plugins: Introduce generated, static core plugin registry (#54118)

* Refactor towards template/codegen framework * Add templates for plugin gen * Add Go codegen for plugins; overhaul framework, too * Add new codegen output; assorted framework fixes * Regenerate after merge * Remove accidental commit file, update templates * Export the pfs.Tree loader from plugin types * Print details from cuetsy errors * Generate loaders for all plugins and list in registry * Use pfs_gen.go over lineage_gen.go * Un-un-ignore main file * Introduce simple List static registry for plugins * Last tweaks to codegen * remove unused tvars * Ensure loop-local instances for both vars * Generate pfs parsing in-place in registry * Stop generating pfs_gen.go * Move Tree into pfs, rename subdir * Change package name to match dir * Ignore gocyclo on HTTPServer.getNavTree
2022-09-14 10:15:09 -04:00
parent c69a37f8c2
commit ced53a8dc2
36 changed files with 1114 additions and 324 deletions
@@ -0,0 +1,65 @@
+package codegen
+
+import (
+	"embed"
+	"text/template"
+	"time"
+)
+
+// All the parsed templates in the tmpl subdirectory
+var tmpls *template.Template
+
+func init() {
+	base := template.New("codegen").Funcs(template.FuncMap{
+		"now": time.Now,
+	})
+	tmpls = template.Must(base.ParseFS(tmplFS, "tmpl/*.tmpl"))
+}
+
+//go:embed tmpl/*.tmpl
+var tmplFS embed.FS
+
+// The following group of types, beginning with tvars_*, all contain the set
+// of variables expected by the corresponding named template file under tmpl/
+type (
+	tvars_autogen_header struct {
+		GeneratorPath  string
+		LineagePath    string
+		LineageCUEPath string
+		GenLicense     bool
+	}
+	tvars_coremodel_registry struct {
+		Header     tvars_autogen_header
+		Coremodels []tplVars
+	}
+	tvars_coremodel_imports struct {
+		PackageName string
+	}
+	tvars_plugin_lineage_binding struct {
+		SlotName               string
+		LatestMajv, LatestMinv uint
+	}
+	tvars_plugin_lineage_file struct {
+		PackageName string
+		PluginID    string
+		PluginType  string
+		HasModels   bool
+		RootCUE     bool
+		SlotImpls   []tvars_plugin_lineage_binding
+		Header      tvars_autogen_header
+	}
+	tvars_cuetsy_multi struct {
+		Header   tvars_autogen_header
+		Imports  []*tsImport
+		Sections []tsSection
+	}
+	tvars_plugin_registry struct {
+		Header  tvars_autogen_header
+		Plugins []struct {
+			PkgName    string
+			Path       string
+			ImportPath string
+			NoAlias    bool
+		}
+	}
+)