add -f/--force to pull, incoming, outgoing, to work on unrelated repo.
before this, push would not push from e.g. "hg" repo to "kernel" repo
but other commands worked. this was bad idea, could merge unrelated
projects by accident. i did this tonight.
now, all commands still work with unrelated repo but need
--force/-f. abort is default. this is safer.
#!/bin/sh
# commit hooks can see env vars
hg init a
cd a
echo "[hooks]" > .hg/hgrc
echo 'commit = echo commit hook: n=$HG_NODE p1=$HG_PARENT1 p2=$HG_PARENT2' >> .hg/hgrc
echo 'commit.b = echo commit hook b' >> .hg/hgrc
echo 'precommit = echo precommit hook: p1=$HG_PARENT1 p2=$HG_PARENT2' >> .hg/hgrc
echo 'pretxncommit = echo pretxncommit hook: n=$HG_NODE p1=$HG_PARENT1 p2=$HG_PARENT2; 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 = echo prechangegroup hook' >> .hg/hgrc
echo 'changegroup = echo changegroup hook: n=$HG_NODE' >> .hg/hgrc
echo 'incoming = echo incoming hook: n=$HG_NODE' >> .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 update -m 1
hg commit -m merge -d '2 0'
cd ../b
hg pull ../a
# tag hooks can see env vars
cd ../a
echo 'pretag = echo pretag hook: t=$HG_TAG n=$HG_NODE l=$HG_LOCAL' >> .hg/hgrc
echo 'tag = echo tag hook: t=$HG_TAG n=$HG_NODE l=$HG_LOCAL' >> .hg/hgrc
hg tag -d '3 0' a
hg tag -l la
# pretag hook can forbid tagging
echo 'pretag.forbid = echo pretag.forbid hook; exit 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.forbid = echo pretxncommit.forbid hook: tip=`hg -q tip`; exit 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 = echo precommit.forbid hook; exit 1' >> .hg/hgrc
hg commit -m 'fail' -d '4 0'
hg -q tip
# prechangegroup hook can prevent incoming changes
cd ../b
hg -q tip
echo '[hooks]' > .hg/hgrc
echo 'prechangegroup.forbid = echo prechangegroup.forbid hook; exit 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.forbid = echo pretxnchangegroup.forbid hook: tip=`hg -q tip`; exit 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 = echo preoutgoing hook: s=$HG_SOURCE' >> ../a/.hg/hgrc
echo 'outgoing = echo outgoing hook: n=$HG_NODE s=$HG_SOURCE' >> ../a/.hg/hgrc
hg pull ../a
hg undo
# preoutgoing hook can prevent outgoing changes
echo 'preoutgoing.forbid = echo preoutgoing.forbid hook; exit 1' >> ../a/.hg/hgrc
hg pull ../a
exit 0