feat: add command to generate css files

1 files changed, 41 insertions, 0 deletions

diff --git a/cmd/css/main.go b/cmd/css/main.go
new file mode 100644
index 0000000..367e1b8
--- /dev/null
+++ b/cmd/css/main.go
@@ -0,0 +1,41 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"github.com/alecthomas/chroma/v2/formatters/html"
+	"github.com/alecthomas/chroma/v2/styles"
+)
+
+func main() {
+	_, file, _, _ := runtime.Caller(0)
+	cssDir := filepath.Join(filepath.Dir(file), "../../internal/templates/css")
+
+	formatter := html.New(
+		html.WithLineNumbers(true),
+		html.WithLinkableLineNumbers(true, "L"),
+		html.WithClasses(true),
+	)
+
+	lightStyle := styles.Get("github")
+	darkStyle := styles.Get("github-dark")
+
+	var light, dark strings.Builder
+	_ = formatter.WriteCSS(&light, lightStyle)
+	_ = formatter.WriteCSS(&dark, darkStyle)
+
+	light.WriteString(".chroma .gi { display: block; }\n")
+	light.WriteString(".chroma .gd { display: block; }\n")
+	dark.WriteString(".chroma .gi { display: block; }\n")
+	dark.WriteString(".chroma .gd { display: block; }\n")
+
+	if err := os.WriteFile(filepath.Join(cssDir, "syntax_light.css"), []byte(light.String()), 0o644); err != nil {
+		panic(err)
+	}
+	if err := os.WriteFile(filepath.Join(cssDir, "syntax_dark.css"), []byte(dark.String()), 0o644); err != nil {
+		panic(err)
+	}
+}