generate posts with data

mna · Jul 10, 2013 · 08a91f5 · 08a91f5
1 parent a558b46
commit 08a91f5
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Showing 7 changed files with 145 additions and 17 deletions.
diff --git a/main.go b/main.go
@@ -12,7 +12,8 @@ import (
 )
 
 var (
-	postTpl *template.Template
+	postTpl   *template.Template
+	postTplNm = "post.amber"
 )
 
 func main() {
@@ -40,13 +41,14 @@ func main() {
 }
 
 func compileTemplate() {
-	ap := filepath.Join(TemplatesDir, "post.amber")
+	ap := filepath.Join(TemplatesDir, postTplNm)
 	if _, err := os.Stat(ap); os.IsNotExist(err) {
 		// Amber post template does not exist, compile the native Go templates
 		postTpl, err = template.ParseGlob(filepath.Join(TemplatesDir, "*.html"))
 		if err != nil {
 			log.Fatal("FATAL ", err)
 		}
+		postTplNm = "post" // TODO : Validate this...
 	} else {
 		c := amber.New()
 		if err := c.ParseFile(ap); err != nil {

diff --git a/public/test1 b/public/test1
@@ -0,0 +1,17 @@
+<!DOCTYPE html><!-- From HTML5 Boilerplate -->
+<html class="no-js">
+	<head>
+		<meta charset="utf-8" />
+		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+		<title>test1</title>
+		<meta name="description" content="description" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		<link rel="stylesheet" href="/public/css/normalize.css" />
+		<link rel="stylesheet" href="/public/css/main.css" />
+	</head>
+	<body>
+
+		<h1>test1</h1>
+		<div>[60 104 49 62 84 104 105 115 32 105 115 32 109 121 32 102 105 114 115 116 32 112 111 115 116 33 60 47 104 49 62 10 10 60 112 62 73 38 114 115 113 117 111 59 109 32 115 111 32 104 97 112 112 121 32 116 111 32 119 114 105 116 101 32 116 104 105 115 32 114 105 103 104 116 32 110 111 119 33 60 47 112 62 10]</div>
+	</body>
+</html>
diff --git a/public/test2 b/public/test2
@@ -0,0 +1,17 @@
+<!DOCTYPE html><!-- From HTML5 Boilerplate -->
+<html class="no-js">
+	<head>
+		<meta charset="utf-8" />
+		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+		<title>test2</title>
+		<meta name="description" content="description" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		<link rel="stylesheet" href="/public/css/normalize.css" />
+		<link rel="stylesheet" href="/public/css/main.css" />
+	</head>
+	<body>
+
+		<h1>test2</h1>
+		<div>[60 104 49 62 84 101 115 116 32 50 33 60 47 104 49 62 10]</div>
+	</body>
+</html>
diff --git a/public/test3 b/public/test3
@@ -0,0 +1,17 @@
+<!DOCTYPE html><!-- From HTML5 Boilerplate -->
+<html class="no-js">
+	<head>
+		<meta charset="utf-8" />
+		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+		<title>test3</title>
+		<meta name="description" content="description" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		<link rel="stylesheet" href="/public/css/normalize.css" />
+		<link rel="stylesheet" href="/public/css/main.css" />
+	</head>
+	<body>
+
+		<h1>test3</h1>
+		<div>[60 104 49 62 84 101 115 116 32 51 33 60 47 104 49 62 10]</div>
+	</body>
+</html>
diff --git a/templates/layout.amber b/templates/layout.amber
@@ -4,8 +4,8 @@ html.no-js
 	head
 		meta[charset="utf-8"]
 		meta[http-equiv="X-UA-Compatible"][content="IE=edge"]
-		title ${Title}
-		meta[name="description"][content=Description]
+		title #{Post.ShortPost.Title}
+		meta[name="description"][content=Post.ShortPost.Description]
 		meta[name="viewport"][content="width=device-width, initial-scale=1"]
 		link[rel="stylesheet"][href="/public/css/normalize.css"]
 		link[rel="stylesheet"][href="/public/css/main.css"]

diff --git a/templates/post.amber b/templates/post.amber
@@ -1,4 +1,5 @@
 extends layout
 
 block content
-	h1 My Post!
+	h1 #{Post.ShortPost.Title}
+	div #{Post.Content}
diff --git a/watch.go b/watch.go
@@ -10,13 +10,15 @@ import (
 	"time"
 
 	"github.com/howeyc/fsnotify"
+	"github.com/russross/blackfriday"
 )
 
 const (
 	// Sometimes many events can be triggered in succession for the same file
 	// (i.e. Create followed by Modify, etc.). No need to rush to generate
 	// the HTML, just wait for it to calm down before processing.
 	watchEventDelay = 30 * time.Second
+	maxRecentPosts  = 2
 )
 
 // Receive watcher events for the posts directory. All events require re-generating
@@ -68,9 +70,87 @@ func regeneratePosts() {
 	sfi := sortableFileInfo(fis)
 	sfi = FilterDir(sfi)
 	sort.Sort(sfi)
-	for _, fi := range sfi {
-		regenerateFile(fi)
+
+	recent := make([]*ShortPost, maxRecentPosts)
+	all := make([]*LongPost, len(sfi))
+	// First pass to get the recent posts (and others) so that
+	// they can be passed to all posts.
+	for i, fi := range sfi {
+		all[i] = newLongPost(fi)
+		if i < maxRecentPosts {
+			recent[i] = all[i].Short()
+		}
+	}
+
+	for i, p := range all {
+		td := newTemplateData(p, i, recent, all)
+		regenerateFile(td)
+	}
+}
+
+type TemplateData struct {
+	Post   *LongPost
+	Recent []*ShortPost
+	Prev   *ShortPost
+	Next   *ShortPost
+}
+
+func newTemplateData(p *LongPost, i int, r []*ShortPost, all []*LongPost) *TemplateData {
+	td := &TemplateData{Post: p, Recent: r}
+
+	if i > 0 {
+		td.Prev = all[i-1].Short()
+	}
+	if i < len(all)-2 {
+		td.Next = all[i+1].Short()
 	}
+	return td
+}
+
+type ShortPost struct {
+	Slug        string
+	Author      string
+	Title       string
+	Description string
+	PubTime     time.Time
+	ModTime     time.Time
+}
+
+type LongPost struct {
+	*ShortPost
+	Content []byte
+}
+
+func newLongPost(fi os.FileInfo) *LongPost {
+	slug := strings.Replace(fi.Name(), filepath.Ext(fi.Name()), "", 1)
+	sp := &ShortPost{
+		slug,
+		"author",      // TODO : Complete...
+		slug,          // TODO : Read first heading, or front matter
+		"description", // TODO : Read front matter
+		fi.ModTime(),  // TODO : This is NOT the pub time...
+		fi.ModTime(),
+	}
+
+	f, err := os.Open(filepath.Join(PostsDir, fi.Name()))
+	if err != nil {
+		log.Fatal("FATAL ", err)
+	}
+	defer f.Close()
+	b, err := ioutil.ReadAll(f)
+	if err != nil {
+		log.Fatal("FATAL ", err)
+	}
+	res := blackfriday.MarkdownCommon(b)
+	lp := &LongPost{
+		sp,
+		res,
+	}
+	return lp
+}
+
+func (lp *LongPost) Short() *ShortPost {
+	return lp.ShortPost
 }
 
 // TODO : Should pass to the template:
@@ -82,20 +162,14 @@ func regeneratePosts() {
 // Next : The next (more recent) post
 // Previous : The previous (older) post
 
-func regenerateFile(fi os.FileInfo) {
-	f, err := os.Open(filepath.Join(PostsDir, fi.Name()))
+func regenerateFile(td *TemplateData) {
+	fw, err := os.Create(filepath.Join(PublicDir, td.Post.Slug))
 	if err != nil {
 		log.Fatal("FATAL ", err)
 	}
-	defer f.Close()
-	// TODO : Blackfriday...
-
-	nm := fi.Name()
-	nm = strings.Replace(nm, filepath.Ext(nm), "", 1)
-	fw, err := os.Create(filepath.Join(PublicDir, nm))
+	defer fw.Close()
+	err = postTpl.ExecuteTemplate(fw, postTplNm, td)
 	if err != nil {
 		log.Fatal("FATAL ", err)
 	}
-	defer fw.Close()
-	postTpl.ExecuteTemplate(fw, "post", nil)
 }