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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 template
import (
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"strings"
"time"
"github.com/Azure/azure-sdk-for-go/eng/tools/generator/flags"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
// Command returns the template command
func Command() *cobra.Command {
templateCmd := &cobra.Command{
Use: "template (<rpName> <packageName>) | <packagePath>",
Short: "Onboards new RP with the template",
Args: cobra.RangeArgs(1, 2),
RunE: func(cmd *cobra.Command, args []string) error {
var rpName, packageName string
if len(args) == 1 {
segments := strings.Split(args[0], "/")
if len(segments) != 2 {
return fmt.Errorf("%s is not a valid package path. Please assign the package path using `rpName/packageName` format", args[0])
}
rpName = segments[0]
packageName = segments[1]
} else {
rpName = args[0]
packageName = args[1]
}
return GeneratePackageByTemplate(rpName, packageName, ParseFlags(cmd.Flags()))
},
}
BindFlags(templateCmd.Flags())
if err := templateCmd.MarkFlagRequired("package-title"); err != nil {
log.Fatal(err)
}
if err := templateCmd.MarkFlagRequired("commit"); err != nil {
log.Fatal(err)
}
return templateCmd
}
// BindFlags binds the flags to this command
func BindFlags(flagSet *pflag.FlagSet) {
flagSet.String("go-sdk-folder", ".", "Specifies the path of root of azure-sdk-for-go")
flagSet.String("template-path", "eng/tools/generator/template/rpName/packageName", "Specifies the path of the template")
flagSet.String("package-title", "", "Specifies the title of this package")
flagSet.String("commit", "", "Specifies the commit hash of azure-rest-api-specs")
flagSet.String("release-date", "", "Specifies the release date in changelog")
flagSet.String("package-config", "", "Additional config for package")
flagSet.String("go-version", "1.18", "Go version")
}
// ParseFlags parses the flags to a Flags struct
func ParseFlags(flagSet *pflag.FlagSet) Flags {
return Flags{
SDKRoot: flags.GetString(flagSet, "go-sdk-folder"),
TemplatePath: flags.GetString(flagSet, "template-path"),
PackageTitle: flags.GetString(flagSet, "package-title"),
Commit: flags.GetString(flagSet, "commit"),
ReleaseDate: flags.GetString(flagSet, "release-date"),
PackageConfig: flags.GetString(flagSet, "package-config"),
GoVersion: flags.GetString(flagSet, "go-version"),
}
}
// Flags ...
type Flags struct {
SDKRoot string
TemplatePath string
PackageTitle string
Commit string
ReleaseDate string
PackageConfig string
GoVersion string
}
// GeneratePackageByTemplate creates a new set of files based on the things in template directory
func GeneratePackageByTemplate(rpName, packageName string, flags Flags) error {
root, err := filepath.Abs(flags.SDKRoot)
if err != nil {
return fmt.Errorf("cannot get the root of azure-sdk-for-go from '%s': %+v", flags.SDKRoot, err)
}
var absTemplateDir string
if filepath.IsAbs(flags.TemplatePath) {
absTemplateDir = flags.TemplatePath
} else {
absTemplateDir = filepath.Join(root, flags.TemplatePath)
}
fileList, err := ioutil.ReadDir(absTemplateDir)
if err != nil {
return fmt.Errorf("cannot read the directory '%s': %+v", absTemplateDir, err)
}
// build the replaceMap
buildReplaceMap(rpName, packageName, flags.PackageConfig, flags.PackageTitle, flags.Commit, flags.ReleaseDate, flags.GoVersion)
// copy everything to destination directory
for _, file := range fileList {
path := filepath.Join(absTemplateDir, file.Name())
content, err := readAndReplace(path)
if err != nil {
return err
}
dirPath := filepath.Join(root, "sdk", "resourcemanager", rpName, packageName)
if err := os.MkdirAll(dirPath, os.ModePerm); err != nil {
return fmt.Errorf("cannot create directory '%s': %+v", dirPath, err)
}
newFilePath := filepath.Join(dirPath, strings.TrimSuffix(file.Name(), FilenameSuffix))
if err := createNewFile(newFilePath, content); err != nil {
return err
}
}
return nil
}
func buildReplaceMap(rpName, packageName, packageConfig, packageTitle, commitID, releaseDate, goVersion string) {
replaceMap = make(map[string]string)
replaceMap[RPNameKey] = rpName
replaceMap[PackageNameKey] = packageName
replaceMap[PackageConfigKey] = packageConfig
replaceMap[PackageTitleKey] = packageTitle
replaceMap[CommitIDKey] = commitID
if releaseDate == "" {
replaceMap[ReleaseDate] = time.Now().Format("2006-01-02")
} else {
replaceMap[ReleaseDate] = releaseDate
}
replaceMap[GoVersion] = goVersion
}
func readAndReplace(path string) (string, error) {
b, err := ioutil.ReadFile(path)
if err != nil {
return "", fmt.Errorf("cannot read from file '%s': %+v", path, err)
}
content := string(b)
for k, v := range replaceMap {
content = strings.ReplaceAll(content, k, v)
}
return content, nil
}
func createNewFile(path, content string) error {
file, err := os.Create(path)
if err != nil {
return fmt.Errorf("cannot create file '%s': %+v", path, err)
}
defer file.Close()
if _, err := file.WriteString(content); err != nil {
return fmt.Errorf("cannot write to file '%s': %+v", path, err)
}
return nil
}
var (
replaceMap map[string]string
)
const (
RPNameKey = "{{rpName}}"
PackageNameKey = "{{packageName}}"
PackageTitleKey = "{{PackageTitle}}"
CommitIDKey = "{{commitID}}"
FilenameSuffix = ".tpl"
ReleaseDate = "{{releaseDate}}"
PackageConfigKey = "{{packageConfig}}"
GoVersion = "{{goVersion}}"
)
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