From 6de88f7fc7f0bf70a9e8266deaaed2a9433a68b7 Mon Sep 17 00:00:00 2001
From: ernestl <ernest.lotter@canonical.com>
Date: Thu, 21 Nov 2024 11:41:57 +0200
Subject: [PATCH] .github/workflows: add workflow to determine required version
 of go snap for testing

---
 .github/workflows/determine-go-versions.yaml | 58 ++++++++++++++++++++
 .github/workflows/test.yaml                  | 32 +++++++----
 2 files changed, 78 insertions(+), 12 deletions(-)
 create mode 100644 .github/workflows/determine-go-versions.yaml

diff --git a/.github/workflows/determine-go-versions.yaml b/.github/workflows/determine-go-versions.yaml
new file mode 100644
index 00000000000..d9a24b6c2a6
--- /dev/null
+++ b/.github/workflows/determine-go-versions.yaml
@@ -0,0 +1,58 @@
+name: Determine Go snap versions
+
+on:
+  workflow_call:
+    inputs:
+      include-snapd-build-go-version:
+        description: 'Flag instructing to lookup the version of Go snap used to build Snapd'
+        required: false
+        type: boolean
+      include-latest-go-version: 
+        description: 'Flag instructing to lookup the latest version of Go snap'
+        required: false
+        type: boolean
+      specific-go-versions:
+        required: false
+        type: string       
+    outputs:
+      gochannels:
+        description: 'JSON list of Go snap versions to use in gochannel matrix'
+
+jobs:
+  determine:
+    runs-on: ubuntu-latest
+    outputs:
+      go-versions: ${{ steps.determine.outputs.go-versions }}
+    steps:
+      - name: Initialize Go versions list
+        id: determine
+        run: |
+          # Initialize an empty list
+          GO_VERSIONS=()
+
+          # Optionally add specific versions
+          if [ -n "${{ inputs.specific-go-versions }}" ]; then
+            for VERSION in ${{ inputs.specific-go-versions }}; do
+              GO_VERSIONS+=("$VERSION")
+            done
+          fi
+
+          # Optionally add version that snapd is build with
+          if [ "${{ inputs.include-snapd-build-go-version }}" = "true" ]; then
+            # Simulate fetching the Snapd Go build version (replace with actual logic)
+            BUILD_VERSION="1.18"
+            GO_VERSIONS+=("$BUILD_VERSION")
+          fi
+
+          # Optionally add latest version
+          if [ "${{ inputs.include-latest-go-version }}" = "true" ]; then
+            # Simulate fetching the latest Go version (replace with actual logic)
+            LATEST_VERSION="latest/stable"
+            GO_VERSIONS+=("$LATEST_VERSION")
+          fi
+
+          # Remove duplicates and convert to JSON array
+          UNIQUE_VERSIONS=$(printf '%s\n' "${GO_VERSIONS[@]}" | sort -u | jq -R . | jq -s .)
+
+          # Output the list
+          echo "::set-output name=go-versions::$UNIQUE_VERSIONS"
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 298ae4c1be1..3ebda3ce564 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -10,6 +10,14 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  required-go-versions:
+    uses: ./.github/workflows/determine-go-versions.yaml
+    with:
+      # If build-version and latest version is the same,
+      # the duplicate will be removed
+      include-snapd-build-go-version: true
+      include-latest-go-version: true
+
   snap-builds:
     uses: ./.github/workflows/snap-builds.yaml
     with:
@@ -81,7 +89,9 @@ jobs:
 
   static-checks:
     uses: ./.github/workflows/static-checks.yaml
-    needs: [cache-build-deps]
+    needs:
+      - required-go-versions
+      - cache-build-deps
     with:
       runs-on: ubuntu-latest
       gochannel: ${{ matrix.gochannel }}
@@ -90,9 +100,7 @@ jobs:
       # we cache successful runs so it's fine to keep going
       fail-fast: false      
       matrix:
-        gochannel:
-          - 1.18
-          - latest/stable
+        gochannel: ${{ fromJson(needs.determine-go-versions.outputs.go-versions) }}
 
   branch-static-checks:
     runs-on: ubuntu-latest
@@ -117,7 +125,9 @@ jobs:
 
   unit-tests:
     uses: ./.github/workflows/unit-tests.yaml
-    needs: [static-checks]
+    needs:
+      - required-go-versions
+      - static-checks
     with:
       runs-on: ubuntu-22.04
       gochannel: ${{ matrix.gochannel }}
@@ -126,16 +136,16 @@ jobs:
       # we cache successful runs so it's fine to keep going
       fail-fast: false      
       matrix:
-        gochannel:
-          - 1.18
-          - latest/stable
+        gochannel: ${{ fromJson(needs.determine-go-versions.outputs.go-versions) }}
         unit-scenario:
           - normal
 
   # TODO run unit tests of C code
   unit-tests-special:
     uses: ./.github/workflows/unit-tests.yaml
-    needs: [static-checks]
+    needs:
+      - required-go-versions
+      - static-checks
     with:
       runs-on: ubuntu-22.04
       gochannel: ${{ matrix.gochannel }}
@@ -144,9 +154,7 @@ jobs:
       # we cache successful runs so it's fine to keep going
       fail-fast: false
       matrix:
-        gochannel:
-          - 1.18
-          - latest/stable
+        gochannel: ${{ fromJson(needs.determine-go-versions.outputs.go-versions) }}
         unit-scenario:
           - snapd_debug
           - withbootassetstesting