Refactor scraping to include related object fields (#6266)

* Refactor scraper post-processing and process related objects consistently
* Refactor image processing
* Scrape related studio fields consistently
* Don't set image on related objects

pkg/scraper/cache.go

@@ -16,7 +16,6 @@ import (
 	"github.com/stashapp/stash/pkg/logger"
 	"github.com/stashapp/stash/pkg/match"
 	"github.com/stashapp/stash/pkg/models"
-	"github.com/stashapp/stash/pkg/sliceutil"
 	"github.com/stashapp/stash/pkg/txn"
 )
 
@@ -262,19 +261,23 @@ func (c Cache) ScrapeName(ctx context.Context, id, query string, ty ScrapeConten
 		return nil, fmt.Errorf("error while name scraping with scraper %s: %w", id, err)
 	}
 
-	ignoredRegex := c.compileExcludeTagPatterns()
+	pp := postScraper{
-
+		Cache:        c,
-	var ignoredTags []string
+		excludeTagRE: c.compileExcludeTagPatterns(),
+	}
+	if err := c.repository.WithReadTxn(ctx, func(ctx context.Context) error {
 		for i, cc := range content {
-		var thisIgnoredTags []string
+			content[i], err = pp.postScrape(ctx, cc)
-		content[i], thisIgnoredTags, err = c.postScrape(ctx, cc, ignoredRegex)
 			if err != nil {
-			return nil, fmt.Errorf("error while post-scraping with scraper %s: %w", id, err)
+				return fmt.Errorf("error while post-scraping with scraper %s: %w", id, err)
 			}
-		ignoredTags = sliceutil.AppendUniques(ignoredTags, thisIgnoredTags)
+		}
+		return nil
+	}); err != nil {
+		return nil, err
 	}
 
-	LogIgnoredTags(ignoredTags)
+	LogIgnoredTags(pp.ignoredTags)
 
 	return content, nil
 }

pkg/scraper/image.go

@@ -37,88 +37,43 @@ func setPerformerImage(ctx context.Context, client *http.Client, p *models.Scrap
 	return nil
 }
 
-func setSceneImage(ctx context.Context, client *http.Client, s *models.ScrapedScene, globalConfig GlobalConfig) error {
+func setStudioImage(ctx context.Context, client *http.Client, p *models.ScrapedStudio, globalConfig GlobalConfig) error {
-	// don't try to get the image if it doesn't appear to be a URL
+	// backwards compatibility: we fetch the image if it's a URL and set it to the first image
-	if s.Image == nil || !strings.HasPrefix(*s.Image, "http") {
+	// Image is deprecated, so only do this if Images is unset
+	if p.Image == nil || len(p.Images) > 0 {
 		// nothing to do
 		return nil
 	}
 
-	img, err := getImage(ctx, *s.Image, client, globalConfig)
-	if err != nil {
-		return err
-	}
-
-	s.Image = img
-
-	return nil
-}
-
-func setMovieFrontImage(ctx context.Context, client *http.Client, m *models.ScrapedMovie, globalConfig GlobalConfig) error {
 	// don't try to get the image if it doesn't appear to be a URL
-	if m.FrontImage == nil || !strings.HasPrefix(*m.FrontImage, "http") {
+	if !strings.HasPrefix(*p.Image, "http") {
-		// nothing to do
+		p.Images = []string{*p.Image}
 		return nil
 	}
 
-	img, err := getImage(ctx, *m.FrontImage, client, globalConfig)
+	img, err := getImage(ctx, *p.Image, client, globalConfig)
 	if err != nil {
 		return err
 	}
 
-	m.FrontImage = img
+	p.Image = img
+	// Image is deprecated. Use images instead
+	p.Images = []string{*img}
 
 	return nil
 }
 
-func setMovieBackImage(ctx context.Context, client *http.Client, m *models.ScrapedMovie, globalConfig GlobalConfig) error {
+func processImageField(ctx context.Context, imageField *string, client *http.Client, globalConfig GlobalConfig) error {
-	// don't try to get the image if it doesn't appear to be a URL
+	if imageField == nil {
-	if m.BackImage == nil || !strings.HasPrefix(*m.BackImage, "http") {
-		// nothing to do
 		return nil
 	}
 
-	img, err := getImage(ctx, *m.BackImage, client, globalConfig)
+	img, err := getImage(ctx, *imageField, client, globalConfig)
 	if err != nil {
 		return err
 	}
 
-	m.BackImage = img
+	*imageField = *img
-
-	return nil
-}
-
-func setGroupFrontImage(ctx context.Context, client *http.Client, m *models.ScrapedGroup, globalConfig GlobalConfig) error {
-	// don't try to get the image if it doesn't appear to be a URL
-	if m.FrontImage == nil || !strings.HasPrefix(*m.FrontImage, "http") {
-		// nothing to do
-		return nil
-	}
-
-	img, err := getImage(ctx, *m.FrontImage, client, globalConfig)
-	if err != nil {
-		return err
-	}
-
-	m.FrontImage = img
-
-	return nil
-}
-
-func setGroupBackImage(ctx context.Context, client *http.Client, m *models.ScrapedGroup, globalConfig GlobalConfig) error {
-	// don't try to get the image if it doesn't appear to be a URL
-	if m.BackImage == nil || !strings.HasPrefix(*m.BackImage, "http") {
-		// nothing to do
-		return nil
-	}
-
-	img, err := getImage(ctx, *m.BackImage, client, globalConfig)
-	if err != nil {
-		return err
-	}
-
-	m.BackImage = img
-
 	return nil
 }
 

pkg/scraper/postprocessing.go

@@ -11,86 +11,92 @@ import (
 	"github.com/stashapp/stash/pkg/utils"
 )
 
+type postScraper struct {
+	Cache
+	excludeTagRE []*regexp.Regexp
+
+	// ignoredTags is a list of tags that were ignored during post-processing
+	ignoredTags []string
+}
+
 // postScrape handles post-processing of scraped content. If the content
 // requires post-processing, this function fans out to the given content
 // type and post-processes it.
-func (c Cache) postScrape(ctx context.Context, content ScrapedContent, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
+// Assumes called within a read transaction.
+func (c *postScraper) postScrape(ctx context.Context, content ScrapedContent) (_ ScrapedContent, err error) {
+	const related = false
+
 	// Analyze the concrete type, call the right post-processing function
 	switch v := content.(type) {
 	case *models.ScrapedPerformer:
 		if v != nil {
-			return c.postScrapePerformer(ctx, *v, excludeTagRE)
+			return c.postScrapePerformer(ctx, *v, related)
 		}
 	case models.ScrapedPerformer:
-		return c.postScrapePerformer(ctx, v, excludeTagRE)
+		return c.postScrapePerformer(ctx, v, related)
 	case *models.ScrapedScene:
 		if v != nil {
-			return c.postScrapeScene(ctx, *v, excludeTagRE)
+			return c.postScrapeScene(ctx, *v)
 		}
 	case models.ScrapedScene:
-		return c.postScrapeScene(ctx, v, excludeTagRE)
+		return c.postScrapeScene(ctx, v)
 	case *models.ScrapedGallery:
 		if v != nil {
-			return c.postScrapeGallery(ctx, *v, excludeTagRE)
+			return c.postScrapeGallery(ctx, *v)
 		}
 	case models.ScrapedGallery:
-		return c.postScrapeGallery(ctx, v, excludeTagRE)
+		return c.postScrapeGallery(ctx, v)
 	case *models.ScrapedImage:
 		if v != nil {
-			return c.postScrapeImage(ctx, *v, excludeTagRE)
+			return c.postScrapeImage(ctx, *v)
 		}
 	case models.ScrapedImage:
-		return c.postScrapeImage(ctx, v, excludeTagRE)
+		return c.postScrapeImage(ctx, v)
 	case *models.ScrapedMovie:
 		if v != nil {
-			return c.postScrapeMovie(ctx, *v, excludeTagRE)
+			return c.postScrapeMovie(ctx, *v, related)
 		}
 	case models.ScrapedMovie:
-		return c.postScrapeMovie(ctx, v, excludeTagRE)
+		return c.postScrapeMovie(ctx, v, related)
 	case *models.ScrapedGroup:
 		if v != nil {
-			return c.postScrapeGroup(ctx, *v, excludeTagRE)
+			return c.postScrapeGroup(ctx, *v, related)
 		}
 	case models.ScrapedGroup:
-		return c.postScrapeGroup(ctx, v, excludeTagRE)
+		return c.postScrapeGroup(ctx, v, related)
 	}
 
 	// If nothing matches, pass the content through
-	return content, nil, nil
+	return content, nil
 }
 
-// postScrapeSingle handles post-processing of a single scraped content item.
+func (c *postScraper) filterTags(tags []*models.ScrapedTag) []*models.ScrapedTag {
-// This is a convenience function that includes logging the ignored tags, as opposed to logging them in the caller.
+	var ret []*models.ScrapedTag
-func (c Cache) postScrapeSingle(ctx context.Context, content ScrapedContent) (ScrapedContent, error) {
+	var thisIgnoredTags []string
-	ret, ignoredTags, err := c.postScrape(ctx, content, c.compileExcludeTagPatterns())
+	ret, thisIgnoredTags = FilterTags(c.excludeTagRE, tags)
-	if err != nil {
+	c.ignoredTags = sliceutil.AppendUniques(c.ignoredTags, thisIgnoredTags)
-		return nil, err
+
+	return ret
 }
 
-	LogIgnoredTags(ignoredTags)
+func (c *postScraper) postScrapePerformer(ctx context.Context, p models.ScrapedPerformer, related bool) (_ ScrapedContent, err error) {
-	return ret, nil
-}
-
-func (c Cache) postScrapePerformer(ctx context.Context, p models.ScrapedPerformer, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
 	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
 	tqb := r.TagFinder
 
 	tags, err := postProcessTags(ctx, tqb, p.Tags)
 	if err != nil {
-			return err
+		return nil, err
 	}
-		p.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
 
-		return nil
+	p.Tags = c.filterTags(tags)
-	}); err != nil {
-		return nil, nil, err
-	}
 
 	// post-process - set the image if applicable
+	// don't set image for related performers to avoid excessive network calls
+	if !related {
 		if err := setPerformerImage(ctx, c.client, &p, c.globalConfig); err != nil {
 			logger.Warnf("Could not set image using URL %s: %s", *p.Image, err.Error())
 		}
+	}
 
 	p.Country = resolveCountryName(p.Country)
 
@@ -119,119 +125,224 @@ func (c Cache) postScrapePerformer(ctx context.Context, p models.ScrapedPerforme
 		}
 	}
 
-	return p, ignoredTags, nil
+	return p, nil
 }
 
-func (c Cache) postScrapeMovie(ctx context.Context, m models.ScrapedMovie, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
+func (c *postScraper) postScrapeMovie(ctx context.Context, m models.ScrapedMovie, related bool) (_ ScrapedContent, err error) {
 	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
 	tqb := r.TagFinder
 	tags, err := postProcessTags(ctx, tqb, m.Tags)
-		if err != nil {
-			return err
-		}
-		m.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
-
-		if m.Studio != nil {
-			if err := match.ScrapedStudio(ctx, r.StudioFinder, m.Studio, ""); err != nil {
-				return err
-			}
-		}
-
-		return nil
-	}); err != nil {
-		return nil, nil, err
-	}
-
-	// populate URL/URLs
-	// if URLs are provided, only use those
-	if len(m.URLs) > 0 {
-		m.URL = &m.URLs[0]
-	} else {
-		urls := []string{}
-		if m.URL != nil {
-			urls = append(urls, *m.URL)
-		}
-
-		if len(urls) > 0 {
-			m.URLs = urls
-		}
-	}
-
-	// post-process - set the image if applicable
-	if err := setMovieFrontImage(ctx, c.client, &m, c.globalConfig); err != nil {
-		logger.Warnf("could not set front image using URL %s: %v", *m.FrontImage, err)
-	}
-	if err := setMovieBackImage(ctx, c.client, &m, c.globalConfig); err != nil {
-		logger.Warnf("could not set back image using URL %s: %v", *m.BackImage, err)
-	}
-
-	return m, ignoredTags, nil
-}
-
-func (c Cache) postScrapeGroup(ctx context.Context, m models.ScrapedGroup, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
-	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
-		tqb := r.TagFinder
-		tags, err := postProcessTags(ctx, tqb, m.Tags)
-		if err != nil {
-			return err
-		}
-		m.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
-
-		if m.Studio != nil {
-			if err := match.ScrapedStudio(ctx, r.StudioFinder, m.Studio, ""); err != nil {
-				return err
-			}
-		}
-
-		return nil
-	}); err != nil {
-		return nil, nil, err
-	}
-
-	// populate URL/URLs
-	// if URLs are provided, only use those
-	if len(m.URLs) > 0 {
-		m.URL = &m.URLs[0]
-	} else {
-		urls := []string{}
-		if m.URL != nil {
-			urls = append(urls, *m.URL)
-		}
-
-		if len(urls) > 0 {
-			m.URLs = urls
-		}
-	}
-
-	// post-process - set the image if applicable
-	if err := setGroupFrontImage(ctx, c.client, &m, c.globalConfig); err != nil {
-		logger.Warnf("could not set front image using URL %s: %v", *m.FrontImage, err)
-	}
-	if err := setGroupBackImage(ctx, c.client, &m, c.globalConfig); err != nil {
-		logger.Warnf("could not set back image using URL %s: %v", *m.BackImage, err)
-	}
-
-	return m, ignoredTags, nil
-}
-
-func (c Cache) postScrapeScenePerformer(ctx context.Context, p models.ScrapedPerformer, excludeTagRE []*regexp.Regexp) (ignoredTags []string, err error) {
-	tqb := c.repository.TagFinder
-
-	tags, err := postProcessTags(ctx, tqb, p.Tags)
 	if err != nil {
 		return nil, err
 	}
-	p.Tags = tags
+	m.Tags = c.filterTags(tags)
-	p.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
 
-	p.Country = resolveCountryName(p.Country)
+	if m.Studio != nil {
-
+		if err := match.ScrapedStudio(ctx, r.StudioFinder, m.Studio, ""); err != nil {
-	return ignoredTags, nil
+			return nil, err
+		}
 	}
 
-func (c Cache) postScrapeScene(ctx context.Context, scene models.ScrapedScene, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
+	// populate URL/URLs
+	// if URLs are provided, only use those
+	if len(m.URLs) > 0 {
+		m.URL = &m.URLs[0]
+	} else {
+		urls := []string{}
+		if m.URL != nil {
+			urls = append(urls, *m.URL)
+		}
+
+		if len(urls) > 0 {
+			m.URLs = urls
+		}
+	}
+
+	// post-process - set the image if applicable
+	// don't set images for related movies to avoid excessive network calls
+	if !related {
+		if err := processImageField(ctx, m.FrontImage, c.client, c.globalConfig); err != nil {
+			logger.Warnf("could not set front image using URL %s: %v", *m.FrontImage, err)
+		}
+		if err := processImageField(ctx, m.BackImage, c.client, c.globalConfig); err != nil {
+			logger.Warnf("could not set back image using URL %s: %v", *m.BackImage, err)
+		}
+	}
+
+	return m, nil
+}
+
+func (c *postScraper) postScrapeGroup(ctx context.Context, m models.ScrapedGroup, related bool) (_ ScrapedContent, err error) {
+	r := c.repository
+	tqb := r.TagFinder
+	tags, err := postProcessTags(ctx, tqb, m.Tags)
+	if err != nil {
+		return nil, err
+	}
+	m.Tags = c.filterTags(tags)
+
+	if m.Studio != nil {
+		if err := match.ScrapedStudio(ctx, r.StudioFinder, m.Studio, ""); err != nil {
+			return nil, err
+		}
+	}
+
+	// populate URL/URLs
+	// if URLs are provided, only use those
+	if len(m.URLs) > 0 {
+		m.URL = &m.URLs[0]
+	} else {
+		urls := []string{}
+		if m.URL != nil {
+			urls = append(urls, *m.URL)
+		}
+
+		if len(urls) > 0 {
+			m.URLs = urls
+		}
+	}
+
+	// post-process - set the image if applicable
+	// don't set images for related groups to avoid excessive network calls
+	if !related {
+		if err := processImageField(ctx, m.FrontImage, c.client, c.globalConfig); err != nil {
+			logger.Warnf("could not set front image using URL %s: %v", *m.FrontImage, err)
+		}
+		if err := processImageField(ctx, m.BackImage, c.client, c.globalConfig); err != nil {
+			logger.Warnf("could not set back image using URL %s: %v", *m.BackImage, err)
+		}
+	}
+
+	return m, nil
+}
+
+// postScrapeRelatedPerformers post-processes a list of performers.
+// It modifies the performers in place.
+func (c *postScraper) postScrapeRelatedPerformers(ctx context.Context, items []*models.ScrapedPerformer) error {
+	for _, p := range items {
+		if p == nil {
+			continue
+		}
+
+		const related = true
+		sc, err := c.postScrapePerformer(ctx, *p, related)
+		if err != nil {
+			return err
+		}
+		newP := sc.(models.ScrapedPerformer)
+		*p = newP
+
+		if err := match.ScrapedPerformer(ctx, c.repository.PerformerFinder, p, ""); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *postScraper) postScrapeRelatedMovies(ctx context.Context, items []*models.ScrapedMovie) error {
+	for _, p := range items {
+		const related = true
+		sc, err := c.postScrapeMovie(ctx, *p, related)
+		if err != nil {
+			return err
+		}
+		newP := sc.(models.ScrapedMovie)
+		*p = newP
+
+		matchedID, err := match.ScrapedGroup(ctx, c.repository.GroupFinder, p.StoredID, p.Name)
+		if err != nil {
+			return err
+		}
+
+		if matchedID != nil {
+			p.StoredID = matchedID
+		}
+	}
+
+	return nil
+}
+
+func (c *postScraper) postScrapeRelatedGroups(ctx context.Context, items []*models.ScrapedGroup) error {
+	for _, p := range items {
+		const related = true
+		sc, err := c.postScrapeGroup(ctx, *p, related)
+		if err != nil {
+			return err
+		}
+		newP := sc.(models.ScrapedGroup)
+		*p = newP
+
+		matchedID, err := match.ScrapedGroup(ctx, c.repository.GroupFinder, p.StoredID, p.Name)
+		if err != nil {
+			return err
+		}
+
+		if matchedID != nil {
+			p.StoredID = matchedID
+		}
+	}
+
+	return nil
+}
+
+func (c *postScraper) postScrapeStudio(ctx context.Context, s models.ScrapedStudio, related bool) (_ ScrapedContent, err error) {
+	r := c.repository
+	tqb := r.TagFinder
+
+	tags, err := postProcessTags(ctx, tqb, s.Tags)
+	if err != nil {
+		return nil, err
+	}
+
+	s.Tags = c.filterTags(tags)
+
+	// post-process - set the image if applicable
+	// don't set image for related studios to avoid excessive network calls
+	if !related {
+		if err := setStudioImage(ctx, c.client, &s, c.globalConfig); err != nil {
+			logger.Warnf("Could not set image using URL %s: %s", *s.Image, err.Error())
+		}
+	}
+
+	// populate URL/URLs
+	// if URLs are provided, only use those
+	if len(s.URLs) > 0 {
+		s.URL = &s.URLs[0]
+	} else {
+		urls := []string{}
+		if s.URL != nil {
+			urls = append(urls, *s.URL)
+		}
+
+		if len(urls) > 0 {
+			s.URLs = urls
+		}
+	}
+
+	return s, nil
+}
+
+func (c *postScraper) postScrapeRelatedStudio(ctx context.Context, s *models.ScrapedStudio) error {
+	if s == nil {
+		return nil
+	}
+
+	const related = true
+	sc, err := c.postScrapeStudio(ctx, *s, related)
+	if err != nil {
+		return err
+	}
+	newS := sc.(models.ScrapedStudio)
+	*s = newS
+
+	if err = match.ScrapedStudio(ctx, c.repository.StudioFinder, s, ""); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *postScraper) postScrapeScene(ctx context.Context, scene models.ScrapedScene) (_ ScrapedContent, err error) {
 	// set the URL/URLs field
 	if scene.URL == nil && len(scene.URLs) > 0 {
 		scene.URL = &scene.URLs[0]
@@ -241,49 +352,18 @@ func (c Cache) postScrapeScene(ctx context.Context, scene models.ScrapedScene, e
 	}
 
 	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
-		pqb := r.PerformerFinder
-		gqb := r.GroupFinder
 	tqb := r.TagFinder
-		sqb := r.StudioFinder
 
-		for _, p := range scene.Performers {
+	if err = c.postScrapeRelatedPerformers(ctx, scene.Performers); err != nil {
-			if p == nil {
+		return nil, err
-				continue
 	}
 
-			thisIgnoredTags, err := c.postScrapeScenePerformer(ctx, *p, excludeTagRE)
+	if err = c.postScrapeRelatedMovies(ctx, scene.Movies); err != nil {
-			if err != nil {
+		return nil, err
-				return err
 	}
 
-			if err := match.ScrapedPerformer(ctx, pqb, p, ""); err != nil {
+	if err = c.postScrapeRelatedGroups(ctx, scene.Groups); err != nil {
-				return err
+		return nil, err
-			}
-
-			ignoredTags = sliceutil.AppendUniques(ignoredTags, thisIgnoredTags)
-		}
-
-		for _, p := range scene.Movies {
-			matchedID, err := match.ScrapedGroup(ctx, gqb, p.StoredID, p.Name)
-			if err != nil {
-				return err
-			}
-
-			if matchedID != nil {
-				p.StoredID = matchedID
-			}
-		}
-
-		for _, p := range scene.Groups {
-			matchedID, err := match.ScrapedGroup(ctx, gqb, p.StoredID, p.Name)
-			if err != nil {
-				return err
-			}
-
-			if matchedID != nil {
-				p.StoredID = matchedID
-			}
 	}
 
 	// HACK - if movies was returned but not groups, add the groups from the movies
@@ -302,31 +382,23 @@ func (c Cache) postScrapeScene(ctx context.Context, scene models.ScrapedScene, e
 
 	tags, err := postProcessTags(ctx, tqb, scene.Tags)
 	if err != nil {
-			return err
+		return nil, err
 	}
-		scene.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
+	scene.Tags = c.filterTags(tags)
 
-		if scene.Studio != nil {
+	if err := c.postScrapeRelatedStudio(ctx, scene.Studio); err != nil {
-			err := match.ScrapedStudio(ctx, sqb, scene.Studio, "")
+		return nil, err
-			if err != nil {
-				return err
-			}
-		}
-
-		return nil
-	}); err != nil {
-		return nil, nil, err
 	}
 
 	// post-process - set the image if applicable
-	if err := setSceneImage(ctx, c.client, &scene, c.globalConfig); err != nil {
+	if err := processImageField(ctx, scene.Image, c.client, c.globalConfig); err != nil {
 		logger.Warnf("Could not set image using URL %s: %v", *scene.Image, err)
 	}
 
-	return scene, ignoredTags, nil
+	return scene, nil
 }
 
-func (c Cache) postScrapeGallery(ctx context.Context, g models.ScrapedGallery, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
+func (c *postScraper) postScrapeGallery(ctx context.Context, g models.ScrapedGallery) (_ ScrapedContent, err error) {
 	// set the URL/URLs field
 	if g.URL == nil && len(g.URLs) > 0 {
 		g.URL = &g.URLs[0]
@@ -336,70 +408,65 @@ func (c Cache) postScrapeGallery(ctx context.Context, g models.ScrapedGallery, e
 	}
 
 	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
-		pqb := r.PerformerFinder
 	tqb := r.TagFinder
-		sqb := r.StudioFinder
 
-		for _, p := range g.Performers {
+	if err = c.postScrapeRelatedPerformers(ctx, g.Performers); err != nil {
-			err := match.ScrapedPerformer(ctx, pqb, p, "")
+		return nil, err
-			if err != nil {
-				return err
-			}
 	}
 
 	tags, err := postProcessTags(ctx, tqb, g.Tags)
 	if err != nil {
-			return err
+		return nil, err
 	}
-		g.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
+	g.Tags = c.filterTags(tags)
 
-		if g.Studio != nil {
+	if err := c.postScrapeRelatedStudio(ctx, g.Studio); err != nil {
-			err := match.ScrapedStudio(ctx, sqb, g.Studio, "")
+		return nil, err
-			if err != nil {
-				return err
-			}
 	}
 
-		return nil
+	return g, nil
-	}); err != nil {
-		return nil, nil, err
 }
 
-	return g, ignoredTags, nil
+func (c *postScraper) postScrapeImage(ctx context.Context, image models.ScrapedImage) (_ ScrapedContent, err error) {
-}
-
-func (c Cache) postScrapeImage(ctx context.Context, image models.ScrapedImage, excludeTagRE []*regexp.Regexp) (_ ScrapedContent, ignoredTags []string, err error) {
 	r := c.repository
-	if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
-		pqb := r.PerformerFinder
 	tqb := r.TagFinder
-		sqb := r.StudioFinder
 
-		for _, p := range image.Performers {
+	if err = c.postScrapeRelatedPerformers(ctx, image.Performers); err != nil {
-			if err := match.ScrapedPerformer(ctx, pqb, p, ""); err != nil {
+		return nil, err
-				return err
-			}
 	}
 
 	tags, err := postProcessTags(ctx, tqb, image.Tags)
 	if err != nil {
-			return err
+		return nil, err
 	}
 
-		image.Tags, ignoredTags = FilterTags(excludeTagRE, tags)
+	image.Tags = c.filterTags(tags)
 
-		if image.Studio != nil {
+	if err := c.postScrapeRelatedStudio(ctx, image.Studio); err != nil {
-			err := match.ScrapedStudio(ctx, sqb, image.Studio, "")
+		return nil, err
+	}
+
+	return image, nil
+}
+
+// postScrapeSingle handles post-processing of a single scraped content item.
+// This is a convenience function that includes logging the ignored tags, as opposed to logging them in the caller.
+func (c Cache) postScrapeSingle(ctx context.Context, content ScrapedContent) (ret ScrapedContent, err error) {
+	pp := postScraper{
+		Cache:        c,
+		excludeTagRE: c.compileExcludeTagPatterns(),
+	}
+
+	if err := c.repository.WithReadTxn(ctx, func(ctx context.Context) error {
+		ret, err = pp.postScrape(ctx, content)
 		if err != nil {
 			return err
 		}
-		}
-
 		return nil
 	}); err != nil {
-		return nil, nil, err
+		return nil, err
 	}
 
-	return image, ignoredTags, nil
+	LogIgnoredTags(pp.ignoredTags)
+	return ret, nil
 }