package routes import ( "bytes" "io" "log" "net/http" "strings" "git.icyphox.sh/legit/git" ) func (d *deps) Write404(w http.ResponseWriter) { w.WriteHeader(404) if err := d.t.ExecuteTemplate(w, "404", nil); err != nil { log.Printf("404 template: %s", err) } } func (d *deps) Write500(w http.ResponseWriter) { w.WriteHeader(500) if err := d.t.ExecuteTemplate(w, "500", nil); err != nil { log.Printf("500 template: %s", err) } } func (d *deps) listFiles(files []git.NiceTree, data map[string]any, w http.ResponseWriter) { data["files"] = files data["meta"] = d.c.Meta if err := d.t.ExecuteTemplate(w, "tree", data); err != nil { log.Println(err) return } } func countLines(r io.Reader) (int, error) { buf := make([]byte, 32*1024) bufLen := 0 count := 0 nl := []byte{'\n'} for { c, err := r.Read(buf) if c > 0 { bufLen += c } count += bytes.Count(buf[:c], nl) switch { case err == io.EOF: /* handle last line not having a newline at the end */ if bufLen >= 1 && buf[(bufLen-1)%(32*1024)] != '\n' { count++ } return count, nil case err != nil: return 0, err } } } func (d *deps) showFile(content string, data map[string]any, w http.ResponseWriter) { lc, err := countLines(strings.NewReader(content)) if err != nil { // Non-fatal, we'll just skip showing line numbers in the template. log.Printf("counting lines: %s", err) } lines := make([]int, lc) if lc > 0 { for i := range lines { lines[i] = i + 1 } } data["linecount"] = lines data["content"] = content data["meta"] = d.c.Meta if err := d.t.ExecuteTemplate(w, "file", data); err != nil { log.Println(err) return } }