treemanifest: auto create manifest pack directory

The pack/manifests directory wasn't being automatically created, so let's make
it so.

remotefilelog/basepack.py

@@ -2,6 +2,7 @@ import errno, hashlib, mmap, os, struct, time
 from mercurial import osutil
 
 import constants
+import shallowutil
 
 # The pack version supported by this implementation. This will need to be
 # rev'd whenever the byte format changes. Ex: changing the fanout prefix,
@@ -200,9 +201,11 @@ class basepack(object):
         raise NotImplemented()
 
 class mutablebasepack(object):
-    def __init__(self, opener):
+    def __init__(self, ui, opener):
         self.opener = opener
         self.entries = {}
+
+        shallowutil.mkstickygroupdir(ui, opener.base)
         self.packfp, self.packpath = opener.mkstemp(
             suffix=self.PACKSUFFIX + '-tmp')
         self.idxfp, self.idxpath = opener.mkstemp(

remotefilelog/fileserverclient.py

@@ -437,8 +437,8 @@ class fileserverclient(object):
         opener = scmutil.vfs(packpath)
         # Packs should be write-once files, so set them to read-only.
         opener.createmode = 0o444
-        with datapack.mutabledatapack(opener) as dpack:
-            with historypack.mutablehistorypack(opener) as hpack:
+        with datapack.mutabledatapack(self.ui, opener) as dpack:
+            with historypack.mutablehistorypack(self.ui, opener) as hpack:
                 for filename in self.readfiles(remote):
                     i += 1
                     self.ui.progress(_downloading, i, total=len(groupedfiles))

remotefilelog/historypack.py

@@ -312,8 +312,8 @@ class mutablehistorypack(basepack.mutablebasepack):
     PACKSUFFIX = PACKSUFFIX
     INDEXENTRYLENGTH = INDEXENTRYLENGTH
 
-    def __init__(self, opener):
-        super(mutablehistorypack, self).__init__(opener)
+    def __init__(self, ui, opener):
+        super(mutablehistorypack, self).__init__(ui, opener)
         self.pastfiles = {}
         self.currentfile = None
         self.currententries = []

remotefilelog/repack.py

@@ -156,8 +156,8 @@ def _runrepack(repo, data, history):
     opener = scmutil.vfs(packpath)
     # Packs should be write-once files, so set them to read-only.
     opener.createmode = 0o444
-    with datapack.mutabledatapack(opener) as dpack:
-        with historypack.mutablehistorypack(opener) as hpack:
+    with datapack.mutabledatapack(repo.ui, opener) as dpack:
+        with historypack.mutablehistorypack(repo.ui, opener) as hpack:
             try:
                 packer.run(dpack, hpack)
             except error.LockHeld:

treemanifest/__init__.py

@@ -55,7 +55,7 @@ def _unpackmanifests(orig, self, repo, *args, **kwargs):
         repo.ui.configbool('treemanifest', 'autocreatetrees')):
         packpath = shallowutil.getpackpath(repo, PACK_CATEGORY)
         opener = scmutil.vfs(packpath)
-        with mutabledatapack(opener) as dpack:
+        with mutabledatapack(repo.ui, opener) as dpack:
             recordmanifest(dpack, repo, oldtip, len(mf))
             dpack.close()