add ignore versions property

action.yml

@@ -39,7 +39,14 @@ inputs:
       Number of versions to keep starting with the latest version
     required: false
     default: "1"
-    
+
+  ignore-versions:
+    description: >
+      Comma seperated regex patterns of versions to ignore.
+      Defaults to all major release versions and only deletes pre-release versions.
+    required: false
+    default: "^[\d*]+.[\d*]+.[0*]+$"
+
   token:
     description: >
       Token with the necessary scopes to delete package versions.

dist/index.js

@@ -36,7 +36,10 @@ function getVersionIds(input) {
             const numberVersionsToDelete = versionInfo.length - input.minVersionsToKeep;
             return numberVersionsToDelete <= 0
                 ? []
-                : versionInfo.slice(0, numberVersionsToDelete).map(info => info.id);
+                : versionInfo
+                    .filter(info => !input.ignoreVersions.test(info.version))
+                    .map(info => info.id)
+                    .slice(0, numberVersionsToDelete);
         }));
     }
     return rxjs_1.throwError("Could not get packageVersionIds. Explicitly specify using the 'package-version-ids' input or provide the 'package-name' and 'num-old-versions-to-delete' inputs to dynamically retrieve oldest versions");
@@ -71,6 +74,7 @@ const defaultParams = {
     packageName: '',
     numOldVersionsToDelete: 0,
     minVersionsToKeep: 0,
+    ignoreVersions: new RegExp(''),
     token: ''
 };
 class Input {
@@ -82,6 +86,7 @@ class Input {
         this.packageName = validatedParams.packageName;
         this.numOldVersionsToDelete = validatedParams.numOldVersionsToDelete;
         this.minVersionsToKeep = validatedParams.minVersionsToKeep;
+        this.ignoreVersions = validatedParams.ignoreVersions;
         this.token = validatedParams.token;
     }
     hasOldestVersionQueryInfo() {
@@ -40309,6 +40314,7 @@ function getActionInput() {
         packageName: core_1.getInput('package-name'),
         numOldVersionsToDelete: Number(core_1.getInput('num-old-versions-to-delete')),
         minVersionsToKeep: Number(core_1.getInput('min-versions-to-keep')),
+        ignoreVersions: RegExp(core_1.getInput('ignore-versions')),
         token: core_1.getInput('token')
     });
 }

src/delete.ts

@@ -21,7 +21,10 @@ export function getVersionIds(input: Input): Observable<string[]> {
           versionInfo.length - input.minVersionsToKeep
         return numberVersionsToDelete <= 0
           ? []
-          : versionInfo.slice(0, numberVersionsToDelete).map(info => info.id)
+          : versionInfo
+              .filter(info => !input.ignoreVersions.test(info.version))
+              .map(info => info.id)
+              .slice(0, numberVersionsToDelete)
       })
     )
   }

src/input.ts

@@ -5,6 +5,7 @@ export interface InputParams {
   packageName?: string
   numOldVersionsToDelete?: number
   minVersionsToKeep?: number
+  ignoreVersions?: RegExp
   token?: string
 }
 
@@ -15,6 +16,7 @@ const defaultParams = {
   packageName: '',
   numOldVersionsToDelete: 0,
   minVersionsToKeep: 0,
+  ignoreVersions: new RegExp(''),
   token: ''
 }
 
@@ -25,6 +27,7 @@ export class Input {
   packageName: string
   numOldVersionsToDelete: number
   minVersionsToKeep: number
+  ignoreVersions: RegExp
   token: string
 
   constructor(params?: InputParams) {
@@ -36,6 +39,7 @@ export class Input {
     this.packageName = validatedParams.packageName
     this.numOldVersionsToDelete = validatedParams.numOldVersionsToDelete
     this.minVersionsToKeep = validatedParams.minVersionsToKeep
+    this.ignoreVersions = validatedParams.ignoreVersions
     this.token = validatedParams.token
   }
 

src/main.ts

@@ -15,6 +15,7 @@ function getActionInput(): Input {
     packageName: getInput('package-name'),
     numOldVersionsToDelete: Number(getInput('num-old-versions-to-delete')),
     minVersionsToKeep: Number(getInput('min-versions-to-keep')),
+    ignoreVersions: RegExp(getInput('ignore-versions')),
     token: getInput('token')
   })
 }