mugit @ 56ad3f8dd0ac999a121a4f92b7cbdfede58666c8

M internal/config/config.go

@@ -50,6 +50,7 @@
 type CacheConfig struct {
 	HomePage time.Duration `yaml:"home_page"`
 	Readme   time.Duration `yaml:"readme"`
+	Diff     time.Duration `yaml:"duration"`
 }
 
 type Config struct {
@@ -156,6 +157,10 @@ }
 
 	if c.Cache.Readme == 0 {
 		c.Cache.Readme = 1 * time.Minute
+	}
+
+	if c.Cache.Diff == 0 {
+		c.Cache.Diff = 15 * time.Minute
 	}
 }
 

M internal/handlers/handlers.go

@@ -9,6 +9,7 @@ "time"
 
 	"olexsmir.xyz/mugit/internal/cache"
 	"olexsmir.xyz/mugit/internal/config"
+	"olexsmir.xyz/mugit/internal/git"
 	"olexsmir.xyz/mugit/internal/humanize"
 	"olexsmir.xyz/mugit/web"
 )
@@ -19,6 +20,7 @@ t *template.Template
 
 	repoListCache cache.Cacher[[]repoList]
 	readmeCache   cache.Cacher[template.HTML]
+	diffCache     cache.Cacher[*git.NiceDiff]
 }
 
 func InitRoutes(cfg *config.Config) http.Handler {
@@ -29,6 +31,7 @@ h := handlers{
 		cfg, tmpls,
 		cache.NewInMemory[[]repoList](cfg.Cache.HomePage),
 		cache.NewInMemory[template.HTML](cfg.Cache.Readme),
+		cache.NewInMemory[*git.NiceDiff](cfg.Cache.Diff),
 	}
 
 	mux := http.NewServeMux()

M internal/handlers/repo.go

@@ -288,7 +288,7 @@ h.write404(w, err)
 		return
 	}
 
-	diff, err := repo.Diff()
+	diff, err := h.getDiff(repo, ref)
 	if err != nil {
 		h.write500(w, err)
 		return
@@ -431,6 +431,21 @@ })
 
 	h.repoListCache.Set("repo_list", repos)
 	return repos, errors.Join(errs...)
+}
+
+func (h handlers) getDiff(r *git.Repo, ref string) (*git.NiceDiff, error) {
+	cacheKey := fmt.Sprintf("%s:%s", r.Name(), ref)
+	if v, found := h.diffCache.Get(cacheKey); found {
+		return v, nil
+	}
+
+	diff, err := r.Diff()
+	if err != nil {
+		return nil, err
+	}
+
+	h.diffCache.Set(cacheKey, diff)
+	return diff, nil
 }
 
 var markdown = goldmark.New(