hg: add test for setting treemanifest.sendtrees=True

Summary:
I will be enabling this config on its own more broadly soon. Let's add
a test just to verify it works without treeonly=True being set (which is what
most other tests already test).

Reviewed By: quark-zju

Differential Revision: D7004366

fbshipit-source-id: 5743fbfd23da7327d1779f8555c42a8845d60271

tests/library.sh

@@ -66,7 +66,7 @@ hginit() {
   local name
   name=$1
   shift
-  hg init $name $@
+  hg init $name $@ --config remotefilelog.reponame=master
 }
 
 clearcache() {

tests/test-fb-hgext-treemanifest-sendtrees.t

@@ -0,0 +1,100 @@
+  $ . "$TESTDIR/library.sh"
+
+  $ cat >> $HGRCPATH <<EOF
+  > [extensions]
+  > pushrebase=
+  > remotenames=
+  > [treemanifest]
+  > sendtrees=True
+  > EOF
+
+Setup the server
+
+  $ hginit master
+  $ cd master
+  $ cat >> .hg/hgrc <<EOF
+  > [extensions]
+  > bundle2hooks=
+  > treemanifest=
+  > [treemanifest]
+  > server=True
+  > [remotefilelog]
+  > server=True
+  > shallowtrees=True
+  > EOF
+
+Make local commits on the server
+  $ mkdir subdir
+  $ echo x > subdir/x
+  $ hg commit -qAm 'add subdir/x'
+  $ hg book master
+
+The following will turn on sendtrees mode for a hybrid client and verify it
+sends them during a push and during bundle operations.
+
+Create flat manifest clients
+  $ cd ..
+  $ hgcloneshallow ssh://user@dummy/master client1 -q
+  1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over * (glob)
+  $ hgcloneshallow ssh://user@dummy/master client2 -q
+
+Transition to hybrid flat+tree client
+  $ cat >> client1/.hg/hgrc <<EOF
+  > [extensions]
+  > fbamend=
+  > fastmanifest=
+  > treemanifest=
+  > [fastmanifest]
+  > usetree=True
+  > usecache=False
+  > [treemanifest]
+  > demanddownload=True
+  > EOF
+  $ cat >> client2/.hg/hgrc <<EOF
+  > [extensions]
+  > fbamend=
+  > fastmanifest=
+  > treemanifest=
+  > [fastmanifest]
+  > usetree=True
+  > usecache=False
+  > [treemanifest]
+  > demanddownload=True
+  > EOF
+
+Make a draft commit
+  $ cd client1
+  $ echo f >> subdir/x
+  $ hg commit -qm "hybrid commit"
+  2 trees fetched over * (glob)
+  $ hg debugdatapack .hg/store/packs/manifests/*datapack
+  .hg/store/packs/manifests/da9af3771b30963e2eb5624a2df366eb989223c1:
+  subdir:
+  Node          Delta Base    Delta Length  Blob Size
+  97c1b2747888  000000000000  43            (missing)
+  
+  (empty name):
+  Node          Delta Base    Delta Length  Blob Size
+  c0196aba344d  000000000000  49            (missing)
+  
+
+Test bundling/unbundling
+  $ hg bundle -r . --base '.^' ../treebundle.hg --debug | grep treegroup
+  bundle2-output-part: "b2x:treegroup2" (params: 3 mandatory) streamed payload
+
+  $ cd ../client2
+  $ hg unbundle ../treebundle.hg --debug | grep treegroup
+  bundle2-input-part: "b2x:treegroup2" (params: 3 mandatory) supported
+  $ hg debugdatapack .hg/store/packs/manifests/*datapack
+  .hg/store/packs/manifests/da9af3771b30963e2eb5624a2df366eb989223c1:
+  subdir:
+  Node          Delta Base    Delta Length  Blob Size
+  97c1b2747888  000000000000  43            (missing)
+  
+  (empty name):
+  Node          Delta Base    Delta Length  Blob Size
+  c0196aba344d  000000000000  49            (missing)
+  
+Test pushing
+  $ hg push -r tip --to master --debug | grep treegroup
+  bundle2-output-part: "b2x:treegroup2" (params: 3 mandatory) streamed payload