tests/test-profile

prepush: add more precise error messages

Part of the patch is from [e-mail]

- indicate the branch name where there are multiple heads
- give better advice when hitting a possible race, where new heads are added
  between discovery and the call to branchmap(). In that case, asking the user
  to merge isn't helpful, since only remote has the changes.

#!/bin/sh

echo % test --time
hg --time help -q help 2>&1 | grep Time > /dev/null || echo --time failed

hg init a
cd a

echo % test --profile
if "$TESTDIR/hghave" -q lsprof; then
    hg --profile st 2>../out || echo --profile failed
    grep CallCount < ../out > /dev/null || echo wrong --profile

    hg --profile --config profiling.output=../out st 2>&1 \
        || echo --profile + output to file failed
    grep CallCount < ../out > /dev/null \
        || echo wrong --profile output when saving to a file

    hg --profile --config profiling.format=text st 2>&1 \
        | grep CallCount > /dev/null || echo --profile format=text failed

    echo "[profiling]" >> $HGRCPATH
    echo "format=kcachegrind" >> $HGRCPATH

    hg --profile st 2>../out || echo --profile format=kcachegrind failed
    grep 'events: Ticks' < ../out > /dev/null || echo --profile output is wrong

    hg --profile --config profiling.output=../out st 2>&1 \
        || echo --profile format=kcachegrind + output to file failed
    grep 'events: Ticks' < ../out > /dev/null \
        || echo --profile output is wrong
fi