3 This file is part of builder
4 Copyright © 2006-2009 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
14 #include <msp/time/timestamp.h>
21 typedef std::list<Target *> TargetList;
24 Targets make up the build graph. This class is a base for all target types and
25 handles many common tasks. Most targets are associated with a file.
31 const Package *package;
33 Msp::Time::TimeStamp mtime;
38 std::string rebuild_reason;
47 Target(Builder &, const Package *, const std::string &);
51 virtual const char *get_type() const=0;
52 const std::string &get_name() const { return name; }
53 const Package *get_package() const { return package; }
54 const Msp::Time::TimeStamp &get_mtime() const { return mtime; }
57 Tries to locate a target that will help getting this target built. If all
58 dependencies are up-to-date, returns this target. If there are no targets
59 ready to be built (maybe because they are being built right now), returns 0.
61 Target *get_buildable_target();
63 bool is_buildable() const { return buildable; }
64 bool get_rebuild() const { return rebuild; }
65 const std::string &get_rebuild_reason() const { return rebuild_reason; }
66 void add_depend(Target *);
67 const TargetList &get_depends() const { return depends; }
68 bool get_depends_ready() const { return deps_ready; }
71 Finds dependencies for the target. When all dependencies have been found,
72 the function should set deps_ready to true.
74 virtual void find_depends() { deps_ready=true; }
77 Prepares the target by recursively preparing dependencies, then checking
78 whether rebuilding is needed. A flag is used to prevent unnecessary
81 virtual void prepare();
84 Starts building the target. Returns the Action used for building.
88 void reset_count() { counted=false; }
91 Returns the number of targets that need to be rebuilt in order to get this
94 virtual unsigned count_rebuild();
97 Changes the mtime of the target to the current time.
101 void mark_rebuild(const std::string &);
104 Checks if the target needs to be rebuilt and why.
106 virtual void check_rebuild();
109 Creates and returns an Action suitable for building this target.
111 virtual Action *create_action() =0;
114 Handles for the build_done signal of Action.
116 virtual void build_done();
119 typedef std::map<std::string, Target *> TargetMap;