metadata

d2cli/main.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"os/user"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -359,7 +360,15 @@ func compile(ctx context.Context, ms *xmain.State, plugin d2plugin.Plugin, rende
 		ms.Log.Success.Printf("successfully compiled %s to %s in %s", ms.HumanPath(inputPath), ms.HumanPath(outputPath), dur)
 		return pdf, true, nil
 	case ".pptx":
-		p := ppt.NewPresentation()
+		ext := filepath.Ext(outputPath)
+		trimmedPath := strings.TrimSuffix(outputPath, ext)
+		splitPath := strings.Split(trimmedPath, "/")
+		rootName := splitPath[len(splitPath)-1]
+		var username string
+		if user, err := user.Current(); err != nil {
+			username = user.Username
+		}
+		p := ppt.NewPresentation(rootName, rootName, rootName, username, version.Version)
 		err := renderPPTX(ctx, ms, p, plugin, renderOpts, outputPath, page, diagram, nil)
 		if err != nil {
 			return nil, false, err

lib/ppt/pptx.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"strings"
+	"time"
 )
 
 // Office Open XML (OOXML) http://officeopenxml.com/prPresentation.php
@@ -124,3 +125,70 @@ func getPresentationXml(slideFileNames []string) string {
 	))
 	return builder.String()
 }
+
+func getCoreXml(title, subject, description, creator string) string {
+	var builder strings.Builder
+
+	builder.WriteString(`<?xml version='1.0' encoding='UTF-8' standalone='yes'?>`)
+	builder.WriteString(`<cp:coreProperties xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">`)
+	builder.WriteString(fmt.Sprintf(`<dc:title>%s</dc:title>`, title))
+	builder.WriteString(fmt.Sprintf(`<dc:subject>%s</dc:subject>`, subject))
+	builder.WriteString(fmt.Sprintf(`<dc:creator>%s</dc:creator>`, creator))
+	builder.WriteString(`<cp:keywords />`)
+	builder.WriteString(fmt.Sprintf(`<dc:description>%s</dc:description>`, description))
+	builder.WriteString(fmt.Sprintf(`<cp:lastModifiedBy>%s</cp:lastModifiedBy>`, creator))
+	builder.WriteString(`<cp:revision>1</cp:revision>`)
+	dateTime := time.Now().Format("RFC3339")
+	builder.WriteString(fmt.Sprintf(`<dcterms:created xsi:type="dcterms:W3CDTF">%s</dcterms:created>`, dateTime))
+	builder.WriteString(fmt.Sprintf(`<dcterms:modified xsi:type="dcterms:W3CDTF">%s</dcterms:modified>`, dateTime))
+	builder.WriteString(`<cp:category />`)
+	builder.WriteString(`</cp:coreProperties>`)
+
+	return builder.String()
+}
+
+func getAppXml(nSlides int, d2version string) string {
+	var builder strings.Builder
+	builder.WriteString(`<?xml version="1.0" encoding="UTF-8" standalone="yes"?>`)
+	builder.WriteString(`<Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties" xmlns:vt="http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes">`)
+	builder.WriteString(`<TotalTime>1</TotalTime>`)
+	builder.WriteString(`<Words>0</Words>`)
+	builder.WriteString(`<Application>D2</Application>`)
+	builder.WriteString(`<PresentationFormat>On-screen Show (4:3)</PresentationFormat>`)
+	builder.WriteString(`<Paragraphs>0</Paragraphs>`)
+	builder.WriteString(fmt.Sprintf(`<Slides>%d</Slides>`, nSlides))
+	builder.WriteString(`<Notes>0</Notes>`)
+	builder.WriteString(`<HiddenSlides>0</HiddenSlides>`)
+	builder.WriteString(`<MMClips>0</MMClips>`)
+	builder.WriteString(`<ScaleCrop>false</ScaleCrop>`)
+	builder.WriteString(`<HeadingPairs>`)
+	builder.WriteString(`<vt:vector size="4" baseType="variant">`)
+	builder.WriteString(`<vt:variant>`)
+	builder.WriteString(`<vt:lpstr>Theme</vt:lpstr>`)
+	builder.WriteString(`</vt:variant>`)
+	builder.WriteString(`<vt:variant>`)
+	builder.WriteString(`<vt:i4>1</vt:i4>`)
+	builder.WriteString(`</vt:variant>`)
+	builder.WriteString(`<vt:variant>`)
+	builder.WriteString(`<vt:lpstr>Slide Titles</vt:lpstr>`)
+	builder.WriteString(`</vt:variant>`)
+	builder.WriteString(`<vt:variant>`)
+	builder.WriteString(`<vt:i4>0</vt:i4>`)
+	builder.WriteString(`</vt:variant>`)
+	builder.WriteString(`</vt:vector>`)
+	builder.WriteString(`</HeadingPairs>`)
+	builder.WriteString(`<TitlesOfParts>`)
+	builder.WriteString(`<vt:vector size="1" baseType="lpstr">`)
+	builder.WriteString(`<vt:lpstr>Office Theme</vt:lpstr>`)
+	builder.WriteString(`</vt:vector>`)
+	builder.WriteString(`</TitlesOfParts>`)
+	builder.WriteString(`<Manager></Manager>`)
+	builder.WriteString(`<Company></Company>`)
+	builder.WriteString(`<LinksUpToDate>false</LinksUpToDate>`)
+	builder.WriteString(`<SharedDoc>false</SharedDoc>`)
+	builder.WriteString(`<HyperlinkBase></HyperlinkBase>`)
+	builder.WriteString(`<HyperlinksChanged>false</HyperlinksChanged>`)
+	builder.WriteString(fmt.Sprintf(`<AppVersion>%s</AppVersion>`, d2version))
+	builder.WriteString(`</Properties>`)
+	return builder.String()
+}

lib/ppt/presentation.go

@@ -11,12 +11,16 @@ import (
 
 // TODO: comments / references / assumptions
 // TODO: update core files with metadata
-// TODO: first slide title
-// TODO: steps number title
 // TODO: links?
 // TODO: appendix?
 
 type Presentation struct {
+	Title       string
+	Description string
+	Subject     string
+	Creator     string
+	D2Version   string
+
 	Slides []*Slide
 }
 
@@ -29,8 +33,14 @@ type Slide struct {
 	ImageLeft   int
 }
 
-func NewPresentation() *Presentation {
-	return &Presentation{}
+func NewPresentation(title, description, subject, creator, d2Version string) *Presentation {
+	return &Presentation{
+		Title:       title,
+		Description: description,
+		Subject:     subject,
+		Creator:     creator,
+		D2Version:   d2Version,
+	}
 }
 
 func (p *Presentation) AddSlide(pngContent []byte, boardPath []string) error {
@@ -126,5 +136,15 @@ func (p *Presentation) SaveTo(filePath string) error {
 		return err
 	}
 
+	err = addFile(zipFile, "docProps/core.xml", getCoreXml(p.Title, p.Subject, p.Description, p.Creator))
+	if err != nil {
+		return err
+	}
+
+	err = addFile(zipFile, "docProps/app.xml", getAppXml(len(p.Slides), p.D2Version))
+	if err != nil {
+		return err
+	}
+
 	return nil
 }