/// Whether phony cycles should warn or print an error.
bool phony_cycle_should_err;
+
+ /// Whether a depfile with multiple targets on separate lines should
+ /// warn or print an error.
+ bool depfile_distinct_target_lines_should_err;
};
/// The Ninja main() loads up a series of data structures; various tools need
// Just checking n isn't enough: If an old output is both in the build log
// and in the deps log, it will have a Node object in state_. (It will also
// have an in edge if one of its inputs is another output that's in the deps
- // log, but having a deps edge product an output thats input to another deps
+ // log, but having a deps edge product an output that's input to another deps
// edge is rare, and the first recompaction will delete all old outputs from
// the deps log, and then a second recompaction will clear the build log,
// which seems good enough for this corner case.)
"if targets are unspecified, builds the 'default' target (see manual).\n"
"\n"
"options:\n"
-" --version print ninja version (\"%s\")\n"
+" --version print ninja version (\"%s\")\n"
+" -v, --verbose show all command lines while building\n"
"\n"
" -C DIR change to DIR before doing anything else\n"
" -f FILE specify input build file [default=build.ninja]\n"
"\n"
-" -j N run N jobs in parallel [default=%d, derived from CPUs available]\n"
-" -k N keep going until N jobs fail [default=1]\n"
+" -j N run N jobs in parallel (0 means infinity) [default=%d on this system]\n"
+" -k N keep going until N jobs fail (0 means infinity) [default=1]\n"
" -l N do not start new jobs if the load average is greater than N\n"
" -n dry run (don't run commands but act like they succeeded)\n"
-" -v show all command lines while building\n"
"\n"
-" -d MODE enable debugging (use -d list to list modes)\n"
-" -t TOOL run a subtool (use -t list to list subtools)\n"
+" -d MODE enable debugging (use '-d list' to list modes)\n"
+" -t TOOL run a subtool (use '-t list' to list subtools)\n"
" terminates toplevel options; further flags are passed to the tool\n"
-" -w FLAG adjust warnings (use -w list to list warnings)\n",
+" -w FLAG adjust warnings (use '-w list' to list warnings)\n",
kNinjaVersion, config.parallelism);
}
// If we get here, the browse failed.
return 1;
}
-#endif // _WIN32
+#else
+int NinjaMain::ToolBrowse(const Options*, int, char**) {
+ Fatal("browse tool not supported on this platform");
+ return 1;
+}
+#endif
#if defined(_MSC_VER)
int NinjaMain::ToolMSVC(const Options* options, int argc, char* argv[]) {
TimeStamp mtime = disk_interface.Stat((*it)->path(), &err);
if (mtime == -1)
Error("%s", err.c_str()); // Log and ignore Stat() errors;
- printf("%s: #deps %d, deps mtime %d (%s)\n",
+ printf("%s: #deps %d, deps mtime %" PRId64 " (%s)\n",
(*it)->path().c_str(), deps->node_count, deps->mtime,
(!mtime || mtime > deps->mtime ? "STALE":"VALID"));
for (int i = 0; i < deps->node_count; ++i)
}
}
-int NinjaMain::ToolCompilationDatabase(const Options* options, int argc, char* argv[]) {
+enum EvaluateCommandMode {
+ ECM_NORMAL,
+ ECM_EXPAND_RSPFILE
+};
+string EvaluateCommandWithRspfile(Edge* edge, EvaluateCommandMode mode) {
+ string command = edge->EvaluateCommand();
+ if (mode == ECM_NORMAL)
+ return command;
+
+ string rspfile = edge->GetUnescapedRspfile();
+ if (rspfile.empty())
+ return command;
+
+ size_t index = command.find(rspfile);
+ if (index == 0 || index == string::npos || command[index - 1] != '@')
+ return command;
+
+ string rspfile_content = edge->GetBinding("rspfile_content");
+ size_t newline_index = 0;
+ while ((newline_index = rspfile_content.find('\n', newline_index)) !=
+ string::npos) {
+ rspfile_content.replace(newline_index, 1, 1, ' ');
+ ++newline_index;
+ }
+ command.replace(index - 1, rspfile.length() + 1, rspfile_content);
+ return command;
+}
+
+int NinjaMain::ToolCompilationDatabase(const Options* options, int argc,
+ char* argv[]) {
+ // The compdb tool uses getopt, and expects argv[0] to contain the name of
+ // the tool, i.e. "compdb".
+ argc++;
+ argv--;
+
+ EvaluateCommandMode eval_mode = ECM_NORMAL;
+
+ optind = 1;
+ int opt;
+ while ((opt = getopt(argc, argv, const_cast<char*>("hx"))) != -1) {
+ switch(opt) {
+ case 'x':
+ eval_mode = ECM_EXPAND_RSPFILE;
+ break;
+
+ case 'h':
+ default:
+ printf(
+ "usage: ninja -t compdb [options] [rules]\n"
+ "\n"
+ "options:\n"
+ " -x expand @rspfile style response file invocations\n"
+ );
+ return 1;
+ }
+ }
+ argv += optind;
+ argc -= optind;
+
bool first = true;
vector<char> cwd;
printf("\n {\n \"directory\": \"");
EncodeJSONString(&cwd[0]);
printf("\",\n \"command\": \"");
- EncodeJSONString((*e)->EvaluateCommand().c_str());
+ EncodeJSONString(EvaluateCommandWithRspfile(*e, eval_mode).c_str());
printf("\",\n \"file\": \"");
EncodeJSONString((*e)->inputs_[0]->path().c_str());
+ printf("\",\n \"output\": \"");
+ EncodeJSONString((*e)->outputs_[0]->path().c_str());
printf("\"\n }");
first = false;
/// Returns a Tool, or NULL if Ninja should exit.
const Tool* ChooseTool(const string& tool_name) {
static const Tool kTools[] = {
-#if defined(NINJA_HAVE_BROWSE)
{ "browse", "browse dependency graph in a web browser",
Tool::RUN_AFTER_LOAD, &NinjaMain::ToolBrowse },
-#endif
#if defined(_MSC_VER)
{ "msvc", "build helper for MSVC cl.exe (EXPERIMENTAL)",
Tool::RUN_AFTER_FLAGS, &NinjaMain::ToolMSVC },
if (name == "list") {
printf("warning flags:\n"
" dupbuild={err,warn} multiple build lines for one target\n"
-" phonycycle={err,warn} phony build statement references itself\n");
+" phonycycle={err,warn} phony build statement references itself\n"
+" depfilemulti={err,warn} depfile has multiple output paths on separate lines\n"
+ );
return false;
} else if (name == "dupbuild=err") {
options->dupe_edges_should_err = true;
} else if (name == "phonycycle=warn") {
options->phony_cycle_should_err = false;
return true;
+ } else if (name == "depfilemulti=err") {
+ options->depfile_distinct_target_lines_should_err = true;
+ return true;
+ } else if (name == "depfilemulti=warn") {
+ options->depfile_distinct_target_lines_should_err = false;
+ return true;
} else {
const char* suggestion =
SpellcheckString(name.c_str(), "dupbuild=err", "dupbuild=warn",
const option kLongOptions[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, OPT_VERSION },
+ { "verbose", no_argument, NULL, 'v' },
{ NULL, 0, NULL, 0 }
};
case 'j': {
char* end;
int value = strtol(optarg, &end, 10);
- if (*end != 0 || value <= 0)
+ if (*end != 0 || value < 0)
Fatal("invalid -j parameter");
- config->parallelism = value;
+
+ // We want to run N jobs in parallel. For N = 0, INT_MAX
+ // is close enough to infinite for most sane builds.
+ config->parallelism = value > 0 ? value : INT_MAX;
break;
}
case 'k': {
return -1;
}
-int real_main(int argc, char** argv) {
+NORETURN void real_main(int argc, char** argv) {
+ // Use exit() instead of return in this function to avoid potentially
+ // expensive cleanup when destructing NinjaMain.
BuildConfig config;
Options options = {};
options.input_file = "build.ninja";
+ options.dupe_edges_should_err = true;
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
const char* ninja_command = argv[0];
int exit_code = ReadFlags(&argc, &argv, &options, &config);
if (exit_code >= 0)
- return exit_code;
+ exit(exit_code);
+
+ if (options.depfile_distinct_target_lines_should_err) {
+ config.depfile_parser_options.depfile_distinct_target_lines_action_ =
+ kDepfileDistinctTargetLinesActionError;
+ }
if (options.working_dir) {
// The formatting of this string, complete with funny quotes, is
// None of the RUN_AFTER_FLAGS actually use a NinjaMain, but it's needed
// by other tools.
NinjaMain ninja(ninja_command, config);
- return (ninja.*options.tool->func)(&options, argc, argv);
+ exit((ninja.*options.tool->func)(&options, argc, argv));
}
// Limit number of rebuilds, to prevent infinite loops.
string err;
if (!parser.Load(options.input_file, &err)) {
Error("%s", err.c_str());
- return 1;
+ exit(1);
}
if (options.tool && options.tool->when == Tool::RUN_AFTER_LOAD)
- return (ninja.*options.tool->func)(&options, argc, argv);
+ exit((ninja.*options.tool->func)(&options, argc, argv));
if (!ninja.EnsureBuildDirExists())
- return 1;
+ exit(1);
if (!ninja.OpenBuildLog() || !ninja.OpenDepsLog())
- return 1;
+ exit(1);
if (options.tool && options.tool->when == Tool::RUN_AFTER_LOGS)
- return (ninja.*options.tool->func)(&options, argc, argv);
+ exit((ninja.*options.tool->func)(&options, argc, argv));
// Attempt to rebuild the manifest before building anything else
if (ninja.RebuildManifest(options.input_file, &err)) {
// In dry_run mode the regeneration will succeed without changing the
// manifest forever. Better to return immediately.
if (config.dry_run)
- return 0;
+ exit(0);
// Start the build over with the new manifest.
continue;
} else if (!err.empty()) {
Error("rebuilding '%s': %s", options.input_file, err.c_str());
- return 1;
+ exit(1);
}
int result = ninja.RunBuild(argc, argv);
if (g_metrics)
ninja.DumpMetrics();
- return result;
+ exit(result);
}
Error("manifest '%s' still dirty after %d tries\n",
options.input_file, kCycleLimit);
- return 1;
+ exit(1);
}
} // anonymous namespace
__try {
// Running inside __try ... __except suppresses any Windows error
// dialogs for errors such as bad_alloc.
- return real_main(argc, argv);
+ real_main(argc, argv);
}
__except(ExceptionFilter(GetExceptionCode(), GetExceptionInformation())) {
// Common error situations return exitCode=1. 2 was chosen to
return 2;
}
#else
- return real_main(argc, argv);
+ real_main(argc, argv);
#endif
}
projects / platform / upstream / ninja.git / blobdiff