Use goreleaser to build and release (#244)

Instead of using gox on one side and an action to release, we can merge
them together with goreleaser which will build for extra targets (arm,
mips if needed in the future) and it also takes care of creating
checksums, a source archive, and a changelog and creating a release with
all the artifacts.

All binaries should respect the old naming convention, so any scripts
out there should still work.

Signed-off-by: Itxaka <igarcia@suse.com>

vendor/github.com/huandu/xstrings/common.go

@@ -3,15 +3,11 @@
 
 package xstrings
 
-import (
-	"bytes"
-)
-
 const bufferMaxInitGrowSize = 2048
 
 // Lazy initialize a buffer.
-func allocBuffer(orig, cur string) *bytes.Buffer {
-	output := &bytes.Buffer{}
+func allocBuffer(orig, cur string) *stringBuilder {
+	output := &stringBuilder{}
 	maxSize := len(orig) * 4
 
 	// Avoid to reserve too much memory at once.

vendor/github.com/huandu/xstrings/convert.go

@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"math/rand"
 	"unicode"
 	"unicode/utf8"
@@ -23,7 +22,7 @@ func ToCamelCase(str string) string {
 		return ""
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	var r0, r1 rune
 	var size int
 
@@ -112,7 +111,7 @@ func camelCaseToLowerCase(str string, connector rune) string {
 		return ""
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	wt, word, remaining := nextWord(str)
 
 	for len(remaining) > 0 {
@@ -374,7 +373,7 @@ func nextValidRune(str string, prev rune) (r rune, size int) {
 	return
 }
 
-func toLower(buf *bytes.Buffer, wt wordType, str string, connector rune) {
+func toLower(buf *stringBuilder, wt wordType, str string, connector rune) {
 	buf.Grow(buf.Len() + len(str))
 
 	if wt != upperCaseWord && wt != connectorWord {
@@ -401,7 +400,7 @@ func SwapCase(str string) string {
 	var r rune
 	var size int
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 
 	for len(str) > 0 {
 		r, size = utf8.DecodeRuneInString(str)
@@ -435,7 +434,7 @@ func FirstRuneToUpper(str string) string {
 		return str
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	buf.WriteRune(unicode.ToUpper(r))
 	buf.WriteString(str[size:])
 	return buf.String()
@@ -453,7 +452,7 @@ func FirstRuneToLower(str string) string {
 		return str
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	buf.WriteRune(unicode.ToLower(r))
 	buf.WriteString(str[size:])
 	return buf.String()
@@ -566,7 +565,7 @@ func Successor(str string) string {
 
 	// Needs to add one character for carry.
 	if i < 0 && carry != ' ' {
-		buf := &bytes.Buffer{}
+		buf := &stringBuilder{}
 		buf.Grow(l + 4) // Reserve enough space for write.
 
 		if lastAlphanumeric != 0 {

vendor/github.com/huandu/xstrings/format.go

@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"unicode/utf8"
 )
 
@@ -28,7 +27,7 @@ func ExpandTabs(str string, tabSize int) string {
 
 	var r rune
 	var i, size, column, expand int
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	orig := str
 
@@ -43,7 +42,7 @@ func ExpandTabs(str string, tabSize int) string {
 			}
 
 			for i = 0; i < expand; i++ {
-				output.WriteByte(byte(' '))
+				output.WriteRune(' ')
 			}
 
 			column += expand
@@ -88,7 +87,7 @@ func LeftJustify(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	output.WriteString(str)
 	writePadString(output, pad, padLen, remains)
@@ -114,7 +113,7 @@ func RightJustify(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	writePadString(output, pad, padLen, remains)
 	output.WriteString(str)
@@ -140,7 +139,7 @@ func Center(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	writePadString(output, pad, padLen, remains/2)
 	output.WriteString(str)
@@ -148,7 +147,7 @@ func Center(str string, length int, pad string) string {
 	return output.String()
 }
 
-func writePadString(output *bytes.Buffer, pad string, padLen, remains int) {
+func writePadString(output *stringBuilder, pad string, padLen, remains int) {
 	var r rune
 	var size int
 

vendor/github.com/huandu/xstrings/manipulate.go

@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"strings"
 	"unicode/utf8"
 )
@@ -131,7 +130,7 @@ func Insert(dst, src string, index int) string {
 // Scrub scrubs invalid utf8 bytes with repl string.
 // Adjacent invalid bytes are replaced only once.
 func Scrub(str, repl string) string {
-	var buf *bytes.Buffer
+	var buf *stringBuilder
 	var r rune
 	var size, pos int
 	var hasError bool
@@ -144,7 +143,7 @@ func Scrub(str, repl string) string {
 		if r == utf8.RuneError {
 			if !hasError {
 				if buf == nil {
-					buf = &bytes.Buffer{}
+					buf = &stringBuilder{}
 				}
 
 				buf.WriteString(origin[:pos])

vendor/github.com/huandu/xstrings/stringbuilder.go

@@ -0,0 +1,7 @@
+//+build go1.10
+
+package xstrings
+
+import "strings"
+
+type stringBuilder = strings.Builder

vendor/github.com/huandu/xstrings/stringbuilder_go110.go

@@ -0,0 +1,9 @@
+//+build !go1.10
+
+package xstrings
+
+import "bytes"
+
+type stringBuilder struct {
+	bytes.Buffer
+}

vendor/github.com/huandu/xstrings/translate.go

@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"unicode"
 	"unicode/utf8"
 )
@@ -152,12 +151,12 @@ func NewTranslator(from, to string) *Translator {
 			continue
 		}
 
-		fromStart, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart, singleRunes)
+		_, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart, singleRunes)
 		fromEnd = utf8.RuneError
 	}
 
 	if fromEnd != utf8.RuneError {
-		singleRunes = tr.addRune(fromEnd, toStart, singleRunes)
+		tr.addRune(fromEnd, toStart, singleRunes)
 	}
 
 	tr.reverted = reverted
@@ -303,7 +302,7 @@ func (tr *Translator) Translate(str string) string {
 
 	orig := str
 
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	for len(str) > 0 {
 		r, size = utf8.DecodeRuneInString(str)
@@ -500,7 +499,7 @@ func Squeeze(str, pattern string) string {
 	var size int
 	var skipSqueeze, matched bool
 	var tr *Translator
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	orig := str
 	last = -1