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/*
 * alpm.h
 *
 *  Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.org>
 *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
 *  Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
 *  Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _ALPM_H
#define _ALPM_H

#ifdef __cplusplus
extern "C" {
#endif

#include <time.h> /* for time_t */
#include <stdarg.h> /* for va_list */

#include <alpm_list.h>

#define DEPRECATED __attribute__((deprecated))

/*
 * Arch Linux Package Management library
 */

/*
 * Structures
 */

typedef struct __pmdb_t pmdb_t;
typedef struct __pmpkg_t pmpkg_t;
typedef struct __pmdelta_t pmdelta_t;
typedef struct __pmgrp_t pmgrp_t;
typedef struct __pmtrans_t pmtrans_t;
typedef struct __pmsyncpkg_t pmsyncpkg_t;
typedef struct __pmdepend_t pmdepend_t;
typedef struct __pmdepmissing_t pmdepmissing_t;
typedef struct __pmconflict_t pmconflict_t;
typedef struct __pmfileconflict_t pmfileconflict_t;

/*
 * Library
 */

int alpm_initialize(void);
int alpm_release(void);
const char *alpm_version(void);

/*
 * Logging facilities
 */

/* Levels */
typedef enum _pmloglevel_t {
  PM_LOG_ERROR    = 0x01,
  PM_LOG_WARNING  = 0x02,
  PM_LOG_DEBUG    = 0x04,
  PM_LOG_FUNCTION = 0x08
} pmloglevel_t;

typedef void (*alpm_cb_log)(pmloglevel_t, char *, va_list);
int alpm_logaction(char *fmt, ...);

/*
 * Downloading
 */

typedef void (*alpm_cb_download)(const char *filename, int xfered, int total);

/*
 * Options
 */

#define PM_DLFNM_LEN 22

alpm_cb_log alpm_option_get_logcb();
void alpm_option_set_logcb(alpm_cb_log cb);

alpm_cb_download alpm_option_get_dlcb();
void alpm_option_set_dlcb(alpm_cb_download cb);

const char *alpm_option_get_root();
int alpm_option_set_root(const char *root);

const char *alpm_option_get_dbpath();
int alpm_option_set_dbpath(const char *dbpath);

alpm_list_t *alpm_option_get_cachedirs();
int alpm_option_add_cachedir(const char *cachedir);
void alpm_option_set_cachedirs(alpm_list_t *cachedirs);
int alpm_option_remove_cachedir(const char *cachedir);

const char *alpm_option_get_logfile();
int alpm_option_set_logfile(const char *logfile);

const char *alpm_option_get_lockfile();
/* no set_lockfile, path is determined from dbpath */

unsigned short alpm_option_get_usesyslog();
void alpm_option_set_usesyslog(unsigned short usesyslog);

alpm_list_t *alpm_option_get_noupgrades();
void alpm_option_add_noupgrade(const char *pkg);
void alpm_option_set_noupgrades(alpm_list_t *noupgrade);
int alpm_option_remove_noupgrade(const char *pkg);

alpm_list_t *alpm_option_get_noextracts();
void alpm_option_add_noextract(const char *pkg);
void alpm_option_set_noextracts(alpm_list_t *noextract);
int alpm_option_remove_noextract(const char *pkg);

alpm_list_t *alpm_option_get_ignorepkgs();
void alpm_option_add_ignorepkg(const char *pkg);
void alpm_option_set_ignorepkgs(alpm_list_t *ignorepkgs);
int alpm_option_remove_ignorepkg(const char *pkg);

alpm_list_t *alpm_option_get_holdpkgs();
void alpm_option_add_holdpkg(const char *pkg);
void alpm_option_set_holdpkgs(alpm_list_t *holdpkgs);
int alpm_option_remove_holdpkg(const char *pkg);

alpm_list_t *alpm_option_get_ignoregrps();
void alpm_option_add_ignoregrp(const char *grp);
void alpm_option_set_ignoregrps(alpm_list_t *ignoregrps);
int alpm_option_remove_ignoregrp(const char *grp);

const char *alpm_option_get_xfercommand();
void alpm_option_set_xfercommand(const char *cmd);

unsigned short alpm_option_get_nopassiveftp();
void alpm_option_set_nopassiveftp(unsigned short nopasv);
void alpm_option_set_usedelta(unsigned short usedelta);

pmdb_t *alpm_option_get_localdb();
alpm_list_t *alpm_option_get_syncdbs();

/*
 * Databases
 */

/* Preferred interfaces db_register_local and db_register_sync */
pmdb_t *alpm_db_register_local(void);
pmdb_t *alpm_db_register_sync(const char *treename);
int alpm_db_unregister(pmdb_t *db);
int alpm_db_unregister_all(void);

const char *alpm_db_get_name(const pmdb_t *db);
const char *alpm_db_get_url(const pmdb_t *db);

int alpm_db_setserver(pmdb_t *db, const char *url);

int alpm_db_update(int level, pmdb_t *db);

pmpkg_t *alpm_db_get_pkg(pmdb_t *db, const char *name);
alpm_list_t *alpm_db_getpkgcache(pmdb_t *db);

pmgrp_t *alpm_db_readgrp(pmdb_t *db, const char *name);
alpm_list_t *alpm_db_getgrpcache(pmdb_t *db);
alpm_list_t *alpm_db_search(pmdb_t *db, const alpm_list_t* needles);

/*
 * Packages
 */

/* Info parameters */

/* reasons -- ie, why the package was installed */
typedef enum _pmpkgreason_t {
  PM_PKG_REASON_EXPLICIT = 0,  /* explicitly requested by the user */
  PM_PKG_REASON_DEPEND = 1  /* installed as a dependency for another package */
} pmpkgreason_t;

int alpm_pkg_load(const char *filename, unsigned short full, pmpkg_t **pkg);
int alpm_pkg_free(pmpkg_t *pkg);
int alpm_pkg_checkmd5sum(pmpkg_t *pkg);
char *alpm_fetch_pkgurl(const char *url);
int alpm_pkg_vercmp(const char *a, const char *b);
alpm_list_t *alpm_pkg_compute_requiredby(pmpkg_t *pkg);

const char *alpm_pkg_get_filename(pmpkg_t *pkg);
const char *alpm_pkg_get_name(pmpkg_t *pkg);
const char *alpm_pkg_get_version(pmpkg_t *pkg);
const char *alpm_pkg_get_desc(pmpkg_t *pkg);
const char *alpm_pkg_get_url(pmpkg_t *pkg);
time_t alpm_pkg_get_builddate(pmpkg_t *pkg);
time_t alpm_pkg_get_installdate(pmpkg_t *pkg);
const char *alpm_pkg_get_packager(pmpkg_t *pkg);
const char *alpm_pkg_get_md5sum(pmpkg_t *pkg);
const char *alpm_pkg_get_arch(pmpkg_t *pkg);
unsigned long alpm_pkg_get_size(pmpkg_t *pkg);
unsigned long alpm_pkg_get_isize(pmpkg_t *pkg);
pmpkgreason_t alpm_pkg_get_reason(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_licenses(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_groups(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_depends(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_optdepends(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_conflicts(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_provides(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_deltas(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_replaces(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_files(pmpkg_t *pkg);
alpm_list_t *alpm_pkg_get_backup(pmpkg_t *pkg);
void *alpm_pkg_changelog_open(pmpkg_t *pkg);
size_t alpm_pkg_changelog_read(void *ptr, size_t size,
    const pmpkg_t *pkg, const void *fp);
/*int alpm_pkg_changelog_feof(const pmpkg_t *pkg, void *fp);*/
int alpm_pkg_changelog_close(const pmpkg_t *pkg, void *fp);
unsigned short alpm_pkg_has_scriptlet(pmpkg_t *pkg);

unsigned long alpm_pkg_download_size(pmpkg_t *newpkg);

/*
 * Deltas
 */

const char *alpm_delta_get_from(pmdelta_t *delta);
const char *alpm_delta_get_from_md5sum(pmdelta_t *delta);
const char *alpm_delta_get_to(pmdelta_t *delta);
const char *alpm_delta_get_to_md5sum(pmdelta_t *delta);
const char *alpm_delta_get_filename(pmdelta_t *delta);
const char *alpm_delta_get_md5sum(pmdelta_t *delta);
unsigned long alpm_delta_get_size(pmdelta_t *delta);

/*
 * Groups
 */
const char *alpm_grp_get_name(const pmgrp_t *grp);
alpm_list_t *alpm_grp_get_pkgs(const pmgrp_t *grp);

/*
 * Sync
 */

pmpkg_t *alpm_sync_get_pkg(const pmsyncpkg_t *sync);
alpm_list_t *alpm_sync_get_removes(const pmsyncpkg_t *sync);
pmpkg_t *alpm_sync_newversion(pmpkg_t *pkg, alpm_list_t *dbs_sync);
int alpm_sync_sysupgrade(pmdb_t *db_local,
    alpm_list_t *dbs_sync, alpm_list_t **syncpkgs);

/*
 * Transactions
 */

/* Types */
typedef enum _pmtranstype_t {
  PM_TRANS_TYPE_UPGRADE = 1,
  PM_TRANS_TYPE_REMOVE,
  PM_TRANS_TYPE_REMOVEUPGRADE,
  PM_TRANS_TYPE_SYNC
} pmtranstype_t;

/* Flags */
typedef enum _pmtransflag_t {
  PM_TRANS_FLAG_NODEPS = 0x01,
  PM_TRANS_FLAG_FORCE = 0x02,
  PM_TRANS_FLAG_NOSAVE = 0x04,
  /* 0x08 flag can go here */
  PM_TRANS_FLAG_CASCADE = 0x10,
  PM_TRANS_FLAG_RECURSE = 0x20,
  PM_TRANS_FLAG_DBONLY = 0x40,
  /* 0x80 flag can go here */
  PM_TRANS_FLAG_ALLDEPS = 0x100,
  PM_TRANS_FLAG_DOWNLOADONLY = 0x200,
  PM_TRANS_FLAG_NOSCRIPTLET = 0x400,
  PM_TRANS_FLAG_NOCONFLICTS = 0x800,
  PM_TRANS_FLAG_PRINTURIS = 0x1000,
  PM_TRANS_FLAG_NEEDED = 0x2000,
  PM_TRANS_FLAG_ALLEXPLICIT = 0x4000,
  PM_TRANS_FLAG_UNNEEDED = 0x8000,
  PM_TRANS_FLAG_RECURSEALL = 0x10000
} pmtransflag_t;

/**
 * @addtogroup alpm_trans
 * @{
 */
/**
 * @brief Transaction events.
 * NULL parameters are passed to in all events unless specified otherwise.
 */
typedef enum _pmtransevt_t {
  /** Dependencies will be computed for a package. */
  PM_TRANS_EVT_CHECKDEPS_START = 1,
  /** Dependencies were computed for a package. */
  PM_TRANS_EVT_CHECKDEPS_DONE,
  /** File conflicts will be computed for a package. */
  PM_TRANS_EVT_FILECONFLICTS_START,
  /** File conflicts were computed for a package. */
  PM_TRANS_EVT_FILECONFLICTS_DONE,
  /** Dependencies will be resolved for target package. */
  PM_TRANS_EVT_RESOLVEDEPS_START,
  /** Dependencies were resolved for target package. */
  PM_TRANS_EVT_RESOLVEDEPS_DONE,
  /** Inter-conflicts will be checked for target package. */
  PM_TRANS_EVT_INTERCONFLICTS_START,
  /** Inter-conflicts were checked for target package. */
  PM_TRANS_EVT_INTERCONFLICTS_DONE,
  /** Package will be installed.
   * A pointer to the target package is passed to the callback.
   */
  PM_TRANS_EVT_ADD_START,
  /** Package was installed.
   * A pointer to the new package is passed to the callback.
   */
  PM_TRANS_EVT_ADD_DONE,
  /** Package will be removed.
   * A pointer to the target package is passed to the callback.
   */
  PM_TRANS_EVT_REMOVE_START,
  /** Package was removed.
   * A pointer to the removed package is passed to the callback.
   */
  PM_TRANS_EVT_REMOVE_DONE,
  /** Package will be upgraded.
   * A pointer to the upgraded package is passed to the callback.
   */
  PM_TRANS_EVT_UPGRADE_START,
  /** Package was upgraded.
   * A pointer to the new package, and a pointer to the old package is passed
   * to the callback, respectively.
   */
  PM_TRANS_EVT_UPGRADE_DONE,
  /** Target package's integrity will be checked. */
  PM_TRANS_EVT_INTEGRITY_START,
  /** Target package's integrity was checked. */
  PM_TRANS_EVT_INTEGRITY_DONE,
  /** Target deltas's integrity will be checked. */
  PM_TRANS_EVT_DELTA_INTEGRITY_START,
  /** Target delta's integrity was checked. */
  PM_TRANS_EVT_DELTA_INTEGRITY_DONE,
  /** Deltas will be applied to packages. */
  PM_TRANS_EVT_DELTA_PATCHES_START,
  /** Deltas were applied to packages. */
  PM_TRANS_EVT_DELTA_PATCHES_DONE,
  /** Delta patch will be applied to target package.
   * The filename of the package and the filename of the patch is passed to the
   * callback.
   */
  PM_TRANS_EVT_DELTA_PATCH_START,
  /** Delta patch was applied to target package. */
  PM_TRANS_EVT_DELTA_PATCH_DONE,
  /** Delta patch failed to apply to target package. */
  PM_TRANS_EVT_DELTA_PATCH_FAILED,
  /** Scriptlet has printed information.
   * A line of text is passed to the callback.
   */
  PM_TRANS_EVT_SCRIPTLET_INFO,
  /** Print URI.
   * The database's URI and the package's filename are passed to the callback.
   */
  PM_TRANS_EVT_PRINTURI,
  /** Files will be downloaded from a repository.
   * The repository's tree name is passed to the callback.
   */
  PM_TRANS_EVT_RETRIEVE_START,
} pmtransevt_t;
/*@}*/

/* Transaction Conversations (ie, questions) */
typedef enum _pmtransconv_t {
  PM_TRANS_CONV_INSTALL_IGNOREPKG = 0x01,
  PM_TRANS_CONV_REPLACE_PKG = 0x02,
  PM_TRANS_CONV_CONFLICT_PKG = 0x04,
  PM_TRANS_CONV_CORRUPTED_PKG = 0x08,
  PM_TRANS_CONV_LOCAL_NEWER = 0x10,
  /* 0x20 flag can go here */
  PM_TRANS_CONV_REMOVE_HOLDPKG = 0x40
} pmtransconv_t;

/* Transaction Progress */
typedef enum _pmtransprog_t {
  PM_TRANS_PROGRESS_ADD_START,
  PM_TRANS_PROGRESS_UPGRADE_START,
  PM_TRANS_PROGRESS_REMOVE_START,
  PM_TRANS_PROGRESS_CONFLICTS_START
} pmtransprog_t;

/* Transaction Event callback */
typedef void (*alpm_trans_cb_event)(pmtransevt_t, void *, void *);

/* Transaction Conversation callback */
typedef void (*alpm_trans_cb_conv)(pmtransconv_t, void *, void *,
                                   void *, int *);

/* Transaction Progress callback */
typedef void (*alpm_trans_cb_progress)(pmtransprog_t, const char *, intintint);

pmtranstype_t alpm_trans_get_type();
unsigned int alpm_trans_get_flags();
alpm_list_t * alpm_trans_get_pkgs();
int alpm_trans_init(pmtranstype_t type, pmtransflag_t flags,
                    alpm_trans_cb_event cb_event, alpm_trans_cb_conv conv,
                    alpm_trans_cb_progress cb_progress);
int alpm_trans_sysupgrade(void);
int alpm_trans_addtarget(char *target);
int alpm_trans_prepare(alpm_list_t **data);
int alpm_trans_commit(alpm_list_t **data);
int alpm_trans_interrupt(void);
int alpm_trans_release(void);

/*
 * Dependencies and conflicts
 */

typedef enum _pmdepmod_t {
  PM_DEP_MOD_ANY = 1,
  PM_DEP_MOD_EQ,
  PM_DEP_MOD_GE,
  PM_DEP_MOD_LE,
  PM_DEP_MOD_GT,
  PM_DEP_MOD_LT
} pmdepmod_t;

int alpm_depcmp(pmpkg_t *pkg, pmdepend_t *dep);
alpm_list_t *alpm_checkdeps(pmdb_t *db, int reversedeps,
    alpm_list_t *remove, alpm_list_t *upgrade);
alpm_list_t *alpm_deptest(pmdb_t *db, alpm_list_t *targets);
alpm_list_t *alpm_find_pkg_satisfiers(alpm_list_t *pkgs, const char *pkgname);

const char *alpm_miss_get_target(const pmdepmissing_t *miss);
pmdepend_t *alpm_miss_get_dep(pmdepmissing_t *miss);
const char *alpm_miss_get_causingpkg(const pmdepmissing_t *miss);

alpm_list_t *alpm_checkdbconflicts(pmdb_t *db_local);

const char *alpm_conflict_get_package1(pmconflict_t *conflict);
const char *alpm_conflict_get_package2(pmconflict_t *conflict);

pmdepmod_t alpm_dep_get_mod(const pmdepend_t *dep);
const char *alpm_dep_get_name(const pmdepend_t *dep);
const char *alpm_dep_get_version(const pmdepend_t *dep);
char *alpm_dep_get_string(const pmdepend_t *dep);

/*
 * File conflicts
 */

typedef enum _pmfileconflicttype_t {
  PM_FILECONFLICT_TARGET = 1,
  PM_FILECONFLICT_FILESYSTEM
} pmfileconflicttype_t;

const char *alpm_fileconflict_get_target(pmfileconflict_t *conflict);
pmfileconflicttype_t alpm_fileconflict_get_type(pmfileconflict_t *conflict);
const char *alpm_fileconflict_get_file(pmfileconflict_t *conflict);
const char *alpm_fileconflict_get_ctarget(pmfileconflict_t *conflict);

/*
 * Helpers
 */

/* checksums */
char *alpm_get_md5sum(const char *name);

/*
 * Errors
 */
enum _pmerrno_t {
  PM_ERR_MEMORY = 1,
  PM_ERR_SYSTEM,
  PM_ERR_BADPERMS,
  PM_ERR_NOT_A_FILE,
  PM_ERR_NOT_A_DIR,
  PM_ERR_WRONG_ARGS,
  /* Interface */
  PM_ERR_HANDLE_NULL,
  PM_ERR_HANDLE_NOT_NULL,
  PM_ERR_HANDLE_LOCK,
  /* Databases */
  PM_ERR_DB_OPEN,
  PM_ERR_DB_CREATE,
  PM_ERR_DB_NULL,
  PM_ERR_DB_NOT_NULL,
  PM_ERR_DB_NOT_FOUND,
  PM_ERR_DB_WRITE,
  PM_ERR_DB_REMOVE,
  /* Servers */
  PM_ERR_SERVER_BAD_URL,
  /* Transactions */
  PM_ERR_TRANS_NOT_NULL,
  PM_ERR_TRANS_NULL,
  PM_ERR_TRANS_DUP_TARGET,
  PM_ERR_TRANS_NOT_INITIALIZED,
  PM_ERR_TRANS_NOT_PREPARED,
  PM_ERR_TRANS_ABORT,
  PM_ERR_TRANS_TYPE,
  PM_ERR_TRANS_COMMITING,
  PM_ERR_TRANS_DOWNLOADING,
  /* Packages */
  PM_ERR_PKG_NOT_FOUND,
  PM_ERR_PKG_INVALID,
  PM_ERR_PKG_OPEN,
  PM_ERR_PKG_LOAD,
  PM_ERR_PKG_CANT_FRESH,
  PM_ERR_PKG_CANT_REMOVE,
  PM_ERR_PKG_INVALID_NAME,
  PM_ERR_PKG_REPO_NOT_FOUND,
  /* Deltas */
  PM_ERR_DLT_INVALID,
  PM_ERR_DLT_PATCHFAILED,
  /* Groups */
  PM_ERR_GRP_NOT_FOUND,
  /* Dependencies */
  PM_ERR_UNSATISFIED_DEPS,
  PM_ERR_CONFLICTING_DEPS,
  PM_ERR_FILE_CONFLICTS,
  /* Misc */
  PM_ERR_USER_ABORT,
  PM_ERR_INTERNAL_ERROR,
  PM_ERR_DB_SYNC,
  PM_ERR_RETRIEVE,
  PM_ERR_PKG_HOLD,
  PM_ERR_INVALID_REGEX,
  /* External library errors */
  PM_ERR_LIBARCHIVE,
  PM_ERR_LIBDOWNLOAD,
  PM_ERR_EXTERNAL_DOWNLOAD
};

extern enum _pmerrno_t pm_errno;

const char *alpm_strerror(int err);
const char *alpm_strerrorlast(void);

#ifdef __cplusplus
}
#endif
#endif /* _ALPM_H */

/* vim: set ts=2 sw=2 noet: */