Add support for jsonnet cli arguments --[tla|ext]-[code|str]-file

cmd/tk/flags.go

@@ -77,7 +77,13 @@ func cliCodeParser(fs *pflag.FlagSet) (func() map[string]string, func() map[stri
 	tlaCode := fs.StringArray("tla-code", nil, "Set code value of top level function (Format: key=<code>)")
 	tlaStr := fs.StringArrayP("tla-str", "A", nil, "Set string value of top level function (Format: key=value)")
 
-	newParser := func(kind string, code, str *[]string) func() map[string]string {
+	extCodeFile := fs.StringArray("ext-code-file", nil, "Read code value of extVar from file (Format: key=<file>)")
+	extStrFile := fs.StringArray("ext-str-file", nil, "Read string value of extVar from file (Format: key=<file>)")
+
+	tlaCodeFile := fs.StringArray("tla-code-file", nil, "Read code value of top level function from file (Format: key=<file>)")
+	tlaStrFile := fs.StringArray("tla-str=file", nil, "Read string value of top level function from file (Format: key=<file>)")
+
+	newParser := func(kind string, code, str, codeFile, strFile *[]string) func() map[string]string {
 		return func() map[string]string {
 			m := make(map[string]string)
 			for _, s := range *code {
@@ -95,12 +101,29 @@ func cliCodeParser(fs *pflag.FlagSet) (func() map[string]string, func() map[stri
 				}
 				m[split[0]] = fmt.Sprintf(`"%s"`, split[1])
 			}
+
+			for _, s := range *codeFile {
+				split := strings.SplitN(s, "=", 2)
+				if len(split) != 2 {
+					log.Fatal().Msgf(kind+"-code-file argument has wrong format: `%s`. Expected `key=<file>`", s)
+				}
+				m[split[0]] = fmt.Sprintf("%s @'%s'", "import", strings.Replace(split[1], "'", "''", -1))
+			}
+
+			for _, s := range *strFile {
+				split := strings.SplitN(s, "=", 2)
+				if len(split) != 2 {
+					log.Fatal().Msgf(kind+"-str-file argument has wrong format: `%s`. Expected `key=<file>`", s)
+				}
+				m[split[0]] = fmt.Sprintf("%s @'%s'", "importstr", strings.Replace(split[1], "'", "''", -1))
+			}
+
 			return m
 		}
 	}
 
-	return newParser("ext", extCode, extStr),
-		newParser("tla", tlaCode, tlaStr)
+	return newParser("ext", extCode, extStr, extCodeFile, extStrFile),
+		newParser("tla", tlaCode, tlaStr, tlaCodeFile, tlaStrFile)
 }
 
 func envSettingsFlags(env *v1alpha1.Environment, fs *pflag.FlagSet) {