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serve.go
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serve.go
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package main
import (
"bufio"
"fmt"
"log"
"os"
"os/exec"
"os/signal"
"syscall"
"time"
"github.com/gookit/color"
)
type ServeCmd struct {
ConfigPath string `short:"c"`
Assets string `help:"Assets folder for auto-generated assets. Defaults to ./assets" short:"c"`
stop bool
}
func (r *ServeCmd) Run(ctx *Context) error {
if err := ctx.inflate(""); err != nil {
return err
}
ctx.header()
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
color.Yellow.Printf("Starting file watchers...\n\n")
go r.runTailwind(ctx, &r.stop)
go r.runAir(ctx, &r.stop)
go func() {
time.Sleep(time.Second)
color.Green.Printf("\nPetra watching for changes...\n\n")
}()
go func() {
<-sigs
r.stop = true
}()
defer func() {
if e := recover(); e != nil {
log.Fatalf("%v %+v", color.FgRed.Render("Petra panic:"), e)
}
}()
<-sigs
r.stop = true
// tailwind.Wait()
return nil
}
func (r *ServeCmd) assets(ctx *Context) string {
if r.Assets == "" {
return "./assets/app.css"
}
return r.Assets
}
func (r *ServeCmd) tailwind(ctx *Context) (*exec.Cmd, error) {
cmd := exec.Command("npx", "tailwindcss", "--watch", "--output", r.assets(ctx))
return cmd, nil
}
func (r *ServeCmd) runTailwind(ctx *Context, stop *bool) error {
tailwind, err := r.tailwind(ctx)
if err != nil {
return err
}
tailwindOut, _ := tailwind.StdoutPipe()
tailwind.Stderr = tailwind.Stdout
tailwind.StdinPipe()
tailwind.Start()
scanner := bufio.NewScanner(tailwindOut)
scanner.Split(bufio.ScanLines)
for scanner.Scan() {
if *stop {
fmt.Println("Stopping Air watcher")
break
}
m := scanner.Text()
if m != "" {
fmt.Printf("%v %v\n", color.FgCyan.Render("tailwindcss:"), m)
}
}
if err := tailwind.Wait(); err != nil {
return err
}
fmt.Println("Stopping TailwindCSS watche2ßr")
return nil
}
func (r *ServeCmd) runAir(ctx *Context, stop *bool) error {
air := exec.Command("air")
out, _ := air.StdoutPipe()
air.Stderr = air.Stdout
air.StdinPipe()
air.Start()
scanner := bufio.NewScanner(out)
scanner.Split(bufio.ScanLines)
for scanner.Scan() {
if *stop {
fmt.Println("Stopping Air watcher")
break
}
m := scanner.Text()
if m != "" {
fmt.Printf("%v %v\n", color.FgBlue.Render("air:"), m)
}
}
if err := air.Wait(); err != nil {
return err
}
fmt.Println("Stopping air watche2ßr")
return nil
}