template: simple html filter for repository description (#5242)

* Add markdown renderer function to templates, use it for description in repo template

* Fix function call

* Define function Md2html in template namespace

* Change filter from Md2html to nl2br

* Change filter name to NewLine2br as suggested

* Update description output:

- just replace `\n` by `<br>`
- sanitize html after replace

1 files changed, 6 insertions, 0 deletions

diff --git a/pkg/template/template.go b/pkg/template/template.go
index dd92ba61..f56194b9 100644
--- a/pkg/template/template.go
+++ b/pkg/template/template.go
@@ -65,6 +65,7 @@ func NewFuncMap() []template.FuncMap {
 		"Safe":             Safe,
 		"Sanitize":         bluemonday.UGCPolicy().Sanitize,
 		"Str2html":         Str2html,
+		"NewLine2br":       NewLine2br,
 		"TimeSince":        tool.TimeSince,
 		"RawTimeSince":     tool.RawTimeSince,
 		"FileSize":         tool.FileSize,
@@ -130,6 +131,11 @@ func Str2html(raw string) template.HTML {
 	return template.HTML(markup.Sanitize(raw))
 }
 
+// Simple filter, converts newline symbols to <br>
+func NewLine2br(raw string) template.HTML {
+	return template.HTML(strings.Replace(raw, "\n", "<br>", -1))
+}
+
 func List(l *list.List) chan interface{} {
 	e := l.Front()
 	c := make(chan interface{})