Support/1.2.x Fix DCO to be force-pushed

.clang-format

@@ -8,3 +8,4 @@ DerivePointerAlignment: false
 PointerAlignment: Right
 AllowShortFunctionsOnASingleLine: Empty
 AllowShortIfStatementsOnASingleLine: false
+

.clang-format-ignore

@@ -0,0 +1,2 @@
+CMakeLists.txt
+*.cmake

.github/PULL_REQUEST_TEMPLATE.md

@@ -14,6 +14,13 @@
 <!-- We must be able to understand the design of your change from this description. If we can't get a good idea of what the code will be doing from the description here, the pull request may be closed at the maintainers' discretion. -->
 <!-- Keep in mind that the maintainer reviewing this PR may not be familiar with or have worked with the code here recently, so please walk us through the concepts. -->
 
+### Issue
+
+<!-- Put in the note about what issue is resolved by this PR, especially if it is a GitHub issue. It should be in the form of "Resolves #N" ("Closes", "Fixes" also work), where N is the number of the issue. 
+More information about this is available in GitHub documentation: https://docs.github.com/en/github/managing-your-work-on-github/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword -->
+
+<!-- If it is not a GitHub issue but a JIRA issue, just put the link here -->
+
 ### Benefits
 
 <!-- What benefits will be realized by the code change? -->

.github/README.md

@@ -0,0 +1,31 @@
+GitHub Actions
+==============
+
+GitHub Workflow description in YAML does not support anchors.
+There are several workarounds => anyway they come to building-editing workflow yaml from source.
+So I suggest yet another one `make-workflows.sh` based on YAML tool `yq`.
+
+### USAGE
+0. Move your workflows to `.github/*.src.yml`
+1. Put `make-workflows.sh` to directory `.github/`
+2. (optional) Copy or link `pre-commit-hook.sh` to `.git/hooks/pre-commit`
+   Like `ln -s ../../.github/pre-commit-hook.sh .git/hooks/pre-commit`
+
+### Using pre-commit
+```yaml
+repos:
+- repo: local
+  hooks:
+  - id: make-workflows
+    name: Make GitHub workflows from *.src.yml
+    entry: bash -c '.github/make-workflows.sh && git add .github/workflows'
+    language: system
+    types: [yaml]
+    pass_filenames: false
+```
+
+### Links
+1. https://stackoverflow.com/questions/67368724/share-same-steps-for-different-github-actions-jobs
+2. https://github.community/t/support-for-yaml-anchors/16128/60
+3. https://github.com/mithro/actions-includes
+4. https://github.com/allejo/gha-workflows