/** * 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; }