Merge pull request #28 from Erriez/staging/erriez/add-default-value

Add default value

README.md

@@ -23,8 +23,9 @@ on:
   id: tag
   uses: devops-actions/[email protected]
   with:
-    # Optionally strip `v` prefix
-    strip_v: true
+    strip_v: true # Optional: Remove 'v' character from version
+    default: v0.0.0 # Optional: Default version when tag not found
+
 - name: Use tag
   run: echo ${{steps.tag.outputs.tag}}
 ```

action.yml

@@ -7,7 +7,10 @@ inputs:
   strip_v:
     required: false
     default: false
-    description: Whether to strip "v" from the tag or not
+    description: Whether to strip "v" from the tag or not (optional)
+  default:
+    required: false
+    description: Set default version (optional)
 outputs:
   tag:
     description: Git tag name

main.js

@@ -4,16 +4,25 @@ async function main() {
   try {
     const ref = process.env.GITHUB_REF
     const strip_v = process.env.INPUT_STRIP_V
+    const default_version = process.env.INPUT_DEFAULT
+    let tag
+
     if(!ref)
       throw "GITHUB_REF is not defined"
-    if(!ref.startsWith("refs/tags/"))
-      throw `Not a tag ref (${ref})`
-    let tag = ref.replace(/^refs\/tags\//, "")
-
+
+    if(ref.startsWith("refs/tags/"))
+      tag = ref.replace(/^refs\/tags\//, "")
+    else if(default_version)
+      tag = default_version
+    else
+      throw `Not a tag ref (${ref}) or default version not set`
+
+    if(!tag)
+      throw `Not tag version found`
+
     if(strip_v === "true" && tag.startsWith("v"))
       tag = tag.replace(/^v/, "")
 
-
     core.info(`ref=${ref}`)
     core.info(`tag=${tag}`)