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-rw-r--r--lib/libalpm/add.c22
-rw-r--r--lib/libalpm/conflict.c83
-rw-r--r--lib/libalpm/conflict.h2
-rw-r--r--lib/libalpm/remove.c31
-rw-r--r--lib/libalpm/trans.c6
-rw-r--r--lib/libalpm/trans.h7
6 files changed, 74 insertions, 77 deletions
diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c
index b503323b..28e66354 100644
--- a/lib/libalpm/add.c
+++ b/lib/libalpm/add.c
@@ -316,25 +316,19 @@ int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
/* Check for file conflicts
*/
if(!(trans->flags & PM_TRANS_FLAG_FORCE)) {
- alpm_list_t *skiplist = NULL;
-
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, _("looking for file conflicts"));
- lp = _alpm_db_find_conflicts(db, trans, handle->root, &skiplist);
+ lp = _alpm_db_find_conflicts(db, trans, handle->root);
if(lp != NULL) {
if(data) {
*data = lp;
} else {
FREELIST(lp);
}
- FREELIST(skiplist);
RET_ERR(PM_ERR_FILE_CONFLICTS, -1);
}
- /* copy the file skiplist into the transaction */
- trans->skiplist = skiplist;
-
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_DONE, NULL, NULL);
}
@@ -423,7 +417,7 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
if(oldpkg) {
/* 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"
- * with the type PM_TRANS_TYPE_UPGRADE */
+ * with the type PM_TRANS_TYPE_UPGRADE. TODO: kill this weird behavior. */
pmtrans_t *tr = _alpm_trans_new();
_alpm_log(PM_LOG_DEBUG, _("removing old package first (%s-%s)"), oldpkg->name, oldpkg->version);
@@ -441,8 +435,8 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
RET_ERR(PM_ERR_TRANS_ABORT, -1);
}
- /* copy the skiplist over */
- tr->skiplist = alpm_list_strdup(trans->skiplist);
+ /* copy the remove skiplist over */
+ tr->skip_remove = alpm_list_strdup(trans->skip_remove);
alpm_list_t *b;
/* Add files in the NEW package's backup array to the noupgrade array
@@ -538,11 +532,19 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
/* if a file is in NoExtract then we never extract it */
if(alpm_list_find_str(handle->noextract, entryname)) {
+ _alpm_log(PM_LOG_DEBUG, _("%s is in NoExtract, skipping extraction"), entryname);
alpm_logaction(_("notice: %s is in NoExtract -- skipping extraction"), entryname);
archive_read_data_skip(archive);
continue;
}
+ /* if a file is in the add skiplist we never extract it */
+ if(alpm_list_find_str(trans->skip_add, filename)) {
+ _alpm_log(PM_LOG_DEBUG, _("%s is in trans->skip_add, skipping extraction"), entryname);
+ archive_read_data_skip(archive);
+ continue;
+ }
+
/* check is file already exists */
if(stat(filename, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
/* it does, is it a backup=() file?
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index 66e0b08d..a5f9590f 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -313,8 +313,7 @@ static alpm_list_t *add_fileconflict(alpm_list_t *conflicts,
return(conflicts);
}
-alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root,
- alpm_list_t **skip_list)
+alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root)
{
alpm_list_t *i, *j, *k;
alpm_list_t *conflicts = NULL;
@@ -366,50 +365,54 @@ alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root,
if(dbpkg) {
/* older ver of package currently installed */
tmpfiles = chk_filedifference(p1->files, alpm_pkg_get_files(dbpkg));
- for(j = tmpfiles; j; j = j->next) {
- filestr = j->data;
- _alpm_log(PM_LOG_DEBUG, "checking possible conflict: %s", filestr);
-
- snprintf(path, PATH_MAX, "%s%s", root, filestr);
-
- /* stat the file - if it exists and is not a dir, do some checks */
- if(lstat(path, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
- /* Look at all the targets to see if file has changed hands */
- for(k = targets; k; k = k->next) {
- p2 = (pmpkg_t *)k->data;
- /* Ensure we aren't looking at current package */
- if(strcmp(p2->name, p1->name)) {
- pmpkg_t *localp2 = _alpm_db_get_pkgfromcache(db, p2->name);
- /* Check if it used to exist in a package, but doesn't anymore */
- if(localp2 && !alpm_list_find_str(alpm_pkg_get_files(p2), filestr)
- && alpm_list_find_str(alpm_pkg_get_files(localp2), filestr)) {
- *skip_list = alpm_list_add(*skip_list, strdup(filestr));
- _alpm_log(PM_LOG_DEBUG, "adding to skiplist: %s", filestr);
- } else {
- conflicts = add_fileconflict(conflicts, PM_CONFLICT_TYPE_FILE,
- filestr, p1->name, NULL);
- break;
- }
- }
- }
- }
- }
- alpm_list_free_inner(tmpfiles, &free);
- alpm_list_free(tmpfiles);
} else {
/* no version of package currently installed */
- for(j = p1->files; j; j = j->next) {
- filestr = j->data;
-
- snprintf(path, PATH_MAX, "%s%s", root, filestr);
+ tmpfiles = alpm_list_strdup(p1->files);
+ }
- /* stat the file - if it exists and is not a dir, report a conflict */
- if(lstat(path, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
- conflicts = add_fileconflict(conflicts, PM_CONFLICT_TYPE_FILE,
- filestr, p1->name, NULL);
+ /* loop over each file to be installed */
+ for(j = tmpfiles; j; j = j->next) {
+ filestr = j->data;
+ _alpm_log(PM_LOG_DEBUG, "checking possible conflict: %s", filestr);
+
+ snprintf(path, PATH_MAX, "%s%s", root, filestr);
+
+ /* stat the file - if it exists and is not a dir, do some checks */
+ if(lstat(path, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
+ /* Look at all the targets to see if file has changed hands */
+ for(k = targets; k; k = k->next) {
+ p2 = (pmpkg_t *)k->data;
+ /* Ensure we aren't looking at current package */
+ if(p2 == p1) {
+ continue;
+ }
+ pmpkg_t *localp2 = _alpm_db_get_pkgfromcache(db, p2->name);
+ /* Check if it used to exist in a package, but doesn't anymore */
+ if(localp2 && !alpm_list_find_str(alpm_pkg_get_files(p2), filestr)
+ && alpm_list_find_str(alpm_pkg_get_files(localp2), filestr)) {
+ /* check if the file is now in the backup array */
+ if(alpm_list_find_str(alpm_pkg_get_backup(p1), filestr)) {
+ /* keep file intact if it is in backup array */
+ trans->skip_add = alpm_list_add(trans->skip_add, strdup(path));
+ trans->skip_remove = alpm_list_add(trans->skip_remove, strdup(path));
+ _alpm_log(PM_LOG_DEBUG, "file in backup array, adding to add and remove skiplist: %s", filestr);
+ } else {
+ /* skip removal of file, but not add. this will prevent a second
+ * package from removing the file when it was already installed
+ * by its new owner */
+ trans->skip_remove = alpm_list_add(trans->skip_remove, strdup(path));
+ _alpm_log(PM_LOG_DEBUG, "file changed packages, adding to remove skiplist: %s", filestr);
+ }
+ } else {
+ conflicts = add_fileconflict(conflicts, PM_CONFLICT_TYPE_FILE,
+ filestr, p1->name, NULL);
+ break;
+ }
}
}
}
+ alpm_list_free_inner(tmpfiles, &free);
+ alpm_list_free(tmpfiles);
}
return(conflicts);
diff --git a/lib/libalpm/conflict.h b/lib/libalpm/conflict.h
index 69ce727c..44507f72 100644
--- a/lib/libalpm/conflict.h
+++ b/lib/libalpm/conflict.h
@@ -34,7 +34,7 @@ struct __pmconflict_t {
};
alpm_list_t *_alpm_checkconflicts(pmdb_t *db, alpm_list_t *packages);
-alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root, alpm_list_t **skip_list);
+alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root);
#endif /* _ALPM_CONFLICT_H */
diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c
index faa58f9c..4b2350f8 100644
--- a/lib/libalpm/remove.c
+++ b/lib/libalpm/remove.c
@@ -155,19 +155,15 @@ int _alpm_remove_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
return(0);
}
-static int can_remove_file(const char *path)
+static int can_remove_file(pmtrans_t *trans, const char *path)
{
- alpm_list_t *i;
char file[PATH_MAX+1];
snprintf(file, PATH_MAX, "%s%s", handle->root, path);
- for(i = handle->trans->skiplist; i; i = i->next) {
- if(strcmp(file, i->data) == 0) {
- /* skipping this file, return success because "removing" this
- * file does nothing */
- return(1);
- }
+ if(alpm_list_find_str(trans->skip_remove, file)) {
+ /* return success because we will never actually remove this file */
+ return(1);
}
/* If we fail write permissions due to a read-only filesystem, abort.
* Assume all other possible failures are covered somewhere else */
@@ -175,7 +171,8 @@ static int can_remove_file(const char *path)
if(access(file, F_OK) == 0) {
/* only return failure if the file ACTUALLY exists and we don't have
* permissions */
- _alpm_log(PM_LOG_ERROR, _("cannot remove file '%s': %s"), file, strerror(errno));
+ _alpm_log(PM_LOG_ERROR, _("cannot remove file '%s': %s"),
+ file, strerror(errno));
return(0);
}
}
@@ -230,19 +227,11 @@ static void unlink_file(pmpkg_t *info, alpm_list_t *lp, alpm_list_t *targ,
_alpm_log(PM_LOG_DEBUG, _("removing directory %s"), file);
}
} else {
- /* check the "skip list" before removing the file.
+ /* check the remove skip list before removing the file.
* see the big comment block in db_find_conflicts() for an
* explanation. */
- int skipit = 0;
- alpm_list_t *j;
- for(j = trans->skiplist; j; j = j->next) {
- if(!strcmp(lp->data, (char*)j->data)) {
- skipit = 1;
- }
- }
- if(skipit) {
- _alpm_log(PM_LOG_WARNING, _("%s has changed ownership, skipping removal"),
- file);
+ if(alpm_list_find_str(trans->skip_remove, file)) {
+ _alpm_log(PM_LOG_DEBUG, _("%s is in trans->skip_remove, skipping removal"), file);
} else if(needbackup) {
/* if the file is flagged, back it up to .pacsave */
if(!(trans->type == PM_TRANS_TYPE_UPGRADE)) {
@@ -301,7 +290,7 @@ int _alpm_remove_commit(pmtrans_t *trans, pmdb_t *db)
if(!(trans->flags & PM_TRANS_FLAG_DBONLY)) {
for(lp = info->files; lp; lp = lp->next) {
- if(!can_remove_file(lp->data)) {
+ if(!can_remove_file(trans, lp->data)) {
_alpm_log(PM_LOG_DEBUG, _("not removing package '%s', can't remove all files"), info->name);
RET_ERR(PM_ERR_PKG_CANT_REMOVE, -1);
}
diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index 4969214f..64cb47c5 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -55,7 +55,8 @@ pmtrans_t *_alpm_trans_new()
trans->targets = NULL;
trans->packages = NULL;
- trans->skiplist = NULL;
+ trans->skip_add = NULL;
+ trans->skip_remove = NULL;
trans->type = 0;
trans->flags = 0;
trans->cb_event = NULL;
@@ -87,7 +88,8 @@ void _alpm_trans_free(void *data)
FREELISTPKGS(trans->packages);
}
- FREELIST(trans->skiplist);
+ FREELIST(trans->skip_add);
+ FREELIST(trans->skip_remove);
FREE(trans);
}
diff --git a/lib/libalpm/trans.h b/lib/libalpm/trans.h
index f0fe1e57..83b99abb 100644
--- a/lib/libalpm/trans.h
+++ b/lib/libalpm/trans.h
@@ -41,9 +41,10 @@ struct __pmtrans_t {
pmtranstype_t type;
unsigned int flags;
pmtransstate_t state;
- alpm_list_t *targets; /* alpm_list_t of (char *) */
- alpm_list_t *packages; /* alpm_list_t of (pmpkg_t *) or (pmsyncpkg_t *) */
- alpm_list_t *skiplist; /* alpm_list_t of (char *) */
+ alpm_list_t *targets; /* list of (char *) */
+ alpm_list_t *packages; /* list of (pmpkg_t *) or (pmsyncpkg_t *) */
+ alpm_list_t *skip_add; /* list of (char *) */
+ alpm_list_t *skip_remove; /* list of (char *) */
alpm_trans_cb_event cb_event;
alpm_trans_cb_conv cb_conv;
alpm_trans_cb_progress cb_progress;
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-05 18:33:45 +0100