tests/test-hook

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

cp "$TESTDIR"/printenv.py .

# commit hooks can see env vars
hg init a
cd a
echo "[hooks]" > .hg/hgrc
echo 'commit = python ../printenv.py commit' >> .hg/hgrc
echo 'commit.b = python ../printenv.py commit.b' >> .hg/hgrc
echo 'precommit = python ../printenv.py precommit' >> .hg/hgrc
echo 'pretxncommit = python ../printenv.py pretxncommit' >> .hg/hgrc
echo 'pretxncommit.tip = hg -q tip' >> .hg/hgrc
echo a > a
hg add a
hg commit -m a -d "1000000 0"

hg clone . ../b
cd ../b

# changegroup hooks can see env vars
echo '[hooks]' > .hg/hgrc
echo 'prechangegroup = python ../printenv.py prechangegroup' >> .hg/hgrc
echo 'changegroup = python ../printenv.py changegroup' >> .hg/hgrc
echo 'incoming = python ../printenv.py incoming' >> .hg/hgrc

# pretxncommit and commit hooks can see both parents of merge
cd ../a
echo b >> a
hg commit -m a1 -d "1 0"
hg update -C 0
echo b > b
hg add b
hg commit -m b -d '1 0'
hg merge 1
hg commit -m merge -d '2 0'

cd ../b
hg pull ../a

# tag hooks can see env vars
cd ../a
echo 'pretag = python ../printenv.py pretag' >> .hg/hgrc
echo 'tag = python ../printenv.py tag' >> .hg/hgrc
hg tag -d '3 0' a
hg tag -l la

# pretag hook can forbid tagging
echo 'pretag.forbid = python ../printenv.py pretag.forbid 1' >> .hg/hgrc
hg tag -d '4 0' fa
hg tag -l fla

# pretxncommit hook can see changeset, can roll back txn, changeset
# no more there after
echo 'pretxncommit.forbid0 = hg tip -q' >> .hg/hgrc
echo 'pretxncommit.forbid1 = python ../printenv.py pretxncommit.forbid 1' >> .hg/hgrc
echo z > z
hg add z
hg -q tip
hg commit -m 'fail' -d '4 0'
hg -q tip

# precommit hook can prevent commit
echo 'precommit.forbid = python ../printenv.py precommit.forbid 1' >> .hg/hgrc
hg commit -m 'fail' -d '4 0'
hg -q tip

# preupdate hook can prevent update
echo 'preupdate = python ../printenv.py preupdate' >> .hg/hgrc
hg update 1

# update hook
echo 'update = python ../printenv.py update' >> .hg/hgrc
hg update

# prechangegroup hook can prevent incoming changes
cd ../b
hg -q tip
echo '[hooks]' > .hg/hgrc
echo 'prechangegroup.forbid = python ../printenv.py prechangegroup.forbid 1' >> .hg/hgrc
hg pull ../a

# pretxnchangegroup hook can see incoming changes, can roll back txn,
# incoming changes no longer there after
echo '[hooks]' > .hg/hgrc
echo 'pretxnchangegroup.forbid0 = hg tip -q' >> .hg/hgrc
echo 'pretxnchangegroup.forbid1 = python ../printenv.py pretxnchangegroup.forbid 1' >> .hg/hgrc
hg pull ../a
hg -q tip

# outgoing hooks can see env vars
rm .hg/hgrc
echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing = python ../printenv.py preoutgoing' >> ../a/.hg/hgrc
echo 'outgoing = python ../printenv.py outgoing' >> ../a/.hg/hgrc
hg pull ../a
hg rollback

# preoutgoing hook can prevent outgoing changes
echo 'preoutgoing.forbid = python ../printenv.py preoutgoing.forbid 1' >> ../a/.hg/hgrc
hg pull ../a

cat > hooktests.py <<EOF
from mercurial import util

uncallable = 0

def printargs(args):
    args.pop('ui', None)
    args.pop('repo', None)
    a = list(args.items())
    a.sort()
    print 'hook args:'
    for k, v in a:
       print ' ', k, v

def passhook(**args):
    printargs(args)

def failhook(**args):
    printargs(args)
    return True

class LocalException(Exception):
    pass

def raisehook(**args):
    raise LocalException('exception from hook')

def aborthook(**args):
    raise util.Abort('raise abort from hook')

def brokenhook(**args):
    return 1 + {}

class container:
    unreachable = 1
EOF

echo '# test python hooks'
PYTHONPATH="`pwd`:$PYTHONPATH"
export PYTHONPATH

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.broken = python:hooktests.brokenhook' >> ../a/.hg/hgrc
hg pull ../a 2>&1 | grep 'raised an exception'

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.raise = python:hooktests.raisehook' >> ../a/.hg/hgrc
hg pull ../a 2>&1 | grep 'raised an exception'

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.abort = python:hooktests.aborthook' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.fail = python:hooktests.failhook' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.uncallable = python:hooktests.uncallable' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.nohook = python:hooktests.nohook' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.nomodule = python:nomodule' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.badmodule = python:nomodule.nowhere' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.unreachable = python:hooktests.container.unreachable' >> ../a/.hg/hgrc
hg pull ../a

echo '[hooks]' > ../a/.hg/hgrc
echo 'preoutgoing.pass = python:hooktests.passhook' >> ../a/.hg/hgrc
hg pull ../a

echo '# make sure --traceback works'
echo '[hooks]' > .hg/hgrc
echo 'commit.abort = python:hooktests.aborthook' >> .hg/hgrc

echo a >> a
hg --traceback commit -A -m a 2>&1 | grep '^Traceback'

cd ..
hg init c
cd c

cat > hookext.py <<EOF
def autohook(**args):
    print "Automatically installed hook"

def reposetup(ui, repo):
    repo.ui.setconfig("hooks", "commit.auto", autohook)
EOF
echo '[extensions]' >> .hg/hgrc
echo 'hookext = hookext.py' >> .hg/hgrc

touch foo
hg add foo
hg ci -m 'add foo'
echo >> foo
hg ci --debug -m 'change foo' | sed -e 's/ at .*>/>/'

hg showconfig hooks | sed -e 's/ at .*>/>/'

exit 0