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Use sync.c for upgrade transaction prepare and commit

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This patch utilizes the power of sync.c to fix FS#3492 and FS#5798.
Now an upgrade transaction is just a sync transaction internally (in alpm),
so all sync features are available with -U as well:
* conflict resolving
* sync dependencies from sync repos
* remove unresolvable targets

See http://www.archlinux.org/pipermail/pacman-dev/2009-June/008725.html
for the concept.

We use "mixed" target list, where PKG_FROM_FILE origin indicates local
package file, PKG_FROM_CACHE indicates sync package. The front-end can add
only one type of packages (depending on transaction type) atm, but if alpm
resolves dependencies for -U, we may get a real mixed trans->packages list.

_alpm_pkg_free_trans() was modified so that it can handle both target types
_alpm_add_prepare() was removed, we use _alpm_sync_prepare() instead
_alpm_add_commit() was renamed to _alpm_upgrade_targets()

sync.c (and deps.c) was modified slightly to handle mixed target lists,
the modifications are straightforward. There is one notable change here: We
don't create new upgrade trans in sync.c, we replace the pkgcache entries
with the loaded package files in the target list (this is a bit hackish) and
call _alpm_upgrade_targets(). This implies a TODO (pkg->origin_data.db is
not accessible anymore), but it doesn't hurt anything with pacman front-end,
so it will be fixed later (otherwise this patch would be huge).

I updated the documentation of -U and I added a new pactest, upgrade090.py,
to test the syncdeps feature of -U.

Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Nagy Gabor 2009-06-09 17:23:46 +02:00 committed by Dan McGee
parent b7db46d610
commit 0da96abc90
11 changed files with 138 additions and 179 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/pacman.8.txt
View File

@ -82,7 +82,8 @@ to determine which packages need upgrading. This behavior operates as follows:
"bash>=3.2"`.
*-U, \--upgrade*::
Upgrade or add package(s) to the system. Either a URL or file path can be
Upgrade or add package(s) to the system and install the required
dependencies from sync repos. Either a URL or file path can be
specified. This is a ``remove-then-add'' process. See <<HCF,Handling Config
Files>> for an explanation on how pacman takes care of config files.

87
lib/libalpm/add.c
View File

@ -99,91 +99,6 @@ error:
return(-1);
}
int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
{
alpm_list_t *lp = NULL;
ALPM_LOG_FUNC;
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
/* Check dependencies
*/
if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) {
EVENT(trans, PM_TRANS_EVT_CHECKDEPS_START, NULL, NULL);
/* look for unsatisfied dependencies */
_alpm_log(PM_LOG_DEBUG, "looking for unsatisfied dependencies\n");
lp = alpm_checkdeps(_alpm_db_get_pkgcache(db), 1, NULL, trans->packages);
if(lp != NULL) {
if(data) {
*data = lp;
} else {
alpm_list_free_inner(lp, (alpm_list_fn_free)_alpm_depmiss_free);
alpm_list_free(lp);
}
RET_ERR(PM_ERR_UNSATISFIED_DEPS, -1);
}
/* no unsatisfied deps, so look for conflicts */
_alpm_log(PM_LOG_DEBUG, "looking for conflicts\n");
alpm_list_t *inner = _alpm_innerconflicts(trans->packages);
alpm_list_t *outer = _alpm_outerconflicts(db, trans->packages);
lp = alpm_list_join(inner, outer);
/* TODO : factorize the conflict resolving code from sync.c to use it here (FS#3492) */
if(lp != NULL) {
if(data) {
*data = lp;
} else {
alpm_list_free_inner(lp, (alpm_list_fn_free)_alpm_conflict_free);
alpm_list_free(lp);
}
if(inner) {
_alpm_log(PM_LOG_ERROR, _("conflicting packages were found in the target list\n"));
_alpm_log(PM_LOG_ERROR, _("you cannot install two conflicting packages at the same time\n"));
}
if(outer) {
_alpm_log(PM_LOG_ERROR, _("replacing packages with -U is not supported yet\n"));
_alpm_log(PM_LOG_ERROR, _("you can replace packages manually using -Rd and -U\n"));
}
RET_ERR(PM_ERR_CONFLICTING_DEPS, -1);
}
/* re-order w.r.t. dependencies */
_alpm_log(PM_LOG_DEBUG, "sorting by dependencies\n");
lp = _alpm_sortbydeps(trans->packages, 0);
/* free the old alltargs */
alpm_list_free(trans->packages);
trans->packages = lp;
EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);
}
/* Check for file conflicts */
if(!(trans->flags & PM_TRANS_FLAG_FORCE)) {
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, "looking for file conflicts\n");
lp = _alpm_db_find_fileconflicts(db, trans, trans->packages, NULL);
if(lp != NULL) {
if(data) {
*data = lp;
} else {
alpm_list_free_inner(lp, (alpm_list_fn_free)_alpm_fileconflict_free);
alpm_list_free(lp);
}
RET_ERR(PM_ERR_FILE_CONFLICTS, -1);
}
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_DONE, NULL, NULL);
}
return(0);
}
static int upgrade_remove(pmpkg_t *oldpkg, pmpkg_t *newpkg, pmtrans_t *trans, pmdb_t *db) {
/* this is kinda odd. If the old package exists, at this point we make a
* NEW transaction, unrelated to handle->trans, and instantiate a "remove"
@ -858,7 +773,7 @@ cleanup:
return(ret);
}
int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
int _alpm_upgrade_packages(pmtrans_t *trans, pmdb_t *db)
{
int pkg_count, pkg_current;
alpm_list_t *targ;

3
lib/libalpm/add.h
View File

@ -25,8 +25,7 @@
#include "trans.h"
int _alpm_add_loadtarget(pmtrans_t *trans, pmdb_t *db, char *name);
int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data);
int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db);
int _alpm_upgrade_packages(pmtrans_t *trans, pmdb_t *db);
#endif /* _ALPM_ADD_H */

2
lib/libalpm/deps.c
View File

@ -605,7 +605,7 @@ int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *pkg,
ALPM_LOG_FUNC;
if(local == NULL || dbs_sync == NULL) {
if(local == NULL) {
return(-1);
}

11
lib/libalpm/package.c
View File

@ -858,7 +858,11 @@ void _alpm_pkg_free(pmpkg_t *pkg)
FREE(pkg);
}
/* Free transaction specific fields */
/* This function should be used when removing a target from upgrade/sync target list
* Case 1: If pkg is a loaded package file (PKG_FROM_FILE), it will be freed.
* Case 2: If pkg is a pkgcache entry (PKG_FROM_CACHE), it won't be freed,
* only the transaction specific fields of pkg will be freed.
*/
void _alpm_pkg_free_trans(pmpkg_t *pkg)
{
ALPM_LOG_FUNC;
@ -867,6 +871,11 @@ void _alpm_pkg_free_trans(pmpkg_t *pkg)
return;
}
if(pkg->origin == PKG_FROM_FILE) {
_alpm_pkg_free(pkg);
return;
}
alpm_list_free(pkg->removes);
pkg->removes = NULL;
}

86
lib/libalpm/sync.c
View File

@ -43,6 +43,7 @@
#include "deps.h"
#include "conflict.h"
#include "trans.h"
#include "add.h"
#include "util.h"
#include "handle.h"
#include "alpm.h"
@ -282,6 +283,11 @@ static int compute_download_size(pmpkg_t *newpkg)
char *fpath;
off_t size = 0;
if(newpkg->origin == PKG_FROM_FILE) {
newpkg->download_size = 0;
return(0);
}
fname = alpm_pkg_get_filename(newpkg);
ASSERT(fname != NULL, RET_ERR(PM_ERR_PKG_INVALID_NAME, -1));
fpath = _alpm_filecache_find(fname);
@ -392,10 +398,6 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
}
}
/* Unresolvable packages will be removed from the target list, so
we free the transaction specific fields */
alpm_list_free_inner(unresolvable, (alpm_list_fn_free)_alpm_pkg_free_trans);
/* Set DEPEND reason for pulled packages */
for(i = resolved; i; i = i->next) {
pmpkg_t *pkg = i->data;
@ -404,6 +406,10 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
}
}
/* Unresolvable packages will be removed from the target list, so
we free the transaction specific fields */
alpm_list_free_inner(unresolvable, (alpm_list_fn_free)_alpm_pkg_free_trans);
/* re-order w.r.t. dependencies */
alpm_list_free(trans->packages);
trans->packages = _alpm_sortbydeps(resolved, 0);
@ -468,8 +474,8 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
_alpm_log(PM_LOG_WARNING,
_("removing '%s' from target list because it conflicts with '%s'\n"),
rsync->name, sync->name);
_alpm_pkg_free_trans(rsync); /* rsync is not transaction target anymore */
trans->packages = alpm_list_remove(trans->packages, rsync, _alpm_pkg_cmp, NULL);
_alpm_pkg_free_trans(rsync); /* rsync is not transaction target anymore */
continue;
}
@ -711,7 +717,7 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
{
alpm_list_t *i, *j, *files = NULL;
alpm_list_t *deltas = NULL;
pmtrans_t *tr_remove = NULL, *tr_upgrade = NULL;
pmtrans_t *tr_remove = NULL;
int replaces = 0;
int errors = 0;
const char *cachedir = NULL;
@ -743,9 +749,8 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
for(j = trans->packages; j; j = j->next) {
pmpkg_t *spkg = j->data;
pmdb_t *dbs = spkg->origin_data.db;
if(current == dbs) {
if(spkg->origin == PKG_FROM_CACHE && current == spkg->origin_data.db) {
const char *fname = NULL;
fname = alpm_pkg_get_filename(spkg);
@ -837,13 +842,35 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
errors = 0;
for(i = trans->packages; i; i = i->next) {
pmpkg_t *spkg = i->data;
if(spkg->origin == PKG_FROM_FILE) {
continue; /* pkg_load() has been already called, this package is valid */
}
const char *filename = alpm_pkg_get_filename(spkg);
const char *md5sum = alpm_pkg_get_md5sum(spkg);
if(test_md5sum(trans, filename, md5sum) != 0) {
errors++;
*data = alpm_list_add(*data, strdup(filename));
continue;
}
/* load the package file and replace pkgcache entry with it in the target list */
/* TODO: alpm_pkg_get_db() will not work on this target anymore */
_alpm_log(PM_LOG_DEBUG, "replacing pkgcache entry with package file for target %s\n", spkg->name);
char *filepath = _alpm_filecache_find(filename);
pmpkg_t *pkgfile;
if(alpm_pkg_load(filepath, 1, &pkgfile) != 0) {
_alpm_pkg_free(pkgfile);
errors++;
*data = alpm_list_add(*data, strdup(filename));
FREE(filepath);
continue;
}
FREE(filepath);
pkgfile->reason = spkg->reason; /* copy over install reason */
pkgfile->removes = alpm_list_copy(spkg->removes); /* copy over removes list */
i->data = pkgfile;
_alpm_pkg_free_trans(spkg); /* spkg has been removed from the target list */
}
if(errors) {
pm_errno = PM_ERR_PKG_INVALID;
@ -856,32 +883,22 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
trans->state = STATE_COMMITING;
/* Create remove and upgrade transactions */
/* Create remove transaction */
tr_remove = _alpm_trans_new();
if(tr_remove == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not create removal transaction\n"));
goto error;
}
tr_upgrade = _alpm_trans_new();
if(tr_upgrade == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not create transaction\n"));
goto error;
}
if(_alpm_trans_init(tr_remove, PM_TRANS_TYPE_REMOVE, PM_TRANS_FLAG_NODEPS, NULL, NULL, NULL) == -1) {
_alpm_log(PM_LOG_ERROR, _("could not initialize the removal transaction\n"));
goto error;
}
if(_alpm_trans_init(tr_upgrade, PM_TRANS_TYPE_UPGRADE, trans->flags, trans->cb_event, trans->cb_conv, trans->cb_progress) == -1) {
_alpm_log(PM_LOG_ERROR, _("could not initialize transaction\n"));
goto error;
}
/* adding targets */
/* adding targets to the remove transaction */
for(i = trans->packages; i; i = i->next) {
pmpkg_t *spkg = i->data;
alpm_list_t *j;
/* remove transaction */
for(j = spkg->removes; j; j = j->next) {
pmpkg_t *pkg = j->data;
if(!_alpm_pkg_find(tr_remove->packages, pkg->name)) {
@ -891,27 +908,6 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
replaces++;
}
}
/* upgrade transaction */
const char *fname;
char *fpath;
fname = alpm_pkg_get_filename(spkg);
if(fname == NULL) {
goto error;
}
/* Loop through the cache dirs until we find a matching file */
fpath = _alpm_filecache_find(fname);
if(_alpm_trans_addtarget(tr_upgrade, fpath) == -1) {
FREE(fpath);
goto error;
}
FREE(fpath);
/* using alpm_list_last() is ok because addtarget() adds the new target at the
* end of the tr->packages list */
pmpkg_t *ipkg = alpm_list_last(tr_upgrade->packages)->data;
ipkg->reason = spkg->reason;
}
/* fileconflict check */
@ -919,8 +915,8 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, "looking for file conflicts\n");
alpm_list_t *conflict = _alpm_db_find_fileconflicts(db_local, tr_upgrade,
tr_upgrade->packages, tr_remove->packages);
alpm_list_t *conflict = _alpm_db_find_fileconflicts(db_local, trans,
trans->packages, tr_remove->packages);
if(conflict) {
pm_errno = PM_ERR_FILE_CONFLICTS;
if(data) {
@ -953,8 +949,7 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
/* install targets */
_alpm_log(PM_LOG_DEBUG, "installing packages\n");
/* add_prepare is not needed */
if(_alpm_trans_commit(tr_upgrade, NULL) == -1) {
if(_alpm_upgrade_packages(trans, handle->db_local) == -1) {
_alpm_log(PM_LOG_ERROR, _("could not commit transaction\n"));
goto error;
}
@ -964,7 +959,6 @@ error:
FREELIST(files);
alpm_list_free(deltas);
_alpm_trans_free(tr_remove);
_alpm_trans_free(tr_upgrade);
return(ret);
}

16
lib/libalpm/trans.c
View File

@ -247,7 +247,7 @@ void _alpm_trans_free(pmtrans_t *trans)
return;
}
if(trans->type == PM_TRANS_TYPE_SYNC) {
if(trans->type == PM_TRANS_TYPE_SYNC || trans->type == PM_TRANS_TYPE_UPGRADE) {
alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_pkg_free_trans);
} else {
alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_pkg_free);
@ -367,12 +367,6 @@ int _alpm_trans_prepare(pmtrans_t *trans, alpm_list_t **data)
}
switch(trans->type) {
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_prepare(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_add_prepare() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
case PM_TRANS_TYPE_REMOVEUPGRADE:
if(_alpm_remove_prepare(trans, handle->db_local, data) == -1) {
@ -380,6 +374,7 @@ int _alpm_trans_prepare(pmtrans_t *trans, alpm_list_t **data)
return(-1);
}
break;
case PM_TRANS_TYPE_UPGRADE:
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_prepare(trans, handle->db_local, handle->dbs_sync, data) == -1) {
/* pm_errno is set by _alpm_sync_prepare() */
@ -411,12 +406,6 @@ int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data)
trans->state = STATE_COMMITING;
switch(trans->type) {
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_commit(trans, handle->db_local) == -1) {
/* pm_errno is set by _alpm_add_commit() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
case PM_TRANS_TYPE_REMOVEUPGRADE:
if(_alpm_remove_commit(trans, handle->db_local) == -1) {
@ -424,6 +413,7 @@ int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data)
return(-1);
}
break;
case PM_TRANS_TYPE_UPGRADE:
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_commit(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_sync_commit() */

8
pactest/tests/depconflict110.py
View File

@ -7,7 +7,7 @@ self.addpkg(p);
lp = pmpkg("pkg2", "1.0-1")
self.addpkg2db("local", lp)
self.args = "-U %s" % p.filename()
self.addrule("PACMAN_RETCODE=1")
self.addrule("!PKG_EXIST=pkg1")
self.addrule("PKG_EXIST=pkg2")
self.args = "-U %s --ask=4" % p.filename()
self.addrule("PACMAN_RETCODE=0")
self.addrule("PKG_EXIST=pkg1")
self.addrule("!PKG_EXIST=pkg2")

4
pactest/tests/upgrade051.py
View File

@ -8,10 +8,8 @@ p.conflicts = ["pkg1"]
p.provides = ["pkg1"]
self.addpkg(p)
self.args = "-U %s" % p.filename()
self.args = "-U %s --ask=4" % p.filename()
self.addrule("PACMAN_RETCODE=0")
self.addrule("!PKG_EXIST=pkg1")
self.addrule("PKG_EXIST=pkg2")
self.expectfailure = True

28
pactest/tests/upgrade090.py Normal file
View File

@ -0,0 +1,28 @@
self.description = "-U syncdeps test"
p1 = pmpkg("pkg1", "1.0-2")
p1.files = ["bin/pkg1"]
p2 = pmpkg("pkg2", "1.0-2")
p2.depends = ["dep"]
p3 = pmpkg("pkg3", "1.0-2")
p3.depends = ["unres"]
for p in p1, p2, p3:
self.addpkg(p)
sp = pmpkg("dep")
sp.files = ["bin/dep"]
self.addpkg2db("sync", sp)
self.args = "-U %s --ask=32" % " ".join([p.filename() for p in p1, p2, p3])
self.addrule("PACMAN_RETCODE=0")
for p in p1, p2, sp:
self.addrule("PKG_EXIST=%s" % p.name)
for f in p.files:
self.addrule("FILE_EXIST=%s" % f)
self.addrule("PKG_VERSION=pkg1|1.0-2")
self.addrule("PKG_VERSION=pkg2|1.0-2")
self.addrule("!PKG_EXIST=pkg3")

69
src/pacman/upgrade.c
View File

@ -121,25 +121,6 @@ int pacman_upgrade(alpm_list_t *targets)
}
}
break;
case PM_ERR_FILE_CONFLICTS:
for(i = data; i; i = alpm_list_next(i)) {
pmfileconflict_t *conflict = alpm_list_getdata(i);
switch(alpm_fileconflict_get_type(conflict)) {
case PM_FILECONFLICT_TARGET:
printf(_("%s exists in both '%s' and '%s'\n"),
alpm_fileconflict_get_file(conflict),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_ctarget(conflict));
break;
case PM_FILECONFLICT_FILESYSTEM:
printf(_("%s: %s exists in filesystem\n"),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_file(conflict));
break;
}
}
printf(_("\nerrors occurred, no packages were upgraded.\n"));
break;
default:
break;
}
@ -147,12 +128,56 @@ int pacman_upgrade(alpm_list_t *targets)
FREELIST(data);
return(1);
}
alpm_list_free(data);
/* Step 3: perform the installation */
if(alpm_trans_commit(NULL) == -1) {
/* print targets and ask user confirmation */
alpm_list_t *packages = alpm_trans_get_pkgs();
if(packages == NULL) { /* we are done */
trans_release();
return(retval);
}
display_synctargets(packages);
printf("\n");
int confirm = yesno(_("Proceed with installation?"));
if(!confirm) {
trans_release();
return(retval);
}
if(alpm_trans_commit(&data) == -1) {
pm_fprintf(stderr, PM_LOG_ERROR, _("failed to commit transaction (%s)\n"),
alpm_strerrorlast());
alpm_strerrorlast());
switch(pm_errno) {
alpm_list_t *i;
case PM_ERR_FILE_CONFLICTS:
for(i = data; i; i = alpm_list_next(i)) {
pmfileconflict_t *conflict = alpm_list_getdata(i);
switch(alpm_fileconflict_get_type(conflict)) {
case PM_FILECONFLICT_TARGET:
printf(_("%s exists in both '%s' and '%s'\n"),
alpm_fileconflict_get_file(conflict),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_ctarget(conflict));
break;
case PM_FILECONFLICT_FILESYSTEM:
printf(_("%s: %s exists in filesystem\n"),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_file(conflict));
break;
}
}
break;
case PM_ERR_PKG_INVALID:
case PM_ERR_DLT_INVALID:
for(i = data; i; i = alpm_list_next(i)) {
char *filename = alpm_list_getdata(i);
printf(_("%s is invalid or corrupted\n"), filename);
}
break;
default:
break;
}
FREELIST(data);
trans_release();
return(1);
}