Migrate apt_repository, group, and supervisorctl to use module.get_bin_path

apt_repository

@@ -26,17 +26,7 @@
 import platform
 
 APT = "/usr/bin/apt-get"
-
-
-def _find_binary(module):
-    binaries = ['/usr/bin/add-apt-repository']
-
-    for e in binaries:
-        if os.path.exists(e):
-            return e
-
-    module.fail_json(msg='Unabled to find any of the following executables '
-                         '%s' % binaries)
+ADD_APT_REPO = 'add-apt-repository'
 
 def _run(cmd):
     # returns (rc, stdout, stderr) from shell command
@@ -56,7 +46,10 @@ def main():
 
     module = AnsibleModule(argument_spec=arg_spec)
 
-    add_apt_repository = _find_binary(module)
+    add_apt_repository = module.get_bin_path(ADD_APT_REPO)
+    if add_apt_repository is None:
+        module.fail_json(msg='Unabled to find any of the following executables '
+                             '%s' % binaries)
 
     repo = module.params['repo']
     state = module.params['state']

group

@@ -21,12 +21,11 @@
 import grp
 
 def get_bin_path(module, arg):
-    if os.path.exists('/usr/sbin/%s' % arg):
-        return '/usr/sbin/%s' % arg
-    elif os.path.exists('/sbin/%s' % arg):
-        return '/sbin/%s' % arg
-    else:
+    bin = module.get_bin_path(arg)
+    if bin is None:
         module.fail_json(msg="Cannot find %s" % arg)
+    else:
+        return bin
 
 def group_del(module, group):
     cmd = [get_bin_path(module, 'groupdel'), group]

supervisorctl

@@ -52,7 +52,9 @@ def main():
     name = module.params['name']
     state = module.params['state']
 
-    SUPERVISORCTL = _find_supervisorctl()
+    SUPERVISORCTL = module.get_bin_path('supervisorctl')
+    if SUPERVISORCTL is None:
+        module.fail_json(msg='supervisorctl is not installed')
 
     if SUPERVISORCTL is None:
         module.fail_json(msg='supervisorctl is not installed')