Create basic command execution driver

vultron/cmd.py

@@ -0,0 +1,52 @@
+class CmdNotFound(Exception):
+  pass
+
+class NoApiKey(Exception):
+  pass
+
+class FeatureMissing(Exception):
+  pass
+
+class Command:
+  FTR_PRFX = "vultron_"
+
+  def __init__(self, cmd, api_key):
+    self.cmd = cmd
+    self.uses_api = True
+    self.default = "help"
+
+    self.init()
+
+    if self.uses_api and api_key is None:
+      raise NoApiKey()
+
+  def init(self):
+    pass
+
+  def find(self, name):
+    needle = "{prfx}{name}".format(prfx=self.FTR_PRFX, name=name.lower())
+    haystack = dir(self)
+
+    for legume in haystack:
+      if legume.lower().startswith(needle):
+        fn = getattr(self, legume)
+
+        if callable(fn):
+          return fn
+        else:
+          raise FeatureMissing(legume)
+
+    raise CmdNotFound(name)
+
+  def vultron_help(self, *args):
+    pass
+
+def find_cmd(needle):
+  needle = needle.lower()
+  haystack = Command.__subclasses__()
+
+  for legume in haystack:
+    if legume.__name__.lower().startswith(needle):
+      return legume
+
+  raise CmdNotFound(needle)

vultron/vultron.py

@@ -1,4 +1,49 @@
-import vultron.api
+import click
+import os
+import sys
+import vultron.cmd
 
-def main():
-  api = vultron.api.Client()
+class Help(vultron.cmd.Command):
+  def init(self):
+    self.uses_api = False
+
+  def vultron_help(self, *args):
+    pass
+
+class Account(vultron.cmd.Command):
+  def init(self):
+    self.default = "info"
+
+  def vultron_info(self, *args):
+    pass
+
+@click.command()
+@click.option("--help", is_flag=True)
+@click.option("--api-key", type=str)
+@click.argument("args", nargs=-1)
+def app(help, api_key, args):
+  env_key = os.getenv("VULTR_API_KEY")
+
+  if api_key is None and env_key:
+    api_key = env_key
+
+  shortcut = "help"
+
+  if len(args):
+    shortcut = args[0]
+    args = args[1:]
+
+  try:
+    vultron_cmd = vultron.cmd.find_cmd(shortcut)
+    vultron_api = vultron_cmd(sys.argv[0], api_key=api_key)
+
+    if len(args):
+      shortcut = args[0]
+      args = args[1:]
+    else:
+      shortcut = vultron_api.default
+
+    vultron_fn = vultron_api.find(shortcut)
+    vultron_fn(*args)
+  except vultron.cmd.CmdNotFound as err:
+    print(err)