-/* $Id$
-
-This file is part of builder
-Copyright © 2006-2009 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
#ifndef TARGET_H_
#define TARGET_H_
#include <list>
#include <map>
+#include <set>
#include <string>
#include <msp/time/timestamp.h>
/**
Targets make up the build graph. This class is a base for all target types and
-handles many common tasks. Most targets are associated with a file.
+handles many common tasks. See also FileTarget and VirtualTarget.
*/
class Target
{
Builder &builder;
const Package *package;
std::string name;
- Msp::Time::TimeStamp mtime;
bool buildable;
bool building;
std::string rebuild_reason;
TargetList depends;
- TargetList rdepends;
bool deps_ready;
+ bool preparing;
bool prepared;
- bool counted;
Target(Builder &, const Package *, const std::string &);
public:
virtual ~Target() { }
- virtual const char *get_type() const=0;
+ virtual const char *get_type() const = 0;
const std::string &get_name() const { return name; }
const Package *get_package() const { return package; }
- const Msp::Time::TimeStamp &get_mtime() const { return mtime; }
/**
Tries to locate a target that will help getting this target built. If all
dependencies are up-to-date, returns this target. If there are no targets
ready to be built (maybe because they are being built right now), returns 0.
*/
- Target *get_buildable_target();
+ virtual Target *get_buildable_target();
+
+ /**
+ If this target is a proxy for another (such as Install or Symlink), return
+ that target. Otherwise, return the target itself.
+
+ Implementors should call the function recursively to find the final target.
+ */
+ virtual Target *get_real_target() { return this; }
bool is_buildable() const { return buildable; }
bool get_rebuild() const { return rebuild; }
Finds dependencies for the target. When all dependencies have been found,
the function should set deps_ready to true.
*/
- virtual void find_depends() { deps_ready=true; }
+ virtual void find_depends() { deps_ready = true; }
/**
Prepares the target by recursively preparing dependencies, then checking
Starts building the target. Returns the Action used for building.
*/
Action *build();
-
- void reset_count() { counted=false; }
-
- /**
- Returns the number of targets that need to be rebuilt in order to get this
- target up-to-date.
- */
- virtual unsigned count_rebuild();
-
- /**
- Changes the mtime of the target to the current time.
- */
- void touch();
protected:
void mark_rebuild(const std::string &);
/**
Checks if the target needs to be rebuilt and why.
*/
- virtual void check_rebuild();
+ virtual void check_rebuild() = 0;
/**
Creates and returns an Action suitable for building this target.
virtual Action *create_action() =0;
/**
- Handles for the build_done signal of Action.
+ Handler for the build_done signal of Action.
*/
virtual void build_done();
};