Add a base-level get_basedir method for lookup plugins and fix relative lookups

Fixes #11746

lib/ansible/plugins/lookup/__init__.py

@@ -32,6 +32,12 @@ class LookupBase:
         self._loader = loader
         self._display = display
 
+    def get_basedir(self, variables):
+        if 'role_path' in variables:
+            return variables['role_path']
+        else:
+            return self._loader.get_basedir()
+
     def _flatten(self, terms):
         ret = []
         for term in terms:

lib/ansible/plugins/lookup/csvfile.py

@@ -45,12 +45,9 @@ class LookupModule(LookupBase):
         if isinstance(terms, basestring):
             terms = [ terms ]
 
-        ret = []
+        basedir = self.get_basedir(variables)
 
-        if 'role_path' in variables:
-            basedir = variables['role_path']
-        else:
-            basedir = self._loader.get_basedir()
+        ret = []
 
         for term in terms:
             params = term.split()

lib/ansible/plugins/lookup/file.py

@@ -32,10 +32,7 @@ class LookupModule(LookupBase):
 
         ret = []
 
-        if 'role_path' in variables:
-            basedir = variables['role_path']
-        else:
-            basedir = self._loader.get_basedir()
+        basedir = self.get_basedir(variables)
 
         for term in terms:
             self._display.debug("File lookup term: %s" % term)

lib/ansible/plugins/lookup/fileglob.py

@@ -26,9 +26,11 @@ class LookupModule(LookupBase):
 
     def run(self, terms, variables=None, **kwargs):
 
+        basedir = self.get_basedir(variables)
+
         ret = []
         for term in terms:
-            dwimmed = self._loader.path_dwim(term)
+            dwimmed = self._loader.path_dwim_relative(basedir, 'files', term)
             globbed = glob.glob(dwimmed)
             ret.extend(g for g in globbed if os.path.isfile(g))
         return ret

lib/ansible/plugins/lookup/template.py

@@ -30,15 +30,12 @@ class LookupModule(LookupBase):
         if not isinstance(terms, list):
             terms = [ terms ]
 
+        basedir = self.get_basedir(variables)
+
         ret = []
 
         templar = Templar(loader=self._loader, variables=variables)
 
-        if 'role_path' in variables:
-            basedir = variables['role_path']
-        else:
-            basedir = self._loader.get_basedir()
-
         for term in terms:
             self._display.debug("File lookup term: %s" % term)