Meson: now reads build/meson-info/intro-targets.json available in newer meson versions

src/cmake.cpp

@@ -63,7 +63,7 @@ bool CMake::update_default_build(const boost::filesystem::path &default_build_pa
   auto exit_status = Terminal::get().process(Config::get().project.cmake.command + ' ' +
                                                  filesystem::escape_argument(project_path.string()) + " -DCMAKE_EXPORT_COMPILE_COMMANDS=ON", default_build_path);
   message.hide();
-  if(exit_status == EXIT_SUCCESS) {
+  if(exit_status == 0) {
 #ifdef _WIN32 //Temporary fix to MSYS2's libclang
     auto compile_commands_file = filesystem::read(compile_commands_path);
     auto replace_drive = [&compile_commands_file](const std::string &param) {
@@ -106,7 +106,7 @@ bool CMake::update_debug_build(const boost::filesystem::path &debug_build_path,
   auto exit_status = Terminal::get().process(Config::get().project.cmake.command + ' ' +
                                                  filesystem::escape_argument(project_path.string()) + " -DCMAKE_BUILD_TYPE=Debug", debug_build_path);
   message.hide();
-  if(exit_status == EXIT_SUCCESS)
+  if(exit_status == 0)
     return true;
   return false;
 }
@@ -117,9 +117,9 @@ boost::filesystem::path CMake::get_executable(const boost::filesystem::path &bui
   // are then used to identify if a file in compile_commands.json is part of an executable or not
 
   CompileCommands compile_commands(build_path);
-  std::vector<std::pair<boost::filesystem::path, boost::filesystem::path>> command_files_and_maybe_executables;
+  std::vector<std::pair<boost::filesystem::path, boost::filesystem::path>> source_files_and_maybe_executables;
   for(auto &command : compile_commands.commands) {
-    auto command_file = filesystem::get_normal_path(command.file);
+    auto source_file = filesystem::get_normal_path(command.file);
     auto values = command.parameter_values("-o");
     if(!values.empty()) {
       size_t pos;
@@ -127,7 +127,7 @@ boost::filesystem::path CMake::get_executable(const boost::filesystem::path &bui
         values[0].erase(pos, 11);
       if((pos = values[0].find(".dir")) != std::string::npos) {
         auto executable = command.directory / values[0].substr(0, pos);
-        command_files_and_maybe_executables.emplace_back(command_file, executable);
+        source_files_and_maybe_executables.emplace_back(source_file, executable);
       }
     }
   }
@@ -155,15 +155,15 @@ boost::filesystem::path CMake::get_executable(const boost::filesystem::path &bui
   boost::filesystem::path best_match_executable;
 
   for(auto &cmake_executable : cmake_executables) {
-    for(auto &command_file_and_maybe_executable : command_files_and_maybe_executables) {
+    for(auto &source_file_and_maybe_executable : source_files_and_maybe_executables) {
-      auto &command_file = command_file_and_maybe_executable.first;
+      auto &source_file = source_file_and_maybe_executable.first;
-      auto &maybe_executable = command_file_and_maybe_executable.second;
+      auto &maybe_executable = source_file_and_maybe_executable.second;
       if(cmake_executable == maybe_executable) {
-        if(command_file == file_path)
+        if(source_file == file_path)
           return maybe_executable;
-        auto command_file_directory = command_file.parent_path();
+        auto source_file_directory = source_file.parent_path();
-        if(filesystem::file_in_path(file_path, command_file_directory)) {
+        if(filesystem::file_in_path(file_path, source_file_directory)) {
-          auto size = std::distance(command_file_directory.begin(), command_file_directory.end());
+          auto size = std::distance(source_file_directory.begin(), source_file_directory.end());
           if(size > best_match_size) {
             best_match_size = size;
             best_match_executable = maybe_executable;
@@ -175,14 +175,14 @@ boost::filesystem::path CMake::get_executable(const boost::filesystem::path &bui
   if(!best_match_executable.empty())
     return best_match_executable;
 
-  for(auto &command_file_and_maybe_executable : command_files_and_maybe_executables) {
+  for(auto &source_file_and_maybe_executable : source_files_and_maybe_executables) {
-    auto &command_file = command_file_and_maybe_executable.first;
+    auto &source_file = source_file_and_maybe_executable.first;
-    auto &maybe_executable = command_file_and_maybe_executable.second;
+    auto &maybe_executable = source_file_and_maybe_executable.second;
-    if(command_file == file_path)
+    if(source_file == file_path)
       return maybe_executable;
-    auto command_file_directory = command_file.parent_path();
+    auto source_file_directory = source_file.parent_path();
-    if(filesystem::file_in_path(file_path, command_file_directory)) {
+    if(filesystem::file_in_path(file_path, source_file_directory)) {
-      auto size = std::distance(command_file_directory.begin(), command_file_directory.end());
+      auto size = std::distance(source_file_directory.begin(), source_file_directory.end());
       if(size > best_match_size) {
         best_match_size = size;
         best_match_executable = maybe_executable;

src/meson.cpp

@@ -6,6 +6,7 @@
 #include "terminal.hpp"
 #include "utility.hpp"
 #include <boost/optional.hpp>
+#include <boost/property_tree/json_parser.hpp>
 #include <regex>
 
 Meson::Meson(const boost::filesystem::path &path) {
@@ -63,7 +64,7 @@ bool Meson::update_default_build(const boost::filesystem::path &default_build_pa
                                                  (compile_commands_exists ? "--internal regenerate " : "") +
                                                  "--buildtype plain " + filesystem::escape_argument(project_path.string()), default_build_path);
   message.hide();
-  if(exit_status == EXIT_SUCCESS)
+  if(exit_status == 0)
     return true;
   return false;
 }
@@ -91,7 +92,7 @@ bool Meson::update_debug_build(const boost::filesystem::path &debug_build_path,
                                                  (compile_commands_exists ? "--internal regenerate " : "") +
                                                  "--buildtype debug " + filesystem::escape_argument(project_path.string()), debug_build_path);
   message.hide();
-  if(exit_status == EXIT_SUCCESS)
+  if(exit_status == 0)
     return true;
   return false;
 }
@@ -101,19 +102,48 @@ boost::filesystem::path Meson::get_executable(const boost::filesystem::path &bui
 
   ssize_t best_match_size = -1;
   boost::filesystem::path best_match_executable;
+
   for(auto &command : compile_commands.commands) {
-    auto command_file = filesystem::get_normal_path(command.file);
+    auto source_file = filesystem::get_normal_path(command.file);
     auto values = command.parameter_values("-o");
     if(!values.empty()) {
       size_t pos;
       if((pos = values[0].find('@')) != std::string::npos) {
         if(starts_with(values[0], pos + 1, "exe")) {
           auto executable = build_path / values[0].substr(0, pos);
-          if(command_file == file_path)
+          if(source_file == file_path)
+            return executable;
+          auto source_file_directory = source_file.parent_path();
+          if(filesystem::file_in_path(file_path, source_file_directory)) {
+            auto size = std::distance(source_file_directory.begin(), source_file_directory.end());
+            if(size > best_match_size) {
+              best_match_size = size;
+              best_match_executable = executable;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  if(best_match_executable.empty()) { // Newer Meson outputs intro-targets.json that can be used to find executable
+    boost::property_tree::ptree pt;
+    try {
+      boost::property_tree::json_parser::read_json((build_path / "meson-info" / "intro-targets.json").string(), pt);
+      for(auto &target : pt) {
+        if(target.second.get<std::string>("type") == "executable") {
+          auto filenames = target.second.get_child("filename");
+          if(filenames.empty()) // No executable file found
+            break;
+          auto executable = filesystem::get_normal_path(filenames.begin()->second.get<std::string>(""));
+          for(auto &target_source : target.second.get_child("target_sources")) {
+            for(auto &source : target_source.second.get_child("sources")) {
+              auto source_file = filesystem::get_normal_path(source.second.get<std::string>(""));
+              if(source_file == file_path)
                 return executable;
-          auto command_file_directory = command_file.parent_path();
+              auto source_file_directory = source_file.parent_path();
-          if(filesystem::file_in_path(file_path, command_file_directory)) {
+              if(filesystem::file_in_path(file_path, source_file_directory)) {
-            auto size = std::distance(command_file_directory.begin(), command_file_directory.end());
+                auto size = std::distance(source_file_directory.begin(), source_file_directory.end());
                 if(size > best_match_size) {
                   best_match_size = size;
                   best_match_executable = executable;
@@ -123,6 +153,10 @@ boost::filesystem::path Meson::get_executable(const boost::filesystem::path &bui
           }
         }
       }
+    }
+    catch(...) {
+    }
+  }
 
   return best_match_executable;
 }

tests/compile_commands_test.cpp

@@ -15,9 +15,9 @@ int main() {
     g_assert(!system_include_paths.include_paths.empty());
   }
   {
-    CompileCommands compile_commands(tests_path / "meson_test_files" / "build");
+    CompileCommands compile_commands(tests_path / "meson_old_test_files" / "build");
 
-    g_assert(compile_commands.commands.at(0).directory == "jucipp/tests/meson_test_files/build");
+    g_assert(compile_commands.commands.at(0).directory == "jucipp/tests/meson_old_test_files/build");
 
     g_assert_cmpuint(compile_commands.commands.size(), ==, 5);
 
@@ -31,7 +31,7 @@ int main() {
     g_assert_cmpuint(parameter_values.size(), ==, 1);
     g_assert_cmpstr(parameter_values.at(0).c_str(), ==, "hello_lib@sta/main.cpp.o");
 
-    g_assert(boost::filesystem::canonical(compile_commands.commands.at(0).file) == tests_path / "meson_test_files" / "main.cpp");
+    g_assert(boost::filesystem::canonical(compile_commands.commands.at(0).file) == tests_path / "meson_old_test_files" / "main.cpp");
   }
 
   {

tests/meson_build_test.cpp

@@ -4,8 +4,10 @@
 
 int main() {
   auto tests_path = boost::filesystem::canonical(JUCI_TESTS_PATH);
-  auto meson_test_files_path = boost::filesystem::canonical(tests_path / "meson_test_files");
 
+  // Test old meson versions
+  {
+    auto meson_test_files_path = boost::filesystem::canonical(tests_path / "meson_old_test_files");
     {
       Meson meson(meson_test_files_path / "a_subdir");
       g_assert(meson.project_path == meson_test_files_path);
@@ -32,3 +34,37 @@ int main() {
     build = Project::Build::create(meson_test_files_path / "a_subdir");
     g_assert(dynamic_cast<Project::MesonBuild *>(build.get()));
   }
+
+  // Test new meson versions
+  {
+    auto meson_test_files_path = boost::filesystem::canonical(tests_path / "meson_test_files");
+    /// Paths in meson-info are absolute, and this path is used in intro-targets.json
+    auto virtual_test_files_path = boost::filesystem::path("/") / "home" / "test" / "meson_test_files";
+
+    {
+      Meson meson(meson_test_files_path / "a_subdir");
+      g_assert(meson.project_path == meson_test_files_path);
+    }
+
+    {
+      Meson meson(meson_test_files_path);
+      g_assert(meson.project_path == meson_test_files_path);
+
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "main.cpp") == virtual_test_files_path / "build" / "hello");
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "another_file.cpp") == virtual_test_files_path / "build" / "another_executable");
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "a_subdir" / "main.cpp") == virtual_test_files_path / "build" / "a_subdir" / "hello2");
+
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "non_existing_file.cpp") == virtual_test_files_path / "build" / "hello");
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path) == virtual_test_files_path / "build" / "hello");
+
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "a_subdir") == virtual_test_files_path / "build" / "a_subdir" / "hello2");
+      g_assert(meson.get_executable(meson_test_files_path / "build", virtual_test_files_path / "a_subdir" / "non_existing_file.cpp") == virtual_test_files_path / "build" / "a_subdir" / "hello2");
+    }
+
+    auto build = Project::Build::create(meson_test_files_path);
+    g_assert(dynamic_cast<Project::MesonBuild *>(build.get()));
+
+    build = Project::Build::create(meson_test_files_path / "a_subdir");
+    g_assert(dynamic_cast<Project::MesonBuild *>(build.get()));
+  }
+}

tests/meson_old_test_files/a_subdir/main.cpp

@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main() {
+  std::cout << "Hello World\n";
+}

tests/meson_old_test_files/a_subdir/meson.build

@@ -0,0 +1 @@
+executable('hello2', 'main.cpp', cpp_args: compiler_args)

tests/meson_old_test_files/another_file.cpp

@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main() {
+  std::cout << "Hello World\n";
+}

tests/meson_old_test_files/build/compile_commands.json

@@ -0,0 +1,27 @@
+[
+  {
+    "directory": "jucipp/tests/meson_old_test_files/build",
+    "command": "c++  '-Ihello_lib@sta' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'hello_lib@sta/main.cpp.o' '-MF' 'hello_lib@sta/main.cpp.o.d' -o 'hello_lib@sta/main.cpp.o' -c ../main.cpp",
+    "file": "../main.cpp"
+  },
+  {
+    "directory": "jucipp/tests/meson_old_test_files/build",
+    "command": "c++  '-Ihello@exe' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'hello@exe/main.cpp.o' '-MF' 'hello@exe/main.cpp.o.d' -o 'hello@exe/main.cpp.o' -c ../main.cpp",
+    "file": "../main.cpp"
+  },
+  {
+    "directory": "jucipp/tests/meson_old_test_files/build",
+    "command": "c++  '-Ia_subdir/hello2@exe' '-I../a_subdir' '-Ia_subdir' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'a_subdir/hello2@exe/main.cpp.o' '-MF' 'a_subdir/hello2@exe/main.cpp.o.d' -o 'a_subdir/hello2@exe/main.cpp.o' -c ../a_subdir/main.cpp",
+    "file": "../a_subdir/main.cpp"
+  },
+  {
+    "directory": "jucipp/tests/meson_old_test_files/build",
+    "command": "c++  '-Ianother_executable@exe' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'another_executable@exe/another_file.cpp.o' '-MF' 'another_executable@exe/another_file.cpp.o.d' -o 'another_executable@exe/another_file.cpp.o' -c ../another_file.cpp",
+    "file": "../another_file.cpp"
+  },
+  {
+    "directory": "jucipp/tests/meson_old_test_files/build",
+    "command": "'te\\'s\"t'  te\\ st test te\\\\st te\\\\\\\\st",
+    "file": "../parse_test.cpp"
+  }
+]

tests/meson_old_test_files/main.cpp

@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main() {
+  std::cout << "Hello World\n";
+}

tests/meson_old_test_files/meson.build

@@ -0,0 +1,11 @@
+project('hello.world', 'cpp')
+
+compiler_args = ['-std=c++11', '-Wall', '-Wextra']
+
+static_library('hello_lib', 'main.cpp', cpp_args: compiler_args)
+
+executable('hello', 'main.cpp', cpp_args: compiler_args)
+
+executable('another_executable', 'another_file.cpp', cpp_args: compiler_args)
+
+subdir('a_subdir')

tests/meson_test_files/build/compile_commands.json

@@ -1,27 +1,26 @@
 [
   {
-    "directory": "jucipp/tests/meson_test_files/build",
+    "directory": "/home/test/meson_test_files/build",
-    "command": "c++  '-Ihello_lib@sta' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'hello_lib@sta/main.cpp.o' '-MF' 'hello_lib@sta/main.cpp.o.d' -o 'hello_lib@sta/main.cpp.o' -c ../main.cpp",
+    "command": "c++ -Ilibhello_lib.a.p -I. -I.. -Xclang -fcolor-diagnostics -pipe -std=c++11 -Wall -Wextra -MD -MQ libhello_lib.a.p/main.cpp.o -MF libhello_lib.a.p/main.cpp.o.d -o libhello_lib.a.p/main.cpp.o -c ../main.cpp",
-    "file": "../main.cpp"
+    "file": "../main.cpp",
+    "output": "libhello_lib.a.p/main.cpp.o"
   },
   {
-    "directory": "jucipp/tests/meson_test_files/build",
+    "directory": "/home/test/meson_test_files/build",
-    "command": "c++  '-Ihello@exe' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'hello@exe/main.cpp.o' '-MF' 'hello@exe/main.cpp.o.d' -o 'hello@exe/main.cpp.o' -c ../main.cpp",
+    "command": "c++ -Ihello.p -I. -I.. -Xclang -fcolor-diagnostics -pipe -std=c++11 -Wall -Wextra -MD -MQ hello.p/main.cpp.o -MF hello.p/main.cpp.o.d -o hello.p/main.cpp.o -c ../main.cpp",
-    "file": "../main.cpp"
+    "file": "../main.cpp",
+    "output": "hello.p/main.cpp.o"
   },
   {
-    "directory": "jucipp/tests/meson_test_files/build",
+    "directory": "/home/test/meson_test_files/build",
-    "command": "c++  '-Ia_subdir/hello2@exe' '-I../a_subdir' '-Ia_subdir' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'a_subdir/hello2@exe/main.cpp.o' '-MF' 'a_subdir/hello2@exe/main.cpp.o.d' -o 'a_subdir/hello2@exe/main.cpp.o' -c ../a_subdir/main.cpp",
+    "command": "c++ -Ianother_executable.p -I. -I.. -Xclang -fcolor-diagnostics -pipe -std=c++11 -Wall -Wextra -MD -MQ another_executable.p/another_file.cpp.o -MF another_executable.p/another_file.cpp.o.d -o another_executable.p/another_file.cpp.o -c ../another_file.cpp",
-    "file": "../a_subdir/main.cpp"
+    "file": "../another_file.cpp",
+    "output": "another_executable.p/another_file.cpp.o"
   },
   {
-    "directory": "jucipp/tests/meson_test_files/build",
+    "directory": "/home/test/meson_test_files/build",
-    "command": "c++  '-Ianother_executable@exe' '-I..' '-I.' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' '-std=c++11' '-Wall' '-Wextra' '-O0' '-g' '-MMD' '-MQ' 'another_executable@exe/another_file.cpp.o' '-MF' 'another_executable@exe/another_file.cpp.o.d' -o 'another_executable@exe/another_file.cpp.o' -c ../another_file.cpp",
+    "command": "c++ -Ia_subdir/hello2.p -Ia_subdir -I../a_subdir -Xclang -fcolor-diagnostics -pipe -std=c++11 -Wall -Wextra -MD -MQ a_subdir/hello2.p/main.cpp.o -MF a_subdir/hello2.p/main.cpp.o.d -o a_subdir/hello2.p/main.cpp.o -c ../a_subdir/main.cpp",
-    "file": "../another_file.cpp"
+    "file": "../a_subdir/main.cpp",
-  },
+    "output": "a_subdir/hello2.p/main.cpp.o"
-  {
-    "directory": "jucipp/tests/meson_test_files/build",
-    "command": "'te\\'s\"t'  te\\ st test te\\\\st te\\\\\\\\st",
-    "file": "../parse_test.cpp"
   }
 ]

tests/meson_test_files/build/meson-info/intro-targets.json

@@ -0,0 +1 @@
+[{"name": "hello_lib", "id": "hello_lib@sta", "type": "static library", "defined_in": "/home/test/meson_test_files/meson.build", "filename": ["/home/test/meson_test_files/build/libhello_lib.a"], "build_by_default": true, "target_sources": [{"language": "cpp", "compiler": ["c++"], "parameters": ["-I/home/test/meson_test_files/build/libhello_lib.a.p", "-I/home/test/meson_test_files/build", "-I/home/test/meson_test_files", "-Xclang", "-fcolor-diagnostics", "-pipe", "-std=c++11", "-Wall", "-Wextra"], "sources": ["/home/test/meson_test_files/main.cpp"], "generated_sources": []}], "subproject": null, "installed": false}, {"name": "hello", "id": "hello@exe", "type": "executable", "defined_in": "/home/test/meson_test_files/meson.build", "filename": ["/home/test/meson_test_files/build/hello"], "build_by_default": true, "target_sources": [{"language": "cpp", "compiler": ["c++"], "parameters": ["-I/home/test/meson_test_files/build/hello.p", "-I/home/test/meson_test_files/build", "-I/home/test/meson_test_files", "-Xclang", "-fcolor-diagnostics", "-pipe", "-std=c++11", "-Wall", "-Wextra"], "sources": ["/home/test/meson_test_files/main.cpp"], "generated_sources": []}], "subproject": null, "installed": false}, {"name": "another_executable", "id": "another_executable@exe", "type": "executable", "defined_in": "/home/test/meson_test_files/meson.build", "filename": ["/home/test/meson_test_files/build/another_executable"], "build_by_default": true, "target_sources": [{"language": "cpp", "compiler": ["c++"], "parameters": ["-I/home/test/meson_test_files/build/another_executable.p", "-I/home/test/meson_test_files/build", "-I/home/test/meson_test_files", "-Xclang", "-fcolor-diagnostics", "-pipe", "-std=c++11", "-Wall", "-Wextra"], "sources": ["/home/test/meson_test_files/another_file.cpp"], "generated_sources": []}], "subproject": null, "installed": false}, {"name": "hello2", "id": "f94d950@@hello2@exe", "type": "executable", "defined_in": "/home/test/meson_test_files/a_subdir/meson.build", "filename": ["/home/test/meson_test_files/build/a_subdir/hello2"], "build_by_default": true, "target_sources": [{"language": "cpp", "compiler": ["c++"], "parameters": ["-I/home/test/meson_test_files/build/a_subdir/hello2.p", "-I/home/test/meson_test_files/build/a_subdir", "-I/home/test/meson_test_files/a_subdir", "-Xclang", "-fcolor-diagnostics", "-pipe", "-std=c++11", "-Wall", "-Wextra"], "sources": ["/home/test/meson_test_files/a_subdir/main.cpp"], "generated_sources": []}], "subproject": null, "installed": false}]