mirror of
https://github.com/ViViDboarder/docset-sfdc.git
synced 2024-11-15 04:36:32 +00:00
323 lines
8.3 KiB
Go
323 lines
8.3 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"path/filepath"
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"sync"
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)
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// CSS Paths
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var cssBaseURL = "https://developer.salesforce.com/resource/stylesheets"
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var cssFiles = []string{"holygrail.min.css", "docs.min.css", "syntax-highlighter.min.css"}
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var buildDir = "build"
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var wg sync.WaitGroup
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var throttle = make(chan int, maxConcurrency)
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const maxConcurrency = 16
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func parseFlags() (locale string, deliverables []string, debug bool) {
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flag.StringVar(
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&locale, "locale", "en-us",
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"locale to use for documentation (default: en-us)",
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)
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flag.BoolVar(
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&debug, "debug", false, "this flag supresses warning messages",
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)
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flag.Parse()
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// All other args are for deliverables
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// apexcode, pages, or lightening
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deliverables = flag.Args()
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return
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}
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// getTOC Retrieves the TOC JSON and Unmarshals it
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func getTOC(locale string, deliverable string) (toc *AtlasTOC, err error) {
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var tocURL = fmt.Sprintf("https://developer.salesforce.com/docs/get_document/atlas.%s.%s.meta", locale, deliverable)
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LogDebug("TOC URL: %s", tocURL)
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resp, err := http.Get(tocURL)
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ExitIfError(err)
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// Read the downloaded JSON
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defer func() {
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ExitIfError(resp.Body.Close())
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}()
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contents, err := ioutil.ReadAll(resp.Body)
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ExitIfError(err)
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// Load into Struct
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toc = new(AtlasTOC)
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LogDebug("TOC JSON: %s", string(contents))
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err = json.Unmarshal([]byte(contents), toc)
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return
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}
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// verifyVersion ensures that the version retrieved is the latest
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func verifyVersion(toc *AtlasTOC) error {
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// jsonVersion, _ := json.Marshal(toc.Version)
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// LogDebug("toc.Version" + string(jsonVersion))
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currentVersion := toc.Version.DocVersion
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// jsonAvailVersions, _ := json.Marshal(toc.AvailableVersions)
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// LogDebug("toc.AvailableVersions" + string(jsonAvailVersions))
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topVersion := toc.AvailableVersions[0].DocVersion
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if currentVersion != topVersion {
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return NewFormatedError("verifyVersion: retrieved version is not the latest. Found %s, latest is %s", currentVersion, topVersion)
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}
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return nil
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}
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func printSuccess(toc *AtlasTOC) {
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LogInfo("Success: %s - %s - %s", toc.DocTitle, toc.Version.VersionText, toc.Version.DocVersion)
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}
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func saveMainContent(toc *AtlasTOC) {
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filePath := fmt.Sprintf("%s.html", toc.Deliverable)
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// Prepend build dir
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filePath = filepath.Join(buildDir, filePath)
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// Make sure file doesn't exist first
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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content := toc.Content
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err = os.MkdirAll(filepath.Dir(filePath), 0755)
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ExitIfError(err)
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// TODO: Do something to format full page here
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ofile, err := os.Create(filePath)
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ExitIfError(err)
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defer func() {
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ExitIfError(ofile.Close())
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}()
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_, err = ofile.WriteString(
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"<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />" +
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content,
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)
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ExitIfError(err)
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}
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}
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// saveContentVersion will retrieve the version number from the TOC and save that to a text file
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func saveContentVersion(toc *AtlasTOC) {
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filePath := fmt.Sprintf("%s-version.txt", toc.Deliverable)
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// Prepend build dir
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filePath = filepath.Join(buildDir, filePath)
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err := os.MkdirAll(filepath.Dir(filePath), 0755)
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ExitIfError(err)
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ofile, err := os.Create(filePath)
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ExitIfError(err)
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defer func() {
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ExitIfError(ofile.Close())
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}()
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_, err = ofile.WriteString(toc.Version.DocVersion)
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ExitIfError(err)
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}
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// downloadCSS will download a CSS file using the CSS base URL
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func downloadCSS(fileName string, wg *sync.WaitGroup) {
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downloadFile(cssBaseURL+"/"+fileName, fileName, wg)
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}
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// downloadFile will download n aribtrary file to a given file path
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// It will also handle throttling if a WaitGroup is provided
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func downloadFile(url string, fileName string, wg *sync.WaitGroup) {
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if wg != nil {
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defer wg.Done()
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}
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filePath := filepath.Join(buildDir, fileName)
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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err = os.MkdirAll(filepath.Dir(filePath), 0755)
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ExitIfError(err)
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ofile, err := os.Create(filePath)
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ExitIfError(err)
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defer func() {
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ExitIfError(ofile.Close())
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}()
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response, err := http.Get(url)
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ExitIfError(err)
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defer func() {
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ExitIfError(response.Body.Close())
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}()
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_, err = io.Copy(ofile, response.Body)
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ExitIfError(err)
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}
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if wg != nil {
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<-throttle
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}
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}
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// getEntryType will return an entry type that should be used for a given entry and it's parent's type
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func getEntryType(entry TOCEntry, parentType SupportedType) (SupportedType, error) {
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if parentType.ForceCascadeType {
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return parentType.CreateChildType(), nil
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}
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childType, err := lookupEntryType(entry)
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if err != nil && parentType.ShouldCascade() {
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childType = parentType.CreateChildType()
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err = nil
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}
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return childType, err
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}
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// lookupEntryType returns the matching SupportedType for a given entry or returns an error
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func lookupEntryType(entry TOCEntry) (SupportedType, error) {
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for _, t := range SupportedTypes {
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if entry.IsType(t) {
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return t, nil
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}
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}
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return SupportedType{}, NewTypeNotFoundError(entry)
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}
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// processEntryReference downloads html and indexes a toc item
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func processEntryReference(entry TOCEntry, entryType SupportedType, toc *AtlasTOC) {
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LogDebug("Processing: %s", entry.Text)
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throttle <- 1
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wg.Add(1)
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go downloadContent(entry, toc, &wg)
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if entryType.ShouldSkipIndex() {
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LogDebug("%s is a container or is hidden. Do not index", entry.Text)
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} else if !entryType.IsValidType() {
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LogDebug("No entry type for %s. Cannot index", entry.Text)
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} else {
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SaveSearchIndex(dbmap, entry, entryType, toc)
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}
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}
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// entryHierarchy allows breadcrumb naming
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var entryHierarchy []string
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// processChildReferences iterates through all child toc items, cascading types, and indexes them
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func processChildReferences(entry TOCEntry, entryType SupportedType, toc *AtlasTOC) {
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if entryType.PushName {
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entryHierarchy = append(entryHierarchy, entry.CleanTitle(entryType))
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}
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for _, child := range entry.Children {
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LogDebug("Reading child: %s", child.Text)
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var err error
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var childType SupportedType
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// Skip anything without an HTML page
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if child.LinkAttr.Href != "" {
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childType, err = getEntryType(child, entryType)
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if err == nil {
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processEntryReference(child, childType, toc)
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} else {
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WarnIfError(err)
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}
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} else {
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LogDebug("%s has no link. Skipping", child.Text)
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}
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if len(child.Children) > 0 {
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processChildReferences(child, childType, toc)
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}
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}
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LogDebug("Done processing children for %s", entry.Text)
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if entryType.PushName {
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entryHierarchy = entryHierarchy[:len(entryHierarchy)-1]
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}
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}
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// downloadContent will download the html file for a given entry
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func downloadContent(entry TOCEntry, toc *AtlasTOC, wg *sync.WaitGroup) {
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defer wg.Done()
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filePath := entry.GetContentFilepath(toc, true)
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// Prepend build dir
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filePath = filepath.Join(buildDir, filePath)
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// Make sure file doesn't exist first
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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content, err := entry.GetContent(toc)
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ExitIfError(err)
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err = os.MkdirAll(filepath.Dir(filePath), 0755)
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ExitIfError(err)
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// TODO: Do something to format full page here
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ofile, err := os.Create(filePath)
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ExitIfError(err)
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header := "<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />" +
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"<base href=\"../../\"/>\n"
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for _, cssFile := range cssFiles {
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header += fmt.Sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">", cssFile)
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}
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header += "<style>body { padding: 15px; }</style>"
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defer func() {
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ExitIfError(ofile.Close())
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}()
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_, err = ofile.WriteString(
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header + content.Content,
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)
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ExitIfError(err)
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}
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<-throttle
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}
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func main() {
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LogInfo("Starting...")
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locale, deliverables, debug := parseFlags()
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if debug {
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SetLogLevel(DEBUG)
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}
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// Download CSS
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for _, cssFile := range cssFiles {
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throttle <- 1
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wg.Add(1)
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go downloadCSS(cssFile, &wg)
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}
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// Download icon
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go downloadFile("https://developer.salesforce.com/resources2/favicon.ico", "icon.ico", nil)
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// Init the Sqlite db
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dbmap = InitDb(buildDir)
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err := dbmap.TruncateTables()
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ExitIfError(err)
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for _, deliverable := range deliverables {
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toc, err := getTOC(locale, deliverable)
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err = verifyVersion(toc)
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WarnIfError(err)
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saveMainContent(toc)
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saveContentVersion(toc)
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// Download each entry
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for _, entry := range toc.TOCEntries {
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entryType, err := lookupEntryType(entry)
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if err == nil {
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processEntryReference(entry, entryType, toc)
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}
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processChildReferences(entry, entryType, toc)
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}
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printSuccess(toc)
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}
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wg.Wait()
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}
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