From c004a6d62fc9b45c4ef6f8ed6ba1016101d4807d Mon Sep 17 00:00:00 2001
From: Egor Suvorov <egor@neon.tech>
Date: Thu, 14 Jul 2022 12:46:38 +0300
Subject: [PATCH] Do not cancel in-progress checks on the `main` branch

See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency

* Previously there was a single concurrency group per each branch.
  As the `main` branch got pushed into frequently, very few commits got
  tested to the end. It resulted in "broken" `main` branch as there were
  no fully successful workflow runs.
  Now the `main` branch gets a separate concurrency group for each commit.
* As GitHub Actions syntax does not have the conditional operator, it is
  emulated via logical and/or operations. Although undocumented, they
  return one of their operands instead of plain true/false.
* Replace 3-space indentation with 2-space indentation while we are here
  to be consistent with the rest of the file.
---
 .github/workflows/build_and_test.yml | 5 +++--
 .github/workflows/codestyle.yml      | 5 +++--
 .github/workflows/pg_clients.yml     | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 75f5828ef4..3a12d19428 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -11,8 +11,9 @@ defaults:
     shell: bash -ex {0}
 
 concurrency:
-   group: ${{ github.workflow }}-${{ github.ref }}
-   cancel-in-progress: true
+  # Allow only one workflow per any non-`main` branch.
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref == 'refs/heads/main' && github.sha || 'anysha' }}
+  cancel-in-progress: true
 
 env:
   RUST_BACKTRACE: 1
diff --git a/.github/workflows/codestyle.yml b/.github/workflows/codestyle.yml
index 2b8a01e94e..345c1d5397 100644
--- a/.github/workflows/codestyle.yml
+++ b/.github/workflows/codestyle.yml
@@ -11,8 +11,9 @@ defaults:
     shell: bash -ex {0}
 
 concurrency:
-   group: ${{ github.workflow }}-${{ github.ref }}
-   cancel-in-progress: true
+  # Allow only one workflow per any non-`main` branch.
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref == 'refs/heads/main' && github.sha || 'anysha' }}
+  cancel-in-progress: true
 
 env:
   RUST_BACKTRACE: 1
diff --git a/.github/workflows/pg_clients.yml b/.github/workflows/pg_clients.yml
index fe4dbea8ac..4ff31ac508 100644
--- a/.github/workflows/pg_clients.yml
+++ b/.github/workflows/pg_clients.yml
@@ -13,8 +13,9 @@ on:
   workflow_dispatch:
 
 concurrency:
-   group: ${{ github.workflow }}-${{ github.ref }}
-   cancel-in-progress: true
+  # Allow only one workflow per any non-`main` branch.
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref == 'refs/heads/main' && github.sha || 'anysha' }}
+  cancel-in-progress: true
 
 jobs:
   test-postgres-client-libs: