[PATCH 02 of 14] hg: add shallowroot parameters for clone

[Vishakh H]

# HG changeset patch
# User Vishakh H <vsh426 at gmail.com>
# Date 1279263210 -19800
# Node ID cc705977c22d5f656883c2fc3d8fb5a25e09f56b
# Parent  ac0aaabc91abd7c2ecde7c1e35fe2ac6f6a46e93
hg: add shallowroot parameters for clone

diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -179,7 +179,7 @@
         _update(r, uprev)
 
 def clone(ui, source, dest=None, pull=False, rev=None, update=True,
-          stream=False, branch=None):
+          stream=False, branch=None, shallowroot=None):
     """Make a copy of an existing repository.
 
     Create a copy of an existing repository in a new directory.  The
@@ -259,7 +259,7 @@
         copy = False
         if src_repo.cancopy() and islocal(dest):
             abspath = os.path.abspath(util.drop_scheme('file', origsource))
-            copy = not pull and not rev
+            copy = not pull and not rev and not shallowroot
 
         if copy:
             try:
@@ -313,6 +313,8 @@
             dest_repo = repository(ui, dest)
             src_repo.hook('outgoing', source='clone', node='0'*40)
         else:
+            if shallowroot:
+                shallowroot = src_repo.lookup(shallowroot)
             try:
                 dest_repo = repository(ui, dest, create=True)
             except OSError, inst:
@@ -331,7 +333,7 @@
                 revs = [src_repo.lookup(r) for r in rev]
                 checkout = revs[0]
             if dest_repo.local():
-                dest_repo.clone(src_repo, heads=revs, stream=stream)
+                dest_repo.clone(src_repo, heads=revs, shallowroot=shallowroot, stream=stream)
             elif src_repo.local():
                 src_repo.push(dest_repo, revs=revs)
             else: