feat: add ability to customize the output font

README.md

@@ -30,6 +30,7 @@ Written in Go.
 1. [x] Migrate "Show more..." of WordPress -> `Summary` in Hugo
 1. [x] Support for parallax blur (similar to [WordPress Advanced Backgrounds](https://wordpress.org/plugins/advanced-backgrounds/))
 1. [x] Migrate WordPress table of content -> Hugo
+1. [x] Custom font - defaults to Lexend
 1. [ ] Migrate code blocks correctly - syntax highlighting is not working right now
 1. [ ] Featured images - I tried this [WordPress plugin](https://wordpress.org/plugins/export-media-with-selected-content/) but featured images are simply not exported
 

src/wp2hugo/cmd/wp2hugo/main.go

@@ -18,6 +18,8 @@ var (
 	// This is useful for repeated executions of the tool to avoid downloading the media files again
 	// Mostly for development and not for the production use
 	mediaCacheDir = flag.String("media-cache-dir", path.Join("/tmp/wp2hugo-cache"), "dir path to cache the downloaded media files")
+	// Custom font for Hugo's papermod theme
+	font = flag.String("font", "Lexend", "custom font for the output website")
 )
 
 func main() {
@@ -43,7 +45,7 @@ func handle(filePath string) error {
 	if err != nil {
 		return err
 	}
-	return generate(*websiteInfo, *outputDir, *downloadMedia)
+	return generate(*websiteInfo, *outputDir)
 }
 
 func getWebsiteInfo(filePath string) (*wpparser.WebsiteInfo, error) {
@@ -55,8 +57,8 @@ func getWebsiteInfo(filePath string) (*wpparser.WebsiteInfo, error) {
 	return parser.Parse(file)
 }
 
-func generate(info wpparser.WebsiteInfo, outputDirPath string, downloadMedia bool) error {
+func generate(info wpparser.WebsiteInfo, outputDirPath string) error {
 	log.Debug().Msgf("Output: %s", outputDirPath)
-	generator := hugogenerator.NewGenerator(outputDirPath, downloadMedia, mediacache.New(*mediaCacheDir), info)
+	generator := hugogenerator.NewGenerator(outputDirPath, *downloadMedia, *font, mediacache.New(*mediaCacheDir), info)
 	return generator.Generate()
 }

src/wp2hugo/internal/hugogenerator/hugo_custom_font.go

@@ -0,0 +1,52 @@
+package hugogenerator
+
+import (
+	"errors"
+	"fmt"
+	"github.com/rs/zerolog/log"
+	"os"
+	"path/filepath"
+)
+
+const _extendedHeaderData = `
+<link rel="preconnect" href="https://fonts.googleapis.com">
+<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+<link href="https://fonts.googleapis.com/css2?family=%s&display=swap" rel="stylesheet">
+`
+
+const _outputHeadFile = "themes/PaperMod/layouts/partials/extend_head.html"
+
+const _customFontCSS = `
+body {
+	font-family: '%s', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
+	font-size: 18px;
+	line-height: 1.6;
+	word-break: break-word;
+	background: var(--theme);
+}
+`
+
+const _outputCssFile = "themes/PaperMod/assets/css/extended/blank.css"
+
+// Custom font for Hugo's papermod theme
+// Ref: https://forum.wildserver.ru/viewtopic.php?t=18
+func setupFont(siteDir string, fontName string) error {
+	err1 := appendFile(filepath.Join(siteDir, _outputHeadFile), fmt.Sprintf(_extendedHeaderData, fontName))
+	err2 := appendFile(filepath.Join(siteDir, _outputCssFile), fmt.Sprintf(_customFontCSS, fontName))
+	return errors.Join(err1, err2)
+}
+
+func appendFile(outputFilePath string, data string) error {
+	log.Info().
+		Str("location", outputFilePath).
+		Msgf("Writing custom font to %s", outputFilePath)
+	f, err := os.OpenFile(outputFilePath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	if _, err := f.WriteString(data); err != nil {
+		return err
+	}
+	return nil
+}

src/wp2hugo/internal/hugogenerator/hugo_gen_setup.go

@@ -35,6 +35,7 @@ placeholder: "placeholder text in search input box"
 `
 
 type Generator struct {
+	fontName         string
 	imageURLProvider hugopage.ImageURLProvider
 	outputDirPath    string
 	downloadMedia    bool
@@ -46,8 +47,10 @@ type MediaProvider interface {
 	GetReader(url string) (io.Reader, error)
 }
 
-func NewGenerator(outputDirPath string, downloadMedia bool, mediaProvider MediaProvider, info wpparser.WebsiteInfo) *Generator {
+func NewGenerator(outputDirPath string, downloadMedia bool, fontName string,
+	mediaProvider MediaProvider, info wpparser.WebsiteInfo) *Generator {
 	return &Generator{
+		fontName:         fontName,
 		imageURLProvider: newImageURLProvider(info),
 		outputDirPath:    outputDirPath,
 		mediaProvider:    mediaProvider,
@@ -77,6 +80,9 @@ func (g Generator) Generate() error {
 	if err = setupSearchPage(*siteDir); err != nil {
 		return err
 	}
+	if err = setupFont(*siteDir, g.fontName); err != nil {
+		return err
+	}
 	if err = WriteCustomShortCodes(*siteDir); err != nil {
 		return err
 	}
@@ -91,7 +97,7 @@ func (g Generator) Generate() error {
 		if err != nil {
 			return fmt.Errorf("error fetching media file %s: %s", url1, err)
 		}
-		if err = writeFavicon(*siteDir, media); err != nil {
+		if err = writeFavicon(path.Join(*siteDir, "static"), media); err != nil {
 			return err
 		}
 	}