v0.6.2 - added -s and -m options

README.md

@@ -26,7 +26,16 @@ TOML can also have tables (sections). They are referred to with dotted paths:
 ```bash
 export MYSECTIONVALUE=`stoml filename mysection.key`
 ```
-Error messages can be suppressed using `-q`. This is useful when running in a script. 
+
+
+Error messages can be suppressed using `-q`.
+Empty strings, missing options and whitespace results can be turned into errors using `-s`.
+These are useful when running in a script.
+
+Results are interpreted as space-separated words by default. (This is the easiest to reuse in Linux Shell scripts.)
+You can change this behaviour with `-m` which will turn multi-line entries in a config file into multi-line output.
+It will also use new-line instead of space when listing sections.
+
 ## Caveats
 This is a `simple` implementation of parsing TOML.
 This means that it will work well with atomic types in the configuration, like string, int or boolean.

cmd/root.go

@@ -12,6 +12,8 @@ import (
 
 const epsilon = 1e-9 // Margin of error
 
+var multiString bool
+
 func RunRoot(cmd *cobra.Command, args []string) (output string, err error) {
 	validateArgs := cobra.ExactArgs(2)
 	if err = validateArgs(cmd, args); err != nil {
@@ -47,7 +49,11 @@ func RunRoot(cmd *cobra.Command, args []string) (output string, err error) {
 			r = append(r,k)
 		}
 		sort.Strings(r)
-		output = strings.Join(r, " ")
+		if multiString {
+			output = strings.Join(r, "\n")
+		} else {
+			output = strings.Join(r, " ")
+		}
 	// Return list of strings as result
 	default:
 		// Return all section names and root section keys if "." is provided
@@ -57,9 +63,17 @@ func RunRoot(cmd *cobra.Command, args []string) (output string, err error) {
 				r = append(r,k)
 			}
 			sort.Strings(r)
-			output = strings.Join(r, " ")
+			if multiString {
+				output = strings.Join(r, "\n")
+			} else {
+				output = strings.Join(r, " ")
+			}
 		} else {
-			output = strings.Join(viper.GetStringSlice(key), " ")
+			if multiString {
+				output = viper.GetString(key)
+			} else {
+				output = strings.Join(viper.GetStringSlice(key), " ")
+			}
 		}
 	}
 	return
@@ -84,6 +98,8 @@ Source and documentation is available at https://github.com/freshautomations/sto
 	}
 	rootCmd.Use = "stoml <filename> <key>"
 	rootCmd.PersistentFlags().BoolVarP(&exit.Quiet,"quiet", "q", false, "do not display error messages")
+	rootCmd.PersistentFlags().BoolVarP(&exit.Strict,"strict", "s", false, "fail if result is empty, non-existent or just whitespaces")
+	rootCmd.PersistentFlags().BoolVarP(&multiString,"multi", "m", false, "read the result as-is, useful with multi-line entries")
 
 	return rootCmd.Execute()
 }

defaults/defaults.go

@@ -1,4 +1,4 @@
 package defaults
 
 // Application version
-const Version = "0.6.1"
+const Version = "0.6.2"

exit/exit.go

@@ -3,9 +3,11 @@ package exit
 import (
 	"fmt"
 	"os"
+	"strings"
 )
 
 var Quiet bool
+var Strict bool
 
 func Fail(err error) {
 	if !Quiet {
@@ -15,6 +17,9 @@ func Fail(err error) {
 }
 
 func Succeed(result string) {
+	if Strict && strings.TrimSpace(result) == "" {
+		os.Exit(1)
+	}
 	fmt.Print(result)
 	os.Exit(0)
 }

test.toml

@@ -12,3 +12,4 @@ numbers = [1, 1, 2, 3, 5]
 strings = ["The answer is", "42"]
 
 [emptysection]
+