init: create target directory recursively

Subrepos with relative paths must often be cloned to locations deep in the
directory structure. This allows clone over ssh (init+push) work.

mercurial/localrepo.py

@@ -42,7 +42,7 b' class localrepository(repo.repository):'
         if not os.path.isdir(self.path):
             if create:
                 if not os.path.exists(path):
-                    os.mkdir(path)
+                    util.makedirs(path)
                 os.mkdir(self.path)
                 requirements = ["revlogv1"]
                 if self.ui.configbool('format', 'usestore', True):

tests/test-init

@@ -84,3 +84,6 b' for i in bundle file hg http https old-h'
   test -d "$i" -a -d "$i/.hg" && echo "ok" || echo "failed"
 done
 
+echo "# creating 'local/sub/repo'"
+hg init local/sub/repo
+checknewrepo local/sub/repo

tests/test-init.out

@@ -73,3 +73,9 b' ok'
 ok
 # hg init "with space"
 ok
+# creating 'local/sub/repo'
+store created
+00changelog.i created
+revlogv1
+store
+fncache