Colin Walters
2d6374822b
This has a very basic level of functionality (deltas can be generated, and applied offline). There is only some stubbed out pull code to fetch them via HTTP. But, better to commit this now and improve it from a known starting point, rather than have it languish in a branch.
119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2013 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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#pragma once
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#include "ostree-core.h"
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G_BEGIN_DECLS
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/* This file contains private implementation data format definitions
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* read by multiple implementation .c files.
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*/
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/*
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* File objects are stored as a stream, with one #GVariant header,
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* followed by content.
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*
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* The file header is of the following form:
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*
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* <BE guint32 containing variant length>
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* u - uid
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* u - gid
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* u - mode
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* u - rdev
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* s - symlink target
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* a(ayay) - xattrs
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*
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* Then the rest of the stream is data.
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*/
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#define _OSTREE_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(uuuusa(ayay))")
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/*
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* A variation on %OSTREE_FILE_HEADER_GVARIANT_FORMAT, used for
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* storing zlib-compressed content objects.
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*
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* <BE guint32 containing variant length>
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* t - size
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* u - uid
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* u - gid
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* u - mode
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* u - rdev
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* s - symlink target
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* a(ayay) - xattrs
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* ---
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* zlib-compressed data
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*/
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#define _OSTREE_ZLIB_FILE_HEADER_GVARIANT_FORMAT G_VARIANT_TYPE ("(tuuuusa(ayay))")
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GVariant *_ostree_zlib_file_header_new (GFileInfo *file_info,
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GVariant *xattrs);
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gboolean _ostree_write_variant_with_size (GOutputStream *output,
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GVariant *variant,
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guint64 alignment_offset,
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gsize *out_bytes_written,
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GChecksum *checksum,
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GCancellable *cancellable,
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GError **error);
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gboolean
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_ostree_make_temporary_symlink_at (int tmp_dirfd,
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const char *target,
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char **out_name,
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GCancellable *cancellable,
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GError **error);
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/* XX + / + checksum-2 + . + extension, but let's just use 256 for a
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* bit of overkill.
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*/
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#define _OSTREE_LOOSE_PATH_MAX (256)
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char *
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_ostree_get_relative_object_path (const char *checksum,
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OstreeObjectType type,
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gboolean compressed);
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char *
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_ostree_get_relative_static_delta_path (const char *from,
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const char *to);
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char *
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_ostree_get_relative_static_delta_part_path (const char *from,
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const char *to,
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guint i);
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void
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_ostree_loose_path (char *buf,
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const char *checksum,
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OstreeObjectType objtype,
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OstreeRepoMode repo_mode);
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void
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_ostree_loose_path_with_suffix (char *buf,
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const char *checksum,
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OstreeObjectType objtype,
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OstreeRepoMode repo_mode,
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const char *suffix);
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G_END_DECLS
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