tests/test-symlinks

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
#Test bug regarding symlinks that showed up in hg 0.7
#Author: Matthew Elder <[e-mail]>

#make and initialize repo
hg init test; cd test;

#make a file and a symlink
touch foo; ln -s foo bar;

#import with addremove -- symlink walking should _not_ screwup.
hg addremove

#commit -- the symlink should _not_ appear added to dir state
hg commit -m 'initial'

#add a new file so hg will let me commit again
touch bomb

#again, symlink should _not_ show up on dir state
hg addremove

#Assert screamed here before, should go by without consequence
hg commit -m 'is there a bug?'

cd .. ; rm -r test
hg init test; cd test;

mkdir dir
touch a.c dir/a.o dir/b.o
# test what happens if we want to trick hg
hg commit -A -m 0
echo "relglob:*.o" > .hgignore
rm a.c
rm dir/a.o
rm dir/b.o
mkdir dir/a.o
ln -s nonexist dir/b.o
mkfifo a.c
# it should show a.c, dir/a.o and dir/b.o deleted
hg status
hg status a.c

echo '# test absolute path through symlink outside repo'
cd ..
p=`pwd`
hg init x
ln -s x y
cd x
touch f
hg add f
hg status $p/y/f

echo '# try symlink outside repo to file inside'
ln -s x/f ../z
# this should fail
hg status ../z && { echo hg mistakenly exited with status 0; exit 1; } || :

cd .. ; rm -r test
hg init test; cd test;

echo '# try cloning symlink in a subdir'
echo '1. commit a symlink'
mkdir -p a/b/c
cd a/b/c
ln -s /path/to/symlink/source demo
cd ../../..
hg stat
hg commit -A -m 'add symlink in a/b/c subdir'
echo '2. clone it'
cd ..
hg clone test testclone