Merge pull request #3 from straw-hat-team/add-asdf-get-all-versions

feat: add asdf get versions

asdf/get-versions/README.md

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+# ASDF Get Versions
+
+Returns the versions from the .tool-versions file managed by asdf.
+
+- [How-to Guides](#how-to-guides)
+
+## Explanations
+
+This action will return all the version from the .tool-versions file managed by
+asdf as a JSON string where the key is the package name and the value is the
+version.
+
+## How-to Guides
+
+### Get Started
+
+1. Make sure `actions/checkout` action is used before this action.
+2. Add this action to your job in your workflow, here is an example:
+
+    ```yml
+    #...
+    jobs:
+      something:
+        name: Setup NodeJS
+        runs-on: ubuntu-latest
+        steps:
+          - uses: actions/checkout@v2 # checkout the repository first
+          - uses: straw-hat-team/github-actions-workflows/asdf/git-versions@master
+            id: asdf-versions
+          - shell: sh
+            run: |
+              # Notice that the output is a JSON string
+              echo ${{ fromJSON(steps.asdf-versions.outputs.versions).nodejs }}
+    ```

asdf/get-versions/action.yml

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+name: ASDF Get Versions
+description: Returns the versions from the .tool-versions file managed by asdf
+author: Straw Hat Team
+
+inputs:
+  version-file:
+    description: The path to the .tool-versions file
+    required: false
+    default: .tool-versions
+
+outputs:
+  versions:
+    description: "The versions from the .tool-versions file as a JSON string"
+    value: ${{ steps.get-versions.outputs.versions }}
+
+runs:
+  using: composite
+  steps:
+    - name: Get the versions from the .tool-versions file
+      shell: bash
+      id: get-versions
+      run: |
+        TOOL_VERSIONS_FILE_PATH=${{ inputs.version-file }}
+        if [ ! -f $TOOL_VERSIONS_FILE_PATH ]; then
+          echo "\033[0;31m.tool-versions file not found"
+          exit 1
+        fi
+        VERSIONS=()
+          while read -r line; do
+          read -r package version <<< "$line"
+          echo "found package: '$package' with version: '$version'"
+          VERSIONS+=("\"$package\": \"$version\"")
+        done < $TOOL_VERSIONS_FILE_PATH
+        echo "versions={$(IFS=,; echo "${VERSIONS[*]}")}" >> $GITHUB_OUTPUT