Add build time math rendering

See #11927

cache/filecache/filecache_config.go

@@ -46,6 +46,7 @@ const (
 	CacheKeyAssets      = "assets"
 	CacheKeyModules     = "modules"
 	CacheKeyGetResource = "getresource"
+	CacheKeyMisc        = "misc"
 )
 
 type Configs map[string]FileCacheConfig
@@ -70,10 +71,14 @@ var defaultCacheConfigs = Configs{
 		MaxAge: -1,
 		Dir:    resourcesGenDir,
 	},
-	CacheKeyGetResource: FileCacheConfig{
+	CacheKeyGetResource: {
 		MaxAge: -1, // Never expire
 		Dir:    cacheDirProject,
 	},
+	CacheKeyMisc: {
+		MaxAge: -1,
+		Dir:    cacheDirProject,
+	},
 }
 
 type FileCacheConfig struct {
@@ -120,6 +125,11 @@ func (f Caches) AssetsCache() *Cache {
 	return f[CacheKeyAssets]
 }
 
+// MiscCache gets the file cache for miscellaneous stuff.
+func (f Caches) MiscCache() *Cache {
+	return f[CacheKeyMisc]
+}
+
 // GetResourceCache gets the file cache for remote resources.
 func (f Caches) GetResourceCache() *Cache {
 	return f[CacheKeyGetResource]

cache/filecache/filecache_config_test.go

@@ -59,7 +59,7 @@ dir = "/path/to/c4"
 	c.Assert(err, qt.IsNil)
 	fs := afero.NewMemMapFs()
 	decoded := testconfig.GetTestConfigs(fs, cfg).Base.Caches
-	c.Assert(len(decoded), qt.Equals, 6)
+	c.Assert(len(decoded), qt.Equals, 7)
 
 	c2 := decoded["getcsv"]
 	c.Assert(c2.MaxAge.String(), qt.Equals, "11h0m0s")
@@ -106,7 +106,7 @@ dir = "/path/to/c4"
 	c.Assert(err, qt.IsNil)
 	fs := afero.NewMemMapFs()
 	decoded := testconfig.GetTestConfigs(fs, cfg).Base.Caches
-	c.Assert(len(decoded), qt.Equals, 6)
+	c.Assert(len(decoded), qt.Equals, 7)
 
 	for _, v := range decoded {
 		c.Assert(v.MaxAge, qt.Equals, time.Duration(0))
@@ -129,7 +129,7 @@ func TestDecodeConfigDefault(t *testing.T) {
 
 	fs := afero.NewMemMapFs()
 	decoded := testconfig.GetTestConfigs(fs, cfg).Base.Caches
-	c.Assert(len(decoded), qt.Equals, 6)
+	c.Assert(len(decoded), qt.Equals, 7)
 
 	imgConfig := decoded[filecache.CacheKeyImages]
 	jsonConfig := decoded[filecache.CacheKeyGetJSON]

deps/deps.go

@@ -23,6 +23,7 @@ import (
 	"github.com/gohugoio/hugo/helpers"
 	"github.com/gohugoio/hugo/hugofs"
 	"github.com/gohugoio/hugo/identity"
+	"github.com/gohugoio/hugo/internal/warpc"
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/resources/page"
 	"github.com/gohugoio/hugo/resources/postpub"
@@ -93,6 +94,10 @@ type Deps struct {
 	// This is common/global for all sites.
 	BuildState *BuildState
 
+	// Holds RPC dispatchers for Katex etc.
+	// TODO(bep) rethink this re. a plugin setup, but this will have to do for now.
+	WasmDispatchers *warpc.Dispatchers
+
 	*globalErrHandler
 }
 
@@ -343,6 +348,9 @@ func (d *Deps) Close() error {
 	if d.MemCache != nil {
 		d.MemCache.Stop()
 	}
+	if d.WasmDispatchers != nil {
+		d.WasmDispatchers.Close()
+	}
 	return d.BuildClosers.Close()
 }
 

hugolib/site_new.go

@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"html/template"
 	"os"
+	"path/filepath"
 	"sort"
 	"time"
 
@@ -34,6 +35,7 @@ import (
 	"github.com/gohugoio/hugo/hugolib/doctree"
 	"github.com/gohugoio/hugo/hugolib/pagesfromdata"
 	"github.com/gohugoio/hugo/identity"
+	"github.com/gohugoio/hugo/internal/warpc"
 	"github.com/gohugoio/hugo/langs"
 	"github.com/gohugoio/hugo/langs/i18n"
 	"github.com/gohugoio/hugo/lazy"
@@ -157,6 +159,15 @@ func NewHugoSites(cfg deps.DepsCfg) (*HugoSites, error) {
 		MemCache:            memCache,
 		TemplateProvider:    tplimpl.DefaultTemplateProvider,
 		TranslationProvider: i18n.NewTranslationProvider(),
+		WasmDispatchers: warpc.AllDispatchers(
+			warpc.Options{
+				CompilationCacheDir: filepath.Join(conf.Dirs().CacheDir, "_warpc"),
+
+				// Katex is relatively slow.
+				PoolSize: 8,
+				Infof:    logger.InfoCommand("wasm").Logf,
+			},
+		),
 	}
 
 	if err := firstSiteDeps.Init(); err != nil {