From baa5eac3c5735dd2770a341c3d3a9d75e8b37f86 Mon Sep 17 00:00:00 2001
From: Vibe Myass <vibemyass@onlyspam.org>
Date: Mon, 16 Mar 2026 04:39:20 +0000
Subject: [PATCH] Reuse preinstalled .NET 10 SDK in CI

---
 .gitea/workflows/smoke.yml | 21 +++++++++++++++------
 README.md                  |  3 ++-
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/.gitea/workflows/smoke.yml b/.gitea/workflows/smoke.yml
index be277a9..ac6976b 100644
--- a/.gitea/workflows/smoke.yml
+++ b/.gitea/workflows/smoke.yml
@@ -74,34 +74,43 @@ jobs:
             echo "Non-root runner detected; smoke-only test lane enabled."
           fi
 
-      - name: Install .NET SDK
+      - name: Resolve .NET SDK
         run: |
           set -euo pipefail
+
+          if command -v dotnet >/dev/null 2>&1 && dotnet --list-sdks | grep -Eq '^10\.'; then
+            echo "Using preinstalled .NET 10 SDK from PATH."
+            echo "DOTNET_CMD=dotnet" >> "$GITHUB_ENV"
+            exit 0
+          fi
+
+          echo "Preinstalled .NET 10 SDK not found. Installing local SDK copy."
           curl -fsSL https://dot.net/v1/dotnet-install.sh -o dotnet-install.sh
           bash dotnet-install.sh --channel 10.0 --quality ga --install-dir "$HOME/.dotnet"
+          echo "DOTNET_CMD=$HOME/.dotnet/dotnet" >> "$GITHUB_ENV"
 
       - name: Show .NET info
         run: |
           set -euo pipefail
-          "$HOME/.dotnet/dotnet" --info
+          "${DOTNET_CMD}" --info
 
       - name: Restore
         run: |
           set -euo pipefail
-          "$HOME/.dotnet/dotnet" restore
+          "${DOTNET_CMD}" restore
 
       - name: Build
         run: |
           set -euo pipefail
-          "$HOME/.dotnet/dotnet" build --no-restore
+          "${DOTNET_CMD}" build --no-restore
 
       - name: Smoke tests
         run: |
           set -euo pipefail
-          LIBNFTABLES_RUN_PRIVILEGED_TESTS=0 "$HOME/.dotnet/dotnet" test LibNftables.slnx --no-build --filter "Category!=Privileged"
+          LIBNFTABLES_RUN_PRIVILEGED_TESTS=0 "${DOTNET_CMD}" test LibNftables.slnx --no-build --filter "Category!=Privileged"
 
       - name: Privileged tests
         if: env.RUN_PRIVILEGED_TESTS == '1'
         run: |
           set -euo pipefail
-          LIBNFTABLES_RUN_PRIVILEGED_TESTS=1 "$HOME/.dotnet/dotnet" test LibNftables.slnx --no-build --filter "Category=Privileged"
+          LIBNFTABLES_RUN_PRIVILEGED_TESTS=1 "${DOTNET_CMD}" test LibNftables.slnx --no-build --filter "Category=Privileged"
diff --git a/README.md b/README.md
index 4436be7..a8cd02b 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,8 @@ The repository includes a Gitea Actions smoke workflow at `.gitea/workflows/smok
 - Runner label: `debian-13`
 - Job model: root-aware smoke verification
 - Workflow actions:
-  - bootstrap the .NET 10 SDK inside the job
+  - use a preinstalled .NET 10 SDK when the runner already has one
+  - otherwise bootstrap a local .NET 10 SDK inside the job
   - restore
   - build
   - always run the non-privileged smoke test lane