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.
#!/bin/sh
mkdir a
cd a
hg init
echo foo > t1
hg add t1
hg commit -m "1" -d "1000000 0"
cd ..
hg clone a b
cd a
echo foo > t2
hg add t2
hg commit -m "2" -d "1000000 0"
cd ../b
echo foo > t3
hg add t3
hg commit -m "3" -d "1000000 0"
hg push ../a
hg pull ../a
hg push ../a
hg merge
hg commit -m "4" -d "1000000 0"
hg push ../a
cd ..
hg init c
cd c
for i in 0 1 2; do
echo $i >> foo
hg ci -Am $i -d "1000000 0"
done
cd ..
hg clone c d
cd d
for i in 0 1; do
hg co -C $i
echo d-$i >> foo
hg ci -m d-$i -d "1000000 0"
done
HGMERGE=true hg merge 3
hg ci -m c-d -d "1000000 0"
hg push ../c; echo $?
hg push -r 2 ../c; echo $?
hg push -r 3 ../c; echo $?
hg push -r 3 -r 4 ../c; echo $?
hg push -f -r 3 -r 4 ../c; echo $?
hg push -r 5 ../c; echo $?
# issue 450
hg init ../e
hg push -r 0 ../e ; echo $?
hg push -r 1 ../e ; echo $?
exit 0