From 1a8d7736a99c974462310e4efea2f47713255a8b Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Mon, 2 May 2022 19:50:11 +0200
Subject: Moc generation through ctor.

---
 ctor.cc | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 73 insertions(+), 9 deletions(-)

diff --git a/ctor.cc b/ctor.cc
index 2354499..7abd01b 100644
--- a/ctor.cc
+++ b/ctor.cc
@@ -1,12 +1,53 @@
 // -*- c++ -*-
 #include <libctor.h>
+#include <filesystem>
+#include <iostream>
 
 namespace
 {
-BuildConfigurations myConfigs()
+std::vector<Source> eval_mocs(const std::string& path,
+                              const std::vector<std::pair<std::string, std::string>>& moc_list)
 {
-	return
+	std::vector<Source> sources;
+	for(const auto& moc : moc_list)
 	{
+		std::filesystem::path input(moc.first);
+		std::filesystem::path output(moc.second);
+
+		std::filesystem::path fspath(path);
+
+		if(!std::filesystem::exists(fspath / input))
+		{
+			std::cerr << "Missing moc input file: " << input.string() << '\n';
+			exit(1);
+		}
+
+		if(!std::filesystem::exists(path / output) ||
+		   std::filesystem::last_write_time(path / input) >
+		   std::filesystem::last_write_time(path / output))
+		{
+			std::string cmd = "cd \"" + path + "\"; moc ";
+			cmd += "-o \"" + output.string() + "\" \"" + input.string() + "\"";
+			std::cerr << cmd << "\n";
+			auto ret = system(cmd.data());
+			if(ret != 0)
+			{
+				std::cerr << "moc generation failed: " << cmd << '\n';
+				exit(ret);
+			}
+		}
+		sources.push_back((path / output).string());
+	}
+
+	return sources;
+}
+
+BuildConfigurations myConfigs()
+{
+	//
+	// Qookie-cast client
+	//
+	BuildConfiguration qookie =
 		{
 			.target = "qookie",  // output filename
 			.sources = {
@@ -15,11 +56,8 @@ BuildConfigurations myConfigs()
 				"src/database_gourmet.cc",
 				"src/database_krecipes.cc",
 				"src/mainwindow.cc",
-				"src/moc_mainwindow.cc",
 				"src/viewer.cc",
-				"src/moc_viewer.cc",
 				"src/client.cc",
-				"src/moc_client.cc",
 			},
 			.flags = {
 				.cxxflags = {
@@ -40,12 +78,27 @@ BuildConfigurations myConfigs()
 					"-lsqlite3",
 				}
 			},
-		},
+		};
+	std::vector<Source> qookie_mocs =
+		eval_mocs("src",
+		          {
+		           { "mainwindow.h", "moc_mainwindow.cc"},
+		           { "viewer.h",     "moc_viewer.cc"},
+		           { "client.h",     "moc_client.cc"},
+		          });
+	for(const auto& moc : qookie_mocs)
+	{
+		qookie.sources.push_back(moc);
+	}
+
+	//
+	// Qookie-cast client
+	//
+	BuildConfiguration qookie_cast_client =
 		{
 			.target = "qookie-cast-client",  // output filename
 			.sources = {
 				"src/qookie-cast-client.cc",
-				"src/moc_qookie-cast-client.cc",
 			},
 			.flags = {
 				.cxxflags = {
@@ -67,8 +120,19 @@ BuildConfigurations myConfigs()
 //					"-lQt5WebKit",
 				}
 			},
-		}
-	};
+		};
+
+	std::vector<Source> qookie_cast_client_mocs =
+		eval_mocs("src",
+		          {
+		           { "qookie-cast-client.h", "moc_qookie-cast-client.cc"},
+		          });
+	for(const auto& moc : qookie_cast_client_mocs)
+	{
+		qookie_cast_client.sources.push_back(moc);
+	}
+
+	return {qookie, qookie_cast_client};
 }
 }
 
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