1 files changed, 26 insertions, 5 deletions

diff --git a/vendor/github.com/magiconair/properties/properties.go b/vendor/github.com/magiconair/properties/properties.go
index cb3d1a33..1529e722 100644
--- a/vendor/github.com/magiconair/properties/properties.go
+++ b/vendor/github.com/magiconair/properties/properties.go
@@ -8,11 +8,13 @@ package properties
 // BUG(frank): Write() does not allow to configure the newline character. Therefore, on Windows LF is used.
 
 import (
+	"bytes"
 	"fmt"
 	"io"
 	"log"
 	"os"
 	"regexp"
+	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -69,6 +71,9 @@ type Properties struct {
 
 	// Stores the keys in order of appearance.
 	k []string
+
+	// WriteSeparator specifies the separator of key and value while writing the properties.
+	WriteSeparator string
 }
 
 // NewProperties creates a new Properties struct with the default
@@ -111,7 +116,7 @@ func (p *Properties) Get(key string) (value string, ok bool) {
 	// circular references and malformed expressions
 	// so we panic if we still get an error here.
 	if err != nil {
-		ErrorHandler(fmt.Errorf("%s in %q", err, key+" = "+v))
+		ErrorHandler(err)
 	}
 
 	return expanded, true
@@ -586,6 +591,12 @@ func (p *Properties) String() string {
 	return s
 }
 
+// Sort sorts the properties keys in alphabetical order.
+// This is helpfully before writing the properties.
+func (p *Properties) Sort() {
+	sort.Strings(p.k)
+}
+
 // Write writes all unexpanded 'key = value' pairs to the given writer.
 // Write returns the number of bytes written and any write error encountered.
 func (p *Properties) Write(w io.Writer, enc Encoding) (n int, err error) {
@@ -626,7 +637,7 @@ func (p *Properties) WriteComment(w io.Writer, prefix string, enc Encoding) (n i
 					}
 
 					for _, c := range comments {
-						x, err = fmt.Fprintf(w, "%s%s\n", prefix, encode(c, "", enc))
+						x, err = fmt.Fprintf(w, "%s%s\n", prefix, c)
 						if err != nil {
 							return
 						}
@@ -635,8 +646,11 @@ func (p *Properties) WriteComment(w io.Writer, prefix string, enc Encoding) (n i
 				}
 			}
 		}
-
-		x, err = fmt.Fprintf(w, "%s = %s\n", encode(key, " :", enc), encode(value, "", enc))
+		sep := " = "
+		if p.WriteSeparator != "" {
+			sep = p.WriteSeparator
+		}
+		x, err = fmt.Fprintf(w, "%s%s%s\n", encode(key, " :", enc), sep, encode(value, "", enc))
 		if err != nil {
 			return
 		}
@@ -753,7 +767,12 @@ func expand(s string, keys []string, prefix, postfix string, values map[string]s
 
 		for _, k := range keys {
 			if key == k {
-				return "", fmt.Errorf("circular reference")
+				var b bytes.Buffer
+				b.WriteString("circular reference in:\n")
+				for _, k1 := range keys {
+					fmt.Fprintf(&b, "%s=%s\n", k1, values[k1])
+				}
+				return "", fmt.Errorf(b.String())
 			}
 		}
 
@@ -820,6 +839,8 @@ func escape(r rune, special string) string {
 		return "\\r"
 	case '\t':
 		return "\\t"
+	case '\\':
+		return "\\\\"
 	default:
 		if strings.ContainsRune(special, r) {
 			return "\\" + string(r)