first commit

.drone.yml

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+kind: pipeline
+name: default
+
+steps:
+- name: test 
+  image: golang
+  commands:
+  - go test 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.39
+  commands:
+  - golangci-lint run

.gitignore

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+# ---> Go
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+

.golangci.yml

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+linters-settings:
+    dupl:
+      threshold: 100
+    funlen:
+      lines: 100
+      statements: 50
+    goconst:
+      min-len: 2
+      min-occurrences: 2
+    gocyclo:
+      min-complexity: 15
+    golint:
+      min-confidence: 0
+    govet:
+      check-shadowing: true
+    lll:
+      line-length: 140
+    maligned:
+      suggest-new: true
+    misspell:
+      locale: US  
+
+linters:
+    enable-all: true
+
+issues:
+  # Excluding configuration per-path, per-linter, per-text and per-source
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - gomnd

LICENSE

@@ -0,0 +1,19 @@
+MIT License Copyright (c) 2020 4devs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,5 @@
+# encoding
+
+[![Build Status](https://drone.gitoa.ru/api/badges/go-4devs/encoding/status.svg)](https://drone.gitoa.ru/go-4devs/encoding)
+[![Go Report Card](https://goreportcard.com/badge/gitoa.ru/go-4devs/encoding)](https://goreportcard.com/report/gitoa.ru/go-4devs/encoding)
+[![GoDoc](https://godoc.org/gitoa.ru/go-4devs/encoding?status.svg)](http://godoc.org/gitoa.ru/go-4devs/encoding)

encoding.go

@@ -0,0 +1,11 @@
+package encoding
+
+import (
+	"io"
+)
+
+// Encode writer from volume.
+type Encode func(w io.Writer, v interface{}) error
+
+// Decode reader to volume.
+type Decode func(r io.Reader, v interface{}) error

go.mod

@@ -0,0 +1,9 @@
+module gitoa.ru/go-4devs/encoding
+
+go 1.16
+
+require (
+	github.com/BurntSushi/toml v0.3.1
+	github.com/stretchr/testify v1.7.0
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+)

go.sum

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+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+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/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+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 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

gob/encoding.go

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+package gob
+
+import (
+	"encoding/gob"
+	"io"
+
+	"gitoa.ru/go-4devs/encoding"
+)
+
+var _ encoding.Decode = Decode
+var _ encoding.Encode = Encode
+
+func Decode(r io.Reader, v interface{}) error {
+	return gob.NewDecoder(r).Decode(v)
+}
+
+func Encode(w io.Writer, v interface{}) error {
+	return gob.NewEncoder(w).Encode(v)
+}

gob/unmarshal.go

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+package gob
+
+import (
+	"bytes"
+	"encoding/gob"
+
+	"gitoa.ru/go-4devs/encoding"
+)
+
+var _ encoding.Unmarshal = Unmarshal
+var _ encoding.Marshal = Marshal
+
+// Unmarshal by gob decoder.
+func Unmarshal(data []byte, v interface{}) error {
+	buf := bytes.NewBuffer(data)
+
+	return gob.NewDecoder(buf).Decode(v)
+}
+
+// Marshal by gob encoder.
+func Marshal(v interface{}) ([]byte, error) {
+	var data bytes.Buffer
+	if err := gob.NewEncoder(&data).Encode(v); err != nil {
+		return nil, err
+	}
+
+	return data.Bytes(), nil
+}

json/encoding.go

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+package json
+
+import (
+	"encoding/json"
+	"io"
+
+	"gitoa.ru/go-4devs/encoding"
+)
+
+var _ encoding.Decode = Decode
+var _ encoding.Encode = Encode
+
+func Decode(r io.Reader, v interface{}) error {
+	return json.NewDecoder(r).Decode(v)
+}
+
+func Encode(w io.Writer, v interface{}) error {
+	return json.NewEncoder(w).Encode(v)
+}

test/decode_suite.go

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+package test
+
+import (
+	"bytes"
+	"io"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+	"gitoa.ru/go-4devs/encoding"
+)
+
+type Data struct {
+	String string
+	Time   time.Time
+	Struct SData
+}
+type SData struct {
+	ID int64
+}
+
+func expected() Data {
+	return Data{
+		String: "string data",
+		Time:   time.Date(2020, time.May, 24, 9, 15, 0, 0, time.UTC),
+		Struct: SData{ID: 42},
+	}
+}
+
+type DecodeSuite struct {
+	suite.Suite
+	decode encoding.Decode
+	data   io.Reader
+}
+
+// RunSute run test by provider.
+func RunDecode(t *testing.T, decode encoding.Decode, data string) {
+	cs := DecodeSuite{
+		decode: decode,
+		data:   bytes.NewBufferString(data),
+	}
+
+	suite.Run(t, &cs)
+}
+func (ds *DecodeSuite) TestDecode() {
+	var d Data
+
+	require.Nil(ds.T(), ds.decode(ds.data, &d))
+	require.Equal(ds.T(), expected(), d)
+}

toml/encoding.go

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+package toml
+
+import (
+	"io"
+
+	"github.com/BurntSushi/toml"
+	"gitoa.ru/go-4devs/encoding"
+)
+
+var _ encoding.Decode = Decode
+var _ encoding.Encode = Encode
+
+// Decode from reader to value.
+func Decode(r io.Reader, v interface{}) error {
+	_, err := toml.DecodeReader(r, v)
+	return err
+}
+
+// Encode from value to writer.
+func Encode(w io.Writer, v interface{}) error {
+	return toml.NewEncoder(w).Encode(v)
+}

toml/encoding_test.go

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+package toml_test
+
+import (
+	"testing"
+
+	"gitoa.ru/go-4devs/encoding/test"
+	"gitoa.ru/go-4devs/encoding/toml"
+)
+
+const data = `
+string = "string data"
+time = 2020-05-24T09:15:00Z
+[struct]
+id = 42
+`
+
+func TestDecode(t *testing.T) {
+	test.RunDecode(t, toml.Decode, data)
+}

unmarshal.go

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+package encoding
+
+// Unmarshal bytes to inteface.
+type Unmarshal func(data []byte, v interface{}) error
+
+// Marshal interface to bytes.
+type Marshal func(v interface{}) ([]byte, error)

xml/encoding.go

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+package json
+
+import (
+	"encoding/xml"
+	"io"
+
+	"gitoa.ru/go-4devs/encoding"
+)
+
+var _ encoding.Decode = Decode
+var _ encoding.Encode = Encode
+
+// Decode from xml.
+func Decode(r io.Reader, v interface{}) error {
+	return xml.NewDecoder(r).Decode(v)
+}
+
+// Encode to xml.
+func Encode(w io.Writer, v interface{}) error {
+	return xml.NewEncoder(w).Encode(v)
+}

yaml/encoding.go

@@ -0,0 +1,24 @@
+package yaml
+
+import (
+	"io"
+
+	"gitoa.ru/go-4devs/encoding"
+	"gopkg.in/yaml.v3"
+)
+
+var _ encoding.Decode = Decode
+var _ encoding.Encode = Encode
+
+// Decode from reader to value.
+func Decode(r io.Reader, v interface{}) error {
+	return yaml.NewDecoder(r).Decode(v)
+}
+
+// Encode from value to writer.
+func Encode(w io.Writer, v interface{}) error {
+	enc := yaml.NewEncoder(w)
+	defer enc.Close()
+
+	return enc.Encode(v)
+}

yaml/encoding_test.go

@@ -0,0 +1,19 @@
+package yaml_test
+
+import (
+	"testing"
+
+	"gitoa.ru/go-4devs/encoding/test"
+	"gitoa.ru/go-4devs/encoding/yaml"
+)
+
+const data = `
+string: "string data"
+time: 2020-05-24T09:15:00Z
+struct:
+    id: 42
+`
+
+func TestDecode(t *testing.T) {
+	test.RunDecode(t, yaml.Decode, data)
+}