feature: Add global prefix flag

Author: loliveiracodacy

.gitignore

@@ -3,7 +3,9 @@ bin
 _dist
 .version
 
+.idea/
 .vscode/
 *~
 .*.swp
 
+

cmd/main.go

@@ -17,6 +17,7 @@ var verbose bool
 var dryRun bool
 var clean bool
 var tagCleaned string
+var prefix string
 
 type valueFilesList []string
 
@@ -50,6 +51,7 @@ func main() {
 	f.StringVarP(&profile, "profile", "p", "", "aws profile to fetch the ssm parameters")
 	f.BoolVarP(&clean, "clean", "c", false, "clean all template commands from file")
 	f.StringVarP(&tagCleaned, "tag-cleaned", "t", "", "replace cleaned template commands with given string")
+	f.StringVarP(&prefix, "prefix", "P", "", "prefix for all parameters without affecting the path. ignored if individual prefix is defined")
 
 	cmd.MarkFlagRequired("values")
 
@@ -60,7 +62,7 @@ func main() {
 }
 
 func run(cmd *cobra.Command, args []string) error {
-	funcMap := hssm.GetFuncMap(profile, clean, tagCleaned)
+	funcMap := hssm.GetFuncMap(profile, prefix, clean, tagCleaned)
 	for _, filePath := range valueFiles {
 		content, err := hssm.ExecuteTemplate(filePath, funcMap, verbose)
 		if err != nil {

internal/template.go

@@ -49,7 +49,7 @@ func ExecuteTemplate(sourceFilePath string, funcMap template.FuncMap, verbose bo
 }
 
 // GetFuncMap builds the relevant function map to helm_ssm
-func GetFuncMap(profile string, clean bool, tagCleaned string) template.FuncMap {
+func GetFuncMap(profile string, prefix string, clean bool, tagCleaned string) template.FuncMap {
 
 	cleanFunc := func(...interface{}) (string, error) {
 		return tagCleaned, nil
@@ -69,6 +69,17 @@ func GetFuncMap(profile string, clean bool, tagCleaned string) template.FuncMap
 		funcMap["ssm"] = cleanFunc
 	} else {
 		funcMap["ssm"] = func(ssmPath string, options ...string) (string, error) {
+			var hasPrefix = false
+			for _, s := range options {
+				if strings.HasPrefix(s, "prefix") {
+					hasPrefix = true
+				}
+			}
+
+			if !hasPrefix {
+				options = append(options, fmt.Sprintf("prefix=%s", prefix))
+			}
+
 			optStr, err := resolveSSMParameter(awsSession, ssmPath, options)
 			str := ""
 			if optStr != nil {

internal/template_test.go

@@ -45,7 +45,7 @@ func TestCleanTemplate(t *testing.T) {
 	}
 	defer syscall.Unlink(templateFilePath)
 	ioutil.WriteFile(templateFilePath, []byte(templateContent), 0644)
-	cleanFuncMap := GetFuncMap("DUMMY", true, "")
+	cleanFuncMap := GetFuncMap("DUMMY", "", true, "")
 	content, _ := ExecuteTemplate(templateFilePath, cleanFuncMap, false)
 	if content != expectedOutput {
 		t.Errorf("Expected content \"%s\". Got \"%s\"", expectedOutput, content)
@@ -64,7 +64,7 @@ func TestCleanAndTagTemplate(t *testing.T) {
 	}
 	defer syscall.Unlink(templateFilePath)
 	ioutil.WriteFile(templateFilePath, []byte(templateContent), 0644)
-	cleanFuncMap := GetFuncMap("DUMMY", true, cleanTag)
+	cleanFuncMap := GetFuncMap("DUMMY", "", true, cleanTag)
 	content, _ := ExecuteTemplate(templateFilePath, cleanFuncMap, false)
 	if content != expectedOutput {
 		t.Errorf("Expected content \"%s\". Got \"%s\"", expectedOutput, content)
@@ -100,7 +100,7 @@ func TestFailExecuteTemplate(t *testing.T) {
 
 func TestSsmFunctionExistsInFuncMap(t *testing.T) {
 	t.Logf("\"ssm\" function should exist in function map.")
-	funcMap := GetFuncMap("", false, "")
+	funcMap := GetFuncMap("", "", false, "")
 	keys := make([]string, len(funcMap))
 	for k := range funcMap {
 		keys = append(keys, k)
@@ -112,7 +112,7 @@ func TestSsmFunctionExistsInFuncMap(t *testing.T) {
 
 func TestSprigFunctionsExistInFuncMap(t *testing.T) {
 	t.Logf("\"quote\" function (from sprig) should exist in function map.")
-	funcMap := GetFuncMap("", false, "")
+	funcMap := GetFuncMap("", "", false, "")
 	keys := make([]string, len(funcMap))
 	for k := range funcMap {
 		keys = append(keys, k)