helm: Accept release candidate versions for compatibility checks (#745) (#753)

This is a backport of PR #745 as merged into main (6a04f42).
SUMMARY

If the helm CLI version includes -rc.1 for example, the version checks fails due to an incomplete regex.
The error can be triggered if you use helm v3.15.0-rc.1 for example, and apply a helm chart with wait: true 
ISSUE TYPE


Bugfix Pull Request

COMPONENT NAME
helm
helm_pull
ADDITIONAL INFORMATION

Reviewed-by: Mike Graves <mgraves@redhat.com>

changelogs/fragments/20240611-helm-rc-version.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+  - helm - Helm version checks did not support RC versions. They now accept any version tags. (https://github.com/ansible-collections/kubernetes.core/pull/745).

plugins/module_utils/helm.py

@@ -184,10 +184,10 @@ class AnsibleHelmModule(object):
     def get_helm_version(self):
         command = self.get_helm_binary() + " version"
         rc, out, err = self.run_command(command)
-        m = re.match(r'version.BuildInfo{Version:"v([0-9\.]*)",', out)
+        m = re.match(r'version.BuildInfo{Version:"v(.*?)",', out)
         if m:
             return m.group(1)
-        m = re.match(r'Client: &version.Version{SemVer:"v([0-9\.]*)", ', out)
+        m = re.match(r'Client: &version.Version{SemVer:"v(.*?)", ', out)
         if m:
             return m.group(1)
         return None

tests/unit/module_utils/test_helm.py

@@ -200,6 +200,10 @@ def test_module_get_values(_ansible_helm_module, no_values, get_all):
             'version.BuildInfo{Version:"v3.10.3", GitCommit:7870ab3ed4135f136eec, GoVersion:"go1.18.9"}',
             "3.10.3",
         ),
+        (
+            'version.BuildInfo{Version:"v3.15.0-rc.1", GitCommit:"d7afa3b6b432c09a02cd07342e908ba5bed34940", GitTreeState:"clean", GoVersion:"go1.22.4"}',
+            "3.15.0-rc.1",
+        ),
         ('Client: &version.Version{SemVer:"v3.12.3", ', "3.12.3"),
         ('Client: &version.Version{SemVer:"v3.12.3"', None),
     ],