg log -r tip -C -v | grep copies
  copies:      b2 (b1)

Test marking/unmarking copies in merge commit

  $ hg copy --forget --at-rev . b2
  abort: cannot mark/unmark copy in merge commit
  [255]

  $ hg copy --after --at-rev . b1 b2
  abort: cannot mark/unmark copy in merge commit
  [255]

  $ cd ..