Teach walk code about absolute paths.
The first consequence of this is that absolute and relative paths now
all work in the same way. The second is that paths that lie outside
the repository now cause an error to be reported, instead of something
arbitrary and expensive being done.
Internally, all of the serious work is in the util package. The new
canonpath function takes an arbitrary path and either returns a
canonical path or raises an error. Because it needs to know where the
repository root is, it must be fed a repository or dirstate object, which
has given commands.matchpats and friends a new parameter to pass along.
The util.matcher function uses this to canonicalise globs and relative
path names.
Meanwhile, I've moved the Abort exception from commands to util, and
killed off the redundant util.CommandError exception.
+ hg init
+ hg add foo bar
+ hg commit -m commit text -d 0 0
+ hg clone A1 B1
+ hg remove bar
+ hg commit -m commit test -d 0 0
+ hg commit -m commit test -d 0 0
+ hg clone A1 A2
+ hg clone B1 B2
+ hg pull ../B1
pulling from ../B1
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
(run 'hg update' to get a working copy)
+ hg update -m
+ hg commit -m commit test -d 0 0
bar should remain deleted.
+ hg manifest
6b70e9e451a5a33faad7bbebe627e46b937b7364 644 foo
+ hg pull ../A2
pulling from ../A2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
(run 'hg update' to get a working copy)
+ hg update -m
+ hg commit -m commit test -d 0 0
bar should remain deleted.
+ hg manifest
6b70e9e451a5a33faad7bbebe627e46b937b7364 644 foo