changed internal helper to makepgk

AUR packages can be build via the makepkg script and via AUR helpers.
AUR helpers further automate certain tasks for the AUR. makepkg is no helper.
Therefore, internal helper should be renamed to just makepkg.

README.md

@@ -1,25 +1,29 @@
 # Ansible AUR helper
-Ansible module to use some Arch User Repository (AUR) helpers as well as a simple internal implementation as a fallback. The following helpers are supported and automatically selected in the order they are listed:
+Ansible module to use some Arch User Repository (AUR) helpers as well as makepkg.
+
+The following helpers are supported and automatically selected in the order they are listed:
 - [aurman](https://github.com/polygamma/aurman)
 - [pacaur](https://github.com/rmarquis/pacaur)
 - [trizen](https://github.com/trizen/trizen)
 - [pikaur](https://github.com/actionless/pikaur)
 - [yaourt](https://github.com/archlinuxfr/yaourt)
 - [yay](https://github.com/Jguer/yay)
-- internal helper
+
+makepkg will be used if no helper was found or if it's specified explicitly.
+- [makepkg](https://wiki.archlinux.org/index.php/makepkg)
 
 ## Options
 |parameter      |required |default |choices                                                      |comments|
 |---            |---      |---     |---                                                          |---|
 |name           |no       |        |                                                             |Name or list of names of the package(s) to install or upgrade.|
 |upgrade        |no       |no      |yes, no                                                      |Whether or not to upgrade whole system.|
-|use            |no       |auto    |auto, aurman, pacaur, trizen, pikaur, yaourt, yay, internal  |The helper to use, 'auto' uses the first known helper found, 'internal' uses the internal helper.|
+|use            |no       |auto    |auto, aurman, pacaur, trizen, pikaur, yaourt, yay, makepkg  |The helper to use, 'auto' uses the first known helper found and makepkg as a fallback.|
 |skip_installed |no       |no      |yes, no                                                      |Skip operations if the package is present.|
 
 ### Note
 * Either *name* or *upgrade* is required, both cannot be used together.
 * *skip_installed* cannot be used with *upgrade*.
-* In the *use*=*auto* mode, the internal helper is used as a fallback if no known helper is found.
+* In the *use*=*auto* mode, makepkg is used as a fallback if no known helper is found.
 
 ## Installing
 1. Clone the *ansibe-aur* repository in your playbook custom-module directory:
@@ -42,8 +46,8 @@ ln --symbolic ansible-aur/aur.py aur
 ### Examples
 Use it in a task, as in the following examples:
 ```
-# Install trizen using the internal helper, skip if trizen is already installed
+# Install trizen using makepkg, skip if trizen is already installed
-- aur: name=trizen use=internal skip_installed=true
+- aur: name=trizen use=makepkg skip_installed=true
   become: yes
   become_user: aur_builder
 

aur.py

@@ -19,7 +19,7 @@ use_cmd = {
     'pikaur': ['pikaur', '-S', '--noconfirm', '--noedit', '--needed'],
     'yaourt': ['yaourt', '-S', '--noconfirm', '--needed'],
     'yay': ['yay', '-S', '--noconfirm'],
-    'internal': ['makepkg', '--syncdeps', '--install', '--noconfirm', '--needed']
+    'makepkg': ['makepkg', '--syncdeps', '--install', '--noconfirm', '--needed']
 }
 # optional: aurman, pacaur, trizen have a --aur option, do things only for aur
 
@@ -29,7 +29,6 @@ def package_installed(module, package):
     return rc == 0
 
 
-def install_internal(module, package):
 def check_packages(module, packages):
     """
     Inform the user what would change if the module were run
@@ -55,6 +54,8 @@ def check_packages(module, packages):
             message = 'package is already installed'
     module.exit_json(changed=status, msg=message)
 
+
+def install_with_makepkg(module, package):
     f = urllib.request.urlopen('https://aur.archlinux.org/rpc/?v=5&type=info&arg={}'.format(package))
     result = json.loads(f.read().decode('utf8'))
     if result['resultcount'] != 1:
@@ -71,7 +72,7 @@ def check_packages(module, packages):
         tar.extractall()
         tar.close()
         os.chdir(format(result['Name']))
-        rc, out, err = module.run_command(use_cmd['internal'], check_rc=True)
+        rc, out, err = module.run_command(use_cmd['makepkg'], check_rc=True)
         os.chdir(current_path)
     return (rc, out, err)
 
@@ -98,8 +99,8 @@ def install_packages(module, packages, use, skip_installed):
             if package_installed(module, package):
                 rc = 0
                 continue
-        if use == 'internal':
+        if use == 'makepkg':
-            rc, out, err = install_internal(module, package)
+            rc, out, err = install_with_makepkg(module, package)
         else:
             rc, out, err = module.run_command(def_lang + use_cmd[use] + [package], check_rc=True)
         changed_iter = changed_iter or not (out == '' or '-- skipping' in out or 'nothing to do' in out)
@@ -124,7 +125,7 @@ def main():
             },
             'use': {
                 'default': 'auto',
-                'choices': ['auto', 'aurman', 'pacaur', 'trizen', 'pikaur', 'yaourt', 'yay', 'internal'],
+                'choices': ['auto', 'aurman', 'pacaur', 'trizen', 'pikaur', 'yaourt', 'yay', 'makepkg'],
             },
             'skip_installed': {
                 'default': False,
@@ -141,7 +142,7 @@ def main():
         check_packages(module, params['name'])
 
     if params['use'] == 'auto':
-        use = 'internal'
+        use = 'makepkg'
         # auto: select the first helper for which the bin is found
         for k in use_cmd:
             if module.get_bin_path(k, False):
@@ -150,7 +151,7 @@ def main():
     else:
         use = params['use']
 
-    if params['upgrade'] and (params['name'] or params['skip_installed'] or use == 'internal'):
+    if params['upgrade'] and (params['name'] or params['skip_installed'] or use == 'makepkg'):
         module.fail_json(msg="Upgrade cannot be used with this option.")
     else:
         if params['upgrade']: