<commit_before>#include "store-api.hh"
#include "profiles.hh"
#include "shared.hh"
#include "globals.hh"

#include <iostream>

using namespace nix;

std::string deleteOlderThan;
bool dryRun = false;


/* If `-d' was specified, remove all old generations of all profiles.
 * Of course, this makes rollbacks to before this point in time
 * impossible. */

void removeOldGenerations(std::string dir)
{
    if (access(dir.c_str(), R_OK) != 0) return;

    bool canWrite = access(dir.c_str(), W_OK) == 0;

    for (auto & i : readDirectory(dir)) {
        checkInterrupt();

        auto path = dir + "/" + i.name;
        auto type = i.type == DT_UNKNOWN ? getFileType(path) : i.type;

        if (type == DT_LNK && canWrite) {
            auto link = readLink(path);
            if (link.find("link") != string::npos) {
                printMsg(lvlInfo, format("removing old generations of profile %1%") % path);
                if (deleteOlderThan != "")
                    deleteGenerationsOlderThan(path, deleteOlderThan, dryRun);
                else
                    deleteOldGenerations(path, dryRun);
            }
        } else if (type == DT_DIR) {
            removeOldGenerations(path);
        }
    }
}

int main(int argc, char * * argv)
{
    bool removeOld = false;
    Strings extraArgs;

    return handleExceptions(argv[0], [&]() {
        initNix();

        parseCmdLine(argc, argv, [&](Strings::iterator & arg, const Strings::iterator & end) {
            if (*arg == "--help")
                showManPage("nix-collect-garbage");
            else if (*arg == "--version")
                printVersion("nix-collect-garbage");
            else if (*arg == "--delete-old" || *arg == "-d") removeOld = true;
            else if (*arg == "--delete-older-than") {
                removeOld = true;<commit_msg>nix-collect-garbage: Handle ENOENT<commit_after>#include "store-api.hh"
#include "profiles.hh"
#include "shared.hh"
#include "globals.hh"

#include <iostream>

using namespace nix;

std::string deleteOlderThan;
bool dryRun = false;


/* If `-d' was specified, remove all old generations of all profiles.
 * Of course, this makes rollbacks to before this point in time
 * impossible. */

void removeOldGenerations(std::string dir)
{
    if (access(dir.c_str(), R_OK) != 0) return;

    bool canWrite = access(dir.c_str(), W_OK) == 0;

    for (auto & i : readDirectory(dir)) {
        checkInterrupt();

        auto path = dir + "/" + i.name;
        auto type = i.type == DT_UNKNOWN ? getFileType(path) : i.type;

        if (type == DT_LNK && canWrite) {
            std::string link;
            try {
                link = readLink(path);
            } catch (SysError & e) {
                if (e.errNo == ENOENT) continue;
            }
            if (link.find("link") != string::npos) {
                printMsg(lvlInfo, format("removing old generations of profile %1%") % path);
                if (deleteOlderThan != "")
                    deleteGenerationsOlderThan(path, deleteOlderThan, dryRun);
                else
                    deleteOldGenerations(path, dryRun);
            }
        } else if (type == DT_DIR) {
            removeOldGenerations(path);
        }
    }
}

int main(int argc, char * * argv)
{
    bool removeOld = false;
    Strings extraArgs;

    return handleExceptions(argv[0], [&]() {
        initNix();

        parseCmdLine(argc, argv, [&](Strings::iterator & arg, const Strings::iterator & end) {
            if (*arg == "--help")
                showManPage("nix-collect-garbage");
            else if (*arg == "--version")
                printVersion("nix-collect-garbage");
            else if (*arg == "--delete-old" || *arg == "-d") removeOld = true;
            else if (*arg == "--delete-older-than") {
                removeOld = true;
{'fraction_non_alphanumeric': 0.14214659685863873, 'fraction_numerical': 0.0020942408376963353, 'mean_word_length': 2.119183673469388, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5387509', 'n_tokens_mistral': 1177, 'n_tokens_neox': 1132, 'n_words': 296}