scripts/ostree-ls-big-files.js: New script to analyze repo files for size

scripts/ostree-ls-big-files.js

@@ -0,0 +1,72 @@
+#!/usr/bin/env gjs
+
+// Copyright (C) 2014 Colin Walters <walters@verbum.org>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.
+
+const Gio = imports.gi.Gio;
+const OSTree = imports.gi.OSTree;
+
+let repoPath = ARGV[0];
+let ref = ARGV[1];
+
+let cancellable = null;
+
+let repo = OSTree.Repo.new(Gio.File.new_for_path(repoPath));
+repo.open(cancellable);
+
+let [,root] = repo.read_commit(ref, cancellable);
+
+let sizes = [];
+
+function tallySizes(dir, sizes, cancellable) {
+    let e = dir.enumerate_children("standard::name,standard::type,standard::size",
+				   Gio.FileQueryInfoFlags.NOFOLLOW_SYMLINKS,
+				   cancellable);
+    let info;
+    while ((info = e.next_file (cancellable)) != null) {
+	let child = e.get_child(info);
+	let ftype = info.get_file_type();
+	if (ftype == Gio.FileType.DIRECTORY) {
+	    tallySizes(child, sizes, cancellable);
+	} else if (ftype == Gio.FileType.REGULAR) {
+	    sizes.push([child, info.get_size()]);
+	}
+    }
+    e.close(cancellable);
+}
+
+tallySizes(root, sizes, cancellable);
+
+sizes.sort(function(a,b) {
+    let sizeA = a[1];
+    let sizeB = b[1];
+
+    if (sizeA > sizeB)
+	return -1;
+    else if (sizeA < sizeB)
+	return 1;
+    else
+	return 0;
+});
+
+for (let i = 0; i < 100 && i < sizes.length; i++) {
+    let [path,size] = sizes[i];
+    print("" + size + " " + path.get_path());
+}
+
+
+