Add error threshold input parameter

README.md

@@ -52,7 +52,7 @@ jobs:
 
 ## Passing `project` parameter
 
-If your working with a monorepo or your `tsconfig.json` is not in the root repo,
+If you're working with a monorepo or your `tsconfig.json` is not in the root repo,
 or you use different config file, you can provide a `project` parmeter with a
 path to the repo itself:
 
@@ -62,3 +62,13 @@ path to the repo itself:
   with:
     project: packages/subpackage/tsconfig.json
 ```
+## Passing `error_fail_threshold` parameter
+
+If you're incrementally adopting typescript in a project, you may not want to fail the entire workflow on a single typescript error. `error_fail_threshold` allows you to pass the maximum number of errors at which the step passes. Defaults to 0:
+
+```yaml
+- name: Typecheck
+  uses: gozala/typescript-error-reporter-action@v1.0.9
+  with:
+    error_fail_threshold: 100
+```

action.yml

@@ -11,3 +11,7 @@ inputs:
   project:
     description: 'Optional project path.'
     required: false
+  error_fail_threshold:
+    description: 'Optional number of errors threshold at which this step fails.'
+    required: false
+

src/index.ts

@@ -55,8 +55,12 @@ const typecheck = (projectPath:string) => {
     ? performIncrementalCompilation(ts, projectPath)
     : performCompilation(ts, config)
 
-  if (errors > 0) {
-    setFailed(`Found ${errors} errors!`)
+
+  const errThreshold = Number(getInput('error_fail_threshold') || 0)
+  const logString = `Found ${errors} errors!`
+  console.log(logString)
+  if (errors > errThreshold) {
+    setFailed(logString)
   }
 }