From 52586d9f4aa721e924d17c7e9a16cb0b98ddc05d Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 13 Aug 2008 05:02:01 +0000
Subject: [PATCH] Improve automatic package finding to detect directories with
 version number Make bootstrap.sh recognize libs as extracted from tarballs

---
 bootstrap.sh       |  8 ++--
 source/builder.cpp | 91 ++++++++++++++++++++++++++++++----------------
 source/builder.h   |  3 ++
 3 files changed, 66 insertions(+), 36 deletions(-)

diff --git a/bootstrap.sh b/bootstrap.sh
index f0f51a7..362343a 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -17,13 +17,13 @@ mkdir -p include/msp
 sources=source/*.cpp
 
 for i in $REQUIRED; do
-	path=$LIBPATH/$i
-	if [ ! -e $path ]; then
-		echo $i missing
+	path=`ls -1d $LIBPATH/*$i* 2>/dev/null | head -1`
+	if [ ! -d $path ]; then
+		echo msp$i missing
 		exit 1
 	fi
 	if [ $i = "core" ]; then
-		ln -sfT $path/source/* -t include/msp
+		ln -sf $path/source/* -t include/msp
 	else
 		ln -sfT $path/source include/msp/$i
 	fi
diff --git a/source/builder.cpp b/source/builder.cpp
index 257c931..58288ff 100644
--- a/source/builder.cpp
+++ b/source/builder.cpp
@@ -143,7 +143,7 @@ Builder::Builder(int argc, char **argv):
 			prefix=(FS::get_home_dir()/"local"/current_arch).str();
 	}
 	else
-		prefix=prfx;
+		prefix=FS::getcwd()/prfx;
 
 	warnings.push_back("all");
 	warnings.push_back("extra");
@@ -155,6 +155,9 @@ Builder::Builder(int argc, char **argv):
 		vector<string> warns=split(*i, ',');
 		warnings.insert(warnings.end(), warns.begin(), warns.end());
 	}
+
+	pkg_path.push_back(cwd/".");
+	pkg_path.push_back(cwd/"..");
 }
 
 /**
@@ -172,38 +175,14 @@ Package *Builder::get_package(const string &name)
 	if(i!=packages.end())
 		return i->second;
 
-	// Try to get source directory with pkgconfig
-	list<string> argv;
-	argv.push_back("pkg-config");
-	argv.push_back("--variable=source");
-	argv.push_back(name);
-	if(verbose>=4)
-		cout<<"Running "<<join(argv.begin(), argv.end())<<'\n';
-	string srcdir=strip(run_command(argv));
-
-	PathList dirs;
-	if(!srcdir.empty())
-		dirs.push_back(srcdir);
-
-	// Make some other guesses about the source directory
-	dirs.push_back(cwd/name);
-	dirs.push_back(cwd/".."/name);
-	if(!name.compare(0, 3, "msp"))
+	FS::Path path=get_package_location(name);
+	if(!path.empty() && !load_build_file(path/"Build"))
 	{
-		dirs.push_back(cwd/name.substr(3));
-		dirs.push_back(cwd/".."/name.substr(3));
+		i=packages.find(name);
+		if(i!=packages.end())
+			return i->second;
 	}
 
-	// Go through the candidate directories and look for a Build file
-	for(PathList::iterator j=dirs.begin(); j!=dirs.end(); ++j)
-		if(!load_build_file(*j/"Build"))
-		{
-			i=packages.find(name);
-			if(i!=packages.end())
-				return i->second;
-			break;
-		}
-
 	// Package source not found - create a binary package
 	Package *pkg=BinaryPackage::from_pkgconfig(*this, name);
 
@@ -400,7 +379,8 @@ int Builder::main()
 	if(conf_only)
 		return 0;
 
-	cout<<all_reqs.size()<<" active packages, "<<targets.size()<<" targets\n";
+	if(verbose>=1)
+		cout<<all_reqs.size()<<" active packages, "<<targets.size()<<" targets\n";
 	if(verbose>=2)
 	{
 		for(PackageList::const_iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
@@ -495,6 +475,52 @@ void Builder::usage(const char *reason, const char *argv0, bool brief)
 	}
 }
 
+/**
+Determines the source directory of a package.  pkg-config is consulted first,
+and if it fails, the package path is searched for matches.
+*/
+FS::Path Builder::get_package_location(const string &name)
+{
+	// Try to get source directory with pkgconfig
+	list<string> argv;
+	argv.push_back("pkg-config");
+	argv.push_back("--variable=source");
+	argv.push_back(name);
+	if(verbose>=4)
+		cout<<"Running "<<join(argv.begin(), argv.end())<<'\n';
+	string srcdir=strip(run_command(argv));
+	if(!srcdir.empty())
+		return srcdir;
+
+	if(pkg_dirs.empty())
+	{
+		for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
+		{
+			list<string> files=list_files(*i);
+			for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
+			{
+				FS::Path full=*i / *j;
+				if(FS::exists(full/"Build"))
+					pkg_dirs.push_back(full);
+			}
+		}
+	}
+
+	bool msp=!name.compare(0, 3, "msp");
+	for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
+	{
+		string base=basename(*i);
+		unsigned dash=base.rfind('-');
+
+		if(!base.compare(0, dash, name))
+			return *i;
+		else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
+			return *i;
+	}
+
+	return FS::Path();
+}
+
 /**
 Loads the given build file.
 
@@ -711,7 +737,8 @@ int Builder::do_build()
 		cout<<"Already up to date\n";
 		return 0;
 	}
-	cout<<"Will build "<<total<<" target(s)\n";
+	if(verbose>=1)
+		cout<<"Will build "<<total<<" target(s)\n";
 
 	vector<Action *> actions;
 
diff --git a/source/builder.h b/source/builder.h
index 2bfa32a..19885c5 100644
--- a/source/builder.h
+++ b/source/builder.h
@@ -88,6 +88,8 @@ private:
 
 	PackageMap   packages;
 	SourcePackage *main_pkg;
+	PathList     pkg_path;
+	PathList     pkg_dirs;
 
 	TargetMap    targets;
 	TargetList   new_tgts;
@@ -116,6 +118,7 @@ private:
 	Msp::FS::Path   prefix;
 	StringList      warnings;
 
+	Msp::FS::Path get_package_location(const std::string &);
 	int    load_build_file(const Msp::FS::Path &);
 	int    create_targets();
 	Target *get_header(const Msp::FS::Path &);
-- 
2.45.2