[PATCH] add Visual Studio Code configuration

[Paolo Bonzini]

Add configurations to build files with Visual Studio Code and
to retrieve the search path for headers from the compile_commands.json
file.

Using this configuration requires installing the Meson extension and
using a build subdirectory that matches the one configured in the
Meson extension itself.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 .vscode/c_cpp_properties.json | 13 +++++++++++++
 .vscode/settings.json         | 11 +++++++++++
 .vscode/tasks.json            | 23 +++++++++++++++++++++++
 scripts/rebuild.py            | 22 ++++++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 .vscode/c_cpp_properties.json
 create mode 100644 .vscode/settings.json
 create mode 100644 .vscode/tasks.json
 create mode 100755 scripts/rebuild.py

diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
new file mode 100644
index 0000000000..43f5fc1b4d
--- /dev/null
+++ b/.vscode/c_cpp_properties.json
@@ -0,0 +1,13 @@
+{
+    "configurations": [
+        {
+            "name": "qemu",
+            "includePath": [ "${default}", 
"${workspaceFolder}/linux-headers/**", "${workspaceFolder}/include/**", 
"${workspaceFolder}/+build/**"],
+            "compileCommands": 
"${workspaceFolder}/${config:mesonbuild.buildFolder}/compile_commands.json",
+            "intelliSenseMode": "linux-gcc-x64",
+            "cStandard": "c11",
+            "cppStandard": "c++14"
+        }
+    ],
+    "version": 4
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000000..efbbb4f88b
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,11 @@
+{
+       "files.associations": {
+               "*.mak": "makefile",
+               "*.c.inc": "c",
+               "*.h.inc": "c",
+               "*.json": "python",
+               "*.rst.inc": "restructuredtext",
+               "*.vert": "glsl",
+               "*.frag": "glsl"
+       }
+}
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 0000000000..362821043e
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,23 @@
+{
+       "version": "2.0.0",
+       "tasks": [
+               {
+                       "type": "cppbuild",
+                       "label": "C/C++: build active file with 
compile_commands.json",
+                       "command": "python3",
+                       "args": [
+                               "${workspaceFolder}/scripts/rebuild.py", 
"${file}"
+                       ],
+                       "options": {
+                               "cwd": 
"${workspaceFolder}/${config:mesonbuild.buildFolder}"
+                       },
+                       "problemMatcher": [
+                               "$gcc"
+                       ],
+                       "group": {
+                               "kind": "build",
+                               "isDefault": true
+                       }
+               }
+       ]
+}
diff --git a/scripts/rebuild.py b/scripts/rebuild.py
new file mode 100755
index 0000000000..e35e08f42d
--- /dev/null
+++ b/scripts/rebuild.py
@@ -0,0 +1,22 @@
+#! /usr/bin/env python3
+#
+# Author: Paolo Bonzini <pbonzini@redhat.com>
+#
+# This program compiles the input files using commands from the
+# compile_commands.json file.  (Unlike Make/ninja, the _source_
+# file is passed to the program rather than the targe).  It is
+# mostly intended to be called from editors.
+
+import os
+import sys
+import json
+
+with open('compile_commands.json') as f:
+    cc_json = json.load(f)
+
+paths = set((os.path.relpath(i) for i in sys.argv[1:]))
+for i in cc_json:
+    if i['file'] in paths:
+        os.chdir(i['directory'])
+        print(i['command'])
+        os.system(i['command'])
-- 
2.26.2