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common: Add flatpak_zero_mtime helper 

This recursively sets the mtime to 0.
tingping/wmclass
Alexander Larsson 2016-06-08 11:11:01 +02:00
parent 1bebedea8a
commit cc08083543
2 changed files with 58 additions and 0 deletions
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54
common/flatpak-utils.c
View File

@ -1460,6 +1460,60 @@ out:
return ret;
}
gboolean
flatpak_zero_mtime (int parent_dfd,
const char *rel_path,
GCancellable *cancellable,
GError **error)
{
struct stat stbuf;
if (TEMP_FAILURE_RETRY (fstatat (parent_dfd, rel_path, &stbuf, AT_SYMLINK_NOFOLLOW)) != 0)
{
glnx_set_error_from_errno (error);
return FALSE;
}
if (S_ISDIR (stbuf.st_mode))
{
g_auto(GLnxDirFdIterator) dfd_iter = { 0, };
glnx_dirfd_iterator_init_at (parent_dfd, rel_path, FALSE, &dfd_iter, NULL);
while (TRUE)
{
struct dirent *dent;
if (!glnx_dirfd_iterator_next_dent (&dfd_iter, &dent, NULL, NULL) || dent == NULL)
break;
if (!flatpak_zero_mtime (dfd_iter.fd, dent->d_name,
cancellable, error))
return FALSE;
}
/* Update stbuf */
if (TEMP_FAILURE_RETRY (fstat (dfd_iter.fd, &stbuf)) != 0)
{
glnx_set_error_from_errno (error);
return FALSE;
}
}
if (stbuf.st_mtime != 0)
{
const struct timespec times[2] = { { 0, UTIME_OMIT }, { 0, } };
if (TEMP_FAILURE_RETRY (utimensat (parent_dfd, rel_path, times, AT_SYMLINK_NOFOLLOW)) != 0)
{
glnx_set_error_from_errno (error);
return FALSE;
}
}
return TRUE;
}
gboolean
flatpak_variant_save (GFile *dest,
GVariant *variant,

4
common/flatpak-utils.h
View File

@ -257,6 +257,10 @@ gboolean flatpak_cp_a (GFile *src,
GCancellable *cancellable,
GError **error);
gboolean flatpak_zero_mtime (int parent_dfd,
const char *rel_path,
GCancellable *cancellable,
GError **error);
#define flatpak_autorm_rf _GLIB_CLEANUP (g_autoptr_cleanup_generic_gfree)