Fix ptf --version

Use setuptools to write a src/ptf/_version.py file.

Fixes #186

Signed-off-by: Antonin Bas <abas@vmware.com>

Author: antoninbas

.github/workflows/build.yml

@@ -46,6 +46,7 @@ jobs:
     - name: Install
       run: |
         sudo python3 -m pip install .
+        ptf --version
 
     - name: Before_script
       run: |

.gitignore

@@ -7,3 +7,5 @@ dist
 build
 *.egg-info
 .eggs
+
+src/ptf/_version.py

ptf

@@ -31,7 +31,7 @@ if os.path.exists(os.path.join(pydir, "ptf")):
     sys.path.insert(0, pydir)
 
 import ptf
-from ptf import config
+from ptf import config, __version__
 import ptf.ptfutils
 
 ##@var DEBUG_LEVELS
@@ -225,7 +225,7 @@ be subtracted from the result by prefixing them with the '^' character.  """
     # Set up default values
     parser.set_defaults(**config_default)
 
-    parser.add_argument("--version", action="version", version="ptf 0.1")
+    parser.add_argument("--version", action="version", version=__version__)
 
     parser.add_argument("test_specs", nargs="*", help="Tests / Groups to run")
 

pyproject.toml

@@ -11,3 +11,4 @@ build-backend = 'setuptools.build_meta'
 root = "./"
 # use current tag and not next one
 version_scheme = "post-release"
+write_to = "src/ptf/_version.py"

src/ptf/__init__.py

@@ -3,6 +3,8 @@
 import os
 import logging
 
+from ._version import __version__
+
 # Global config dictionary
 # Populated by oft.
 config = {}