Template processar arquivo em Go

template.go

package main

import (
	"bufio"
	"encoding/json"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func fazOQueCeQuicer(){

}

func process(inputs []string, concurrencyLimit int) []bool {

	semaphoreChan := make(chan struct{}, concurrencyLimit)
	resultsChan := make(chan bool)

	defer func() {
		close(semaphoreChan)
		close(resultsChan)
	}()

	for i, line := range inputs {

		go func(i int, line string) {

			semaphoreChan <- struct{}{}

			fazOQueCeQuicer()

			resultsChan <- true

			<-semaphoreChan

		}(i, line)
	}

	var results []bool

	for {
		result := <-resultsChan
		results = append(results, result)

		if len(results) == len(inputs) {
			break
		}
	}

	return results
}

func main() {
	filename := os.Args[1]

	file, err := os.Open(filename)
	if err != nil {
		fmt.Println(fmt.Errorf("%s\n", err))
		os.Exit(-1)
	}
	defer file.Close()

	var inputs []string

	scanner := bufio.NewScanner(file)

	// const maxCapacity = 4096 * 1024
	// buf := make([]byte, maxCapacity)
	// scanner.Buffer(buf, maxCapacity)

	for scanner.Scan() {
		line := scanner.Text()
		inputs = append(inputs, line)
	}

	// if scanner.Err() != nil {
	// 	fmt.Printf(" > Failed with error %v\n", scanner.Err())
	// }

	// fmt.Printf("%d\n", len(inputs))

	concurrency := 100
  
  process(inputs)
}