1 files changed, 117 insertions, 0 deletions
diff --git a/js/misc/fileUtils.js b/js/misc/fileUtils.js
new file mode 100644
index 0000000..2f1798b
--- /dev/null
+++ b/js/misc/fileUtils.js
@@ -0,0 +1,117 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported collectFromDatadirs, recursivelyDeleteDir,
+            recursivelyMoveDir, loadInterfaceXML, loadSubInterfaceXML */
+
+const { Gio, GLib } = imports.gi;
+const Config = imports.misc.config;
+
+function collectFromDatadirs(subdir, includeUserDir, processFile) {
+    let dataDirs = GLib.get_system_data_dirs();
+    if (includeUserDir)
+        dataDirs.unshift(GLib.get_user_data_dir());
+
+    for (let i = 0; i < dataDirs.length; i++) {
+        let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', subdir]);
+        let dir = Gio.File.new_for_path(path);
+
+        let fileEnum;
+        try {
+            fileEnum = dir.enumerate_children('standard::name,standard::type',
+                                              Gio.FileQueryInfoFlags.NONE, null);
+        } catch (e) {
+            fileEnum = null;
+        }
+        if (fileEnum != null) {
+            let info;
+            while ((info = fileEnum.next_file(null)))
+                processFile(fileEnum.get_child(info), info);
+        }
+    }
+}
+
+function recursivelyDeleteDir(dir, deleteParent) {
+    let children = dir.enumerate_children('standard::name,standard::type',
+                                          Gio.FileQueryInfoFlags.NONE, null);
+
+    let info;
+    while ((info = children.next_file(null)) != null) {
+        let type = info.get_file_type();
+        let child = dir.get_child(info.get_name());
+        if (type == Gio.FileType.REGULAR)
+            child.delete(null);
+        else if (type == Gio.FileType.DIRECTORY)
+            recursivelyDeleteDir(child, true);
+    }
+
+    if (deleteParent)
+        dir.delete(null);
+}
+
+function recursivelyMoveDir(srcDir, destDir) {
+    let children = srcDir.enumerate_children('standard::name,standard::type',
+                                             Gio.FileQueryInfoFlags.NONE, null);
+
+    if (!destDir.query_exists(null))
+        destDir.make_directory_with_parents(null);
+
+    let info;
+    while ((info = children.next_file(null)) != null) {
+        let type = info.get_file_type();
+        let srcChild = srcDir.get_child(info.get_name());
+        let destChild = destDir.get_child(info.get_name());
+        if (type == Gio.FileType.REGULAR)
+            srcChild.move(destChild, Gio.FileCopyFlags.NONE, null, null);
+        else if (type == Gio.FileType.DIRECTORY)
+            recursivelyMoveDir(srcChild, destChild);
+    }
+}
+
+let _ifaceResource = null;
+function ensureIfaceResource() {
+    if (_ifaceResource)
+        return;
+
+    // don't use global.datadir so the method is usable from tests/tools
+    let dir = GLib.getenv('GNOME_SHELL_DATADIR') || Config.PKGDATADIR;
+    let path = `${dir}/gnome-shell-dbus-interfaces.gresource`;
+    _ifaceResource = Gio.Resource.load(path);
+    _ifaceResource._register();
+}
+
+function loadInterfaceXML(iface) {
+    ensureIfaceResource();
+
+    let uri = `resource:///org/gnome/shell/dbus-interfaces/${iface}.xml`;
+    let f = Gio.File.new_for_uri(uri);
+
+    try {
+        let [ok_, bytes] = f.load_contents(null);
+        return imports.byteArray.toString(bytes);
+    } catch (e) {
+        log(`Failed to load D-Bus interface ${iface}`);
+    }
+
+    return null;
+}
+
+function loadSubInterfaceXML(iface, ifaceFile) {
+    let xml = loadInterfaceXML(ifaceFile);
+    if (!xml)
+        return null;
+
+    let ifaceStartTag = `<interface name="${iface}">`;
+    let ifaceStopTag = '</interface>';
+    let ifaceStartIndex = xml.indexOf(ifaceStartTag);
+    let ifaceEndIndex = xml.indexOf(ifaceStopTag, ifaceStartIndex + 1) + ifaceStopTag.length;
+
+    let xmlHeader = '<!DOCTYPE node PUBLIC\n' +
+        '\'-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\'\n' +
+        '\'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\'>\n' +
+        '<node>\n';
+    let xmlFooter = '</node>';
+
+    return (
+        xmlHeader +
+        xml.substr(ifaceStartIndex, ifaceEndIndex - ifaceStartIndex) +
+        xmlFooter);
+}