-/* $Id$
-
-This file is part of builder
-Copyright © 2006-2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <msp/path/utils.h>
-#include <msp/time/utils.h>
-#include "action.h"
+#include <algorithm>
+#include <msp/fs/stat.h>
+#include <msp/fs/utils.h>
+#include <msp/strings/format.h>
#include "builder.h"
-#include "package.h"
+#include "filetarget.h"
#include "sourcepackage.h"
#include "target.h"
+#include "task.h"
+#include "tool.h"
using namespace std;
using namespace Msp;
-/**
-Tries to locate a target that will help getting this target built. If all
-dependencies are up-to-date, returns this target. If there are no targets
-ready to be built (maybe because they are being built right now), returns 0.
-*/
+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()
{
- if(!rebuild)
+ if(primary_target)
+ return primary_target->get_buildable_target();
+ if(!needs_rebuild())
return 0;
- bool self_ok=!building;
- for(TargetList::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)->get_rebuild())
- self_ok=false;
+ else if((*i)->needs_rebuild())
+ self_ok = false;
}
if(self_ok)
return 0;
}
-void Target::add_depend(Target *dep)
+void Target::set_tool(Tool &t)
{
- if(dep==this)
- throw InvalidParameterValue("A target can't depend on itself");
- 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);
}
-/**
-Prepares the target by recursively preparing dependencies, then checking
-whether rebuilding is needed. A flag is used to prevent unnecessary
-executions.
-*/
-void Target::prepare()
+void Target::collect_build_info(BuildInfo &binfo) const
{
- if(prepared)
- return;
+ 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());
+}
- prepared=true;
- for(TargetList::iterator i=depends.begin(); i!=depends.end(); ++i)
- (*i)->prepare();
+void Target::force_rebuild()
+{
+ if(!is_buildable())
+ throw logic_error("Target::force_rebuild");
+ mark_rebuild("Forced rebuild");
+}
- check_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));
+ signal_bubble_rebuild.emit();
}
-Action *Target::build()
+void Target::prepare()
{
- if(!buildable)
+ if(state>PREPARING)
+ return;
+ if(state==PREPARING)
{
- rebuild=false;
- return 0;
+ builder.get_logger().log("problems", format("Dependency cycle detected at %s", name));
+ problems.push_back("Dependency cycle detected");
+ state = BROKEN;
+ return;
}
- if(!builder.get_dry_run() && exists(name))
- unlink(name);
+ state = PREPARING;
+ if(tool)
+ tool->prepare();
- Action *action=create_action();
- if(action)
- {
- action->signal_done.connect(sigc::mem_fun(this, &Target::build_done));
+ find_dependencies();
+ bool broken = !problems.empty();
- building=true;
+ 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());
}
- return action;
-}
+ 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();
-/**
-Returns the number of targets that need to be rebuilt in order to get this
-target up-to-date.
-*/
-unsigned Target::count_rebuild()
-{
- if(counted)
- return 0;
+ check_rebuild();
+ if(broken)
+ state = BROKEN;
+ else if(state==PREPARING)
+ state = UPTODATE;
- counted=true;
- unsigned count=rebuild;
- for(TargetList::iterator i=depends.begin(); i!=depends.end(); ++i)
- count+=(*i)->count_rebuild();
- return count;
+ for(Dependencies::iterator i=depends.begin(); i!=depends.end(); ++i)
+ (*i)->signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
}
-/**
-Changes the mtime of the target to the current time.
-*/
-void Target::touch()
+Task *Target::build()
{
- mtime=Time::now();
-}
+ if(primary_target)
+ return primary_target->build();
-Target::Target(Builder &b, const Package *p, const string &n):
- builder(b),
- package(p),
- name(n),
- buildable(false),
- building(false),
- rebuild(false),
- deps_ready(false),
- prepared(false),
- counted(false)
-{
- builder.add_target(this);
+ Task *task = tool->run(*this);
+ task->signal_finished.connect(sigc::mem_fun(this, &Target::build_finished));
+ state = BUILDING;
- struct stat st;
- if(!stat(name, st))
- mtime=Time::TimeStamp::from_unixtime(st.st_mtime);
-}
+ build(*task);
+ for(Dependencies::const_iterator i=side_effects.begin(); i!=side_effects.end(); ++i)
+ (*i)->build(*task);
-void Target::mark_rebuild(const std::string &reason)
-{
- rebuild=true;
- rebuild_reason=reason;
+ return task;
}
-/**
-Checks if this target needs to be rebuilt and why.
-*/
-void Target::check_rebuild()
+void Target::build_finished(bool success)
{
- if(!buildable)
- return;
-
- if(builder.get_build_all())
- mark_rebuild("Rebuilding everything");
- else if(!mtime)
- mark_rebuild("Does not exist");
- else
+ state = UPTODATE;
+ if(success)
{
- for(TargetList::iterator i=depends.begin(); (i!=depends.end() && !rebuild); ++i)
- {
- if((*i)->get_mtime()>mtime)
- mark_rebuild(basename((*i)->get_name())+" has changed");
- else if((*i)->get_rebuild())
- mark_rebuild(basename((*i)->get_name())+" needs rebuilding");
- }
+ modified();
+ for(Dependencies::const_iterator i=side_effects.begin(); i!=side_effects.end(); ++i)
+ (*i)->build_finished(success);
+ signal_modified.emit();
}
-
- const SourcePackage *spkg=dynamic_cast<const SourcePackage *>(package);
- if(!rebuild && spkg && spkg->get_config().get_mtime()>mtime)
- mark_rebuild("Package options changed");
-}
-
-/**
-Handles for the build_done signal of Action.
-*/
-void Target::build_done()
-{
- building=false;
- rebuild=false;
}
projects / builder.git / blobdiff