From d2eff4ae1597776d2f728dcfdb24aaa08e9de2b6 Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Wed, 12 Feb 2025 02:02:17 +0800
Subject: render_readme.go: Render plain READMEs too

---
 render_readme.go | 41 ++++++++++++++++++++++++++++-------------
 1 file changed, 28 insertions(+), 13 deletions(-)

(limited to 'render_readme.go')

diff --git a/render_readme.go b/render_readme.go
index 72e0ec4..32a3a7d 100644
--- a/render_readme.go
+++ b/render_readme.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"html"
 	"html/template"
 
 	"github.com/go-git/go-git/v5/plumbing/object"
@@ -12,20 +13,34 @@ import (
 
 var markdown_converter = goldmark.New(goldmark.WithExtensions(extension.GFM))
 
-func render_readme_at_tree(tree *object.Tree) any {
-	readme_file, err := tree.File("README.md")
-	if err != nil {
-		return ""
-	}
-	readme_file_contents, err := readme_file.Contents()
-	if err != nil {
-		return "Unable to fetch contents of README: " + err.Error()
+func render_readme_at_tree(tree *object.Tree) (readme_filename string, readme_content template.HTML) {
+	var readme_rendered_unsafe bytes.Buffer
+
+	readme_file, err := tree.File("README")
+	if err == nil {
+		readme_file_contents, err := readme_file.Contents()
+		if err != nil {
+			return "Error fetching README", string_escape_html("Unable to fetch contents of README: " + err.Error())
+		}
+		return "README", template.HTML("<pre>" + html.EscapeString(readme_file_contents) + "</pre>")
 	}
 
-	var readme_rendered_unsafe bytes.Buffer
-	err = markdown_converter.Convert([]byte(readme_file_contents), &readme_rendered_unsafe)
-	if err != nil {
-		return "Unable to render README: " + err.Error()
+	readme_file, err = tree.File("README.md")
+	if err == nil {
+		readme_file_contents, err := readme_file.Contents()
+		if err != nil {
+			return "Error fetching README", string_escape_html("Unable to fetch contents of README: " + err.Error())
+		}
+		err = markdown_converter.Convert([]byte(readme_file_contents), &readme_rendered_unsafe)
+		if err != nil {
+			return "Error fetching README", string_escape_html("Unable to render README: " + err.Error())
+		}
+		return "README.md", template.HTML(bluemonday.UGCPolicy().SanitizeBytes(readme_rendered_unsafe.Bytes()))
 	}
-	return template.HTML(bluemonday.UGCPolicy().SanitizeBytes(readme_rendered_unsafe.Bytes()))
+
+	return "", ""
+}
+
+func string_escape_html(s string) template.HTML {
+	return template.HTML(html.EscapeString(s))
 }
-- 
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