Merge pull request #97 from dreddsa5dies/develop

Develop

projects/26_getFileInfo/main.go

@@ -4,31 +4,48 @@ import (
 	"fmt"
 	"log"
 	"os"
-)
-
-var (
-	fileInfo os.FileInfo
-	err      error
+	"path/filepath"
 )
 
 func main() {
-	if len(os.Args) == 1 {
-		fmt.Fprintf(os.Stdout, "Using: %s file\n", os.Args[0])
+	if len(os.Args) < 2 {
+		fmt.Fprintf(os.Stderr, "Usage: %s [-r] <file_or_directory>\n", os.Args[0])
 		os.Exit(1)
 	}
 
-	fileInfo, err = os.Stat(os.Args[1])
-	if err != nil {
-		if os.IsNotExist(err) {
-			log.Fatal("File does not exist.")
+	path := os.Args[len(os.Args)-1]
+	recursive := false
+	if len(os.Args) == 3 && os.Args[1] == "-r" {
+		recursive = true
+	}
+
+	if recursive {
+		err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
+			if err != nil {
+				fmt.Println(err)
+				return nil
+			}
+			printOut(info)
+			return nil
+		})
+		if err != nil {
+			log.Fatal(err)
+		}
+	} else {
+		fileInfo, err := os.Stat(path)
+		if err != nil {
+			log.Fatal(err)
 		}
+		printOut(fileInfo)
 	}
+}
 
-	fmt.Println("File name:", fileInfo.Name())
-	fmt.Println("Size in bytes:", fileInfo.Size())
-	fmt.Println("Permissions:", fileInfo.Mode())
-	fmt.Println("Last modified:", fileInfo.ModTime())
-	fmt.Println("Is Directory: ", fileInfo.IsDir())
-	fmt.Printf("System interface type: %T\n", fileInfo.Sys())
-	fmt.Printf("System info: %+v\n\n", fileInfo.Sys())
+func printOut(info os.FileInfo) {
+	fmt.Println("File name:", info.Name())
+	fmt.Println("Size in bytes:", info.Size())
+	fmt.Println("Permissions:", info.Mode())
+	fmt.Println("Last modified:", info.ModTime())
+	fmt.Println("Is Directory: ", info.IsDir())
+	fmt.Printf("System interface type: %T\n", info.Sys())
+	fmt.Printf("System info: %+v\n\n", info.Sys())
 }

projects/52_findAltSites/main.go

@@ -3,13 +3,15 @@
 package main
 
 import (
+	"context"
 	"crypto/md5" //nolint:gosec // it's need
 	"fmt"
 	"io"
 	"log"
 	"net/http"
 	"net/url"
 	"os"
+	"time"
 )
 
 func main() {
@@ -37,11 +39,16 @@ func main() {
 	}
 
 	// save requests from user-agents
-	resultReq := make(map[string]string)
+	resultReq := make(map[string]string, len(userAgents))
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
 
 	// iterate
 	for k, v := range userAgents {
-		resultReq[k] = doReq(inputURL, v)
+		ctxReq, cancelReq := context.WithDeadline(ctx, time.Now().Add(5*time.Second))
+		resultReq[k] = doReqCtx(ctxReq, inputURL, v)
+		cancelReq()
 	}
 
 	// 	The next part of the code creates an md5s array and then iterates through the responses,
@@ -69,11 +76,11 @@ func main() {
 	os.Exit(0)
 }
 
-// doReq - get body request
-func doReq(inputURL, userAgent string) string {
+// doReqCtx - get body request
+func doReqCtx(ctx context.Context, inputURL, userAgent string) string {
 	client := &http.Client{}
 
-	req, err := http.NewRequest("GET", inputURL, http.NoBody)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, inputURL, http.NoBody)
 	if err != nil {
 		log.Fatalln(err)
 	}