Mercurial - log the command executed - version-control

Question

We've been using mercurial for a while now and everything is working fine.
The only problem we encounter is when someone runs a "bad command".
An example would be, merging an unstable branch in the stable trunk or pulling a similarly named branch over something completely unrelated overwriting a bunch of stuff...
You've got hg log but you always get people that won't believe the output saying "I didn't do that"...now in the interest of public shaming :) and giving rightful priviledges to the "You broke the built hat", I'm wondering, is there a way to have Mercurial log every command its given to a text file that would give us something like:
hg pull -b something
hg merge TotallyWrongBranch
hg ci -m "I didn't do it!" -u bsimpson

Answer 1

Ok, I had a few minutes on my hand so I wrote an exe and named it hg.exe and renamed Mercurial's original exe to real_hg...
An ugly hack don't mind the code quality please IT WORKS!
public static StreamWriter sw;
static void Main(string[] args)
{
sw = new StreamWriter("hgCommandLog.txt", true);
StringBuilder sbArguments = new StringBuilder();
if (args.Length > 0)
{
for (int i = 0; i < args.Length; i++)
{
sbArguments.Append(args[i]);
sbArguments.Append(" ");
}
}
//Console.WriteLine("arg:" + sbArguments.ToString());
//Console.WriteLine("Session ID = " + System.Diagnostics.Process.GetCurrentProcess().SessionId.ToString());
//Console.WriteLine("hello ->"+Environment.GetEnvironmentVariable("CLIENTNAME"));
string sessionID = System.Diagnostics.Process.GetCurrentProcess().SessionId.ToString();
string clientName = Environment.GetEnvironmentVariable("CLIENTNAME");
//log the command to sw
sw.WriteLine(DateTime.Now.ToString() + "\t" + clientName + "("+sessionID+")\t" + "hg " + sbArguments.ToString());
sw.Flush();
// Start the child process.
Process p = new Process();
// Redirect the output stream of the child process.
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = "real_hg";
p.StartInfo.Arguments = sbArguments.ToString();
p.StartInfo.CreateNoWindow = true;
p.ErrorDataReceived += outputReceived;
p.OutputDataReceived += outputReceived;
p.EnableRaisingEvents = true;
p.Start();
// Do not wait for the child process to exit before
// reading to the end of its redirected stream.
p.BeginOutputReadLine();
//p.BeginErrorReadLine();
p.WaitForExit();
sw.Close();
}
static void outputReceived(object sender, DataReceivedEventArgs e)
{
sw.WriteLine("\t"+e.Data);
Console.WriteLine(e.Data);
}