From 69528ba012ac2238f63464fb84e7623f3088603a Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sat, 19 Jun 2021 18:00:48 +0200
Subject: Add compilation database generation.

---
 task_cc.cc | 103 ++++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 64 insertions(+), 39 deletions(-)

(limited to 'task_cc.cc')

diff --git a/task_cc.cc b/task_cc.cc
index b5cc768..6c7e3b7 100644
--- a/task_cc.cc
+++ b/task_cc.cc
@@ -175,44 +175,7 @@ int TaskCC::runInner()
 		return 1;
 	}
 
-	std::string comp = compiler();
-	auto compiler_flags = flags();
-
-	std::vector<std::string> args;
-	args.push_back("-MMD");
-
-	if(std::filesystem::path(config.target).extension() == ".so")
-	{
-		// Add -fPIC arg to all contained object files
-		args.push_back("-fPIC");
-	}
-
-	args.push_back("-c");
-	args.push_back(std::string(sourceFile));
-	args.push_back("-o");
-	args.push_back(std::string(targetFile));
-
-	for(const auto& flag : compiler_flags)
-	{
-		// Is arg an added include path?
-		if(flag.substr(0, 2) == "-I")
-		{
-			std::string include_path = flag.substr(2);
-			include_path.erase(0, include_path.find_first_not_of(' '));
-			std::filesystem::path path(include_path);
-
-			// Is it relative?
-			if(path.is_relative())
-			{
-				path = (sourceDir / path).lexically_normal();
-				std::string new_include_path = "-I" + path.string();
-				args.push_back(new_include_path);
-				continue;
-			}
-		}
-
-		args.push_back(flag);
-	}
+	auto args = getCompilerArgs();
 
 	{ // Write flags to file.
 		std::ofstream flagsStream(flagsFile);
@@ -225,7 +188,8 @@ int TaskCC::runInner()
 			sourceFile.lexically_normal().string() << " => " <<
 			targetFile.lexically_normal().string() << "\n";
 	}
-	return execute(comp, args, settings.verbose > 0);
+
+	return execute(compiler(), args, settings.verbose > 0);
 }
 
 int TaskCC::clean()
@@ -261,6 +225,24 @@ std::string TaskCC::target() const
 	return targetFile;
 }
 
+std::string TaskCC::toJSON() const
+{
+	std::string json;
+	json += "\t{\n";
+	json += "\t\t\"directory\": \"" + sourceDir.string() + "\",\n";
+	json += "\t\t\"file\": \"" + sourceFile.lexically_normal().string() + "\",\n";
+	json += "\t\t\"output\": \"" + targetFile.string() + "\",\n";
+	json += "\t\t\"arguments\": [ \"" + compiler() + "\"";
+	auto args = getCompilerArgs();
+	for(const auto& arg : args)
+	{
+		json += ", \"" + arg + "\"";
+	}
+	json += " ]\n";
+	json += "\t}";
+	return json;
+}
+
 std::vector<std::string> TaskCC::flags() const
 {
 	if(std::string(sourceFile.extension()) == ".c")
@@ -292,3 +274,46 @@ std::string TaskCC::compiler() const
 	}
 	return "/usr/bin/g++";
 }
+
+std::vector<std::string> TaskCC::getCompilerArgs() const
+{
+	auto compiler_flags = flags();
+
+	std::vector<std::string> args;
+	args.push_back("-MMD");
+
+	if(std::filesystem::path(config.target).extension() == ".so")
+	{
+		// Add -fPIC arg to all contained object files
+		args.push_back("-fPIC");
+	}
+
+	args.push_back("-c");
+	args.push_back(std::string(sourceFile));
+	args.push_back("-o");
+	args.push_back(std::string(targetFile));
+
+	for(const auto& flag : compiler_flags)
+	{
+		// Is arg an added include path?
+		if(flag.substr(0, 2) == "-I")
+		{
+			std::string include_path = flag.substr(2);
+			include_path.erase(0, include_path.find_first_not_of(' '));
+			std::filesystem::path path(include_path);
+
+			// Is it relative?
+			if(path.is_relative())
+			{
+				path = (sourceDir / path).lexically_normal();
+				std::string new_include_path = "-I" + path.string();
+				args.push_back(new_include_path);
+				continue;
+			}
+		}
+
+		args.push_back(flag);
+	}
+
+	return args;
+}
-- 
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