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//
// ExerciseFileSystem.cs
//
// Copyright (C) 2005 Novell, Inc.
//
//
// 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.
//
using System;
using System.Collections;
using System.IO;
using System.Threading;
using CommandLineFu;
using Beagle.Util;
class ExerciseFileSystemTool {
[Option (LongName="root")]
static string root = null;
[Option (LongName="file-source")]
static string file_source = null;
[Option (LongName="max-files")]
static int max_files = 20;
[Option (LongName="max-directories")]
static int max_directories = 5;
[Option (LongName="depth")]
static int max_depth = 4;
[Option (LongName="action-count")]
static int action_count = 0;
[Option (LongName="max-interval")]
static int max_interval = 1000;
static Random random = new Random ();
static ArrayList all_directories = new ArrayList ();
static ArrayList all_files = new ArrayList ();
static ArrayList available_source_files = null;
static string GetRandomSourceFile ()
{
if (file_source == null)
return null;
if (available_source_files == null) {
available_source_files = new ArrayList ();
DirectoryInfo dir = new DirectoryInfo (file_source);
foreach (FileInfo file in dir.GetFiles ()) {
if (file.Name.StartsWith (".")
|| file.Name.EndsWith ("~")
|| (file.Name.StartsWith ("#") && file.Name.EndsWith ("#")))
continue;
available_source_files.Add (file.FullName);
}
}
if (available_source_files.Count == 0)
return null;
return (string) available_source_files [random.Next (available_source_files.Count)];
}
static int name_counter = 0;
static string GetRandomName ()
{
++name_counter;
return name_counter.ToString ();
}
static string CreateFile (string directory)
{
string source_file = GetRandomSourceFile ();
string new_file = Path.Combine (directory, GetRandomName ());
if (source_file != null) {
new_file += Path.GetExtension (source_file);
File.Copy (source_file, new_file);
} else {
File.Create (new_file).Close ();
}
all_files.Add (new_file);
return new_file;
}
static void CreateDirectories (string parent, int depth)
{
string path = Path.Combine (parent, GetRandomName ());
Directory.CreateDirectory (path);
all_directories.Add (path);
int n_files = random.Next (max_files+1);
for (int i = 0; i < n_files; ++i)
CreateFile (path);
if (depth < max_depth) {
int n_dirs = random.Next (max_directories+1);
if (depth == 0 && n_dirs == 0)
n_dirs = 1;
for (int i = 0; i < n_dirs; ++i)
CreateDirectories (path, depth+1);
}
}
static void DoSomething ()
{
if (all_directories.Count == 0) {
CreateDirectories (root, 0);
return;
}
int random_dir_i = random.Next (all_directories.Count);
int random_file_i = random.Next (all_files.Count);
string random_dir = (string) all_directories [random_dir_i];
string random_file = (string) all_files [random_file_i];
int action = 0;
action = random.Next (4);
switch (action) {
case 0: // Create new file
string new_file = CreateFile (random_dir);
Console.WriteLine ("Created {0}", new_file);
break;
case 1: // Delete a file
File.Delete (random_file);
all_files.RemoveAt (random_file_i);
Console.WriteLine ("Deleted {0}", random_file);
break;
case 2: // Create new subdirectory
string path = Path.Combine (random_dir, GetRandomName ());
Directory.CreateDirectory (path);
all_directories.Add (path);
Console.WriteLine ("Created subdirectory {0}", path);
break;
case 3: // Recursively delete a subdirectory
break;
}
}
static void Main (string [] args)
{
CommandLine.ProgramName = "beagle-exercise-file-system";
CommandLine.ProgramCopyright = "Copyright (C) 2005 Novell, Inc.";
args = CommandLine.Process (typeof (ExerciseFileSystemTool), args);
if (args == null)
return;
if (root == null)
root = Environment.GetEnvironmentVariable ("PWD");
if (Directory.Exists (Path.Combine (root, "1")))
Directory.Delete (Path.Combine (root, "1"), true);
CreateDirectories (root, 0);
Console.WriteLine ("Created {0} files across {1} directories",
all_files.Count, all_directories.Count);
for (int i = 0; i < action_count; ++i) {
DoSomething ();
int interval = random.Next (max_interval);
if (interval > 0)
Thread.Sleep (interval);
}
}
}
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