view tests/test-incoming-outgoing @ 11638:79231258503b stable

transplant: crash if repo.commit() finds nothing to commit

(makes issue2135, issue2264 more obvious, but does nothing to fix
either one)

This seems to happen in two distinct cases:
  * patch.patch() claims success but changes nothing (e.g.
    the transplanted changeset adds an empty file that already
    exists)
  * patch.patch() makes changes, but repo.status() fails to report them

Both of these seem like bugs in other parts of Mercurial, so arguably
it's not transplant's job to detect the failure to commit.  However:
  * detecting the problem as soon as possible is desirable
  * it prevents a more obscure crash later, in transplants.write()
  * there might be other lurking (or future) bugs that cause
    repo.commit() to do nothing

Also, in the case of issue2264 (source changesets silently dropped by
transplant), the only way to spot the problem currently is the crash
in transplants.write().  Failure to transplant a patch should abort
immediately, whether it's user error (patch does not apply) or a
Mercurial bug (e.g. repo.status() failing to report changes).

#!/bin/sh

mkdir test
cd test
hg init
for i in 0 1 2 3 4 5 6 7 8; do
	echo $i >> foo
	hg commit -A -m $i -d "1000000 0"
done
hg verify
hg serve -p $HGPORT -d --pid-file=hg.pid
cat hg.pid >> $DAEMON_PIDS
cd ..

hg init new
# http incoming
hg -R new incoming http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"
hg -R new incoming -r 4 http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"
# local incoming
hg -R new incoming test
hg -R new incoming -r 4 test
echo "% limit to 2 changesets"
hg -R new incoming -l 2 test
echo "% limit to 2 changesets, test with -p --git"
hg -R new incoming -l 2 -p --git test

# test with --bundle
hg -R new incoming --bundle test.hg http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"
hg -R new incoming --bundle test2.hg test

# test the resulting bundles
hg init temp
hg init temp2
hg -R temp unbundle test.hg
hg -R temp2 unbundle test2.hg
hg -R temp tip
hg -R temp2 tip

rm -r temp temp2 new

# test outgoing
hg clone test test-dev
cd test-dev
for i in 9 10 11 12 13; do
	echo $i >> foo
	hg commit -A -m $i -d "1000000 0"
done
hg verify
cd ..
hg -R test-dev outgoing test
echo "% limit to 3 changesets"
hg -R test-dev outgoing -l 3 test
hg -R test-dev outgoing http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"
hg -R test-dev outgoing -r 11 http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"