fix: workflow fails whenever there's asset with same build name attac…

…hed on the draft (#208)

Co-authored-by: Lucas Nogueira <lucas@tauri.studio>

.changes/delete-assets.md

@@ -0,0 +1,5 @@
+---
+"action": patch
+---
+
+Delete assets from existing release, allowing running the action twice for the same version if an error happens.

packages/action/src/create-release.ts

@@ -9,11 +9,20 @@ interface Release {
   htmlUrl: string
 }
 
+interface GitHubReleaseAsset {
+  id: number
+  name: string
+  state: string
+  size: number
+  browser_download_url: string
+}
+
 interface GitHubRelease {
   id: number
   upload_url: string
   html_url: string
   tag_name: string
+  assets: GitHubReleaseAsset[]
 }
 
 function allReleases(
@@ -25,6 +34,30 @@ function allReleases(
   )
 }
 
+
+function getAssetPlatform(platform: string, fileName: string): string | null {
+	// macOS
+	if (
+		(fileName.includes(".app.tar.gz") || fileName.includes(".dmg")) &&
+		platform === "darwin"
+	) {
+		return 'darwin'
+	}
+
+	// Windows
+	if (fileName.includes('.msi') && platform === "win32") {
+		return 'win64'
+	}
+
+  // Linux
+	if ((fileName.includes('AppImage') || fileName.includes("deb")) && platform === "linux") {
+		return 'linux'
+	}
+
+  return null
+}
+
+
 export default async function createRelease(
   tagName: string,
   releaseName: string,
@@ -68,6 +101,19 @@ export default async function createRelease(
           console.log(
             `Found draft release with tag ${tagName} on the release list.`
           )
+          // Remove all assets from the existing release
+          for (const asset of release.assets) {
+            if (getAssetPlatform(process.platform, asset.name)) {
+              console.log(
+                `Deleting asset ${asset.name} from the existing draft release`
+              )
+              await github.rest.repos.deleteReleaseAsset({
+                asset_id: asset.id,
+                owner,
+                repo,
+              })
+            }
+          }
           break
         }
       }