Add GRUS_PRINT_PATH variable & bump version to v0.2.1

README.org

@@ -26,10 +26,13 @@ be changed with two environment variables documented below.
 *Note*: If grus couldn't unjumble the word with first dictionary then it'll search
 in next dictionary, search stops once the word gets unjumbled.
 
-| Environment variable | Explanation                | Non-default values |
-|----------------------+----------------------------+--------------------|
-| =GRUS_SEARCH_ALL=      | Search in all dictionaries | 1 / true           |
-| =GRUS_ANAGRAMS=        | Print all anagrams         | 1 / true           |
+| Environment variable      | Explanation                        |
+|---------------------------+------------------------------------|
+| =GRUS_SEARCH_ALL=           | Search in all dictionaries         |
+| =GRUS_ANAGRAMS=             | Print all anagrams                 |
+| =GRUS_PRINT_PATH= =(v0.2.1+)= | Print dictionary path before words |
+
+Set these environment variable to /1 / true/ to change behaviour.
 ** Default Dictionaries
 These files will be checked by default (in order).
 - =/usr/local/share/dict/words=
@@ -57,6 +60,9 @@ GRUS_SEARCH_ALL=1 grus word /path/to/dict1 /path/to/dict2
 
 # search for word in all dictionaries & print all anagrams
 GRUS_SEARCH_ALL=1 GRUS_ANAGRAMS=1 grus word
+
+# print path to dictionary
+GRUS_PRINT_PATH=1 grus word
 #+END_SRC
 * Installation
 ** Pre-built binaries

grus.go

@@ -14,7 +14,7 @@ func grus() {
 		os.Exit(1)
 	}
 
-	version := "v0.2.0"
+	version := "v0.2.1"
 
 	if os.Args[1] == "version" {
 		fmt.Printf("Grus %s\n", version)
@@ -52,6 +52,14 @@ func grus() {
 		anagrams = true
 	}
 
+	// Check if user wants to print dictionary path.
+	printPath := false
+	printPathEnv := os.Getenv("GRUS_PRINT_PATH")
+	if printPathEnv == "true" ||
+		printPathEnv == "1" {
+		printPath = true
+	}
+
 	for _, dict := range dicts {
 		if _, err := os.Stat(dict); err != nil &&
 			!os.IsNotExist(err) {
@@ -66,6 +74,11 @@ func grus() {
 			continue
 		}
 
+		// Print path to dictionary if printPath is true.
+		if printPath {
+			fmt.Println(dict)
+		}
+
 		file, err := os.Open(dict)
 		panicOnErr(err)
 		defer file.Close()