Split build system into library and driver

1 files changed, 41 insertions, 0 deletions

diff --git a/libbuild2/search.hxx b/libbuild2/search.hxx
new file mode 100644
index 0000000..b281b12
--- /dev/null
+++ b/libbuild2/search.hxx
@@ -0,0 +1,41 @@
+// file      : libbuild2/search.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef LIBBUILD2_SEARCH_HXX
+#define LIBBUILD2_SEARCH_HXX
+
+#include <libbuild2/types.hxx>
+#include <libbuild2/utility.hxx>
+
+#include <libbuild2/export.hxx>
+
+namespace build2
+{
+  class target;
+  class prerequisite_key;
+
+  // Search for an existing target in this prerequisite's scope.
+  //
+  LIBBUILD2_SYMEXPORT const target*
+  search_existing_target (const prerequisite_key&);
+
+  // Search for an existing file. If the prerequisite directory is relative,
+  // then look in the scope's src directory. Otherwise, if the absolute
+  // directory is inside the project's root scope, look there. In case of
+  // the absolute directory, if the scope is NULL, assume the file is not
+  // in src.
+  //
+  // Originally the plan was to have a target-type specific variable that
+  // contains the search paths. But there wasn't any need for this yet.
+  //
+  LIBBUILD2_SYMEXPORT const target*
+  search_existing_file (const prerequisite_key&);
+
+  // Create a new target in this prerequisite's scope.
+  //
+  LIBBUILD2_SYMEXPORT const target&
+  create_new_target (const prerequisite_key&);
+}
+
+#endif // LIBBUILD2_SEARCH_HXX