purge: abort with missing files avoiding problems with name-mangling fs
In a name mangling filesystem (e.g. a case insensitive one)
dirstate.walk() can yield filenames different from the ones
stored in the dirstate. This already confuses the status and
add commands, but with purge this may cause data loss.
To prevent this purge refuses to work if there are missing
files and has a 'force' option if the user knows it is safe.
Even with the force option purge checks if any of the missing
files is still available in the working dir: if so there
may be some problem with the underlying filesystem, so it
unconditionally aborts.
% commit date test
abort: impossible time zone offset: 4444444
transaction abort!
rollback completed
abort: invalid date: '1\t15.1'
transaction abort!
rollback completed
abort: invalid date: 'foo bar'
transaction abort!
rollback completed
nothing changed
% partial commit test
trouble committing bar!
abort: No such file or directory: .../test/bar
adding dir/file
dir/file
adding dir.file
abort: no match under directory .../test/dir!
abort: no match under directory .../test/bleh!
abort: no match under directory .../test/dir2!
dir/file
does-not-exist: No such file or directory
abort: file .../test/does-not-exist not found!
abort: file .../test/baz not tracked!
abort: file .../test/quux not tracked!
dir/file
% partial subdir commit test
adding bar/bar
adding foo/foo
% subdir log 1
changeset: 0:6ef3cb06bb80
user: test
date: Mon Jan 12 13:46:40 1970 +0000
files: foo/foo
description:
commit-subdir-1
% subdir log 2
changeset: 1:f2e51572cf5a
tag: tip
user: test
date: Mon Jan 12 13:46:41 1970 +0000
files: bar/bar
description:
commit-subdir-2
% full log
changeset: 1:f2e51572cf5a
tag: tip
user: test
date: Mon Jan 12 13:46:41 1970 +0000
files: bar/bar
description:
commit-subdir-2
changeset: 0:6ef3cb06bb80
user: test
date: Mon Jan 12 13:46:40 1970 +0000
files: foo/foo
description:
commit-subdir-1
% dot and subdir commit test
% full log
changeset: 1:d9180e04fa8a
tag: tip
user: test
date: Sat Jan 24 03:33:20 1970 +0000
files: foo/plain-file
description:
commit-foo-dot
changeset: 0:80b572aaf098
user: test
date: Mon Jan 12 13:46:40 1970 +0000
files: foo/plain-file
description:
commit-foo-subdir
% subdir log
changeset: 1:d9180e04fa8a
tag: tip
user: test
date: Sat Jan 24 03:33:20 1970 +0000
summary: commit-foo-dot
changeset: 0:80b572aaf098
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: commit-foo-subdir