view tests/test-hook @ 11063:eb23c876c111

tag: warn users about tag/branch possible name conflicts

As reported recently, Mercurial users can easily find confusion when
using a common name for a tag and a branch. It seems reasonable to warn
them about this potential outcome, to avoid that "surprise".
* Explain briefly the issue in "hg help tag"
* Warn when tagging a revision

#!/bin/sh

cp "$TESTDIR"/printenv.py .

# commit hooks can see env vars
hg init a
cd a
echo "[hooks]" > .hg/hgrc
echo 'commit = unset HG_LOCAL HG_TAG; python ../printenv.py commit' >> .hg/hgrc
echo 'commit.b = unset HG_LOCAL HG_TAG; python ../printenv.py commit.b' >> .hg/hgrc
echo 'precommit = unset HG_LOCAL HG_NODE HG_TAG; python ../printenv.py precommit' >> .hg/hgrc
echo 'pretxncommit = unset HG_LOCAL HG_TAG; python ../printenv.py pretxncommit' >> .hg/hgrc
echo 'pretxncommit.tip = hg -q tip' >> .hg/hgrc
echo 'pre-identify = python ../printenv.py pre-identify 1' >> .hg/hgrc
echo 'pre-cat = python ../printenv.py pre-cat' >> .hg/hgrc
echo 'post-cat = python ../printenv.py post-cat' >> .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'

# test generic hooks
hg id
hg cat b

cd ../b
hg pull ../a

# tag hooks can see env vars
cd ../a
echo 'pretag = python ../printenv.py pretag' >> .hg/hgrc
echo 'tag = unset HG_PARENT1 HG_PARENT2; 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

# outgoing hooks work for local clones
cd ..
echo '[hooks]' > a/.hg/hgrc
echo 'preoutgoing = python ../printenv.py preoutgoing' >> a/.hg/hgrc
echo 'outgoing = python ../printenv.py outgoing' >> a/.hg/hgrc
hg clone a c
rm -rf c

# preoutgoing hook can prevent outgoing changes for local clones
echo 'preoutgoing.forbid = python ../printenv.py preoutgoing.forbid 1' >> a/.hg/hgrc
hg clone a zzz
cd b

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 aa > a
hg --traceback commit -d '0 0' -ma 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 -d '0 0' -m 'add foo'
echo >> foo
hg ci --debug -d '0 0' -m 'change foo' | sed -e 's/ at .*>/>/'

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

echo '# test python hook configured with python:[file]:[hook] syntax'
cd ..
mkdir d
cd d
hg init repo
mkdir hooks

cd hooks
cat > testhooks.py <<EOF
def testhook(**args):
    print 'hook works'
EOF
echo '[hooks]' > ../repo/.hg/hgrc
echo "pre-commit.test = python:`pwd`/testhooks.py:testhook" >> ../repo/.hg/hgrc

cd ../repo
hg commit -d '0 0'

cd ../../b
echo '# make sure --traceback works on hook import failure'
cat > importfail.py <<EOF
import somebogusmodule
# dereference something in the module to force demandimport to load it
somebogusmodule.whatever
EOF

echo '[hooks]' > .hg/hgrc
echo 'precommit.importfail = python:importfail.whatever' >> .hg/hgrc

echo a >> a
hg --traceback commit -d '0 0' -ma 2>&1 | egrep '^(exception|Traceback|ImportError)'

echo '# commit and update hooks should run after command completion (issue 1827)'
echo '[hooks]' > .hg/hgrc
echo 'commit = hg id' >> .hg/hgrc
echo 'update = hg id' >> .hg/hgrc
echo bb > a
hg ci -d '0 0' -ma
hg up 0

exit 0