-#include <msp/path/utils.h>
-#include "action.h"
+#include <msp/core/algorithm.h>
+#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::Target(Builder &b, const string &n):
+ builder(b),
+ package(0),
+ component(0),
+ name(n),
+ tool(0),
+ state(INIT),
+ primary_target(0)
+{
+ 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()
{
- bool self_ok=true;
- for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
+ if(primary_target)
+ return primary_target->get_buildable_target();
+ if(!needs_rebuild())
+ return 0;
+
+ bool self_ok = state!=BUILDING;
+ for(Target *d: depends)
{
- Target *tgt=(*i)->get_buildable_target();
+ // Avoid infinite recursion if a target repends on its own side effect
+ if(any_equals(side_effects, d))
+ continue;
+
+ Target *tgt = d->get_buildable_target();
if(tgt)
return tgt;
- else if((*i)->get_rebuild())
- self_ok=false;
+ else if(d->needs_rebuild())
+ self_ok = false;
}
- if(self_ok && rebuild && !building)
+ 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(Target *s: side_effects)
+ s->set_tool(t);
}
-void Target::prepare()
+void Target::collect_build_info(BuildInfo &binfo) const
{
- if(prepared)
- return;
-
- for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
- (*i)->prepare();
-
- check_rebuild();
+ 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());
}
-Target::Target(Builder &b, const Package *p, const string &n):
- builder(b),
- package(p),
- name(n),
- building(false),
- rebuild(false),
- prepared(false),
- buildable(false)
+void Target::force_rebuild()
{
- struct stat st;
- if(!Path::stat(name, st))
- {
- mtime=Time::TimeStamp::from_unixtime(st.st_mtime);
- vmtime=mtime;
- }
+ if(!is_buildable())
+ throw logic_error("Target::force_rebuild");
+ mark_rebuild("Forced rebuild");
}
-void Target::mark_rebuild(const std::string &reason)
+void Target::mark_rebuild(const string &reason)
{
- rebuild=true;
- rebuild_reason=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));
+
+ signal_bubble_rebuild.emit();
}
-void Target::check_rebuild()
+void Target::prepare()
{
- if(!buildable)
+ 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;
+ }
- if(!mtime)
- mark_rebuild("Does not exist");
- else
+ state = PREPARING;
+ if(tool)
+ tool->prepare();
+
+ find_dependencies();
+ bool broken = !problems.empty();
+
+ if(tool)
{
- for(list<Target *>::iterator i=depends.begin(); (i!=depends.end() && !rebuild); ++i)
- {
- if((*i)->get_virtual_mtime()>mtime)
- mark_rebuild((*i)->get_name()+" has changed");
- else if((*i)->get_rebuild())
- mark_rebuild((*i)->get_name()+" needs rebuilding");
- }
+ 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(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));
}
-Action *Target::build(Action *action)
+Task *Target::build()
{
- building=true;
- action->signal_done.connect(sigc::mem_fun(this, &Target::build_done));
- return action;
+ 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_done()
+void Target::build_finished(bool success)
{
- building=false;
- rebuild=false;
+ state = UPTODATE;
+ if(success)
+ {
+ modified();
+ for(Target *s: side_effects)
+ s->build_finished(success);
+ signal_modified.emit();
+ }
}