Up to v2.6.0

    ====
    - [=] [Bootstrap](https://getbootstrap.com/docs/4.4/) updated from 3.4.1 to 4.4.1
    - [=] [Bootstrap Menu](https://github.com/cryol/bootstrap-menu) fork and refactoring
    - [=] [Datatables](https://datatables.net/) change bs to bs4 v1.10.20
    - [=] Rewrite templates to bs4.
    - [=] Rewrite compiler - CDN/NON-CDN exclude to assets.part/assets.cdn.part.

.gitattributes

@@ -1,9 +1,9 @@
-ifm.php			-diff
-ifm.min.php		-diff
-build/*			-diff
+dist/ifm.php        -diff
+dist/ifm.min.php    -diff
+dist/*              -diff
 src/includes/ace.js	-diff
 
-src			export-ignore
-compiler.php		export-ignore
+src             export-ignore
+compiler.php    export-ignore
 .gitignore		export-ignore
-.gitattributes		export-ignore
+.gitattributes  export-ignore

.gitignore

@@ -2,4 +2,5 @@
 *.zip
 misc
 src/includes/ace/*
-sftp-config.json
+sftp-config.json
+dist/*

compiler.php

@@ -10,20 +10,20 @@
 
 // output files and common attrs
 define( "IFM_CDN",           true );
-define( "IFM_VERSION",       "v2.5.2" );
+define( "IFM_VERSION",       "v2.6.0" );
 define( "IFM_STANDALONE",    "dist/ifm.php" );
 define( "IFM_STANDALONE_GZ", "dist/ifm.min.php" );
 define( "IFM_LIB",           "dist/libifm.php" );
 
 if( IFM_CDN ){
-	$main_src = "src/main.cdn.php";
+	$IFM_ASSETS = "src/assets.cdn.part";
 } else {
-	$main_src = "src/main.php";
+	$IFM_ASSETS = "src/assets.part";
 }
 
 // php source files
 $IFM_SRC_PHP = array(
-	0 => $main_src,
+	0 => "src/main.php",
 	1 => "src/ifmarchive.php",
 	2 => "src/htpasswd.php"
 );
@@ -56,7 +56,7 @@
 	$compiled = array_merge( $compiled, $lines );
 }
 $compiled = join( $compiled );
-
+$compiled = str_replace( "IFM_ASSETS", file_get_contents( $IFM_ASSETS ), $compiled );
 /**
  * Process file includes
  */

src/assets.cdn.part

@@ -0,0 +1,32 @@
+    public function getCSS() {
+        print '
+            <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
+            <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/bs4/dt-1.10.20/datatables.min.css"/>
+            <style type="text/css">';?> @@@file:src/includes/bootstrap-treeview.min.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/fontello-embedded.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/animation.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/style.css@@@ <?php print '</style>
+        ';
+    }
+
+    public function getJS() {
+        print '
+            <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
+            <script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
+            <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
+            <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
+            <script type="text/javascript" src="https://cdn.datatables.net/v/bs4/dt-1.10.20/datatables.min.js"></script>
+            <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.8/ace.js"></script>
+            <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mustache.js/2.3.2/mustache.min.js"></script>
+            <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mouse0270-bootstrap-notify/3.1.7/bootstrap-notify.min.js"></script>
+            <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>
+            <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/classnames/2.2.6/index.min.js"></script> 
+        ';
+        echo <<<'f00bar'
+        <script>
+                    @@@file:src/includes/bootstrap-treeview.min.js@@@
+                    @@@file:src/includes/BootstrapMenu.min.js@@@
+                    @@@file:src/ifm.js@@@
+        </script>
+f00bar;
+    }

src/assets.part

@@ -0,0 +1,31 @@
+    public function getCSS() {
+        print '
+            <style type="text/css">';?> @@@file:src/includes/bootstrap.min.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/bootstrap-treeview.min.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/datatables.min.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/fontello-embedded.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/includes/animation.css@@@ <?php print '</style>
+            <style type="text/css">';?> @@@file:src/style.css@@@ <?php print '</style>
+        ';
+    }
+
+    public function getJS() {
+        echo <<<'f00bar'
+<script>
+            @@@file:src/includes/jquery.min.js@@@
+            @@@file:src/includes/jquery.ui.min.js@@@
+            @@@file:src/includes/popper.min.js@@@
+            @@@file:src/includes/bootstrap.min.js@@@
+            @@@file:src/includes/bootstrap-notify.min.js@@@
+            @@@file:src/includes/bootstrap-treeview.min.js@@@
+            @@@file:src/includes/datatables.min.js@@@
+            @@@file:src/includes/lodash.min.js@@@
+            @@@file:src/includes/classnames.js@@@
+            @@@file:src/includes/BootstrapMenu.min.js@@@
+            @@@file:src/includes/mustache.min.js@@@
+            @@@file:src/includes/ace.js@@@
+            @@@acedir:src/includes/ace@@@
+            @@@file:src/ifm.js@@@
+</script>
+f00bar;
+    }