summaryrefslogtreecommitdiffstats
path: root/abuild.in
blob: 7f9818bb8a29b68ecf37d7bfc289f6c29dd006cb (plain) (blame)
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
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
#!/bin/ash -e

# abuild - build apk packages (light version of makepkg)
# Copyright (c) 2008-2015 Natanael Copa <ncopa@alpinelinux.org>
# Copyright (c) 2016 Timo Teräs <timo.teras@iki.fi>
#
# Distributed under GPL-2
#

program_version=@VERSION@
sysconfdir=@sysconfdir@
datadir=@datadir@

abuild_path=$(readlink -f $0)

if ! [ -f "$datadir/functions.sh" ]; then
	echo "$datadir/functions.sh: not found" >&2
	exit 1
fi
. "$datadir/functions.sh"

# defaults
: ${FAKEROOT:="fakeroot"}
: ${SUDO_APK:="abuild-apk"}
: ${APK:="apk"}
: ${ADDUSER:="abuild-adduser"}
: ${ADDGROUP:="abuild-addgroup"}

apk_opt_wait="--wait 30"

umask 022

# run optional log command for remote logging
logcmd() {
	${ABUILD_LOG_CMD:-true} "$@"
	return 0
}

# we override the default msg, warning and error as we want the pkgname
msg() {
	[ -n "$quiet" ] && return 0
	local prompt="$GREEN>>>${NORMAL}"
	local fake="${FAKEROOTKEY:+${BLUE}*${NORMAL}}"
	local name="${STRONG}${subpkgname:-$pkgname}${NORMAL}"
	printf "${prompt} ${name}${fake}: %s\n" "$1" >&2
}

warning() {
	local prompt="${YELLOW}>>> WARNING:${NORMAL}"
	local fake="${FAKEROOTKEY:+${BLUE}*${NORMAL}}"
	local name="${STRONG}${subpkgname:-$pkgname}${NORMAL}"
	printf "${prompt} ${name}${fake}: %s\n" "$1" >&2
}

error() {
	local prompt="${RED}>>> ERROR:${NORMAL}"
	local fake="${FAKEROOTKEY:+${BLUE}*${NORMAL}}"
	local name="${STRONG}${subpkgname:-$pkgname}${NORMAL}"
	printf "${prompt} ${name}${fake}: %s\n" "$1" >&2
	logcmd "ERROR: $pkgname: $1"
}

cross_creating() {
	test "$CHOST" != "$CTARGET" -a -n "$CBUILDROOT"
}

cross_compiling() {
	test "$CBUILD" != "$CHOST" -a -n "$CBUILDROOT"
}

want_check() {
	[ -n "$ABUILD_BOOTSTRAP" ] && return 1
	cross_compiling && return 1
	options_has "!check" && return 1
	return 0
}

cleanup() {
	local i=
	[ -z "$subpkgdir" ] && set_xterm_title ""
	if [ -n "$keep_build" ]; then
		return 0
	fi
	for i; do
		case $i in
		bldroot)
			if [ "$BUILD_ROOT" ]; then
				msg "Cleaning up build chroot"
				abuild-rmtemp "$BUILD_ROOT"
			fi;;
		pkgdir) msg "Cleaning up pkgdir"; rm -rf "$pkgbasedir";;
		srcdir) msg "Cleaning up srcdir"; rm -rf "$srcdir";;
		deps)
			if [ -z "$install_after" ] && [ -n "$uninstall_after" ]; then
				msg "Uninstalling dependencies..."
				undeps
			fi
			;;
		esac
	done
}

die() {
	trap - EXIT
	error "$@"
	cleanup $ERROR_CLEANUP
	exit 1
}

spell_error() {
	die "APKBUILD contains '$1'. It should be '$2'"
}

print_version() {
	msg "$program $program_version"
}

# check if apkbuild is basicly sane
default_sanitycheck() {
	local i= j= suggestion=
	msg "Checking sanity of $APKBUILD..."
	[ -z "$pkgname" ] && die "Missing pkgname in APKBUILD"
	[ -z "${pkgname##* *}" ] && die "pkgname contains spaces"
	[ -z "$pkgver" ] && die "Missing pkgver in APKBUILD"
	if [ "$pkgver" != "volatile" ] && [ -z "$nodeps" ]; then
		$APK version --check --quiet "$pkgver" ||\
			die "$pkgver is not a valid version"
	fi
	[ -z "$pkgrel" ] && die "Missing pkgrel in APKBUILD"
	[ -z "$pkgdesc" ] && die "Missing pkgdesc in APKBUILD"
	[ -z "$url" ] && die "Missing url in APKBUILD"
	[ -z "$license" ] && die "Missing license in APKBUILD"
	if [ $(echo "$pkgdesc" | wc -c) -gt 128 ]; then
		die "pkgdesc is too long"
	fi
	is_function package || warning "Missing package() function in APKBUILD"

	if [ -n "$replaces_priority" ] \
		&& ! echo $replaces_priority | egrep -q '^[0-9]+$'; then
		die "replaces_priority must be a number"
	fi
	# check so no package names starts with -
	for i in $pkgname $subpackages; do
		case $i in
		-*) die "${i%%:*} is not a valid package name";;
		esac
	done

	for i in $install; do
		local n=${i%.*}
		local suff=${i##*.}
		case "$suff" in
		pre-install|post-install|pre-upgrade|post-upgrade|pre-deinstall|post-deinstall);;
		*) die "$i: unknown install script suffix"
		esac
		if ! subpackages_has "$n" && [ "$n" != "$pkgname" ]; then
			die "$i: install script does not match pkgname or any subpackage"
		fi
		[ -e "$startdir/$i" ] || die "install script $i is missing"
		for j in chown chmod chgrp; do
			if grep -q $j "$startdir"/$i; then
				warning "$i: found $j"
				warning2 "Permissions should be fixed in APKBUILD package()"
			fi
		done
	done

	for i in $triggers; do
		local f=${i%=*}
		local p=${f%.trigger}
		[ "$f" = "$i" ] && die "$f: triggers must contain '='"
		[ "$p" = "$f" ] && die "$f: triggers scripts must have .trigger suffix"
		if ! subpackages_has "$p" && [ "$p" != "$pkgname" ]; then
			die "$p: trigger script does not match pkgname or any subpackage"
		fi

		[ -e "$startdir"/$f ] || die "trigger script $f is missing"
	done
	if [ -n "$source" ]; then
		for i in $source; do
			if install_has "$i"; then
				warning "You should not have \$install in source"
				continue
			fi
			case "$i" in
				*::*) i=${i%%::*};;
				https://*) makedepends_has wget && warning "wget no longer need to be in makedepends when source has https://" ;;
			esac
			list_has ${i##*/} $md5sums $sha256sums $sha512sums \
				|| die "${i##*/} is missing in checksums"

			# verify that our source does not have git tag version
			# name as tarball (typicallly github)
			if is_remote "$i" && [ "${i#*::}" = "$i" ]; then
				case ${i##*/} in
				v$pkgver.tar.*|$pkgver.tar.*)
					die "source ${i##*/} needs to be renamed to avoid possible collisions"
					;;
				esac
			fi
		done
	fi

	# verify that things listed in checksum also is listed in source
	local algo=
	for algo in md5 sha256 sha512; do
		eval set -- \$${algo}sums
		while [ $# -gt 1 ]; do
			local file="$2"
			shift 2
			source_has $file || die "$file exists in ${algo}sums but is missing in source"
		done
	done

	# common spelling errors
	[ -n "$depend" ] && spell_error depend depends
	[ -n "$makedepend" ] && spell_error makedepend makedepends
	[ -n "$pkguser" ] && spell_error pkguser pkgusers
	[ -n "$pkggroup" ] && spell_error pkggroup pkggroups
	[ -n "$subpackage" ] && spell_error subpackage subpackages
	[ -n "$checkdepend" ] && spell_error checkdepend checkdepends

	check_maintainer || die "Provide a valid RFC822 maintainer address"

	check_depends_dev || warning "depends_dev found but no development subpackage found"
	check_secfixes_comment || return 1

	makedepends_has 'g++' && ! options_has toolchain && warning "g++ should not be in makedepends"
	return 0
}

sanitycheck() {
	default_sanitycheck
}

sumcheck() {
	local algo="$1" sums="$2"
	local dummy f endreturnval originalparams origin file

	# get number of checksums
	set -- $sums
	local numsums=$(( $# / 2 ))

	set -- $source
	if [ $# -ne $numsums ]; then
		die "Number of ${algo}sums($numsums) does not correspond to number of sources($#)"
	fi
	fetch || return 1
	msg "Checking ${algo}sums..."
	cd "$srcdir" || return 1
	IFS=$'\n'
	endreturnval=0
	for src in $sums; do
		origin=$1; shift
		if ! echo "$src" | ${algo}sum -c; then
			endreturnval=1
			is_remote $origin || continue

			local csum="${src:0:8}"
			local file="$SRCDEST/$(filename_from_uri $origin)"

			echo "Because the remote file above failed the ${algo}sum check it will be renamed."
			echo "Rebuilding will cause it to re-download which in some cases may fix the problem."
			echo "Renaming: ${file##*/} to ${file##*/}.$csum"
			mv "$file" "$file.$csum"
		fi
	done
	unset IFS
	return $endreturnval
}

# for compatibility
md5check() {
	warning "'md5check' is deprecated. Use 'verify' instead"
	sumcheck md5 "$md5sums"
}

# verify checksums
verify() {
	local verified=false algo=
	for algo in sha512 sha256 sha1 md5; do
		local sums=
		eval sums=\"\$${algo}sums\"
		if [ -z "$sums" ] || [ -z "$source" ]; then
			continue
		fi
		sumcheck "$algo" "$sums" || return 1
		verified=true
		break
	done
	if [ -n "$source" ] && ! $verified; then
		die "Use 'abuild checksum' to generate/update the checksum(s)"
	fi
	return 0
}

# verify upstream sources
sourcecheck() {
	local uri
	for uri in $source; do
		is_remote $uri || continue
		case "$uri" in
		*::*)
			uri=${uri##*::}
			;;
		esac
		wget --spider -q "$uri" || return 1
	done
	return 0
}

uri_fetch() {
	local uri="$1"
	mkdir -p "$SRCDEST"
	msg "Fetching $uri"
	abuild-fetch -d "$SRCDEST" "$uri"
}

is_remote() {
	case "${1#*::}" in
		http://*|ftp://*|https://*)
			return 0;;
	esac
	return 1
}

filename_from_uri() {
	local uri="$1"
	local filename="${uri##*/}"  # $(basename $uri)
	case "$uri" in
	*::*) filename=${uri%%::*};;
	esac
	echo "$filename"
}

# try download from file from mirror first
uri_fetch_mirror() {
	local uri="$1"
	if [ -n "$DISTFILES_MIRROR" ]; then
		if is_remote "$DISTFILES_MIRROR"; then
			uri_fetch "$DISTFILES_MIRROR"/$(filename_from_uri $uri)\
				&& return 0
		else
			cp "$DISTFILES_MIRROR"/$(filename_from_uri $uri) \
				"$SRCDEST" && return 0
		fi
	fi
	uri_fetch "$uri"
}

symlinksrc() {
	local s
	mkdir -p "$srcdir"
	for s in $source; do
		if is_remote "$s"; then
			ln -sf "$SRCDEST/$(filename_from_uri $s)" "$srcdir"/
		else
			ln -sf "$startdir/$s" "$srcdir/"
		fi
	done
}

default_fetch() {
	local s
	mkdir -p "$srcdir"
	for s in $source; do
		if is_remote "$s"; then
			uri_fetch_mirror "$s" || return 1
			ln -sf "$SRCDEST/$(filename_from_uri $s)" "$srcdir"/
		else
			ln -sf "$startdir/$s" "$srcdir/"
		fi
	done
}

fetch() {
	default_fetch
}

# verify that all init.d scripts are openrc runscripts
initdcheck() {
	local i line
	for i in $source; do
		case $i in
		*.initd) line=$(head -n 1 "$srcdir"/$i);;
		*) continue ;;
		esac

		case "$line" in
		*sbin/openrc-run)
			;;
		*sbin/runscript)
			warning "$i is not an openrc #!/sbin/openrc-run"
			;;
		*)	error "$i is not an openrc #!/sbin/openrc-run"
			return 1
			;;
		esac
	done
}

# unpack the sources
default_unpack() {
	local u
	if [ -z "$force" ]; then
		verify || return 1
		initdcheck || return 1
	fi
	mkdir -p "$srcdir"
	for u in $source; do
		local s
		if is_remote "$u"; then
			s="$SRCDEST/$(filename_from_uri $u)"
		else
			s="$startdir/$u"
		fi
		case "$s" in
			*.tar)
				msg "Unpacking $s..."
				tar -C "$srcdir" -xf "$s" || return 1;;
			*.tar.gz|*.tgz)
				msg "Unpacking $s..."
				tar -C "$srcdir" -zxf "$s" || return 1;;
			*.tar.bz2)
				msg "Unpacking $s..."
				tar -C "$srcdir" -jxf "$s" || return 1;;
			*.tar.lz)
				msg "Unpacking $s..."
				tar -C "$srcdir" --lzip -xf "$s" || return 1;;
			*.tar.lzma)
				msg "Unpacking $s..."
				unlzma -c "$s" | tar -C "$srcdir" -x  \
					|| return 1;;
			*.tar.xz)
				msg "Unpacking $s..."
				unxz -c "$s" | tar -C "$srcdir" -x || return 1;;
			*.zip)
				msg "Unpacking $s..."
				unzip -n -q "$s" -d "$srcdir" || return 1;;
		esac
	done
}

unpack() {
	default_unpack
}

# cleanup source and package dir
clean() {
	msg "Cleaning temporary build dirs..."
	rm -rf "$srcdir"
	rm -rf "$pkgbasedir"
}

# cleanup fetched sources
cleancache() {
	local s
	for s in $source; do
		if is_remote "$s"; then
			s=$(filename_from_uri $s)
			msg "Cleaning downloaded $s ..."
			rm -f "$SRCDEST/$s"
		fi
	done
}

subpkg_unset() {
	unset subpkgname subpkgsplit subpkgarch
}

subpkg_set() {
	subpkgname=${1%%:*}

	local _splitarch=${1#*:}
	[ "$_splitarch" = "$1" ] && _splitarch=""

	subpkgsplit=${_splitarch%%:*}
	[ -z "$subpkgsplit" ] && subpkgsplit="${subpkgname##*-}"

	subpkgarch=${_splitarch#*:}
	if [ "$subpkgarch" = "$_splitarch" -o -z "$subpkgarch" ]; then
		case "$subpkgname" in
		*-doc | *-lang | *-lang-*) subpkgarch="noarch" ;;
		*) subpkgarch="$pkgarch" ;;
		esac
	fi
}

cleanpkg() {
	local i
	getpkgver || return 1
	msg "Cleaning built packages..."
	rm -f "$REPODEST/$repo/src/$pkgname-$pkgver-r$pkgrel.src.tar.gz"
	for i in $allpackages; do
		subpkg_set "$i"
		rm -f "$REPODEST/$repo/${subpkgarch/noarch/$CARCH}/$subpkgname-$pkgver-r$pkgrel.apk"
	done
	subpkg_unset

	# remove given packages from index
	update_abuildrepo_index
}

# clean all packages except current
cleanoldpkg() {
	local i j
	getpkgver || return 1
	msg "Cleaning all packages except $pkgver-r$pkgrel..."
	for i in $allpackages; do
		subpkg_set "$i"
		for j in "$REPODEST"/$repo/*/$subpkgname-[0-9]*.apk ; do
			[ "${j##*/}" = "$subpkgname-$pkgver-r$pkgrel.apk" ] \
				&& continue
			rm -f "$j"
		done
	done
	subpkg_unset
	update_abuildrepo_index
	return 0
}

mkusers() {
	local i
	for i in $pkggroups; do
		if ! getent group $i >/dev/null; then
			msg "Creating group $i"
			$ADDGROUP -S $i || return 1
		fi
	done
	for i in $pkgusers; do
		if ! getent passwd $i >/dev/null; then
			local gopt=
			msg "Creating user $i"
			if getent group $i >/dev/null; then
				gopt="-G $i"
			fi
			$ADDUSER -S -D -H $gopt $i || return 1
		fi
	done
}

# helper to update config.sub to a recent version
update_config_sub() {
	find . -name config.sub | (local changed=false; while read f; do
		if ! ./$f armv6-alpine-linux-muslgnueabihf 2>/dev/null; then
			msg "Updating $f"
			cp "$datadir"/${f##*/} "$f" || return 1
			changed=true
		else
			msg "No update needed for $f"
		fi
	done; $changed)
}

# helper to update config.guess to a recent version
update_config_guess() {
	find . -name config.guess | (local changed=false; while read f; do
		if grep -q aarch64 "$f" && grep -q ppc64le "$f"; then
			msg "No update needed for $f"
		else
			msg "Updating $f"
			cp "$datadir"/${f##*/} "$f" || return 1
			changed=true
		fi
	done; $changed)
}

runpart() {
	local part=$1
	[ -n "$DEBUG" ] && msg "$part"
	trap "die '$part failed'" EXIT
	$part
	trap - EXIT
}

# override those in your build script
getpkgver() {
	# this func is supposed to be overridden by volatile packages
	if [ "$pkgver" = "volatile" ]; then
		error "Please provide a getpkgver() function in your APKBUILD"
		return 1
	fi
}

have_patches() {
	local i
	for i in $source; do
		case ${i%::*} in
			*.patch) return 0;;
		esac
	done
	return 1
}

default_prepare() {
	local i
	[ -n "$builddir" -a -d "$builddir" ] && cd "$builddir"
	if ! have_patches; then
		return 0
	fi
	[ -d "$builddir" ] || { error "Is \$builddir set correctly?"; return 1; }
	for i in $source; do
		case ${i%::*} in
			*.patch)
				msg "${i%::*}"
				patch ${patch_args:--p1} -i "$srcdir/${i%::*}" || return 1
				;;
		esac
	done
}

prepare() {
	default_prepare
}

build() {
	:
}

# generate a simple tar.gz package of pkgdir
targz() {
	cd "$pkgdir" || return 1
	mkdir -p "$REPODEST"/src
	tar -czf "$REPODEST"/src/$pkgname-$pkgver-r$pkgrel.tar.gz *
}

postcheck() {
	local dir="$1" name="$2" i=
	msg "Running postcheck for $name"
	# checking for FHS compat
	if ! options_has "!fhs"; then
		for i in "$dir"/srv/* "$dir"/usr/local/* "$dir"/opt/*; do
			if [ -e "$i" ]; then
				error "Packages must not put anything under /srv, /usr/local or /opt"
				return 1
			fi
		done
		if [ -d "$dir"/usr/var ]; then
			error "Found /usr/var, localstatedir is most likely wrong"
			return 1
		fi
	fi

	# remove *.la files if libtool is not set
	if ! options_has "libtool"; then
		find "$dir" -name '*.la' -type f -delete
	fi

	# look for /usr/lib/charset.alias
	if [ -e "$dir"/usr/lib/charset.alias ] \
			&& ! options_has "charset.alias"; then
		error "Found /usr/lib/charset.alias"
		return 1
	fi
	# look for /usr/share/doc
	if [ -e "$dir"/usr/share/doc ] \
			&& ! is_doc_pkg "$name"; then
		warning "Found /usr/share/doc but package name doesn't end with -doc"
	fi
	# look for /usr/share/man
	if [ -e "$dir"/usr/share/man ]; then
		if ! is_doc_pkg "$name"; then
			warning "Found /usr/share/man but package name doesn't end with -doc"
		fi
		# check for uncompressed man pages
		i=$(find "$dir"/usr/share/man -name '*.[0-8]' -type f | sed "s|^$dir|\t|")
		if [ -n "$i" ]; then
			error "Found uncompressed man pages:"
			echo "$i"
			return 1
		fi
	fi
	# check directory permissions
	i=$(find "$dir" -type d -perm -777 | sed "s|^$dir|\t|")
	if [ -n "$i" ]; then
		warning "World writeable directories found:"
		echo "$i"
	fi
	# check so we dont have any suid root binaries that are not PIE
	i=$(find "$dir" -type f -perm /6000 \
		| xargs scanelf --nobanner --etype ET_EXEC \
		| sed "s|ET_EXEC $dir|\t|")
	if [ -n "$i" ]; then
		error "Found non-PIE files that has SUID:"
		echo "$i"
		return 1
	fi
	# test suid bit on executable
	if ! options_has "suid"; then
		i=$(find "$dir" \( -perm -u+s -o -perm -g+s \) -a -type f \
			-a -perm -o+x)
		if [ -n "$i" ]; then
			error "Found executable files with SUID bit set:"
			echo "$i"
			return 1
		fi
	fi

	# test for textrels
	if ! options_has "textrels"; then
		local res="$(scanelf --recursive --textrel --quiet "$dir")"
		if [ -n "$res" ]; then
			error "Found textrels:"
			echo "$res"
			return 1
		fi
	fi
	return 0
}

pre_split() {
	if [ -z "$subpkgname" ]; then
		return 0
	fi
	# the subpackages should not inherit those form main package
	provides=""
	install_if=""
}

prepare_subpackages() {
	local i
	cd "$startdir"
	for i in $subpackages; do
		# call abuild recursively, setting subpkg{dir,name}
		( subpkg_set "$i"; msg "Running split function $subpkgsplit..."; \
		  subpkgdir="$pkgbasedir/$subpkgname" subpkgname="$subpkgname" subpkgarch="$subpkgarch" \
		  $0 pre_split $subpkgsplit prepare_package \
			&& postcheck "$pkgbasedir/$subpkgname" "$subpkgname" ) || return 1
	done
	postcheck "$pkgdir" "$pkgname" || return 1
	# post check for /usr/share/locale
	if [ -d "$pkgdir"/usr/share/locale ]; then
		warning "Found /usr/share/locale"
		warning2 "Maybe add \$pkgname-lang to subpackages?"
	fi
}

default_lang() {
	pkgdesc="Languages for package $pkgname"
	install_if="$pkgname=$pkgver-r$pkgrel lang"

	local dir
	for dir in ${langdir:-/usr/share/locale}; do
		mkdir -p "$subpkgdir"/${dir%/*}
		mv "$pkgdir"/"$dir" "$subpkgdir"/"$dir" || return 1
	done
}

lang() {
	default_lang
}

default_lang_subpkg() {
	if [ -z "$lang" ]; then
		error "lang is not set"
		return 1
	fi
	pkgdesc="$pkgname language pack for $lang"
	install_if="$pkgname=$pkgver-r$pkgrel lang-$lang"

	local dir
	for dir in ${langdir:-/usr/share/locale}; do
		mkdir -p "$subpkgdir"/$dir
		mv "$pkgdir"/$dir/$lang* \
		"$subpkgdir"/$dir/ \
		|| return 1
	done
}

lang_subpkg() {
	default_lang_subpkg
}

prepare_language_packs() {
	local lang
	for lang in $linguas; do
		lang="$lang" \
		subpkgname="$pkgname-lang-$lang" \
		subpkgdir="$pkgbasedir"/$subpkgname \
			$0 lang_subpkg prepare_package || return 1
	done
}

# echo '-dirty' if git is not clean
git_dirty() {
	if [ $(git status -s "$startdir" | wc -l) -ne 0 ]; then
		echo "-dirty"
	fi
}

# echo last commit hash id
git_last_commit() {
	git log --format=oneline -n 1 "$startdir" | awk '{print $1}'
}

get_maintainer() {
	if [ -z "$maintainer" ]; then
		maintainer=$(awk -F': ' '/\# *Maintainer/ {print $2}' "$APKBUILD")
		# remove surrounding whitespace
		maintainer=$(echo "$maintainer" | xargs)
	fi
}

check_maintainer() {
	get_maintainer
	if [ -z "$maintainer" ]; then
		warning "No maintainer"
	else
		# try to check for a valid rfc822 address
		case "$maintainer" in
			*[A-Za-z0-9]*\ \<*@*.*\>) ;;
			*) return 1 ;;
		esac
	fi
}

check_secfixes_comment() {
	local c=$(sed -E -n -e '/^# secfixes:/,/(^[^#]|^$)/p' $APKBUILD | grep '^#')
	local invalid=$(echo "$c" \
		| grep -v -E '(^# secfixes:|^#  +- [A-Z0-9-]+|^#   [0-9]+.*:$|^#$)')
	if [ -z "$invalid" ]; then
		return 0
	fi

	# check if there are tabs
	if echo "$invalid" | grep -q $'\t'; then
		error "secfixes comment must not have tabs:"
		echo "$c" | grep $'\t' >&2
		return 1
	fi

	error "secfixes comment is not valid:"
	echo "$invalid" >&2
	return 1
}

check_depends_dev() {
	if [ -z "$depends_dev" ]; then
		return 0
	fi
	local i
	for i in $pkgname $subpackages; do
		case "${i%%:*}" in
		*-dev) return 0 ;;
		esac
	done
	return 1
}

prepare_metafiles() {
	getpkgver || return 1
	local name=${subpkgname:-$pkgname}
	[ -z "${name##* *}" ] && die "package name contains spaces"
	local dir=${subpkgdir:-$pkgdir}
	local pkg="$name-$pkgver-r$pkgrel.apk"
	local pkginfo="$controldir"/.PKGINFO
	local sub

	[ ! -d "$dir" ] && die "Missing $dir"
	cd "$dir"
	mkdir -p "$controldir"
	local builddate=$(date -u "+%s")

	# Fix package size on several filesystems
	case "$(df -PT . | awk 'END {print $2}')" in
	btrfs|ecryptfs|zfs)
		sync;;
	esac

	local size=$(du -sk | awk '{print $1 * 1024}')

	if [ "$arch" != "$apkbuild_arch" ]; then
		local msg="Split function set arch=\"$arch\" for $name, use subpackages=pkg:split:arch format instead"
		[ "$arch" != "noarch" ] && die "$msg"
		warning "$msg"
		subpkgarch="$arch"
	fi

	echo "# Generated by $(basename $0) $program_version" >"$pkginfo"
	if [ -n "$FAKEROOTKEY" ]; then
		echo "# using $($FAKEROOT -v)" >> "$pkginfo"
	fi
	echo "# $(date -u)" >> "$pkginfo"
	cat >> "$pkginfo" <<-EOF
		pkgname = $name
		pkgver = $pkgver-r$pkgrel
		pkgdesc = $pkgdesc
		url = $url
		builddate = $builddate
		packager = ${PACKAGER:-"Unknown"}
		size = $size
		arch = ${subpkgarch:-$pkgarch}
		origin = $pkgname
	EOF
	local i deps
	deps="$depends"
	if [ "$pkgname" != "busybox" ] && ! depends_has busybox && ! depends_has /bin/sh; then
		for i in $install $triggers; do
			local s=${i%=*}
			[ "$name" != "${s%.*}" ] && continue
			if head -n 1 "$startdir/$s" | grep '^#!/bin/sh' >/dev/null ; then
				msg "Script found. /bin/sh added as a dependency for $pkg"
				deps="$deps /bin/sh"
				break
			fi
		done
	fi

	# store last_commit in global var so we only call git once
	if [ -z "$last_commit" ]; then
		last_commit="$(git_last_commit)$(git_dirty)"
	fi
	echo "commit = $last_commit" >> "$pkginfo"

	get_maintainer
	if [ -n "$maintainer" ]; then
		echo "maintainer = $maintainer" >> "$pkginfo"
	fi

	if [ -n "$replaces_priority" ]; then
		echo "replaces_priority = $replaces_priority" >> "$pkginfo"
	fi

	echo "license = $license" >> "$pkginfo"
	for i in $replaces; do
		echo "replaces = $i" >> "$pkginfo"
	done
	for i in $deps; do
		echo "depend = $i" >> "$pkginfo"
	done
	for i in $provides; do
		echo "provides = $i" >> "$pkginfo"
	done
	for i in $triggers; do
		local f=${i%=*}
		local dirs=${i#*=}
		[ "${f%.trigger}" != "$name" ] && continue
		echo "triggers = ${dirs//:/ }" >> "$pkginfo"
	done
	if [ -n "$install_if" ]; then
		echo "install_if = $(echo $install_if)" >> "$pkginfo"
	fi

	local metafiles=".PKGINFO"
	for i in $install $triggers; do
		local f=${i%=*}
		local n=${f%.*}
		if [ "$n" != "$name" ]; then
			continue
		fi
		script=${f#$name}
		msg "Adding $script"
		cp "$startdir/$f" "$controldir/$script" || return 1
		chmod +x "$controldir/$script"
		metafiles="$metafiles $script"
	done
	echo $metafiles | tr ' ' '\n' > "$controldir"/.metafiles
}

prepare_trace_rpaths() {
	local dir=${subpkgdir:-$pkgdir}
	local etype= soname= file= sover=
	[ "${subpkgarch:-$pkgarch}" = "noarch" ] && return 0
	options_has "!tracedeps" && return 0
	# lets tell all the places we should look for .so files - all rpaths
	scanelf --quiet --recursive --rpath "$dir" \
		| sed -e 's/[[:space:]].*//' -e 's/:/\n/' | sort -u \
		>"$controldir"/.rpaths
	if grep -q -x '/usr/lib' "$controldir"/.rpaths; then
		warning "Redundant /usr/lib in rpath found"
	fi
	if grep '^/home/' "$controldir"/.rpaths; then
		error "Has /home/... in rpath"
		return 1
	fi
}

# search for broken symlinks so we later can pull in proper depends
prepare_symlinks() {
	local target
	local dir="${subpkgdir:-$pkgdir}"
	options_has "!tracedeps" && return 0
	cd "$dir" || return 1
	find -type l | while read symlink; do
		target=$(readlink "$symlink")
		if ! [ -e "$dir$(normalize_target_path "$target" "$symlink")" ]; then
			echo "$symlink $target" >> "$controldir"/.symlinks
		fi
	done
}

prepare_pkgconfig_provides() {
	local dir="${subpkgdir:-$pkgdir}"
	options_has "!tracedeps" && return 0
	cd "$dir" || return 1
	for i in usr/lib/pkgconfig/*.pc; do
		if ! [ -e "$i" ]; then
			continue
		fi
		local f=${i##*/}
		local v=$(PKG_CONFIG_PATH="$dir"/usr/lib/pkgconfig PKG_CONFIG_MAXIMUM_TRAVERSE_DEPTH=1 pkg-config \
			--modversion ${f%.pc})
		echo "${f%.pc}=${v:-0}" >> "$controldir"/.provides-pc
	done
}

# check if dir has arch specific binaries
dir_has_arch_binaries() {
	local dir="$1"
	# if scanelf returns something, then we have binaries
	[ -n "$(scanelf -R "$dir" | head -n 1)" ] && return 0

	# look for static *.a
	[ -n "$(find "$dir" -type f -name '*.a' | head -n 1)" ] && return 0

	return 1
}

# returns true if this is the -dev package
is_dev_pkg() {
	test "${subpkgname%-dev}" != "$subpkgname"
}

# returns true if this is the -doc package
is_doc_pkg() {
	test "${1%-doc}" != "$1"
}

# check that noarch is set if needed
archcheck() {
	options_has "!archcheck" && return 0
	if dir_has_arch_binaries "${subpkgdir:-$pkgdir}"; then
		[ "${subpkgarch:-$pkgarch}" != "noarch" ] && return 0
		error "Arch specific binaries found so arch must not be set to \"noarch\""
		return 1
	elif [ "${subpkgarch:-$pkgarch}" != "noarch" ] && ! is_dev_pkg; then
		# we dont want -dev package go to noarch
		warning "No arch specific binaries found so arch should probably be set to \"noarch\""
	fi
	return 0
}

prepare_package() {
	msg "Preparing ${subpkgname:+sub}package ${subpkgname:-$pkgname}..."
	stripbin
	prepare_metafiles \
		&& prepare_trace_rpaths \
		&& prepare_symlinks \
		&& prepare_pkgconfig_provides \
		|| return 1
	archcheck
}

pkginfo_val() {
	local key="$1"
	local file="$2"
	awk -F ' = ' "\$1 == \"$key\" {print \$2}" "$file"
}

# find real path to so files
real_so_path() {
	local so="$1"
	shift
	while [ $# -gt 0 ]; do
		[ -e "$1"/$so ] && realpath "$1/$so" && return 0
		shift
	done
	error "$so: path not found"
	return 1
}

# search rpaths and /usr/lib /lib for given so files
find_so_files() {
	local rpaths=$(cat "$1")
	shift
	while [ $# -gt 0 ]; do
		real_so_path "$1" /usr/lib /lib $rpaths || return 1
		shift
	done
	return 0
}

subpkg_provides_prefixed_so() {
	[ -n "$sonameprefix" ] && grep -q -w "^$sonameprefix$1" \
		"$pkgbasedir"/.control.*/.provides-so 2>/dev/null
}

subpkg_provides_so() {
	grep -q -w "^$1" "$pkgbasedir"/.control.*/.provides-so 2>/dev/null
}

subpkg_provides_pc() {
	grep -q -w "^${1%%[<>=]*}" "$pkgbasedir"/.control.*/.provides-pc \
		2>/dev/null
}

trace_apk_deps() {
	local name="$1"
	local dir="$2"
	local parch="$3"
	local i= found= autodeps= deppkgs= missing=
	local apkroot=

	case "$parch" in
	$CBUILD_ARCH) ;;
	$CARCH | $CTARGET_ARCH) apkroot="--root $CBUILDROOT --arch $CTARGET_ARCH" ;;
	esac

	msg "Tracing dependencies..."
	# add pkgconfig if usr/lib/pkgconfig is found
	if [ -d "$pkgbasedir"/$name/usr/lib/pkgconfig ] \
			&& ! grep -q '^depend = pkgconfig' "$dir"/.PKGINFO; then
		autodeps="$autodeps pkgconfig"
	fi

	# special case for libpthread: we need depend on libgcc
	if [ "$CLIBC" = "uclibc" ] && [ -f "$dir"/.needs-so ] \
			&& grep -q -w '^libpthread.so.*' "$dir"/.needs-so \
			&& ! grep -q -w "^depend = libgcc" "$dir"/.PKGINFO; then
		autodeps="$autodeps libgcc"
		msg "  added libgcc (due to libpthread)"
	fi

	[ -f "$dir"/.needs-so ] && for i in $(cat "$dir"/.needs-so); do
		# first check if its provided by same apkbuild
		grep -q -w "^$sonameprefix$i" "$dir"/.provides-so 2>/dev/null && continue

		if subpkg_provides_prefixed_so "$i"; then
			autodeps="$autodeps so:$sonameprefix$i"
		elif subpkg_provides_so "$i" \
				|| $APK $apkroot info --quiet --installed "so:$i"; then
			autodeps="$autodeps so:$i"
		else
			missing="$missing $i"
		fi
	done

	# find all packages that holds the so files
	if [ -f "$dir"/.rpaths ]; then
		local so_files=$(find_so_files "$dir"/.rpaths $missing) \
			|| return 1
		deppkgs=$($APK $apkroot info --quiet --who-owns $so_files) || return 1
	fi

	for found in $deppkgs; do
		if grep -w "^depend = ${found}$" "$dir"/.PKGINFO >/dev/null ; then
			warning "You can remove '$found' from depends"
			continue
		fi
		autodeps="$autodeps $found"
	done

	# symlink targets
	for i in $(sort -u "$dir"/.symlinks-needs 2>/dev/null); do
		autodeps="$autodeps $i"
	done

	# pkg-config depends
	for i in $(sort -u "$dir"/.needs-pc 2>/dev/null); do
		if subpkg_provides_pc "$i" \
				|| $APK $apkroot info --quiet --installed "pc:$i"; then
			local provider=$(apk $apkroot search --quiet "pc:$i")
			if list_has "$provider" $depends_dev; then
				warning "$provider should be removed from depends_dev"
			fi
			autodeps="$autodeps pc:$i"
		else
			warning "Could not find any provider for pc:$i"
			local pcfile=/usr/lib/pkgconfig/"${i%%[<>=]*}".pc
			if [ -e "$pcfile" ]; then
				local owner=$($APK $apkroot info --quiet --who-owns $pcfile)
				warning "${owner:-package providing $pcfile} needs to be rebuilt"
			fi
		fi
	done

	echo "# automatically detected:" >> "$dir"/.PKGINFO
	if [ -f "$dir"/.provides-so ]; then
		sed 's/^\(.*\) \([0-9].*\)/provides = so:\1=\2/' \
			"$dir"/.provides-so | sort -u \
			>> "$dir"/.PKGINFO
	fi
	if [ -f "$dir"/.provides-pc ]; then
		sed 's/^/provides = pc:/' "$dir"/.provides-pc | sort -u \
			>> "$dir"/.PKGINFO
	fi
	[ -z "$autodeps" ] && return 0
	for i in $autodeps; do
		echo "depend = $i"
	done | sort -u >> "$dir"/.PKGINFO
	# display all depends
	sed -n '/^depend =/s/depend = /\t/p' "$dir"/.PKGINFO >&2
}

find_scanelf_paths() {
	local datadir="$1"
	local paths="$datadir/lib:$datadir/usr/lib" i= rpaths=
	if [ -n "$ldpath" ]; then
		paths="$paths:$(echo "${datadir}${ldpath}" | sed "s|:|:$datadir|g")"
	fi
	# search in all rpaths
	for rpaths in "$pkgbasedir"/.control.*/.rpaths; do
		[ -f "$rpaths" ] || continue
		while read i; do
			local dir="${datadir}${i}"
			IFS=:
			if [ -d "$dir" ] && ! list_has "$dir" $paths; then
				paths="$paths:${dir}"
			fi
			unset IFS
		done < "$rpaths"
	done
	echo "$paths"
}

scan_shared_objects() {
	local name="$1" controldir="$2" datadir="$3"
	local opt= i=

	if [ "${subpkgarch:-$pkgarch}" = "noarch" ]; then
		return 0
	fi

	# allow spaces in paths
	IFS=:
	set -- $(find_scanelf_paths "$datadir")
	unset IFS

	# sanity check, verify that each path is prefixed with datadir
	for i; do
		if [ "${i#$datadir}" = "$i" ]; then
			error "Internal error in scanelf paths"
			return 1
		fi
	done

	if options_has "ldpath-recursive"; then
		opt="--recursive"
	fi
	msg "Scanning shared objects"
	# lets tell all the .so files this package provides in .provides-so
	scanelf --nobanner --soname $opt "$@" | while read etype soname file; do
		# if soname field is missing, soname will be the filepath
		sover=0
		if [ -z "$file" ]; then
			file="$soname"
			soname=${soname##*/}
		fi

		# we only want shared libs
		case $soname in
		*.so|*.so.[0-9]*|*.c32);;
		*) continue;;
		esac

		case "$file" in
		*.so.[0-9]*) sover=${file##*.so.};;
		*.so)
			# filter out sonames with version when file does not
			# have version
			case "$soname" in
			*.so.[0-9]*)
				if options_has "sover-namecheck"; then
					continue
				fi
			esac
			;;
		esac
		list_has "$soname" $somask && continue
		echo "$sonameprefix$soname $sover"
	# use awk to filter out dupes that has sover = 0
	done | awk '{ if (so[$1] == 0) so[$1] = $2; }
		END { for (i in so) print(i " " so[i]); }' \
		| sort -u > "$controldir"/.provides-so

	# verify that we dont have any duplicates
	local dupes="$(cut -d' ' -f1 "$controldir"/.provides-so | uniq -d)"
	if [ -n "$dupes" ]; then
		die  "provides multiple versions of same shared object: $dupes"
	fi

	# now find the so dependencies
	scanelf --nobanner --recursive --needed "$datadir"  | tr ' ' ':' \
		| awk -F ":" '$2 != "" && ($1 == "ET_DYN" || $1 == "ET_EXEC") {print $2}'  \
		| sed 's:,:\n:g' | sort -u \
	| while read soname; do
		# only add files that are not self provided
		grep -q -w "^$sonameprefix$soname" "$controldir"/.provides-so \
			|| list_has "$soname" $somask \
			|| echo $soname
	done > "$controldir"/.needs-so
}

# normalize a symlink target path (1st arg)
# Converts a relative path to absolute with respect to the symlink
# path (2nd arg).
normalize_target_path() {
	local path=$1
	[ "${path:0:1}" = / ] || path=$(dirname "$2")/$path

	local oifs="$IFS" pathstr= i=
	IFS='/'
	set -- $path
	for i; do
		case "$i" in
		"."|"") continue;;
		"..")   pathstr="${pathstr%%/${pathstr##*/}}";;
		*) pathstr="${pathstr}/$i";;
		esac
	done
	echo "$pathstr"
}

# find which package provides file that symlink points to
scan_symlink_targets() {
	local name="$1" dir="$2" datadir="$3"
	local symfile= targetpath=
	cd "$datadir"
	for symfile in "$pkgbasedir"/.control.*/.symlinks; do
		local d="${symfile%/.symlinks}"
		if ! [ -e "$symfile" ] || [ "$d" = "$dir" ]; then
			continue
		fi

		while read symlink target; do
			targetpath=$datadir$(normalize_target_path "$target" "$symlink")
			if [ -e "$targetpath" ] || [ -L "$targetpath" ]; then
				echo "$name=$pkgver-r$pkgrel" \
					>> "$d"/.symlinks-needs
			fi
		done < "$symfile"
	done
}

#find pkg-config dependencies
scan_pkgconfig_depends() {
	local provides_pc="$1" controldir= name= datadir=
	[ -e "$provides_pc" ] || return 0
	controldir="${provides_pc%/*}"
	name="$(pkginfo_val pkgname "$controldir"/.PKGINFO)"
	datadir="$pkgbasedir"/$name
	for i in $(sort -u "$provides_pc"); do
		PKG_CONFIG_PATH="$datadir"/usr/lib/pkgconfig pkg-config \
				--print-requires \
				--print-requires-private ${i%=*} \
				| sed -E 's/\s*([<>=]+)\s*/\1/' \
				| while read pc; do
			# only add files that are not self provided
			if ! grep -q -w "^${pc%%[<>=]*}" "$provides_pc"; then
				echo "$pc" >> "$controldir"/.needs-pc
			fi
		done
	done
}

# read size in bytes from stdin and show as human readable
human_size() {
	awk '{  split("B KB MB GB TB PB", type)
		for(i=5; y < 1 && $1 > 0; i--)
			y = $1 / (2^(10*i))
		printf("%.1f %s\n", y, type[i+2]) }'
}

create_apks() {
	local file= dir= name= ver= apk= datadir= size=
	getpkgver || return 1
	if ! options_has "!tracedeps"; then
		for file in "$pkgbasedir"/.control.*/.PKGINFO; do
			dir="${file%/.PKGINFO}"
			name="$(pkginfo_val pkgname $file)"
			datadir="$pkgbasedir"/$name
			subpkgname=$name
			scan_shared_objects "$name" "$dir" "$datadir"
			scan_symlink_targets "$name" "$dir" "$datadir"
		done
		for file in "$pkgbasedir"/.control.*/.provides-pc; do
			scan_pkgconfig_depends "$file"
		done
	fi

	for file in "$pkgbasedir"/.control.*/.PKGINFO; do
		local dir="${file%/.PKGINFO}"
		local name=$(pkginfo_val pkgname $file)
		local ver=$(pkginfo_val pkgver $file)
		local size=$(pkginfo_val size $file | human_size)
		local apk=$name-$ver.apk
		local datadir="$pkgbasedir"/$name
		local subpkgname=$name
		local subpkgarch=$(pkginfo_val arch $file)

		trace_apk_deps "$name" "$dir" "$subpkgarch" || return 1
		msg "Package size: ${size}"
		msg "Compressing data..."
		(
		cd "$datadir"
		# data.tar.gz
		set -- *
		if [ "$1" = '*' ]; then
			touch .dummy
			set -- .dummy
		fi
		tar --xattrs -f - -c "$@" | abuild-tar --hash | gzip -9 >"$dir"/data.tar.gz

		msg "Create checksum..."
		# append the hash for data.tar.gz
		local sha256=$(sha256sum "$dir"/data.tar.gz | cut -f1 -d' ')
		echo "datahash = $sha256" >> "$dir"/.PKGINFO

		# control.tar.gz
		cd "$dir"
		tar -f - -c $(cat "$dir"/.metafiles) | abuild-tar --cut \
			| gzip -9 > control.tar.gz
		abuild-sign -q control.tar.gz || exit 1

		msg "Create $apk"
		mkdir -p "$REPODEST"/$repo/${subpkgarch/noarch/$CARCH}
		cat control.tar.gz data.tar.gz > "$REPODEST"/$repo/${subpkgarch/noarch/$CARCH}/$apk
		)
	done
}

build_abuildrepo() {
	local d apk _build=build _check=check_fakeroot
	if ! is_function package; then
		# if package() is missing then build is called from rootpkg
		_build=true
	fi
	if options_has "!checkroot"; then
		_check=check
	fi
	if ! want_check; then
		_check=true
	fi
	if ! apk_up2date || [ -n "$force" ]; then
		print_version
		# check early if we have abuild key
		abuild-sign --installed
		logcmd "building $repo/$pkgname-$pkgver-r$pkgrel"
		sanitycheck
		builddeps
		clean
		fetch
		unpack
		prepare
		mkusers
		$_build
		$_check
		rootpkg
		cleanup $CLEANUP
	fi
	update_abuildrepo_index
}

update_abuildrepo_index() {
	local i allarch=""
	for i in $allpackages; do
		subpkg_set "$i"
		##NOARCH: These packages are really in $CARCH and do not need their
		# own repository. --rewrite-arch is used below to make sure the index
		# thinks they are for $CARCH and apk-tools will fetch them from
		# correct URL path. Remainder of the script uses ${subpkgarch/noarch/$CARCH}
		# when expanding to the target repository path.
		[ "$subpkgarch" = "noarch" ] && subpkgarch="$CARCH"
		list_has "$subpkgarch" "$allarch" || allarch="$allarch $subpkgarch"
	done
	subpkg_unset

	[ -z "$DESCRIPTION" ] && DESCRIPTION="$repo $(cd $startdir && git describe || true)"
	for i in $allarch; do
		cd "$REPODEST/$repo/$i"
		local index=$i/APKINDEX.tar.gz

		msg "Updating the $repo/$i repository index..."
		local sign=".SIGN.RSA.${SIGN_PUBLIC_KEY##*/}"
		local oldindex=
		if [ -f APKINDEX.tar.gz ]; then
			oldindex="--index APKINDEX.tar.gz"
		fi
		( $APK index --quiet $oldindex --output APKINDEX.tar.gz.$$ \
			--description "$DESCRIPTION" --rewrite-arch $i *.apk && \
		  msg "Signing the index..." && \
		  abuild-sign -q APKINDEX.tar.gz.$$ && \
		  chmod 644 APKINDEX.tar.gz.$$ && \
		  mv APKINDEX.tar.gz.$$ APKINDEX.tar.gz \
		) || (rm -f APKINDEX.tar.gz.$$ ; die "Failed to create index")
	done
}

# predefined function check
default_check() {
	warning "APKBUILD does not run any tests!"
	msg2 "Alpine policy will soon require that packages have any relevant testsuites run during the build process."
	msg2 "To fix, either define a check() function, or declare !check in \$options to indicate the package does not have a testsuite."
}

check() {
	default_check
}

# predefined splitfunc doc
default_doc() {
	depends="$depends_doc"
	pkgdesc="$pkgdesc (documentation)"
	install_if="docs $pkgname=$pkgver-r$pkgrel"

	local i
	for i in doc man info html sgml licenses gtk-doc ri help; do
		if [ -d "$pkgdir/usr/share/$i" ]; then
			mkdir -p "$subpkgdir/usr/share"
			mv "$pkgdir/usr/share/$i" "$subpkgdir/usr/share/"
		fi
	done

	# compress man pages
	local mandir="$subpkgdir"/usr/share/man
	[ -d "$mandir" ] && find "$mandir" -type l \
		-a \( -name \*.[0-8n] -o -name \*.[0-8][a-z]* \) \
		-a \! \( -name '*.gz' -o -name '*.bz2' -o -name '*.xz' \) \
		| while read symlink; do

		ln -s $(readlink $symlink).gz "$symlink".gz
		rm -f "$symlink"
	done
	[ -d "$mandir" ] && find "$mandir" -type f \
		-a \( -name \*.[0-8n] -o -name \*.[0-8][a-z]* \) \
		-a \! \( -name '*.gz' -o -name '*.bz2' -o -name '*.xz' \) \
		-exec stat -c "%i %n" \{\} \+ | while read inode name; do

		# Skip hardlinks removed in last iteration.
		[ -f "$name" ] || continue

		local islink=0
		find "$mandir" -type f -links +1 \
			-a \( -name \*.[0-8n] -o -name \*.[0-8][a-z]* \) \
			-a \! \( -name '*.gz' -o -name '*.bz2' -o -name '*.xz' \) \
			-exec stat -c "%i %n" \{\} \+ | while read linode lname; do
			if [ "$linode" = "$inode" -a "$lname" != "$name" ]; then
				islink=1
				rm -f "$lname"
				ln -s "${name##*/}".gz "$lname".gz
			fi
		done

		[ $islink -eq 0 ] && gzip -9 "$name"
	done

	rm -f "$subpkgdir/usr/share/info/dir"

	# remove if empty, ignore error (not empty)
	rmdir "$pkgdir/usr/share" "$pkgdir/usr" 2>/dev/null || :
}

doc() {
	default_doc
}

# predefined splitfunc dbg
default_dbg() {
	local f
	pkgdesc="$pkgdesc (debug symbols)"

	binfiles=$(scanelf -R "$pkgdir" | grep ET_DYN | sed "s:$pkgdir\/::g" | sed "s:ET_DYN ::g")
	for f in $binfiles; do
		srcdir=$(dirname $pkgdir/$f)
		srcfile=$(basename $pkgdir/$f)
		dstdir=$(dirname $subpkgdir/usr/lib/debug/$f.debug)
		dstfile=$(basename $subpkgdir/usr/lib/debug/$f.debug)
		if [ ! -d $dstdir ] ; then
			mkdir -p $dstdir
		fi
		cd $srcdir
		local XATTR=$(getfattr --match="" --dump "${srcfile}")
		${CROSS_COMPILE}objcopy --only-keep-debug $srcfile $dstfile
		${CROSS_COMPILE}objcopy --add-gnu-debuglink=$dstfile $srcdir/$srcfile
		mv $dstfile $dstdir
		${CROSS_COMPILE}strip $srcfile
		[ -n "$XATTR" ] && { echo "$XATTR" | setfattr --restore=-; }
	done
	return 0
}

dbg() {
	default_dbg
}

# predefined splitfunc dev
default_dev() {
	local i= j=
	depends="$depends_dev"
	pkgdesc="$pkgdesc (development files)"

	cd "$pkgdir" || return 0
	local libdirs=usr/
	[ -d lib/ ] && libdirs="lib/ $libdirs"
	for i in usr/include usr/lib/pkgconfig usr/share/aclocal\
			usr/share/gettext usr/bin/*-config	\
			usr/share/vala/vapi usr/share/gir-[0-9]*\
			usr/share/qt*/mkspecs			\
			usr/lib/qt*/mkspecs			\
			usr/lib/cmake				\
			$(find . -name include -type d) 	\
			$(find $libdirs -name '*.[acho]' \
				-o -name '*.prl' 2>/dev/null); do
		if [ -e "$pkgdir/$i" ] || [ -L "$pkgdir/$i" ]; then
			d="$subpkgdir/${i%/*}"	# dirname $i
			mkdir -p "$d"
			mv "$pkgdir/$i" "$d"
			rmdir "$pkgdir/${i%/*}" 2>/dev/null || :
		fi
	done
	# move *.so links needed when linking the apps to -dev packages
	for i in lib/*.so usr/lib/*.so; do
		if [ -L "$i" ]; then
			mkdir -p "$subpkgdir"/"${i%/*}"
			mv "$i" "$subpkgdir/$i" || return 1
		fi
	done
	return 0
}

dev() {
	default_dev
}

# predefined splitfunc libs
default_libs() {
	pkgdesc="$pkgdesc (libraries)"
	local dir= file=
	for dir in lib usr/lib; do
		for file in "$pkgdir"/$dir/lib*.so.[0-9]*; do
			[ -f "$file" ] || continue
			mkdir -p "$subpkgdir"/$dir
			mv "$file" "$subpkgdir"/$dir/
		done
	done
}

libs() {
	default_libs
}

# predefined splitfunc openrc
default_openrc() {
	pkgdesc="$pkgdesc (OpenRC init scripts)"
	install_if="openrc $pkgname=$pkgver-r$pkgrel"
	local dir file
	for dir in conf.d init.d; do
		if [ -d "$pkgdir/etc/$dir" ]; then
			mkdir -p "$subpkgdir"/etc
			mv "$pkgdir/etc/$dir" "$subpkgdir"/etc/
		fi
	done
	return 0
}

openrc() {
	default_openrc
}


is_function() {
	type "$1" 2>&1 | head -n 1 | egrep -q "is a (shell )?function"
}

do_fakeroot() {
	if [ -n "$FAKEROOT" ]; then
		$FAKEROOT -- "$@"
	else
		"$@"
	fi
}

# wrap check() with fakeroot
check_fakeroot() {
	cd "$startdir"
	[ -n "$FAKEROOT" ] && msg "Entering fakeroot..."
	do_fakeroot "$abuild_path" $color_opt $keep_build check
}

# build and package in fakeroot
rootpkg() {
	local _package=package
	if ! is_function package; then
		# if package() is missing then run 'build' in fakeroot instead
		warning "No package() function in APKBUILD"
		_package=build
	fi
	cd "$startdir"
	rm -rf "$pkgdir"
	[ -n "$FAKEROOT" ] && msg "Entering fakeroot..."
	do_fakeroot "$abuild_path" $color_opt $keep_build \
		$_package \
		prepare_subpackages \
		prepare_language_packs \
		prepare_package \
		create_apks
}

srcpkg() {
	echo "Ensuring source is fetched"
	fetch
	getpkgver || return 1
	local p="$pkgname-$pkgver-$pkgrel"
	local prefix="${startdir##*/}"
	local i files="$prefix/APKBUILD"
	for i in $source; do
		echo "Packaging source file: $i"
		if [ ! -e $(filename_from_uri $i) ]; then
			cp $srcdir/$(filename_from_uri $i) $(filename_from_uri $i)
		fi
		files="$files $prefix/$(filename_from_uri $i)"
	done

	for i in $install; do
		echo "Packaging install file: $i"
		files="$files $prefix/$i"
	done

	for i in $triggers; do
		local f=${i%=*}
		echo "Packaging trigger file: $f"
		files="$files $prefix/$f"
	done

	mkdir -p "$REPODEST/src"
	msg "Creating source package $p.src.tar.gz..."
	(cd .. && tar -zcf "$REPODEST/src/$p.src.tar.gz" $files)
}

# return true if arch is supported or noarch
check_arch() {
	local ret=1
	local i
	for i in $arch; do
		case $i in
		all | noarch) ret=0 ;;
		"$CARCH") ret=0 ;;
		"!$CARCH") return 1 ;;
		esac
	done
	return $ret
}

# return true if libc is not masked in options
check_libc() {
	! list_has "!libc_$CLIBC" $options
}

# check if package is up to date
apk_up2date() {
	getpkgver || return 1

	local i s
	for i in $allpackages; do
		subpkg_set "$i"
		if [ ! -f "$REPODEST/$repo/${subpkgarch/noarch/$CARCH}/$subpkgname-$pkgver-r$pkgrel.apk" ]; then
			subpkg_unset
			return 1
		fi
	done
	subpkg_unset
	[ -n "$keep" ] && return 0

	cd "$startdir"
	for i in $source APKBUILD; do
		if is_remote "$i"; then
			s="$SRCDEST/$(filename_from_uri $i)"
		else
			s="$startdir/${i##*/}"
		fi
		if [ "$s" -nt "$REPODEST/$repo/${pkgarch/noarch/$CARCH}/$pkgname-$pkgver-r$pkgrel.apk" ]; then
			return 1
		fi
	done
	return 0
}

abuildindex_up2date() {
	local i
	getpkgver || return 1

	for i in $allpackages; do
		subpkg_set "$i"
		local dir="$REPODEST"/$repo/${subpkgarch/noarch/$CARCH}
		local idx="$dir"/APKINDEX.tar.gz
		local file="$dir"/$subpkgname-$pkgver-r$pkgrel.apk

		# if any file is missing or .apk is newer then index
		# the index needs to be updated
		if [ ! -f "$idx" -o ! -f "$file" -o "$file" -nt "$idx" ]; then
			subpkg_unset
			return 1
		fi
	done
	subpkg_unset

	return 0
}

up2date() {
	check_arch || return 0
	check_libc || return 0
	apk_up2date && abuildindex_up2date
}

# rebuild package and abuildrepo index if needed
abuildindex() {
	up2date && return 0
	build_abuildrepo
}

# source all APKBUILDs and output:
#  1) origin of package
#  2) all dependencies
# the output is i in a format easy parseable for awk
parse_aports_makedepends() {
	# lets run this in a subshell since we source all APKBUILD here
	(
	aportsdir=$(realpath ${APKBUILD%/APKBUILD}/..)
	for i in $aportsdir/*/APKBUILD; do
		# no forks in this loop or it will be painfully slow!
		pkgname=
		subpackages=
		depends=
		makedepends=
		checkdepends=
		. $i
		dir=${i%/APKBUILD}
		deps=
		# filter out conflicts from deps and version info
		wantdepends="$depends $makedepends"
		want_check && wantdepends="$wantdepends $checkdepends"
		for j in $wantdepends; do
			case "$j" in
				!*) continue;;
			esac
			deps="$deps ${j%%[<>=]*}"
		done
		for j in $pkgname $subpackages; do
			echo "o ${j%%:*} $dir"
			set -- $deps
			if [ $# -eq 0 ]; then
				echo "d ${j%%:*}"
				continue
			fi
			echo -n "d ${j%%:*} $1"
			shift
			while [ $# -gt 0 ]; do
				echo -n ",$1"
				shift
			done
			echo
		done
	done
	)
}

trace_makedepends() {
	local deps= i=
	# strip versions from deps
	for i in "$@"; do
		deps="$deps ${i%%[<>=]*}"
	done
	[ -z "$deps" ] && return 0
	(	parse_aports_makedepends
		if [ -z "$upgrade" ]; then
			# list installed pkgs and prefix with 'i '
			$APK info --quiet | sort |  sed 's/^/i /'
		fi
	) | awk -v pkgs="$deps" '

	function depgraph(pkg,	a, i) {
		if (visited[pkg])
			return 0;
		visited[pkg] = 1;
		split(deps[pkg], a, ",");
		for (i in a)
			depgraph(a[i]);
		print pkg ":" origin[pkg];

	}

	$1 == "i" { visited[$2] = 1 }
	$1 == "o" { origin[$2] = $3 }
	$1 == "d" { deps[$2] = $3 }
	END {
		split(pkgs, pkgarray);
		for (i in pkgarray)
			depgraph(pkgarray[i]);
	}
	'
}

calcdeps() {
	builddeps=
	hostdeps=

	if cross_compiling && [ -n "$makedepends_build" -o -n "$makedepends_host" ]; then
		for i in $EXTRADEPENDS_BUILD $1 $makedepends_build; do
			list_has $i $hostdeps && continue
			builddeps="$builddeps $i"
		done
		for i in $EXTRADEPENDS_HOST $EXTRADEPENDS_TARGET $makedepends_host; do
			[ "$pkgname" = "${i%%[<>=]*}" ] && continue
			list_has $i $hostdeps && continue
			subpackages_has ${i%%[<>=]*} || hostdeps="$hostdeps $i"
		done
	else
		[ -z "$makedepends" ] && makedepends="$makedepends_build $makedepends_host"
		want_check && makedepends="$makedepends $checkdepends"
		for i in $EXTRADEPENDS_BUILD $EXTRADEPENDS_HOST $1 $depends $makedepends; do
			[ "$pkgname" = "${i%%[<>=]*}" ] && continue
			list_has $i $builddeps && continue
			subpackages_has ${i%%[<>=]*} || builddeps="$builddeps $i"
		done
		hostdeps="$EXTRADEPENDS_TARGET"
	fi
}

get_missing_deps() {
	local cmd="$APK info --quiet --installed $1"
	shift

	while [ "$1" ]; do
		local cp=${1#\!}
		if [ $cp != $1 ]; then
			if $cmd $cp; then
				error "Conflicting package installed: $cp"
				return 1
			fi
		elif [ "$upgrade" ] || ! $cmd $1; then
			echo $1
		fi
		shift
	done
}

# build and install dependencies
builddeps() {
	local pkg= i= BUILD_BASE=
	[ -n "$nodeps" ] && return 0

	msg "Analyzing dependencies..."
	case "$BOOTSTRAP" in
	no*)	BUILD_BASE="";;
	*)	if cross_creating || cross_compiling; then
			BUILD_BASE="build-base-$CTARGET_ARCH"
		else
			BUILD_BASE="build-base"
		fi
	esac
	calcdeps "$BUILD_BASE"

	# find which deps are missing
	local mbd mhd missing
	mbd=$(get_missing_deps "" $builddeps) || return 1
	mhd=$(get_missing_deps "--root $CBUILDROOT --arch $CTARGET_ARCH" $hostdeps) || return 1
	missing=$(echo $mbd $mhd)

	if [ -z "$install_deps" ] && [ -z "$recursive" ]; then
		# if we dont have any missing deps we are done now
		[ -z "$missing" ] && return 0
		error "Missing dependencies (use -r to autoinstall or -R to build them): $missing"
		return 1
	fi

	uninstall_after=".makedepends-$pkgname $uninstall_after"
	if [ -n "$install_deps" ] && [ -z "$recursive" ]; then
		# make a --simulate run first to detect missing deps
		# apk-tools --virtual is no goot at reporting those.
		deps "--quiet --simulate" || return 1
		deps || return 1
		return 0
	fi

	[ -z "$recursive" ] && return 1

	if [ -n "$CBUILDROOT" ]; then
		error "Recursive rebuilding (-R) is not supported when cross compiling."
		return 1
	fi

	# find dependencies that are installed but missing in repo.
	for i in $builddeps; do
		local m=$($APK search --repository "$REPODEST/$repo" ${i%%[<>=]*})
		if [ -z "$m" ]; then
			missing="$missing $i"
		fi
	done

	for i in $(trace_makedepends $missing); do
		# i = pkg:dir
		local dir=${i#*:}
		local pkg=${i%:*}

		# ignore if dependency is in other repo
		[ -d "$dir" ] || continue

		# check if dep is blacklisted
		if list_has $pkg $ABUILD_BLACKLIST; then
			error "$pkg is blacklisted"
			return 1
		fi

		# break circular deps
		list_has $pkg $ABUILD_VISITED && continue
		export ABUILD_VISITED="$ABUILD_VISITED $pkg"

		msg "Entering $dir"
		cd "$dir" && $0 $forceroot $keep $keep_build $quiet \
			$install_deps $recursive $upgrade $color_opt \
			abuildindex || return 1
	done
	$SUDO_APK add --upgrade --repository "$REPODEST/$repo" \
		$apk_opt_wait \
		--virtual .makedepends-$pkgname $builddeps \
		|| return 1
}

# replace the md5sums in the APKBUILD
checksum() {
	local s files
	[ -z "$source" ] && [ -n "${md5sums}${sha256sums}${sha512sums}" ] \
		&& msg "Removing checksums from APKBUILD"
	sed -i -e '/^md5sums="/,/"\$/d; /^md5sums=''/,/''\$/d' "$APKBUILD"
	sed -i -e '/^sha512sums="/,/"\$/d; /^sha512sums=''/,/''\$/d' "$APKBUILD"
	sed -i -e '/^sha256sums="/,/"\$/d; /^sha256sums=''/,/''\$/d' "$APKBUILD"
	[ -z "$source" ] && return 0
	fetch
	for s in $source; do
		files="$files $(filename_from_uri $s)"
	done

	msg "Updating the sha512sums in APKBUILD..."
	md5sums=
	sha256sums=
	sha512sums="$(cd "$srcdir" && sha512sum $files)" \
		|| die "sha512sum failed"
	echo "sha512sums=\"$sha512sums\"" >>"$APKBUILD"
}

rootbld_actions() {
	local part
	for part in symlinksrc unpack prepare build rootpkg; do
		runpart $part
	done
}

rootbld() {
	if apk_up2date && [ -z "$force" ]; then
		msg "Package is up to date"
		return
	fi

	[ "$CBUILD" = "$CHOST" ] || die "rootbld: cross-building not supported currently"
	apk info -eq abuild-rootbld || die "rootbld: abuild-rootbld package not installed"

	logcmd "chroot building building $repo/$pkgname-$pkgver-r$pkgrel"

	# check early if we have abuild key
	abuild-sign --installed

	# networking business
	sanitycheck
	clean
	fetch
	verify

	msg "Preparing build chroot..."

	mkusers

	BUILD_ROOT=$(mktemp -d /var/tmp/abuild.XXXXXXXXXX)
	local aportsgit=${APORTSDIR:-${startdir}}

	mkdir -p "$BUILD_ROOT/proc" "$BUILD_ROOT/etc/apk/keys" \
		"$BUILD_ROOT/$HOME/.abuild" "$BUILD_ROOT/$aportsgit" \
		"$BUILD_ROOT/$SRCDEST" "$BUILD_ROOT/$REPODEST" \
		"$BUILD_ROOT/tmp/pkg" "$BUILD_ROOT/tmp/src" \
		"$BUILD_ROOT/usr/bin" "$pkgbasedir" "$REPODEST" \
		"$srcdir"

	cp /etc/abuild.conf /etc/group /etc/passwd "$BUILD_ROOT/etc"
	cp /etc/apk/keys/* "$BUILD_ROOT/etc/apk/keys"

	local version="edge" buildhost="edge" gitref
	if gitref="$(expr "$(git symbolic-ref --short HEAD)" : '\([0-9]\+\(\.[0-9]\+\)*\)-')"; then
		version=v${gitref}
		buildhost=${gitref/./-}
	fi

	local repo_template=$aportsgit/$repo/.rootbld-repositories
	[ -s "$repo_template" ] || die "rootbld: $repo_template does not exist"
	(
		for key in $(git config --list --name-only); do
			k=${key#abuild.}
			[ $k != $key ] && \
				eval "export $k=\"$(git config --get $key)\""
		done

		export mirror version
		[ "$mirror" ] || mirror=http://dl-cdn.alpinelinux.org/alpine

		envsubst
		echo "$REPODEST/$repo"
	) < "$repo_template" > "$BUILD_ROOT/etc/apk/repositories"

	calcdeps
	$SUDO_APK add --initdb --root "$BUILD_ROOT" --update \
		abuild alpine-base build-base git $hostdeps $builddeps

	local bwrap_opts=""
	options_has "net" || bwrap_opts="$bwrap_opts --unshare-net"
	bwrap --unshare-ipc --unshare-uts $bwrap_opts \
		--ro-bind "$BUILD_ROOT" / \
		--proc /proc \
		--dev-bind /dev /dev \
		--ro-bind "$HOME/.abuild" "$HOME/.abuild" \
		--ro-bind "$aportsgit" "$aportsgit" \
		--bind "$SRCDEST" "$SRCDEST" \
		--bind "$BUILD_ROOT/tmp/src" "$srcdir" \
		--bind "$BUILD_ROOT/tmp/pkg" "$pkgbasedir" \
		--bind "$BUILD_ROOT/tmp" /tmp \
		--bind "$REPODEST" "$REPODEST" \
		--hostname "build-$buildhost-$CARCH" \
		--chdir "$startdir" \
		--setenv PATH /bin:/usr/bin:/sbin:/usr/sbin \
		/usr/bin/abuild $force rootbld_actions
	update_abuildrepo_index
	cleanup $CLEANUP
}

stripbin() {
	local bin
	if options_has "!strip" || [ "${subpkgarch:-$pkgarch}" = "noarch" ]; then
		return 0
	fi
	cd "${subpkgdir:-$pkgdir}" || return 1

	local stripcmd=strip
	case "${subpkgarch:-$pkgarch}" in
	$CBUILD_ARCH)	stripcmd="strip" ;;
	$CARCH)		stripcmd="${CHOST}-strip" ;;
	$CTARGET_ARCH)	stripcmd="${CTARGET}-strip" ;;
	esac

	msg "Stripping binaries"
	scanelf --recursive --nobanner --osabi --etype "ET_DYN,ET_EXEC" . \
		| while read type osabi filename; do
		[ "$osabi" != "STANDALONE" ] || continue
		local XATTR=$(getfattr --match="" --dump "${filename}")
		"${stripcmd}" "${filename}"
		if [ -n "$XATTR" ]; then
			echo "$XATTR" | setfattr --restore=-
		fi
	done
}

# simply list target apks
listpkg() {
	local name
	getpkgver || return 1
	for name in $allpackages ; do
		subpkg_set $name
		echo "$subpkgname-$pkgver-r$pkgrel.apk"
	done
	subpkg_unset
}

source_has() {
	local i
	for i in $source; do
		[ "$1" = "${i##*/}" ] && return 0
		[ "$1" = "${i%%::*}" ] && return 0
	done
	return 1
}

subpackages_has() {
	local i
	for i in $subpackages; do
		[ "$1" = "${i%%:*}" ] && return 0
	done
	return 1
}

subpackage_types_has() {
	local i
	for i in $subpackages; do
		local _name="${i%%:*}"
		[ "$1" = "${_name##*-}" ] && return 0
	done
	return 1
}

list_has() {
	local needle="$1"
	local i
	shift
	for i in $@; do
		[ "$needle" = "$i" ] && return 0
		[ "$needle" = "!$i" ] && return 1
	done
	return 1
}

# same as list_has but we filter version info
deplist_has() {
	local needle="$1"
	local i
	shift
	for i in $@; do
		i=${i%%[<>=]*}
		[ "$needle" = "$i" ] && return 0
		[ "$needle" = "!$i" ] && return 1
	done
	return 1
}

options_has() {
	list_has "$1" $options
}

depends_has() {
	deplist_has "$1" $depends
}

makedepends_has() {
	deplist_has "$1" $makedepends
}

md5sums_has() {
	list_has "$1" $md5sums
}

install_has() {
	list_has "$1" $install
}

deps() {
	[ -z "$hostdeps" -a -z "$builddeps" ] && calcdeps

	local _quiet="$1"
	[ -z "$_quiet" ] && msg "Installing for build:$builddeps"
	$SUDO_APK add $_quiet $apk_opt_wait --repository "$REPODEST/$repo" \
		--virtual .makedepends-$pkgname \
		$builddeps \
		|| return 1
	if [ -n "$CBUILDROOT" ]; then
		[ -z "$_quiet" ] && msg "Installing for host:$hostdeps"
		$SUDO_APK add $_quiet --root "$CBUILDROOT" --arch "$CTARGET_ARCH" --repository "$REPODEST/$repo" $apk_opt_wait \
			--no-scripts --virtual .makedepends-$pkgname $hostdeps || return 1
	fi
}

undeps() {
	local _quiet="$@"
	$SUDO_APK del $_quiet $apk_opt_wait .makedepends-$pkgname || :
	if [ -n "$CBUILDROOT" ]; then
		$SUDO_APK del $_quiet --root "$CBUILDROOT" --arch "$CTARGET_ARCH" $apk_opt_wait \
			--no-scripts .makedepends-$pkgname || :
	fi
}

# compat
installdeps() { deps; }
uninstalldeps() { undeps; }
index() { update_abuildrepo_index; }

all() {
	if ! [ -n "$force" ]; then
		if ! check_arch; then
			echo "Package not available for the target architecture ($CARCH). Aborting."
			return 0
		fi
		check_libc || return 0
	fi
	if up2date && [ -z "$force" ]; then
		msg "Package is up to date"
	else
		build_abuildrepo
	fi
}

# This abuild hook will checkout an svn or git repository by specifying
# $svnurl or $giturl in APKBUILD. You can checkout a specific branch in
# git by adding -b $branch in $giturl. $reporev will select the correct
# commit, revision or tag for you. If you specify $disturl your distfile
# will automatically be uploaded with rsync to the url provided.
# Base version defaults to 0 except if specified by $verbase.

snapshot() {
	# check if we setup vars correctly
	[ -z "$disturl" ] && warning "Missing disturl in APKBUILD, auto uploading disabled."
	[ -z "$svnurl" ] && [ -z "$giturl" ] && die "Missding repository url in APKBUILD!"
	[ -n "$svnurl" ] && [ -n "$giturl" ] && die "You can only use a single repository!"
	local _date=$(date +%Y%m%d)
	local _format="tar.gz"
	# remove any repositories left in srcdir
	abuild clean
	mkdir -p "$srcdir" && cd "$srcdir"
	# clone git repo and archive
	if [ -n "$giturl" ]; then
		local _version=${verbase:-0}_git${_date}
		command -v git >/dev/null || \
			die "Missing git! Install git to support git clone."
		local _rev="${reporev:-HEAD}"
		[ "$_rev" = "HEAD" ] && local _depth="--depth=1"
		msg "Creating git snapshot: $pkgname-$_version"
		git clone $_depth --bare $giturl $pkgname-$_version || return 1
		git --git-dir $pkgname-$_version archive \
			--format=$_format \
			-o $pkgname-$_version.$_format \
			--prefix=$pkgname-$_version/ $_rev \
			|| return 1
	fi
	# export svn repo and archive
	if [ -n "$svnurl" ]; then
		local _version=${verbase:-0}_svn${_date}
		command -v svn >/dev/null || \
			die "Missing svn! Install subverion to support svn export."
		[ -n "$reporev" ] && local _rev="-r $reporev"
		msg "Creating svn snapshot: $pkgname-$_version"
		svn co $_rev $svnurl $pkgname-$_version || return 1
		tar zcf $pkgname-$_version.$_format $pkgname-$_version || return 1
	fi
	# upload to defined distfiles url
	if [ -n "$disturl" ]; then
		command -v rsync >/dev/null || \
			die "Missing rsync! Install rsync to enable automatic uploads."
		msg "Uploading to $disturl"
		rsync --progress -La $pkgname-$_version.$_format \
			$disturl || return 1
		cd "$startdir"
		# set the pkgver to current date and update checksum
		sed -i -e "s/^pkgver=.*/pkgver=${_version}/" \
			APKBUILD || return 1
		abuild checksum
	fi
}

usage() {
	cat <<-EOF
		usage: $program [options] [-P REPODEST] [-s SRCDEST] [-D DESCRIPTION] [cmd] ...
		       $program [-c] -n PKGNAME[-PKGVER]
		Options:
		 -A  Print CARCH and exit
		 -c  Enable colored output
		 -d  Disable dependency checking
		 -D  Set APKINDEX description (default: \$repo \$(git describe))
		 -f  Force specified cmd, even if they are already done
		 -F  Force run as root
		 -h  Show this help
		 -i  Install PKG after successful build
		 -k  Keep built packages, even if APKBUILD or sources are newer
		 -K  Keep buildtime temp dirs and files (srcdir/pkgdir/deps)
		 -m  Disable colors (monochrome)
		 -P  Set REPODEST as the repository location for created packages
		 -q  Quiet
		 -r  Install missing dependencies from system repository (using sudo)
		 -R  Recursively build and install missing dependencies (using sudo)
		 -s  Set source package destination directory
		 -u  Recursively build and upgrade all dependencies (using sudo)
		 -v  Verbose: show every command as it is run (very noisy)

		Commands:
		  build       Compile and install package into \$pkgdir
		  check       Run any defined tests concerning the package
		  checksum    Generate checksum to be included in APKBUILD
		  clean       Remove temp build and install dirs
		  cleancache  Remove downloaded files from \$SRCDEST
		  cleanoldpkg Remove binary packages except current version
		  cleanpkg    Remove already built binary and source package
		  deps        Install packages listed in makedepends and depends
		  fetch       Fetch sources to \$SRCDEST and verify checksums
		  index       Regenerate indexes in \$REPODEST
		  listpkg     List target packages
		  package     Create package in \$REPODEST
		  prepare     Apply patches
		  rootbld     Build package in clean chroot
		  rootpkg     Run 'package', the split functions and create apks as fakeroot
		  sanitycheck Basic sanity check of APKBUILD
		  snapshot    Create a \$giturl or \$svnurl snapshot and upload to \$disturl
		  sourcecheck Check if remote source package exists upstream
		  srcpkg      Make a source package
		  undeps      Uninstall packages listed in makedepends and depends
		  unpack      Unpack sources to \$srcdir
		  up2date     Compare target and sources dates
		  verify      Verify checksums

		To activate cross compilation specify in environment:
		  CHOST       Arch or hostspec of machine to generate packages for
		  CTARGET     Arch or hostspec of machine to generate compiler for

	EOF
	exit 0
}

APKBUILD="${APKBUILD:-./APKBUILD}"
unset force
unset recursive
while getopts "AcdD:fFhkKimnp:P:qrRs:uv" opt; do
	case $opt in
		'A') echo "$CARCH"; exit 0;;
		'c') enable_colors
		     color_opt="-c";;
		'd') nodeps="-d";;
		'D') DESCRIPTION=$OPTARG;;
		'f') force="-f";;
		'F') forceroot="-F";;
		'h') usage;;
		'k') keep="-k";;
		'K') keep_build="-K";;
		'm') disable_colors
		     color_opt="-m";;
		'n') die "Use newapkbuild to create new aports";;
		'P') REPODEST=$OPTARG;;
		'q') quiet="-q";;
		'r') install_deps="-r";;
		'R') recursive="-R";;
		's') SRCDEST=$OPTARG;;
		'u') upgrade="-u"
		     recursive="-R";;
		'v') set -x;;
	esac
done
shift $(( $OPTIND - 1 ))

# check so we are not root
if [ $(id -u) -eq 0 ] && [ -z "$FAKEROOTKEY" ]; then
	[ -z "$forceroot" ] && die "Do not run abuild as root"
	FAKEROOT=
fi

# find startdir
[ -f "$APKBUILD" ] || die "Could not find $APKBUILD (PWD=$PWD)"
APKBUILD=$(readlink -f "$APKBUILD")

startdir="${APKBUILD%/*}"
srcdir=${srcdir:-"$startdir/src"}
pkgbasedir=${pkgbasedir:-"$startdir/pkg"}

repo=${startdir%/*}
repo=${repo##*/}

SRCDEST=${SRCDEST:-$startdir}

BUILD_ROOT=

# set a default CC
: ${CC:=gcc}
export CC

cd "$startdir" || die
. "$APKBUILD"

builddir=${builddir:-"$srcdir/$pkgname-$pkgver"}

# If REPODEST is set then it will override the PKGDEST
if [ -z "$REPODEST" ]; then
	warning "REPODEST is not set and is now required. Defaulting to ~/packages"
	[ -n "$PKGDEST" ] && die "PKGDEST is no longer supported."
	REPODEST="~/packages"
fi

# for recursive action
export REPODEST SRCDEST

# add dbg subpackage if its enabled globally
if [ -n "$DEFAULT_DBG" ] && ! subpackage_types_has "dbg" && ! options_has "!dbg" && [ "$arch" != "noarch" ]; then
        subpackages="$pkgname-dbg $subpackages"
fi

# if we want build debug package
if [ -n "$DEBUG" ] || subpackage_types_has "dbg"; then
	CFLAGS="$CFLAGS -g"
	CXXFLAGS="$CXXFLAGS -g"
	options="$options !strip"
fi

if [ -n "$subpkgname" ]; then
	# If we are handling a sub package then reset subpackages and install
	origsubpackages="$subpackages"
	subpackages=
else
	allpackages="$pkgname $subpackages"
	for i in $linguas; do
		allpackages="$allpackages $pkgname-lang-$i::noarch"
	done
fi
apkbuild_arch="$arch"
pkgdir="$pkgbasedir/$pkgname"
if [ -z "$pkgarch" ]; then
	pkgarch=$CARCH
	list_has noarch $arch && pkgarch=noarch
fi
controldir="$pkgbasedir"/.control.${subpkgname:-$pkgname}

trap 'die "Aborted by user"' INT

[ -z "$subpkgdir" ] && set_xterm_title "abuild${CROSS_COMPILE+-$CARCH}: $pkgname"

if [ -z "$1" ]; then
	set all
fi

while [ $# -gt 0 ]; do
	runpart $1
	shift
done

cleanup