[PATCH v3 3/3] fixup! CI: limit GitHub Actions to designated branches

[Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx>]

Here is the patch to for discussion.

Should we want to enable GitHub Action for all repo-s, except git/git
and gitster/git. We'll want to have this patch fix-up to the previous
one.

With this patch merged, contributors will need to opt-out by push to
a branch/tag with "wip" anywhere in the refname.

Note that, integration branches (maint, master, next, jch, pu) will
always be built, regardless of repo.
Since the current condition is ugly enough, and I find it's very hard to
wrap my head around those condition.

Should this patch get fixing up into previous one, please remove the second
paragraph in the body of previous patch.

Thanks.

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx>
---
 .github/workflows/main.yml      | 80 ++++++++++++++++++++++++++++++---
 Documentation/SubmittingPatches |  4 +-
 2 files changed, 76 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9bba0ce068..81dfa3d228 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,12 +4,8 @@ on:
   pull_request:
   push:
     branches:
-      - maint
-      - master
-      - next
-      - jch
-      - pu
-      - 'for-ci**'
+      - '**'
+      - '!**wip**'
     tags:
       - '**'
       - '!**wip**'
@@ -19,6 +15,15 @@ env:
 
 jobs:
   windows-build:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v1
@@ -43,6 +48,15 @@ jobs:
         name: windows-artifacts
         path: artifacts
   windows-test:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     runs-on: windows-latest
     needs: [windows-build]
     strategy:
@@ -82,6 +96,15 @@ jobs:
         name: failed-tests-windows
         path: ${{env.FAILED_TEST_ARTIFACTS}}
   vs-build:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     env:
       MSYSTEM: MINGW64
       NO_PERL: 1
@@ -130,6 +153,15 @@ jobs:
         name: vs-artifacts
         path: artifacts
   vs-test:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     runs-on: windows-latest
     needs: [vs-build]
     strategy:
@@ -166,6 +198,15 @@ jobs:
                           ${{matrix.nr}} 10 t[0-9]*.sh)
         "@
   regular:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     strategy:
       matrix:
         vector:
@@ -201,6 +242,15 @@ jobs:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
   dockerized:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     strategy:
       matrix:
         vector:
@@ -225,6 +275,15 @@ jobs:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
   static-analysis:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     env:
       jobname: StaticAnalysis
     runs-on: ubuntu-latest
@@ -233,6 +292,15 @@ jobs:
     - run: ci/install-dependencies.sh
     - run: ci/run-static-analysis.sh
   documentation:
+    if: >-
+      ${{
+      (github.repository_owner != 'git' && github.repository_owner != 'gitster') ||
+      github.ref == 'refs/heads/maint' ||
+      github.ref == 'refs/heads/master' ||
+      github.ref == 'refs/heads/next' ||
+      github.ref == 'refs/heads/jch' ||
+      github.ref == 'refs/heads/pu'
+      }}
     env:
       jobname: Documentation
     runs-on: ubuntu-latest
diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index e516b080df..a2e6a3d2ca 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -79,8 +79,8 @@ test your changes on Linux, Mac (and hopefully soon Windows).  See
 GitHub-Travis CI hints section for details.
 
 Alternately, you can use GitHub Actions (which supports testing your changes
-on Linux, macOS, and Windows) by pushing into a branch whose name starts
-with "for-ci", or a tag whose name doesn't have `wip`,
+on Linux, macOS, and Windows) by pushing into a branch or tag
+whose name doesn't have `wip`,
 or opening a GitHub's Pull Request against
 https://github.com/git/git.git or a fork of that repository.
 
-- 
2.26.2.672.g232c24e857