Add support for statically linking the C++ standard library

[builder.git] / source / filetarget.cpp

diff --git a/source/filetarget.cpp b/source/filetarget.cpp
index 08b0f3115e984e25d30b73f6d2e21d5a5543236c..51a92d13b1a11f61c34671a1d8c39adfa710bdcc 100644 (file)
--- a/source/filetarget.cpp
+++ b/source/filetarget.cpp
@@ -1,27 +1,177 @@
-/* $Id$
-
-This file is part of builder
-Copyright © 2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <msp/fs/stat.h>
 #include <msp/fs/utils.h>
-#include "file.h"
+#include <msp/strings/format.h>
+#include <msp/strings/utils.h>
+#include <msp/time/utils.h>
+#include "builder.h"
+#include "filetarget.h"
+#include "sourcepackage.h"
+#include "task.h"
+#include "tool.h"
 
 using namespace std;
 using namespace Msp;
 
-FileTarget::FileTarget(Builder &b, const Package *p, const FS::Path &a):
-       // XXX Builder depends on target name being its path for locating file targets
-       Target(b, p, /*FS::basename*/(a.str())),
-       path(a),
-       size(0)
+FileTarget::FileTarget(Builder &b, const FS::Path &a):
+       Target(b, generate_name(b, 0, a)),
+       path(a)
+{
+       init(0);
+}
+
+FileTarget::FileTarget(Builder &b, const SourcePackage &p, const FS::Path &a):
+       Target(b, generate_name(b, &p, a)),
+       path(a)
+{
+       init(&p);
+}
+
+void FileTarget::init(const SourcePackage *p)
+{
+       size = 0;
+       package = p;
+       nested_build_sig = false;
+       arch_in_build_sig = false;
+
+       builder.get_vfs().register_path(path, this);
+
+       stat();
+}
+
+void FileTarget::stat()
+{
+       if(FS::Stat st = FS::lstat(path))
+       {
+               mtime = st.get_modify_time();
+               size = st.get_size();
+       }
+}
+
+string FileTarget::generate_name(Builder &builder, const SourcePackage *pkg, const FS::Path &path)
+{
+       if(pkg && FS::descendant_depth(path, pkg->get_source_directory())>=0)
+       {
+               FS::Path relpath = FS::relative(path, pkg->get_source_directory());
+               return format("<%s>%s", pkg->get_name(), relpath.str().substr(1));
+       }
+       else if(FS::descendant_depth(path, builder.get_prefix())>=0)
+       {
+               FS::Path relpath = FS::relative(path, builder.get_prefix());
+               return "<prefix>"+relpath.str().substr(1);
+       }
+
+       return path.str();
+}
+
+void FileTarget::touch()
+{
+       mtime = Time::now();
+       modified();
+       signal_bubble_rebuild.emit();
+}
+
+void FileTarget::check_rebuild()
+{
+       if(!tool || needs_rebuild())
+               return;
+
+       if(!mtime)
+               mark_rebuild("Does not exist");
+       else
+       {
+               for(Dependencies::iterator i=depends.begin(); (i!=depends.end() && !needs_rebuild()); ++i)
+               {
+                       FileTarget *ft = dynamic_cast<FileTarget *>(*i);
+                       if(ft && ft->get_mtime()>mtime)
+                               mark_rebuild((*i)->get_name()+" has changed");
+                       else if((*i)->needs_rebuild())
+                               mark_rebuild((*i)->get_name()+" needs rebuilding");
+               }
+       }
+
+       if(!needs_rebuild())
+       {
+               // Some side effects might not exist
+               for(Dependencies::iterator i=side_effects.begin(); (i!=side_effects.end() && !needs_rebuild()); ++i)
+                       if((*i)->needs_rebuild())
+                               mark_rebuild((*i)->get_name()+" needs rebuilding");
+       }
+
+       if(!needs_rebuild() && package)
+       {
+               if(package->get_config().get_mtime()>mtime)
+                       mark_rebuild("Package options changed");
+
+               if(tool->get_executable())
+               {
+                       string build_sig = create_build_signature();
+                       if(package->get_cache().has_key(this, "build_sig"))
+                       {
+                               if(package->get_cache().get_value(this, "build_sig")!=build_sig)
+                                       mark_rebuild("Build signature changed");
+                       }
+               }
+       }
+}
+
+string FileTarget::create_build_signature() const
+{
+       if(!package)
+               return string();
+
+       const BuildInfo &binfo = (component ? component->get_build_info() : package->get_build_info());
+       list<string> sigs;
+       if(nested_build_sig && component)
+       {
+               set<const Tool *> depend_tools;
+               for(Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
+                       if((*i)->get_component()==component && (*i)->get_tool())
+                               depend_tools.insert((*i)->get_tool());
+
+               for(set<const Tool *>::const_iterator i=depend_tools.begin(); i!=depend_tools.end(); ++i)
+                       sigs.push_back((*i)->create_build_signature(binfo));
+               sigs.sort();
+               sigs.push_front(tool->create_build_signature(binfo));
+       }
+       else
+               sigs.push_back(tool->create_build_signature(binfo));
+
+       if(arch_in_build_sig)
+               if(const Architecture *arch = tool->get_architecture())
+                       sigs.push_front(arch->get_name());
+
+       return join(sigs.begin(), sigs.end(), ";");
+}
+
+void FileTarget::build(Task &task)
+{
+       task.add_file(path);
+       task.set_unlink(true);
+}
+
+void FileTarget::build_finished(bool success)
+{
+       if(success)
+       {
+               stat();
+               if(package)
+               {
+                       string build_sig = create_build_signature();
+                       if(!build_sig.empty())
+                               package->get_cache().set_value(this, "build_sig", build_sig);
+               }
+       }
+
+       Target::build_finished(success);
+}
+
+void FileTarget::clean()
 {
-       struct stat st;
-       if(!FS::stat(path, st))
+       if(mtime)
        {
-               mtime=Time::TimeStamp::from_unixtime(st.st_mtime);
-               size=st.st_size;
+               FS::unlink(path);
+               mtime = Time::TimeStamp();
+               size = 0;
+               check_rebuild();
        }
 }