Merge pull request #2856 from jon-turney/warning-location

Consolidate warning location formatting

4 files changed, 23 insertions, 13 deletions

diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index 1abc134..29b4033 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -1574,7 +1574,7 @@ class Interpreter(InterpreterBase):
         modname = args[0]
         if modname.startswith('unstable-'):
             plainname = modname.split('-', 1)[1]
-            mlog.warning('Module %s has no backwards or forwards compatibility and might not exist in future releases.' % modname)
+            mlog.warning('Module %s has no backwards or forwards compatibility and might not exist in future releases' % modname, location=node)
             modname = 'unstable_' + plainname
         if modname not in self.environment.coredata.modules:
             try:
@@ -1935,7 +1935,7 @@ to directly access options of other subprojects.''')
     @noKwargs
     def func_warning(self, node, args, kwargs):
         argstr = self.get_message_string_arg(node)
-        mlog.warning('%s in file %s, line %d' % (argstr, os.path.join(node.subdir, 'meson.build'), node.lineno))
+        mlog.warning(argstr, location=node)
 
     @noKwargs
     def func_error(self, node, args, kwargs):
@@ -2751,7 +2751,7 @@ root and issuing %s.
                     mlog.warning(
                         "The variable(s) %s in the input file %s are not "
                         "present in the given configuration data" % (
-                            var_list, inputfile))
+                            var_list, inputfile), location=node)
             else:
                 mesonlib.dump_conf_header(ofile_abs, conf.held_object)
             conf.mark_used()
diff --git a/mesonbuild/interpreterbase.py b/mesonbuild/interpreterbase.py
index 91f4bd3..9dc6b0f 100644
--- a/mesonbuild/interpreterbase.py
+++ b/mesonbuild/interpreterbase.py
@@ -18,7 +18,7 @@
 from . import mparser, mesonlib, mlog
 from . import environment, dependencies
 
-import os, copy, re
+import os, copy, re, types
 from functools import wraps
 
 # Decorators for method calls.
@@ -63,17 +63,19 @@ class permittedKwargs:
     def __call__(self, f):
         @wraps(f)
         def wrapped(s, node_or_state, args, kwargs):
+            loc = types.SimpleNamespace()
             if hasattr(s, 'subdir'):
-                subdir = s.subdir
-                lineno = s.current_lineno
+                loc.subdir = s.subdir
+                loc.lineno = s.current_lineno
             elif hasattr(node_or_state, 'subdir'):
-                subdir = node_or_state.subdir
-                lineno = node_or_state.current_lineno
+                loc.subdir = node_or_state.subdir
+                loc.lineno = node_or_state.current_lineno
+            else:
+                loc = None
             for k in kwargs:
                 if k not in self.permitted:
-                    fname = os.path.join(subdir, environment.build_filename)
-                    mlog.warning('''Passed invalid keyword argument "%s" in %s line %d.
-This will become a hard error in the future.''' % (k, fname, lineno))
+                    mlog.warning('''Passed invalid keyword argument "{}"'''.format(k), location=loc)
+                    mlog.warning('This will become a hard error in the future.')
             return f(s, node_or_state, args, kwargs)
         return wrapped
 
diff --git a/mesonbuild/mlog.py b/mesonbuild/mlog.py
index a0d07ec..aa2ac20 100644
--- a/mesonbuild/mlog.py
+++ b/mesonbuild/mlog.py
@@ -103,6 +103,13 @@ def log(*args, **kwargs):
     force_print(*arr, **kwargs)
 
 def warning(*args, **kwargs):
+    from . import environment
+
+    if kwargs.get('location'):
+        location = kwargs['location']
+        del kwargs['location']
+        args += ('in file {}, line {}.'.format(os.path.join(location.subdir, environment.build_filename), location.lineno),)
+
     log(yellow('WARNING:'), *args, **kwargs)
 
 # Format a list for logging purposes as a string. It separates
diff --git a/mesonbuild/mparser.py b/mesonbuild/mparser.py
index 782b7a7..eb03393 100644
--- a/mesonbuild/mparser.py
+++ b/mesonbuild/mparser.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os, re
+import re
 from .mesonlib import MesonException
 from . import mlog
 
@@ -368,7 +368,8 @@ class ArgumentNode:
 
     def set_kwarg(self, name, value):
         if name in self.kwargs:
-            mlog.warning('Keyword argument "%s" defined multiple times in file %s, line %d. This will be an error in future Meson releases.' % (name, os.path.join(self.subdir, 'meson.build'), self.lineno))
+            mlog.warning('Keyword argument "{}" defined multiple times'.format(name), location=self)
+            mlog.warning('This will be an error in future Meson releases.')
         self.kwargs[name] = value
 
     def num_args(self):