Native Wiki Generation

internal/topdata/native.go

@@ -149,10 +149,27 @@ func BuildNative(p *project.Project, progress func(string)) (BuildResult, error)
 		}
 		return BuildResult{}, fmt.Errorf("topdata validation failed with %d error(s)", report.ErrorCount())
 	}
-	return buildNativeUnchecked(p, progress)
+	var prebuiltWiki *wikiResult
+	if newestWikiSource, _, err := newestRelevantWikiSource(p.TopDataSourceDir()); err == nil && !newestWikiSource.IsZero() {
+		statePath := filepath.Join(p.TopDataSourceDir(), wikiRootDirName, wikiStateFileName)
+		outputDir := filepath.Join(p.TopDataSourceDir(), wikiRootDirName, wikiPagesDirName)
+		if stateInfo, err := os.Stat(statePath); err == nil && !newestWikiSource.After(stateInfo.ModTime()) {
+			if outputInfo, err := os.Stat(outputDir); err == nil && outputInfo.IsDir() {
+				if state, err := loadWikiState(statePath); err == nil {
+					prebuiltWiki = &wikiResult{
+						OutputDir: outputDir,
+						PageCount: state.Pages,
+						Status:    wikiSkippedStatus,
+						Digest:    state.Digest,
+					}
+				}
+			}
+		}
+	}
+	return buildNativeUnchecked(p, progress, prebuiltWiki)
 }
 
-func buildNativeUnchecked(p *project.Project, progress func(string)) (BuildResult, error) {
+func buildNativeUnchecked(p *project.Project, progress func(string), prebuiltWiki *wikiResult) (BuildResult, error) {
 	if progress == nil {
 		progress = func(string) {}
 	}
@@ -306,12 +323,34 @@ func buildNativeUnchecked(p *project.Project, progress func(string)) (BuildResul
 		return BuildResult{}, err
 	}
 
+	wikiBuild := wikiResult{Status: wikiSkippedStatus}
+	if prebuiltWiki != nil {
+		wikiBuild = *prebuiltWiki
+	} else {
+		wikiBuild, err = buildWiki(p, BuildResult{
+			Mode:         "native",
+			Output2DADir: output2DA,
+			OutputTLKDir: outputTLK,
+			Files2DA:     files2DA,
+			FilesTLK:     filesTLK,
+		}, progress)
+		if err != nil {
+			return BuildResult{}, err
+		}
+		if wikiBuild.PageCount > 0 && wikiBuild.Status == wikiSkippedStatus {
+			wikiBuild.Status = wikiGeneratedStatus
+		}
+	}
+
 	return BuildResult{
-		Mode:         "native",
-		Output2DADir: output2DA,
-		OutputTLKDir: outputTLK,
-		Files2DA:     files2DA,
-		FilesTLK:     filesTLK,
+		Mode:          "native",
+		Output2DADir:  output2DA,
+		OutputTLKDir:  outputTLK,
+		Files2DA:      files2DA,
+		FilesTLK:      filesTLK,
+		WikiOutputDir: wikiBuild.OutputDir,
+		WikiPages:     wikiBuild.PageCount,
+		WikiStatus:    wikiBuild.Status,
 	}, nil
 }