core: Add omitted mutable tree files
This commit is contained in:
Colin Walters
parent
72257bab2b
commit
59281d5901
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2011 Colin Walters <walters@verbum.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Colin Walters <walters@verbum.org>
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*/
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#include "config.h"
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#include "ostree-mutable-tree.h"
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struct _OstreeMutableTree
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{
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GObject parent_instance;
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char *metadata_checksum;
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GHashTable *files;
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GHashTable *subdirs;
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};
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G_DEFINE_TYPE (OstreeMutableTree, ostree_mutable_tree, G_TYPE_OBJECT)
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static void
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ostree_mutable_tree_finalize (GObject *object)
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{
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OstreeMutableTree *self;
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self = OSTREE_MUTABLE_TREE (object);
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g_free (self->metadata_checksum);
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g_hash_table_destroy (self->files);
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g_hash_table_destroy (self->subdirs);
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G_OBJECT_CLASS (ostree_mutable_tree_parent_class)->finalize (object);
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}
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static void
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ostree_mutable_tree_class_init (OstreeMutableTreeClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = ostree_mutable_tree_finalize;
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}
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static void
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ostree_mutable_tree_init (OstreeMutableTree *self)
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{
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self->files = g_hash_table_new_full (g_str_hash, g_str_equal,
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g_free, g_free);
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self->subdirs = g_hash_table_new_full (g_str_hash, g_str_equal,
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g_free, (GDestroyNotify)g_object_unref);
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}
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void
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ostree_mutable_tree_set_metadata_checksum (OstreeMutableTree *self,
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const char *checksum)
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{
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g_free (self->metadata_checksum);
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self->metadata_checksum = g_strdup (checksum);
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}
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const char *
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ostree_mutable_tree_get_metadata_checksum (OstreeMutableTree *self)
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{
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return self->metadata_checksum;
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}
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static gboolean
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set_error_noent (GError **error, const char *path)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
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"No such file or directory: %s",
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path);
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return FALSE;
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}
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gboolean
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ostree_mutable_tree_replace_file (OstreeMutableTree *self,
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const char *name,
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const char *checksum,
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GError **error)
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{
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gboolean ret = FALSE;
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if (g_hash_table_lookup (self->subdirs, name))
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Can't replace directory with file: %s", name);
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goto out;
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}
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g_hash_table_replace (self->files,
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g_strdup (name),
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g_strdup (checksum));
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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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gboolean
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ostree_mutable_tree_ensure_dir (OstreeMutableTree *self,
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const char *name,
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OstreeMutableTree **out_subdir,
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GError **error)
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{
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gboolean ret = FALSE;
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OstreeMutableTree *ret_dir = NULL;
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g_return_val_if_fail (name != NULL, FALSE);
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if (g_hash_table_lookup (self->files, name))
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Can't replace file with directory: %s", name);
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goto out;
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}
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ret_dir = ot_gobject_refz (g_hash_table_lookup (self->subdirs, name));
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if (!ret_dir)
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{
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ret_dir = ostree_mutable_tree_new ();
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g_hash_table_insert (self->subdirs, g_strdup (name), g_object_ref (ret_dir));
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}
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ret = TRUE;
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ot_transfer_out_value (out_subdir, &ret_dir);
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out:
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g_clear_object (&ret_dir);
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return ret;
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}
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gboolean
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ostree_mutable_tree_lookup (OstreeMutableTree *self,
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const char *name,
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char **out_file_checksum,
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OstreeMutableTree **out_subdir,
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GError **error)
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{
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gboolean ret = FALSE;
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OstreeMutableTree *ret_subdir = NULL;
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char *ret_file_checksum = NULL;
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ret_subdir = ot_gobject_refz (g_hash_table_lookup (self->subdirs, name));
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if (!ret_subdir)
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{
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ret_file_checksum = g_strdup (g_hash_table_lookup (self->files, name));
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if (!ret_file_checksum)
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{
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set_error_noent (error, name);
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goto out;
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}
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}
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ret = TRUE;
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ot_transfer_out_value (out_file_checksum, &ret_file_checksum);
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ot_transfer_out_value (out_subdir, &ret_subdir);
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out:
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g_free (ret_file_checksum);
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g_clear_object (&ret_subdir);
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return ret;
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}
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gboolean
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ostree_mutable_tree_walk (OstreeMutableTree *self,
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GPtrArray *split_path,
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guint start,
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OstreeMutableTree **out_parent,
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GError **error)
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{
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if (start >= split_path->len)
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{
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return set_error_noent (error, (char*)split_path->pdata[start]);
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}
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else if (start == split_path->len - 1)
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{
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*out_parent = g_object_ref (self);
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return TRUE;
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}
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else
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{
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OstreeMutableTree *subdir;
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subdir = g_hash_table_lookup (self->subdirs, split_path->pdata[start]);
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if (!subdir)
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return set_error_noent (error, (char*)split_path->pdata[start]);
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return ostree_mutable_tree_walk (subdir, split_path, start + 1, out_parent, error);
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}
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}
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GHashTable *
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ostree_mutable_tree_get_subdirs (OstreeMutableTree *self)
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{
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return self->subdirs;
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}
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GHashTable *
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ostree_mutable_tree_get_files (OstreeMutableTree *self)
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{
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return self->files;
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}
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OstreeMutableTree *
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ostree_mutable_tree_new (void)
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{
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return (OstreeMutableTree*)g_object_new (OSTREE_TYPE_MUTABLE_TREE, NULL);
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}
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@ -0,0 +1,86 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2011 Colin Walters <walters@verbum.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Colin Walters <walters@verbum.org>
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*/
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#ifndef _OSTREE_MUTABLE_TREE
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#define _OSTREE_MUTABLE_TREE
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#include "otutil.h"
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G_BEGIN_DECLS
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#define OSTREE_TYPE_MUTABLE_TREE (ostree_mutable_tree_get_type ())
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#define OSTREE_MUTABLE_TREE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), OSTREE_TYPE_MUTABLE_TREE, OstreeMutableTree))
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#define OSTREE_MUTABLE_TREE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), OSTREE_TYPE_MUTABLE_TREE, OstreeMutableTreeClass))
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#define OSTREE_IS_MUTABLE_TREE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), OSTREE_TYPE_MUTABLE_TREE))
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#define OSTREE_IS_MUTABLE_TREE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), OSTREE_TYPE_MUTABLE_TREE))
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#define OSTREE_MUTABLE_TREE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), OSTREE_TYPE_MUTABLE_TREE, OstreeMutableTreeClass))
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typedef struct _OstreeMutableTree OstreeMutableTree;
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typedef struct _OstreeMutableTreeClass OstreeMutableTreeClass;
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typedef struct {
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gboolean in_files;
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GHashTableIter iter;
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} OstreeMutableTreeIter;
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struct _OstreeMutableTreeClass
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{
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GObjectClass parent_class;
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};
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GType ostree_mutable_tree_get_type (void) G_GNUC_CONST;
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OstreeMutableTree *ostree_mutable_tree_new (void);
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void ostree_mutable_tree_set_metadata_checksum (OstreeMutableTree *self,
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const char *checksum);
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const char *ostree_mutable_tree_get_metadata_checksum (OstreeMutableTree *self);
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gboolean ostree_mutable_tree_replace_file (OstreeMutableTree *self,
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const char *name,
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const char *checksum,
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GError **error);
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gboolean ostree_mutable_tree_ensure_dir (OstreeMutableTree *self,
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const char *name,
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OstreeMutableTree **out_subdir,
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GError **error);
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gboolean ostree_mutable_tree_lookup (OstreeMutableTree *self,
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const char *name,
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char **out_file_checksum,
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OstreeMutableTree **out_subdir,
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GError **error);
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gboolean ostree_mutable_tree_walk (OstreeMutableTree *self,
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GPtrArray *split_path,
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guint start,
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OstreeMutableTree **out_subdir,
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GError **error);
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GHashTable * ostree_mutable_tree_get_subdirs (OstreeMutableTree *self);
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GHashTable * ostree_mutable_tree_get_files (OstreeMutableTree *self);
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G_END_DECLS
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#endif
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