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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
package model
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"reflect"
"strings"
)
// Options ...
type Options interface {
// Arguments returns the argument defined in this options
Arguments() []Option
// CodeGeneratorVersion returns the code generator version defined in this options
CodeGeneratorVersion() string
// MergeOptions merges the current options with the given options
MergeOptions(other ...Option) Options
}
// MergeOptions will merge the given options and new option slice, and return a new Options instance
func MergeOptions(options Options, other ...Option) Options {
arguments := options.Arguments()
for _, no := range other {
i := indexOfOptions(arguments, no)
if i >= 0 {
arguments[i] = no
} else {
arguments = append(arguments, no)
}
}
return localOptions(arguments)
}
type localOptions []Option
// ParseOptions returns an Options instance by parsing the given raw option strings
func ParseOptions(raw []string) (Options, error) {
var options []Option
for _, r := range raw {
o, err := NewOption(r)
if err != nil {
return nil, err
}
options = append(options, o)
}
return NewOptions(options...), nil
}
// NewOptions returns a new instance of Options with the give slice of Option
func NewOptions(options ...Option) Options {
return localOptions(options)
}
// Arguments ...
func (o localOptions) Arguments() []Option {
return o
}
// CodeGeneratorVersion ...
func (o localOptions) CodeGeneratorVersion() string {
for _, argument := range o.Arguments() {
if v, ok := argument.(KeyValueOption); ok {
if v.Key() == "use" {
return v.Value()
}
}
}
return ""
}
// MergeOptions ...
func (o localOptions) MergeOptions(other ...Option) Options {
return MergeOptions(o, other...)
}
// String ...
func (o localOptions) String() string {
b, _ := json.MarshalIndent(o, "", " ")
return string(b)
}
func indexOfOptions(options []Option, option Option) int {
for i, o := range options {
if matchOption(o, option) {
return i
}
}
return -1
}
func matchOption(left, right Option) bool {
if left.Type() == Argument && right.Type() == Argument {
// we always identify arguments as different entities, even they have the same content.
return false
}
// we identity flags and key value options as map keys therefore they are unique
return getKey(left) == getKey(right)
}
func getKey(o Option) string {
switch n := o.(type) {
case FlagOption:
return n.Flag()
case KeyValueOption:
return n.Key()
case ArgumentOption:
return ""
default:
panic(fmt.Sprintf("unknown type of option %v", reflect.TypeOf(o)))
}
}
type RawOptions struct {
AutorestArguments []string `json:"autorestArguments,omitempty"`
}
func NewRawOptionsFrom(reader io.Reader) (*RawOptions, error) {
b, err := ioutil.ReadAll(reader)
if err != nil {
return nil, err
}
var result RawOptions
if err := json.Unmarshal(b, &result); err != nil {
return nil, err
}
return &result, nil
}
func (r RawOptions) Parse(absSDK string) (Options, error) {
// replace go-sdk-folder value by the absolute path
var argument []Option
for _, v := range r.AutorestArguments {
if strings.HasPrefix(v, "--go-sdk-folder") {
continue
}
if v == "--multiapi" {
continue
}
o, err := NewOption(v)
if err != nil {
return nil, err
}
argument = append(argument, o)
}
argument = append(argument, NewKeyValueOption("go-sdk-folder", absSDK))
o := NewOptions(argument...)
return o, nil
}
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