/*-
 * Copyright 2010. Ivan Voras <ivoras@freebsd.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 */
/*
 * FreeBSD install - a package for the installation and maintainance
 * of non-core utilities.
 *
 * This module contains common definitions across pkg_patch.
 */

#ifndef _PKG_PATCH_H_
#define _PKG_PATCH_H_

#ifndef _PATH_TAR
#define _PATH_TAR 	"/usr/bin/tar"
#endif
#ifndef _PATH_BSDIFF
#define _PATH_BSDIFF 	"/usr/bin/bsdiff"
#endif
#ifndef _PATH_BSPATCH
#define _PATH_BSPATCH	"/usr/bin/bspatch"
#endif
#ifndef _PATH_GZIP
#define	_PATH_GZIP	"/usr/bin/gzip"
#endif
#ifndef _PATH_BZIP2
#define	_PATH_BZIP2	"/usr/bin/bzip2"
#endif
#ifndef _PATH_PKG_CREATE
#define _PATH_PKG_CREATE	"/usr/sbin/pkg_create"
#endif
#ifndef _PATH_PKG_DELETE
#define _PATH_PKG_DELETE	"/usr/sbin/pkg_delete"
#endif
#ifndef	_PATH_PKG_ADD
#define	_PATH_PKG_ADD		"/usr/sbin/pkg_add"
#endif

#ifndef PKG_FORMAT_EXT
#define PKG_FORMAT_EXT	"tbz"
#endif
#ifndef BSDIFF_EXT
#define BSDIFF_EXT	"bsdiff"
#endif

#ifndef PKGNAME_MAX
#define	PKGNAME_MAX	200
#endif

#define PKGPATCH_FNAME		"+PKGPATCH"
#define PKGPATCH_VERSION_MAJOR	1
#define PKGPATCH_VERSION_MINOR	0

#define PKGPATCHINDEX_FNAME	"PKGPATCHINDEX"

#define PKGPATCH_SITE_URL	"http://people.freebsd.org/~ivoras/pkgpatch"

#define	PKGPATCH_BACKUP_DIR_ENV		"PKG_BACKUPDIR"
#define PKGPATCH_BACKUP_DIR_DEFAULT	"/var/backups/pkg"
#define PKGPATCH_BACKUP_DIR		(getenv(PKGPATCH_BACKUP_DIR_ENV) ? \
    getenv(PKGPATCH_BACKUP_DIR_ENV) : PKGPATCH_BACKUP_DIR_DEFAULT) 

#define PREFIX_ENV	"PREFIX"
#define PREFIX_DEFAULT	"/usr/local"
#define PREFIX		(getenv(PREFIX_ENV) ? getenv(PREFIX_ENV) : PREFIX_DEFAULT)

enum PP_OP { PP_NONE, PP_MKPATCH, PP_APPLY, PP_MKPATCHDIR, PP_UPDATEWEB };

enum CMP_NAME { CMP_FULL_MATCH, CMP_BASE_MATCH, CMP_NO_MATCH, CMP_ERROR };

struct pkgxjob {
	char 	*filename;
	FILE 	*fp;
};

SLIST_HEAD(filelist_head, filelist);
struct filelist {
	char 		filename[PATH_MAX];
	struct stat 	st;
	SLIST_ENTRY(filelist) 	linkage;
};

SLIST_HEAD(pathlist_head, pathlist);
struct pathlist {
	char		path[PATH_MAX];
	SLIST_ENTRY(pathlist)	linkage;
};

SLIST_HEAD(pkgjoinlist_head, pkgjoinlist);
struct pkgjoinlist {
	char		name1[PKGNAME_MAX];
	char		name2[PKGNAME_MAX];
	SLIST_ENTRY(pkgjoinlist)	linkage;
};

enum PPMETHOD { PPMETHOD_UNKNOWN, PPMETHOD_CP, PPMETHOD_BSDIFF, PPMETHOD_LN };

STAILQ_HEAD(pplist_head, pplist);
struct pplist {
	char 			filename[PATH_MAX];
	enum PPMETHOD		method;
	STAILQ_ENTRY(pplist)	linkage;
};

struct pkg_patch {
	short int		version_major;
	short int		version_minor;
	char			source[PATH_MAX];
	char			target[PATH_MAX];
	struct pplist_head	pp_add;
	struct pplist_head	pp_remove;
	struct pplist_head	pp_rmdir;
	struct pplist_head	pp_patch;
};


#ifndef PKG_PATCH_MAIN

extern int argc;
extern char **argv;
extern enum PP_OP patch_op;
extern char *my_tmp;
extern int flag_bsdiff;
extern char *pkg_repo_url;

#endif

int strendswith(const char *bigstr, const char *end);
int rm_rf(char *dir);
int cp(char *from, char *to);
int pkgxjob_start(struct pkgxjob *job, char *dir, char *filename);
int pkgxjob_finish(struct pkgxjob *job);
int filelist_gather(char *dir, struct filelist_head *head);
int filelist_diff(struct filelist_head *fl1, struct filelist_head *fl2,
    struct filelist_head *diff);
int filelist_intersect(struct filelist_head *fl1, struct filelist_head *fl2,
    struct filelist_head *flisect);
int filelist_intersect_pkg(struct filelist_head *fl1, struct filelist_head *f2,
    struct pkgjoinlist_head *jlist);
unsigned int filelist_count(struct filelist_head *flist);
void filelist_free(struct filelist_head *flist);
void pkgjoinlist_free(struct pkgjoinlist_head *plist);
void parse_package_name(char *pkgfile, char *basename, char *version,
    char *suffix);
int copy_file_absolute(char *from, char *to);
int copy_file_attrs(char *from, struct stat *st_from, char *to);
int replicate_dirtree(char *from, char *to);
void read_pkgpatch_file(char *filename, struct pkg_patch *pp);
unsigned int pplist_count(struct pplist_head *ppl);
char *time_to_iso8601(time_t t);
time_t iso8601_to_time(char *t);
char *time_ctime(time_t t);
void baton_twirl(void);
Package *pkg_read_plist(char *pfilename);
int check_conflicts(Package *pnew, char **pkglist);
enum CMP_NAME compare_package_names(char *pkg1, char *pkg2);
enum CMP_NAME check_dependencies(Package *pnew, char **pkglist);
char *find_filename(char *fullname);


#endif