cm: support lineage device trees

Change-Id: Id7d7c5747639903d1289557dab38341d5c7cc287

build/envsetup.sh

@@ -59,13 +59,18 @@ function breakfast()
             # A buildtype was specified, assume a full device name
             lunch $target
         else
-            # This is probably just the CM model name
+            # This is probably just the Lineage model name
             if [ -z "$variant" ]; then
                 variant="userdebug"
             fi
+            lunch lineage_$target-$variant
+            if [ $? -ne 0 ]; then
+                # try CM
+                echo "** Warning: '$target' is using CM-based makefiles. This will be deprecated in the next major release."
                 lunch cm_$target-$variant
             fi
         fi
+    fi
     return $?
 }
 

build/tools/roomservice.py

@@ -203,10 +203,12 @@ def add_to_manifest(repositories, fallback_branch = None):
 
 def fetch_dependencies(repo_path, fallback_branch = None):
     print('Looking for dependencies in %s' % repo_path)
-    dependencies_path = repo_path + '/cm.dependencies'
+    dependencies_paths = [repo_path + '/lineage.dependencies', repo_path + '/cm.dependencies']
+    found_dependencies = False
     syncable_repos = []
     verify_repos = []
 
+    for dependencies_path in dependencies_paths:
         if os.path.exists(dependencies_path):
             dependencies_file = open(dependencies_path, 'r')
             dependencies = json.loads(dependencies_file.read())
@@ -221,11 +223,14 @@ def fetch_dependencies(repo_path, fallback_branch = None):
                     verify_repos.append(dependency['target_path'])
 
             dependencies_file.close()
+            found_dependencies = True
 
             if len(fetch_list) > 0:
                 print('Adding dependencies to manifest')
                 add_to_manifest(fetch_list, fallback_branch)
-    else:
+            break
+
+    if not found_dependencies:
         print('Dependencies file not found, bailing out.')
 
     if len(syncable_repos) > 0: