d607655371
Close #46. See NEWS for more information.
361 lines
10 KiB
C
361 lines
10 KiB
C
/*-
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* Copyright (c) 2009-2015 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/statvfs.h>
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#include "xbps_api_impl.h"
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/**
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* @file lib/transaction_dictionary.c
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* @brief Transaction handling routines
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* @defgroup transaction Transaction handling functions
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*
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* The following image shows off the full transaction dictionary returned
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* by xbps_transaction_prepare().
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*
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* @image html images/xbps_transaction_dictionary.png
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*
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* Legend:
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* - <b>Salmon bg box</b>: The transaction dictionary.
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* - <b>White bg box</b>: mandatory objects.
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* - <b>Grey bg box</b>: optional objects.
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* - <b>Green bg box</b>: possible value set in the object, only one of them
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* will be set.
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*
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* Text inside of white boxes are the key associated with the object, its
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* data type is specified on its edge, i.e string, array, integer, dictionary.
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*/
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static int
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compute_transaction_stats(struct xbps_handle *xhp)
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{
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xbps_dictionary_t pkg_metad;
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xbps_object_iterator_t iter;
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xbps_object_t obj;
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struct statvfs svfs;
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uint64_t rootdir_free_size, tsize, dlsize, instsize, rmsize;
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uint32_t inst_pkgcnt, up_pkgcnt, cf_pkgcnt, rm_pkgcnt, dl_pkgcnt;
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const char *tract, *pkgver, *repo;
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inst_pkgcnt = up_pkgcnt = cf_pkgcnt = rm_pkgcnt = dl_pkgcnt = 0;
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rootdir_free_size = tsize = dlsize = instsize = rmsize = 0;
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iter = xbps_array_iter_from_dict(xhp->transd, "packages");
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if (iter == NULL)
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return EINVAL;
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while ((obj = xbps_object_iterator_next(iter)) != NULL) {
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bool preserve = false;
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/*
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* Count number of pkgs to be removed, configured,
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* installed and updated.
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*/
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xbps_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
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xbps_dictionary_get_cstring_nocopy(obj, "transaction", &tract);
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xbps_dictionary_get_cstring_nocopy(obj, "repository", &repo);
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xbps_dictionary_get_bool(obj, "preserve", &preserve);
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if (strcmp(tract, "configure") == 0) {
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cf_pkgcnt++;
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continue;
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} else if (strcmp(tract, "install") == 0) {
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inst_pkgcnt++;
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} else if (strcmp(tract, "update") == 0) {
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up_pkgcnt++;
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} else if (strcmp(tract, "remove") == 0) {
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rm_pkgcnt++;
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}
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tsize = 0;
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if ((strcmp(tract, "install") == 0) ||
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(strcmp(tract, "update") == 0)) {
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xbps_dictionary_get_uint64(obj,
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"installed_size", &tsize);
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instsize += tsize;
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if (xbps_repository_is_remote(repo) &&
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!xbps_binpkg_exists(xhp, obj)) {
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xbps_dictionary_get_uint64(obj,
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"filename-size", &tsize);
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/* signature file: 512 bytes */
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tsize += 512;
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dlsize += tsize;
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instsize += tsize;
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dl_pkgcnt++;
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xbps_dictionary_set_bool(obj, "download", true);
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}
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}
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/*
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* If removing or updating a package, get installed_size
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* from pkg's metadata dictionary.
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*/
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if ((strcmp(tract, "remove") == 0) ||
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((strcmp(tract, "update") == 0) && !preserve)) {
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char *pkgname;
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pkgname = xbps_pkg_name(pkgver);
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assert(pkgname);
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pkg_metad = xbps_pkgdb_get_pkg(xhp, pkgname);
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free(pkgname);
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if (pkg_metad == NULL)
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continue;
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xbps_dictionary_get_uint64(pkg_metad,
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"installed_size", &tsize);
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rmsize += tsize;
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}
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}
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xbps_object_iterator_release(iter);
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if (instsize > rmsize) {
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instsize -= rmsize;
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rmsize = 0;
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} else if (rmsize > instsize) {
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rmsize -= instsize;
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instsize = 0;
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} else {
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instsize = rmsize = 0;
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}
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if (!xbps_dictionary_set_uint32(xhp->transd,
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"total-install-pkgs", inst_pkgcnt))
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return EINVAL;
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if (!xbps_dictionary_set_uint32(xhp->transd,
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"total-update-pkgs", up_pkgcnt))
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return EINVAL;
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if (!xbps_dictionary_set_uint32(xhp->transd,
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"total-configure-pkgs", cf_pkgcnt))
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return EINVAL;
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if (!xbps_dictionary_set_uint32(xhp->transd,
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"total-remove-pkgs", rm_pkgcnt))
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return EINVAL;
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if (!xbps_dictionary_set_uint32(xhp->transd,
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"total-download-pkgs", dl_pkgcnt))
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return EINVAL;
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if (!xbps_dictionary_set_uint64(xhp->transd,
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"total-installed-size", instsize))
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return EINVAL;
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if (!xbps_dictionary_set_uint64(xhp->transd,
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"total-download-size", dlsize))
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return EINVAL;
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if (!xbps_dictionary_set_uint64(xhp->transd,
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"total-removed-size", rmsize))
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return EINVAL;
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/* Get free space from target rootdir: return ENOSPC if there's not enough space */
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if (statvfs(xhp->rootdir, &svfs) == -1) {
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xbps_dbg_printf(xhp, "%s: statvfs failed: %s\n", __func__, strerror(errno));
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return 0;
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}
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/* compute free space on disk */
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rootdir_free_size = svfs.f_bfree * svfs.f_bsize;
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if (!xbps_dictionary_set_uint64(xhp->transd,
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"disk-free-size", rootdir_free_size))
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return EINVAL;
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if (instsize > rootdir_free_size)
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return ENOSPC;
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return 0;
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}
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int HIDDEN
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xbps_transaction_init(struct xbps_handle *xhp)
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{
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xbps_array_t array;
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if (xhp->transd != NULL)
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return 0;
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if ((xhp->transd = xbps_dictionary_create()) == NULL)
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return ENOMEM;
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if ((array = xbps_array_create()) == NULL) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return ENOMEM;
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}
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if (!xbps_dictionary_set(xhp->transd, "packages", array)) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return EINVAL;
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}
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xbps_object_release(array);
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if ((array = xbps_array_create()) == NULL) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return ENOMEM;
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}
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if (!xbps_dictionary_set(xhp->transd, "missing_deps", array)) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return EINVAL;
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}
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xbps_object_release(array);
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if ((array = xbps_array_create()) == NULL) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return ENOMEM;
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}
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if (!xbps_dictionary_set(xhp->transd, "missing_shlibs", array)) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return EINVAL;
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}
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xbps_object_release(array);
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if ((array = xbps_array_create()) == NULL) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return ENOMEM;
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}
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if (!xbps_dictionary_set(xhp->transd, "conflicts", array)) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return EINVAL;
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}
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xbps_object_release(array);
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return 0;
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}
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int
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xbps_transaction_prepare(struct xbps_handle *xhp)
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{
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xbps_array_t array, pkgs, edges;
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unsigned int i, cnt;
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int rv = 0;
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if (xhp->transd == NULL)
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return ENXIO;
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/*
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* Collect dependencies for pkgs in transaction.
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*/
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if ((edges = xbps_array_create()) == NULL)
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return ENOMEM;
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/*
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* The edges are also appended after its dependencies have been
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* collected; the edges at the original array are removed later.
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*/
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pkgs = xbps_dictionary_get(xhp->transd, "packages");
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assert(xbps_object_type(pkgs) == XBPS_TYPE_ARRAY);
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cnt = xbps_array_count(pkgs);
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for (i = 0; i < cnt; i++) {
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xbps_dictionary_t pkgd;
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xbps_string_t str;
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const char *tract = NULL;
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pkgd = xbps_array_get(pkgs, i);
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str = xbps_dictionary_get(pkgd, "pkgver");
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xbps_dictionary_get_cstring_nocopy(pkgd, "transaction", &tract);
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if ((strcmp(tract, "remove") == 0) || strcmp(tract, "hold") == 0)
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continue;
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assert(xbps_object_type(str) == XBPS_TYPE_STRING);
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if (!xbps_array_add(edges, str))
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return ENOMEM;
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if ((rv = xbps_repository_find_deps(xhp, pkgs, pkgd)) != 0)
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return rv;
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if (!xbps_array_add(pkgs, pkgd))
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return ENOMEM;
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}
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/* ... remove dup edges at head */
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for (i = 0; i < xbps_array_count(edges); i++) {
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const char *pkgver;
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xbps_array_get_cstring_nocopy(edges, i, &pkgver);
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xbps_remove_pkg_from_array_by_pkgver(pkgs, pkgver);
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}
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xbps_object_release(edges);
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/*
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* If there are missing deps or revdeps bail out.
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*/
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xbps_transaction_revdeps(xhp, pkgs);
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array = xbps_dictionary_get(xhp->transd, "missing_deps");
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if (xbps_array_count(array)) {
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if (xhp->flags & XBPS_FLAG_FORCE_REMOVE_REVDEPS) {
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xbps_dbg_printf(xhp, "[trans] continuing with broken reverse dependencies!");
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} else {
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return ENODEV;
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}
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}
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for (i = 0; i < xbps_array_count(pkgs); i++)
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xbps_pkg_find_conflicts(xhp, pkgs, xbps_array_get(pkgs, i));
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/*
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* If there are package conflicts bail out.
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*/
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array = xbps_dictionary_get(xhp->transd, "conflicts");
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if (xbps_array_count(array))
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return EAGAIN;
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/*
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* Check for unresolved shared libraries.
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*/
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if (xbps_transaction_shlibs(xhp, pkgs,
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xbps_dictionary_get(xhp->transd, "missing_shlibs"))) {
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if (xhp->flags & XBPS_FLAG_FORCE_REMOVE_REVDEPS) {
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xbps_dbg_printf(xhp, "[trans] continuing with unresolved shared libraries!");
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} else {
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return ENOEXEC;
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}
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}
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/*
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* Check for packages to be replaced.
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*/
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if ((rv = xbps_transaction_package_replace(xhp, pkgs)) != 0) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return rv;
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}
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/*
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* Add transaction stats for total download/installed size,
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* number of packages to be installed, updated, configured
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* and removed to the transaction dictionary.
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*/
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if ((rv = compute_transaction_stats(xhp)) != 0) {
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xbps_object_release(xhp->transd);
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xhp->transd = NULL;
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return rv;
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}
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/*
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* Remove now unneeded objects.
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*/
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xbps_dictionary_remove(xhp->transd, "missing_shlibs");
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xbps_dictionary_remove(xhp->transd, "missing_deps");
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xbps_dictionary_remove(xhp->transd, "conflicts");
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xbps_dictionary_make_immutable(xhp->transd);
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return 0;
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}
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