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reveal.go
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reveal.go
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package showandtell
import (
"fmt"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"strings"
"github.com/gobuffalo/packr/v2"
)
var (
cssBox = packr.New("css", "./dist_temp/reveal/css")
libBox = packr.New("lib", "./dist_temp/reveal/lib")
jsBox = packr.New("js", "./dist_temp/reveal/js")
pluginBox = packr.New("plugin", "./dist_temp/reveal/plugin")
imagesBox = packr.New("images", "./dist_temp/reveal/img")
revealBoxes = []*packr.Box{cssBox, libBox, jsBox, pluginBox, imagesBox}
)
func dirExists(dirPath string) bool {
if _, err := os.Stat(dirPath); err != nil && os.IsNotExist(err) {
return false
} else if err != nil && os.IsExist(err) {
return true
}
return true
}
func AddCustomFiles(baseDir string) error {
if !dirExists(baseDir) {
return nil
}
for _, b := range revealBoxes {
dirPath := filepath.Join(baseDir, b.Name)
if !dirExists(dirPath) {
continue
}
err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
if !info.IsDir() {
relPath := strings.TrimPrefix(path, dirPath)
relPath = strings.TrimPrefix(relPath, "/")
fmt.Printf("Adding custom file %s to %s\n", relPath, b.Name)
fileBytes, err := ioutil.ReadFile(path)
if err != nil {
return err
}
if err := b.AddBytes(relPath, fileBytes); err != nil {
return err
}
}
return nil
})
if err != nil {
return err
}
}
return nil
}
func ServeRevealJS() *http.ServeMux {
mux := &http.ServeMux{}
for _, b := range revealBoxes {
path := "/" + b.Name + "/"
mux.Handle(path, http.StripPrefix(path, http.FileServer(b)))
}
return mux
}
func EmitRevealJS(destDir string) error {
for _, b := range revealBoxes {
destPath := filepath.Join(destDir, b.Name)
if err := os.MkdirAll(destPath, 0777); err != nil {
return nil
}
for _, f := range b.List() {
fPath := filepath.Join(destPath, f)
outDir := filepath.Dir(fPath)
if outDir != destPath {
if err := os.MkdirAll(outDir, 0777); err != nil {
return err
}
}
outFile, err := os.Create(fPath)
if err != nil {
return err
}
defer outFile.Close()
data, err := b.Find(f)
if err != nil {
return err
}
if _, err := outFile.Write(data); err != nil {
return err
}
}
}
return nil
}