Add --force-update to helm repo add command (breaking change in 3.3.2…

… helm)

internal/app/cli.go

@@ -6,7 +6,6 @@ import (
 	"os"
 	"strings"
 
-	version "github.com/hashicorp/go-version"
 	"github.com/imdario/mergo"
 	"github.com/joho/godotenv"
 )
@@ -144,15 +143,8 @@ func (c *cli) parse() {
 		c.parallel = 1
 	}
 
-	helmVersion := strings.TrimSpace(getHelmVersion())
-	extractedHelmVersion := helmVersion
-	if !strings.HasPrefix(helmVersion, "v") {
-		extractedHelmVersion = strings.TrimSpace(strings.Split(helmVersion, ":")[1])
-	}
-	log.Verbose("Helm client version: " + extractedHelmVersion)
-	v1, _ := version.NewVersion(extractedHelmVersion)
-	jsonConstraint, _ := version.NewConstraint(">=3.0.0")
-	if !jsonConstraint.Check(v1) {
+	log.Verbose("Helm client version: " + strings.TrimSpace(getHelmVersion()))
+	if checkHelmVersion("<3.0.0") {
 		log.Fatal("this version of Helmsman does not work with helm releases older than 3.0.0")
 	}
 

internal/app/helm_helpers.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"github.com/hashicorp/go-version"
 	"net/url"
 	"strings"
 
@@ -57,6 +58,20 @@ func getHelmVersion() string {
 	return result.output
 }
 
+func checkHelmVersion(constraint string) bool {
+	helmVersion := strings.TrimSpace(getHelmVersion())
+	extractedHelmVersion := helmVersion
+	if !strings.HasPrefix(helmVersion, "v") {
+		extractedHelmVersion = strings.TrimSpace(strings.Split(helmVersion, ":")[1])
+	}
+	v, _ := version.NewVersion(extractedHelmVersion)
+	jsonConstraint, _ := version.NewConstraint(constraint)
+	if jsonConstraint.Check(v) {
+		return true
+	}
+	return false
+}
+
 // helmPluginExists returns true if the plugin is present in the environment and false otherwise.
 // It takes as input the plugin's name to check if it is recognizable or not. e.g. diff
 func helmPluginExists(plugin string) bool {
@@ -132,7 +147,11 @@ func addHelmRepos(repos map[string]string) error {
 			repoLink = u.String()
 		}
 
-		cmd := helmCmd(concat([]string{"repo", "add", repoName, repoLink}, basicAuthArgs), "Adding helm repository [ "+repoName+" ]")
+		repoAddFlags := ""
+		if checkHelmVersion(">=3.3.2") {
+			repoAddFlags += "--force-update"
+		}
+		cmd := helmCmd(concat([]string{"repo", "add", repoAddFlags, repoName, repoLink}, basicAuthArgs), "Adding helm repository [ "+repoName+" ]")
 		// check current repository against existing repositories map in order to make sure it's missing and needs to be added
 		if existingRepoUrl, ok := existingRepos[repoName]; ok {
 			if repoLink == existingRepoUrl {