view tests/test-pathconflicts-merge.t @ 42341:27d6956d386b

match: use '' instead of '.' for root directory (API)

I think '' is generally a better value for the root directory than '.'
is. For example, os.path.join('', 'foo') => 'foo', while
os.path.join('.', 'foo') => './foo'.

This patch mostly makes it so we use '' internally in
match.py. However, it also affects the API in visitdir(),
visitchildrenset() and files(). The two former now also accept '' as
input. I've updated the callers of these methods. I've also added a
deprecation warning for passing '.' (for external callers). The only
caller I could find that was affected by files() returning '' instead
of '.' was in dirstate.walk(). I've updated that.

The next few patches show some workarounds we can remove by using ''
instead of '.'.

Differential Revision: https://phab.mercurial-scm.org/D6401

Path conflict checking is currently disabled by default because of issue5716.
Turn it on for this test.

  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > merge.checkpathconflicts=True
  > EOF

  $ hg init repo
  $ cd repo
  $ echo base > base
  $ hg add base
  $ hg commit -m "base"
  $ hg bookmark -i base
  $ mkdir a
  $ echo 1 > a/b
  $ hg add a/b
  $ hg commit -m "file"
  $ hg bookmark -i file
  $ echo 2 > a/b
  $ hg commit -m "file2"
  $ hg bookmark -i file2
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

#if symlink
  $ mkdir a
  $ ln -s c a/b
  $ hg add a/b
  $ hg commit -m "link"
  created new head
#else
  $ hg import -q --bypass - <<EOF
  > # HG changeset patch
  > link
  > 
  > diff --git a/a/b b/a/b
  > new file mode 120000
  > --- /dev/null
  > +++ b/a/b
  > @@ -0,0 +1,1 @@
  > +c
  > \ No newline at end of file
  > EOF
  $ hg up -q
#endif

  $ hg bookmark -i link
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkdir -p a/b/c
  $ echo 2 > a/b/c/d
  $ hg add a/b/c/d
  $ hg commit -m "dir"
  created new head
  $ hg bookmark -i dir

Merge - local file conflicts with remote directory

  $ hg up file
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (activating bookmark file)
  $ hg bookmark -i
  $ hg merge --verbose dir
  resolving manifests
  a/b: path conflict - a file or link has the same name as a directory
  the local file has been renamed to a/b~0ed027b96f31
  resolve manually then use 'hg resolve --mark a/b'
  moving a/b to a/b~0ed027b96f31
  getting a/b/c/d
  1 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ hg status
  M a/b/c/d
  A a/b~0ed027b96f31
  R a/b
  $ hg resolve --all
  a/b: path conflict must be resolved manually
  $ hg forget a/b~0ed027b96f31 && rm a/b~0ed027b96f31
  $ hg resolve --mark a/b
  (no more unresolved files)
  $ hg commit -m "merge file and dir (deleted file)"

Merge - local symlink conflicts with remote directory

  $ hg up link
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (activating bookmark link)
  $ hg bookmark -i
  $ hg merge dir
  a/b: path conflict - a file or link has the same name as a directory
  the local file has been renamed to a/b~2ea68033e3be
  resolve manually then use 'hg resolve --mark a/b'
  1 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ hg status
  M a/b/c/d
  A a/b~2ea68033e3be
  R a/b
  $ hg resolve --list
  P a/b
  $ hg resolve --all
  a/b: path conflict must be resolved manually
  $ hg mv a/b~2ea68033e3be a/b.old
  $ hg resolve --mark a/b
  (no more unresolved files)
  $ hg resolve --list
  R a/b
  $ hg commit -m "merge link and dir (renamed link)"

Merge - local directory conflicts with remote file or link

  $ hg up dir
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (activating bookmark dir)
  $ hg bookmark -i
  $ hg merge file
  a/b: path conflict - a file or link has the same name as a directory
  the remote file has been renamed to a/b~0ed027b96f31
  resolve manually then use 'hg resolve --mark a/b'
  1 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ hg status
  A a/b~0ed027b96f31
  $ hg resolve --all
  a/b: path conflict must be resolved manually
  $ hg mv a/b~0ed027b96f31 a/b/old-b
  $ hg resolve --mark a/b
  (no more unresolved files)
  $ hg commit -m "merge dir and file (move file into dir)"
  created new head
  $ hg merge file2
  merging a/b/old-b and a/b to a/b/old-b
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat a/b/old-b
  2
  $ hg commit -m "merge file2 (copytrace tracked rename)"
  $ hg merge link
  a/b: path conflict - a file or link has the same name as a directory
  the remote file has been renamed to a/b~2ea68033e3be
  resolve manually then use 'hg resolve --mark a/b'
  1 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ hg mv a/b~2ea68033e3be a/b.old

#if symlink
  $ readlink.py a/b.old
  a/b.old -> c
#else
  $ cat a/b.old
  c (no-eol)
#endif

  $ hg resolve --mark a/b
  (no more unresolved files)
  $ hg commit -m "merge link (rename link)"