+#include <algorithm>
+#include <msp/fs/stat.h>
+#include <msp/fs/utils.h>
+#include <msp/strings/format.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 *TargetRef::get_target()
+Target::Target(Builder &b, const string &n):
+ builder(b),
+ package(0),
+ component(0),
+ name(n),
+ tool(0),
+ state(INIT),
+ primary_target(0)
{
- if(!target)
- target=builder.get_target(name);
- return target;
+ 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(rebuild && ready_for_build && !building)
- return this;
+ if(primary_target)
+ return primary_target->get_buildable_target();
+ if(!needs_rebuild())
+ return 0;
- for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
+ bool self_ok = state!=BUILDING;
+ for(Dependencies::iterator i=depends.begin(); i!=depends.end(); ++i)
{
- Target *tgt=(*i)->get_buildable_target();
+ // Avoid infinite recursion if a target repends on its own side effect
+ if(find(side_effects.begin(), side_effects.end(), *i)!=side_effects.end())
+ continue;
+
+ Target *tgt = (*i)->get_buildable_target();
if(tgt)
return tgt;
+ else if((*i)->needs_rebuild())
+ self_ok = false;
}
+ if(self_ok)
+ return this;
+
return 0;
}
-void Target::add_depend(Target *dep)
+void Target::set_tool(Tool &t)
{
- depends.push_back(dep);
- dep->rdepends.push_back(this);
+ tool = &t;
+ for(Dependencies::const_iterator i=side_effects.begin(); i!=side_effects.end(); ++i)
+ (*i)->set_tool(t);
}
-Target::Target(Builder &b, const Package *p, const string &n):
- builder(b),
- package(p),
- name(n),
- building(false),
- rebuild(false),
- ready_for_build(false)
-{ }
+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", format("Rebuilding %s: %s", name, reason));
-void Target::mark_rebuild(const std::string &reason)
+ signal_bubble_rebuild.emit();
+}
+
+void Target::prepare()
+{
+ if(state>PREPARING)
+ return;
+ if(state==PREPARING)
+ {
+ builder.get_logger().log("problems", format("Dependency cycle detected at %s", name));
+ problems.push_back("Dependency cycle detected");
+ state = BROKEN;
+ return;
+ }
+
+ state = PREPARING;
+ 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());
+ }
+
+ for(Dependencies::iterator i=depends.begin(); i!=depends.end(); ++i)
+ {
+ (*i)->prepare();
+ broken |= (*i)->is_broken();
+ }
+ for(Dependencies::iterator i=trans_depends.begin(); i!=trans_depends.end(); ++i)
+ (*i)->prepare();
+
+ check_rebuild();
+ if(broken)
+ state = BROKEN;
+ else if(state==PREPARING)
+ state = UPTODATE;
+
+ for(Dependencies::iterator i=depends.begin(); i!=depends.end(); ++i)
+ (*i)->signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
+}
+
+Task *Target::build()
{
- rebuild=true;
- rebuild_reason=reason;
+ 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(Dependencies::const_iterator i=side_effects.begin(); i!=side_effects.end(); ++i)
+ (*i)->build(*task);
+
+ return task;
+}
+
+void Target::build_finished(bool success)
+{
+ state = UPTODATE;
+ if(success)
+ {
+ modified();
+ for(Dependencies::const_iterator i=side_effects.begin(); i!=side_effects.end(); ++i)
+ (*i)->build_finished(success);
+ signal_modified.emit();
+ }
}
projects / builder.git / blobdiff