Add only push tags support (#154)

* feat: Add only push tags support

Author: ZPascal

README.md

@@ -281,6 +281,7 @@ jobs:
 | force_with_lease   | boolean | false                 | Determines if force-with-lease push is used. Please specify the corresponding branch inside `ref` section of the checkout action e.g. `ref: ${{ github.head_ref }}`. Be aware, if you want to update the branch and the corresponding tag please use the `force` parameter instead of the `force_with_lease` option. |
 | atomic             | boolean | true                  | Determines if [atomic](https://git-scm.com/docs/git-push#Documentation/git-push.txt---no-atomic) push is used.                                                                                                                                                                                                       |
 | push_to_submodules | string  | 'on-demand'           | Determines if --recurse-submodules=<strategy> is used. The value defines the used strategy.                                                                                                                                                                                                                          |
+| push_only_tags     | boolean | false                 | Determines if the action should only push the tags, default false                                                                                                                                                                                                                                                    |
 | tags               | boolean | false                 | Determines if `--tags` is used.                                                                                                                                                                                                                                                                                      |
 | directory          | string  | '.'                   | Directory to change to before pushing.                                                                                                                                                                                                                                                                               |
 | repository         | string  | ''                    | Repository name. <br /> Default or empty repository name represents <br /> current github repository. <br /> If you want to push to other repository, <br /> you should make a [personal access token](https://github.com/settings/tokens) <br /> and use it as the `github_token` input.                            |

action.yml

@@ -39,6 +39,9 @@ inputs:
   tags:
     description: 'Determines if --tags is used'
     required: false
+  push_only_tags:
+    description: 'Determines if the action should only push the tags, default false'
+    required: false
   directory:
     description: 'Directory to change to before pushing.'
     required: false

start.sh

@@ -6,6 +6,7 @@ INPUT_FORCE=${INPUT_FORCE:-false}
 INPUT_FORCE_WITH_LEASE=${INPUT_FORCE_WITH_LEASE:-false}
 INPUT_SSH=${INPUT_SSH:-false}
 INPUT_TAGS=${INPUT_TAGS:-false}
+INPUT_PUSH_ONLY_TAGS=${INPUT_PUSH_ONLY_TAGS:-false}
 INPUT_DIRECTORY=${INPUT_DIRECTORY:-"."}
 INPUT_PUSH_TO_SUBMODULES=${INPUT_PUSH_TO_SUBMODULES:-""}
 _ATOMIC_OPTION=""
@@ -53,6 +54,8 @@ fi
 
 if ! ${INPUT_FORCE_WITH_LEASE}; then
   ADDITIONAL_PARAMETERS="${remote_repo} HEAD:${INPUT_BRANCH}"
+elif ${INPUT_PUSH_ONLY_TAGS}; then
+  ADDITIONAL_PARAMETERS="${remote_repo}"
 fi
 
 if ${INPUT_FORCE_WITH_LEASE} && ${INPUT_TAGS}; then