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authorAndrew Gregory <andrew.gregory.8@gmail.com>2015-12-04 14:14:32 -0500
committerAllan McRae <allan@archlinux.org>2015-12-05 17:46:22 +1000
commit4838d250e5fc258bdd52dc31098ed2ad0e44ee40 (patch)
tree3542dbadea732d9b2e0d29b8aac1102b70c91b3e /lib
parentbb5e6c3b767e923fdb6cbdd75a930838c9b2a018 (diff)
downloadpacman-4838d250e5fc258bdd52dc31098ed2ad0e44ee40.tar.xz
skip conflicts resolved by file replacement
When replacing a file with a directory, any files inside the new directory cannot possibly exist on the filesystem and can be skipped. This allows cross-package symlink-to-directory transitions when there are files with the same name under both the symlinked directory and the new directory. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/libalpm/conflict.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index 41b8393c..a70023b1 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -566,6 +566,8 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
/* localp2->files will be removed (target conflicts are handled by CHECK 1) */
if(localp2 && alpm_filelist_contains(alpm_pkg_get_files(localp2), relative_path)) {
+ size_t fslen = strlen(filestr);
+
/* 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 (whether the file is in backup array or not */
@@ -574,6 +576,19 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
_alpm_log(handle, ALPM_LOG_DEBUG,
"file changed packages, adding to remove skiplist\n");
resolved_conflict = 1;
+
+ if(filestr[fslen - 1] == '/') {
+ /* replacing a file with a directory:
+ * go ahead and skip any files inside filestr as they will
+ * necessarily be resolved by replacing the file with a dir
+ * NOTE: afterward, j will point to the last file inside filestr */
+ for( ; j->next; j = j->next) {
+ const char *filestr2 = j->next->data;
+ if(strncmp(filestr, filestr2, fslen) != 0) {
+ break;
+ }
+ }
+ }
}
}