tests/test-symlinks

inotify: proper fix for issue1542 (partially reverting 67e59a9886d5)

issue1542 description:
Unknown files (?) placed in a directory are still marked as present and unknown
when the containing directory is moved out of the repository scope.

Why 67e59a9886d5 was bad:
* When the problem we're addressing only deals with unknown files, the fix to
  updatestatus applies for all statuses
* The only reason to move the call schedule_work(wpath, 'd') seems to be that
  it allowed an updatestatus call on the deleted directory, in deleted(). But
  deleted() should not be called on directories in the first place.
* After fixing an independant issue (1371), test-inotify-issue1542 was failing

Fix:
When processing a deletion of a directory, walk the tree of the unknown files
and remove the entries from repowatcher.
This step does not need to be added in the generic scan() routine: it is only
necessary on a directory deletion.

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

"$TESTDIR/hghave" symlink || exit 80

#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

echo '# git symlink diff'
cd testclone
hg diff --git -r null:tip
hg export --git tip > ../sl.diff
echo '# import git symlink diff'
hg rm a/b/c/demo
hg commit -m'remove link'
hg import ../sl.diff
hg diff --git -r 1:tip