diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/build/main.go | 332 |
1 files changed, 234 insertions, 98 deletions
diff --git a/cmd/build/main.go b/cmd/build/main.go index 0776951..6519fa8 100644 --- a/cmd/build/main.go +++ b/cmd/build/main.go @@ -4,7 +4,9 @@ import ( "bytes" "encoding/xml" "fmt" + "io/fs" "log" + "log/slog" "os" "path" "path/filepath" @@ -14,11 +16,13 @@ import ( . "alanpearce.eu/website/internal/config" + "github.com/BurntSushi/toml" "github.com/PuerkitoBio/goquery" "github.com/adrg/frontmatter" "github.com/antchfx/xmlquery" "github.com/antchfx/xpath" mapset "github.com/deckarep/golang-set/v2" + "github.com/pkg/errors" "github.com/yuin/goldmark" "github.com/yuin/goldmark/extension" "github.com/yuin/goldmark/renderer/html" @@ -44,30 +48,31 @@ type Post struct { type Tags mapset.Set[string] -func check(err error) { - if err != nil { - log.Panic(err) - } -} - -func getPost(filename string) (PostMatter, []byte) { +func getPost(filename string) (*PostMatter, *[]byte, error) { matter := PostMatter{} content, err := os.Open(filename) - check(err) - rest, err := frontmatter.Parse(content, &matter) - check(err) + defer content.Close() + if err != nil { + return nil, nil, errors.WithMessagef(err, "could not open post %s", filename) + } + rest, err := frontmatter.MustParse(content, &matter) + if err != nil { + return nil, nil, errors.WithMessagef(err, "could not parse front matter of post %s", filename) + } - return matter, rest + return &matter, &rest, nil } -func readPosts(root string, inputDir string, outputDir string) ([]Post, Tags) { +func readPosts(root string, inputDir string, outputDir string) ([]Post, Tags, error) { tags := mapset.NewSet[string]() posts := []Post{} subdir := filepath.Join(root, inputDir) files, err := os.ReadDir(subdir) + if err != nil { + return nil, nil, errors.WithMessagef(err, "could not read post directory %s", subdir) + } outputReplacer := strings.NewReplacer(root, outputDir, ".md", "/index.html") urlReplacer := strings.NewReplacer(root, "", ".md", "/") - check(err) md := goldmark.New( goldmark.WithRendererOptions( html.WithUnsafe(), @@ -80,25 +85,28 @@ func readPosts(root string, inputDir string, outputDir string) ([]Post, Tags) { ) for _, f := range files { pathFromRoot := filepath.Join(subdir, f.Name()) - check(err) if !f.IsDir() && path.Ext(pathFromRoot) == ".md" { output := outputReplacer.Replace(pathFromRoot) url := urlReplacer.Replace(pathFromRoot) - matter, content := getPost(pathFromRoot) + matter, content, err := getPost(pathFromRoot) + if err != nil { + return nil, nil, err + } for _, tag := range matter.Taxonomies.Tags { tags.Add(strings.ToLower(tag)) } var buf bytes.Buffer - err := md.Convert(content, &buf) - check(err) + if err := md.Convert(*content, &buf); err != nil { + return nil, nil, errors.WithMessage(err, "could not convert markdown content") + } post := Post{ Input: pathFromRoot, Output: output, Basename: filepath.Base(url), URL: url, - PostMatter: matter, + PostMatter: *matter, Content: buf.String(), } @@ -108,15 +116,23 @@ func readPosts(root string, inputDir string, outputDir string) ([]Post, Tags) { slices.SortFunc(posts, func(a, b Post) int { return b.Date.Compare(a.Date) }) - return posts, tags + return posts, tags, nil } -func layout(filename string, config Config, pageTitle string) *goquery.Document { - css, err := os.ReadFile("templates/style.css") - check(err) +func layout(filename string, config Config, pageTitle string) (*goquery.Document, error) { html, err := os.Open(filename) + if err != nil { + return nil, err + } + defer html.Close() + css, err := os.ReadFile("templates/style.css") + if err != nil { + return nil, err + } doc, err := goquery.NewDocumentFromReader(html) - check(err) + if err != nil { + return nil, err + } doc.Find("html").SetAttr("lang", config.DefaultLanguage) doc.Find("head > link[rel=alternate]").SetAttr("title", config.Title) doc.Find(".title").SetText(config.Title) @@ -128,14 +144,19 @@ func layout(filename string, config Config, pageTitle string) *goquery.Document for _, link := range config.Menus["main"] { nav.AppendSelection(navLink.Clone().SetAttr("href", link.URL).SetText(link.Name)) } - return doc + return doc, nil } -func renderPost(post Post, config Config) string { - doc := layout("templates/post.html", config, post.PostMatter.Title) +func renderPost(post Post, config Config) (string, error) { + doc, err := layout("templates/post.html", config, post.PostMatter.Title) + if err != nil { + return "", err + } doc.Find(".title").AddClass("h-card p-author").SetAttr("rel", "author") datetime, err := post.PostMatter.Date.MarshalText() - check(err) + if err != nil { + return "", err + } doc.Find(".h-entry .dt-published").SetAttr("datetime", string(datetime)).SetText( post.PostMatter.Date.Format("2006-01-02"), ) @@ -146,13 +167,14 @@ func renderPost(post Post, config Config) string { for _, tag := range post.Taxonomies.Tags { categories.AppendSelection(cat.Clone().Find(".p-category").SetAttr("href", fmt.Sprintf("/tags/%s/", tag)).SetText("#" + tag)).Parent() } - html, err := doc.Html() - check(err) - return html + return doc.Html() } -func renderTags(tags Tags, config Config) string { - doc := layout("templates/tags.html", config, config.Title) +func renderTags(tags Tags, config Config) (string, error) { + doc, err := layout("templates/tags.html", config, config.Title) + if err != nil { + return "", err + } tagList := doc.Find(".tags") tpl := doc.Find(".h-feed") tpl.Remove() @@ -161,19 +183,20 @@ func renderTags(tags Tags, config Config) string { tpl.Clone().SetAttr("href", fmt.Sprintf("/tags/%s/", tag)).SetText("#" + tag), ) } - html, err := doc.Html() - check(err) - return html + return doc.Html() } -func renderListPage(tag string, config Config, posts []Post) string { +func renderListPage(tag string, config Config, posts []Post) (string, error) { var title string if len(tag) > 0 { title = tag } else { title = config.Title } - doc := layout("templates/list.html", config, title) + doc, err := layout("templates/list.html", config, title) + if err != nil { + return "", err + } feed := doc.Find(".h-feed") tpl := feed.Find(".h-entry") tpl.Remove() @@ -188,28 +211,35 @@ func renderListPage(tag string, config Config, posts []Post) string { for _, post := range posts { entry := tpl.Clone() datetime, err := post.PostMatter.Date.MarshalText() - check(err) + if err != nil { + return "", err + } entry.Find(".p-name").SetText(post.Title).SetAttr("href", post.URL) entry.Find(".dt-published").SetAttr("datetime", string(datetime)).SetText(post.PostMatter.Date.Format("2006-01-02")) feed.AppendSelection(entry) } - html, err := doc.Html() - check(err) - return html + return doc.Html() } -func renderHomepage(config Config, posts []Post) string { - _, index := getPost("content/_index.md") - doc := layout("templates/homepage.html", config, config.Title) +func renderHomepage(config Config, posts []Post) (string, error) { + _, index, err := getPost("content/_index.md") + if err != nil { + return "", err + } + doc, err := layout("templates/homepage.html", config, config.Title) + if err != nil { + return "", err + } doc.Find("body").AddClass("h-card") doc.Find(".title").AddClass("p-name u-url") var buf bytes.Buffer md := goldmark.New(goldmark.WithRendererOptions(html.WithUnsafe())) - err := md.Convert(index, &buf) - check(err) + if err := md.Convert(*index, &buf); err != nil { + return "", err + } doc.Find("#content").SetHtml(buf.String()) feed := doc.Find(".h-feed") @@ -221,7 +251,9 @@ func renderHomepage(config Config, posts []Post) string { entry.Find(".p-name").SetText(post.Title) entry.Find(".u-url").SetAttr("href", post.URL) datetime, err := post.PostMatter.Date.MarshalText() - check(err) + if err != nil { + return "", err + } entry. Find(".dt-published"). SetAttr("datetime", string(datetime)). @@ -243,21 +275,23 @@ func renderHomepage(config Config, posts []Post) string { elsewhere.AppendSelection(el) } - html, err := doc.Html() - check(err) - return html + return doc.Html() } -func render404(config Config) string { - doc := layout("templates/404.html", config, "404 Not Found") - html, err := doc.Html() - check(err) - return html +func render404(config Config) (string, error) { + doc, err := layout("templates/404.html", config, "404 Not Found") + if err != nil { + return "", err + } + return doc.Html() } -func renderFeed(title string, config Config, posts []Post, specific string) string { +func renderFeed(title string, config Config, posts []Post, specific string) (string, error) { reader, err := os.Open("templates/feed.xml") - check(err) + if err != nil { + return "", err + } + defer reader.Close() doc, err := xmlquery.Parse(reader) feed := doc.SelectElement("feed") feed.SelectElement("title").FirstChild.Data = title @@ -281,7 +315,9 @@ func renderFeed(title string, config Config, posts []Post, specific string) stri Type: "html", }, }, " ", " ") - check(err) + if err != nil { + return "", err + } entry, err := xmlquery.ParseWithOptions(strings.NewReader(string(text)), xmlquery.ParserOptions{ Decoder: &xmlquery.DecoderOptions{ Strict: false, @@ -289,54 +325,87 @@ func renderFeed(title string, config Config, posts []Post, specific string) stri Entity: xml.HTMLEntity, }, }) - check(err) + if err != nil { + return "", err + } xmlquery.AddChild(feed, entry.SelectElement("entry")) } - return doc.OutputXML(true) + return doc.OutputXML(true), nil } -func renderFeedStyles() string { +func renderFeedStyles() (string, error) { reader, err := os.Open("templates/feed-styles.xsl") + if err != nil { + return "", err + } + defer reader.Close() nsMap := map[string]string{ "xsl": "http://www.w3.org/1999/XSL/Transform", "atom": "http://www.w3.org/2005/Atom", "xhtml": "http://www.w3.org/1999/xhtml", } - check(err) doc, err := xmlquery.Parse(reader) expr, err := xpath.CompileWithNS("//xhtml:style", nsMap) - check(err) + if err != nil { + return "", err + } style := xmlquery.QuerySelector(doc, expr) css, err := os.ReadFile("templates/style.css") - check(err) + if err != nil { + return "", err + } xmlquery.AddChild(style, &xmlquery.Node{ Type: xmlquery.TextNode, Data: string(css), }) - return doc.OutputXML(true) + return doc.OutputXML(true), nil } -func main() { - err, config := GetConfig() +type errFiler struct { + err error +} + +func build() error { + config, err := GetConfig() + if err != nil { + return err + } outDir := "new" - check(err) - err = os.MkdirAll(path.Join(outDir, "post"), 0755) - check(err) - log.Print("Generating site...") - posts, tags := readPosts("content", "post", outDir) + if err := os.MkdirAll(path.Join(outDir, "post"), 0755); err != nil { + return errors.WithMessage(err, "could not create post output directory") + } + posts, tags, err := readPosts("content", "post", outDir) + if err != nil { + return err + } + for _, post := range posts { - err := os.MkdirAll(path.Join(outDir, "post", post.Basename), 0755) - check(err) - // output := renderPost(post, config) - // err = os.WriteFile(post.Output, []byte(output), 0755) - // check(err) - } - err = os.MkdirAll(path.Join(outDir, "tags"), 0755) - check(err) - // fmt.Printf("%+v\n", renderTags(tags, config)) - // err = os.WriteFile(path.Join(outDir, "tags", "index.html"), []byte(renderTags(tags, config)), 0755) - // check(err) + dst := path.Join(outDir, "post", post.Basename) + if err := os.MkdirAll(dst, 0755); err != nil { + return errors.WithMessagef(err, "could not create directory for post %s", dst) + } + output, err := renderPost(post, *config) + if err != nil { + return errors.WithMessagef(err, "could not render post %s", post.Input) + } + if err := os.WriteFile(post.Output, []byte(output), 0755); err != nil { + return errors.WithMessage(err, "could not write output file") + } + } + + if err := os.MkdirAll(path.Join(outDir, "tags"), 0755); err != nil { + return errors.WithMessage(err, "could not create directory for tags") + } + tagsHtml, err := renderTags(tags, *config) + if err != nil { + return errors.WithMessage(err, "could not render tags") + } + err = os.WriteFile(path.Join(outDir, "tags", "index.html"), []byte(tagsHtml), 0644) + if err != nil { + return errors.WithMessage(err, "could not write output file") + } + for _, tag := range tags.ToSlice() { matchingPosts := []Post{} for _, post := range posts { @@ -344,27 +413,94 @@ func main() { matchingPosts = append(matchingPosts, post) } } - err := os.MkdirAll(path.Join(outDir, "tags", tag), 0755) - check(err) - // tagPage := renderListPage(tag, config, matchingPosts) - // fmt.Printf("%+v\n", tagPage) - // err = os.WriteFile(path.Join(outDir, "tags", tag, "index.html"), []byte(tagPage), 0755) - // check(err) + if err := os.MkdirAll(path.Join(outDir, "tags", tag), 0755); err != nil { + return errors.WithMessage(err, "could not create directory") + } + tagPage, err := renderListPage(tag, *config, matchingPosts) + if err != nil { + return errors.WithMessage(err, "could not render tag page") + } + if err := os.WriteFile(path.Join(outDir, "tags", tag, "index.html"), []byte(tagPage), 0644); err != nil { + return errors.WithMessage(err, "could not write tag output file") + } + + feedPage, err := renderFeed(fmt.Sprintf("%s - %s", config.Title, tag), *config, matchingPosts, tag) + if err != nil { + return errors.WithMessage(err, "could not render tag feed page") + } + if err := os.WriteFile(path.Join(outDir, "tags", tag, "atom.xml"), []byte(feedPage), 0644); err != nil { + return errors.WithMessage(err, "could not write tag feed output file") + } + } + listPage, err := renderListPage("", *config, posts) + if err != nil { + return errors.WithMessage(err, "could not render list page") + } + if err := os.WriteFile(path.Join(outDir, "post", "index.html"), []byte(listPage), 0644); err != nil { + return errors.WithMessage(err, "could not write list page output file") + } + + feed, err := renderFeed(config.Title, *config, posts, "feed") + if err != nil { + return errors.WithMessage(err, "could not render feed") + } + if err := os.WriteFile(path.Join(outDir, "atom.xml"), []byte(feed), 0644); err != nil { + return errors.WithMessage(err, "could not write feed") + } - // fmt.Printf("%+v\n", renderFeed(fmt.Sprintf("%s - %s", config.Title, tag), config, matchingPosts, tag)) + feedStyles, err := renderFeedStyles() + if err != nil { + return errors.WithMessage(err, "could not render feed styles") + } + if err := os.WriteFile(path.Join(outDir, "feed-styles.xsl"), []byte(feedStyles), 0644); err != nil { + return errors.WithMessage(err, "could not write feed styles") + } - // fmt.Printf("%+v\n", renderListPage("", config, posts)) + homePage, err := renderHomepage(*config, posts) + if err != nil { + return errors.WithMessage(err, "could not render homepage") + } + if err := os.WriteFile(path.Join(outDir, "index.html"), []byte(homePage), 0644); err != nil { + return errors.WithMessage(err, "could not write homepage") + } - // fmt.Printf("%+v\n", renderFeed(config.Title, config, posts, "feed")) + notFound, err := render404(*config) + if err != nil { + return errors.WithMessage(err, "could not render 404 page") + } + if err := os.WriteFile(path.Join(outDir, "404.html"), []byte(notFound), 0644); err != nil { + return errors.WithMessage(err, "could not write 404 file") + } - // fmt.Printf("%+v\n", renderFeedStyles()) + return nil +} - // fmt.Printf("%+v\n", renderHomepage(config, posts)) +func main() { + if true { + slog.SetLogLoggerLevel(slog.LevelDebug) + } + slog.Debug("starting build process") + _, err := os.Getwd() + if err != nil { + log.Panic(errors.Errorf("working directory does not exist: %v", err)) + } - fmt.Printf("%+v\n", render404(config)) - fmt.Println(config.DefaultLanguage) + // log.SetFlags(log.Lshortfile) + if err := build(); err != nil { + switch cause := errors.Cause(err).(type) { + case *fs.PathError: + slog.Info("pathError") + slog.Error(fmt.Sprintf("%s", err)) + case toml.ParseError: + slog.Info("parseError") + slog.Error(fmt.Sprintf("%s", err)) + default: + slog.Info("other") + slog.Error(fmt.Sprintf("cause:%+v", errors.Cause(cause))) + slog.Error(fmt.Sprintf("%+v", cause)) + } + os.Exit(1) } - fmt.Printf("%+v\n", tags) - fmt.Println() + slog.Debug("done") } |