From 0159b72dbf048b0aa7d7b9ae85715205cb801e50 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sun, 14 Nov 2021 18:06:58 +0100
Subject: Evaluate externals in configure step end read from config map during
 compilation.

---
 src/rebuild.cc | 43 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 4 deletions(-)

(limited to 'src/rebuild.cc')

diff --git a/src/rebuild.cc b/src/rebuild.cc
index fc95b16..ff61695 100644
--- a/src/rebuild.cc
+++ b/src/rebuild.cc
@@ -13,11 +13,12 @@
 #include "libctor.h"
 #include "tasks.h"
 #include "build.h"
+#include "execute.h"
 
 std::array<BuildConfigurationEntry, 1024> configFiles;
 std::size_t numConfigFiles{0};
 
-int reg(std::vector<BuildConfiguration> (*cb)(),
+int reg(BuildConfigurations (*cb)(),
         const std::source_location location)
 {
 	// NOTE: std::cout cannot be used here
@@ -96,7 +97,7 @@ int unreg(const char* location)
 std::array<ExternalConfigurationEntry, 1024> externalConfigFiles;
 std::size_t numExternalConfigFiles{0};
 
-int reg(std::vector<ExternalConfiguration> (*cb)(),
+int reg(ExternalConfigurations (*cb)(),
         const std::source_location location)
 {
 	// NOTE: std::cout cannot be used here
@@ -130,7 +131,7 @@ bool contains(const std::vector<Source>& sources, const std::string& file)
 }
 }
 
-void recompileCheck(const Settings& global_settings, int argc, char* argv[],
+bool recompileCheck(const Settings& global_settings, int argc, char* argv[],
                     bool relaunch_allowed)
 {
 	using namespace std::string_literals;
@@ -207,7 +208,19 @@ void recompileCheck(const Settings& global_settings, int argc, char* argv[],
 	{
 		if(task->registerDepTasks(tasks))
 		{
-			return;
+			return false;
+		}
+	}
+
+	// Find out if reconfigure is needed
+	bool reconfigure{false};
+	for(auto task : tasks)
+	{
+		if(task->dirty() &&
+		   task->source() != "" && // only look at source files
+		   task->source() != "configuration.cc") // don't reconfigure if only configuration.cc is changed.
+		{
+			reconfigure |= true;
 		}
 	}
 
@@ -217,4 +230,26 @@ void recompileCheck(const Settings& global_settings, int argc, char* argv[],
 		std::cout << "Rebuilding config.\n";
 		build(settings, "ctor", tasks); // run for real
 	}
+
+	if(reconfigure)
+	{
+		std::vector<std::string> args;
+		args.push_back("reconfigure");
+		if(!relaunch_allowed)
+		{
+			args.push_back("--no-rerun");
+		}
+		for(int i = 1; i < argc; ++i)
+		{
+			args.push_back(argv[i]);
+		}
+		auto ret = execute(argv[0], args);
+		//if(ret != 0)
+		{
+			exit(ret);
+		}
+
+	}
+
+	return dirty_tasks;
 }
-- 
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