feat: add option to not save cache (#851)

Author: navijation

Diff for: README.md

@@ -67,6 +67,10 @@ jobs:
           #           takes precedence over all other caching options.
           # skip-cache: true
 
+          # Optional: if set to true, caches will not be saved, but they may still be restored,
+          #           subject to other options
+          # skip-save-cache: true
+
           # Optional: if set to true, then the action won't cache or restore ~/go/pkg.
           # skip-pkg-cache: true
 

Diff for: action.yml

@@ -29,6 +29,12 @@ inputs:
       takes precedence over all other caching options.
     default: 'false'
     required: false
+  skip-save-cache:
+    description: |
+      if set to true then the action will not save any caches, but it may still
+      restore existing caches, subject to other options.
+    default: 'false'
+    required: false
   skip-pkg-cache:
     description: "if set to true then the action doesn't cache or restore ~/go/pkg."
     default: 'false'

Diff for: dist/post_run/index.js

@@ -116,6 +116,7 @@ export async function restoreCache(): Promise<void> {
 
 export async function saveCache(): Promise<void> {
   if (core.getInput(`skip-cache`, { required: true }).trim() == "true") return
+  if (core.getInput(`skip-save-cache`, { required: true }).trim() == "true") return
 
   // Validate inputs, this can cause task failure
   if (!utils.isValidEvent()) {