838f86b0fd
It is considered bad form to use things from includes in headers, as these directives propagate to everywhere else and can make it confusing. types.hh (which is includes almost literally everywhere) had some of these directives, which this commit removes.
105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
#include <cerrno>
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#include <iostream>
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#include <glog/logging.h>
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#include "globals.hh"
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#include "legacy.hh"
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#include "profiles.hh"
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#include "shared.hh"
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#include "store-api.hh"
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using namespace nix;
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std::string deleteOlderThan;
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bool dryRun = false;
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/* If `-d' was specified, remove all old generations of all profiles.
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* Of course, this makes rollbacks to before this point in time
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* impossible. */
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void removeOldGenerations(const std::string& dir) {
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if (access(dir.c_str(), R_OK) != 0) {
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return;
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}
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bool canWrite = access(dir.c_str(), W_OK) == 0;
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for (auto& i : readDirectory(dir)) {
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checkInterrupt();
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auto path = dir + "/" + i.name;
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auto type = i.type == DT_UNKNOWN ? getFileType(path) : i.type;
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if (type == DT_LNK && canWrite) {
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std::string link;
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try {
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link = readLink(path);
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} catch (SysError& e) {
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if (e.errNo == ENOENT) {
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continue;
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}
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}
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if (link.find("link") != std::string::npos) {
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LOG(INFO) << "removing old generations of profile " << path;
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if (!deleteOlderThan.empty()) {
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deleteGenerationsOlderThan(path, deleteOlderThan, dryRun);
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} else {
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deleteOldGenerations(path, dryRun);
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}
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}
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} else if (type == DT_DIR) {
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removeOldGenerations(path);
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}
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}
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}
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static int _main(int argc, char** argv) {
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{
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bool removeOld = false;
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GCOptions options;
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parseCmdLine(argc, argv,
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[&](Strings::iterator& arg, const Strings::iterator& end) {
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if (*arg == "--help") {
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showManPage("nix-collect-garbage");
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} else if (*arg == "--version") {
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printVersion("nix-collect-garbage");
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} else if (*arg == "--delete-old" || *arg == "-d") {
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removeOld = true;
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} else if (*arg == "--delete-older-than") {
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removeOld = true;
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deleteOlderThan = getArg(*arg, arg, end);
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} else if (*arg == "--dry-run") {
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dryRun = true;
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} else if (*arg == "--max-freed") {
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auto maxFreed = getIntArg<long long>(*arg, arg, end, true);
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options.maxFreed = maxFreed >= 0 ? maxFreed : 0;
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} else {
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return false;
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}
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return true;
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});
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initPlugins();
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auto profilesDir = settings.nixStateDir + "/profiles";
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if (removeOld) {
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removeOldGenerations(profilesDir);
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}
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// Run the actual garbage collector.
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if (!dryRun) {
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auto store = openStore();
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options.action = GCOptions::gcDeleteDead;
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GCResults results;
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PrintFreed freed(true, results);
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store->collectGarbage(options, results);
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}
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return 0;
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}
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}
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static RegisterLegacyCommand s1("nix-collect-garbage", _main);
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