xbps/lib/transaction_ops.c
Duncan Overbruck de484e9369
lib: change xbps_dbg_printf to not require xbps_handle
This allows to simplify a lot of code by not having to pass around
the xbps handle everywhere just to print some debug information.
2022-12-24 14:29:23 +01:00

583 lines
15 KiB
C

/*-
* Copyright (c) 2009-2020 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 <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fnmatch.h>
#include "xbps_api_impl.h"
/**
* @file lib/transaction_ops.c
* @brief Transaction handling routines
* @defgroup transaction Transaction handling functions
*
* The following image shows off the full transaction dictionary returned
* by xbps_transaction_prepare().
*
* @image html images/xbps_transaction_dictionary.png
*
* Legend:
* - <b>Salmon bg box</b>: The transaction dictionary.
* - <b>White bg box</b>: mandatory objects.
* - <b>Grey bg box</b>: optional objects.
* - <b>Green bg box</b>: possible value set in the object, only one of them
* will be set.
*
* Text inside of white boxes are the key associated with the object, its
* data type is specified on its edge, i.e string, array, integer, dictionary.
*/
static int
trans_find_pkg(struct xbps_handle *xhp, const char *pkg, bool force)
{
xbps_dictionary_t pkg_pkgdb = NULL, pkg_repod = NULL;
xbps_object_t obj;
xbps_array_t pkgs;
pkg_state_t state = 0;
xbps_trans_type_t ttype;
const char *repoloc, *repopkgver, *instpkgver, *pkgname;
char buf[XBPS_NAME_SIZE] = {0};
int rv = 0;
assert(pkg != NULL);
/*
* Find out if pkg is installed first.
*/
if (xbps_pkg_name(buf, sizeof(buf), pkg)) {
pkg_pkgdb = xbps_pkgdb_get_pkg(xhp, buf);
} else {
pkg_pkgdb = xbps_pkgdb_get_pkg(xhp, pkg);
}
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
pkg_pkgdb = NULL;
ttype = XBPS_TRANS_DOWNLOAD;
}
/*
* Find out if the pkg has been found in repository pool.
*/
if (pkg_pkgdb == NULL) {
/* pkg not installed, perform installation */
ttype = XBPS_TRANS_INSTALL;
if (((pkg_repod = xbps_rpool_get_pkg(xhp, pkg)) == NULL) &&
((pkg_repod = xbps_rpool_get_virtualpkg(xhp, pkg)) == NULL)) {
/* not found */
return ENOENT;
}
} else {
if (force) {
ttype = XBPS_TRANS_REINSTALL;
} else {
ttype = XBPS_TRANS_UPDATE;
}
if (xbps_dictionary_get(pkg_pkgdb, "repolock")) {
struct xbps_repo *repo;
/* find update from repo */
xbps_dictionary_get_cstring_nocopy(pkg_pkgdb, "repository", &repoloc);
assert(repoloc);
if ((repo = xbps_regget_repo(xhp, repoloc)) == NULL) {
/* not found */
return ENOENT;
}
pkg_repod = xbps_repo_get_pkg(repo, pkg);
} else {
/* find update from rpool */
pkg_repod = xbps_rpool_get_pkg(xhp, pkg);
}
if (pkg_repod == NULL) {
/* not found */
return ENOENT;
}
}
xbps_dictionary_get_cstring_nocopy(pkg_repod, "pkgver", &repopkgver);
if (ttype == XBPS_TRANS_UPDATE) {
/*
* Compare installed version vs best pkg available in repos
* for pkg updates.
*/
xbps_dictionary_get_cstring_nocopy(pkg_pkgdb,
"pkgver", &instpkgver);
if (xbps_cmpver(repopkgver, instpkgver) <= 0 &&
!xbps_pkg_reverts(pkg_repod, instpkgver)) {
xbps_dictionary_get_cstring_nocopy(pkg_repod,
"repository", &repoloc);
xbps_dbg_printf("[rpool] Skipping `%s' "
"(installed: %s) from repository `%s'\n",
repopkgver, instpkgver, repoloc);
return EEXIST;
}
} else if (ttype == XBPS_TRANS_REINSTALL) {
/*
* For reinstallation check if installed version is less than
* or equal to the pkg in repos, if true, continue with reinstallation;
* otherwise perform an update.
*/
xbps_dictionary_get_cstring_nocopy(pkg_pkgdb, "pkgver", &instpkgver);
if (xbps_cmpver(repopkgver, instpkgver) == 1) {
ttype = XBPS_TRANS_UPDATE;
}
}
if (pkg_pkgdb) {
/*
* If pkg is already installed, respect some properties.
*/
if ((obj = xbps_dictionary_get(pkg_pkgdb, "automatic-install")))
xbps_dictionary_set(pkg_repod, "automatic-install", obj);
if ((obj = xbps_dictionary_get(pkg_pkgdb, "hold")))
xbps_dictionary_set(pkg_repod, "hold", obj);
if ((obj = xbps_dictionary_get(pkg_pkgdb, "repolock")))
xbps_dictionary_set(pkg_repod, "repolock", obj);
}
/*
* Prepare transaction dictionary.
*/
if ((rv = xbps_transaction_init(xhp)) != 0)
return rv;
pkgs = xbps_dictionary_get(xhp->transd, "packages");
/*
* Find out if package being updated matches the one already
* in transaction, in that case ignore it.
*/
if (ttype == XBPS_TRANS_UPDATE) {
if (xbps_find_pkg_in_array(pkgs, repopkgver, 0)) {
xbps_dbg_printf("[update] `%s' already queued in "
"transaction.\n", repopkgver);
return EEXIST;
}
}
if (!xbps_dictionary_get_cstring_nocopy(pkg_repod, "pkgname", &pkgname)) {
return EINVAL;
}
/*
* Set package state in dictionary with same state than the
* package currently uses, otherwise not-installed.
*/
if ((rv = xbps_pkg_state_installed(xhp, pkgname, &state)) != 0) {
if (rv != ENOENT) {
return rv;
}
/* Package not installed, don't error out */
state = XBPS_PKG_STATE_NOT_INSTALLED;
}
if ((rv = xbps_set_pkg_state_dictionary(pkg_repod, state)) != 0) {
return rv;
}
if (state == XBPS_PKG_STATE_NOT_INSTALLED)
ttype = XBPS_TRANS_INSTALL;
if (!force && xbps_dictionary_get(pkg_repod, "hold"))
ttype = XBPS_TRANS_HOLD;
/*
* Store pkgd from repo into the transaction.
*/
if (!xbps_transaction_pkg_type_set(pkg_repod, ttype)) {
return EINVAL;
}
if (!xbps_transaction_store(xhp, pkgs, pkg_repod, false)) {
return EINVAL;
}
return 0;
}
/*
* Returns 1 if there's an update, 0 if none or -1 on error.
*/
static int
xbps_autoupdate(struct xbps_handle *xhp)
{
xbps_array_t rdeps;
xbps_dictionary_t pkgd;
const char *pkgver = NULL, *pkgname = NULL;
int rv;
/*
* Check if there's a new update for XBPS before starting
* another transaction.
*/
if (((pkgd = xbps_pkgdb_get_pkg(xhp, "xbps")) == NULL) &&
((pkgd = xbps_pkgdb_get_virtualpkg(xhp, "xbps")) == NULL))
return 0;
if (!xbps_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver)) {
return EINVAL;
}
if (!xbps_dictionary_get_cstring_nocopy(pkgd, "pkgname", &pkgname)) {
return EINVAL;
}
rv = trans_find_pkg(xhp, pkgname, false);
xbps_dbg_printf("%s: trans_find_pkg xbps: %d\n", __func__, rv);
if (rv == 0) {
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
return 0;
}
/* a new xbps version is available, check its revdeps */
rdeps = xbps_pkgdb_get_pkg_revdeps(xhp, "xbps");
for (unsigned int i = 0; i < xbps_array_count(rdeps); i++) {
const char *curpkgver = NULL;
char curpkgn[XBPS_NAME_SIZE] = {0};
xbps_array_get_cstring_nocopy(rdeps, i, &curpkgver);
xbps_dbg_printf("%s: processing revdep %s\n", __func__, curpkgver);
if (!xbps_pkg_name(curpkgn, sizeof(curpkgn), curpkgver)) {
abort();
}
rv = trans_find_pkg(xhp, curpkgn, false);
xbps_dbg_printf("%s: trans_find_pkg revdep %s: %d\n", __func__, curpkgver, rv);
if (rv && rv != ENOENT && rv != EEXIST && rv != ENODEV)
return -1;
}
/*
* Set XBPS_FLAG_FORCE_REMOVE_REVDEPS to ignore broken
* reverse dependencies in xbps_transaction_prepare().
*
* This won't skip revdeps of the xbps pkg, rather other
* packages in rootdir that could be broken indirectly.
*
* A sysup transaction after updating xbps should fix them
* again.
*/
xhp->flags |= XBPS_FLAG_FORCE_REMOVE_REVDEPS;
return 1;
} else if (rv == ENOENT || rv == EEXIST || rv == ENODEV) {
/* no update */
return 0;
} else {
/* error */
return -1;
}
return 0;
}
int
xbps_transaction_update_packages(struct xbps_handle *xhp)
{
xbps_object_t obj;
xbps_object_iterator_t iter;
xbps_dictionary_t pkgd;
bool newpkg_found = false;
int rv = 0;
rv = xbps_autoupdate(xhp);
switch (rv) {
case 1:
/* xbps needs to be updated, don't allow any other update */
return EBUSY;
case -1:
/* error */
return EINVAL;
default:
break;
}
iter = xbps_dictionary_iterator(xhp->pkgdb);
assert(iter);
while ((obj = xbps_object_iterator_next(iter))) {
const char *pkgver = NULL;
char pkgname[XBPS_NAME_SIZE] = {0};
pkgd = xbps_dictionary_get_keysym(xhp->pkgdb, obj);
if (!xbps_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver)) {
continue;
}
if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
rv = EINVAL;
break;
}
rv = trans_find_pkg(xhp, pkgname, false);
xbps_dbg_printf("%s: trans_find_pkg %s: %d\n", __func__, pkgver, rv);
if (rv == 0) {
newpkg_found = true;
} else if (rv == ENOENT || rv == EEXIST || rv == ENODEV) {
/*
* missing pkg or installed version is greater than or
* equal than pkg in repositories.
*/
rv = 0;
}
}
xbps_object_iterator_release(iter);
return newpkg_found ? rv : EEXIST;
}
int
xbps_transaction_update_pkg(struct xbps_handle *xhp, const char *pkg, bool force)
{
xbps_array_t rdeps;
int rv;
rv = xbps_autoupdate(xhp);
xbps_dbg_printf("%s: xbps_autoupdate %d\n", __func__, rv);
switch (rv) {
case 1:
/* xbps needs to be updated, only allow xbps to be updated */
if (strcmp(pkg, "xbps"))
return EBUSY;
return 0;
case -1:
/* error */
return EINVAL;
default:
/* no update */
break;
}
/* update its reverse dependencies */
rdeps = xbps_pkgdb_get_pkg_revdeps(xhp, pkg);
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
rdeps = NULL;
}
for (unsigned int i = 0; i < xbps_array_count(rdeps); i++) {
const char *pkgver = NULL;
char pkgname[XBPS_NAME_SIZE] = {0};
if (!xbps_array_get_cstring_nocopy(rdeps, i, &pkgver)) {
rv = EINVAL;
break;
}
if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
rv = EINVAL;
break;
}
rv = trans_find_pkg(xhp, pkgname, false);
xbps_dbg_printf("%s: trans_find_pkg %s: %d\n", __func__, pkgver, rv);
if (rv && rv != ENOENT && rv != EEXIST && rv != ENODEV) {
return rv;
}
}
/* add pkg repod */
rv = trans_find_pkg(xhp, pkg, force);
xbps_dbg_printf("%s: trans_find_pkg %s: %d\n", __func__, pkg, rv);
return rv;
}
int
xbps_transaction_install_pkg(struct xbps_handle *xhp, const char *pkg, bool force)
{
xbps_array_t rdeps;
int rv;
rv = xbps_autoupdate(xhp);
switch (rv) {
case 1:
/* xbps needs to be updated, only allow xbps to be updated */
if (strcmp(pkg, "xbps"))
return EBUSY;
return 0;
case -1:
/* error */
return EINVAL;
default:
/* no update */
break;
}
/* update its reverse dependencies */
rdeps = xbps_pkgdb_get_pkg_revdeps(xhp, pkg);
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
rdeps = NULL;
}
for (unsigned int i = 0; i < xbps_array_count(rdeps); i++) {
const char *pkgver = NULL;
char pkgname[XBPS_NAME_SIZE] = {0};
if (!xbps_array_get_cstring_nocopy(rdeps, i, &pkgver)) {
rv = EINVAL;
break;
}
if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
rv = EINVAL;
break;
}
rv = trans_find_pkg(xhp, pkgname, false);
xbps_dbg_printf("%s: trans_find_pkg %s: %d\n", __func__, pkgver, rv);
if (rv && rv != ENOENT && rv != EEXIST && rv != ENODEV) {
return rv;
}
}
rv = trans_find_pkg(xhp, pkg, force);
xbps_dbg_printf("%s: trans_find_pkg %s: %d\n", __func__, pkg, rv);
return rv;
}
int
xbps_transaction_remove_pkg(struct xbps_handle *xhp,
const char *pkgname,
bool recursive)
{
xbps_dictionary_t pkgd;
xbps_array_t pkgs, orphans, orphans_pkg;
xbps_object_t obj;
int rv = 0;
assert(xhp);
assert(pkgname);
if ((pkgd = xbps_pkgdb_get_pkg(xhp, pkgname)) == NULL) {
/* pkg not installed */
return ENOENT;
}
/*
* Prepare transaction dictionary and missing deps array.
*/
if ((rv = xbps_transaction_init(xhp)) != 0)
return rv;
pkgs = xbps_dictionary_get(xhp->transd, "packages");
if (!recursive)
goto rmpkg;
/*
* If recursive is set, find out which packages would be orphans
* if the supplied package were already removed.
*/
if ((orphans_pkg = xbps_array_create()) == NULL)
return ENOMEM;
xbps_array_set_cstring_nocopy(orphans_pkg, 0, pkgname);
orphans = xbps_find_pkg_orphans(xhp, orphans_pkg);
xbps_object_release(orphans_pkg);
if (xbps_object_type(orphans) != XBPS_TYPE_ARRAY)
return EINVAL;
for (unsigned int i = 0; i < xbps_array_count(orphans); i++) {
obj = xbps_array_get(orphans, i);
xbps_transaction_pkg_type_set(obj, XBPS_TRANS_REMOVE);
if (!xbps_transaction_store(xhp, pkgs, obj, false)) {
return EINVAL;
}
}
xbps_object_release(orphans);
return rv;
rmpkg:
/*
* Add pkg dictionary into the transaction pkgs queue.
*/
xbps_transaction_pkg_type_set(pkgd, XBPS_TRANS_REMOVE);
if (!xbps_transaction_store(xhp, pkgs, pkgd, false)) {
return EINVAL;
}
return rv;
}
int
xbps_transaction_autoremove_pkgs(struct xbps_handle *xhp)
{
xbps_array_t orphans, pkgs;
xbps_object_t obj;
int rv = 0;
orphans = xbps_find_pkg_orphans(xhp, NULL);
if (xbps_array_count(orphans) == 0) {
/* no orphans? we are done */
goto out;
}
/*
* Prepare transaction dictionary and missing deps array.
*/
if ((rv = xbps_transaction_init(xhp)) != 0)
goto out;
pkgs = xbps_dictionary_get(xhp->transd, "packages");
/*
* Add pkg orphan dictionary into the transaction pkgs queue.
*/
for (unsigned int i = 0; i < xbps_array_count(orphans); i++) {
obj = xbps_array_get(orphans, i);
xbps_transaction_pkg_type_set(obj, XBPS_TRANS_REMOVE);
if (!xbps_transaction_store(xhp, pkgs, obj, false)) {
rv = EINVAL;
goto out;
}
}
out:
if (orphans)
xbps_object_release(orphans);
return rv;
}
xbps_trans_type_t
xbps_transaction_pkg_type(xbps_dictionary_t pkg_repod)
{
uint8_t r;
if (xbps_object_type(pkg_repod) != XBPS_TYPE_DICTIONARY)
return 0;
if (!xbps_dictionary_get_uint8(pkg_repod, "transaction", &r))
return 0;
return r;
}
bool
xbps_transaction_pkg_type_set(xbps_dictionary_t pkg_repod, xbps_trans_type_t ttype)
{
uint8_t r;
if (xbps_object_type(pkg_repod) != XBPS_TYPE_DICTIONARY)
return false;
switch (ttype) {
case XBPS_TRANS_INSTALL:
case XBPS_TRANS_UPDATE:
case XBPS_TRANS_CONFIGURE:
case XBPS_TRANS_REMOVE:
case XBPS_TRANS_REINSTALL:
case XBPS_TRANS_HOLD:
case XBPS_TRANS_DOWNLOAD:
break;
default:
return false;
}
r = ttype;
if (!xbps_dictionary_set_uint8(pkg_repod, "transaction", r))
return false;
return true;
}