[gnome-builder] make: Add C++ make template

[Christian Hergert <chergert src gnome org>]

commit ee296bfc1527077efe237c081dfde99540d04117
Author: carnage-mode <beta-stage tutanota com>
Date:   Thu Mar 10 05:15:23 2022 +0000

    make: Add C++ make template

 src/plugins/make/make.gresource.xml |  1 +
 src/plugins/make/make_plugin.py     | 20 ++++++++++++++------
 src/plugins/make/resources/Makefile | 14 +++++++++++++-
 src/plugins/make/resources/main.cpp | 12 ++++++++++++
 4 files changed, 40 insertions(+), 7 deletions(-)
---
diff --git a/src/plugins/make/make.gresource.xml b/src/plugins/make/make.gresource.xml
index d4facf356..3b4574cbc 100644
--- a/src/plugins/make/make.gresource.xml
+++ b/src/plugins/make/make.gresource.xml
@@ -3,6 +3,7 @@
   <gresource prefix="/plugins/make_plugin">
     <file compressed="true">resources/Makefile</file>
     <file compressed="true">resources/main.c</file>
+    <file compressed="true">resources/main.cpp</file>
     <file compressed="true">resources/.gitignore</file>
   </gresource>
 </gresources>
diff --git a/src/plugins/make/make_plugin.py b/src/plugins/make/make_plugin.py
index 54f3e9912..64c26969c 100644
--- a/src/plugins/make/make_plugin.py
+++ b/src/plugins/make/make_plugin.py
@@ -288,12 +288,20 @@ class MakeTemplateBase(Ide.TemplateBase, Ide.ProjectTemplate):
             'exec_name': name,
         }
 
-        files = {
-            'resources/.gitignore': '.gitignore',
-            'resources/Makefile': 'Makefile',
-            'resources/main.c': '%(exec_name)s.c',
-        }
-        self.prepare_files(files)
+        if self.language == 'c':
+            files = {
+                'resources/.gitignore': '.gitignore',
+                'resources/Makefile': 'Makefile',
+                'resources/main.c': '%(exec_name)s.c',
+            }
+            self.prepare_files(files)
+        elif self.language == 'c++':
+            files = {
+                'resources/.gitignore': '.gitignore',
+                'resources/Makefile': 'Makefile',
+                'resources/main.cpp': '%(exec_name)s.cpp',
+            }
+            self.prepare_files(files)
 
         modes = {}
 
diff --git a/src/plugins/make/resources/Makefile b/src/plugins/make/resources/Makefile
index 22735a6f1..859dd34b3 100644
--- a/src/plugins/make/resources/Makefile
+++ b/src/plugins/make/resources/Makefile
@@ -1,12 +1,25 @@
 all: {{exec_name}}
 
 
+{{if language == "c"}}
 WARNINGS = -Wall
 DEBUG = -ggdb -fno-omit-frame-pointer
 OPTIMIZE = -O2
 
+{{else if language == "c++"}}
+WARNINGS = -Wall -Weffc++ -Wextra -Wsign-conversion -pedantic-errors
+DEBUG = -ggdb -fno-omit-frame-pointer
+OPTIMIZE = -O2
+STANDARD = -std=c++2a
+{{end}}
+
+{{if language == "c"}}
 {{exec_name}}: Makefile {{exec_name}}.c
        $(CC) -o $@ $(WARNINGS) $(DEBUG) $(OPTIMIZE) {{exec_name}}.c
+{{else if language == "c++"}}
+{{exec_name}}: Makefile {{exec_name}}.cpp
+       $(CXX) -o $@ $(WARNINGS) $(DEBUG) $(OPTIMIZE) $(STANDARD) {{exec_name}}.cpp
+{{end}}
 
 clean:
        rm -f {{exec_name}}
@@ -20,4 +33,3 @@ install:
 run:
        ./{{exec_name}}
 
-
diff --git a/src/plugins/make/resources/main.cpp b/src/plugins/make/resources/main.cpp
new file mode 100644
index 000000000..d7fade965
--- /dev/null
+++ b/src/plugins/make/resources/main.cpp
@@ -0,0 +1,12 @@
+{{include "license.cpp"}}
+
+
+#include <iostream>
+#include <cstdlib>
+
+int
+main ()
+{
+  std::cout << "Hello, World!\n";
+  return EXIT_SUCCESS;
+}