start adopting cmds3.0 - lots of errors!

- move go-ipfs-cmds/legacy to go-ipfs/commands/legacy
- update cmds,cmdkit; go test ./... ok

License: MIT
Signed-off-by: keks <keks@cryptoscope.co>

core/commands/env.go

@@ -0,0 +1,27 @@
+package commands
+
+import (
+	"fmt"
+
+	"github.com/ipfs/go-ipfs/commands"
+	"github.com/ipfs/go-ipfs/core"
+	"github.com/ipfs/go-ipfs/repo/config"
+)
+
+func GetNode(env interface{}) (*core.IpfsNode, error) {
+	ctx, ok := env.(*commands.Context)
+	if !ok {
+		return nil, fmt.Errorf("expected env to be of type %T, got %T", ctx, env)
+	}
+
+	return ctx.GetNode()
+}
+
+func GetConfig(env interface{}) (*config.Config, error) {
+	ctx, ok := env.(*commands.Context)
+	if !ok {
+		return nil, fmt.Errorf("expected env to be of type %T, got %T", ctx, env)
+	}
+
+	return ctx.GetConfig()
+}