build: add subcommands to kexttool

tools/kexttool/scan.py

@@ -0,0 +1,32 @@
+import glob
+import os
+from kexttool import kext
+
+def list_all(pretty=False):
+    cwd = os.getcwd()
+    scan_arg = os.path.join(cwd, 'extensions', '**/extension.yaml')
+
+    nr_extensions = 0
+
+    # root_dir needs a trailing slash (i.e. /root/dir/)
+    for filename in glob.iglob(scan_arg, recursive=True):
+        try:
+            kext_src = kext.KextSource(filename)
+        except Exception as e:
+            print('E: cannot read kernel extension source manifest (reason: {})'.format(e))
+            continue
+
+        if pretty:
+            print('* {}'.format(kext_src.name()))
+            print('   Bundle ID: {}'.format(kext_src.id()))
+            print('   License:   {}'.format(kext_src.license()))
+            print('   Copyright: {}'.format(kext_src.copyright()))
+            print('   Location:  {}'.format(kext_src.src_dirpath()))
+            print('   Sources:')
+
+            for src in kext_src.sources():
+                print('      {}'.format(src))
+        else:
+            print('\033[1;96m* \033[0;1m{}\033[0m ({})'.format(kext_src.id(), kext_src.src_dirpath()))
+
+        nr_extensions = nr_extensions + 1