[options] Added method 'Is' for checking argument value

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### 12.49.0
 
+* `[options]` Added method `Is` for checking argument value
 * `[options]` Fix bug with filtering unexpanded globs
 
 ### 12.48.0

options/arguments.go

@@ -135,6 +135,31 @@ func (a Argument) String() string {
 	return string(a)
 }
 
+// Is returns true if argument equals to given value
+func (a Argument) Is(value interface{}) bool {
+	switch t := value.(type) {
+	case string:
+		return a.String() == t
+	case int:
+		v, err := a.Int()
+		return v == t && err == nil
+	case int64:
+		v, err := a.Int64()
+		return v == t && err == nil
+	case uint64:
+		v, err := a.Uint()
+		return v == t && err == nil
+	case float64:
+		v, err := a.Float()
+		return v == t && err == nil
+	case bool:
+		v, err := a.Bool()
+		return v == t && err == nil
+	}
+
+	return false
+}
+
 // Int converts argument to int
 func (a Argument) Int() (int, error) {
 	return strconv.Atoi(string(a))

options/options_test.go

@@ -524,6 +524,21 @@ func (s *OptUtilSuite) TestArgumentsConvertion(c *C) {
 	c.Assert(a.Get(3).String(), Equals, "true")
 	c.Assert(a.Get(4).String(), Equals, "")
 
+	c.Assert(a.Get(0).Is("test"), Equals, true)
+	c.Assert(a.Get(0).Is("abcd"), Equals, false)
+	c.Assert(a.Get(1).Is(6), Equals, true)
+	c.Assert(a.Get(1).Is(12), Equals, false)
+	c.Assert(a.Get(1).Is(int64(6)), Equals, true)
+	c.Assert(a.Get(1).Is(int64(12)), Equals, false)
+	c.Assert(a.Get(1).Is(uint64(6)), Equals, true)
+	c.Assert(a.Get(1).Is(uint64(12)), Equals, false)
+	c.Assert(a.Get(2).Is(2.67), Equals, true)
+	c.Assert(a.Get(2).Is(3.14), Equals, false)
+	c.Assert(a.Get(3).Is(true), Equals, true)
+	c.Assert(a.Get(3).Is(false), Equals, false)
+
+	c.Assert(a.Get(0).Is([]string{}), Equals, false)
+
 	vi, err := a.Get(0).Int()
 	c.Assert(err, NotNil)
 	c.Assert(err, ErrorMatches, `strconv.Atoi: parsing "test": invalid syntax`)