From 5cdae1d394c14d39a88aa43fedc47c3628236c43 Mon Sep 17 00:00:00 2001
From: Luiz Irber <luizirber@users.noreply.github.com>
Date: Tue, 26 Nov 2019 14:56:51 +0000
Subject: [PATCH] use setuptools_scm for python version management (#627)

* use setuptools_scm for python version management

* add git dep for python wheel building

* if no tag is defined, default to dev

* any untagged version default to 0.0.1
---
 .github/actions/binary-compatible-builds/main.js |  1 +
 crates/misc/py/setup.py                          | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/.github/actions/binary-compatible-builds/main.js b/.github/actions/binary-compatible-builds/main.js
index 7b53e1733b..05fc93f8ab 100755
--- a/.github/actions/binary-compatible-builds/main.js
+++ b/.github/actions/binary-compatible-builds/main.js
@@ -60,6 +60,7 @@ const exec = s => {
 exec('yum install -y centos-release-scl cmake xz epel-release');
 exec('yum install -y rh-python36 patchelf unzip');
 exec('yum install -y devtoolset-8-gcc devtoolset-8-binutils devtoolset-8-gcc-c++');
+exec('yum install -y git');
 
 // Delete `libstdc++.so` to force gcc to link against `libstdc++.a` instead.
 // This is a hack and not the right way to do this, but it ends up doing the
diff --git a/crates/misc/py/setup.py b/crates/misc/py/setup.py
index 3737e89d11..9ad1e3f075 100644
--- a/crates/misc/py/setup.py
+++ b/crates/misc/py/setup.py
@@ -1,8 +1,14 @@
 from setuptools import setup
 from setuptools_rust import Binding, RustExtension
 
+
+def no_tag_default_to_dev(version):
+    if version.exact:
+        return version.format_with("{tag}")
+    return "0.0.1"
+
+
 setup(name='wasmtime',
-      version="0.0.1",
       classifiers=[
             "Development Status :: 1 - Planning",
             "Intended Audience :: Developers",
@@ -14,5 +20,12 @@ setup(name='wasmtime',
       ],
       packages=['wasmtime'],
       package_dir={'wasmtime': 'python/wasmtime'},
+      use_scm_version = {
+          "root": "../../..",
+          "relative_to": __file__,
+          "version_scheme": no_tag_default_to_dev,
+          "local_scheme": lambda _: "",
+      },
+      setup_requires=['setuptools_scm'],
       rust_extensions=[RustExtension('wasmtime.lib_wasmtime', 'Cargo.toml',  binding=Binding.PyO3)],
       zip_safe=False)