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-rw-r--r--lib/libalpm/conflict.c133
1 files changed, 65 insertions, 68 deletions
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index ab9546cd..a00efe5c 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -299,94 +299,73 @@ void _alpm_fileconflict_free(alpm_fileconflict_t *conflict)
}
/**
- * @brief Recursively checks if a package owns all subdirectories and files in
- * a directory.
+ * @brief Recursively checks if a set of packages own all subdirectories and
+ * files in a directory.
*
* @param handle the context handle
* @param dirpath path of the directory to check
- * @param pkg package being checked against
+ * @param pkgs packages being checked against
*
- * @return 1 if a package owns all subdirectories and files or a directory
- * cannot be opened, 0 otherwise
+ * @return 1 if a package owns all subdirectories and files, 0 otherwise
*/
-static int dir_belongsto_pkg(alpm_handle_t *handle, const char *dirpath,
- alpm_pkg_t *pkg)
+static int dir_belongsto_pkgs(alpm_handle_t *handle, const char *dirpath,
+ alpm_list_t *pkgs)
{
- alpm_list_t *i;
- struct stat sbuf;
- char path[PATH_MAX];
- char abspath[PATH_MAX];
+ char path[PATH_MAX], full_path[PATH_MAX];
DIR *dir;
struct dirent *ent = NULL;
- const char *root = handle->root;
-
- /* check directory is actually in package - used for subdirectory checks */
- if(!alpm_filelist_contains(alpm_pkg_get_files(pkg), dirpath)) {
- _alpm_log(handle, ALPM_LOG_DEBUG,
- "directory %s not in package %s\n", dirpath, pkg->name);
- return 0;
- }
-
- /* TODO: this is an overly strict check but currently pacman will not
- * overwrite a directory with a file (case 10/11 in add.c). Adjusting that
- * is not simple as even if the directory is being unowned by a conflicting
- * package, pacman does not sort this to ensure all required directory
- * "removals" happen before installation of file/symlink */
- /* check that no other _installed_ package owns the directory */
- for(i = _alpm_db_get_pkgcache(handle->db_local); i; i = i->next) {
- if(pkg == i->data) {
- continue;
- }
-
- if(alpm_filelist_contains(alpm_pkg_get_files(i->data), dirpath)) {
- _alpm_log(handle, ALPM_LOG_DEBUG,
- "file %s also in package %s\n", dirpath,
- ((alpm_pkg_t*)i->data)->name);
- return 0;
- }
- }
-
- /* check all files in directory are owned by the package */
- snprintf(abspath, PATH_MAX, "%s%s", root, dirpath);
- dir = opendir(abspath);
+ snprintf(full_path, PATH_MAX, "%s%s", handle->root, dirpath);
+ dir = opendir(full_path);
if(dir == NULL) {
- return 1;
+ return 0;
}
while((ent = readdir(dir)) != NULL) {
const char *name = ent->d_name;
+ int owned = 0;
+ alpm_list_t *i;
+ struct stat sbuf;
if(strcmp(name, ".") == 0 || strcmp(name, "..") == 0) {
continue;
}
+
snprintf(path, PATH_MAX, "%s%s", dirpath, name);
- snprintf(abspath, PATH_MAX, "%s%s", root, path);
- if(stat(abspath, &sbuf) != 0) {
- continue;
- }
- if(S_ISDIR(sbuf.st_mode)) {
- if(dir_belongsto_pkg(handle, path, pkg)) {
- continue;
- } else {
- closedir(dir);
- return 0;
- }
- } else {
- if(alpm_filelist_contains(alpm_pkg_get_files(pkg), path)) {
- continue;
- } else {
- closedir(dir);
- _alpm_log(handle, ALPM_LOG_DEBUG,
- "unowned file %s found in directory\n", path);
- return 0;
+ snprintf(full_path, PATH_MAX, "%s%s", handle->root, path);
+
+ for(i = pkgs; i && !owned; i = i->next) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(i->data), path)) {
+ owned = 1;
}
}
+
+ if(owned && stat(full_path, &sbuf) != 0 && S_ISDIR(sbuf.st_mode)) {
+ owned = dir_belongsto_pkgs(handle, path, pkgs);
+ }
+
+ if(!owned) {
+ closedir(dir);
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "unowned file %s found in directory\n", path);
+ return 0;
+ }
}
closedir(dir);
return 1;
}
+static alpm_list_t *alpm_db_find_file_owners(alpm_db_t* db, const char *path)
+{
+ alpm_list_t *i, *owners = NULL;
+ for(i = alpm_db_get_pkgcache(db); i; i = i->next) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(i->data), path)) {
+ owners = alpm_list_add(owners, i->data);
+ }
+ }
+ return owners;
+}
+
/**
* @brief Find file conflicts that may occur during the transaction.
*
@@ -578,14 +557,32 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
}
/* check if all files of the dir belong to the installed pkg */
- if(!resolved_conflict && S_ISDIR(lsbuf.st_mode) && dbpkg) {
+ if(!resolved_conflict && S_ISDIR(lsbuf.st_mode)) {
+ alpm_list_t *owners;
char *dir = malloc(strlen(relative_path) + 2);
sprintf(dir, "%s/", relative_path);
- if(alpm_filelist_contains(alpm_pkg_get_files(dbpkg), dir)) {
- _alpm_log(handle, ALPM_LOG_DEBUG,
- "checking if all files in %s belong to %s\n",
- dir, dbpkg->name);
- resolved_conflict = dir_belongsto_pkg(handle, dir, dbpkg);
+
+ owners = alpm_db_find_file_owners(handle->db_local, dir);
+ if(owners) {
+ alpm_list_t *pkgs = NULL, *diff;
+
+ if(dbpkg) {
+ pkgs = alpm_list_add(pkgs, dbpkg);
+ }
+ pkgs = alpm_list_join(pkgs, alpm_list_copy(rem));
+ if((diff = alpm_list_diff(owners, pkgs, _alpm_pkg_cmp))) {
+ /* dir is owned by files we aren't removing */
+ /* TODO: with better commit ordering, we may be able to check
+ * against upgrades as well */
+ alpm_list_free(diff);
+ } else {
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "checking if all files in %s belong to removed packages\n",
+ dir);
+ resolved_conflict = dir_belongsto_pkgs(handle, dir, owners);
+ }
+ alpm_list_free(pkgs);
+ alpm_list_free(owners);
}
free(dir);
}