transaction_store.c

/*-
 * Copyright (c) 2014-2020 Juan Romero Pardines.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
 
#include "xbps_api_impl.h"
 
bool HIDDEN
xbps_transaction_store(struct xbps_handle *xhp, xbps_array_t pkgs,
                xbps_dictionary_t pkgrd, bool autoinst)
{
        xbps_dictionary_t d, pkgd;
        xbps_array_t replaces;
        const char *pkgver, *pkgname, *curpkgver, *repo;
        char *self_replaced;
        int rv;
 
        assert(xhp);
        assert(pkgs);
        assert(pkgrd);
 
        if (!xbps_dictionary_get_cstring_nocopy(pkgrd, "pkgver", &pkgver)) {
                return false;
        }
        if (!xbps_dictionary_get_cstring_nocopy(pkgrd, "pkgname", &pkgname)) {
                return false;
        }
        d = xbps_find_pkg_in_array(pkgs, pkgname, 0);
        if (xbps_object_type(d) == XBPS_TYPE_DICTIONARY) {
                /* compare version stored in transaction vs current */
                if (!xbps_dictionary_get_cstring_nocopy(d, "pkgver", &curpkgver)) {
                        return false;
                }
                rv = xbps_cmpver(pkgver, curpkgver);
                if (rv == 0 || rv == -1) {
                        /* same version or stored version greater than current */
                        return true;
                } else {
                        /*
                         * Current version is greater than stored,
                         * replace stored with current.
                         */
                        if (!xbps_remove_pkg_from_array_by_pkgver(pkgs, curpkgver)) {
                                return false;
                        }
                        xbps_dbg_printf("[trans] replaced %s with %s\n", curpkgver, pkgver);
                }
        }
 
        if ((pkgd = xbps_dictionary_copy_mutable(pkgrd)) == NULL)
                return false;
 
        /*
         * Add required objects into package dep's dictionary.
         */
        if (autoinst && !xbps_dictionary_set_bool(pkgd, "automatic-install", true))
                goto err;
 
        /*
         * Set a replaces to itself, so that virtual packages are always replaced.
        */
        if ((replaces = xbps_dictionary_get(pkgd, "replaces")) == NULL)
                replaces = xbps_array_create();
 
        self_replaced = xbps_xasprintf("%s>=0", pkgname);
        xbps_array_add_cstring(replaces, self_replaced);
        free(self_replaced);
 
        if (!xbps_dictionary_set(pkgd, "replaces", replaces))
                goto err;
 
        /*
         * Add the dictionary into the unsorted queue.
         */
        if (!xbps_array_add(pkgs, pkgd))
                goto err;
 
        xbps_dictionary_get_cstring_nocopy(pkgd, "repository", &repo);
 
        xbps_set_cb_state(xhp, XBPS_STATE_TRANS_ADDPKG, 0, pkgver,
            "Found %s in repository %s", pkgver, repo);
 
        xbps_dbg_printf("[trans] `%s' stored%s (%s)\n", pkgver,
            autoinst ? " as automatic install" : "", repo);
        xbps_object_release(pkgd);
 
        return true;
err:
        xbps_object_release(pkgd);
        return false;
}