template: line numbers for file view
Anirudh Oppiliappan x@icyphox.sh
Tue, 13 Dec 2022 11:50:39 +0530
4 files changed, 41 insertions(+), 1 deletions(-)
M routes/template.go → routes/template.go
@@ -1,10 +1,13 @@ package routes import ( + "bytes" "html/template" + "io" "log" "net/http" "path/filepath" + "strings" "icyphox.sh/legit/git" ) @@ -40,12 +43,42 @@ return } } +func countLines(r io.Reader) (int, error) { + buf := make([]byte, 32*1024) + count := 0 + nl := []byte{'\n'} + + for { + c, err := r.Read(buf) + count += bytes.Count(buf[:c], nl) + + switch { + case err == io.EOF: + return count, nil + case err != nil: + return 0, err + } + } +} + func (d *deps) showFile(content string, data map[string]any, w http.ResponseWriter) { tpath := filepath.Join(d.c.Template.Dir, "*") t := template.Must(template.ParseGlob(tpath)) - // TODO: Process content here. + 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
M templates/file.html → templates/file.html
@@ -9,6 +9,11 @@ </header> <body> {{ template "nav" . }} <main> + <pre> +{{ range .linecount }} +<a id="#L{{ . }}" href="#{{ . }}">{{ . }}</a> +{{- end -}} + </pre> <pre> {{ .content }} </pre>
M templates/head.html → templates/head.html
@@ -2,6 +2,7 @@ {{ define "head" }} <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> + <link rel="stylesheet" href="/static/style.css" type="text/css"> <!-- other meta tags here --> </head> {{ end }}