xbps/lib/repository_findpkg.c
Juan RP ec7cdde1e0 Misc cleanups and performance improvements.
- There's no need to check rval for prop_dictionary_get_*, we are sure the
  objects are there at prop_dictionary_set_* time.
- Avoid two chdir(2) calls per INSTALL/REMOVE run.
- Avoid using access(2) to check for existence of INSTALL/REMOVE scripts,
  just try to run the executable directly and check for ENOENT.
2010-11-06 06:44:00 +01:00

504 lines
12 KiB
C

/*-
* Copyright (c) 2009-2010 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 <xbps_api.h>
/**
* @file lib/repository_findpkg.c
* @brief Repository transaction handling routines
* @defgroup repo_pkgs Repository transaction handling functions
*
* The following image shows off the full transaction dictionary returned
* by xbps_repository_get_transaction_dict().
*
* @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 prop_dictionary_t trans_dict;
static bool trans_dict_initialized;
static int
create_transaction_dictionary(void)
{
prop_array_t unsorted, missing;
int rv = 0;
if (trans_dict_initialized)
return 0;
trans_dict = prop_dictionary_create();
if (trans_dict == NULL)
return ENOMEM;
missing = prop_array_create();
if (missing == NULL) {
rv = ENOMEM;
goto fail;
}
unsorted = prop_array_create();
if (unsorted == NULL) {
rv = ENOMEM;
goto fail2;
}
if (!xbps_add_obj_to_dict(trans_dict, missing, "missing_deps")) {
rv = EINVAL;
goto fail3;
}
if (!xbps_add_obj_to_dict(trans_dict, unsorted, "unsorted_deps")) {
rv = EINVAL;
goto fail3;
}
trans_dict_initialized = true;
return rv;
fail3:
prop_object_release(unsorted);
fail2:
prop_object_release(missing);
fail:
prop_object_release(trans_dict);
return rv;
}
static int
compute_transaction_sizes(void)
{
prop_object_iterator_t iter;
prop_object_t obj;
uint64_t tsize = 0, dlsize = 0, instsize = 0;
int rv = 0;
const char *tract;
iter = xbps_get_array_iter_from_dict(trans_dict, "packages");
if (iter == NULL)
return -1;
while ((obj = prop_object_iterator_next(iter)) != NULL) {
prop_dictionary_get_cstring_nocopy(obj, "trans-action", &tract);
/*
* Skip pkgs that need to be configured.
*/
if (strcmp(tract, "configure") == 0)
continue;
prop_dictionary_get_uint64(obj, "filename-size", &tsize);
dlsize += tsize;
tsize = 0;
prop_dictionary_get_uint64(obj, "installed_size", &tsize);
instsize += tsize;
tsize = 0;
}
/*
* Add object in transaction dictionary with total installed
* size that it will take.
*/
if (!prop_dictionary_set_uint64(trans_dict,
"total-installed-size", instsize)) {
rv = -1;
goto out;
}
/*
* Add object in transaction dictionary with total download
* size that needs to be sucked in.
*/
if (!prop_dictionary_set_uint64(trans_dict,
"total-download-size", dlsize)) {
rv = -1;
goto out;
}
out:
prop_object_iterator_release(iter);
return rv;
}
static int
set_pkg_state(prop_dictionary_t pkgd, const char *pkgname)
{
pkg_state_t state = 0;
int rv = 0;
rv = xbps_set_pkg_state_dictionary(pkgd, XBPS_PKG_STATE_NOT_INSTALLED);
if (rv != 0)
return rv;
/*
* Overwrite package state in dictionary if it was unpacked
* previously.
*/
rv = xbps_get_pkg_state_installed(pkgname, &state);
if (rv == 0) {
if ((rv = xbps_set_pkg_state_dictionary(pkgd, state)) != 0)
return rv;
} else if (rv == ENOENT)
rv = 0;
return rv;
}
prop_dictionary_t
xbps_repository_get_transaction_dict(void)
{
int rv = 0;
if (trans_dict_initialized == false) {
errno = ENOENT;
return NULL;
}
/*
* Sort package list if necessary.
*/
if ((rv = xbps_sort_pkg_deps(trans_dict)) != 0) {
/*
* If there are missing deps (errno==ENOENT)
* return the dictionary, the client should always
* check if that's the case.
*/
if (errno == ENOENT)
return trans_dict;
errno = rv;
return NULL;
}
/*
* Add total transaction installed/download sizes
* to the transaction dictionary.
*/
if (compute_transaction_sizes() != 0)
return NULL;
return trans_dict;
}
int
xbps_repository_update_allpkgs(void)
{
prop_dictionary_t dict;
prop_object_t obj;
prop_object_iterator_t iter;
const char *pkgname;
int rv = 0;
bool newpkg_found = false;
/*
* Prepare dictionary with all registered packages.
*/
dict = xbps_regpkgs_dictionary_init();
if (dict == NULL)
return ENOENT;
if ((rv = xbps_repository_pool_init()) != 0)
goto out;
iter = xbps_get_array_iter_from_dict(dict, "packages");
if (iter == NULL) {
rv = EINVAL;
goto out;
}
/*
* Find out if there is a newer version for all currently
* installed packages.
*/
while ((obj = prop_object_iterator_next(iter)) != NULL) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
rv = xbps_repository_update_pkg(pkgname, obj);
if (rv == ENOENT)
continue;
else if (rv == EEXIST) {
rv = 0;
continue;
} else if (rv != 0)
break;
newpkg_found = true;
}
prop_object_iterator_release(iter);
if (rv != ENOENT && !newpkg_found)
rv = ENOPKG;
out:
xbps_repository_pool_release();
xbps_regpkgs_dictionary_release();
return rv;
}
int
xbps_repository_update_pkg(const char *pkgname, prop_dictionary_t instpkg)
{
prop_dictionary_t pkgrd = NULL;
prop_array_t unsorted;
struct repository_pool *rpool;
const char *repover, *instver;
int flags = xbps_get_flags(), rv = 0;
bool newpkg_found = false;
assert(pkgname != NULL);
assert(instpkg != NULL);
/*
* Prepare repository pool queue.
*/
if ((rv = xbps_repository_pool_init()) != 0)
return rv;
SIMPLEQ_FOREACH(rpool, &rp_queue, rp_entries) {
/*
* Get the package dictionary from current repository.
* If it's not there, pass to the next repository.
*/
pkgrd = xbps_find_pkg_in_dict_by_name(rpool->rp_repod,
"packages", pkgname);
if (pkgrd == NULL) {
if (errno && errno != ENOENT) {
rv = errno;
goto out;
}
if (flags & XBPS_FLAG_VERBOSE)
printf("Package '%s' not found in repository "
"'%s'.\n", pkgname, rpool->rp_uri);
} else if (pkgrd != NULL) {
/*
* Check if version in repository is greater than
* the version currently installed.
*/
prop_dictionary_get_cstring_nocopy(instpkg,
"version", &instver);
prop_dictionary_get_cstring_nocopy(pkgrd,
"version", &repover);
if (xbps_cmpver(repover, instver) > 0) {
if (flags & XBPS_FLAG_VERBOSE) {
printf("Found '%s-%s' in repository "
"'%s'.\n", pkgname, repover,
rpool->rp_uri);
}
newpkg_found = true;
break;
}
if (flags & XBPS_FLAG_VERBOSE)
printf("Skipping '%s-%s' from repository "
"'%s'.\n", pkgname, repover, rpool->rp_uri);
continue;
}
}
if (!newpkg_found) {
rv = EEXIST;
goto out;
}
if (pkgrd == NULL) {
rv = ENOENT;
goto out;
}
/*
* Create the transaction dictionary.
*/
if ((rv = create_transaction_dictionary()) != 0)
goto out;
/*
* Set repository in pkg dictionary.
*/
if (!prop_dictionary_set_cstring(pkgrd, "repository", rpool->rp_uri)) {
rv = errno;
goto out;
}
/*
* Construct the dependency chain for this package.
*/
if ((rv = xbps_repository_find_pkg_deps(trans_dict, pkgrd)) != 0)
goto out;
/*
* Add required package dictionary into the packages
* dictionary.
*/
unsorted = prop_dictionary_get(trans_dict, "unsorted_deps");
if (unsorted == NULL) {
rv = EINVAL;
goto out;
}
/*
* Always set "not-installed" package state. Will be overwritten
* to its correct state later.
*/
if ((rv = set_pkg_state(pkgrd, pkgname)) != 0)
goto out;
if (!prop_dictionary_set_cstring_nocopy(pkgrd,
"trans-action", "update")) {
rv = errno;
goto out;
}
if (!prop_array_add(unsorted, pkgrd))
rv = errno;
out:
xbps_repository_pool_release();
return rv;
}
int
xbps_repository_install_pkg(const char *pkg, bool bypattern)
{
prop_dictionary_t origin_pkgrd = NULL, pkgrd = NULL;
prop_array_t unsorted;
struct repository_pool *rpool;
const char *pkgname, *pkgver;
int flags = xbps_get_flags(), rv = 0;
assert(pkg != NULL);
if ((rv = xbps_repository_pool_init()) != 0)
return rv;
SIMPLEQ_FOREACH(rpool, &rp_queue, rp_entries) {
/*
* Get the package dictionary from current repository.
* If it's not there, pass to the next repository.
*/
if (bypattern)
pkgrd = xbps_find_pkg_in_dict_by_pattern(
rpool->rp_repod, "packages", pkg);
else
pkgrd = xbps_find_pkg_in_dict_by_name(
rpool->rp_repod, "packages", pkg);
if (pkgrd == NULL) {
if (errno && errno != ENOENT) {
rv = errno;
goto out;
}
} else if (pkgrd != NULL) {
if (flags & XBPS_FLAG_VERBOSE) {
prop_dictionary_get_cstring_nocopy(pkgrd,
"pkgver", &pkgver);
printf("Found package '%s' (%s).\n",
pkgver, rpool->rp_uri);
}
break;
}
}
if (pkgrd == NULL) {
rv = EAGAIN;
goto out;
}
/*
* Create the transaction dictionary.
*/
if ((rv = create_transaction_dictionary()) != 0)
goto out;
/*
* Check that this pkg hasn't been added previously into
* the transaction.
*/
if (bypattern) {
if (xbps_find_pkg_in_dict_by_pattern(trans_dict,
"unsorted_deps", pkg))
goto out;
} else {
if (xbps_find_pkg_in_dict_by_name(trans_dict,
"unsorted_deps", pkg))
goto out;
}
/*
* Set repository in pkg dictionary.
*/
if (!prop_dictionary_set_cstring(pkgrd, "repository", rpool->rp_uri)) {
rv = errno;
goto out;
}
origin_pkgrd = prop_dictionary_copy(pkgrd);
prop_dictionary_get_cstring_nocopy(pkgrd, "pkgname", &pkgname);
/*
* Prepare required package dependencies.
*/
if ((rv = xbps_repository_find_pkg_deps(trans_dict, pkgrd)) != 0)
goto out;
if (flags & XBPS_FLAG_VERBOSE)
printf("\n");
/*
* Add required package dictionary into the unsorted deps dictionary,
* set package state as not yet installed.
*/
unsorted = prop_dictionary_get(trans_dict, "unsorted_deps");
if (unsorted == NULL) {
rv = EINVAL;
goto out;
}
if ((rv = set_pkg_state(origin_pkgrd, pkgname)) != 0)
goto out;
if (!prop_dictionary_set_cstring_nocopy(origin_pkgrd,
"trans-action", "install")) {
rv = errno;
goto out;
}
if (!prop_array_add(unsorted, origin_pkgrd))
rv = errno;
out:
if (origin_pkgrd)
prop_object_release(origin_pkgrd);
xbps_repository_pool_release();
return rv;
}