add more context to packer vault func error message (#41)

SwampDragons · web-flow · commit 4b7031f77eb9 · 2021-02-18T21:25:54.000-05:00
diff --git a/template/funcs.go b/template/funcs.go
@@ -56,7 +56,10 @@ func Vault(path string, key string) (string, error) {
 		}
 
 		// neither v1 nor v2 proudced a valid value
-		return "", fmt.Errorf("Vault data was empty at the given path. Warnings: %s", strings.Join(secret.Warnings, "; "))
+		return "", fmt.Errorf("Vault data was empty at the given path. Check "+
+			"the Vault function docs for help: "+
+			"https://www.packer.io/docs/templates/hcl_templates/functions/contextual/vault. "+
+			"Original warnings from Vault call: %s", strings.Join(secret.Warnings, "; "))
 	}
 
 	if val, ok := data.(map[string]interface{})[key]; ok {

Original file line number	Diff line number	Diff line change
`@@ -56,7 +56,10 @@ func Vault(path string, key string) (string, error) {`
`56`	`56`	`}`
`57`	`57`
`58`	`58`	`// neither v1 nor v2 proudced a valid value`
`59`		`- return "", fmt.Errorf("Vault data was empty at the given path. Warnings: %s", strings.Join(secret.Warnings, "; "))`
	`59`	`+ return "", fmt.Errorf("Vault data was empty at the given path. Check "+`
	`60`	`+ "the Vault function docs for help: "+`
	`61`	`+ "https://www.packer.io/docs/templates/hcl_templates/functions/contextual/vault. "+`
	`62`	`+ "Original warnings from Vault call: %s", strings.Join(secret.Warnings, "; "))`
`60`	`63`	`}`
`61`	`64`
`62`	`65`	`if val, ok := data.(map[string]interface{})[key]; ok {`