chore(ci): explicit concurrency groups now the shared runner holds 2 slots (#102)

Companion to sow-platform#189 (runner capacity 1 -> 2). Capacity 1 was the implicit mutex serializing every workflow; this makes the exclusions explicit: side-effectful workflows serialized (never cancelled mid-run), PR-triggered checks per-ref with cancel-in-progress.Reviewed-on: #102 Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
2026-08-05 18:31:23 +00:00
parent 87feaf96b7
commit 166ffb545e
3 changed files with 18 additions and 0 deletions
@@ -7,6 +7,12 @@ on:

 permissions: read-all

+# One run per ref: a new push obsoletes the run on the old head, so cancel it
+# and free the runner slot for the run that can still matter.
+concurrency:
+  group: ci-${{ gitea.ref }}
+  cancel-in-progress: true
+
 jobs:
  ci:
    runs-on: nix-docker