Merge pull request #203 from ipfs/feat/stringsOption

feat: support strings option over HTTP API

go.sum

+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
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@@ -5,27 +6,23 @@ github.com/crackcomm/go-gitignore v0.0.0-20170627025303-887ab5e44cc3 h1:HVTnpeuv
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@@ -42,23 +39,19 @@ github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJy
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@@ -72,17 +65,19 @@ golang.org/x/sys v0.0.0-20190302025703-b6889370fb10/go.mod h1:STP8DvDyc/dI5b8T5h
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http/client.go

@@ -230,8 +230,18 @@ func getQuery(req *cmds.Request) (string, error) {
 		if OptionSkipMap[k] {
 			continue
 		}
-		str := fmt.Sprintf("%v", v)
-		query.Set(k, str)
+
+		switch val := v.(type) {
+		case []string:
+			for _, o := range val {
+				query.Add(k, o)
+			}
+		case bool, int, int64, uint, uint64, float64, string:
+			str := fmt.Sprintf("%v", v)
+			query.Set(k, str)
+		default:
+			return "", fmt.Errorf("unsupported query parameter type. key: %s, value: %v", k, v)
+		}
 	}
 
 	args := req.Arguments

http/parse.go

@@ -60,17 +60,37 @@ func parseRequest(r *http.Request, root *cmds.Command) (*cmds.Request, error) {
 		return nil, ErrNotFound
 	}
 
-	opts, stringArgs2 := parseOptions(r)
+	opts := make(map[string]interface{})
 	optDefs, err := root.GetOptions(pth)
 	if err != nil {
 		return nil, err
 	}
-	for k, v := range opts {
-		if optDef, ok := optDefs[k]; ok {
+
+	query := r.URL.Query()
+	// Note: len(v) is guaranteed by the above function to always be greater than 0
+	for k, v := range query {
+		if k == "arg" {
+			stringArgs = append(stringArgs, v...)
+		} else {
+			optDef, ok := optDefs[k]
+			if !ok {
+				opts[k] = v[0]
+				continue
+			}
+
 			name := optDef.Names()[0]
-			if k != name {
+			opts[name] = v
+
+			switch optType := optDef.Type(); optType {
+			case cmds.Strings:
 				opts[name] = v
-				delete(opts, k)
+			case cmds.Bool, cmds.Int, cmds.Int64, cmds.Uint, cmds.Uint64, cmds.Float, cmds.String:
+				if len(v) > 1 {
+					return nil, fmt.Errorf("expected key %s to have only a single value, received %v", name, v)
+				}
+				opts[name] = v[0]
+			default:
+				return nil, fmt.Errorf("unsupported option type. key: %s, type: %v", k, optType)
 			}
 		}
 	}
@@ -79,8 +99,6 @@ func parseRequest(r *http.Request, root *cmds.Command) (*cmds.Request, error) {
 		opts[cmds.EncLong] = cmds.JSON
 	}
 
-	stringArgs = append(stringArgs, stringArgs2...)
-
 	// count required argument definitions
 	numRequired := 0
 	for _, argDef := range cmd.Arguments {
@@ -162,23 +180,6 @@ func parseRequest(r *http.Request, root *cmds.Command) (*cmds.Request, error) {
 	return req, err
 }
 
-func parseOptions(r *http.Request) (map[string]interface{}, []string) {
-	opts := make(map[string]interface{})
-	var args []string
-
-	query := r.URL.Query()
-	for k, v := range query {
-		if k == "arg" {
-			args = v
-		} else {
-
-			opts[k] = v[0]
-		}
-	}
-
-	return opts, args
-}
-
 // parseResponse decodes a http.Response to create a cmds.Response
 func parseResponse(httpRes *http.Response, req *cmds.Request) (cmds.Response, error) {
 	res := &Response{

request.go

@@ -118,7 +118,18 @@ func checkAndConvertOptions(root *Command, opts OptMap, path []string) (OptMap,
 
 		kind := reflect.TypeOf(v).Kind()
 		if kind != opt.Type() {
-			if str, ok := v.(string); ok {
+			if opt.Type() == Strings {
+				if _, ok := v.([]string); !ok {
+					return options, fmt.Errorf("option %q should be type %q, but got type %q",
+						k, opt.Type().String(), kind.String())
+				}
+			} else {
+				str, ok := v.(string)
+				if !ok {
+					return options, fmt.Errorf("option %q should be type %q, but got type %q",
+						k, opt.Type().String(), kind.String())
+				}
+
 				val, err := opt.Parse(str)
 				if err != nil {
 					value := fmt.Sprintf("value %q", v)
@@ -129,10 +140,6 @@ func checkAndConvertOptions(root *Command, opts OptMap, path []string) (OptMap,
 						value, opt.Type().String(), "-"+k)
 				}
 				options[k] = val
-
-			} else {
-				return options, fmt.Errorf("option %q should be type %q, but got type %q",
-					k, opt.Type().String(), kind.String())
 			}
 		}