git: check for binary files

git/diff.go

@@ -20,6 +20,7 @@ type Diff struct {
 		New string
 	}
 	TextFragments []TextFragment
+	IsBinary      bool
 }
 
 // A nicer git diff representation.
@@ -88,6 +89,7 @@ func (g *GitRepo) Diff() (*NiceDiff, error) {
 		ndiff := Diff{}
 		ndiff.Name.New = d.NewName
 		ndiff.Name.Old = d.OldName
+		ndiff.IsBinary = d.IsBinary
 
 		for _, tf := range d.TextFragments {
 			ndiff.TextFragments = append(ndiff.TextFragments, TextFragment{

git/git.go

@@ -76,7 +76,13 @@ func (g *GitRepo) FileContent(path string) (string, error) {
 		return "", err
 	}
 
-	return file.Contents()
+	isbin, _ := file.IsBinary()
+
+	if !isbin {
+		return file.Contents()
+	} else {
+		return "Not displaying binary file", nil
+	}
 }
 
 func (g *GitRepo) Tags() ([]*object.Tag, error) {

templates/commit.html

@@ -55,7 +55,9 @@
           <a href="/{{ $repo }}/blob/{{ $this }}/{{ .Name.New }}">{{ .Name.New }}</a>
           {{- end -}}
           </div>
-
+          {{ if .IsBinary }}
+          <p>Not showing binary file.</p>
+          {{ else }}
             <pre>
             {{- range .TextFragments -}}
             <p>{{- .Header -}}</p>
@@ -71,6 +73,7 @@
               {{- end -}}
             {{- end -}}
             {{- end -}}
+          {{- end -}}
             </pre>
           </div>
         {{ end }}