-#include <msp/core/algorithm.h>
-#include <msp/fs/stat.h>
-#include <msp/fs/utils.h>
-#include "builder.h"
-#include "filetarget.h"
-#include "sourcepackage.h"
-#include "target.h"
-#include "task.h"
-#include "tool.h"
-
-using namespace std;
-using namespace Msp;
-
-Target::Target(Builder &b, const string &n):
- builder(b),
- name(n)
-{
- builder.get_build_graph().add_target(this);
-}
-
-void Target::add_dependency(Target &dep)
-{
- if(&dep==this)
- throw invalid_argument("Target::add_depend");
- depends.push_back(&dep);
- if(state>PREPARING)
- dep.signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
-}
-
-void Target::add_transitive_dependency(Target &dep)
-{
- if(&dep==this)
- throw invalid_argument("Target::add_transitive_dependency");
- trans_depends.push_back(&dep);
-}
-
-void Target::add_side_effect(Target &se)
-{
- side_effects.push_back(&se);
- if(tool)
- se.set_tool(*tool);
- se.primary_target = this;
- /* Side effects are checked for rebuild after the primary target. Recheck
- the primary if a side effect is marked for rebuild. */
- se.signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
-}
-
-Target *Target::get_buildable_target()
-{
- if(primary_target)
- return primary_target->get_buildable_target();
- if(!needs_rebuild())
- return 0;
-
- bool self_ok = state!=BUILDING;
- for(Target *d: depends)
- {
- // Avoid infinite recursion if a target depends on its own side effect
- if(any_equals(side_effects, d))
- continue;
-
- Target *tgt = d->get_buildable_target();
- if(tgt)
- return tgt;
- else if(d->needs_rebuild())
- self_ok = false;
- }
-
- if(self_ok)
- return this;
-
- return 0;
-}
-
-void Target::set_tool(Tool &t)
-{
- tool = &t;
- for(Target *s: side_effects)
- s->set_tool(t);
-}
-
-void Target::collect_build_info(BuildInfo &binfo) const
-{
- if(tool)
- binfo.update_from(tool->get_build_info());
- if(component)
- binfo.update_from(component->get_build_info());
- else if(package)
- binfo.update_from(package->get_build_info());
-}
-
-void Target::force_rebuild()
-{
- if(!is_buildable())
- throw logic_error("Target::force_rebuild");
- mark_rebuild("Forced rebuild");
-}
-
-void Target::mark_rebuild(const string &reason)
-{
- if(reason.empty())
- throw invalid_argument("No reason given for rebuilding "+name);
-
- state = REBUILD;
- rebuild_reason = reason;
-
- builder.get_logger().log("rebuild", "Rebuilding %s: %s", name, reason);
-
- signal_bubble_rebuild.emit();
-}
-
-void Target::prepare()
-{
- if(state>PREPARING)
- return;
- if(state==PREPARING)
- {
- builder.get_logger().log("problems", "Dependency cycle detected at %s", name);
- problems.push_back("Dependency cycle detected");
- state = BROKEN;
- return;
- }
-
- state = PREPARING;
- /* Prepare existing dependencies early, because their information may be
- needed to find other dependencies. */
- for(Target *d: depends)
- d->prepare();
- if(tool)
- tool->prepare();
-
- find_dependencies();
- bool broken = !problems.empty();
-
- if(tool)
- {
- if(FileTarget *tool_exe = tool->get_executable())
- add_dependency(*tool_exe);
- broken |= !tool->get_problems().empty();
-
- // Only check package and component problems for buildable targets
- // XXX How to propagate nested package problems?
- broken |= (package && !package->get_problems().empty());
- broken |= (component && !component->get_problems().empty());
- }
-
- /* Now that all dependencies are known, prepare them again. This will do
- nothing to already prepared targets. */
- for(Target *d: depends)
- {
- d->prepare();
- broken |= d->is_broken();
- }
- for(Target *d: trans_depends)
- d->prepare();
-
- check_rebuild();
- if(broken)
- state = BROKEN;
- else if(state==PREPARING)
- state = UPTODATE;
-
- for(Target *d: depends)
- d->signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
-}
-
-Task *Target::build()
-{
- if(primary_target)
- return primary_target->build();
-
- Task *task = tool->run(*this);
- task->signal_finished.connect(sigc::mem_fun(this, &Target::build_finished));
- state = BUILDING;
-
- build(*task);
- for(Target *s: side_effects)
- s->build(*task);
-
- return task;
-}
-
-void Target::build_finished(bool success)
-{
- state = UPTODATE;
- if(success)
- {
- modified();
- for(Target *s: side_effects)
- s->build_finished(success);
- signal_modified.emit();
- }
-}