From e2f5a781105ed18e18f05538f77f130ae811d091 Mon Sep 17 00:00:00 2001
From: Amit Ben Ami <benami.amit1@gmail.com>
Date: Wed, 21 Dec 2022 11:52:33 +0200
Subject: [PATCH] feat(prefix): adding prefix to the tag query

---
 README.md  | 3 +++
 action.yml | 3 +++
 main.js    | 3 ++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 3121f30..fad4d90 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,10 @@ By default, this action will fail if no tag can be found, however, it accepts a
 tag can be found. Keep in mind that when this action is used in a workflow that has no `.git` directory, it will still 
 fail, and the fallback tag isn't used.
 
+It is also accepts a `prefix` string to query the tags based on it.
+
 * `fallback`: `1.0.0`
+* `prefix`: `tag-prefix`
 
 ## Output
 
diff --git a/action.yml b/action.yml
index 38db9b8..afd33da 100644
--- a/action.yml
+++ b/action.yml
@@ -7,6 +7,9 @@ inputs:
   fallback:
     description: 'Fallback tag to use when no previous tag can be found'
     required: false
+  prefix:
+    description: 'Prefix to query the tag by'
+    required: false
 outputs:
   tag:
     description: 'Latest tag'
diff --git a/main.js b/main.js
index f347af1..f06f28e 100644
--- a/main.js
+++ b/main.js
@@ -1,7 +1,8 @@
 const { exec } = require('child_process');
 const fs = require('fs');
+const tagPrefix = `${process.env.INPUT_PREFIX || ''}*`;
 
-exec(`git for-each-ref --sort=-creatordate --count 1 --format="%(refname:short)" "refs/tags/*"`, (err, tag, stderr) => {
+exec(`git for-each-ref --sort=-creatordate --count 1 --format="%(refname:short)" "refs/tags/${tagPrefix}"`, (err, tag, stderr) => {
     tag = tag.trim();
 
     if (err) {