Add the dependency container

cmd/container.go

@@ -0,0 +1,40 @@
+package cmd
+
+import (
+	"log"
+	"os"
+
+	"github.com/mickael-menu/zk/adapter/handlebars"
+	"github.com/mickael-menu/zk/core/zk"
+	"github.com/mickael-menu/zk/util"
+	"github.com/mickael-menu/zk/util/date"
+)
+
+type Container struct {
+	Zk       *zk.Zk
+	Date     date.Provider
+	Logger   util.Logger
+	renderer *handlebars.HandlebarsRenderer
+}
+
+func NewContainer() *Container {
+	zk, _ := zk.Open(".")
+	date := date.NewFrozenNow()
+
+	return &Container{
+		Zk:     zk,
+		Logger: log.New(os.Stderr, "zk: warning: ", 0),
+		// zk is short-lived, so we freeze the current date to use the same
+		// date for any rendering during the execution.
+		Date: &date,
+	}
+}
+
+func (c *Container) Renderer() *handlebars.HandlebarsRenderer {
+	if c.renderer == nil {
+		// FIXME take the language from the config
+		handlebars.Init("en", c.Logger, c.Date)
+		c.renderer = handlebars.NewRenderer()
+	}
+	return c.renderer
+}

main.go

@@ -1,13 +1,8 @@
 package main
 
 import (
-	"log"
-	"os"
-
 	"github.com/alecthomas/kong"
-	"github.com/mickael-menu/zk/adapter/handlebars"
 	"github.com/mickael-menu/zk/cmd"
-	"github.com/mickael-menu/zk/util/date"
 )
 
 var cli struct {
@@ -16,16 +11,10 @@ var cli struct {
 }
 
 func main() {
-	logger := log.New(os.Stderr, "zk: warning: ", 0)
-	// zk is short-lived, so we freeze the current date to use the same date
-	// for any rendering during the execution.
-	date := date.NewFrozenNow()
-	// FIXME take the language from the config
-	handlebars.Init("en", logger, &date)
+	// Create the dependency graph.
+	container := cmd.NewContainer()
 
-	ctx := kong.Parse(&cli,
-		kong.Name("zk"),
-	)
-	err := ctx.Run()
+	ctx := kong.Parse(&cli, kong.Name("zk"))
+	err := ctx.Run(container)
 	ctx.FatalIfErrorf(err)
 }