Added request to remote repository

main.go

@@ -8,28 +8,43 @@ import (
 )
 
 func main() {
-	source, language, err := handleFlags()
+	source, language, global, err := handleFlags()
 	if err != nil {
 		return
 	}
 
+	// Get command name
 	command := flag.Args()[0]
-	page, err := checkLocal(source, language, command)
+
+	if global == false {
+		// Get page from local folder
+		page, err := checkLocal(source, language, command)
+		if err == nil {
+			fmt.Println("local")
+			fmt.Println(output(page))
+			return
+		}
+	}
+
+	// Try to find page in official repository
+	page, err := checkRemote(language, command)
 	if err == nil {
+		fmt.Println("global")
 		fmt.Println(output(page))
 		return
 	}
 
 	fmt.Printf("`%s` documentation is not available. Consider contributing Pull Request to https://github.com/tldr-pages/tldr\n", command)
 }
 
-func handleFlags() (source, language string, err error) {
+func handleFlags() (source, language string, global bool, err error) {
 	fVersion := flag.Bool("version", false, "show program's version number and exit")
 	fUpdateCache := flag.Bool("update_cache", false, "Update the local cache of pages and exit")
 	fPlatform := flag.String("platform", "linux", "Override the operating system [linux, osx, sunos, windows, common]")
 	fList := flag.Bool("list", false, "List all available commands for operating system")
 	fSource := flag.String("source", getLocalPath(), "Override the default page source")
 	fLanguage := flag.String("language", "en", "Override the default language")
+	fGlobal := flag.Bool("global", false, "Force to get info from official repository")
 	flag.Usage = func() {
 		fmt.Printf("usage: %s [options] command\n\n", os.Args[0])
 		fmt.Println("Go command line client for tldr\n")
@@ -53,6 +68,7 @@ func handleFlags() (source, language string, err error) {
 
 	source = *fSource
 	language = *fLanguage
+	global = *fGlobal
 	if len(flag.Args()) != 1 {
 		flag.Usage()
 		err = errors.New("not enough arguments")

remote.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"errors"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+)
+
+var (
+	RemoteBaseURL = "https://raw.githubusercontent.com/tldr-pages/tldr/master/"
+)
+
+func buildRemotePath(language string) string {
+	folder := "pages"
+	if language != "en" {
+		folder += "." + language
+	}
+	return RemoteBaseURL + folder
+}
+
+func checkCategory(path, category, name string) (page []string, err error) {
+	res, err := http.Get(path + "/" + category + "/" + name + ".md")
+	if err != nil {
+		return
+	}
+	if res.StatusCode == 404 {
+		err = errors.New("file not found")
+		return
+	}
+	data, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+	page = strings.Split(string(data), "\n")
+	return
+}
+
+func checkRemote(language, name string) (page []string, err error) {
+	path := buildRemotePath(language)
+	if page, err = checkCategory(path, "common", name); err == nil {
+		return
+	}
+	if page, err = checkCategory(path, "linux", name); err == nil {
+		return
+	}
+
+	err = errors.New("no required command")
+	return
+}