Drop the hashicorp/go-version dependency

README.md

@@ -1,6 +1,10 @@
 # version
 
-A go-language package for managing [k0s](https://github.com/k0sproject/k0s) version numbers. It is based on [hashicorp/go-version](https://github.com/hashicorp/go-version) but adds sorting and comparison capabilities for the k0s version numbering scheme which requires additional sorting by the build tag.
+A go-language package for parsing, comparing, sorting and constraint-checking [k0s](https://github.com/k0sproject/k0s) version numbers. The API is modeled after [hashicorp/go-version](https://github.com/hashicorp/go-version). 
+
+K0s versioning follows [semver](https://semver.org/) v2.0 with the exception that there is a special metadata field for the k0s build version like `v1.23.4+k0s.1` which affects precedence while sorting or comparing version numbers.
+
+The library should work fine for performing the same operations on non-k0s version numbers as long as there are maximum of 3 numeric segments (1.2.3), but this is not a priority.
 
 ## Usage
 
@@ -9,6 +13,7 @@ A go-language package for managing [k0s](https://github.com/k0sproject/k0s) vers
 ```go
 import (
 	"fmt"
+
 	"github.com/k0sproject/version"
 )
 
@@ -29,6 +34,70 @@ a is less than b: true
 a is equal to b: false
 ```
 
+### Constraints
+
+```go
+import (
+	"fmt"
+
+	"github.com/k0sproject/version"
+)
+
+func main() {
+	v := version.MustParse("1.23.3+k0s.1")
+	c := version.MustConstraint("> 1.23")
+    fmt.Printf("constraint %s satisfied by %s: %t\n", c, v, c.Check(v))
+}
+```
+
+Outputs:
+
+```text
+constraint > 1.2.3 satisfied by v1.23.3+k0s.1: true
+```
+
+### Sorting
+
+```go
+import (
+	"fmt"
+    "sort"
+
+	"github.com/k0sproject/version"
+)
+
+func main() {
+    versions := []*version.Version{
+	    version.MustParse("v1.23.3+k0s.2"),
+        version.MustParse("1.23.2+k0s.3"),
+        version.MustParse("1.23.3+k0s.1"),
+    }
+
+    fmt.Println("Before:")
+    for _, v range versions {
+        fmt.Println(v)
+    }
+    sort.Sort(versions)
+    fmt.Println("After:")
+    for _, v range versions {
+        fmt.Println(v)
+    }
+}
+```
+
+Outputs:
+
+```text
+Before:
+v1.23.3+k0s.2
+v1.23.2+k0s.3
+v1.23.3+k0s.1
+After:
+v1.23.2+k0s.3
+v1.23.3+k0s.1
+v1.23.3+k0s.2
+```
+
 ### Check online for latest version
 
 ```go

collection.go

@@ -1,7 +1,6 @@
 package version
 
 import (
-	"encoding/json"
 	"fmt"
 )
 
@@ -32,60 +31,3 @@ func (c Collection) Less(i, j int) bool {
 func (c Collection) Swap(i, j int) {
 	c[i], c[j] = c[j], c[i]
 }
-
-func (c *Collection) marshal() ([]string, error) {
-	strSlice := make([]string, len(*c))
-	for i, v := range *c {
-		s, err := v.MarshalJSON()
-		if err != nil {
-			return nil, err
-		}
-		strSlice[i] = string(s)
-	}
-	return strSlice, nil
-}
-
-func (c *Collection) unmarshal(strSlice []string) error {
-	coll := make(Collection, len(strSlice))
-	for i, s := range strSlice {
-		v, err := NewVersion(s)
-		if err != nil {
-			return err
-		}
-		coll[i] = v
-	}
-	*c = coll
-	return nil
-}
-
-// UnmarshalText implements the json.Marshaler interface.
-func (c *Collection) MarshalJSON() ([]byte, error) {
-	strSlice, err := c.marshal()
-	if err != nil {
-		return nil, err
-	}
-	return json.Marshal(strSlice)
-}
-
-// UnmarshalJSON implements the json.Unmarshaler interface.
-func (c *Collection) UnmarshalJSON(data []byte) error {
-	var strSlice []string
-	if err := json.Unmarshal(data, &strSlice); err != nil {
-		return fmt.Errorf("failed to decode JSON input: %w", err)
-	}
-	return c.unmarshal(strSlice)
-}
-
-// MarshalYAML implements the yaml.Marshaler interface.
-func (c *Collection) MarshalYAML() (interface{}, error) {
-	return c.marshal()
-}
-
-// UnmarshalYAML implements the yaml.Unmarshaler interface.
-func (c *Collection) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	var strSlice []string
-	if err := unmarshal(&strSlice); err != nil {
-		return fmt.Errorf("failed to decode YAML input: %w", err)
-	}
-	return c.unmarshal(strSlice)
-}

collection_test.go

@@ -6,11 +6,12 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestNewCollection(t *testing.T) {
 	c, err := NewCollection("1.23.3+k0s.1", "1.23.4+k0s.1")
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	assert.Equal(t, "v1.23.3+k0s.1", c[0].String())
 	assert.Equal(t, "v1.23.4+k0s.1", c[1].String())
 	assert.Len(t, c, 2)
@@ -20,55 +21,39 @@ func TestNewCollection(t *testing.T) {
 
 func TestSorting(t *testing.T) {
 	c, err := NewCollection(
+		"1.22.3+k0s.0",
 		"1.21.2+k0s.0",
 		"1.21.2-beta.1+k0s.0",
 		"1.21.1+k0s.1",
 		"0.13.1",
 		"v1.21.1+k0s.2",
 	)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	sort.Sort(c)
 	assert.Equal(t, "v0.13.1", c[0].String())
 	assert.Equal(t, "v1.21.1+k0s.1", c[1].String())
 	assert.Equal(t, "v1.21.1+k0s.2", c[2].String())
 	assert.Equal(t, "v1.21.2-beta.1+k0s.0", c[3].String())
 	assert.Equal(t, "v1.21.2+k0s.0", c[4].String())
+	assert.Equal(t, "v1.22.3+k0s.0", c[5].String())
 }
 
 func TestCollectionMarshalling(t *testing.T) {
 	c, err := NewCollection("v1.0.0+k0s.0", "v1.0.1+k0s.0")
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	t.Run("JSON", func(t *testing.T) {
 		jsonData, err := json.Marshal(c)
-		assert.NoError(t, err)
+		require.NoError(t, err)
 		assert.Equal(t, `["v1.0.0+k0s.0","v1.0.1+k0s.0"]`, string(jsonData))
 	})
-
-	t.Run("YAML", func(t *testing.T) {
-		yamlData, err := c.MarshalYAML()
-		assert.NoError(t, err)
-		assert.Equal(t, []string{`"v1.0.0+k0s.0"`, `"v1.0.1+k0s.0"`}, yamlData)
-	})
 }
 
 func TestCollectionUnmarshalling(t *testing.T) {
 	t.Run("JSON", func(t *testing.T) {
 		var c Collection
 		err := json.Unmarshal([]byte(`["v1.0.0+k0s.1","v1.0.1+k0s.1"]`), &c)
-		assert.NoError(t, err)
-		assert.Equal(t, "v1.0.0+k0s.1", c[0].String())
-		assert.Equal(t, "v1.0.1+k0s.1", c[1].String())
-	})
-
-	t.Run("YAML", func(t *testing.T) {
-		var c Collection
-
-		err := c.UnmarshalYAML(func(i interface{}) error {
-			*(i.(*[]string)) = []string{"v1.0.0+k0s.1", "v1.0.1+k0s.1"}
-			return nil
-		})
-		assert.NoError(t, err)
+		require.NoError(t, err)
 		assert.Equal(t, "v1.0.0+k0s.1", c[0].String())
 		assert.Equal(t, "v1.0.1+k0s.1", c[1].String())
 	})
@@ -82,13 +67,4 @@ func TestFailingCollectionUnmarshalling(t *testing.T) {
 		err = json.Unmarshal([]byte(`["invalid_version"]`), &c)
 		assert.Error(t, err)
 	})
-
-	t.Run("YAML", func(t *testing.T) {
-		var c Collection
-		err := c.UnmarshalYAML(func(i interface{}) error {
-			*(i.(*[]string)) = []string{"invalid\n"}
-			return nil
-		})
-		assert.Error(t, err)
-	})
 }

constraint_test.go

@@ -117,9 +117,9 @@ func TestConstraint(t *testing.T) {
 
 			for expected, versions := range tc.truthTable {
 				t.Run(fmt.Sprintf("%t", expected), func(t *testing.T) {
-					for _, version := range versions {
-						t.Run(version, func(t *testing.T) {
-							assert.Equal(t, expected, c.Check(MustParse(version)))
+					for _, v := range versions {
+						t.Run(v, func(t *testing.T) {
+							assert.Equal(t, expected, c.Check(MustParse(v)))
 						})
 					}
 				})
@@ -138,7 +138,7 @@ func TestInvalidConstraint(t *testing.T) {
 	}
 
 	for _, invalidConstraint := range invalidConstraints {
-		_, err := newConstraint(invalidConstraint)
+		_, err := NewConstraint(invalidConstraint)
 		assert.Error(t, err, "Expected error for invalid constraint: "+invalidConstraint)
 	}
 }
@@ -158,4 +158,3 @@ func TestString(t *testing.T) {
 
 	assert.Equal(t, ">= 1.0.0, < 2.0.0", c.String())
 }
-

go.mod

@@ -2,10 +2,7 @@ module github.com/k0sproject/version
 
 go 1.17
 
-require (
-	github.com/hashicorp/go-version v1.6.0
-	github.com/stretchr/testify v1.8.4
-)
+require github.com/stretchr/testify v1.8.4
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect

go.sum

@@ -1,19 +1,10 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
-github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=