annotate tests/test-profile @ 5378:8a2915f57dfc

convert: add a mode where mercurial_sink skips empty revisions.

The getchanges function of some converter_source classes can return
some false positives.  I.e. they sometimes claim that a file "foo"
was changed in some revision, even though its contents are still the
same.

convert_svn is particularly bad, but I think this can also happen with
convert_cvs and, at least in theory, with mercurial_source.

For regular conversions this is not really a problem - as long as
getfile returns the right contents, we'll get a converted revision
with the right contents.  But when we use --filemap, this could lead
to superfluous revisions being converted.

Instead of fixing every converter_source, I decided to change
mercurial_sink to work around this problem.

When --filemap is used, we're interested only in revisions that touch
some specific files.  If a revision doesn't change any of these files,
then we're not interested in it (at least for revisions with a single
parent; merges are special).

For mercurial_sink, we abuse this property and rollback a commit if
the manifest text hasn't changed.  This avoids duplicating the logic
from localrepo.filecommit to detect unchanged files.

#!/bin/sh

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

echo % test --profile
if "$TESTDIR/hghave" -q hotshot; then
    # hotshot might be missing for licensing issues
    hg --profile help -q help 2>&1 | grep ncalls > /dev/null || echo --profile failed
fi

echo % test --lsprof
if "$TESTDIR/hghave" -q lsprof; then
    hg --lsprof help -q help 2>&1 | grep CallCount > /dev/null || echo --lsprof failed
fi