/// <summary>
/// Processes the specified script.
/// </summary>
/// <param name="path">The script path.</param>
/// <param name="context">The context.</param>
public void Process(FilePath path, ScriptProcessorContext context)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
// Already processed this script?
if (context.HasScriptBeenProcessed(path.FullPath))
{
_log.Debug("Skipping {0} since it's already been processed.", path.GetFilename().FullPath);
return;
}
// Add the script.
context.MarkScriptAsProcessed(path.MakeAbsolute(_environment).FullPath);
// Read the source.
_log.Debug("Processing {0}...", path.GetFilename().FullPath);
var lines = ReadSource(path);
// Iterate all lines in the script.
foreach (var line in lines)
{
if (!_lineProcessors.Any(p => p.Process(this, context, path, line)))
{
context.AppendScriptLine(line);
}
}
}
/// <summary>
/// Generates script aliases and adds them to the specified session.
/// </summary>
/// <param name="context">The script context to add generated code to.</param>
/// <param name="assemblies">The assemblies to find script aliases in.</param>
public void GenerateScriptAliases(ScriptProcessorContext context, IEnumerable <Assembly> assemblies)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
foreach (var method in ScriptAliasFinder.FindAliases(assemblies))
{
try
{
// Import the method's namespace to the session.
var @namespace = method.GetNamespace();
context.AddNamespace(@namespace);
// Find out if the method want us to import more namespaces.
var namespaceAttributes = method.GetCustomAttributes <CakeNamespaceImportAttribute>();
foreach (var namespaceAttribute in namespaceAttributes)
{
context.AddNamespace(namespaceAttribute.Namespace);
}
// Find out if the class contains any more namespaces.
namespaceAttributes = method.DeclaringType.GetCustomAttributes <CakeNamespaceImportAttribute>();
foreach (var namespaceAttribute in namespaceAttributes)
{
context.AddNamespace(namespaceAttribute.Namespace);
}
// Generate the code.
var code = GenerateCode(method);
// Add the generated code to the context.
context.AddScriptAliasCode(code);
}
catch (Exception)
{
// Log this error.
const string format = "An error occured while generating code for alias {0}.";
_log.Error(format, method.GetSignature(false));
// Rethrow the original exception.
throw;
}
}
}
/// <summary>
/// Processes the specified script.
/// </summary>
/// <param name="path">The script path.</param>
/// <param name="context">The context.</param>
public void Process(FilePath path, ScriptProcessorContext context)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
// Already processed this script?
if (context.HasScriptBeenProcessed(path.FullPath))
{
_log.Debug("Skipping {0} since it's already been processed.", path.GetFilename().FullPath);
return;
}
// Add the script.
context.MarkScriptAsProcessed(path.MakeAbsolute(_environment).FullPath);
// Read the source.
_log.Debug("Processing {0}...", path.GetFilename().FullPath);
var lines = ReadSource(path);
// Iterate all lines in the script.
var firstLine = true;
foreach (var line in lines)
{
if (!_lineProcessors.Any(p => p.Process(this, context, path, line)))
{
if (firstLine)
{
// Append the line directive for the script.
var scriptFullPath = path.MakeAbsolute(_environment);
context.AppendScriptLine(string.Format(CultureInfo.InvariantCulture, "#line 1 \"{0}\"", scriptFullPath.FullPath));
firstLine = false;
}
context.AppendScriptLine(line);
}
}
}
/// <summary>
/// Runs the script using the specified script host.
/// </summary>
/// <param name="host">The script host.</param>
/// <param name="script">The script.</param>
/// <param name="arguments">The arguments.</param>
public void Run(IScriptHost host, FilePath script, IDictionary <string, string> arguments)
{
if (host == null)
{
throw new ArgumentNullException("host");
}
if (script == null)
{
throw new ArgumentNullException("script");
}
if (arguments == null)
{
throw new ArgumentNullException("arguments");
}
// Copy the arguments from the options.
host.Context.Arguments.SetArguments(arguments);
// Set the working directory.
host.Context.Environment.WorkingDirectory
= script.MakeAbsolute(host.Context.Environment).GetDirectory();
// Make sure that any directories are stripped from the script path.
script = script.GetFilename();
// Create and prepare the session.
var session = _sessionFactory.CreateSession(host, arguments);
// Process the script.
var context = new ScriptProcessorContext();
_scriptProcessor.Process(script, context);
// Load all references.
var assemblies = new List <Assembly>();
assemblies.AddRange(GetDefaultAssemblies(host.Context.FileSystem));
foreach (var reference in context.References)
{
if (host.Context.FileSystem.Exist((FilePath)reference))
{
var assembly = Assembly.LoadFile(reference);
assemblies.Add(assembly);
}
else
{
// Add a reference to the session.
session.AddReferencePath(reference);
}
}
// Got any assemblies?
if (assemblies.Count > 0)
{
// Find all extension methods and generate proxy methods.
_aliasGenerator.GenerateScriptAliases(context, assemblies);
// Add assembly references to the session.
foreach (var assembly in assemblies)
{
session.AddReference(assembly);
}
}
// Import all namespaces.
var namespaces = new List <string>(context.Namespaces);
namespaces.AddRange(GetDefaultNamespaces());
foreach (var @namespace in namespaces.OrderBy(ns => ns))
{
session.ImportNamespace(@namespace);
}
// Execute the script.
session.Execute(context.GetScriptCode());
}
/// <summary>
/// Runs the script using the specified script host.
/// </summary>
/// <param name="host">The script host.</param>
/// <param name="scriptPath">The script.</param>
/// <param name="arguments">The arguments.</param>
public void Run(IScriptHost host, FilePath scriptPath, IDictionary <string, string> arguments)
{
if (host == null)
{
throw new ArgumentNullException("host");
}
if (scriptPath == null)
{
throw new ArgumentNullException("scriptPath");
}
if (arguments == null)
{
throw new ArgumentNullException("arguments");
}
// Copy the arguments from the options.
host.Context.Arguments.SetArguments(arguments);
// Set the working directory.
host.Context.Environment.WorkingDirectory = scriptPath.MakeAbsolute(host.Context.Environment).GetDirectory();
// Process the script.
var context = new ScriptProcessorContext();
_scriptProcessor.Process(scriptPath.GetFilename(), context);
// Create and prepare the session.
var session = _engine.CreateSession(host, arguments);
// Load all references.
var assemblies = new HashSet <Assembly>();
assemblies.AddRange(GetDefaultAssemblies(host.Context.FileSystem));
foreach (var reference in context.References)
{
if (host.Context.FileSystem.Exist((FilePath)reference))
{
var assembly = Assembly.LoadFile(reference);
assemblies.Add(assembly);
}
else
{
// Add a reference to the session.
session.AddReference(reference);
}
}
var aliases = new List <ScriptAlias>();
// Got any assemblies?
if (assemblies.Count > 0)
{
// Find all script aliases.
var foundAliases = _aliasFinder.FindAliases(assemblies);
if (foundAliases.Length > 0)
{
aliases.AddRange(foundAliases);
}
// Add assembly references to the session.
foreach (var assembly in assemblies)
{
session.AddReference(assembly);
}
}
// Import all namespaces.
var namespaces = new HashSet <string>(context.Namespaces, StringComparer.Ordinal);
namespaces.AddRange(GetDefaultNamespaces());
namespaces.AddRange(aliases.SelectMany(alias => alias.Namespaces));
foreach (var @namespace in namespaces.OrderBy(ns => ns))
{
session.ImportNamespace(@namespace);
}
// Execute the script.
var script = new Script(context.Namespaces, context.Lines, aliases);
session.Execute(script);
}
/// <summary> /// Processes the specified line. /// </summary> /// <param name="processor">The script processor.</param> /// <param name="context">The script processor context.</param> /// <param name="currentScriptPath">The current script path.</param> /// <param name="line">The line to process.</param> /// <returns> /// <c>true</c> if the processor handled the line; otherwise <c>false</c>. /// </returns> public abstract bool Process(IScriptProcessor processor, ScriptProcessorContext context, FilePath currentScriptPath, string line);
