/**
* ot_gio_shutil_cp_a:
* @src: Source path
* @dest: Destination path
* @cancellable:
* @error:
*
* Recursively copy path @src (which must be a directory) to the
* target @dest. Any existing files are overwritten.
*
* Returns: %TRUE on success
*/
gboolean
ot_gio_shutil_cp_a (GFile *src,
GFile *dest,
GCancellable *cancellable,
GError **error)
{
return cp_internal (src, dest, FALSE, cancellable, error);
}
/**
* ot_gio_shutil_cp_al_or_fallback:
* @src: Source path
* @dest: Destination path
* @cancellable:
* @error:
*
* Recursively copy path @src (which must be a directory) to the
* target @dest. If possible, hardlinks are used; if a hardlink is
* not possible, a regular copy is created. Any existing files are
* overwritten.
*
* Returns: %TRUE on success
*/
gboolean
ot_gio_shutil_cp_al_or_fallback (GFile *src,
GFile *dest,
GCancellable *cancellable,
GError **error)
{
return cp_internal (src, dest, TRUE, cancellable, error);
}
/**
* gs_shutil_cp_a:
* @src: Source path
* @dest: Destination path
* @cancellable:
* @error:
*
* Recursively copy path @src (which must be a directory) to the
* target @dest. Any existing files are overwritten.
*
* Returns: %TRUE on success
*/
gboolean
gs_shutil_cp_a (GFile *src,
GFile *dest,
GCancellable *cancellable,
GError **error)
{
return cp_internal (src, dest, GS_CP_MODE_COPY_ALL,
cancellable, error);
}
/**
* gs_shutil_cp_al_or_fallback:
* @src: Source path
* @dest: Destination path
* @cancellable:
* @error:
*
* Recursively copy path @src (which must be a directory) to the
* target @dest. If possible, hardlinks are used; if a hardlink is
* not possible, a regular copy is created. Any existing files are
* overwritten.
*
* Returns: %TRUE on success
*/
gboolean
gs_shutil_cp_al_or_fallback (GFile *src,
GFile *dest,
GCancellable *cancellable,
GError **error)
{
return cp_internal (src, dest, GS_CP_MODE_HARDLINK,
cancellable, error);
}
static gboolean
cp_internal (GFile *src,
GFile *dest,
gboolean use_hardlinks,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
ot_lobj GFileEnumerator *enumerator = NULL;
ot_lobj GFileInfo *file_info = NULL;
GError *temp_error = NULL;
enumerator = g_file_enumerate_children (src, OSTREE_GIO_FAST_QUERYINFO,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable, error);
if (!enumerator)
goto out;
if (!ot_gfile_ensure_directory (dest, FALSE, error))
goto out;
while ((file_info = g_file_enumerator_next_file (enumerator, cancellable, &temp_error)) != NULL)
{
const char *name = g_file_info_get_name (file_info);
ot_lobj GFile *src_child = g_file_get_child (src, name);
ot_lobj GFile *dest_child = g_file_get_child (dest, name);
if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_DIRECTORY)
{
if (!ot_gfile_ensure_directory (dest_child, FALSE, error))
goto out;
/* Can't do this even though we'd like to; it fails with an error about
* setting standard::type not being supported =/
*
if (!g_file_set_attributes_from_info (dest_child, file_info, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable, error))
goto out;
*/
if (chmod (ot_gfile_get_path_cached (dest_child),
g_file_info_get_attribute_uint32 (file_info, "unix::mode")) == -1)
{
ot_util_set_error_from_errno (error, errno);
goto out;
}
if (!cp_internal (src_child, dest_child, use_hardlinks, cancellable, error))
goto out;
}
else
{
gboolean did_link = FALSE;
(void) unlink (ot_gfile_get_path_cached (dest_child));
if (use_hardlinks)
{
if (link (ot_gfile_get_path_cached (src_child), ot_gfile_get_path_cached (dest_child)) == -1)
{
if (!(errno == EMLINK || errno == EXDEV))
{
ot_util_set_error_from_errno (error, errno);
goto out;
}
use_hardlinks = FALSE;
}
else
did_link = TRUE;
}
if (!did_link)
{
if (!g_file_copy (src_child, dest_child,
G_FILE_COPY_OVERWRITE | G_FILE_COPY_ALL_METADATA | G_FILE_COPY_NOFOLLOW_SYMLINKS,
cancellable, NULL, NULL, error))
goto out;
}
}
g_clear_object (&file_info);
}
if (temp_error)
{
g_propagate_error (error, temp_error);
goto out;
}
ret = TRUE;
out:
return ret;
}
static gboolean
cp_internal (GFile *src,
GFile *dest,
GsCpMode mode,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
GFileEnumerator *enumerator = NULL;
GFileInfo *src_info = NULL;
GFile *dest_child = NULL;
int dest_dfd = -1;
int r;
enumerator = g_file_enumerate_children (src, "standard::type,standard::name,unix::uid,unix::gid,unix::mode",
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable, error);
if (!enumerator)
goto out;
src_info = g_file_query_info (src, "standard::name,unix::mode,unix::uid,unix::gid," \
"time::modified,time::modified-usec,time::access,time::access-usec",
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable, error);
if (!src_info)
goto out;
do
r = mkdir (gs_file_get_path_cached (dest), 0755);
while (G_UNLIKELY (r == -1 && errno == EINTR));
if (r == -1)
{
gs_set_error_from_errno (error, errno);
goto out;
}
if (mode != GS_CP_MODE_NONE)
{
if (!gs_file_open_dir_fd (dest, &dest_dfd,
cancellable, error))
goto out;
do
r = fchown (dest_dfd,
g_file_info_get_attribute_uint32 (src_info, "unix::uid"),
g_file_info_get_attribute_uint32 (src_info, "unix::gid"));
while (G_UNLIKELY (r == -1 && errno == EINTR));
if (r == -1)
{
gs_set_error_from_errno (error, errno);
goto out;
}
do
r = fchmod (dest_dfd, g_file_info_get_attribute_uint32 (src_info, "unix::mode"));
while (G_UNLIKELY (r == -1 && errno == EINTR));
{
GError *temp_error = NULL;
if (!copy_xattrs_from_file_to_fd (src, dest_dfd, cancellable, &temp_error))
{
if (g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_PERMISSION_DENIED) ||
g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
{
g_clear_error (&temp_error);
}
else
{
g_propagate_error (error, temp_error);
goto out;
}
}
}
if (dest_dfd != -1)
{
(void) close (dest_dfd);
dest_dfd = -1;
}
}
while (TRUE)
{
GFileInfo *file_info = NULL;
GFile *src_child = NULL;
if (!gs_file_enumerator_iterate (enumerator, &file_info, &src_child,
cancellable, error))
goto out;
if (!file_info)
break;
if (dest_child) g_object_unref (dest_child);
dest_child = g_file_get_child (dest, g_file_info_get_name (file_info));
if (g_file_info_get_file_type (file_info) == G_FILE_TYPE_DIRECTORY)
{
if (!cp_internal (src_child, dest_child, mode,
cancellable, error))
goto out;
}
else
{
gboolean did_link = FALSE;
(void) unlink (gs_file_get_path_cached (dest_child));
if (mode == GS_CP_MODE_HARDLINK)
{
if (link (gs_file_get_path_cached (src_child), gs_file_get_path_cached (dest_child)) == -1)
{
if (!(errno == EMLINK || errno == EXDEV || errno == EPERM))
{
gs_set_error_from_errno (error, errno);
goto out;
}
/* We failed to hardlink; fall back to copying all; this will
* affect subsequent directory copies too.
*/
mode = GS_CP_MODE_COPY_ALL;
}
else
did_link = TRUE;
}
if (!did_link)
{
GFileCopyFlags copyflags = G_FILE_COPY_OVERWRITE | G_FILE_COPY_NOFOLLOW_SYMLINKS;
if (mode == GS_CP_MODE_COPY_ALL)
copyflags |= G_FILE_COPY_ALL_METADATA;
if (!g_file_copy (src_child, dest_child, copyflags,
cancellable, NULL, NULL, error))
goto out;
}
}
}
ret = TRUE;
out:
if (dest_dfd != -1)
(void) close (dest_dfd);
g_clear_object (&src_info);
g_clear_object (&enumerator);
g_clear_object (&dest_child);
return ret;
}
