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.
hg status in repo root:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in repo root:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status in a:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in a:
? 1/in_a_1
? in_a
hg status .. in a:
? 1/in_a_1
? in_a
? ../b/1/in_b_1
? ../b/2/in_b_2
? ../b/in_b
? ../in_root
hg status in b:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in b:
? 1/in_b_1
? 2/in_b_2
? in_b
hg status .. in b:
? ../a/1/in_a_1
? ../a/in_a
? 1/in_b_1
? 2/in_b_2
? in_b
? ../in_root
hg status in a/1:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in a/1:
? in_a_1
hg status .. in a/1:
? in_a_1
? ../in_a
hg status in b/1:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in b/1:
? in_b_1
hg status .. in b/1:
? in_b_1
? ../2/in_b_2
? ../in_b
hg status in b/2:
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in b/2:
? in_b_2
hg status .. in b/2:
? ../1/in_b_1
? in_b_2
? ../in_b
adding .hgignore
adding deleted
adding modified
adding removed
hg status:
A added
R removed
! deleted
? unknown
hg status modified added removed deleted unknown never-existed ignored:
never-existed: No such file or directory
A added
R removed
! deleted
? ignored
? unknown
hg status -C:
A added
A copied
modified
R removed
! deleted
? unknown
hg status -A:
A added
A copied
modified
R removed
! deleted
? unknown
I ignored
C .hgignore
C modified