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/*
* Copyright (C) Serenity Cybersecurity, LLC <license@futurecrew.ru>
* Author: Gleb Popov <arrowd@FreeBSD.org>
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <pkg.h>
#include "PackageView.hpp"
class Jobs {
public:
class iterator {
friend class Jobs;
public:
bool operator==(const iterator& other) const {
return pkgIter == other.pkgIter;
}
bool operator!=(const iterator& other) const {
return pkgIter != other.pkgIter;
}
iterator& operator++() {
if (!pkg_jobs_iter(jobsHandle, &pkgIter, &newPkg, &oldPkg, &type))
pkgIter = nullptr;
return *this;
}
PackageView oldPkgView() const { return oldPkg; }
PackageView newPkgView() const { return newPkg; }
pkg* oldPkgHandle() const { return oldPkg; }
pkg* newPkgHandle() const { return newPkg; }
int itemType() const { return type; }
private:
pkg_jobs* jobsHandle;
void* pkgIter = nullptr;
pkg* oldPkg;
pkg* newPkg;
int type;
};
Jobs(pkg_jobs_t jobsType, pkgdb* dbHandle, const char* _context = "")
: context(_context), jobsHandle(nullptr), jobsFlags(PKG_FLAG_NONE) {
if (pkg_jobs_new(&jobsHandle, jobsType, dbHandle) != EPKG_OK)
g_error("%s: pkg_jobs_new failed", context);
}
Jobs& operator<<(pkg_flags flag) {
jobsFlags = static_cast<pkg_flags> (jobsFlags | flag);
return *this;
}
void setFlags(pkg_flags flags) { jobsFlags = flags; }
void setDestination(const std::string& dest) const { setDestination(dest.c_str()); }
void setDestination(const char* dest) const {
if (pkg_jobs_set_destdir(jobsHandle, dest) != EPKG_OK)
g_error("%s: pkg_jobs_add failed", context);
}
void add(match_t matchType, char **argv, int argc) {
if (pkg_jobs_add(jobsHandle, matchType, argv, argc) == EPKG_FATAL)
g_error("%s: pkg_jobs_add failed", context);
}
void add(match_t matchType, std::vector<char*> argv) {
if (pkg_jobs_add(jobsHandle, matchType, argv.data(), argv.size()) == EPKG_FATAL)
g_error("%s: pkg_jobs_add failed", context);
}
int solve() {
pkg_jobs_set_flags(jobsHandle, jobsFlags);
if (pkg_jobs_solve(jobsHandle) != EPKG_OK)
g_warning("%s: pkg_jobs_solve failed", context);
jobsCount = pkg_jobs_count(jobsHandle);
return jobsCount;
}
int count() const { return jobsCount; }
bool hasLockedPackages() const { return pkg_jobs_has_lockedpkgs(jobsHandle); }
bool apply() {
int retcode;
do {
retcode = pkg_jobs_apply(jobsHandle);
if (retcode == EPKG_CONFLICT) {
g_warning("Conflicts with the existing packages "
"have been found. One more solver "
"iteration is needed to resolve them.");
}
else if (retcode == EPKG_CANCEL) {
g_message ("%s: pkg_jobs_apply cancelled", context);
return true;
}
else if (retcode != EPKG_OK) {
// libpkg doesn't yet return sensible error codes from pkg_jobs_apply
g_warning ("%s: pkg_jobs_apply failed", context);
return false;
}
} while (retcode != EPKG_OK);
return true;
}
iterator begin() {
void *pkgIter = nullptr;
pkg *newPkg = nullptr, *oldPkg = nullptr;
int type;
if (pkg_jobs_iter(jobsHandle, &pkgIter, &newPkg, &oldPkg, &type)) {
// TODO: I find it stupid that an iterator stores so much information
iterator ret;
ret.jobsHandle = jobsHandle;
ret.pkgIter = pkgIter;
ret.oldPkg = oldPkg;
ret.newPkg = newPkg;
ret.type = type;
return ret;
}
else return end();
}
iterator end() { return iterator(); }
~Jobs() {
pkg_jobs_free(jobsHandle);
}
private:
const char* context;
pkg_jobs* jobsHandle;
pkg_flags jobsFlags;
int jobsCount;
};
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