3 files changed, 26 insertions(+), 2 deletions(-)

M files.go
M go.mod
M go.sum

@@ 8,9 8,20 @@ import (
 	"strings"
 
 	gemini "git.tdem.in/tdemin/gmnhg"
+	"github.com/gabriel-vasile/mimetype"
 	"github.com/go-git/go-git/v5"
 )
 
+func isBinary(detectedMIME *mimetype.MIME) bool {
+	for mime := detectedMIME; mime != nil; mime = mime.Parent() {
+		if mime.Is("text/plain") {
+			return false
+		}
+	}
+
+	return true
+}
+
 func createDirectoryIndex(treeRootPath, path string) {
 	files, err := ioutil.ReadDir(filepath.Join(treeRootPath, path))
 	check(err)


@@ 28,7 39,17 @@ func createDirectoryIndex(treeRootPath, path string) {
 			continue
 		}
 
-		index.WriteString("=> " + file.Name() + "\n")
+		filePath := filepath.Join(treeRootPath, path, file.Name())
+		detectedMIME, err := mimetype.DetectFile(filePath)
+		check(err)
+
+		if isBinary(detectedMIME) {
+			index.WriteString("=> " + file.Name() + "\n")
+			continue
+		}
+
+		check(os.Rename(filePath, filePath+".txt"))
+		index.WriteString("=> " + file.Name() + ".txt " + file.Name() + "\n")
 	}
 }
 


@@ 64,7 85,7 @@ func createIndexFile(distPath, repositoryPath string) {
 	indexFile.WriteString("=> " + treeSubPath + "/\n\n")
 
 	// convert README.md to gemini and write it to index.gmi in repository root
-	text, err := os.ReadFile(filepath.Join(distPath, treeSubPath, "README.md"))
+	text, err := os.ReadFile(filepath.Join(distPath, treeSubPath, "README.md.txt"))
 
 	if err != nil {
 		if os.IsNotExist(err) {

@@ 6,5 6,6 @@ go 1.16
 
 require (
 	git.tdem.in/tdemin/gmnhg v0.1.1
+	github.com/gabriel-vasile/mimetype v1.2.0
 	github.com/go-git/go-git/v5 v5.3.1
 )

@@ 18,6 18,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
 github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
+github.com/gabriel-vasile/mimetype v1.2.0 h1:A6z5J8OhjiWFV91sQ3dMI8apYu/tvP9keDaMM3Xu6p4=
+github.com/gabriel-vasile/mimetype v1.2.0/go.mod h1:6CDPel/o/3/s4+bp6kIbsWATq8pmgOisOPG40CJa6To=
 github.com/gliderlabs/ssh v0.2.2 h1:6zsha5zo/TWhRhwqCD3+EarCAgZ2yN28ipRnGPnwkI0=
 github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/go-git/gcfg v1.5.0 h1:Q5ViNfGF8zFgyJWPqYwA7qGFoMTEiBmdlkcfRmpIMa4=