From c979773c8521cfb9d46a2ea9a780990ff69c2721 Mon Sep 17 00:00:00 2001
From: jose <jose.pedrosa@reddit.com>
Date: Fri, 10 May 2024 23:49:18 +0100
Subject: [PATCH] feat: enable adding the chart to existing releases

---
 pkg/github/github.go | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/pkg/github/github.go b/pkg/github/github.go
index 4143c50d..cc3e1912 100644
--- a/pkg/github/github.go
+++ b/pkg/github/github.go
@@ -16,6 +16,7 @@ package github
 
 import (
 	"context"
+	"fmt"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -115,7 +116,14 @@ func (c *Client) CreateRelease(_ context.Context, input *Release) error {
 
 	release, _, err := c.Repositories.CreateRelease(context.TODO(), c.owner, c.repo, req)
 	if err != nil {
-		return err
+		if !isErrTagAlreadyExist(err) {
+			return err
+		}
+
+		release, _, err = c.Repositories.GetReleaseByTag(context.TODO(), c.owner, c.repo, input.Name)
+		if err != nil {
+			return fmt.Errorf("getting the existing relase: %w", err)
+		}
 	}
 
 	for _, asset := range input.Assets {
@@ -126,6 +134,18 @@ func (c *Client) CreateRelease(_ context.Context, input *Release) error {
 	return nil
 }
 
+func isErrTagAlreadyExist(err error) bool {
+	var ghErrs *github.ErrorResponse
+	if errors.As(err, &ghErrs) {
+		for _, ghErr := range ghErrs.Errors {
+			if ghErr.Code == "already_exists" && ghErr.Field == "tag_name" {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // CreatePullRequest creates a pull request in the repository specified by repoURL.
 // The return value is the pull request URL.
 func (c *Client) CreatePullRequest(owner string, repo string, message string, head string, base string) (string, error) {