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/*
 * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/* 
 * Meta data about a tracked on-disk file.
 *
 * Note that some fields are truncated results from stat(2). These are only
 * used in order to detect modifications made to on-disk files, they are
 * never written back to the filesystem.
 */
struct got_index_entry {
	uint32_t ctime_sec;
	uint32_t ctime_nsec;
	uint32_t mtime_sec;
	uint32_t mtime_nsec;
	uint32_t dev;
	uint32_t ino;
	uint32_t mode;
#define GOT_INDEX_ENTRY_MODE_OBJ_TYPE	0x0000000f
#define GOT_INDEX_ENTRY_MODE_PERMS	0x0000ff10
	uint32_t uid;
	uint32_t gid;
	uint32_t size;
	uint8_t obj_sha1[SHA1_DIGEST_LENGTH];
	uint16_t flags;
#define GOT_INDEX_ENTRY_F_NAME_LEN	0x0fff
#define GOT_INDEX_ENTRY_F_STAGE		0x3000
#define GOT_INDEX_ENTRY_F_EXTENDED	0x4000
#define GOT_INDEX_ENTRY_F_ASSUME_VALID	0x8000
	uint16_t ext_flags; /*  if F_EXTENDED set in version 3 or later */
#define GOT_INDEX_ENTRY_EXT_F_UNUSED		0x1fff
#define GOT_INDEX_ENTRY_EXT_F_INTEND_TO_ADD	0x2000
#define GOT_INDEX_ENTRY_EXT_F_SKIP_WORKTREE	0x4000
#define GOT_INDEX_ENTRY_EXT_F_RESERVED		0x8000

	/* 
	 * This is a unix-style path relative to top level directory.
	 * In version 4 it is prefix-compressed relative to previous entry.
	 */
	const char *path;

	/* In versions < 4, path is NUL-padded to a multple of eight bytes. */
};

struct got_index {
	uint32_t signature;
	uint32_t version;
	uint32_t nentries;
	struct got_index_entry *entries;
	/* extensions go here */
	uint8_t sha1[SHA1_DIGEST_LENGTH];
};
thodg/got/lib/got_index_priv.h

Commit

lib/got_index_priv.h
