some more groundwork

aif.xsd

@@ -810,7 +810,7 @@
                 </xs:element>
                 <!-- END SCRIPTS -->
             </xs:all>
-            <xs:attribute name="version" type="aif:t_nonempty" use="required"/>
+            <xs:attribute name="version" type="aif:t_nonempty" use="optional" default="master"/>
         </xs:complexType>
     </xs:element>
 </xs:schema>

aif/config/__init__.py

@@ -0,0 +1,2 @@
+from . import parser
+# from . import generator  # pending API

aif/constants.py

@@ -1,3 +1,4 @@
+arch_releng_key = '4AA4767BBC9C4B1D18AE28B77F2D434B9741E8AC'
 version = '0.2.0'
 external_deps = ['blkinfo',
                  'gpg',

aif/disk/block_fallback.py

@@ -3,9 +3,7 @@
 # https://github.com/dcantrell/pyparted/blob/master/examples/query_device_capacity.py
 # TODO: Remember to replicate genfstab behaviour.
 
-import os
 import re
-import subprocess
 try:
     # https://stackoverflow.com/a/34812552/733214
     # https://github.com/karelzak/util-linux/blob/master/libmount/python/test_mount_context.py#L6
@@ -14,7 +12,6 @@ except ImportError:
     # We should never get here. util-linux is part of core (base) in Arch and uses "libmount".
     import pylibmount as mount
 ##
-# import blkinfo
 import parted  # https://www.gnu.org/software/parted/api/index.html
 import psutil
 ##

aif/disk/filesystem_fallback.py

@@ -25,7 +25,8 @@ _mod_dir = os.path.join('/lib/modules',
                         os.uname().release,
                         'kernel/fs')
 _strip_mod_suffix = re.compile(r'(?P<fsname>)\.ko(\.(x|g)?z)?$', re.IGNORECASE)
-for i in os.listdir(_mod_dir):
+try:
+    for i in os.listdir(_mod_dir):
         path = os.path.join(_mod_dir, i)
         fs_name = None
         if os.path.isdir(path):
@@ -39,6 +40,9 @@ for i in os.listdir(_mod_dir):
             if os.getuid() == 0:
                 subprocess.run(['modprobe', fs_name])
                 FS_FSTYPES.append(fs_name)
+except FileNotFoundError:
+    # We're running on a kernel that doesn't have modules
+    pass
 
 
 class FS(object):