Import of the watch repository from Pebble

waftools/show_configure.py

@@ -0,0 +1,74 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import os
+import pipes
+
+from waflib import ConfigSet, Options
+from waflib.Build import BuildContext
+from waflib.Configure import conf
+
+
+def load_lockfile(env, basepath):
+    lockfile_path = os.path.join(basepath, Options.lockfile)
+    try:
+        env.load(lockfile_path)
+    except IOError:
+        raise ValueError('{} is not configured yet'.format(os.path.basename(os.getcwd())))
+    except Exception:
+        raise ValueError('Could not load {}'.format(lockfile_path))
+
+
+@conf
+def get_lockfile(ctx):
+    env = ConfigSet.ConfigSet()
+
+    try:
+        load_lockfile(env, ctx.out_dir)
+    except ValueError:
+        try:
+            load_lockfile(env, ctx.top_dir)
+        except ValueError as err:
+            ctx.fatal(str(err))
+            return
+
+    return env
+
+
+class show_configure(BuildContext):
+    """shows the last used configure command"""
+    cmd = 'show_configure'
+
+    def execute_build(ctx):
+        env = ctx.get_lockfile()
+        if not env:
+            return
+
+        argv = env.argv
+
+        # Configure time environment vars
+        for var in ['CFLAGS']:
+            if var in env.environ:
+                argv = ['{}={}'.format(var, pipes.quote(env.environ[var]))] + argv
+
+        # Persistent environment vars
+        for var in ['WAFLOCK']:
+            if var in env.environ:
+                argv = ['export {}={};'.format(var, pipes.quote(env.environ[var]))] + argv
+
+        # Print and force waf to complete without further output
+        print(' '.join(argv))
+        exit()