rcutil: don't check if defaultrc/ is a directory -- we know it is
`mercurial/defaultrc/` is a directory both in the Mercurial repo and
once installed on a target platform. The directory was created in
c4ce077588d0 (config: introduce "built-in" default configuration
settings in default.d, 2014-09-04). That commit has some more
information, but it still doesn't seem to say that `defaultrc/` (then
called `default.d/`) could be a file. Perhaps the check was there to
allow you to run the same code on an older install/repo?
Differential Revision: https://phab.mercurial-scm.org/D7624
#require no-windows
$ . "$TESTDIR/remotefilelog-library.sh"
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> server=True
> EOF
$ echo x > foo
$ echo y > bar
$ hg commit -qAm one
$ cd ..
# partial shallow clone
$ hg clone --shallow ssh://user@dummy/master shallow --noupdate --config remotefilelog.includepattern=foo
streaming all changes
3 files to transfer, 336 bytes of data
transferred 336 bytes in * seconds (*/sec) (glob)
searching for changes
no changes found
$ cat >> shallow/.hg/hgrc <<EOF
> [remotefilelog]
> cachepath=$PWD/hgcache
> debug=True
> includepattern=foo
> reponame = master
> [extensions]
> remotefilelog=
> EOF
$ ls shallow/.hg/store/data
bar.i
# update partial clone
$ cd shallow
$ hg update
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ cat foo
x
$ cat bar
y
$ cd ..
# pull partial clone
$ cd master
$ echo a >> foo
$ echo b >> bar
$ hg commit -qm two
$ cd ../shallow
$ hg pull
pulling from ssh://user@dummy/master
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
new changesets a9688f18cb91
(run 'hg update' to get a working copy)
$ hg update
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
$ cat foo
x
a
$ cat bar
y
b
$ cd ..