63c1883201
These are the core interfaces in the new API: rpool - Interface to interact with the repository pool. rindex - Interface to interact with repository indexes. pkgdb - Interface to interact with local packages. transaction - Interface to interact with a transaction. This also brings new repository index format, making the index file per architecture and being incompatible with previous versions. The transaction frequency flush option has been removed, and due to the nature of package states it was causing more harm than good. More changes coming soon, but the API shall remain stable from now on.
348 lines
10 KiB
C
348 lines
10 KiB
C
/*-
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* Copyright (c) 2009-2012 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 <ctype.h>
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#include <assert.h>
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#include <unistd.h>
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#include <limits.h>
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#include "xbps_api_impl.h"
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/**
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* @file lib/transaction_commit.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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check_binpkgs_hash(struct xbps_handle *xhp, prop_object_iterator_t iter)
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{
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prop_object_t obj;
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const char *pkgver, *repoloc, *filen, *sha256, *trans;
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const char *pkgname, *version;
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char *binfile;
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int rv = 0;
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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prop_dictionary_get_cstring_nocopy(obj, "transaction", &trans);
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if ((strcmp(trans, "remove") == 0) ||
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(strcmp(trans, "configure") == 0))
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continue;
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prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
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prop_dictionary_get_cstring_nocopy(obj, "version", &version);
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prop_dictionary_get_cstring_nocopy(obj, "repository", &repoloc);
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prop_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
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prop_dictionary_get_cstring_nocopy(obj, "filename", &filen);
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prop_dictionary_get_cstring_nocopy(obj,
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"filename-sha256", &sha256);
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binfile = xbps_repository_pkg_path(xhp, obj);
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if (binfile == NULL) {
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rv = EINVAL;
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break;
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}
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xbps_set_cb_state(xhp, XBPS_STATE_VERIFY, 0, pkgver, filen,
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"Verifying `%s' package integrity...", filen, repoloc);
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rv = xbps_file_hash_check(binfile, sha256);
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if (rv != 0) {
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free(binfile);
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xbps_set_cb_state(xhp, XBPS_STATE_VERIFY_FAIL,
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rv, pkgname, version,
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"Failed to verify `%s' package integrity: %s",
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filen, strerror(rv));
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break;
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}
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free(binfile);
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}
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prop_object_iterator_reset(iter);
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return rv;
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}
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static int
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download_binpkgs(struct xbps_handle *xhp, prop_object_iterator_t iter)
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{
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prop_object_t obj;
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const char *pkgver, *repoloc, *filen, *trans;
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const char *pkgname, *version, *fetchstr;
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char *binfile;
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int rv = 0;
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bool state_dload = false;
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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prop_dictionary_get_cstring_nocopy(obj, "transaction", &trans);
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if ((strcmp(trans, "remove") == 0) ||
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(strcmp(trans, "configure") == 0))
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continue;
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prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
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prop_dictionary_get_cstring_nocopy(obj, "version", &version);
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prop_dictionary_get_cstring_nocopy(obj, "repository", &repoloc);
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prop_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
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prop_dictionary_get_cstring_nocopy(obj, "filename", &filen);
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binfile = xbps_repository_pkg_path(xhp, obj);
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if (binfile == NULL) {
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rv = EINVAL;
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break;
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}
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/*
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* If downloaded package is in cachedir continue.
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*/
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if (access(binfile, R_OK) == 0) {
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free(binfile);
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continue;
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}
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/*
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* Create cachedir.
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*/
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if (access(xhp->cachedir, R_OK|X_OK|W_OK) == -1) {
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if (xbps_mkpath(xhp->cachedir, 0755) == -1) {
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xbps_set_cb_state(xhp, XBPS_STATE_DOWNLOAD_FAIL,
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errno, pkgname, version,
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"%s: [trans] cannot create cachedir `%s':"
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"%s", pkgver, xhp->cachedir,
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strerror(errno));
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free(binfile);
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rv = errno;
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break;
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}
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}
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if (state_dload == false) {
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xbps_set_cb_state(xhp, XBPS_STATE_TRANS_DOWNLOAD,
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0, NULL, NULL, NULL);
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state_dload = true;
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}
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xbps_set_cb_state(xhp, XBPS_STATE_DOWNLOAD,
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0, pkgname, version,
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"Downloading binary package `%s' (from `%s')...",
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filen, repoloc);
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/*
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* Fetch binary package.
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*/
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if (chdir(xhp->cachedir) == -1) {
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xbps_set_cb_state(xhp, XBPS_STATE_DOWNLOAD_FAIL,
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errno, pkgname, version,
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"%s: [trans] failed to change dir to cachedir"
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"`%s': %s", pkgver, xhp->cachedir,
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strerror(errno));
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rv = errno;
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free(binfile);
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break;
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}
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rv = xbps_fetch_file(xhp, binfile, NULL);
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if (rv == -1) {
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fetchstr = xbps_fetch_error_string();
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xbps_set_cb_state(xhp, XBPS_STATE_DOWNLOAD_FAIL,
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fetchLastErrCode != 0 ? fetchLastErrCode : errno,
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pkgname, version,
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"%s: [trans] failed to download binary package "
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"`%s' from `%s': %s", pkgver, filen, repoloc,
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fetchstr ? fetchstr : strerror(errno));
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free(binfile);
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break;
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}
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rv = 0;
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free(binfile);
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}
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prop_object_iterator_reset(iter);
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return rv;
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}
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int
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xbps_transaction_commit(struct xbps_handle *xhp)
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{
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prop_object_t obj;
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prop_object_iterator_t iter;
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const char *pkgname, *version, *pkgver, *tract;
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int rv = 0;
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bool update, install, sr;
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assert(prop_object_type(xhp->transd) == PROP_TYPE_DICTIONARY);
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update = install = false;
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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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/*
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* Download binary packages (if they come from a remote repository).
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*/
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if ((rv = download_binpkgs(xhp, iter)) != 0)
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goto out;
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/*
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* Check SHA256 hashes for binary packages in transaction.
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*/
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xbps_set_cb_state(xhp, XBPS_STATE_TRANS_VERIFY, 0, NULL, NULL, NULL);
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if ((rv = check_binpkgs_hash(xhp, iter)) != 0)
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goto out;
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/*
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* Install, update, configure or remove packages as specified
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* in the transaction dictionary.
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*/
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xbps_set_cb_state(xhp, XBPS_STATE_TRANS_RUN, 0, NULL, NULL, NULL);
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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update = false;
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prop_dictionary_get_cstring_nocopy(obj, "transaction", &tract);
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prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
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prop_dictionary_get_cstring_nocopy(obj, "version", &version);
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prop_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
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if (strcmp(tract, "remove") == 0) {
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update = false;
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sr = false;
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/*
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* Remove package.
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*/
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prop_dictionary_get_bool(obj, "remove-and-update",
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&update);
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prop_dictionary_get_bool(obj, "softreplace", &sr);
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rv = xbps_remove_pkg(xhp, pkgver, update, sr);
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if (rv != 0) {
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xbps_dbg_printf(xhp, "[trans] failed to "
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"remove %s-%s\n", pkgname, version);
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goto out;
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}
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} else if (strcmp(tract, "configure") == 0) {
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/*
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* Reconfigure pending package.
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*/
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rv = xbps_configure_pkg(xhp, pkgname, false, false, false);
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if (rv != 0)
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goto out;
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} else {
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/*
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* Install or update a package.
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*/
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if (strcmp(tract, "update") == 0)
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update = true;
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else
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install = true;
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if (update) {
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/*
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* Update a package: execute pre-remove
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* action if found before unpacking.
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*/
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xbps_set_cb_state(xhp, XBPS_STATE_UPDATE, 0,
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pkgname, version, NULL);
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rv = xbps_remove_pkg(xhp, pkgver, true, false);
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if (rv != 0) {
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xbps_set_cb_state(xhp,
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XBPS_STATE_UPDATE_FAIL,
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rv, pkgname, version,
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"%s: [trans] failed to update "
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"package to `%s': %s", pkgver,
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version, strerror(rv));
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goto out;
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}
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} else {
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/* Install a package */
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xbps_set_cb_state(xhp, XBPS_STATE_INSTALL,
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0, pkgname, version, NULL);
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}
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/*
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* Unpack binary package.
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*/
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if ((rv = xbps_unpack_binary_pkg(xhp, obj)) != 0)
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goto out;
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/*
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* Register package.
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*/
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if ((rv = xbps_register_pkg(xhp, obj, true)) != 0)
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goto out;
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}
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}
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prop_object_iterator_reset(iter);
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/* if there are no packages to install or update we are done */
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if (!update && !install)
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goto out;
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/*
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* Configure all unpacked packages.
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*/
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xbps_set_cb_state(xhp, XBPS_STATE_TRANS_CONFIGURE, 0, NULL, NULL, NULL);
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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prop_dictionary_get_cstring_nocopy(obj, "transaction", &tract);
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if ((strcmp(tract, "remove") == 0) ||
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(strcmp(tract, "configure") == 0))
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continue;
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prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
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prop_dictionary_get_cstring_nocopy(obj, "version", &version);
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update = false;
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if (strcmp(tract, "update") == 0)
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update = true;
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rv = xbps_configure_pkg(xhp, pkgname, false, update, true);
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if (rv != 0) {
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xbps_dbg_printf(xhp, "%s: configure failed for "
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"%s-%s: %s\n", pkgname, version, strerror(rv));
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goto out;
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}
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/*
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* Notify client callback when a package has been
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* installed or updated.
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*/
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if (update) {
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xbps_set_cb_state(xhp, XBPS_STATE_UPDATE_DONE, 0,
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pkgname, version, NULL);
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} else {
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xbps_set_cb_state(xhp, XBPS_STATE_INSTALL_DONE, 0,
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pkgname, version, NULL);
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}
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}
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out:
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prop_object_iterator_release(iter);
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return rv;
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}
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