summaryrefslogtreecommitdiffstats
path: root/lib/libalpm/alpm.h
blob: 39f987ddb9bb679338d6f4886ef59954d44c4cbf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
/*
 * alpm.h
 *
 *  Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
 *  Copyright (c) 2002-2006 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 <sys/types.h> /* for off_t */
#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 __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    = 1,
	PM_LOG_WARNING  = (1 << 1),
	PM_LOG_DEBUG    = (1 << 2),
	PM_LOG_FUNCTION = (1 << 3)
} pmloglevel_t;

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

/*
 * Downloading
 */

typedef void (*alpm_cb_download)(const char *filename,
		off_t xfered, off_t total);
typedef void (*alpm_cb_totaldl)(off_t total);
/** A callback for downloading files
 * @param url the URL of the file to be downloaded
 * @param localpath the directory to which the file should be downloaded
 * @param force whether to force an update, even if the file is the same
 * @return 0 on success, 1 if the file exists and is identical, -1 on
 * error.
 */
typedef int (*alpm_cb_fetch)(const char *url, const char *localpath,
		int force);

/*
 * Options
 */

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

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

alpm_cb_fetch alpm_option_get_fetchcb(void);
void alpm_option_set_fetchcb(alpm_cb_fetch cb);

alpm_cb_totaldl alpm_option_get_totaldlcb(void);
void alpm_option_set_totaldlcb(alpm_cb_totaldl cb);

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

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

alpm_list_t *alpm_option_get_cachedirs(void);
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(void);
int alpm_option_set_logfile(const char *logfile);

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

int alpm_option_get_usesyslog(void);
void alpm_option_set_usesyslog(int usesyslog);

alpm_list_t *alpm_option_get_noupgrades(void);
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);
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);
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_ignoregrps(void);
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_arch(void);
void alpm_option_set_arch(const char *arch);

int alpm_option_get_usedelta(void);
void alpm_option_set_usedelta(int usedelta);

int alpm_option_get_checkspace(void);
void alpm_option_set_checkspace(int checkspace);

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

/*
 * Install 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;

/*
 * Databases
 */

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_get_pkgcache(pmdb_t *db);

pmgrp_t *alpm_db_readgrp(pmdb_t *db, const char *name);
alpm_list_t *alpm_db_get_grpcache(pmdb_t *db);
alpm_list_t *alpm_db_search(pmdb_t *db, const alpm_list_t* needles);
int alpm_db_set_pkgreason(pmdb_t *db, const char *name, pmpkgreason_t reason);

/*
 * Packages
 */

/* Info parameters */

int alpm_pkg_load(const char *filename, int 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);

/** @name Package Property Accessors
 * Any pointer returned by these functions points to internal structures
 * allocated by libalpm. They should not be freed nor modified in any
 * way.
 * @{
 */

/** Gets the name of the file from which the package was loaded.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_filename(pmpkg_t *pkg);

/** Returns the package name.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_name(pmpkg_t *pkg);

/** Returns the package version as a string.
 * This includes all available epoch, version, and pkgrel components. Use
 * alpm_pkg_vercmp() to compare version strings if necessary.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_version(pmpkg_t *pkg);

/** Returns the package description.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_desc(pmpkg_t *pkg);

/** Returns the package URL.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_url(pmpkg_t *pkg);

/** Returns the build timestamp of the package.
 * @param pkg a pointer to package
 * @return the timestamp of the build time
 */
time_t alpm_pkg_get_builddate(pmpkg_t *pkg);

/** Returns the install timestamp of the package.
 * @param pkg a pointer to package
 * @return the timestamp of the install time
 */
time_t alpm_pkg_get_installdate(pmpkg_t *pkg);

/** Returns the packager's name.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_packager(pmpkg_t *pkg);

/** Returns the package's MD5 checksum as a string.
 * The returned string is a sequence of lowercase hexadecimal digits.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_md5sum(pmpkg_t *pkg);

/** Returns the architecture for which the package was built.
 * @param pkg a pointer to package
 * @return a reference to an internal string
 */
const char *alpm_pkg_get_arch(pmpkg_t *pkg);

/** Returns the size of the package.
 * @param pkg a pointer to package
 * @return the size of the package in bytes.
 */
off_t alpm_pkg_get_size(pmpkg_t *pkg);

/** Returns the installed size of the package.
 * @param pkg a pointer to package
 * @return the total size of files installed by the package.
 */
off_t alpm_pkg_get_isize(pmpkg_t *pkg);

/** Returns the package installation reason.
 * @param pkg a pointer to package
 * @return an enum member giving the install reason.
 */
pmpkgreason_t alpm_pkg_get_reason(pmpkg_t *pkg);

/** Returns the list of package licenses.
 * @param pkg a pointer to package
 * @return a pointer to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_licenses(pmpkg_t *pkg);

/** Returns the list of package groups.
 * @param pkg a pointer to package
 * @return a pointer to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_groups(pmpkg_t *pkg);

/** Returns the list of package dependencies as pmdepend_t.
 * @param pkg a pointer to package
 * @return a reference to an internal list of pmdepend_t structures.
 */
alpm_list_t *alpm_pkg_get_depends(pmpkg_t *pkg);

/** Returns the list of package optional dependencies.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_optdepends(pmpkg_t *pkg);

/** Returns the list of package names conflicting with pkg.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_conflicts(pmpkg_t *pkg);

/** Returns the list of package names provided by pkg.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_provides(pmpkg_t *pkg);

alpm_list_t *alpm_pkg_get_deltas(pmpkg_t *pkg);

/** Returns the list of packages to be replaced by pkg.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_replaces(pmpkg_t *pkg);

/** Returns the list of files installed by pkg.
 * The filenames are relative to the install root,
 * and do not include leading slashes.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_files(pmpkg_t *pkg);

/** Returns the list of files backed up when installing pkg.
 * The elements of the returned list have the form
 * "<filename>\t<md5sum>", where the given md5sum is that of
 * the file as provided by the package.
 * @param pkg a pointer to package
 * @return a reference to an internal list of strings.
 */
alpm_list_t *alpm_pkg_get_backup(pmpkg_t *pkg);

/** Returns the database containing pkg
 * Returns a pointer to the pmdb_t structure the package is
 * originating from, or NULL is the package was loaded from a file.
 * @param pkg a pointer to package
 * @return a pointer to the DB containing pkg, or NULL.
 */
pmdb_t *alpm_pkg_get_db(pmpkg_t *pkg);

/* End of pmpkg_t accessors */
/* @} */

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);
int alpm_pkg_has_scriptlet(pmpkg_t *pkg);

off_t alpm_pkg_download_size(pmpkg_t *newpkg);
alpm_list_t *alpm_pkg_unused_deltas(pmpkg_t *pkg);

/*
 * Deltas
 */

const char *alpm_delta_get_from(pmdelta_t *delta);
const char *alpm_delta_get_to(pmdelta_t *delta);
const char *alpm_delta_get_filename(pmdelta_t *delta);
const char *alpm_delta_get_md5sum(pmdelta_t *delta);
off_t 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);
alpm_list_t *alpm_find_grp_pkgs(alpm_list_t *dbs, const char *name);

/*
 * Sync
 */

pmpkg_t *alpm_sync_newversion(pmpkg_t *pkg, alpm_list_t *dbs_sync);

/**
 * @addtogroup alpm_api_trans Transaction Functions
 * Functions to manipulate libalpm transactions
 * @{
 */

/** Transaction flags */
typedef enum _pmtransflag_t {
	PM_TRANS_FLAG_NODEPS = 1,
	PM_TRANS_FLAG_FORCE = (1 << 1),
	PM_TRANS_FLAG_NOSAVE = (1 << 2),
	PM_TRANS_FLAG_NODEPVERSION = (1 << 3),
	PM_TRANS_FLAG_CASCADE = (1 << 4),
	PM_TRANS_FLAG_RECURSE = (1 << 5),
	PM_TRANS_FLAG_DBONLY = (1 << 6),
	/* (1 << 7) flag can go here */
	PM_TRANS_FLAG_ALLDEPS = (1 << 8),
	PM_TRANS_FLAG_DOWNLOADONLY = (1 << 9),
	PM_TRANS_FLAG_NOSCRIPTLET = (1 << 10),
	PM_TRANS_FLAG_NOCONFLICTS = (1 << 11),
	/* (1 << 12) flag can go here */
	PM_TRANS_FLAG_NEEDED = (1 << 13),
	PM_TRANS_FLAG_ALLEXPLICIT = (1 << 14),
	PM_TRANS_FLAG_UNNEEDED = (1 << 15),
	PM_TRANS_FLAG_RECURSEALL = (1 << 16),
	PM_TRANS_FLAG_NOLOCK = (1 << 17)
} pmtransflag_t;

/** 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,
	/** Files will be downloaded from a repository.
	 * The repository's tree name is passed to the callback.
	 */
	PM_TRANS_EVT_RETRIEVE_START,
	/** Disk space usage will be computed for a package */
	PM_TRANS_EVT_DISKSPACE_START,
	/** Disk space usage was computed for a package */
	PM_TRANS_EVT_DISKSPACE_DONE,
} pmtransevt_t;

/** Transaction Conversations (ie, questions) */
typedef enum _pmtransconv_t {
	PM_TRANS_CONV_INSTALL_IGNOREPKG = 1,
	PM_TRANS_CONV_REPLACE_PKG = (1 << 1),
	PM_TRANS_CONV_CONFLICT_PKG = (1 << 2),
	PM_TRANS_CONV_CORRUPTED_PKG = (1 << 3),
	PM_TRANS_CONV_LOCAL_NEWER = (1 << 4),
	PM_TRANS_CONV_REMOVE_PKGS = (1 << 5),
	PM_TRANS_CONV_SELECT_PROVIDER = (1 << 6),
} 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,
	PM_TRANS_PROGRESS_DISKSPACE_START,
	PM_TRANS_PROGRESS_INTEGRITY_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 *, int, size_t, size_t);

int alpm_trans_get_flags(void);

/** Returns a list of packages added by the transaction.
 * @return a list of pmpkg_t structures
 */
alpm_list_t * alpm_trans_get_add(void);

/** Returns the list of packages removed by the transaction.
 * @return a list of pmpkg_t structures
 */
alpm_list_t * alpm_trans_get_remove(void);

/** Initialize the transaction.
 * @param flags flags of the transaction (like nodeps, etc)
 * @param event event callback function pointer
 * @param conv question callback function pointer
 * @param progress progress callback function pointer
 * @return 0 on success, -1 on error (pm_errno is set accordingly)
 */
int alpm_trans_init(pmtransflag_t flags,
                    alpm_trans_cb_event cb_event, alpm_trans_cb_conv conv,
                    alpm_trans_cb_progress cb_progress);

/** Prepare a transaction.
 * @param data the address of an alpm_list where a list
 * of pmdepmissing_t objects is dumped (conflicting packages)
 * @return 0 on success, -1 on error (pm_errno is set accordingly)
 */
int alpm_trans_prepare(alpm_list_t **data);

/** Commit a transaction.
 * @param data the address of an alpm_list where detailed description
 * of an error can be dumped (ie. list of conflicting files)
 * @return 0 on success, -1 on error (pm_errno is set accordingly)
 */
int alpm_trans_commit(alpm_list_t **data);

/** Interrupt a transaction.
 * @return 0 on success, -1 on error (pm_errno is set accordingly)
 */
int alpm_trans_interrupt(void);

/** Release a transaction.
 * @return 0 on success, -1 on error (pm_errno is set accordingly)
 */
int alpm_trans_release(void);

/** @} */

int alpm_sync_sysupgrade(int enable_downgrade);
int alpm_add_pkg(pmpkg_t *pkg);
int alpm_remove_pkg(pmpkg_t *pkg);

/*
 * 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;

alpm_list_t *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps,
		alpm_list_t *remove, alpm_list_t *upgrade);
pmpkg_t *alpm_find_satisfier(alpm_list_t *pkgs, const char *depstring);
pmpkg_t *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring);

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_checkconflicts(alpm_list_t *pkglist);

const char *alpm_conflict_get_package1(pmconflict_t *conflict);
const char *alpm_conflict_get_package2(pmconflict_t *conflict);
const char *alpm_conflict_get_reason(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_compute_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_compute_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,
	PM_ERR_DISK_SPACE,
	/* 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_VERSION,
	PM_ERR_DB_WRITE,
	PM_ERR_DB_REMOVE,
	/* Servers */
	PM_ERR_SERVER_BAD_URL,
	PM_ERR_SERVER_NONE,
	/* 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_NOT_LOCKED,
	/* Packages */
	PM_ERR_PKG_NOT_FOUND,
	PM_ERR_PKG_IGNORED,
	PM_ERR_PKG_INVALID,
	PM_ERR_PKG_OPEN,
	PM_ERR_PKG_CANT_REMOVE,
	PM_ERR_PKG_INVALID_NAME,
	PM_ERR_PKG_INVALID_ARCH,
	PM_ERR_PKG_REPO_NOT_FOUND,
	/* Deltas */
	PM_ERR_DLT_INVALID,
	PM_ERR_DLT_PATCHFAILED,
	/* Dependencies */
	PM_ERR_UNSATISFIED_DEPS,
	PM_ERR_CONFLICTING_DEPS,
	PM_ERR_FILE_CONFLICTS,
	/* Misc */
	PM_ERR_RETRIEVE,
	PM_ERR_WRITE,
	PM_ERR_INVALID_REGEX,
	/* External library errors */
	PM_ERR_LIBARCHIVE,
	PM_ERR_LIBFETCH,
	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: */