Add version, and rm tmpdir

README.md

@@ -1,6 +1,8 @@
 # link2epub [![Go Report Card](https://goreportcard.com/badge/github.com/arnaucube/link2epub)](https://goreportcard.com/report/github.com/arnaucube/link2epub)
 Very simple tool to download articles and convert it to `.epub`/`.mobi` files.
 
+It gets the text content, simplifies its html, downloads the images, and builds the `.epub`/`.mobi` file.
+
 ## Download
 - Binary can be:
 	- downloaded from [releases section](https://github.com/arnaucube/link2epub/releases)
@@ -9,12 +11,18 @@ Very simple tool to download articles and convert it to `.epub`/`.mobi` files.
 ## Usage
 Needs [calibre](https://calibre-ebook.com/) in order to convert to `.epub` and `.mobi`.
 
+Putting the binary in the `~/bin` directory will be more comfortable.
+
 ```bash
-./link2epub -l https://link.com/to-the-article
+link2epub -l https://link.com/to-the-article
 
 // optionally add extension (by default .mobi)
-./link2epub -l https://link.com/to-the-article -type mobi
+link2epub -l https://link.com/to-the-article -type mobi
-./link2epub -l https://link.com/to-the-article -type epub
+link2epub -l https://link.com/to-the-article -type epub
+
+// see help for all the available flags
+link2epub --help
 ```
 
 Thanks to [@dhole](https://github.com/dhole) for the advisment.
+

main.go

@@ -15,21 +15,32 @@ import (
 	readability "github.com/go-shiori/go-readability"
 )
 
-const tmpDir = "tmp"
+const version = "v0_20221002"
+const tmpDir = "link2epubtmpdir"
 
 func main() {
-	// var typeFlag string
+	versionFlag := flag.Bool("v", false, "version")
 	linkFlag := flag.String("l", "", "Link to download")
 	typeFlag := flag.String("type", "mobi", "Type of epub. Available: mobi (default), epub")
+	titleFlag := flag.String("title", "", "Title is automatically getted from article, if want to change it, use this flag")
 
 	flag.Parse()
 
+	fmt.Println("link2epub version:", version)
+	if *versionFlag {
+		os.Exit(0)
+	}
+
 	if *typeFlag != "mobi" && *typeFlag != "epub" {
 		log.Fatal("not valid type")
 	}
 	err := os.Mkdir(tmpDir, os.ModePerm)
 	if err != nil {
-		log.Fatalf("error creating tmp dir %s: %v\n", tmpDir, err)
+		log.Printf("error creating tmp dir %s: %v\nRemoving it and continuing.", tmpDir, err)
+		err = os.RemoveAll(tmpDir)
+		if err != nil {
+			log.Fatalf("err removing %s: %v\n", tmpDir, err)
+		}
 	}
 
 	// get link
@@ -70,6 +81,17 @@ func main() {
 		article.Content = strings.Replace(article.Content, string(img[4]), filename, -1)
 	}
 
+	if *titleFlag != "" {
+		article.Title = *titleFlag
+	}
+
+	// add title to content
+	article.Content = `
+		<h1>` + article.Title + `</h1>
+		<h2 style="text-align:right;">` + article.Byline + `</h2>
+		<br>
+	` + article.Content
+
 	// store html file
 	filename := article.Title + " - " + article.Byline
 	out, err := os.Create(tmpDir + "/" + filename + ".html")