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.
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
changeset: 2:62ec0e86d1e5
tag: tip
parent: 0:567dde5e6e98
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: add empty3
changeset: 1:41ab7b321727
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: add empty2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
M empty2
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty1
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty2
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty3