4 files changed, 15 insertions, 2 deletions
diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
index 354d25a..e9012e5 100644
--- a/mesonbuild/backend/backends.py
+++ b/mesonbuild/backend/backends.py
@@ -24,6 +24,7 @@ from ..mesonlib import MesonException, OrderedSet
 from ..mesonlib import classify_unity_sources
 from ..mesonlib import File
 from ..compilers import CompilerArgs
+from ..mupgrade import create_dump_dict
 from collections import OrderedDict
 import shlex
 
@@ -120,6 +121,7 @@ class OptionOverrideProxy:
 # This class contains the basic functionality that is needed by all backends.
 # Feel free to move stuff in and out of it as you see fit.
 class Backend:
+
     def __init__(self, build):
         self.build = build
         self.environment = build.environment
@@ -922,3 +924,11 @@ class Backend:
         for s in self.build.postconf_scripts:
             cmd = s['exe'] + s['args']
             subprocess.check_call(cmd, env=child_env)
+
+    def dump_state_file(self):
+        import json
+        build_dir = self.environment.get_build_dir()
+        dumpfile = os.path.join(build_dir, 'meson-private', 'upgrade-state.json')
+        s = create_dump_dict(self.environment, self.build)
+        with open(dumpfile, 'w') as f:
+            json.dump(s, f)
diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index 09c4904..cde2151 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -238,6 +238,7 @@ int dummy;
         # fully created.
         os.replace(tempfilename, outfilename)
         self.generate_compdb()
+        self.dump_state_file()
 
     # http://clang.llvm.org/docs/JSONCompilationDatabase.html
     def generate_compdb(self):
diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index d42e91d..aee3754 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -1,4 +1,4 @@
-# Copyright 2014-2016 The Meson development team
+# Copyright 2014-2018 The Meson development team
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -167,6 +167,7 @@ class Vs2010Backend(backends.Backend):
         self.generate_solution(sln_filename, projlist)
         self.generate_regen_info()
         Vs2010Backend.touch_regen_timestamp(self.environment.get_build_dir())
+        self.dump_state_file()
 
     @staticmethod
     def get_regen_stampfile(build_dir):
diff --git a/mesonbuild/backend/xcodebackend.py b/mesonbuild/backend/xcodebackend.py
index 9a9f88b..276e365 100644
--- a/mesonbuild/backend/xcodebackend.py
+++ b/mesonbuild/backend/xcodebackend.py
@@ -1,4 +1,4 @@
-# Copyright 2014-2016 The Meson development team
+# Copyright 2014-2018 The Meson development team
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -103,6 +103,7 @@ class XCodeBackend(backends.Backend):
             self.generate_xc_build_configuration()
             self.generate_xc_configurationList()
             self.generate_suffix()
+            self.dump_state_file()
 
     def get_xcodetype(self, fname):
         return self.xcodetypemap[fname.split('.')[-1]]