Add DependencyCache to speed up build preparation

[builder.git] / source / sourcefile.cpp

diff --git a/source/sourcefile.cpp b/source/sourcefile.cpp
index f24dd0786ea5f314ead5821735d122b98fa120e3..57866aa274565c3b088f285abb1b2c234223f8bf 100644 (file)
--- a/source/sourcefile.cpp
+++ b/source/sourcefile.cpp
@@ -26,15 +26,23 @@ from Builder.
 */
 void SourceFile::find_depends()
 {
-       ifstream in(name.c_str());
-       if(!in) return;
+       DependencyCache &deps_cache=comp->get_package().get_deps_cache();
+       if(mtime>deps_cache.get_mtime())
+       {
+               ifstream in(name.c_str());
+               if(!in) return;
+
+               Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
 
-       Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
+               string line;
+               while(getline(in, line))
+                       if(RegMatch match=r_include.match(line))
+                               includes.push_back(match[1].str);
 
-       string line;
-       while(getline(in, line))
-               if(RegMatch match=r_include.match(line))
-                       includes.push_back(match[1].str);
+               deps_cache.set_deps(name, includes);
+       }
+       else
+               includes=deps_cache.get_deps(name);
 
        const StringList &incpath=comp->get_build_info().incpath;
        const string &arch=comp->get_package().get_arch();