79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package main
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import (
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"fmt"
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"os/exec"
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"time"
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)
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func ConvertToPDF(folderPath string, filesPaths []string, contType ContentType) (resultingPath string, err error) {
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switch contType {
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case Images:
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return ImagesToPDF(folderPath, filesPaths)
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case Office:
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return OfficeToPDF(folderPath, filesPaths)
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case Pdfs:
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return PdfToPDF(folderPath, filesPaths)
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default:
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return "", fmt.Errorf("unhandled ContentType with %d index", contType)
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}
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}
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func ImagesToPDF(folderPath string, filesPaths []string) (resultingPath string, err error) {
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resultingPath = createResultingPath(folderPath, "Images")
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if err := runCommand("convert", append(filesPaths, resultingPath)...); err != nil {
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return "", err
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}
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return resultingPath, nil
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}
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func OfficeToPDF(folderPath string, filesPaths []string) (resultingPath string, err error) {
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resultingPath = createResultingPath(folderPath, "Office document")
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err = runCommand(
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"soffice", "--headless", "--nologo", "--nofirststartwizard",
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"--norestore", "--convert-to", "pdf", "--outdir", folderPath, filesPaths[0],
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)
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if err != nil {
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return "", err
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}
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err = runCommand("mv", folderPath+"/"+"0.pdf", resultingPath)
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if err != nil {
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return "", err
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}
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return resultingPath, nil
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}
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func PdfToPDF(folderPath string, filesPath []string) (resultingPath string, err error) {
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resultingPath = createResultingPath(folderPath, "PDFs")
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err = runCommand("gs", append([]string{
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"-sDEVICE=pdfwrite", "-dCompressFonts=true", "-dPDFSETTINGS=/ebook",
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"-dNOPAUSE", "-dQUIET", "-dBATCH", "-sOutputFile=" + resultingPath,
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}, filesPath...)...)
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if err != nil {
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return "", err
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}
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return resultingPath, nil
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}
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func createResultingPath(folderPath string, suffix string) string {
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return folderPath + "/" + time.Now().Format(time.ANSIC) + " " + suffix + ".pdf"
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}
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func runCommand(command string, arg ...string) error {
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cmd := exec.Command(command, arg...)
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if err := cmd.Run(); err != nil {
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return err
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}
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return nil
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}
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