Added ability to use custom directories

This bring the ability to configure a custom directory in the case that the package is not in the root folder. It also checks in case that the user added the whole package json file and it strips it out.

README.md

@@ -29,6 +29,7 @@ jobs:
         tag_name: "v%s"
         tag_message: "v%s"
         commit_pattern: "^Release (\\S+)"
+        package_path: "."
       env: # More info about the environment variables in the README
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Leave this as is, it's automatically generated
         NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }} # You need to set this in your repo settings
@@ -43,6 +44,7 @@ These inputs are optional: that means that if you don't enter them, default valu
 - `tag_name`: the name pattern of the new tag
 - `tag_message`: the message pattern of the new tag
 - `commit_pattern`: pattern that the commit message needs to follow
+- `package_path`: custom directory in the case that the package is not in the root.
 
 ### Environment variables
 

index.js

@@ -1,12 +1,12 @@
 #!/usr/bin/env node
 
 const process = require("process");
-const { join } = require("path");
+const { join, dirname } = require("path");
 const { spawn } = require("child_process");
 const { readFile } = require("fs");
 
 async function main() {
-  const dir = process.env.GITHUB_WORKSPACE || "/github/workspace";
+  const dir = getPackageDirectory();
 
   const eventFile =
     process.env.GITHUB_EVENT_PATH || "/github/workflow/event.json";
@@ -40,6 +40,16 @@ function getEnv(name) {
   return process.env[name] || process.env[`INPUT_${name}`];
 }
 
+function getPackageDirectory() {
+  const workspace = process.env.GITHUB_WORKSPACE || "/github/workspace";
+  const packageLocation = join(workspace, placeholderEnv("PACKAGE_PATH", "."));
+  if(packageLocation.includes("package.json")){
+    return dirname(packageLocation);
+  }
+
+  return packageLocation;
+}
+
 function placeholderEnv(name, defaultValue) {
   const str = getEnv(name);
   if (!str) {