mirror of
https://github.com/moparisthebest/pacman
synced 2024-12-22 15:58:50 -05:00
Remove find_replacements()
"Foo replaces bar" simply means that "foo is a new version of bar".
So this patch refactors the code to use this "rule".
_alpm_sync_sysupgrade now does the following for each local package [bar]
(pseudo-code):
for db in syncdbs {
if(db contains bar) {check if db/bar is an upgrade; break;}
replacers = find(bar replacers in db);
if(replacers!=NULL) {ask_user; break;}
}
Note:
1. Replacers are grouped per repo. If more than one package replace bar in
a repo, all of them are considered ("package set of bar replacers").
2. If repo1/foo1 and repo2/foo2 both replaces bar, only repo1/foo1 is
considered (if repo1 stands before repo2 in pacman.conf). FS#11737 is fixed.
3. It can happen that pacman doesn't consider any replacer, if it found a
literal "earlier", so sync132.py modified accordingly (btw, that situation
should not appear irl).
The new sysupgrade code doesn't use sync_newversion(), so I removed the
"local is newer than repo" message, which was annoying with -Qu and
SyncFirst.
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
Dan McGee
parent
f89f7e136b
commit
882bff36ac
@ -48,86 +48,15 @@
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#include "dload.h"
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#include "delta.h"
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/* Find recommended replacements for packages during a sync.
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*/
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static int find_replacements(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync)
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{
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alpm_list_t *i, *j, *k; /* wow */
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ALPM_LOG_FUNC;
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/* check for "recommended" package replacements */
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_alpm_log(PM_LOG_DEBUG, "checking for package replacements\n");
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for(i = dbs_sync; i; i = i->next) {
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pmdb_t *db = i->data;
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/* for each db, check each package's REPLACES list */
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for(j = _alpm_db_get_pkgcache(db); j; j = j->next) {
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pmpkg_t *spkg = j->data;
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for(k = alpm_pkg_get_replaces(spkg); k; k = k->next) {
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const char *replacement = k->data;
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pmpkg_t *lpkg = _alpm_db_get_pkgfromcache(db_local, replacement);
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if(!lpkg) {
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continue;
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}
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_alpm_log(PM_LOG_DEBUG, "checking replacement '%s' for package '%s'\n",
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replacement, spkg->name);
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/* ignore if EITHER the local or replacement package are to be ignored */
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if(_alpm_pkg_should_ignore(spkg) || _alpm_pkg_should_ignore(lpkg)) {
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_alpm_log(PM_LOG_WARNING, _("%s-%s: ignoring package upgrade (to be replaced by %s-%s)\n"),
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alpm_pkg_get_name(lpkg), alpm_pkg_get_version(lpkg),
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alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg));
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} else {
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int doreplace = 0;
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QUESTION(trans, PM_TRANS_CONV_REPLACE_PKG, lpkg, spkg, db->treename, &doreplace);
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if(!doreplace) {
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continue;
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}
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/* if confirmed, add this to the 'final' list, designating 'lpkg' as
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* the package to replace.
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*/
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/* check if spkg->name is already in the packages list. */
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/* TODO: same package name doesn't mean same package */
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pmpkg_t *tpkg = _alpm_pkg_find(trans->packages, alpm_pkg_get_name(spkg));
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if(tpkg) {
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/* found it -- just append to the removes list */
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tpkg->removes = alpm_list_add(tpkg->removes, lpkg);
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/* check the to-be-replaced package's reason field */
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if(alpm_pkg_get_reason(lpkg) == PM_PKG_REASON_EXPLICIT) {
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tpkg->reason = PM_PKG_REASON_EXPLICIT;
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}
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} else {
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/* none found -- enter pkg into the final sync list */
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/* copy over reason */
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spkg->reason = alpm_pkg_get_reason(lpkg);
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spkg->removes = alpm_list_add(NULL, lpkg);
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_alpm_log(PM_LOG_DEBUG, "adding package %s-%s to the transaction targets\n",
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alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg));
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trans->packages = alpm_list_add(trans->packages, spkg);
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}
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_alpm_log(PM_LOG_DEBUG, "%s-%s elected for removal (to be replaced by %s-%s)\n",
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alpm_pkg_get_name(lpkg), alpm_pkg_get_version(lpkg),
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alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg));
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}
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}
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}
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}
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return(0);
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}
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/** Check for new version of pkg in sync repos
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* (only the first occurrence is considered in sync)
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*/
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pmpkg_t SYMEXPORT *alpm_sync_newversion(pmpkg_t *pkg, alpm_list_t *dbs_sync)
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{
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ASSERT(pkg != NULL, return(NULL));
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alpm_list_t *i;
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pmpkg_t *spkg = NULL;
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int cmp;
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for(i = dbs_sync; !spkg && i; i = i->next) {
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spkg = _alpm_db_get_pkgfromcache(i->data, alpm_pkg_get_name(pkg));
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@ -140,77 +69,108 @@ pmpkg_t SYMEXPORT *alpm_sync_newversion(pmpkg_t *pkg, alpm_list_t *dbs_sync)
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}
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/* compare versions and see if spkg is an upgrade */
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cmp = _alpm_pkg_compare_versions(spkg, pkg);
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if(cmp > 0) {
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if(_alpm_pkg_compare_versions(spkg, pkg) > 0) {
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_alpm_log(PM_LOG_DEBUG, "new version of '%s' found (%s => %s)\n",
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alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg),
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alpm_pkg_get_version(spkg));
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return(spkg);
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}
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if (cmp < 0) {
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pmdb_t *db = spkg->origin_data.db;
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_alpm_log(PM_LOG_WARNING, _("%s: local (%s) is newer than %s (%s)\n"),
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alpm_pkg_get_name(pkg), alpm_pkg_get_version(pkg),
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alpm_db_get_name(db), alpm_pkg_get_version(spkg));
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}
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/* spkg is not an upgrade */
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return(NULL);
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}
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int _alpm_sync_sysupgrade(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync)
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{
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alpm_list_t *i, *j, *replaced = NULL;
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alpm_list_t *i, *j, *k;
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ALPM_LOG_FUNC;
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/* check for "recommended" package replacements */
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if(find_replacements(trans, db_local, dbs_sync)) {
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return(-1);
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}
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/* compute the to-be-replaced packages for efficiency */
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for(i = trans->packages; i; i = i->next) {
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pmpkg_t *spkg = i->data;
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for(j = spkg->removes; j; j = j->next) {
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replaced = alpm_list_add(replaced, j->data);
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}
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}
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/* for all not-replaced local package we check for upgrade */
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_alpm_log(PM_LOG_DEBUG, "checking for package upgrades\n");
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for(i = _alpm_db_get_pkgcache(db_local); i; i = i->next) {
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pmpkg_t *local = i->data;
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pmpkg_t *lpkg = i->data;
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if(_alpm_pkg_find(replaced, alpm_pkg_get_name(local))) {
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_alpm_log(PM_LOG_DEBUG, "'%s' is already elected for removal -- skipping\n",
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alpm_pkg_get_name(local));
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if(_alpm_pkg_find(trans->packages, lpkg->name)) {
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_alpm_log(PM_LOG_DEBUG, "%s is already in the target list -- skipping\n", lpkg->name);
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continue;
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}
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pmpkg_t *spkg = alpm_sync_newversion(local, dbs_sync);
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if(spkg) {
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/* we found a new version */
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/* skip packages in IgnorePkg or in IgnoreGroup */
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if(_alpm_pkg_should_ignore(spkg)) {
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/* Search for literal then replacers in each sync database.
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* If found, don't check other databases */
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for(j = dbs_sync; j; j = j->next) {
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pmdb_t *sdb = j->data;
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/* Check sdb */
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pmpkg_t *spkg = _alpm_db_get_pkgfromcache(sdb, lpkg->name);
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if(spkg) { /* 1. literal was found in sdb */
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int cmp = _alpm_pkg_compare_versions(spkg, lpkg);
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if(cmp > 0) {
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_alpm_log(PM_LOG_DEBUG, "new version of '%s' found (%s => %s)\n",
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lpkg->name, lpkg->version, spkg->version);
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/* check IgnorePkg/IgnoreGroup */
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if(_alpm_pkg_should_ignore(spkg) || _alpm_pkg_should_ignore(lpkg)) {
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_alpm_log(PM_LOG_WARNING, _("%s: ignoring package upgrade (%s => %s)\n"),
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alpm_pkg_get_name(local), alpm_pkg_get_version(local),
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alpm_pkg_get_version(spkg));
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lpkg->name, lpkg->version, spkg->version);
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} else {
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_alpm_log(PM_LOG_DEBUG, "adding package %s-%s to the transaction targets\n",
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spkg->name, spkg->version);
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trans->packages = alpm_list_add(trans->packages, spkg);
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}
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} else if(cmp < 0) {
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_alpm_log(PM_LOG_WARNING, _("%s: local (%s) is newer than %s (%s)\n"),
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lpkg->name, lpkg->version, sdb->treename, spkg->version);
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}
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break; /* jump to next local package */
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} else { /* 2. search for replacers in sdb */
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int found = 0;
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for(k = _alpm_db_get_pkgcache(sdb); k; k = k->next) {
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spkg = k->data;
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if(alpm_list_find_str(alpm_pkg_get_replaces(spkg), lpkg->name)) {
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found = 1;
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/* check IgnorePkg/IgnoreGroup */
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if(_alpm_pkg_should_ignore(spkg) || _alpm_pkg_should_ignore(lpkg)) {
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_alpm_log(PM_LOG_WARNING, _("ignoring package replacement (%s-%s => %s-%s)\n"),
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lpkg->name, lpkg->version, spkg->name, spkg->version);
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continue;
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}
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/* add the upgrade package to the target list */
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if(_alpm_pkg_find(trans->packages, alpm_pkg_get_name(spkg))) {
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/* avoid duplicated targets */
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int doreplace = 0;
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QUESTION(trans, PM_TRANS_CONV_REPLACE_PKG, lpkg, spkg, sdb->treename, &doreplace);
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if(!doreplace) {
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continue;
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}
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/* If spkg is already in the target list, we append lpkg to spkg's removes list */
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pmpkg_t *tpkg = _alpm_pkg_find(trans->packages, spkg->name);
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if(tpkg) {
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/* sanity check, multiple repos can contain spkg->name */
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if(tpkg->origin_data.db != sdb) {
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_alpm_log(PM_LOG_WARNING, _("cannot replace %s by %s\n"),
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lpkg->name, spkg->name);
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continue;
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}
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_alpm_log(PM_LOG_DEBUG, "appending %s to the removes list of %s\n",
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lpkg->name, tpkg->name);
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tpkg->removes = alpm_list_add(tpkg->removes, lpkg);
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/* check the to-be-replaced package's reason field */
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if(alpm_pkg_get_reason(lpkg) == PM_PKG_REASON_EXPLICIT) {
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tpkg->reason = PM_PKG_REASON_EXPLICIT;
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}
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} else { /* add spkg to the target list */
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/* copy over reason */
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spkg->reason = alpm_pkg_get_reason(lpkg);
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spkg->removes = alpm_list_add(NULL, lpkg);
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_alpm_log(PM_LOG_DEBUG, "adding package %s-%s to the transaction targets\n",
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alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg));
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/* we don't set any reason here,
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it will be calculated from local package in add_commit */
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spkg->name, spkg->version);
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trans->packages = alpm_list_add(trans->packages, spkg);
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}
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}
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}
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if(found) {
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break; /* jump to next local package */
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}
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}
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}
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}
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alpm_list_free(replaced);
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return(0);
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}
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@ -14,5 +14,5 @@ self.addpkg2db("local", lp)
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self.args = "-Su"
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self.addrule("PACMAN_RETCODE=0")
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self.addrule("PKG_EXIST=pkg1")
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self.addrule("!PKG_EXIST=pkg2")
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self.addrule("!PKG_EXIST=pkg1")
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self.addrule("PKG_EXIST=pkg2")
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