ref: Drop version script; consolidate version logic in setup.py (#594)

Author: lgarber-akamai

setup.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+import os
 import pathlib
 import subprocess
 import sys
@@ -10,6 +11,8 @@
 here = pathlib.Path().absolute()
 
 
+ENV_LINODE_CLI_VERSION = "LINODE_CLI_VERSION"
+
 # get the long description from the README.md
 with open(here / "README.md", encoding="utf-8") as f:
     long_description = f.read()
@@ -31,16 +34,6 @@ def get_baked_files():
     return data_files
 
 
-def get_version():
-    """
-    Uses the version file to calculate this package's version
-    """
-    return (
-        subprocess.check_output([sys.executable, "./version"])
-        .decode("utf-8")
-        .rstrip()
-    )
-
 
 def get_baked_version():
     """
@@ -71,7 +64,7 @@ def bake_version(v):
     version = get_baked_version()
 else:
     # Otherwise, retrieve and bake the version as normal
-    version = get_version()
+    version = os.getenv(ENV_LINODE_CLI_VERSION) or "0.0.0"
     bake_version(version)
 
 with open("requirements.txt") as f: