Merge branch 'fix/fix_push_to_github' into 'master'

fix(ci): fix push to github

See merge request espressif/esp-thread-lib!51

.gitlab-ci.yml

@@ -8,11 +8,11 @@ push_master_to_github:
   only:
     - master
     - /^release\/v/
+    - /^v\d+\.\d+/
 #  when: on_success
   image: $CI_DOCKER_REGISTRY/esp32-ci-env
   variables:
-    GIT_STRATEGY: clone
-    GITHUB_PUSH_REFS: refs/remotes/origin/release refs/remotes/origin/master
+    GIT_DEPTH: 0
   script:
     - mkdir -p ~/.ssh
     - chmod 700 ~/.ssh
@@ -21,11 +21,10 @@ push_master_to_github:
     - chmod 600 ~/.ssh/id_rsa
     - echo -e "Host github.com\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
     - git remote add github git@github.com:espressif/esp-thread-lib.git
-    # What the next line of script does: goes through the list of refs for all branches we push to github,
-    # generates a snippet of shell which is evaluated. The snippet checks CI_BUILD_REF against the SHA
-    # (aka objectname) at tip of each branch, and if any SHAs match then it checks out the local branch
-    # and then pushes that ref to a corresponding github branch
-    #
-    # NB: In gitlab 9.x, CI_BUILD_REF was deprecated. New name is CI_COMMIT_REF. If below command suddenly
-    # generates bash syntax errors, this is probably why.
-    - eval $(git for-each-ref --shell bash --format 'if [ $CI_BUILD_REF == %(objectname) ]; then git checkout -B %(refname:strip=3); git push --follow-tags github %(refname:strip=3); fi;' $GITHUB_PUSH_REFS)
+    # Ref: esp-idf tools/ci/push_to_github.sh
+    - |
+      if [ -n "${CI_COMMIT_TAG}" ]; then
+        git push github "${CI_COMMIT_TAG}"
+      else
+        git push github "${CI_COMMIT_SHA}:refs/heads/${CI_COMMIT_REF_NAME}"
+      fi