151 lines
3.5 KiB
Go
151 lines
3.5 KiB
Go
package cmd
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import (
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"fmt"
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"io/fs"
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"os"
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"path/filepath"
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"strings"
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"text/template"
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"github.com/samber/lo"
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"github.com/spf13/cobra"
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"go.ipao.vip/atomctl/v2/pkg/utils/gomod"
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"go.ipao.vip/atomctl/v2/templates"
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)
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// CommandNewProvider 注册 new_provider 命令
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func CommandNewEvent(root *cobra.Command) {
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cmd := &cobra.Command{
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Use: "event",
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Aliases: []string{"e"},
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Short: "创建新的 event publish & subscriber",
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Args: cobra.ExactArgs(1),
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RunE: commandNewEventE,
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}
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cmd.Flags().String("only", "", "仅生成: publisher 或 subscriber")
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root.AddCommand(cmd)
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}
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func commandNewEventE(cmd *cobra.Command, args []string) error {
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snakeName := lo.SnakeCase(args[0])
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camelName := lo.PascalCase(args[0])
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// shared flags
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dryRun, _ := cmd.Flags().GetBool("dry-run")
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baseDir, _ := cmd.Flags().GetString("dir")
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only, _ := cmd.Flags().GetString("only")
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publisherPath := filepath.Join(baseDir, "app/events/publishers")
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subscriberPath := filepath.Join(baseDir, "app/events/subscribers")
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path, err := os.Getwd()
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if err != nil {
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return err
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}
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path, _ = filepath.Abs(path)
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err = gomod.Parse(filepath.Join(path, "go.mod"))
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if err != nil {
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return err
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}
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if dryRun {
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fmt.Printf("[dry-run] mkdir -p %s\n", publisherPath)
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fmt.Printf("[dry-run] mkdir -p %s\n", subscriberPath)
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} else {
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if err := os.MkdirAll(publisherPath, os.ModePerm); err != nil {
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return err
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}
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if err := os.MkdirAll(subscriberPath, os.ModePerm); err != nil {
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return err
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}
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}
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err = fs.WalkDir(templates.Events, "events", func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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return nil
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}
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relPath, err := filepath.Rel("events", path)
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if err != nil {
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return err
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}
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var destPath string
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if relPath == "publisher.go.tpl" {
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if only == "subscriber" {
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return nil
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}
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destPath = filepath.Join(publisherPath, snakeName+".go")
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} else if relPath == "subscriber.go.tpl" {
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if only == "publisher" {
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return nil
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}
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destPath = filepath.Join(subscriberPath, snakeName+".go")
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} else {
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return nil
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}
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tmpl, err := template.ParseFS(templates.Events, path)
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if err != nil {
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return err
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}
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if dryRun {
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fmt.Printf("[dry-run] render > %s\n", destPath)
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return nil
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}
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destFile, err := os.Create(destPath)
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if err != nil {
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return err
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}
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defer destFile.Close()
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return tmpl.Execute(destFile, map[string]string{
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"Name": camelName,
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"ModuleName": gomod.GetModuleName(),
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})
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})
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// 写入或追加 topic 常量，避免重复。
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topicsPath := filepath.Join(baseDir, "app/events/topics.go")
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topicLine := fmt.Sprintf("const Topic%s = %q\n", camelName, snakeName)
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if dryRun {
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fmt.Printf("[dry-run] ensure topics file and add constant > %s\n", topicsPath)
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} else {
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// ensure file exists with basic header
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if _, statErr := os.Stat(topicsPath); os.IsNotExist(statErr) {
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if err := os.MkdirAll(filepath.Dir(topicsPath), os.ModePerm); err != nil {
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return err
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}
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header := "package events\n\n// topics generated by atomctl\n\n"
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if err := os.WriteFile(topicsPath, []byte(header), 0o644); err != nil {
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return err
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}
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}
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// check duplicate
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content, _ := os.ReadFile(topicsPath)
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if !strings.Contains(string(content), "Topic"+camelName+" ") && !strings.Contains(string(content), topicLine) {
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f, err := os.OpenFile(topicsPath, os.O_APPEND|os.O_WRONLY, 0o644)
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if err != nil {
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return err
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}
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defer f.Close()
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if _, err := f.WriteString(topicLine); err != nil {
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return err
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}
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}
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}
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fmt.Printf("event 已创建: %s\n", snakeName)
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return nil
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}
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