When checking if a package owns a directory, it is important to check
not only that all the files in the directory are part of the package,
but also if the directory is part of a package.  This catches empty
subdirectories during conflict checking for directory to file/symlink
replacements.

Signed-off-by: Allan McRae <[email protected]>
---

Noticed in the /lib -> usr/lib change in Arch Linux.  pacman would
confirm not files in the /lib directory were unowned by glibc but
missed checking empty directories.  As these are not removed by pacman,
this generated conflicts during extraction.

Another maint candidate.

 lib/libalpm/conflict.c               |  5 +++++
 test/pacman/tests/fileconflict012.py | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 test/pacman/tests/fileconflict012.py

diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index b52c50a..bea23df 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -341,6 +341,11 @@ static int dir_belongsto_pkg(alpm_handle_t *handle, const 
char *dirpath,
        struct dirent *ent = NULL;
        DIR *dir;
 
+       /* check directory is actually in package - used for subdirectory 
checks */
+       if(!_alpm_filelist_contains(alpm_pkg_get_files(pkg), dirpath)) {
+               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
diff --git a/test/pacman/tests/fileconflict012.py 
b/test/pacman/tests/fileconflict012.py
new file mode 100644
index 0000000..261a45e
--- /dev/null
+++ b/test/pacman/tests/fileconflict012.py
@@ -0,0 +1,18 @@
+self.description = "dir->file change during package upgrade (filesystem file 
conflict)"
+
+lp1 = pmpkg("pkg1")
+lp1.files = ["dir/"]
+self.addpkg2db("local", lp1)
+
+self.filesystem = ["dir/file"]
+
+p = pmpkg("pkg1", "1.0-2")
+p.files = ["dir"]
+self.addpkg2db("sync", p)
+
+self.args = "-S pkg1"
+
+self.addrule("PACMAN_RETCODE=1")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_VERSION=pkg1|1.0-1")
+self.addrule("DIR_EXIST=dir/")
-- 
1.7.11.1


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