Swift: split Xcode autobuild

swift/xcode-autobuilder/XcodeBuildRunner.cpp

@@ -0,0 +1,66 @@
+#include "XcodeBuildRunner.h"
+
+#include <vector>
+#include <iostream>
+#include <spawn.h>
+
+static int waitpid_status(pid_t child) {
+  int status;
+  while (waitpid(child, &status, 0) == -1) {
+    if (errno != EINTR) break;
+  }
+  return status;
+}
+
+extern char** environ;
+
+static bool exec(const std::vector<std::string>& argv) {
+  const char** c_argv = (const char**)calloc(argv.size() + 1, sizeof(char*));
+  for (size_t i = 0; i < argv.size(); i++) {
+    c_argv[i] = argv[i].c_str();
+  }
+  c_argv[argv.size()] = nullptr;
+
+  pid_t pid = 0;
+  if (posix_spawn(&pid, argv.front().c_str(), nullptr, nullptr, (char* const*)c_argv, environ) !=
+      0) {
+    std::cerr << "[xcode autobuilder] posix_spawn failed: " << strerror(errno) << "\n";
+    free(c_argv);
+    return false;
+  }
+  free(c_argv);
+  int status = waitpid_status(pid);
+  if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+    return false;
+  }
+  return true;
+}
+
+void buildTarget(Target& target, bool dryRun) {
+  std::vector<std::string> argv({"/usr/bin/xcodebuild", "build"});
+  if (!target.workspace.empty()) {
+    argv.push_back("-workspace");
+    argv.push_back(target.workspace);
+    argv.push_back("-scheme");
+  } else {
+    argv.push_back("-project");
+    argv.push_back(target.project);
+    argv.push_back("-target");
+  }
+  argv.push_back(target.name);
+  argv.push_back("CODE_SIGNING_REQUIRED=NO");
+  argv.push_back("CODE_SIGNING_ALLOWED=NO");
+
+  if (dryRun) {
+    std::string s;
+    for (auto& arg : argv) {
+      s += arg + " ";
+    }
+    std::cout << s << "\n";
+  } else {
+    if (!exec(argv)) {
+      std::cerr << "Build failed\n";
+      exit(1);
+    }
+  }
+}