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otutil: Add a few more helper functions
To be used by wip/etc-writable branch.
This commit is contained in:
parent
cf31942a69
commit
9ba968a5f4
@ -131,6 +131,35 @@ ot_gfile_get_child_strconcat (GFile *parent,
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return ret;
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}
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GFile *
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ot_gfile_get_child_build_path (GFile *parent,
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const char *first, ...)
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{
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va_list args;
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const char *arg;
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ot_lfree char *path = NULL;
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ot_lptrarray GPtrArray *components = NULL;
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va_start (args, first);
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components = g_ptr_array_new ();
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arg = first;
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while (arg != NULL)
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{
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g_ptr_array_add (components, (char*)arg);
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arg = va_arg (args, const char *);
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}
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va_end (args);
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g_ptr_array_add (components, NULL);
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path = g_build_filenamev ((char**)components->pdata);
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return g_file_resolve_relative_path (parent, path);
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}
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/**
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* ot_gfile_unlink:
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* @path: Path to file
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@ -394,25 +423,12 @@ ot_gio_checksum_stream_finish (GInputStream *in,
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return g_memdup (g_simple_async_result_get_op_res_gpointer (simple), 32);
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}
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/**
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* ot_gio_shutil_cp_al_or_fallback:
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* @src: Source path
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* @dest: Destination path
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* @cancellable:
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* @error:
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*
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* Recursively copy path @src (which must be a directory) to the
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* target @dest. If possible, hardlinks are used; if a hardlink is
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* not possible, a regular copy is created. Any existing files are
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* overwritten.
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*
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* Returns: %TRUE on success
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*/
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gboolean
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ot_gio_shutil_cp_al_or_fallback (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error)
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static gboolean
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cp_internal (GFile *src,
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GFile *dest,
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gboolean use_hardlinks,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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ot_lobj GFileEnumerator *enumerator = NULL;
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@ -453,19 +469,29 @@ ot_gio_shutil_cp_al_or_fallback (GFile *src,
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goto out;
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}
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if (!ot_gio_shutil_cp_al_or_fallback (src_child, dest_child, cancellable, error))
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if (!cp_internal (src_child, dest_child, use_hardlinks, cancellable, error))
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goto out;
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}
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else
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{
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gboolean did_link = FALSE;
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(void) unlink (ot_gfile_get_path_cached (dest_child));
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if (link (ot_gfile_get_path_cached (src_child), ot_gfile_get_path_cached (dest_child)) == -1)
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if (use_hardlinks)
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{
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if (!(errno == EMLINK || errno == EXDEV))
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if (link (ot_gfile_get_path_cached (src_child), ot_gfile_get_path_cached (dest_child)) == -1)
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{
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ot_util_set_error_from_errno (error, errno);
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goto out;
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if (!(errno == EMLINK || errno == EXDEV))
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{
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ot_util_set_error_from_errno (error, errno);
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goto out;
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}
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use_hardlinks = FALSE;
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}
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else
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did_link = TRUE;
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}
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if (!did_link)
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{
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if (!g_file_copy (src_child, dest_child,
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G_FILE_COPY_OVERWRITE | G_FILE_COPY_ALL_METADATA | G_FILE_COPY_NOFOLLOW_SYMLINKS,
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cancellable, NULL, NULL, error))
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@ -485,3 +511,109 @@ ot_gio_shutil_cp_al_or_fallback (GFile *src,
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return ret;
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}
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/**
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* ot_gio_shutil_cp_al_or_fallback:
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* @src: Source path
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* @dest: Destination path
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* @cancellable:
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* @error:
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*
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* Recursively copy path @src (which must be a directory) to the
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* target @dest. If possible, hardlinks are used; if a hardlink is
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* not possible, a regular copy is created. Any existing files are
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* overwritten.
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*
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* Returns: %TRUE on success
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*/
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gboolean
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ot_gio_shutil_cp_al_or_fallback (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error)
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{
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return cp_internal (src, dest, TRUE, cancellable, error);
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}
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/**
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* ot_gio_shutil_cp_a:
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* @src: Source path
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* @dest: Destination path
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* @cancellable:
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* @error:
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*
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* Recursively copy path @src (which must be a directory) to the
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* target @dest. Any existing files are overwritten.
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*
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* Returns: %TRUE on success
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*/
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gboolean
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ot_gio_shutil_cp_a (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error)
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{
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return cp_internal (src, dest, FALSE, cancellable, error);
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}
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gboolean
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ot_gio_shutil_rm_rf (GFile *path,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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ot_lobj GFileEnumerator *dir_enum = NULL;
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ot_lobj GFileInfo *file_info = NULL;
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GError *temp_error = NULL;
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dir_enum = g_file_enumerate_children (path, OSTREE_GIO_FAST_QUERYINFO,
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G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
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cancellable, &temp_error);
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if (!dir_enum)
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{
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if (g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
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{
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g_clear_error (&temp_error);
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ret = TRUE;
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}
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else
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g_propagate_error (error, temp_error);
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goto out;
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}
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while ((file_info = g_file_enumerator_next_file (dir_enum, cancellable, &temp_error)) != NULL)
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{
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ot_lobj GFile *subpath = NULL;
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GFileType type;
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const char *name;
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type = g_file_info_get_attribute_uint32 (file_info, "standard::type");
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name = g_file_info_get_attribute_byte_string (file_info, "standard::name");
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subpath = g_file_get_child (path, name);
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if (type == G_FILE_TYPE_DIRECTORY)
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{
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if (!ot_gio_shutil_rm_rf (subpath, cancellable, error))
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goto out;
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}
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else
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{
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if (!ot_gfile_unlink (subpath, cancellable, error))
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goto out;
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}
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g_clear_object (&file_info);
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}
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if (temp_error)
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{
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g_propagate_error (error, temp_error);
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goto out;
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}
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if (!g_file_delete (path, cancellable, error))
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goto out;
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ret = TRUE;
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out:
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return ret;
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}
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@ -40,6 +40,8 @@ GFile *ot_gfile_from_build_path (const char *first, ...) G_GNUC_NULL_TERMINATED;
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GFile *ot_gfile_get_child_strconcat (GFile *parent, const char *first, ...) G_GNUC_NULL_TERMINATED;
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GFile *ot_gfile_get_child_build_path (GFile *parent, const char *first, ...) G_GNUC_NULL_TERMINATED;
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const char *ot_gfile_get_path_cached (GFile *file);
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const char *ot_gfile_get_basename_cached (GFile *file);
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@ -51,6 +53,11 @@ gboolean ot_gfile_rename (GFile *src,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_gfile_hardlink (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_gfile_unlink (GFile *path,
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GCancellable *cancellable,
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GError **error);
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@ -96,11 +103,19 @@ guchar * ot_gio_checksum_stream_finish (GInputStream *in,
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GAsyncResult *result,
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GError **error);
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gboolean ot_gio_shutil_cp_a (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_gio_shutil_cp_al_or_fallback (GFile *src,
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GFile *dest,
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GCancellable *cancellable,
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GError **error);
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gboolean ot_gio_shutil_rm_rf (GFile *path,
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GCancellable *cancellable,
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GError **error);
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G_END_DECLS
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