⚙️ Add ability to build from Dockerfiles directly

pkg/tree/dockerfile_parser.go

@@ -0,0 +1,62 @@
+// Copyright © 2022 Ettore Di Giacinto <mudler@luet.io>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, see <http://www.gnu.org/licenses/>.
+
+package tree
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/mudler/luet/pkg/api/core/types"
+	"github.com/pkg/errors"
+)
+
+func RuntimeDockerfileParser(srcDir, currentpath, name string, templates []string, db types.PackageDatabase) error {
+	if !strings.Contains(name, "Dockerfile") {
+		return nil
+	}
+
+	// Path is set only internally when tree is loaded from disk
+	_, err := db.CreatePackage(&types.Package{Name: filepath.Base(filepath.Dir(currentpath)), Path: filepath.Dir(currentpath), TreeDir: srcDir})
+	if err != nil {
+		return errors.Wrap(err, "Error creating package "+currentpath)
+	}
+	return nil
+}
+
+func BuildDockerfileParser(srcDir, currentpath, name string, templates []string, db types.PackageDatabase) error {
+	if !strings.Contains(name, "Dockerfile") {
+		return nil
+	}
+
+	// Simply imply the name package from the directory name
+	// TODO: Read specific labels from dockerfile as we do read the image already
+	p := &types.Package{
+		Name:    filepath.Base(filepath.Dir(currentpath)),
+		Path:    filepath.Dir(currentpath),
+		TreeDir: srcDir}
+
+	err := p.SetOriginalDockerfile(currentpath)
+	if err != nil {
+		return errors.Wrap(err, "Error reading file "+currentpath)
+	}
+
+	// Path is set only internally when tree is loaded from disk
+	_, err = db.CreatePackage(p)
+	if err != nil {
+		return errors.Wrap(err, "Error creating package "+currentpath)
+	}
+	return nil
+}