tests/test-hgweb-filelog

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

hg init test
cd test

echo b > b
hg ci -Am "b"

echo a > a
hg ci -Am "first a"

hg rm a
hg ci -m "del a"

echo b > a
hg ci -Am "second a"

hg rm a
hg ci -m "del2 a"

hg mv b c
hg ci -m "mv b"

echo c >> c
hg ci -m "change c"

hg log -p

hg serve -n test -p $HGPORT -d --pid-file=hg.pid -E errors.log
cat hg.pid >> $DAEMON_PIDS

echo % tip - two revisions
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/tip/a')

echo % second version - two revisions
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/3/a')

echo % first deleted - one revision
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/2/a')

echo % first version - one revision
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/1/a')

echo % before addition - error
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/0/a')

echo % should show base link, use spartan because it shows it
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/log/tip/c?style=spartan')

echo % errors
cat errors.log