Files
cletus-plugins/sdk/cmd/cletus-plugin/new.go
T

116 lines
3.3 KiB
Go

package main
import (
"bytes"
"embed"
"errors"
"flag"
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
"text/template"
"unicode"
"git.eidonix.com/eidonix/cletus-plugins/sdk/manifest"
)
//go:embed all:template
var templateFS embed.FS
const sdkModule = "git.eidonix.com/eidonix/cletus-plugins/sdk"
type templateData struct {
ID, Publisher, Name, Title, Short, Module, SDKModule, SDKVersion string
}
func runNew(args []string) error {
fs := flag.NewFlagSet("new", flag.ContinueOnError)
sdkDir := fs.String("sdk-dir", "", "use a local copy of the SDK (for developing the SDK itself)")
if err := fs.Parse(args); err != nil {
return err
}
if fs.NArg() < 1 || fs.NArg() > 2 {
return errors.New("usage: cletus-plugin new <publisher>.<name> [folder]")
}
id := fs.Arg(0)
probe := manifest.Plugin{ID: id, Name: "x", Description: "x", Version: "0.1.0", MinAppVersion: "0.5.0", HostAPI: manifest.HostAPI}
if errs := probe.Validate(); len(errs) > 0 {
return errs[0]
}
publisher, name, _ := strings.Cut(id, ".")
dir := name
if fs.NArg() == 2 {
dir = fs.Arg(1)
}
if _, err := os.Stat(dir); err == nil {
return fmt.Errorf("%s already exists", dir)
}
data := templateData{ID: id, Publisher: publisher, Name: name, Title: title(name),
Short: strings.ReplaceAll(name, "-", "_"), Module: publisher + ".plugins/" + name,
SDKModule: sdkModule, SDKVersion: sdkVersion}
if err := writeTemplate(dir, data); err != nil {
return err
}
fmt.Printf("Created %s in %s.\n", id, dir)
if *sdkDir != "" {
abs, err := filepath.Abs(*sdkDir)
if err != nil {
return err
}
// Only for developing the SDK: check refuses replace directives.
if out, err := goRun(dir, goEnv("", ""), "mod", "edit", "-replace", sdkModule+"="+abs); err != nil {
return fmt.Errorf("go mod edit: %s", out)
}
}
for _, step := range [][]string{{"mod", "tidy"}, {"mod", "vendor"}} {
if out, err := goRun(dir, goEnv("", ""), step...); err != nil {
return fmt.Errorf("go %s failed. Fix the problem below and run it in %s yourself:\n%s", strings.Join(step, " "), dir, out)
}
}
fmt.Printf("\nNext:\n cd %s\n cletus-plugin check\n cletus-plugin run tools\n cletus-plugin run invoke %s_count_lines '{\"path\":\"sample.txt\"}'\n", dir, data.Short)
return nil
}
func writeTemplate(dir string, data templateData) error {
return fs.WalkDir(templateFS, "template", func(path string, d fs.DirEntry, err error) error {
if err != nil || d.IsDir() {
return err
}
rel := strings.TrimPrefix(path, "template/")
rel = strings.TrimSuffix(rel, ".tmpl")
rel = strings.ReplaceAll(rel, "_dot_", ".")
src, err := templateFS.ReadFile(path)
if err != nil {
return err
}
t, err := template.New(rel).Delims("[[", "]]").Parse(string(src))
if err != nil {
return fmt.Errorf("template %s: %w", rel, err)
}
var out bytes.Buffer
if err := t.Execute(&out, data); err != nil {
return fmt.Errorf("template %s: %w", rel, err)
}
dst := filepath.Join(dir, filepath.FromSlash(rel))
if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
return err
}
return os.WriteFile(dst, out.Bytes(), 0o644)
})
}
func title(name string) string {
words := strings.Split(name, "-")
for i, w := range words {
if w != "" {
r := []rune(w)
r[0] = unicode.ToUpper(r[0])
words[i] = string(r)
}
}
return strings.Join(words, " ")
}