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Diffstat (limited to 'lib/libalpm/conflict.c')
-rw-r--r--lib/libalpm/conflict.c38
1 files changed, 30 insertions, 8 deletions
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index 80490233..3ab4ee71 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -366,14 +366,14 @@ static alpm_list_t *add_fileconflict(alpm_list_t *conflicts,
return(conflicts);
}
+/* Find file conflicts that may occur during the transaction with two checks:
+ * 1: check every target against every target
+ * 2: check every target against the filesystem */
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;
- alpm_list_t *tmpfiles = NULL;
+ alpm_list_t *i, *conflicts = NULL;
alpm_list_t *targets = trans->packages;
int numtargs = alpm_list_count(targets);
- double percent;
ALPM_LOG_FUNC;
@@ -382,17 +382,16 @@ alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root)
}
for(i = targets; i; i = i->next) {
+ alpm_list_t *j, *k, *tmpfiles = NULL;
pmpkg_t *p1, *p2, *dbpkg;
- char *filestr = NULL;
char path[PATH_MAX+1];
- struct stat buf;
p1 = i->data;
if(!p1) {
continue;
}
- percent = (double)(alpm_list_count(targets) - alpm_list_count(i) + 1)
+ double percent = (double)(alpm_list_count(targets) - alpm_list_count(i) + 1)
/ alpm_list_count(targets);
PROGRESS(trans, PM_TRANS_PROGRESS_CONFLICTS_START, "", (percent * 100),
numtargs, (numtargs - alpm_list_count(i) +1));
@@ -407,7 +406,6 @@ alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root)
tmpfiles = chk_fileconflicts(alpm_pkg_get_files(p1), alpm_pkg_get_files(p2));
if(tmpfiles) {
- char path[PATH_MAX];
for(k = tmpfiles; k; k = k->next) {
snprintf(path, PATH_MAX, "%s%s", root, (char *)k->data);
conflicts = add_fileconflict(conflicts, PM_CONFLICT_TYPE_TARGET, path,
@@ -418,6 +416,10 @@ alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root)
}
}
+ /* declarations for second check */
+ struct stat buf;
+ char *filestr = NULL;
+
/* CHECK 2: check every target against the filesystem */
_alpm_log(PM_LOG_DEBUG, "searching for filesystem conflicts: %s", p1->name);
dbpkg = _alpm_db_get_pkgfromcache(db, p1->name);
@@ -443,6 +445,26 @@ alpm_list_t *_alpm_db_find_conflicts(pmdb_t *db, pmtrans_t *trans, char *root)
if(lstat(path, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
_alpm_log(PM_LOG_DEBUG, "checking possible conflict: %s", path);
+ /* Make sure the possible conflict is not a symlink that points to a
+ * path in the old package. This is kind of dirty with inode usage */
+ if(dbpkg) {
+ struct stat buf2;
+ char str[PATH_MAX+1];
+ unsigned ok = 0;
+ for(k = dbpkg->files; k; k = k->next) {
+ snprintf(str, PATH_MAX, "%s%s", root, (char*)k->data);
+ lstat(str, &buf2);
+ if(buf.st_ino == buf2.st_ino) {
+ ok = 1;
+ _alpm_log(PM_LOG_DEBUG, "conflict was a symlink: %s", path);
+ break;
+ }
+ }
+ if(ok == 1) {
+ continue;
+ }
+ }
+
/* Look at all the targets to see if file has changed hands */
int resolved_conflict = 0; /* have we acted on this conflict? */
for(k = targets; k; k = k->next) {