A cmd/server/genblog.go

@@ -0,0 +1,101 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"sort"
+	"strings"
+	"text/template"
+)
+
+type (
+	blogData struct {
+		Date        string
+		Title       string
+		URL         string
+		Text        string
+		Attachments []string
+	}
+)
+
+func generateBlog() {
+	fmt.Println("Generating blog page...")
+	blogDataSlice := generateBlogPage()
+	fmt.Println("Generating blog posts...")
+	generateBlogPosts(blogDataSlice)
+}
+
+func generateBlogPage() []blogData {
+	// open blog dir
+	blogDir, err := os.Open("blog")
+	if err != nil {
+		fmt.Printf("ERROR opening blog dir: %s\n", err)
+	}
+	// read blog dir list
+	postDirList, err := blogDir.Readdirnames(0)
+	if err != nil {
+		fmt.Printf("ERROR reading blog list: %s\n", err)
+	}
+
+	// sort in reverse to show latest post first
+	sort.Sort(sort.Reverse(sort.StringSlice(postDirList)))
+
+	var blogDataSlice []blogData
+	// separate date and title in struct
+	for _, post := range postDirList {
+		fmt.Println(post)
+		blogDataSlice = append(blogDataSlice, blogData{
+			Date:  post[:10],
+			Title: post[11:],
+			URL: "blog/" +
+				strings.ToLower(strings.ReplaceAll(post, " ", "-")),
+		})
+	}
+
+	// template
+	tpl, err := template.ParseFiles("templates/blogposts.gotmpl")
+	if err != nil {
+		fmt.Printf("ERROR creating template: %s\n", err)
+	}
+
+	f, err := os.Create("html/blog.html")
+	if err != nil {
+		fmt.Printf("ERROR creating html: %s\n", err)
+		panic(1)
+	}
+
+	err = tpl.ExecuteTemplate(f, "blogposts.gotmpl", blogDataSlice)
+	if err != nil {
+		fmt.Printf("ERROR executing template: %s\n", err)
+	}
+
+	return blogDataSlice
+}
+
+func generateBlogPosts(blogDataSlice []blogData) {
+	for _, post := range blogDataSlice {
+		content, err := os.ReadFile(
+			"blog/" + post.Date + " " + post.Title + "/post.txt")
+		if err != nil {
+			fmt.Printf("ERROR reading post file: %s\n", err)
+		}
+		post.Text = string(content)
+		post.Text = strings.ReplaceAll(post.Text, "\n", "<br>")
+
+		tpl, err := template.ParseFiles("templates/blogpost.gotmpl")
+		if err != nil {
+			fmt.Printf("ERROR creating template: %s\n", err)
+		}
+
+		f, err := os.Create("html/" + post.URL + ".html")
+		if err != nil {
+			fmt.Printf("ERROR creating html: %s\n", err)
+			panic(1)
+		}
+
+		err = tpl.ExecuteTemplate(f, "blogpost.gotmpl", post)
+		if err != nil {
+			fmt.Printf("ERROR executing template: %s\n", err)
+		}
+	}
+}