From dde7b6f87a0d70babbb6c8951b8c369a4aa6601d Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Sun, 10 Jun 2007 23:16:09 -0400 Subject: Attempt to clean up _alpm_sync_prepare This function is an absolute disaster, so we'll take it one step at a time here. This was a quick once-over of the whole thing, trying to straighten out some of the spaghetti code and fix some mistakes that others found. We are now down to two failing pactests again: sync300 and upgrade051. Signed-off-by: Dan McGee --- lib/libalpm/sync.c | 120 +++++++++++++++++++++++++---------------------------- 1 file changed, 56 insertions(+), 64 deletions(-) (limited to 'lib/libalpm') diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c index f7f24622..87da9695 100644 --- a/lib/libalpm/sync.c +++ b/lib/libalpm/sync.c @@ -380,10 +380,9 @@ static int syncpkg_cmp(const void *s1, const void *s2) int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync, alpm_list_t **data) { alpm_list_t *deps = NULL; - alpm_list_t *list = NULL; /* list allowing checkdeps usage with data from trans->packages */ - alpm_list_t *trail = NULL; /* breadcrumb list to avoid running into circles */ - alpm_list_t *asked = NULL; - alpm_list_t *i, *j, *k, *l; + alpm_list_t *list = NULL; /* allow checkdeps usage with trans->packages */ + alpm_list_t *trail = NULL; /* breadcrumb list to avoid running in circles */ + alpm_list_t *i, *j; int ret = 0; ALPM_LOG_FUNC; @@ -406,7 +405,8 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync _alpm_log(PM_LOG_DEBUG, _("resolving target's dependencies")); for(i = trans->packages; i; i = i->next) { pmpkg_t *spkg = ((pmsyncpkg_t *)i->data)->pkg; - if(_alpm_resolvedeps(db_local, dbs_sync, spkg, list, trail, trans, data) == -1) { + if(_alpm_resolvedeps(db_local, dbs_sync, spkg, list, + trail, trans, data) == -1) { /* pm_errno is set by resolvedeps */ ret = -1; goto cleanup; @@ -430,13 +430,11 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync if((trans->flags & PM_TRANS_FLAG_DEPENDSONLY)) { void *vpkg; pmsyncpkg_t *sync; - const char *pkgname; - pkgname = alpm_pkg_get_name(spkg); _alpm_log(PM_LOG_DEBUG, "removing package %s-%s from the transaction targets", - pkgname, alpm_pkg_get_version(spkg)); + alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg)); - sync = _alpm_sync_find(trans->packages, pkgname); + sync = _alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg)); trans->packages = alpm_list_remove(trans->packages, sync, syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); } @@ -444,23 +442,24 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync } /* re-order w.r.t. dependencies */ - k = l = NULL; - for(i=trans->packages; i; i=i->next) { - pmsyncpkg_t *s = (pmsyncpkg_t*)i->data; - k = alpm_list_add(k, s->pkg); + alpm_list_t *sortlist = NULL; + alpm_list_t *newpkgs = NULL; + for(i = trans->packages; i; i = i->next) { + pmsyncpkg_t *s = i->data; + sortlist = alpm_list_add(sortlist, s->pkg); } - k = _alpm_sortbydeps(k, PM_TRANS_TYPE_ADD); - for(i=k; i; i=i->next) { - for(j=trans->packages; j; j=j->next) { - pmsyncpkg_t *s = (pmsyncpkg_t*)j->data; - if(s->pkg==i->data) { - l = alpm_list_add(l, s); + sortlist = _alpm_sortbydeps(sortlist, PM_TRANS_TYPE_ADD); + for(i = sortlist; i; i = i->next) { + for(j = trans->packages; j; j = j->next) { + pmsyncpkg_t *s = j->data; + if(s->pkg == i->data) { + newpkgs = alpm_list_add(newpkgs, s); } } } - alpm_list_free(k); + alpm_list_free(sortlist); alpm_list_free(trans->packages); - trans->packages = l; + trans->packages = newpkgs; EVENT(trans, PM_TRANS_EVT_RESOLVEDEPS_DONE, NULL, NULL); @@ -488,30 +487,26 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync deps = _alpm_checkconflicts(db_local, list); if(deps) { int errorout = 0; + alpm_list_t *asked = NULL; for(i = deps; i && !errorout; i = i->next) { pmdepmissing_t *miss = i->data; - int found = 0; pmsyncpkg_t *sync; - pmpkg_t *local; + pmpkg_t *found = NULL; _alpm_log(PM_LOG_DEBUG, _("package '%s' conflicts with '%s'"), miss->target, miss->depend.name); - - /* check if the conflicting package is one that's about to be removed/replaced. - * if so, then just ignore it - */ + /* check if the conflicting package is about to be removed/replaced. + * if so, then just ignore it. */ for(j = trans->packages; j && !found; j = j->next) { sync = j->data; if(sync->type == PM_SYNC_TYPE_REPLACE) { - if(_alpm_pkg_find(miss->depend.name, sync->data)) { - found = 1; - } + found = _alpm_pkg_find(miss->depend.name, sync->data); } } if(found) { _alpm_log(PM_LOG_DEBUG, _("'%s' is already elected for removal -- skipping"), - miss->depend.name); + alpm_pkg_get_name(found)); continue; } @@ -521,18 +516,15 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync miss->target); continue; } - local = _alpm_db_get_pkgfromcache(db_local, miss->depend.name); - /* check if this package also "provides" the package it's conflicting with - */ - if(alpm_list_find_str(alpm_pkg_get_provides(sync->pkg), miss->depend.name)) { - /* so just treat it like a "replaces" item so the REQUIREDBY - * fields are inherited properly. - */ - _alpm_log(PM_LOG_DEBUG, _("package '%s' provides its own conflict"), miss->target); - if(local) { - /* nothing to do for now: it will be handled later - * (not the same behavior as in pacman 2.x) */ - } else { + pmpkg_t *local = _alpm_db_get_pkgfromcache(db_local, miss->depend.name); + /* check if this package provides the package it's conflicting with */ + if(alpm_list_find_str(alpm_pkg_get_provides(sync->pkg), + miss->depend.name)) { + /* treat like a replaces item so requiredby fields are + * inherited properly. */ + _alpm_log(PM_LOG_DEBUG, _("package '%s' provides its own conflict"), + miss->target); + if(!local) { char *rmpkg = NULL; int target, depend; /* hmmm, depend.name isn't installed, so it must be conflicting @@ -546,8 +538,8 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync * opting for xfree86 instead. */ - /* figure out which one was requested in targets. If they both were, - * then it's still an unresolvable conflict. */ + /* figure out which one was requested in targets. If they both + * were, then it's still an unresolvable conflict. */ target = alpm_list_find_str(trans->targets, miss->target); depend = alpm_list_find_str(trans->targets, miss->depend.name); if(depend && !target) { @@ -568,31 +560,26 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync if(rmpkg) { pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, rmpkg); void *vpkg; - _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), rsync->pkg->name); - trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg); + _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), + rsync->pkg->name); + trans->packages = alpm_list_remove(trans->packages, rsync, + syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); continue; } } } - /* It's a conflict -- see if they want to remove it - */ - _alpm_log(PM_LOG_DEBUG, _("resolving package '%s' conflict"), miss->target); + /* It's a conflict -- see if they want to remove it */ + _alpm_log(PM_LOG_DEBUG, _("resolving package '%s' conflict"), + miss->target); if(local) { int doremove = 0; if(!alpm_list_find_str(asked, miss->depend.name)) { - QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target, miss->depend.name, NULL, &doremove); + QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target, + miss->depend.name, NULL, &doremove); asked = alpm_list_add(asked, strdup(miss->depend.name)); if(doremove) { - pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, miss->depend.name); - pmpkg_t *q = _alpm_pkg_new(miss->depend.name, NULL); - if(q == NULL) { - if(data) { - FREELIST(*data); - } - ret = -1; - goto cleanup; - } + pmpkg_t *q = _alpm_pkg_dup(local); q->requiredby = alpm_list_strdup(alpm_pkg_get_requiredby(local)); if(sync->type != PM_SYNC_TYPE_REPLACE) { /* switch this sync type to REPLACE */ @@ -601,13 +588,19 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync sync->data = NULL; } /* append to the replaces list */ - _alpm_log(PM_LOG_DEBUG, _("electing '%s' for removal"), miss->depend.name); + _alpm_log(PM_LOG_DEBUG, _("electing '%s' for removal"), + miss->depend.name); sync->data = alpm_list_add(sync->data, q); + /* see if the package is in the current target list */ + pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, + miss->depend.name); if(rsync) { /* remove it from the target list */ void *vpkg; - _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), miss->depend.name); - trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg); + _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), + miss->depend.name); + trans->packages = alpm_list_remove(trans->packages, rsync, + syncpkg_cmp, &vpkg); _alpm_sync_free(vpkg); } } else { @@ -719,7 +712,6 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync cleanup: alpm_list_free(list); alpm_list_free(trail); - FREELIST(asked); return(ret); } -- cgit v1.2.3-24-g4f1b