Allow the written salt version to be passed to other workflows

Signed-off-by: Pedro Algarvio <palgarvio@vmware.com>

.github/actions/setup-salt-version/action.yml

@@ -9,6 +9,10 @@ inputs:
       The Salt version to set prior to running tests or building packages.
       If not set, it is discover at run time, like, for example, capturing
       the output of running `python3 salt/version.py`
+outputs:
+  salt-version:
+    value: ${{ steps.setup-salt-version.outputs.salt-version }}
+    description: The Salt version written to `salt/_version.txt`
 
 runs:
   using: composite
@@ -16,6 +20,7 @@ runs:
   steps:
 
     - name: Setup Salt Version
+      id: setup-salt-version
       shell: bash
       run: |
         tools pkg set-salt-version ${{ inputs.salt-version }}

.github/workflows/ci.yml

@@ -47,6 +47,7 @@ jobs:
       jobs: ${{ steps.process-changed-files.outputs.jobs }}
       changed-files: ${{ steps.process-changed-files.outputs.changed-files }}
       testrun: ${{ steps.define-testrun.outputs.testrun }}
+      salt-version: ${{ steps.setup-salt-version.outputs.salt-version }}
     steps:
       - uses: actions/checkout@v3
       - name: Get Changed Files
@@ -110,6 +111,7 @@ jobs:
         uses: ./.github/actions/setup-python-tools-scripts
 
       - name: Setup Salt Version
+        id: setup-salt-version
         uses: ./.github/actions/setup-salt-version
         with:
           salt-version: "${{ inputs.salt-version }}"

tools/pkg.py

@@ -78,4 +78,11 @@ def set_salt_version(ctx: Context, salt_version: str, overwrite: bool = False):
         with open(gh_env_file, "w", encoding="utf-8") as wfh:
             wfh.write(f"{variable_text}\n")
 
+    gh_output_file = os.environ.get("GITHUB_OUTPUT", None)
+    if gh_output_file is not None:
+        variable_text = f"salt-version={salt_version}"
+        ctx.info(f"Writing '{variable_text}' to '$GITHUB_OUTPUT' file:", gh_output_file)
+        with open(gh_output_file, "w", encoding="utf-8") as wfh:
+            wfh.write(f"{variable_text}\n")
+
     ctx.exit(0)