pulumi/pkg/codegen/go/gen_program_utils.go

124 lines
3.8 KiB
Go

// Copyright 2020-2024, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gen
import (
"fmt"
"io"
"strings"
"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
)
type promptToInputArrayHelper struct {
destType string
}
var primitives = map[string]string{
"String": "string",
"Bool": "bool",
"Int": "int",
"Int64": "int64",
"Float64": "float64",
}
func (p *promptToInputArrayHelper) generateHelperMethod(w io.Writer) {
promptType := p.getPromptItemType()
inputType := p.getInputItemType()
fnName := p.getFnName()
fmt.Fprintf(w, "func %s(arr []%s) %s {\n", fnName, promptType, p.destType)
fmt.Fprintf(w, "var pulumiArr %s\n", p.destType)
fmt.Fprintf(w, "for _, v := range arr {\n")
fmt.Fprintf(w, "pulumiArr = append(pulumiArr, %s(v))\n", inputType)
fmt.Fprintf(w, "}\n")
fmt.Fprintf(w, "return pulumiArr\n")
fmt.Fprintf(w, "}\n")
}
func (p *promptToInputArrayHelper) getFnName() string {
parts := strings.Split(p.destType, ".")
contract.Assertf(len(parts) == 2, "promptToInputArrayHelper destType expected to have two parts.")
return fmt.Sprintf("to%s%s", Title(parts[0]), Title(parts[1]))
}
func (p *promptToInputArrayHelper) getPromptItemType() string {
inputType := p.getInputItemType()
parts := strings.Split(inputType, ".")
contract.Assertf(len(parts) == 2, "promptToInputArrayHelper destType expected to have two parts.")
typ := parts[1]
if t, ok := primitives[typ]; ok {
return t
}
return typ
}
func (p *promptToInputArrayHelper) getInputItemType() string {
return strings.TrimSuffix(p.destType, "Array")
}
// Provides code for a method which will be placed in the program preamble if deemed
// necessary. Because many tasks in Go such as reading a file require extensive error
// handling, it is much prettier to encapsulate that error handling boilerplate as its
// own function in the preamble.
func getHelperMethodIfNeeded(functionName string, indent string) (string, bool) {
switch functionName {
case "readFile":
return `func readFileOrPanic(path string) pulumi.StringPtrInput {
data, err := os.ReadFile(path)
if err != nil {
panic(err.Error())
}
return pulumi.String(string(data))
}`, true
case "filebase64":
return `func filebase64OrPanic(path string) string {
if fileData, err := os.ReadFile(path); err == nil {
return base64.StdEncoding.EncodeToString(fileData[:])
} else {
panic(err.Error())
}
}`, true
case "filebase64sha256":
return `func filebase64sha256OrPanic(path string) string {
if fileData, err := os.ReadFile(path); err == nil {
hashedData := sha256.Sum256([]byte(fileData))
return base64.StdEncoding.EncodeToString(hashedData[:])
} else {
panic(err.Error())
}
}`, true
case "sha1":
return `func sha1Hash(input string) string {
hash := sha1.Sum([]byte(input))
return hex.EncodeToString(hash[:])
}`, true
case "notImplemented":
return fmt.Sprintf(`
%sfunc notImplemented(message string) pulumi.AnyOutput {
%s panic(message)
%s}`, indent, indent, indent), true
case "singleOrNone":
return fmt.Sprintf(`%sfunc singleOrNone[T any](elements []T) T {
%s if len(elements) != 1 {
%s panic(fmt.Errorf("singleOrNone expected input slice to have a single element"))
%s }
%s return elements[0]
%s}`, indent, indent, indent, indent, indent, indent), true
default:
return "", false
}
}