diff --git a/cmd/main.go b/cmd/main.go
index 1942f8b..1748e60 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -22,6 +22,9 @@
 
 package main
 
-func main() {
+import "github.com/FooSoft/goldsmith"
 
+func main() {
+	gs := goldsmith.NewGoldsmith("", "")
+	gs.Use(nil)
 }
diff --git a/core.go b/core.go
new file mode 100644
index 0000000..83c5db0
--- /dev/null
+++ b/core.go
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package goldsmith
+
+import (
+	"path/filepath"
+
+	"github.com/bmatcuk/doublestar"
+)
+
+type goldsmith struct {
+	Context
+
+	files []File
+}
+
+func NewGoldsmith(srcPath, dstPath string) (Applier, error) {
+	gs := &goldsmith{Context: Context{srcPath, dstPath}}
+	if err := gs.scan(); err != nil {
+		return nil, err
+	}
+
+	return gs, nil
+}
+
+func (gs *goldsmith) scan() error {
+	matches, err := doublestar.Glob(filepath.Join(gs.srcPath, "**"))
+	if err != nil {
+		return err
+	}
+
+	for _, match := range matches {
+		path, err := filepath.Rel(gs.srcPath, match)
+		if err != nil {
+			return err
+		}
+
+		file := File{path, make(map[string]interface{})}
+		gs.files = append(gs.files, file)
+	}
+
+	return nil
+}
+
+func (gs *goldsmith) ApplyAll(p Processor) Applier {
+	return gs.Apply(p, "*")
+}
+
+func (gs *goldsmith) Apply(p Processor, pattern string) Applier {
+	inputFiles := make(chan File)
+	outputFiles := make(chan File)
+
+	for _, file := range gs.files {
+		if matched, _ := doublestar.Match(pattern, file.Path); matched {
+			inputFiles <- file
+		}
+	}
+
+	p.ProcessFiles(inputFiles, outputFiles)
+	return gs
+}
diff --git a/goldsmith.go b/goldsmith.go
new file mode 100644
index 0000000..dab6f4d
--- /dev/null
+++ b/goldsmith.go
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package goldsmith
+
+type Context struct {
+	srcPath, dstPath string
+}
+
+type File struct {
+	Path string
+	Meta map[string]interface{}
+}
+
+type Processor interface {
+	ProcessFiles(inputFiles chan File, outputFiles chan File) error
+}
+
+type Applier interface {
+	ApplyAll(p Processor) Applier
+	Apply(p Processor, pattern string) Applier
+}