Update vendor libs

8 files changed, 99 insertions, 21 deletions

diff --git a/vendor/github.com/hashicorp/hcl/README.md b/vendor/github.com/hashicorp/hcl/README.md
index 3d5b8bd..e292d59 100644
--- a/vendor/github.com/hashicorp/hcl/README.md
+++ b/vendor/github.com/hashicorp/hcl/README.md
@@ -81,9 +81,20 @@ FOO
   * Boolean values: `true`, `false`
 
   * Arrays can be made by wrapping it in `[]`. Example:
-    `["foo", "bar", 42]`. Arrays can contain primitives
-    and other arrays, but cannot contain objects. Objects must
-    use the block syntax shown below.
+    `["foo", "bar", 42]`. Arrays can contain primitives,
+    other arrays, and objects. As an alternative, lists
+    of objects can be created with repeated blocks, using
+    this structure:
+
+    ```hcl
+    service {
+        key = "value"
+    }
+
+    service {
+        key = "value"
+    }
+    ```
 
 Objects and nested objects are created using the structure shown below:
 
diff --git a/vendor/github.com/hashicorp/hcl/decoder.go b/vendor/github.com/hashicorp/hcl/decoder.go
index 02888d2..cfddbf3 100644
--- a/vendor/github.com/hashicorp/hcl/decoder.go
+++ b/vendor/github.com/hashicorp/hcl/decoder.go
@@ -517,6 +517,12 @@ func (d *decoder) decodeStruct(name string, node ast.Node, result reflect.Value)
 		structType := structVal.Type()
 		for i := 0; i < structType.NumField(); i++ {
 			fieldType := structType.Field(i)
+			tagParts := strings.Split(fieldType.Tag.Get(tagName), ",")
+
+			// Ignore fields with tag name "-"
+			if tagParts[0] == "-" {
+				continue
+			}
 
 			if fieldType.Anonymous {
 				fieldKind := fieldType.Type.Kind()
@@ -531,7 +537,6 @@ func (d *decoder) decodeStruct(name string, node ast.Node, result reflect.Value)
 				// We have an embedded field. We "squash" the fields down
 				// if specified in the tag.
 				squash := false
-				tagParts := strings.Split(fieldType.Tag.Get(tagName), ",")
 				for _, tag := range tagParts[1:] {
 					if tag == "squash" {
 						squash = true
diff --git a/vendor/github.com/hashicorp/hcl/hcl/ast/ast.go b/vendor/github.com/hashicorp/hcl/hcl/ast/ast.go
index f8bb71a..692ac24 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/ast/ast.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/ast/ast.go
@@ -133,6 +133,12 @@ type ObjectItem struct {
 }
 
 func (o *ObjectItem) Pos() token.Pos {
+	// I'm not entirely sure what causes this, but removing this causes
+	// a test failure. We should investigate at some point.
+	if len(o.Keys) == 0 {
+		return token.Pos{}
+	}
+
 	return o.Keys[0].Pos()
 }
 
diff --git a/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go b/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
index cc129b6..f46ed4c 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/parser/parser.go
@@ -79,6 +79,13 @@ func (p *Parser) objectList() (*ast.ObjectList, error) {
 		}
 
 		node.Add(n)
+
+		// object lists can be optionally comma-delimited e.g. when a list of maps
+		// is being expressed, so a comma is allowed here - it's simply consumed
+		tok := p.scan()
+		if tok.Type != token.COMMA {
+			p.unscan()
+		}
 	}
 	return node, nil
 }
@@ -220,8 +227,19 @@ func (p *Parser) objectKey() ([]*ast.ObjectKey, error) {
 
 			return keys, nil
 		case token.LBRACE:
+			var err error
+
+			// If we have no keys, then it is a syntax error. i.e. {{}} is not
+			// allowed.
+			if len(keys) == 0 {
+				err = &PosError{
+					Pos: p.tok.Pos,
+					Err: fmt.Errorf("expected: IDENT | STRING got: %s", p.tok.Type),
+				}
+			}
+
 			// object
-			return keys, nil
+			return keys, err
 		case token.IDENT, token.STRING:
 			keyCount++
 			keys = append(keys, &ast.ObjectKey{Token: p.tok})
@@ -300,15 +318,20 @@ func (p *Parser) listType() (*ast.ListType, error) {
 	needComma := false
 	for {
 		tok := p.scan()
-		switch tok.Type {
-		case token.NUMBER, token.FLOAT, token.STRING, token.HEREDOC:
-			if needComma {
+		if needComma {
+			switch tok.Type {
+			case token.COMMA, token.RBRACK:
+			default:
 				return nil, &PosError{
 					Pos: tok.Pos,
-					Err: fmt.Errorf("unexpected token: %s. Expecting %s", tok.Type, token.COMMA),
+					Err: fmt.Errorf(
+						"error parsing list, expected comma or list end, got: %s",
+						tok.Type),
 				}
 			}
-
+		}
+		switch tok.Type {
+		case token.NUMBER, token.FLOAT, token.STRING, token.HEREDOC:
 			node, err := p.literalType()
 			if err != nil {
 				return nil, err
@@ -320,7 +343,7 @@ func (p *Parser) listType() (*ast.ListType, error) {
 			// get next list item or we are at the end
 			// do a look-ahead for line comment
 			p.scan()
-			if p.lineComment != nil {
+			if p.lineComment != nil && len(l.List) > 0 {
 				lit, ok := l.List[len(l.List)-1].(*ast.LiteralType)
 				if ok {
 					lit.LineComment = p.lineComment
@@ -332,6 +355,18 @@ func (p *Parser) listType() (*ast.ListType, error) {
 
 			needComma = false
 			continue
+		case token.LBRACE:
+			// Looks like a nested object, so parse it out
+			node, err := p.objectType()
+			if err != nil {
+				return nil, &PosError{
+					Pos: tok.Pos,
+					Err: fmt.Errorf(
+						"error while trying to parse object within list: %s", err),
+				}
+			}
+			l.Add(node)
+			needComma = true
 		case token.BOOL:
 			// TODO(arslan) should we support? not supported by HCL yet
 		case token.LBRACK:
diff --git a/vendor/github.com/hashicorp/hcl/hcl/scanner/scanner.go b/vendor/github.com/hashicorp/hcl/hcl/scanner/scanner.go
index a3f34a7..b204165 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/scanner/scanner.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/scanner/scanner.go
@@ -469,7 +469,7 @@ func (s *Scanner) scanString() {
 		// read character after quote
 		ch := s.next()
 
-		if ch == '\n' || ch < 0 || ch == eof {
+		if ch < 0 || ch == eof {
 			s.err("literal not terminated")
 			return
 		}
@@ -525,16 +525,27 @@ func (s *Scanner) scanEscape() rune {
 // scanDigits scans a rune with the given base for n times. For example an
 // octal notation \184 would yield in scanDigits(ch, 8, 3)
 func (s *Scanner) scanDigits(ch rune, base, n int) rune {
+	start := n
 	for n > 0 && digitVal(ch) < base {
 		ch = s.next()
+		if ch == eof {
+			// If we see an EOF, we halt any more scanning of digits
+			// immediately.
+			break
+		}
+
 		n--
 	}
 	if n > 0 {
 		s.err("illegal char escape")
 	}
 
-	// we scanned all digits, put the last non digit char back
-	s.unread()
+	if n != start {
+		// we scanned all digits, put the last non digit char back,
+		// only if we read anything at all
+		s.unread()
+	}
+
 	return ch
 }
 
diff --git a/vendor/github.com/hashicorp/hcl/hcl/strconv/quote.go b/vendor/github.com/hashicorp/hcl/hcl/strconv/quote.go
index e87ac63..956c899 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/strconv/quote.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/strconv/quote.go
@@ -27,9 +27,6 @@ func Unquote(s string) (t string, err error) {
 	if quote != '"' {
 		return "", ErrSyntax
 	}
-	if contains(s, '\n') {
-		return "", ErrSyntax
-	}
 
 	// Is it trivial?  Avoid allocation.
 	if !contains(s, '\\') && !contains(s, quote) && !contains(s, '$') {
@@ -49,7 +46,7 @@ func Unquote(s string) (t string, err error) {
 	for len(s) > 0 {
 		// If we're starting a '${}' then let it through un-unquoted.
 		// Specifically: we don't unquote any characters within the `${}`
-		// section, except for escaped quotes, which we handle specifically.
+		// section, except for escaped backslashes, which we handle specifically.
 		if s[0] == '$' && len(s) > 1 && s[1] == '{' {
 			buf = append(buf, '$', '{')
 			s = s[2:]
@@ -64,10 +61,12 @@ func Unquote(s string) (t string, err error) {
 
 				s = s[size:]
 
-				// We special case escaped double quotes in interpolations, converting
-				// them to straight double quotes.
+				// We special case escaped backslashes in interpolations, converting
+				// them to their unescaped equivalents.
 				if r == '\\' {
-					if q, _ := utf8.DecodeRuneInString(s); q == '"' {
+					q, _ := utf8.DecodeRuneInString(s)
+					switch q {
+					case '\\':
 						continue
 					}
 				}
diff --git a/vendor/github.com/hashicorp/hcl/hcl/token/token.go b/vendor/github.com/hashicorp/hcl/hcl/token/token.go
index 6e99498..e37c066 100644
--- a/vendor/github.com/hashicorp/hcl/hcl/token/token.go
+++ b/vendor/github.com/hashicorp/hcl/hcl/token/token.go
@@ -152,6 +152,11 @@ func (t Token) Value() interface{} {
 			f = strconv.Unquote
 		}
 
+		// This case occurs if json null is used
+		if t.Text == "" {
+			return ""
+		}
+
 		v, err := f(t.Text)
 		if err != nil {
 			panic(fmt.Sprintf("unquote %s err: %s", t.Text, err))
diff --git a/vendor/github.com/hashicorp/hcl/json/parser/parser.go b/vendor/github.com/hashicorp/hcl/json/parser/parser.go
index 65d56c9..3a62ec3 100644
--- a/vendor/github.com/hashicorp/hcl/json/parser/parser.go
+++ b/vendor/github.com/hashicorp/hcl/json/parser/parser.go
@@ -128,6 +128,12 @@ func (p *Parser) objectKey() ([]*ast.ObjectKey, error) {
 				Token: p.tok.HCLToken(),
 			})
 		case token.COLON:
+			// If we have a zero keycount it means that we never got
+			// an object key, i.e. `{ :`. This is a syntax error.
+			if keyCount == 0 {
+				return nil, fmt.Errorf("expected: STRING got: %s", p.tok.Type)
+			}
+
 			// Done
 			return keys, nil
 		case token.ILLEGAL: