Add optional param for HerokuStackVersion

README.md

@@ -82,6 +82,8 @@ _branch only capable for Git Deployment_
 
 **dir** - Application directory in git repository for more complex repositories. The default is root dir. this works for both Dockerfile and Git Deployment.
 
+**herokuStackVersion** - if you want to specify the stack version.  Default is 22 (`heroku-22`)
+
 Good:
 
 ```yml

action.yml

@@ -8,6 +8,9 @@ inputs:
   herokuApiKey:
     description: "Heroku API key"
     required: true
+  herokuStackVersion:
+    description: "Heroku Stack Version Number"
+    required: false
   useDocker:
     description: "Deploy the container image (Dockerfile) to Heroku"
     default: "false"

src/git/main.ts

@@ -2,7 +2,7 @@ import * as core from "@actions/core";
 import { execSync } from "child_process";
 import { checkShallow, gitStack } from "./utils";
 
-const gitDeploymentFn = (AppName: string, HerokuApiKey: string) => {
+const gitDeploymentFn = (AppName: string, HerokuApiKey: string, herokuStack: string) => {
   try {
     execSync(`cat >~/.netrc <<EOF
     machine api.heroku.com
@@ -17,7 +17,7 @@ const gitDeploymentFn = (AppName: string, HerokuApiKey: string) => {
     execSync(`heroku git:remote -a ${AppName}`);
     core.info("✅ set git remote ✅");
     checkShallow();
-    gitStack(AppName);
+    gitStack(AppName, herokuStack);
     if (appDir) {
       execSync(
         `git push heroku \`git subtree split --prefix ${appDir} ${head}\`:refs/heads/main --force`

src/git/utils.ts

@@ -9,8 +9,8 @@ export const checkShallow = (): void => {
     console.log("git unshallow repository🔄");
   }
 };
-export const gitStack = (AppName: string): void => {
-  execSync("heroku stack:set heroku-22");
+export const gitStack = (AppName: string, Stack: string): void => {
+  execSync(`heroku stack:set heroku-${Stack}`);
   execSync("heroku plugins:install heroku-repo");
   execSync(`heroku repo:reset -a ${AppName}`);
 };

src/index.ts

@@ -8,13 +8,14 @@ import gitDeployment from "./git/main";
     process.env.HEROKU_API_KEY = HerokuApiKey;
     const appName = core.getInput("herokuAppName");
     core.info(`Application Name: ${appName}`);
+    const herokuStack = core.getInput("herokuStackVersion") || "22";
     const useDocker = core.getBooleanInput("useDocker");
     if (useDocker) {
       console.log("🐋 deployment with Docker 🐋");
       dockerDeployment(appName);
     } else {
       console.log("🐈 deployment with Git 🐈");
-      gitDeployment(appName, HerokuApiKey);
+      gitDeployment(appName, HerokuApiKey, herokuStack);
     }
   } catch (error) {
     core.setFailed(error as string);