Avoid extra filelogs entries.
Right now, there are some situations in which localrepo.filecommit can
create filelog entries even though they're not needed. For example:
- permissions for a file have changed;
- qrefresh can create a filelog entry identical to its parent (see the
added test);
- convert-repo creates extra filelog entries in every merge where the
first parent has added files (for example, changeset ebebe9577a1a of
the kernel repo added extra filelog entries to files in the
arch/blackfin directory, even though the merge should only touch the
drivers/ata directory). This makes "hg log file" in a converted repo
less useful than it could be, since it may mention many merges that
don't actually touch that specific file.
They all come from the same basic problem: localrepo.commit (through
filecommit) creates new filelog entries for all files passed to it
(except for some cases during a merge).
Patch and test case provided by Benoit.
This should fix issue351.
#!/bin/sh
# This test makes sure that we don't mark a file as merged with its ancestor
# when we do a merge.
cat <<EOF > merge
import sys, os
print "merging for", os.path.basename(sys.argv[1])
EOF
HGMERGE="python ../merge"; export HGMERGE
echo creating base
hg init a
cd a
echo 1 > foo
echo 1 > bar
echo 1 > baz
echo 1 > quux
hg add foo bar baz quux
hg commit -m "base" -d "1000000 0"
cd ..
hg clone a b
echo creating branch a
cd a
echo 2a > foo
echo 2a > bar
hg commit -m "branch a" -d "1000000 0"
echo creating branch b
cd ..
cd b
echo 2b > foo
echo 2b > baz
hg commit -m "branch b" -d "1000000 0"
echo "we shouldn't have anything but n state here"
hg debugstate | cut -b 1-16,35-
echo merging
hg pull ../a
hg merge -v
echo 2m > foo
echo 2b > baz
echo new > quux
echo "we shouldn't have anything but foo in merge state here"
hg debugstate | cut -b 1-16,35- | grep "^m"
hg ci -m "merge" -d "1000000 0"
echo "main: we should have a merge here"
hg debugindex .hg/store/00changelog.i
echo "log should show foo and quux changed"
hg log -v -r tip
echo "foo: we should have a merge here"
hg debugindex .hg/store/data/foo.i
echo "bar: we shouldn't have a merge here"
hg debugindex .hg/store/data/bar.i
echo "baz: we shouldn't have a merge here"
hg debugindex .hg/store/data/baz.i
echo "quux: we shouldn't have a merge here"
hg debugindex .hg/store/data/quux.i
echo "manifest entries should match tips of all files"
hg manifest --debug
echo "everything should be clean now"
hg status
hg verify