3 This file is part of builder
4 Copyright © 2006-2009 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
15 #include <msp/time/timestamp.h>
22 typedef std::list<Target *> TargetList;
25 Targets make up the build graph. This class is a base for all target types and
26 handles many common tasks. Most targets are associated with a file.
32 const Package *package;
34 Msp::Time::TimeStamp mtime;
39 std::string rebuild_reason;
48 Target(Builder &, const Package *, const std::string &);
52 virtual const char *get_type() const = 0;
53 const std::string &get_name() const { return name; }
54 const Package *get_package() const { return package; }
55 const Msp::Time::TimeStamp &get_mtime() const { return mtime; }
58 Tries to locate a target that will help getting this target built. If all
59 dependencies are up-to-date, returns this target. If there are no targets
60 ready to be built (maybe because they are being built right now), returns 0.
62 Target *get_buildable_target();
64 bool is_buildable() const { return buildable; }
65 bool get_rebuild() const { return rebuild; }
66 const std::string &get_rebuild_reason() const { return rebuild_reason; }
67 void add_depend(Target *);
68 const TargetList &get_depends() const { return depends; }
69 bool get_depends_ready() const { return deps_ready; }
72 Finds dependencies for the target. When all dependencies have been found,
73 the function should set deps_ready to true.
75 virtual void find_depends() { deps_ready = true; }
78 Prepares the target by recursively preparing dependencies, then checking
79 whether rebuilding is needed. A flag is used to prevent unnecessary
82 virtual void prepare();
85 Starts building the target. Returns the Action used for building.
90 Changes the mtime of the target to the current time.
94 void mark_rebuild(const std::string &);
97 Checks if the target needs to be rebuilt and why.
99 virtual void check_rebuild();
102 Creates and returns an Action suitable for building this target.
104 virtual Action *create_action() =0;
107 Handler for the build_done signal of Action.
109 virtual void build_done();
112 typedef std::map<std::string, Target *> TargetMap;