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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'base/file_system.dart';
import 'cmake_project.dart';
/// Extracts the `BINARY_NAME` from a project's CMake file.
///
/// Returns `null` if it cannot be found.
String? getCmakeExecutableName(CmakeBasedProject project) {
if (!project.cmakeFile.existsSync()) {
return null;
}
final RegExp nameSetPattern = RegExp(r'^\s*set\(BINARY_NAME\s*"(.*)"\s*\)\s*$');
for (final String line in project.cmakeFile.readAsLinesSync()) {
final RegExpMatch? match = nameSetPattern.firstMatch(line);
if (match != null) {
return match.group(1);
}
}
return null;
}
/// Extracts the `PACKAGE_GUID` from a project's CMake file.
///
/// Returns `null` if it cannot be found.
String? getCmakePackageGuid(File cmakeFile) {
if (!cmakeFile.existsSync()) {
return null;
}
final RegExp nameSetPattern = RegExp(r'^\s*set\(PACKAGE_GUID\s*"(.*)"\s*\)\s*$');
for (final String line in cmakeFile.readAsLinesSync()) {
final RegExpMatch? match = nameSetPattern.firstMatch(line);
if (match != null) {
return match.group(1);
}
}
return null;
}
String _escapeBackslashes(String s) {
return s.replaceAll(r'\', r'\\');
}
/// Writes a generated CMake configuration file for [project], including
/// variables expected by the build template and an environment variable list
/// for calling back into Flutter.
void writeGeneratedCmakeConfig(String flutterRoot, CmakeBasedProject project, Map<String, String> environment) {
// Only a limited set of variables are needed by the CMake files themselves,
// the rest are put into a list to pass to the re-entrant build step.
final String escapedFlutterRoot = _escapeBackslashes(flutterRoot);
final String escapedProjectDir = _escapeBackslashes(project.parent.directory.path);
final StringBuffer buffer = StringBuffer('''
# Generated code do not commit.
file(TO_CMAKE_PATH "$escapedFlutterRoot" FLUTTER_ROOT)
file(TO_CMAKE_PATH "$escapedProjectDir" PROJECT_DIR)
# Environment variables to pass to tool_backend.sh
list(APPEND FLUTTER_TOOL_ENVIRONMENT
"FLUTTER_ROOT=$escapedFlutterRoot"
"PROJECT_DIR=$escapedProjectDir"
''');
environment.forEach((String key, String value) {
final String configValue = _escapeBackslashes(value);
buffer.writeln(' "$key=$configValue"');
});
buffer.writeln(')');
project.generatedCmakeConfigFile
..createSync(recursive: true)
..writeAsStringSync(buffer.toString());
}