annotate tests/test-hook.t @ 14164:cb98fed52495

discovery: add new set-based discovery

Adds a new discovery method based on repeatedly sampling the still
undecided subset of the local node graph to determine the set of nodes
common to both the client and the server.

For small differences between client and server, it uses about the same
or slightly fewer roundtrips than the old tree-based discovery. For
larger differences, it typically reduces the number of roundtrips
drastically (from 150 to 4, for instance).

The old discovery code now lives in treediscovery.py, the new code is
in setdiscovery.py.

Still missing is a hook for extensions to contribute nodes to the
initial sample. For instance, Augie's remotebranches could contribute
the last known state of the server's heads.

Credits for the actual sampler and computing common heads instead of
bases go to Benoit Boissinot.

commit hooks can see env vars

  $ hg init a
  $ cd a
  $ echo "[hooks]" > .hg/hgrc
  $ echo 'commit = unset HG_LOCAL HG_TAG; python "$TESTDIR"/printenv.py commit' >> .hg/hgrc
  $ echo 'commit.b = unset HG_LOCAL HG_TAG; python "$TESTDIR"/printenv.py commit.b' >> .hg/hgrc
  $ echo 'precommit = unset HG_LOCAL HG_NODE HG_TAG; python "$TESTDIR"/printenv.py precommit' >> .hg/hgrc
  $ echo 'pretxncommit = unset HG_LOCAL HG_TAG; python "$TESTDIR"/printenv.py pretxncommit' >> .hg/hgrc
  $ echo 'pretxncommit.tip = hg -q tip' >> .hg/hgrc
  $ echo 'pre-identify = python "$TESTDIR"/printenv.py pre-identify 1' >> .hg/hgrc
  $ echo 'pre-cat = python "$TESTDIR"/printenv.py pre-cat' >> .hg/hgrc
  $ echo 'post-cat = python "$TESTDIR"/printenv.py post-cat' >> .hg/hgrc
  $ echo a > a
  $ hg add a
  $ hg commit -m a
  precommit hook: HG_PARENT1=0000000000000000000000000000000000000000 
  pretxncommit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000 HG_PENDING=$TESTTMP/a 
  0:cb9a9f314b8b
  commit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000 
  commit.b hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000 

  $ hg clone . ../b
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd ../b

changegroup hooks can see env vars

  $ echo '[hooks]' > .hg/hgrc
  $ echo 'prechangegroup = python "$TESTDIR"/printenv.py prechangegroup' >> .hg/hgrc
  $ echo 'changegroup = python "$TESTDIR"/printenv.py changegroup' >> .hg/hgrc
  $ echo 'incoming = python "$TESTDIR"/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"
  precommit hook: HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  pretxncommit hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PENDING=$TESTTMP/a 
  1:ab228980c14d
  commit hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  commit.b hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  $ hg update -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo b > b
  $ hg add b
  $ hg commit -m b -d '1 0'
  precommit hook: HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  pretxncommit hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PENDING=$TESTTMP/a 
  2:ee9deb46ab31
  commit hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  commit.b hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b 
  created new head
  $ hg merge 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m merge -d '2 0'
  precommit hook: HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd 
  pretxncommit hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd HG_PENDING=$TESTTMP/a 
  3:07f3376c1e65
  commit hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd 
  commit.b hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd 

test generic hooks

  $ hg id
  pre-identify hook: HG_ARGS=id HG_OPTS={'bookmarks': None, 'branch': None, 'id': None, 'num': None, 'rev': '', 'tags': None} HG_PATS=[] 
  warning: pre-identify hook exited with status 1
  [1]
  $ hg cat b
  pre-cat hook: HG_ARGS=cat b HG_OPTS={'decode': None, 'exclude': [], 'include': [], 'output': '', 'rev': ''} HG_PATS=['b'] 
  b
  post-cat hook: HG_ARGS=cat b HG_OPTS={'decode': None, 'exclude': [], 'include': [], 'output': '', 'rev': ''} HG_PATS=['b'] HG_RESULT=0 

  $ cd ../b
  $ hg pull ../a
  pulling from ../a
  searching for changes
  prechangegroup hook: HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 2 changes to 2 files
  changegroup hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  incoming hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  incoming hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  incoming hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  (run 'hg update' to get a working copy)

tag hooks can see env vars

  $ cd ../a
  $ echo 'pretag = python "$TESTDIR"/printenv.py pretag' >> .hg/hgrc
  $ echo 'tag = unset HG_PARENT1 HG_PARENT2; python "$TESTDIR"/printenv.py tag' >> .hg/hgrc
  $ hg tag -d '3 0' a
  pretag hook: HG_LOCAL=0 HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_TAG=a 
  precommit hook: HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2 
  pretxncommit hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PENDING=$TESTTMP/a 
  4:539e4b31b6dc
  commit hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2 
  commit.b hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2 
  tag hook: HG_LOCAL=0 HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_TAG=a 
  $ hg tag -l la
  pretag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=la 
  tag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=la 

pretag hook can forbid tagging

  $ echo 'pretag.forbid = python "$TESTDIR"/printenv.py pretag.forbid 1' >> .hg/hgrc
  $ hg tag -d '4 0' fa
  pretag hook: HG_LOCAL=0 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fa 
  pretag.forbid hook: HG_LOCAL=0 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fa 
  abort: pretag.forbid hook exited with status 1
  [255]
  $ hg tag -l fla
  pretag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fla 
  pretag.forbid hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fla 
  abort: pretag.forbid hook exited with status 1
  [255]

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 "$TESTDIR"/printenv.py pretxncommit.forbid 1' >> .hg/hgrc
  $ echo z > z
  $ hg add z
  $ hg -q tip
  4:539e4b31b6dc
  $ hg commit -m 'fail' -d '4 0'
  precommit hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 
  pretxncommit hook: HG_NODE=6f611f8018c10e827fee6bd2bc807f937e761567 HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/a 
  5:6f611f8018c1
  5:6f611f8018c1
  pretxncommit.forbid hook: HG_NODE=6f611f8018c10e827fee6bd2bc807f937e761567 HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/a 
  transaction abort!
  rollback completed
  abort: pretxncommit.forbid1 hook exited with status 1
  [255]
  $ hg -q tip
  4:539e4b31b6dc

precommit hook can prevent commit

  $ echo 'precommit.forbid = python "$TESTDIR"/printenv.py precommit.forbid 1' >> .hg/hgrc
  $ hg commit -m 'fail' -d '4 0'
  precommit hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 
  precommit.forbid hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 
  abort: precommit.forbid hook exited with status 1
  [255]
  $ hg -q tip
  4:539e4b31b6dc

preupdate hook can prevent update

  $ echo 'preupdate = python "$TESTDIR"/printenv.py preupdate' >> .hg/hgrc
  $ hg update 1
  preupdate hook: HG_PARENT1=ab228980c14d 
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

update hook

  $ echo 'update = python "$TESTDIR"/printenv.py update' >> .hg/hgrc
  $ hg update
  preupdate hook: HG_PARENT1=539e4b31b6dc 
  update hook: HG_ERROR=0 HG_PARENT1=539e4b31b6dc 
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

pushkey hook

  $ echo 'pushkey = python "$TESTDIR"/printenv.py pushkey' >> .hg/hgrc
  $ cd ../b
  $ hg bookmark -r null foo
  $ hg push -B foo ../a
  pushing to ../a
  searching for changes
  no changes found
  exporting bookmark foo
  pushkey hook: HG_KEY=foo HG_NAMESPACE=bookmarks HG_NEW=0000000000000000000000000000000000000000 HG_RET=1 
  $ cd ../a

listkeys hook

  $ echo 'listkeys = python "$TESTDIR"/printenv.py listkeys' >> .hg/hgrc
  $ hg bookmark -r null bar
  $ cd ../b
  $ hg pull -B bar ../a
  pulling from ../a
  listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'} 
  no changes found
  listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'} 
  importing bookmark bar
  $ cd ../a

test that prepushkey can prevent incoming keys

  $ echo 'prepushkey = python "$TESTDIR"/printenv.py prepushkey.forbid 1' >> .hg/hgrc
  $ cd ../b
  $ hg bookmark -r null baz
  $ hg push -B baz ../a
  pushing to ../a
  searching for changes
  no changes found
  listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'} 
  listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'} 
  exporting bookmark baz
  prepushkey.forbid hook: HG_KEY=baz HG_NAMESPACE=bookmarks HG_NEW=0000000000000000000000000000000000000000 
  abort: prepushkey hook exited with status 1
  [255]
  $ cd ../a

test that prelistkeys can prevent listing keys

  $ echo 'prelistkeys = python "$TESTDIR"/printenv.py prelistkeys.forbid 1' >> .hg/hgrc
  $ hg bookmark -r null quux
  $ cd ../b
  $ hg pull -B quux ../a
  pulling from ../a
  prelistkeys.forbid hook: HG_NAMESPACE=bookmarks 
  abort: prelistkeys hook exited with status 1
  [255]
  $ cd ../a

prechangegroup hook can prevent incoming changes

  $ cd ../b
  $ hg -q tip
  3:07f3376c1e65
  $ echo '[hooks]' > .hg/hgrc
  $ echo 'prechangegroup.forbid = python "$TESTDIR"/printenv.py prechangegroup.forbid 1' >> .hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  prechangegroup.forbid hook: HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  abort: prechangegroup.forbid hook exited with status 1
  [255]

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 "$TESTDIR"/printenv.py pretxnchangegroup.forbid 1' >> .hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  4:539e4b31b6dc
  pretxnchangegroup.forbid hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/b HG_SOURCE=pull HG_URL=file:$TESTTMP/a 
  transaction abort!
  rollback completed
  abort: pretxnchangegroup.forbid1 hook exited with status 1
  [255]
  $ hg -q tip
  3:07f3376c1e65

outgoing hooks can see env vars

  $ rm .hg/hgrc
  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing = python "$TESTDIR"/printenv.py preoutgoing' >> ../a/.hg/hgrc
  $ echo 'outgoing = python "$TESTDIR"/printenv.py outgoing' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  preoutgoing hook: HG_SOURCE=pull 
  adding changesets
  outgoing hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_SOURCE=pull 
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hg rollback
  repository tip rolled back to revision 3 (undo pull)
  working directory now based on revision 0

preoutgoing hook can prevent outgoing changes

  $ echo 'preoutgoing.forbid = python "$TESTDIR"/printenv.py preoutgoing.forbid 1' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  preoutgoing hook: HG_SOURCE=pull 
  preoutgoing.forbid hook: HG_SOURCE=pull 
  abort: preoutgoing.forbid hook exited with status 1
  [255]

outgoing hooks work for local clones

  $ cd ..
  $ echo '[hooks]' > a/.hg/hgrc
  $ echo 'preoutgoing = python "$TESTDIR"/printenv.py preoutgoing' >> a/.hg/hgrc
  $ echo 'outgoing = python "$TESTDIR"/printenv.py outgoing' >> a/.hg/hgrc
  $ hg clone a c
  preoutgoing hook: HG_SOURCE=clone 
  outgoing hook: HG_NODE=0000000000000000000000000000000000000000 HG_SOURCE=clone 
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm -rf c

preoutgoing hook can prevent outgoing changes for local clones

  $ echo 'preoutgoing.forbid = python "$TESTDIR"/printenv.py preoutgoing.forbid 1' >> a/.hg/hgrc
  $ hg clone a zzz
  preoutgoing hook: HG_SOURCE=clone 
  preoutgoing.forbid hook: HG_SOURCE=clone 
  abort: preoutgoing.forbid hook exited with status 1
  [255]
  $ 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

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'
  error: preoutgoing.broken hook raised an exception: unsupported operand type(s) for +: 'int' and 'dict'

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

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.abort = python:hooktests.aborthook' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  error: preoutgoing.abort hook failed: raise abort from hook
  abort: raise abort from hook
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.fail = python:hooktests.failhook' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  hook args:
    hooktype preoutgoing
    source pull
  abort: preoutgoing.fail hook failed
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.uncallable = python:hooktests.uncallable' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  abort: preoutgoing.uncallable hook is invalid ("hooktests.uncallable" is not callable)
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.nohook = python:hooktests.nohook' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  abort: preoutgoing.nohook hook is invalid ("hooktests.nohook" is not defined)
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.nomodule = python:nomodule' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  abort: preoutgoing.nomodule hook is invalid ("nomodule" not in a module)
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.badmodule = python:nomodule.nowhere' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  abort: preoutgoing.badmodule hook is invalid (import of "nomodule" failed)
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.unreachable = python:hooktests.container.unreachable' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  abort: preoutgoing.unreachable hook is invalid (import of "hooktests.container" failed)
  [255]

  $ echo '[hooks]' > ../a/.hg/hgrc
  $ echo 'preoutgoing.pass = python:hooktests.passhook' >> ../a/.hg/hgrc
  $ hg pull ../a
  pulling from ../a
  searching for changes
  hook args:
    hooktype preoutgoing
    source pull
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)

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'
  Traceback (most recent call last):

  $ 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'
  Automatically installed hook
  $ echo >> foo
  $ hg ci --debug -d '0 0' -m 'change foo'
  foo
  calling hook commit.auto: <function autohook at *> (glob)
  Automatically installed hook
  committed changeset 1:52998019f6252a2b893452765fcb0a47351a5708

  $ hg showconfig hooks
  hooks.commit.auto=<function autohook at *> (glob)

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'
  hook works
  nothing changed
  [1]

  $ cd ../../b

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 -ma 2>&1 | egrep '^(exception|Traceback|ImportError)'
  exception from first failed import attempt:
  Traceback (most recent call last):
  ImportError: No module named somebogusmodule
  exception from second failed import attempt:
  Traceback (most recent call last):
  ImportError: No module named hgext_importfail
  Traceback (most recent call last):

Issue1827: Hooks Update & Commit not completely post operation

commit and update hooks should run after command completion

  $ echo '[hooks]' > .hg/hgrc
  $ echo 'commit = hg id' >> .hg/hgrc
  $ echo 'update = hg id' >> .hg/hgrc
  $ echo bb > a
  $ hg ci -ma
  223eafe2750c tip
  $ hg up 0
  cb9a9f314b8b
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved