Files
threshold/internal/api/genapi/templates.go
T
Jeff MitchellandIrena Rindos 01fb949d0b Add controller-led worker auth flow (#2413)
This adds an action to the API that allows pulling out an activation
token that can be given to a worker in its config (directly or via env
or file). The worker can pass this along with its normal request in
place of its normal nonce and the server will automatically accept it.

Co-authored-by: Irena Rindos <irenarindos@users.noreply.github.com>
2022-09-02 14:32:41 -04:00

869 lines
24 KiB
Go

package main
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sort"
"strings"
"text/template"
"github.com/iancoleman/strcase"
)
func getArgsAndPaths(pluralResource, parentTypeName, action string) (colArg, colPath, resPath string) {
strToReplace := "scope"
if parentTypeName != "" {
strToReplace = parentTypeName
}
colArg = fmt.Sprintf("%sId", strcase.ToLowerCamel(strings.ReplaceAll(strToReplace, "-", "_")))
colPath = pluralResource
// append s at the end only if it isn't already present
if colPath[len(colPath)-1] != 's' {
colPath = fmt.Sprintf("%ss", colPath)
}
if action != "" {
action = fmt.Sprintf(":%s", action)
}
resPath = fmt.Sprintf("fmt.Sprintf(\"%s/%%s%s\", url.PathEscape(id))", colPath, action)
return
}
type templateInput struct {
Name string
Package string
Fields []fieldInfo
PluralResourceName string
CollectionFunctionArg string
ResourceFunctionArg string
CollectionPath string
ResourcePath string
ParentTypeName string
SliceSubtypes map[string]sliceSubtypeInfo
ExtraFields []fieldInfo
VersionEnabled bool
CreateResponseTypes bool
RecursiveListing bool
}
func fillTemplates() {
optionsMap := map[string]map[string]fieldInfo{}
inputMap := map[string]*structInfo{}
for _, in := range inputStructs {
inputMap[in.generatedStructure.pkg] = in
outBuf := new(bytes.Buffer)
input := templateInput{
Name: in.generatedStructure.name,
Package: in.generatedStructure.pkg,
Fields: in.generatedStructure.fields,
PluralResourceName: in.pluralResourceName,
ParentTypeName: in.parentTypeName,
ExtraFields: in.extraFields,
VersionEnabled: in.versionEnabled,
CreateResponseTypes: in.createResponseTypes,
RecursiveListing: in.recursiveListing,
}
if in.packageOverride != "" {
input.Package = in.packageOverride
}
if in.nameOverride != "" {
input.Name = in.nameOverride
}
if len(in.pluralResourceName) > 0 {
input.CollectionFunctionArg, input.CollectionPath, input.ResourcePath = getArgsAndPaths(in.pluralResourceName, in.parentTypeName, "")
}
for _, override := range in.fieldOverrides {
for i, field := range in.generatedStructure.fields {
if field.Name == override.Name {
if override.FieldType != "" {
field.FieldType = override.FieldType
}
in.generatedStructure.fields[i] = field
}
}
}
if err := structTemplate.Execute(outBuf, input); err != nil {
fmt.Printf("error executing struct template for resource %s: %v\n", in.generatedStructure.name, err)
os.Exit(1)
}
if len(in.sliceSubtypes) > 0 {
input.SliceSubtypes = in.sliceSubtypes
in.templates = append(in.templates, sliceSubtypeTemplate)
}
for _, t := range in.templates {
if err := t.Execute(outBuf, input); err != nil {
fmt.Printf("error executing function template for resource %s: %v\n", in.generatedStructure.name, err)
os.Exit(1)
}
}
// We want to generate options per-package, not per-struct, so we
// collate them all here for writing later. The map argument of the
// package map is to prevent duplicates since we may have multiple e.g.
// Name or Description fields.
if !in.skipOptions {
pkgOptionMap := map[string]fieldInfo{}
for _, val := range input.Fields {
if val.GenerateSdkOption {
val.SubtypeNames = append(val.SubtypeNames, in.subtypeName)
pkgOptionMap[val.Name] = val
}
}
optionMap := optionsMap[input.Package]
if optionMap == nil {
optionMap = map[string]fieldInfo{}
}
for name, val := range pkgOptionMap {
val.SubtypeNames = append(val.SubtypeNames, optionMap[name].SubtypeNames...)
optionMap[name] = val
}
optionsMap[input.Package] = optionMap
}
// Add in extra defined fields
if len(in.extraFields) > 0 {
optionMap := optionsMap[input.Package]
if optionMap == nil {
optionMap = map[string]fieldInfo{}
}
for _, val := range in.extraFields {
optionMap[val.Name] = val
}
optionsMap[input.Package] = optionMap
}
// Override some defined options
if len(in.fieldOverrides) > 0 && optionsMap != nil {
for _, override := range in.fieldOverrides {
inOpts := optionsMap[input.Package]
if inOpts != nil {
if override.SkipDefault {
fieldInfo := inOpts[override.Name]
fieldInfo.SkipDefault = true
inOpts[override.Name] = fieldInfo
}
}
}
}
outFile, err := filepath.Abs(fmt.Sprintf("%s/%s", os.Getenv("API_GEN_BASEPATH"), in.outFile))
if err != nil {
fmt.Printf("error opening file %q: %v\n", in.outFile, err)
os.Exit(1)
}
outDir := filepath.Dir(outFile)
if _, err := os.Stat(outDir); os.IsNotExist(err) {
_ = os.Mkdir(outDir, os.ModePerm)
}
if err := ioutil.WriteFile(outFile, outBuf.Bytes(), 0o644); err != nil {
fmt.Printf("error writing file %q: %v\n", outFile, err)
os.Exit(1)
}
}
// Now reconstruct options per package and write them out
for pkg, options := range optionsMap {
outBuf := new(bytes.Buffer)
var fieldNames []string
for _, v := range options {
fieldNames = append(fieldNames, v.Name)
}
sort.Strings(fieldNames)
var fields []fieldInfo
for _, v := range fieldNames {
fields = append(fields, options[v])
}
input := templateInput{
Package: pkg,
Fields: fields,
RecursiveListing: inputMap[pkg].recursiveListing,
}
if err := optionTemplate.Execute(outBuf, input); err != nil {
fmt.Printf("error executing option template for package %s: %v\n", pkg, err)
os.Exit(1)
}
outFile, err := filepath.Abs(fmt.Sprintf("%s/%s/%s", os.Getenv("API_GEN_BASEPATH"), pkg, "option.gen.go"))
if err != nil {
fmt.Printf("error opening file %q: %v\n", "option.gen.go", err)
os.Exit(1)
}
outDir := filepath.Dir(outFile)
if _, err := os.Stat(outDir); os.IsNotExist(err) {
_ = os.Mkdir(outDir, os.ModePerm)
}
if err := ioutil.WriteFile(outFile, outBuf.Bytes(), 0o644); err != nil {
fmt.Printf("error writing file %q: %v\n", outFile, err)
os.Exit(1)
}
}
}
var listTemplate = template.Must(template.New("").Funcs(
template.FuncMap{
"snakeCase": snakeCase,
},
).Parse(`
func (c *Client) List(ctx context.Context, {{ .CollectionFunctionArg }} string, opt... Option) (*{{ .Name }}ListResult, error) {
if {{ .CollectionFunctionArg }} == "" {
return nil, fmt.Errorf("empty {{ .CollectionFunctionArg }} value passed into List request")
}
if c.client == nil {
return nil, fmt.Errorf("nil client")
}
opts, apiOpts := getOpts(opt...)
opts.queryMap["{{ snakeCase .CollectionFunctionArg }}"] = {{ .CollectionFunctionArg }}
req, err := c.client.NewRequest(ctx, "GET", "{{ .CollectionPath }}", nil, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating List request: %w", err)
}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error performing client request during List call: %w", err)
}
target := new({{ .Name }}ListResult)
apiErr, err := resp.Decode(target)
if err != nil {
return nil, fmt.Errorf("error decoding List response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target.response = resp
return target, nil
}
`))
var readTemplate = template.Must(template.New("").Parse(`
func (c *Client) Read(ctx context.Context, id string, opt... Option) (*{{ .Name }}ReadResult, error) {
if id == "" {
return nil, fmt.Errorf("empty id value passed into Read request")
}
if c.client == nil {
return nil, fmt.Errorf("nil client")
}
opts, apiOpts := getOpts(opt...)
req, err := c.client.NewRequest(ctx, "GET", {{ .ResourcePath }}, nil, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating Read request: %w", err)
}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error performing client request during Read call: %w", err)
}
target := new({{ .Name }}ReadResult)
target.Item = new({{ .Name }})
apiErr, err := resp.Decode(target.Item)
if err != nil {
return nil, fmt.Errorf("error decoding Read response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target.response = resp
return target, nil
}
`))
var deleteTemplate = template.Must(template.New("").Parse(`
func (c *Client) Delete(ctx context.Context, id string, opt... Option) (*{{ .Name }}DeleteResult, error) {
if id == "" {
return nil, fmt.Errorf("empty id value passed into Delete request")
}
if c.client == nil {
return nil, fmt.Errorf("nil client")
}
opts, apiOpts := getOpts(opt...)
req, err := c.client.NewRequest(ctx, "DELETE", {{ .ResourcePath }}, nil, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating Delete request: %w", err)
}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error performing client request during Delete call: %w", err)
}
apiErr, err := resp.Decode(nil)
if err != nil {
return nil, fmt.Errorf("error decoding Delete response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target := &{{ .Name }}DeleteResult{
response: resp,
}
return target, nil
}
`))
const createTemplateStr = `
func (c *Client) {{ funcName }} (ctx context.Context, {{ range extraRequiredParams }} {{ .Name }} {{ .Typ }}, {{ end }} {{ .CollectionFunctionArg }} string, opt... Option) (*{{ .Name }}CreateResult, error) {
if {{ .CollectionFunctionArg }} == "" {
return nil, fmt.Errorf("empty {{ .CollectionFunctionArg }} value passed into {{ funcName }} request")
}
opts, apiOpts := getOpts(opt...)
if c.client == nil {
return nil, fmt.Errorf("nil client")
}
{{ range extraRequiredParams }} if {{ .Name }} == "" {
return nil, fmt.Errorf("empty {{ .Name }} value passed into {{ funcName }} request")
} else {
opts.postMap["{{ .PostType }}"] = {{ .Name }}
}{{ end }}
opts.postMap["{{ snakeCase .CollectionFunctionArg }}"] = {{ .CollectionFunctionArg }}
req, err := c.client.NewRequest(ctx, "POST", "{{ .CollectionPath }}{{ apiAction }}", opts.postMap, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating {{ funcName }} request: %w", err)
}
{{ if ( eq .CollectionPath "\"scopes\"" ) }}
opts.queryMap["scope_id"] = scopeId
{{ end }}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error performing client request during {{ funcName }} call: %w", err)
}
target := new({{ .Name }}CreateResult)
target.Item = new({{ .Name }})
apiErr, err := resp.Decode(target.Item)
if err != nil {
return nil, fmt.Errorf("error decoding {{ funcName }} response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target.response = resp
return target, nil
}
`
var commonCreateTemplate = template.Must(template.New("").Funcs(
template.FuncMap{
"snakeCase": snakeCase,
"funcName": func() string {
return "Create"
},
"apiAction": func() string {
return ""
},
"extraRequiredParams": func() []requiredParam {
return nil
},
},
).Parse(createTemplateStr))
var updateTemplate = template.Must(template.New("").Parse(`
func (c *Client) Update(ctx context.Context, id string, version uint32, opt... Option) (*{{ .Name }}UpdateResult, error) {
if id == "" {
return nil, fmt.Errorf("empty id value passed into Update request")
}
if c.client == nil {
return nil, fmt.Errorf("nil client")
}
opts, apiOpts := getOpts(opt...)
{{ if .VersionEnabled }}
if version == 0 {
if !opts.withAutomaticVersioning {
return nil, errors.New("zero version number passed into Update request and automatic versioning not specified")
}
existingTarget, existingErr := c.Read(ctx, id, append([]Option{WithSkipCurlOutput(true)}, opt...)...)
if existingErr != nil {
if api.AsServerError(existingErr) != nil {
return nil, fmt.Errorf("error from controller when performing initial check-and-set read: %w", existingErr)
}
return nil, fmt.Errorf("error performing initial check-and-set read: %w", existingErr)
}
if existingTarget == nil {
return nil, errors.New("nil resource response found when performing initial check-and-set read")
}
if existingTarget.Item == nil {
return nil, errors.New("nil resource found when performing initial check-and-set read")
}
version = existingTarget.Item.Version
}
{{ end }}
opts.postMap["version"] = version
req, err := c.client.NewRequest(ctx, "PATCH", {{ .ResourcePath }}, opts.postMap, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating Update request: %w", err)
}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error performing client request during Update call: %w", err)
}
target := new({{ .Name }}UpdateResult)
target.Item = new({{ .Name }})
apiErr, err := resp.Decode(target.Item)
if err != nil {
return nil, fmt.Errorf("error decoding Update response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target.response = resp
return target, nil
}
`))
var sliceSubtypeTemplate = template.Must(template.New("").Funcs(
template.FuncMap{
"makeSlice": makeSlice,
"snakeCase": snakeCase,
"kebabCase": kebabCase,
"getPathWithAction": getPathWithAction,
},
).Parse(`
{{ $input := . }}
{{ range $index, $op := makeSlice "Add" "Set" "Remove" }}
{{ range $key, $value := $input.SliceSubtypes }}
{{ $fullName := print $op $key }}
{{ $actionName := kebabCase $fullName }}
{{ $resPath := getPathWithAction $input.PluralResourceName $input.ParentTypeName $actionName }}
func (c *Client) {{ $fullName }}(ctx context.Context, id string, version uint32, {{ if ( not ( eq $value.VarName "" ) ) }}{{ $value.VarName }} {{ $value.SliceType }},{{ end }} opt... Option) (*{{ $input.Name }}UpdateResult, error) {
if id == "" {
return nil, fmt.Errorf("empty id value passed into {{ $fullName }} request")
}
{{ if ( not ( eq $op "Set" ) ) }}
{{ if ( not ( eq $value.VarName "" ) ) }}
if len({{ $value.VarName }}) == 0 {
return nil, errors.New("empty {{ $value.VarName }} passed into {{ $fullName }} request")
}
{{ end }}
{{ end }}
if c.client == nil {
return nil, errors.New("nil client")
}
opts, apiOpts := getOpts(opt...)
{{ if $input.VersionEnabled }}
if version == 0 {
if !opts.withAutomaticVersioning {
return nil, errors.New("zero version number passed into {{ $fullName }} request")
}
existingTarget, existingErr := c.Read(ctx, id, append([]Option{WithSkipCurlOutput(true)}, opt...)...)
if existingErr != nil {
if api.AsServerError(existingErr) != nil {
return nil, fmt.Errorf("error from controller when performing initial check-and-set read: %w", existingErr)
}
return nil, fmt.Errorf("error performing initial check-and-set read: %w", existingErr)
}
if existingTarget == nil {
return nil, errors.New("nil resource response found when performing initial check-and-set read")
}
if existingTarget.Item == nil {
return nil, errors.New("nil resource found when performing initial check-and-set read")
}
version = existingTarget.Item.Version
}
{{ end }}
opts.postMap["version"] = version
{{ if ( not ( eq $value.VarName "" ) ) }}
opts.postMap["{{ snakeCase $value.VarName }}"] = {{ $value.VarName }}
{{ end }}
req, err := c.client.NewRequest(ctx, "POST", {{ $resPath }}, opts.postMap, apiOpts...)
if err != nil {
return nil, fmt.Errorf("error creating {{ $fullName }} request: %w", err)
}
if len(opts.queryMap) > 0 {
q := url.Values{}
for k, v := range opts.queryMap {
q.Add(k, v)
}
req.URL.RawQuery = q.Encode()
}
resp, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error performing client request during {{ $fullName }} call: %w", err)
}
target := new({{ $input.Name }}UpdateResult)
target.Item = new({{ $input.Name }})
apiErr, err := resp.Decode(target.Item)
if err != nil {
return nil, fmt.Errorf("error decoding {{ $fullName }} response: %w", err)
}
if apiErr != nil {
return nil, apiErr
}
target.response = resp
return target, nil
}
{{ end }}
{{ end }}
`))
var structTemplate = template.Must(template.New("").Parse(
fmt.Sprint(`// Code generated by "make api"; DO NOT EDIT.
package {{ .Package }}
import (
"context"
"fmt"
"time"
"github.com/kr/pretty"
"github.com/hashicorp/boundary/api"
"github.com/hashicorp/boundary/api/scopes"
)
type {{ .Name }} struct { {{ range .Fields }}
{{ .Name }} {{ .FieldType }} `, "`json:\"{{ .ProtoName }},omitempty\"`", `{{ end }}
{{ if .CreateResponseTypes }}
response *api.Response
{{ else if ( eq .Name "Error" ) }}
response *Response
{{ end }}
}
{{ if .CreateResponseTypes }}
type {{ .Name }}ReadResult struct {
Item *{{ .Name }}
response *api.Response
}
func (n {{ .Name }}ReadResult) GetItem() *{{ .Name }} {
return n.Item
}
func (n {{ .Name }}ReadResult) GetResponse() *api.Response {
return n.response
}
type {{ .Name }}CreateResult = {{ .Name }}ReadResult
type {{ .Name }}UpdateResult = {{ .Name }}ReadResult
type {{ .Name }}DeleteResult struct {
response *api.Response
}
// GetItem will always be nil for {{ .Name }}DeleteResult
func (n {{ .Name }}DeleteResult) GetItem() interface{} {
return nil
}
func (n {{ .Name }}DeleteResult) GetResponse() *api.Response {
return n.response
}
type {{ .Name }}ListResult struct {
Items []*{{ .Name }}
response *api.Response
}
func (n {{ .Name }}ListResult) GetItems() []*{{ .Name }} {
return n.Items
}
func (n {{ .Name }}ListResult) GetResponse() *api.Response {
return n.response
}
{{ end }}
`)))
var clientTemplate = template.Must(template.New("").Parse(`
// Client is a client for this collection
type Client struct {
client *api.Client
}
// Creates a new client for this collection. The submitted API client is cloned;
// modifications to it after generating this client will not have effect. If you
// need to make changes to the underlying API client, use ApiClient() to access
// it.
func NewClient(c *api.Client) *Client {
return &Client{ client: c.Clone() }
}
// ApiClient returns the underlying API client
func (c *Client) ApiClient() *api.Client {
return c.client
}
`))
var optionTemplate = template.Must(template.New("").Funcs(
template.FuncMap{
"makeSlice": makeSlice,
"removeDups": removeDups,
},
).Parse(`
package {{ .Package }}
import (
"strconv"
"github.com/hashicorp/boundary/api"
)
// Option is a func that sets optional attributes for a call. This does not need
// to be used directly, but instead option arguments are built from the
// functions in this package. WithX options set a value to that given in the
// argument; DefaultX options indicate that the value should be set to its
// default. When an API call is made options are processed in ther order they
// appear in the function call, so for a given argument X, a succession of WithX
// or DefaultX calls will result in the last call taking effect.
type Option func(*options)
type options struct {
postMap map[string]interface{}
queryMap map[string]string
withAutomaticVersioning bool
withSkipCurlOutput bool
withFilter string
{{ if .RecursiveListing }} withRecursive bool {{ end }}
}
func getDefaultOptions() options {
return options{
postMap: make(map[string]interface{}),
queryMap: make(map[string]string),
}
}
func getOpts(opt ...Option) (options, []api.Option) {
opts := getDefaultOptions()
for _, o := range opt {
if o != nil {
o(&opts)
}
}
var apiOpts []api.Option
if opts.withSkipCurlOutput {
apiOpts = append(apiOpts, api.WithSkipCurlOutput(true))
}
if opts.withFilter != "" {
opts.queryMap["filter"] = opts.withFilter
}{{ if .RecursiveListing }}
if opts.withRecursive {
opts.queryMap["recursive"] = strconv.FormatBool(opts.withRecursive)
} {{ end }}
return opts, apiOpts
}
// If set, and if the version is zero during an update, the API will perform a
// fetch to get the current version of the resource and populate it during the
// update call. This is convenient but opens up the possibility for subtle
// order-of-modification issues, so use carefully.
func WithAutomaticVersioning(enable bool) Option {
return func(o *options) {
o.withAutomaticVersioning = enable
}
}
// WithSkipCurlOutput tells the API to not use the current call for cURL output.
// Useful for when we need to look up versions.
func WithSkipCurlOutput(skip bool) Option {
return func(o *options) {
o.withSkipCurlOutput = true
}
}
// WithFilter tells the API to filter the items returned using the provided
// filter term. The filter should be in a format supported by
// hashicorp/go-bexpr.
func WithFilter(filter string) Option {
return func(o *options) {
o.withFilter = strings.TrimSpace(filter)
}
}
{{ if .RecursiveListing }}
// WithRecursive tells the API to use recursion for listing operations on this
// resource
func WithRecursive(recurse bool) Option {
return func(o *options) {
o.withRecursive = true
}
}
{{ end }}
{{ range $fieldIndex, $field := .Fields }}
{{ $subtypes := (removeDups $field.SubtypeNames ) }}
{{ if ( eq ( len ( $subtypes ) ) 0 )}}
{{ $subtypes = ( makeSlice "" ) }}
{{ end }}
{{ range $subtypeIndex, $subtypeName := $subtypes }}
func With{{ $subtypeName }}{{ $field.Name }}(in{{ $field.Name }} {{ $field.FieldType }}) Option {
return func(o *options) { {{ if ( not ( eq $subtypeName "" ) ) }}
raw, ok := o.postMap["attributes"]
if !ok {
raw = interface{}(map[string]interface{}{})
}
val := raw.(map[string]interface{})
val["{{ $field.ProtoName }}"] = in{{ $field.Name }}
o.postMap["attributes"] = val
{{ else if $field.Query }}
o.queryMap["{{ $field.ProtoName }}"] = fmt.Sprintf("%v", in{{ $field.Name }})
{{ else }}
o.postMap["{{ $field.ProtoName }}"] = in{{ $field.Name }}
{{ end }} }
}
{{ if ( not $field.SkipDefault ) }}
func Default{{ $subtypeName }}{{ $field.Name }}() Option {
return func(o *options) { {{ if ( not ( eq $subtypeName "" ) ) }}
raw, ok := o.postMap["attributes"]
if !ok {
raw = interface{}(map[string]interface{}{})
}
val := raw.(map[string]interface{})
val["{{ $field.ProtoName }}"] = nil
o.postMap["attributes"] = val
{{ else }}
o.postMap["{{ $field.ProtoName }}"] = nil
{{ end }} }
}
{{ end }}
{{ end }}
{{ end }}
`))
var mapstructureConversionTemplate = template.Must(template.New("").Funcs(
template.FuncMap{
"typeFromSubtype": typeFromSubtype,
"kebabCase": kebabCase,
},
).Parse(`
func AttributesMapTo{{ .Name }}(in map[string]interface{}) (*{{ .Name }}, error) {
if in == nil {
return nil, fmt.Errorf("nil input map")
}
var out {{ .Name }}
dec, err := mapstructure.NewDecoder(&mapstructure.DecoderConfig{
Result: &out,
TagName: "json",
})
if err != nil {
return nil, fmt.Errorf("error creating mapstructure decoder: %w", err)
}
if err := dec.Decode(in); err != nil {
return nil, fmt.Errorf("error decoding: %w", err)
}
return &out, nil
}
func (pt *{{ .ParentTypeName }}) Get{{ .Name }}() (*{{ .Name }}, error) {
if pt.Type != "{{ typeFromSubtype .Name .ParentTypeName "Attributes"}}" {
return nil, fmt.Errorf("asked to fetch %s-type attributes but {{ kebabCase .ParentTypeName }} is of type %s", "{{ typeFromSubtype .Name .ParentTypeName "Attributes"}}", pt.Type)
}
return AttributesMapTo{{ .Name }}(pt.Attributes)
}
`))
func makeSlice(strs ...string) []string {
return strs
}
func snakeCase(in string) string {
return strcase.ToSnake(in)
}
func kebabCase(in string) string {
return strcase.ToKebab(in)
}
func getPathWithAction(plResName, parentTypeName, action string) string {
_, _, resPath := getArgsAndPaths(plResName, parentTypeName, action)
return resPath
}
func removeDups(in []string) []string {
if in == nil {
return nil
}
if len(in) == 0 {
return []string{}
}
vals := make(map[string]struct{}, len(in))
for _, val := range in {
vals[val] = struct{}{}
}
ret := make([]string, 0, len(vals))
for val := range vals {
ret = append(ret, val)
}
sort.Strings(ret)
return ret
}
func typeFromSubtype(in, parent, extraSuffix string) string {
return strings.ToLower(strings.TrimSuffix(strings.TrimSuffix(in, extraSuffix), parent))
}