feat: Auto-set head name for markdown table when running in release (#3)

Author: finger563

README.md

@@ -163,11 +163,10 @@ jobs:
       with:
         app_name: "My ESP-IDF App"
         app_path: "."
-        head_name: "${{ github.event.release.tag_name }}"
         idf_target: esp32s3
         idf_version: v5.5
         idf_component_manager: "1" # enable component manager
-        # base_ref is automatically detected for releases (previous tag)
+        # base_ref and head_name are automatically detected for releases
         flash_total_override: 1500000 # optional, number of bytes for app partition in flash for percentage calculation
         post_comment: 'false' # set to false since this is not a PR with comments
 ```
@@ -176,6 +175,7 @@ jobs:
 - Find the previous tag chronologically when processing a release
 - Use that tag as the base reference for comparison  
 - Set the base column name to the actual tag name (e.g., "v1.0.0") for clear labeling
+- Set the head column name to the current release tag (e.g., "v1.1.0") for clear labeling
 - Fall back to a size-only report if it's the first release (no previous tags)
 
 ### Inputs 
@@ -200,7 +200,7 @@ inputs:
     required: false
     default: '0'
   head_name:
-    description: 'Name of the head app (for reporting, defaults to "PR")'
+    description: 'Name of the head app (for reporting, defaults to "PR", auto-set to tag name for releases)'
     required: false
     default: 'PR'
   base_name:

action.yml

@@ -92,6 +92,7 @@ runs:
       run: |
         base_ref="${{ inputs.base_ref }}"
         base_name="${{ inputs.base_name }}"
+        head_name="${{ inputs.head_name }}"
         
         # If no base_ref provided, try to determine it automatically
         if [ -z "$base_ref" ]; then
@@ -107,6 +108,11 @@ runs:
             current_tag="${{ github.event.release.tag_name }}"
             echo "Current release tag: $current_tag"
             
+            # Auto-set head_name to current tag if not already specified
+            if [ "$head_name" = "PR" ]; then
+              head_name="$current_tag"
+            fi
+            
             # Get all tags sorted by creation date (newest first), exclude current tag
             prev_tag=$(git --no-pager tag --sort=-creatordate | grep -v "^${current_tag}$" | head -n1 || true)
             
@@ -130,13 +136,15 @@ runs:
         
         echo "base_ref=$base_ref" >> $GITHUB_OUTPUT
         echo "base_name=$base_name" >> $GITHUB_OUTPUT
+        echo "head_name=$head_name" >> $GITHUB_OUTPUT
         if [ -n "$base_ref" ]; then
           echo "has_base_ref=true" >> $GITHUB_OUTPUT
           echo "Using base_ref: $base_ref (base_name: $base_name)"
         else
           echo "has_base_ref=false" >> $GITHUB_OUTPUT
           echo "No base_ref - will generate size-only report"
         fi
+        echo "Using head_name: $head_name"
 
     - name: Checkout BASE
       if: ${{ steps.determine_base_ref.outputs.has_base_ref == 'true' }}
@@ -179,9 +187,9 @@ runs:
       run: |
         # generate markdown
         if [ "${{ steps.determine_base_ref.outputs.has_base_ref }}" = "true" ]; then
-          md=$(${{ steps.id_python_313.outputs.python-path }} ${{ github.action_path }}/render_markdown.py --app-name "${{ inputs.app_name }}" --base-name "${{ steps.determine_base_ref.outputs.base_name }}" --head-name "${{ inputs.head_name }}" --head-json head/${{ inputs.app_path }}/size.json --base-json base/${{ inputs.app_path }}/size.json)
+          md=$(${{ steps.id_python_313.outputs.python-path }} ${{ github.action_path }}/render_markdown.py --app-name "${{ inputs.app_name }}" --base-name "${{ steps.determine_base_ref.outputs.base_name }}" --head-name "${{ steps.determine_base_ref.outputs.head_name }}" --head-json head/${{ inputs.app_path }}/size.json --base-json base/${{ inputs.app_path }}/size.json)
         else
-          md=$(${{ steps.id_python_313.outputs.python-path }} ${{ github.action_path }}/render_markdown.py --app-name "${{ inputs.app_name }}" --head-name "${{ inputs.head_name }}" --head-json head/${{ inputs.app_path }}/size.json --no-base)
+          md=$(${{ steps.id_python_313.outputs.python-path }} ${{ github.action_path }}/render_markdown.py --app-name "${{ inputs.app_name }}" --head-name "${{ steps.determine_base_ref.outputs.head_name }}" --head-json head/${{ inputs.app_path }}/size.json --no-base)
         fi
         # append to summary and set output
         echo "$md" >> "$GITHUB_STEP_SUMMARY"