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
| | ;;; project.el --- Operations on the current project -*- lexical-binding: t; -*-
;; Copyright (C) 2015-2023 Free Software Foundation, Inc.
;; Version: 0.10.0
;; Package-Requires: ((emacs "26.1") (xref "1.4.0"))
;; This is a GNU ELPA :core package. Avoid functionality that is not
;; compatible with the version of Emacs recorded above.
;; This file is part of GNU Emacs.
;; GNU Emacs 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 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file contains generic infrastructure for dealing with
;; projects, some utility functions, and commands using that
;; infrastructure.
;;
;; The goal is to make it easier for Lisp programs to operate on the
;; current project, without having to know which package handles
;; detection of that project type, parsing its config files, etc.
;;
;; This file consists of following parts:
;;
;; Infrastructure (the public API):
;;
;; Function `project-current' that returns the current project
;; instance based on the value of the hook `project-find-functions',
;; and several generic functions that act on it.
;;
;; `project-root' must be defined for every project.
;; `project-files' can be overridden for performance purposes.
;; `project-ignores' and `project-external-roots' describe the project
;; files and its relations to external directories. `project-files'
;; should be consistent with `project-ignores'.
;;
;; `project-buffers' can be overridden if the project has some unusual
;; shape (e.g. it contains files residing outside of its root, or some
;; files inside the root must not be considered a part of it). It
;; should be consistent with `project-files'.
;;
;; This list can change in future versions.
;;
;; Transient project:
;;
;; An instance of this type can be returned by `project-current' if no
;; project was detected automatically, and the user had to pick a
;; directory manually. The fileset it describes is the whole
;; directory, with the exception of some standard ignored files and
;; directories. This type has little purpose otherwise, as the only
;; generic function it provides an override for is `project-root'.
;;
;; VC-aware project:
;;
;; Originally conceived as an example implementation, now it's a
;; relatively fast backend that delegates to 'git ls-files' or 'hg
;; status' to list the project's files. It honors the VC ignore
;; files, but supports additions to the list using the user option
;; `project-vc-ignores' (usually through .dir-locals.el). See the
;; customization group `project-vc' for other options that control its
;; behavior.
;;
;; If the repository is using any other VCS than Git or Hg, the file
;; listing uses the default mechanism based on `find-program'.
;;
;; This project type can also be used for non-VCS controlled
;; directories, see the variable `project-vc-extra-root-markers'.
;;
;; Utils:
;;
;; `project-combine-directories' and `project-subtract-directories',
;; mainly for use in the abovementioned generics' implementations.
;;
;; `project-known-project-roots' and `project-remember-project' to
;; interact with the "known projects" list.
;;
;; Commands:
;;
;; `project-prefix-map' contains the full list of commands defined in
;; this package. This map uses the prefix `C-x p' by default.
;; Type `C-x p f' to find file in the current project.
;; Type `C-x p C-h' to see all available commands and bindings.
;;
;; All commands defined in this package are implemented using the
;; public API only. As a result, they will work with any project
;; backend that follows the protocol.
;;
;; Any third-party code that wants to use this package should likewise
;; target the public API. Use any of the built-in commands as the
;; example.
;;
;; How to create a new backend:
;;
;; - Consider whether you really should, or whether there are other
;; ways to reach your goals. If the backend's performance is
;; significantly lower than that of the built-in one, and it's first
;; in the list, it will affect all commands that use it. Unless you
;; are going to be using it only yourself or in special circumstances,
;; you will probably want it to be fast, and it's unlikely to be a
;; trivial endeavor. `project-files' is the method to optimize (the
;; default implementation gets slower the more files the directory
;; has, and the longer the list of ignores is).
;;
;; - Choose the format of the value that represents a project for your
;; backend (we call it project instance). Don't use any of the
;; formats from other backends. The format can be arbitrary, as long
;; as the datatype is something `cl-defmethod' can dispatch on. The
;; value should be stable (when compared with `equal') across
;; invocations, meaning calls to that function from buffers belonging
;; to the same project should return equal values.
;;
;; - Write a new function that will determine the current project
;; based on the directory and add it to `project-find-functions'
;; (which see) using `add-hook'. It is a good idea to depend on the
;; directory only, and not on the current major mode, for example.
;; Because the usual expectation is that all files in the directory
;; belong to the same project (even if some/most of them are ignored).
;;
;; - Define new methods for some or all generic functions for this
;; backend using `cl-defmethod'. A `project-root' method is
;; mandatory, `project-files' is recommended, the rest are optional.
;;; TODO:
;; * Reliably cache the list of files in the project, probably using
;; filenotify.el (if supported) to invalidate. And avoiding caching
;; if it's not available (manual cache invalidation is not nice).
;;
;; * Build tool related functionality. Start with a `project-build'
;; command, which should provide completions on tasks to run, and
;; maybe allow entering some additional arguments. This might
;; be handled better with a separate API, though. Then we won't
;; force every project backend to be aware of the build tool(s) the
;; project is using.
;;
;; * Command to (re)build the tag files in all project roots. To that
;; end, we might need to add a way to provide file whitelist
;; wildcards for each root to limit etags to certain files (in
;; addition to the blacklist provided by ignores), and/or allow
;; specifying additional tag regexps.
;;
;; * UI for the user to be able to pick the current project for the
;; whole Emacs session, independent of the current directory. Or,
;; in the more advanced case, open a set of projects, and have some
;; project-related commands to use them all. E.g., have a command
;; to search for a regexp across all open projects.
;;
;; * Support for project-local variables: a UI to edit them, and a
;; utility function to retrieve a value. Probably useless without
;; support in various built-in commands. In the API, we might get
;; away with only adding a `project-configuration-directory' method,
;; defaulting to the project root the current file/buffer is in.
;; And prompting otherwise. How to best mix that with backends that
;; want to set/provide certain variables themselves, is up for
;; discussion.
;;; Code:
(require 'cl-generic)
(require 'cl-lib)
(require 'seq)
(eval-when-compile (require 'subr-x))
(defgroup project nil
"Operations on the current project."
:version "28.1"
:group 'tools)
(defvar project-find-functions (list #'project-try-vc)
"Special hook to find the project containing a given directory.
Each functions on this hook is called in turn with one
argument, the directory in which to look, and should return
either nil to mean that it is not applicable, or a project instance.
The exact form of the project instance is up to each respective
function; the only practical limitation is to use values that
`cl-defmethod' can dispatch on, like a cons cell, or a list, or a
CL struct.")
(define-obsolete-variable-alias
'project-current-inhibit-prompt
'project-current-directory-override
"29.1")
(defvar project-current-directory-override nil
"Value to use instead of `default-directory' when detecting the project.
When it is non-nil, `project-current' will always skip prompting too.")
(defcustom project-prompter #'project-prompt-project-dir
"Function to call to prompt for a project.
Called with no arguments and should return a project root dir."
:type '(choice (const :tag "Prompt for a project directory"
project-prompt-project-dir)
(const :tag "Prompt for a project name"
project-prompt-project-name)
(function :tag "Custom function" nil))
:group 'project
:version "30.1")
;;;###autoload
(defun project-current (&optional maybe-prompt directory)
"Return the project instance in DIRECTORY, defaulting to `default-directory'.
When no project is found in that directory, the result depends on
the value of MAYBE-PROMPT: if it is nil or omitted, return nil,
else prompt the user for the project to use. To prompt for a
project, call the function specified by `project-prompter', which
returns the directory in which to look for the project. If no
project is found in that directory, return a \"transient\"
project instance.
The \"transient\" project instance is a special kind of value
which denotes a project rooted in that directory and includes all
the files under the directory except for those that match entries
in `vc-directory-exclusion-list' or `grep-find-ignored-files'.
See the doc string of `project-find-functions' for the general form
of the project instance object."
(unless directory (setq directory (or project-current-directory-override
default-directory)))
(let ((pr (project--find-in-directory directory)))
(cond
(pr)
((unless project-current-directory-override
maybe-prompt)
(setq directory (funcall project-prompter)
pr (project--find-in-directory directory))))
(when maybe-prompt
(if pr
(project-remember-project pr)
(project--remove-from-project-list
directory "Project `%s' not found; removed from list")
(setq pr (cons 'transient directory))))
pr))
(defun project--find-in-directory (dir)
(run-hook-with-args-until-success 'project-find-functions dir))
(defvar project--within-roots-fallback nil)
(cl-defgeneric project-root (project)
"Return root directory of the current project.
It usually contains the main build file, dependencies
configuration file, etc. Though neither is mandatory.
The directory name must be absolute.")
(cl-defmethod project-root (project
&context (project--within-roots-fallback
(eql nil)))
(car (project-roots project)))
(cl-defgeneric project-roots (project)
"Return the list containing the current project root.
The function is obsolete, all projects have one main root anyway,
and the rest should be possible to express through
`project-external-roots'."
;; FIXME: Can we specify project's version here?
;; FIXME: Could we make this affect cl-defmethod calls too?
(declare (obsolete project-root "0.3.0"))
(let ((project--within-roots-fallback t))
(list (project-root project))))
;; FIXME: Add MODE argument, like in `ede-source-paths'?
(cl-defgeneric project-external-roots (_project)
"Return the list of external roots for PROJECT.
It's the list of directories outside of the project that are
still related to it. If the project deals with source code then,
depending on the languages used, this list should include the
headers search path, load path, class path, and so on."
nil)
(cl-defgeneric project-name (project)
"A human-readable name for the project.
Nominally unique, but not enforced."
(file-name-nondirectory (directory-file-name (project-root project))))
(cl-defgeneric project-ignores (_project _dir)
"Return the list of glob patterns to ignore inside DIR.
Patterns can match both regular files and directories.
To root an entry, start it with `./'. To match directories only,
end it with `/'. DIR must be either `project-root' or one of
`project-external-roots'."
;; TODO: Document and support regexp ignores as used by Hg.
;; TODO: Support whitelist entries.
(require 'grep)
(defvar grep-find-ignored-files)
(nconc
(mapcar
(lambda (dir)
(concat dir "/"))
vc-directory-exclusion-list)
grep-find-ignored-files))
(defun project--file-completion-table (all-files)
(lambda (string pred action)
(cond
((eq action 'metadata)
'(metadata . ((category . project-file))))
(t
(complete-with-action action all-files string pred)))))
(cl-defmethod project-root ((project (head transient)))
(cdr project))
(cl-defgeneric project-files (project &optional dirs)
"Return a list of files in directories DIRS in PROJECT.
DIRS is a list of absolute directories; it should be some
subset of the project root and external roots.
The default implementation uses `find-program'. PROJECT is used
to find the list of ignores for each directory."
(mapcan
(lambda (dir)
(project--files-in-directory dir
(project--dir-ignores project dir)))
(or dirs
(list (project-root project)))))
(defun project--files-in-directory (dir ignores &optional files)
(require 'find-dired)
(require 'xref)
(let* ((default-directory dir)
;; Make sure ~/ etc. in local directory name is
;; expanded and not left for the shell command
;; to interpret.
(localdir (file-name-unquote (file-local-name (expand-file-name dir))))
(dfn (directory-file-name localdir))
(command (format "%s -H . %s -type f %s -print0"
find-program
(xref--find-ignores-arguments ignores "./")
(if files
(concat (shell-quote-argument "(")
" -name "
(mapconcat
#'shell-quote-argument
(split-string files)
(concat " -o -name "))
" "
(shell-quote-argument ")"))
"")))
res)
(with-temp-buffer
(let ((status
(process-file-shell-command command nil t))
(pt (point-min)))
(unless (zerop status)
(goto-char (point-min))
(if (and
(not (eql status 127))
(search-forward "Permission denied\n" nil t))
(let ((end (1- (point))))
(re-search-backward "\\`\\|\0")
(error "File listing failed: %s"
(buffer-substring (1+ (point)) end)))
(error "File listing failed: %s" (buffer-string))))
(goto-char pt)
(while (search-forward "\0" nil t)
(push (buffer-substring-no-properties (1+ pt) (1- (point)))
res)
(setq pt (point)))))
(project--remote-file-names
(mapcar (lambda (s) (concat dfn s))
(sort res #'string<)))))
(defun project--remote-file-names (local-files)
"Return LOCAL-FILES as if they were on the system of `default-directory'.
Also quote LOCAL-FILES if `default-directory' is quoted."
(let ((remote-id (file-remote-p default-directory)))
(if (not remote-id)
(if (file-name-quoted-p default-directory)
(mapcar #'file-name-quote local-files)
local-files)
(mapcar (lambda (file)
(concat remote-id file))
local-files))))
(cl-defgeneric project-buffers (project)
"Return the list of all live buffers that belong to PROJECT.
The default implementation matches each buffer to PROJECT root using
the buffer's value of `default-directory'."
(let ((root (expand-file-name (file-name-as-directory (project-root project))))
bufs)
(dolist (buf (buffer-list))
(when (string-prefix-p root (expand-file-name
(buffer-local-value 'default-directory buf)))
(push buf bufs)))
(nreverse bufs)))
(defgroup project-vc nil
"VC-aware project implementation."
:version "25.1"
:group 'project)
(defcustom project-vc-ignores nil
"List of patterns to add to `project-ignores'."
:type '(repeat string))
;; Change to `list-of-strings-p' when support for Emacs 28 is dropped.
;;;###autoload(put 'project-vc-ignores 'safe-local-variable (lambda (val) (and (listp val) (not (memq nil (mapcar #'stringp val))))))
(defcustom project-vc-merge-submodules t
"Non-nil to consider submodules part of the parent project.
After changing this variable (using Customize or .dir-locals.el)
you might have to restart Emacs to see the effect."
:type 'boolean
:version "28.1"
:package-version '(project . "0.2.0"))
;;;###autoload(put 'project-vc-merge-submodules 'safe-local-variable #'booleanp)
(defcustom project-vc-include-untracked t
"When non-nil, the VC-aware project backend includes untracked files."
:type 'boolean
:version "29.1")
;;;###autoload(put 'project-vc-include-untracked 'safe-local-variable #'booleanp)
(defcustom project-vc-name nil
"When non-nil, the name of the current VC-aware project.
The best way to change the value a VC-aware project reports as
its name, is by setting this in .dir-locals.el."
:type '(choice (const :tag "Default to the base name" nil)
(string :tag "Custom name"))
:version "29.1"
:package-version '(project . "0.9.0"))
;;;###autoload(put 'project-vc-name 'safe-local-variable #'stringp)
;; Not using regexps because these wouldn't work in Git pathspecs, in
;; case we decide we need to be able to list nested projects.
(defcustom project-vc-extra-root-markers nil
"List of additional markers to signal project roots.
A marker is either a base file name or a glob pattern for such.
A directory containing such a marker file or a file matching a
marker pattern will be recognized as the root of a VC-aware
project.
Example values: \".dir-locals.el\", \"package.json\", \"pom.xml\",
\"requirements.txt\", \"Gemfile\", \"*.gemspec\", \"autogen.sh\".
These will be used in addition to regular directory markers such
as \".git\", \".hg\", and so on, depending on the value of
`vc-handled-backends'. It is most useful when a project has
subdirectories inside it that need to be considered as separate
projects. It can also be used for projects outside of VC
repositories.
In either case, their behavior will still obey the relevant
variables, such as `project-vc-ignores' or `project-vc-name'."
:type '(repeat string)
:version "29.1"
:package-version '(project . "0.9.0"))
;; Change to `list-of-strings-p' when support for Emacs 28 is dropped.
;;;###autoload(put 'project-vc-extra-root-markers 'safe-local-variable (lambda (val) (and (listp val) (not (memq nil (mapcar #'stringp val))))))
;; FIXME: Using the current approach, major modes are supposed to set
;; this variable to a buffer-local value. So we don't have access to
;; the "external roots" of language A from buffers of language B, which
;; seems desirable in multi-language projects, at least for some
;; potential uses, like "jump to a file in project or external dirs".
;;
;; We could add a second argument to this function: a file extension,
;; or a language name. Some projects will know the set of languages
;; used in them; for others, like the VC-aware type, we'll need
;; auto-detection. I see two options:
;;
;; - That could be implemented as a separate second hook, with a
;; list of functions that return file extensions.
;;
;; - This variable will be turned into a hook with "append" semantics,
;; and each function in it will perform auto-detection when passed
;; nil instead of an actual file extension. Then this hook will, in
;; general, be modified globally, and not from major mode functions.
;;
;; The second option seems simpler, but the first one has the
;; advantage that the user could override the list of languages used
;; in a project via a directory-local variable, thus skipping
;; languages they're not working on personally (in a big project), or
;; working around problems in language detection (the detection logic
;; might be imperfect for the project in question, or it might work
;; too slowly for the user's taste).
(defvar project-vc-external-roots-function (lambda () tags-table-list)
"Function that returns a list of external roots.
It should return a list of directory roots that contain source
files related to the current buffer.
The directory names should be absolute. Used in the VC-aware
project backend implementation of `project-external-roots'.")
(defvar project-vc-backend-markers-alist
`((Git . ".git")
(Hg . ".hg")
(Bzr . ".bzr")
;; See the comment above `vc-svn-admin-directory' for why we're
;; duplicating the definition.
(SVN . ,(if (and (memq system-type '(cygwin windows-nt ms-dos))
(getenv "SVN_ASP_DOT_NET_HACK"))
"_svn"
".svn"))
(DARCS . "_darcs")
(Fossil . ".fslckout")
(Got . ".got"))
"Associative list assigning root markers to VC backend symbols.
See `project-vc-extra-root-markers' for the marker value format.")
(defun project-try-vc (dir)
;; FIXME: Learn to invalidate when the value of
;; `project-vc-merge-submodules' or `project-vc-extra-root-markers'
;; changes.
(or (vc-file-getprop dir 'project-vc)
(let* ((backend-markers
(delete
nil
(mapcar
(lambda (b) (assoc-default b project-vc-backend-markers-alist))
vc-handled-backends)))
(marker-re
(concat
"\\`"
(mapconcat
(lambda (m) (format "\\(%s\\)" (wildcard-to-regexp m)))
(append backend-markers
(project--value-in-dir 'project-vc-extra-root-markers dir))
"\\|")
"\\'"))
(locate-dominating-stop-dir-regexp
(or vc-ignore-dir-regexp locate-dominating-stop-dir-regexp))
last-matches
(root
(locate-dominating-file
dir
(lambda (d)
;; Maybe limit count to 100 when we can drop Emacs < 28.
(setq last-matches
(condition-case nil
(directory-files d nil marker-re t)
(file-missing nil))))))
(backend
(cl-find-if
(lambda (b)
(member (assoc-default b project-vc-backend-markers-alist)
last-matches))
vc-handled-backends))
project)
(when (and
(eq backend 'Git)
(project--vc-merge-submodules-p root)
(project--submodule-p root))
(let* ((parent (file-name-directory (directory-file-name root))))
(setq root (vc-call-backend 'Git 'root parent))))
(when root
(when (not backend)
(let* ((project-vc-extra-root-markers nil)
;; Avoid submodules scan.
(enable-dir-local-variables nil)
(parent (project-try-vc root)))
(and parent (setq backend (nth 1 parent)))))
(setq project (list 'vc backend root))
;; FIXME: Cache for a shorter time.
(vc-file-setprop dir 'project-vc project)
project))))
(defun project--submodule-p (root)
;; XXX: We only support Git submodules for now.
;;
;; For submodules, at least, we expect the users to prefer them to
;; be considered part of the parent project. For those who don't,
;; there is the custom var now.
;;
;; Some users may also set up things equivalent to Git submodules
;; using "git worktree" (for example). However, we expect that most
;; of them would prefer to treat those as separate projects anyway.
(let* ((gitfile (expand-file-name ".git" root)))
(cond
((file-directory-p gitfile)
nil)
((with-temp-buffer
(insert-file-contents gitfile)
(goto-char (point-min))
;; Kind of a hack to distinguish a submodule from
;; other cases of .git files pointing elsewhere.
(looking-at "gitdir: [./]+/\\.git/modules/"))
t)
(t nil))))
(cl-defmethod project-root ((project (head vc)))
(nth 2 project))
(cl-defmethod project-external-roots ((project (head vc)))
(project-subtract-directories
(project-combine-directories
(mapcar
#'file-name-as-directory
(funcall project-vc-external-roots-function)))
(list (project-root project))))
(cl-defmethod project-files ((project (head vc)) &optional dirs)
(mapcan
(lambda (dir)
(let ((ignores (project--value-in-dir 'project-vc-ignores (nth 2 project)))
(backend (cadr project)))
(when backend
(require (intern (concat "vc-" (downcase (symbol-name backend))))))
(if (and (file-equal-p dir (nth 2 project))
(cond
((eq backend 'Hg))
((and (eq backend 'Git)
(or
(not ignores)
(version<= "1.9" (vc-git--program-version)))))))
(project--vc-list-files dir backend ignores)
(project--files-in-directory
dir
(project--dir-ignores project dir)))))
(or dirs
(list (project-root project)))))
(declare-function vc-git--program-version "vc-git")
(declare-function vc-git--run-command-string "vc-git")
(declare-function vc-hg-command "vc-hg")
(defun project--vc-list-files (dir backend extra-ignores)
(defvar vc-git-use-literal-pathspecs)
(pcase backend
(`Git
(let* ((default-directory (expand-file-name (file-name-as-directory dir)))
(args '("-z"))
(vc-git-use-literal-pathspecs nil)
(include-untracked (project--value-in-dir
'project-vc-include-untracked
dir))
files)
(setq args (append args
'("-c" "--exclude-standard")
(and include-untracked '("-o"))))
(when extra-ignores
(setq args (append args
(cons "--"
(mapcar
(lambda (i)
(format
":(exclude,glob,top)%s"
(if (string-match "\\*\\*" i)
;; Looks like pathspec glob
;; format already.
i
(if (string-match "\\./" i)
;; ./abc -> abc
(setq i (substring i 2))
;; abc -> **/abc
(setq i (concat "**/" i))
;; FIXME: '**/abc' should also
;; match a directory with that
;; name, but doesn't (git 2.25.1).
;; Maybe we should replace
;; such entries with two.
(if (string-match "/\\'" i)
;; abc/ -> abc/**
(setq i (concat i "**"))))
i)))
extra-ignores)))))
(setq files
(mapcar
(lambda (file) (concat default-directory file))
(split-string
(apply #'vc-git--run-command-string nil "ls-files" args)
"\0" t)))
(when (project--vc-merge-submodules-p default-directory)
;; Unfortunately, 'ls-files --recurse-submodules' conflicts with '-o'.
(let* ((submodules (project--git-submodules))
(sub-files
(mapcar
(lambda (module)
(when (file-directory-p module)
(project--vc-list-files
(concat default-directory module)
backend
extra-ignores)))
submodules)))
(setq files
(apply #'nconc files sub-files))))
;; 'git ls-files' returns duplicate entries for merge conflicts.
;; XXX: Better solutions welcome, but this seems cheap enough.
(delete-consecutive-dups files)))
(`Hg
(let* ((default-directory (expand-file-name (file-name-as-directory dir)))
(include-untracked (project--value-in-dir
'project-vc-include-untracked
dir))
(args (list (concat "-mcard" (and include-untracked "u"))
"--no-status"
"-0")))
(when extra-ignores
(setq args (nconc args
(mapcan
(lambda (i)
(list "--exclude" i))
extra-ignores))))
(with-temp-buffer
(apply #'vc-hg-command t 0 "." "status" args)
(mapcar
(lambda (s) (concat default-directory s))
(split-string (buffer-string) "\0" t)))))))
(defun project--vc-merge-submodules-p (dir)
(project--value-in-dir
'project-vc-merge-submodules
dir))
(defun project--git-submodules ()
;; 'git submodule foreach' is much slower.
(condition-case nil
(with-temp-buffer
(insert-file-contents ".gitmodules")
(let (res)
(goto-char (point-min))
(while (re-search-forward "^[ \t]*path *= *\\(.+\\)" nil t)
(push (match-string 1) res))
(nreverse res)))
(file-missing nil)))
(cl-defmethod project-ignores ((project (head vc)) dir)
(let* ((root (nth 2 project))
(backend (cadr project)))
(append
(when (and backend
(file-equal-p dir root))
(delq
nil
(mapcar
(lambda (entry)
(cond
((eq ?! (aref entry 0))
;; No support for whitelisting (yet).
nil)
((string-match "\\(/\\)[^/]" entry)
;; FIXME: This seems to be Git-specific.
;; And / in the entry (start or even the middle) means
;; the pattern is "rooted". Or actually it is then
;; relative to its respective .gitignore (of which there
;; could be several), but we only support .gitignore at
;; the root.
(if (= (match-beginning 0) 0)
(replace-match "./" t t entry 1)
(concat "./" entry)))
(t entry)))
(condition-case nil
(vc-call-backend backend 'ignore-completion-table root)
(vc-not-supported () nil)))))
(project--value-in-dir 'project-vc-ignores root)
(mapcar
(lambda (dir)
(concat dir "/"))
vc-directory-exclusion-list))))
(defun project-combine-directories (&rest lists-of-dirs)
"Return a sorted and culled list of directory names.
Appends the elements of LISTS-OF-DIRS together, removes
non-existing directories, as well as directories a parent of
whose is already in the list."
(let* ((dirs (sort
(mapcar
(lambda (dir)
(file-name-as-directory (expand-file-name dir)))
(apply #'append lists-of-dirs))
#'string<))
(ref dirs))
;; Delete subdirectories from the list.
(while (cdr ref)
(if (string-prefix-p (car ref) (cadr ref))
(setcdr ref (cddr ref))
(setq ref (cdr ref))))
(cl-delete-if-not #'file-exists-p dirs)))
(defun project-subtract-directories (files dirs)
"Return a list of elements from FILES that are outside of DIRS.
DIRS must contain directory names."
;; Sidestep the issue of expanded/abbreviated file names here.
(cl-set-difference files dirs :test #'file-in-directory-p))
(defun project--value-in-dir (var dir)
(with-temp-buffer
(setq default-directory dir)
(let ((enable-local-variables :all))
(hack-dir-local-variables-non-file-buffer))
(symbol-value var)))
(cl-defmethod project-buffers ((project (head vc)))
(let* ((root (expand-file-name (file-name-as-directory (project-root project))))
(modules (unless (or (project--vc-merge-submodules-p root)
(project--submodule-p root))
(mapcar
(lambda (m) (format "%s%s/" root m))
(project--git-submodules))))
dd
bufs)
(dolist (buf (buffer-list))
(setq dd (expand-file-name (buffer-local-value 'default-directory buf)))
(when (and (string-prefix-p root dd)
(not (cl-find-if (lambda (module) (string-prefix-p module dd))
modules)))
(push buf bufs)))
(nreverse bufs)))
(cl-defmethod project-name ((project (head vc)))
(or (project--value-in-dir 'project-vc-name (project-root project))
(cl-call-next-method)))
\f
;;; Project commands
;;;###autoload
(defvar project-prefix-map
(let ((map (make-sparse-keymap)))
(define-key map "!" 'project-shell-command)
(define-key map "&" 'project-async-shell-command)
(define-key map "f" 'project-find-file)
(define-key map "F" 'project-or-external-find-file)
(define-key map "b" 'project-switch-to-buffer)
(define-key map "s" 'project-shell)
(define-key map "d" 'project-find-dir)
(define-key map "D" 'project-dired)
(define-key map "v" 'project-vc-dir)
(define-key map "c" 'project-compile)
(define-key map "e" 'project-eshell)
(define-key map "k" 'project-kill-buffers)
(define-key map "p" 'project-switch-project)
(define-key map "g" 'project-find-regexp)
(define-key map "G" 'project-or-external-find-regexp)
(define-key map "r" 'project-query-replace-regexp)
(define-key map "x" 'project-execute-extended-command)
(define-key map "\C-b" 'project-list-buffers)
map)
"Keymap for project commands.")
;;;###autoload (define-key ctl-x-map "p" project-prefix-map)
;; We can't have these place-specific maps inherit from
;; project-prefix-map because project--other-place-command needs to
;; know which map the key binding came from, as if it came from one of
;; these maps, we don't want to set display-buffer-overriding-action
(defvar project-other-window-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-o" #'project-display-buffer)
map)
"Keymap for project commands that display buffers in other windows.")
(defvar project-other-frame-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-o" #'project-display-buffer-other-frame)
map)
"Keymap for project commands that display buffers in other frames.")
(defun project--other-place-command (action &optional map)
(let* ((key (read-key-sequence-vector nil t))
(place-cmd (lookup-key map key))
(generic-cmd (lookup-key project-prefix-map key))
(switch-to-buffer-obey-display-actions t)
(display-buffer-overriding-action (unless place-cmd action)))
(if-let ((cmd (or place-cmd generic-cmd)))
(call-interactively cmd)
(user-error "%s is undefined" (key-description key)))))
(defun project--other-place-prefix (place &optional extra-keymap)
(cl-assert (member place '(window frame tab)))
(prefix-command-preserve-state)
(let ((inhibit-message t)) (funcall (intern (format "other-%s-prefix" place))))
(message "Display next project command buffer in a new %s..." place)
;; Should return exitfun from set-transient-map
(set-transient-map (if extra-keymap
(make-composed-keymap project-prefix-map
extra-keymap)
project-prefix-map)))
;;;###autoload
(defun project-other-window-command ()
"Run project command, displaying resultant buffer in another window.
The following commands are available:
\\{project-prefix-map}
\\{project-other-window-map}"
(interactive)
(if (< emacs-major-version 30)
(project--other-place-command '((display-buffer-pop-up-window)
(inhibit-same-window . t))
project-other-window-map)
(project--other-place-prefix 'window project-other-window-map)))
;;;###autoload (define-key ctl-x-4-map "p" #'project-other-window-command)
;;;###autoload
(defun project-other-frame-command ()
"Run project command, displaying resultant buffer in another frame.
The following commands are available:
\\{project-prefix-map}
\\{project-other-frame-map}"
(interactive)
(if (< emacs-major-version 30)
(project--other-place-command '((display-buffer-pop-up-frame))
project-other-frame-map)
(project--other-place-prefix 'frame project-other-frame-map)))
;;;###autoload (define-key ctl-x-5-map "p" #'project-other-frame-command)
;;;###autoload
(defun project-other-tab-command ()
"Run project command, displaying resultant buffer in a new tab.
The following commands are available:
\\{project-prefix-map}"
(interactive)
(if (< emacs-major-version 30)
(project--other-place-command '((display-buffer-in-new-tab)))
(project--other-place-prefix 'tab)))
;;;###autoload
(when (bound-and-true-p tab-prefix-map)
(define-key tab-prefix-map "p" #'project-other-tab-command))
(declare-function grep-read-files "grep")
(declare-function xref--find-ignores-arguments "xref")
;;;###autoload
(defun project-find-regexp (regexp)
"Find all matches for REGEXP in the current project's roots.
With \\[universal-argument] prefix, you can specify the directory
to search in, and the file name pattern to search for. The
pattern may use abbreviations defined in `grep-files-aliases',
e.g. entering `ch' is equivalent to `*.[ch]'. As whitespace
triggers completion when entering a pattern, including it
requires quoting, e.g. `\\[quoted-insert]<space>'."
(interactive (list (project--read-regexp)))
(require 'xref)
(require 'grep)
(let* ((caller-dir default-directory)
(pr (project-current t))
(default-directory (project-root pr))
(files
(if (not current-prefix-arg)
(project-files pr)
(let ((dir (read-directory-name "Base directory: "
caller-dir nil t)))
(project--files-in-directory dir
nil
(grep-read-files regexp))))))
(xref-show-xrefs
(apply-partially #'project--find-regexp-in-files regexp files)
nil)))
(defun project--dir-ignores (project dir)
(let ((root (project-root project)))
(if (not (file-in-directory-p dir root))
(project-ignores nil nil) ;The defaults.
(let ((ignores (project-ignores project root)))
(if (file-equal-p root dir)
ignores
;; FIXME: Update the "rooted" ignores to relate to DIR instead.
(cl-delete-if (lambda (str) (string-prefix-p "./" str))
ignores))))))
;;;###autoload
(defun project-or-external-find-regexp (regexp)
"Find all matches for REGEXP in the project roots or external roots.
With \\[universal-argument] prefix, you can specify the file name
pattern to search for."
(interactive (list (project--read-regexp)))
(require 'xref)
(let* ((pr (project-current t))
(default-directory (project-root pr))
(files
(project-files pr (cons
(project-root pr)
(project-external-roots pr)))))
(xref-show-xrefs
(apply-partially #'project--find-regexp-in-files regexp files)
nil)))
(defun project--find-regexp-in-files (regexp files)
(unless files
(user-error "Empty file list"))
(let ((xrefs (xref-matches-in-files regexp files)))
(unless xrefs
(user-error "No matches for: %s" regexp))
xrefs))
(defvar project-regexp-history-variable 'grep-regexp-history)
(defun project--read-regexp ()
(let ((sym (thing-at-point 'symbol t)))
(read-regexp "Find regexp" (and sym (regexp-quote sym))
project-regexp-history-variable)))
(defun project--find-default-from (filename project)
"Ensure FILENAME is in PROJECT.
Usually, just return FILENAME. But if
`project-current-directory-override' is set, adjust it to be
relative to PROJECT instead.
This supports using a relative file name from the current buffer
when switching projects with `project-switch-project' and then
using a command like `project-find-file'."
(if-let (filename-proj (and project-current-directory-override
(project-current nil default-directory)))
;; file-name-concat requires Emacs 28+
(concat (file-name-as-directory (project-root project))
(file-relative-name filename (project-root filename-proj)))
filename))
;;;###autoload
(defun project-find-file (&optional include-all)
"Visit a file (with completion) in the current project.
The filename at point (determined by `thing-at-point'), if any,
is available as part of \"future history\". If none, the current
buffer's file name is used.
If INCLUDE-ALL is non-nil, or with prefix argument when called
interactively, include all files under the project root, except
for VCS directories listed in `vc-directory-exclusion-list'."
(interactive "P")
(let* ((pr (project-current t))
(root (project-root pr))
(dirs (list root)))
(project-find-file-in
(or (thing-at-point 'filename)
(and buffer-file-name (project--find-default-from buffer-file-name pr)))
dirs pr include-all)))
;;;###autoload
(defun project-or-external-find-file (&optional include-all)
"Visit a file (with completion) in the current project or external roots.
The filename at point (determined by `thing-at-point'), if any,
is available as part of \"future history\". If none, the current
buffer's file name is used.
If INCLUDE-ALL is non-nil, or with prefix argument when called
interactively, include all files under the project root, except
for VCS directories listed in `vc-directory-exclusion-list'."
(interactive "P")
(defvar project-file-history-behavior)
(let* ((pr (project-current t))
(dirs (cons
(project-root pr)
(project-external-roots pr)))
(project-file-history-behavior t))
(project-find-file-in
(or (thing-at-point 'filename)
(and buffer-file-name (project--find-default-from buffer-file-name pr)))
dirs pr include-all)))
(defcustom project-read-file-name-function #'project--read-file-cpd-relative
"Function to call to read a file name from a list.
For the arguments list, see `project--read-file-cpd-relative'."
:type '(choice (const :tag "Read with completion from relative names"
project--read-file-cpd-relative)
(const :tag "Read with completion from absolute names"
project--read-file-absolute)
(function :tag "Custom function" nil))
:group 'project
:version "27.1")
(defcustom project-file-history-behavior t
"If `relativize', entries in `file-name-history' are adjusted.
History entries shown in `project-find-file', `project-find-dir',
(from `file-name-history') are adjusted to be relative to the
current project root, instead of the project which added those
paths. This only affects history entries added by earlier calls
to `project-find-file' or `project-find-dir'.
This has the effect of sharing more history between projects."
:type '(choice (const :tag "Default behavior" t)
(const :tag "Adjust to be relative to current" relativize))
:group 'project
:version "30.1")
(defun project--transplant-file-name (filename project)
(when-let ((old-root (get-text-property 0 'project filename)))
(abbreviate-file-name
(expand-file-name
(file-relative-name filename old-root)
(project-root project)))))
(defun project--read-file-cpd-relative (prompt
all-files &optional predicate
hist mb-default)
"Read a file name, prompting with PROMPT.
ALL-FILES is a list of possible file name completions.
PREDICATE and HIST have the same meaning as in `completing-read'.
MB-DEFAULT is used as part of \"future history\", to be inserted
by the user at will."
(let* ((common-parent-directory
(let ((common-prefix (try-completion "" all-files)))
(if (> (length common-prefix) 0)
(file-name-directory common-prefix))))
(cpd-length (length common-parent-directory))
(prompt (if (zerop cpd-length)
prompt
(concat prompt (format " in %s" common-parent-directory))))
(included-cpd (when (member common-parent-directory all-files)
(setq all-files
(delete common-parent-directory all-files))
t))
(mb-default (if (and common-parent-directory
mb-default
(file-name-absolute-p mb-default))
(file-relative-name mb-default common-parent-directory)
mb-default))
(substrings (mapcar (lambda (s) (substring s cpd-length)) all-files))
(_ (when included-cpd
(setq substrings (cons "./" substrings))))
(new-collection (project--file-completion-table substrings))
(abbr-cpd (abbreviate-file-name common-parent-directory))
(abbr-cpd-length (length abbr-cpd))
(relname (cl-letf (((symbol-value hist)
(mapcan
(lambda (s)
(and (string-prefix-p abbr-cpd s)
(not (eq abbr-cpd-length (length s)))
(list (substring s abbr-cpd-length))))
(symbol-value hist))))
(project--completing-read-strict prompt
new-collection
predicate
hist mb-default)))
(absname (expand-file-name relname common-parent-directory)))
absname))
(defun project--read-file-absolute (prompt
all-files &optional predicate
hist mb-default)
(project--completing-read-strict prompt
(project--file-completion-table all-files)
predicate
hist mb-default))
(defun project--read-file-name ( project prompt
all-files &optional predicate
hist mb-default)
"Call `project-read-file-name-function' with appropriate history.
Depending on `project-file-history-behavior', entries are made
project-relative where possible."
(let ((file
(cl-letf ((history-add-new-input nil)
((symbol-value hist)
(if (eq project-file-history-behavior 'relativize)
(mapcar
(lambda (f)
(or (project--transplant-file-name f project) f))
(symbol-value hist))
(symbol-value hist))))
(funcall project-read-file-name-function
prompt all-files predicate hist mb-default))))
(when (and hist history-add-new-input)
(add-to-history hist
(propertize file 'project (project-root project))))
file))
(defun project-find-file-in (suggested-filename dirs project &optional include-all)
"Complete a file name in DIRS in PROJECT and visit the result.
SUGGESTED-FILENAME is a file name, or part of it, which
is used as part of \"future history\".
If INCLUDE-ALL is non-nil, or with prefix argument when called
interactively, include all files from DIRS, except for VCS
directories listed in `vc-directory-exclusion-list'."
(let* ((vc-dirs-ignores (mapcar
(lambda (dir)
(concat dir "/"))
vc-directory-exclusion-list))
(all-files
(if include-all
(mapcan
(lambda (dir) (project--files-in-directory dir vc-dirs-ignores))
dirs)
(project-files project dirs)))
(completion-ignore-case read-file-name-completion-ignore-case)
(file (project--read-file-name
project "Find file"
all-files nil 'file-name-history
suggested-filename)))
(if (string= file "")
(user-error "You didn't specify the file")
(find-file file))))
(defun project--completing-read-strict (prompt
collection &optional predicate
hist mb-default)
(minibuffer-with-setup-hook
(lambda ()
(setq-local minibuffer-default-add-function
(lambda ()
(let ((minibuffer-default mb-default))
(minibuffer-default-add-completions)))))
(completing-read (format "%s: " prompt)
collection predicate 'confirm
nil
hist)))
;;;###autoload
(defun project-find-dir ()
"Start Dired in a directory inside the current project.
The current buffer's `default-directory' is available as part of
\"future history\"."
(interactive)
(let* ((project (project-current t))
(all-files (project-files project))
(completion-ignore-case read-file-name-completion-ignore-case)
;; FIXME: This misses directories without any files directly
;; inside. Consider DIRS-ONLY as an argument for
;; `project-files-filtered', and see
;; https://stackoverflow.com/a/50685235/615245 for possible
;; implementation.
(all-dirs (mapcar #'file-name-directory all-files))
(dir (project--read-file-name
project "Dired"
;; Some completion UIs show duplicates.
(delete-dups all-dirs)
nil 'file-name-history
(and default-directory
(project--find-default-from default-directory project)))))
(dired dir)))
;;;###autoload
(defun project-dired ()
"Start Dired in the current project's root."
(interactive)
(dired (project-root (project-current t))))
;;;###autoload
(defun project-vc-dir ()
"Run VC-Dir in the current project's root."
(interactive)
(vc-dir (project-root (project-current t))))
(declare-function comint-check-proc "comint")
;;;###autoload
(defun project-shell ()
"Start an inferior shell in the current project's root directory.
If a buffer already exists for running a shell in the project's root,
switch to it. Otherwise, create a new shell buffer.
With \\[universal-argument] prefix arg, create a new inferior shell buffer even
if one already exists."
(interactive)
(require 'comint)
(let* ((default-directory (project-root (project-current t)))
(default-project-shell-name (project-prefixed-buffer-name "shell"))
(shell-buffer (get-buffer default-project-shell-name)))
(if (and shell-buffer (not current-prefix-arg))
(if (comint-check-proc shell-buffer)
(pop-to-buffer shell-buffer (bound-and-true-p display-comint-buffer-action))
(shell shell-buffer))
(shell (generate-new-buffer-name default-project-shell-name)))))
;;;###autoload
(defun project-eshell ()
"Start Eshell in the current project's root directory.
If a buffer already exists for running Eshell in the project's root,
switch to it. Otherwise, create a new Eshell buffer.
With \\[universal-argument] prefix arg, create a new Eshell buffer even
if one already exists."
(interactive)
(defvar eshell-buffer-name)
(let* ((default-directory (project-root (project-current t)))
(eshell-buffer-name (project-prefixed-buffer-name "eshell"))
(eshell-buffer (get-buffer eshell-buffer-name)))
(if (and eshell-buffer (not current-prefix-arg))
(pop-to-buffer eshell-buffer (bound-and-true-p display-comint-buffer-action))
(eshell t))))
;;;###autoload
(defun project-async-shell-command ()
"Run `async-shell-command' in the current project's root directory."
(declare (interactive-only async-shell-command))
(interactive)
(let ((default-directory (project-root (project-current t))))
(call-interactively #'async-shell-command)))
;;;###autoload
(defun project-shell-command ()
"Run `shell-command' in the current project's root directory."
(declare (interactive-only shell-command))
(interactive)
(let ((default-directory (project-root (project-current t))))
(call-interactively #'shell-command)))
(declare-function fileloop-continue "fileloop" ())
;;;###autoload
(defun project-search (regexp)
"Search for REGEXP in all the files of the project.
Stops when a match is found.
To continue searching for the next match, use the
command \\[fileloop-continue]."
(interactive "sSearch (regexp): ")
(fileloop-initialize-search
regexp
;; XXX: See the comment in project-query-replace-regexp.
(cl-delete-if-not #'file-regular-p (project-files (project-current t)))
'default)
(fileloop-continue))
;;;###autoload
(defun project-query-replace-regexp (from to)
"Query-replace REGEXP in all the files of the project.
Stops when a match is found and prompts for whether to replace it.
At that prompt, the user must type a character saying what to do
with the match. Type SPC or `y' to replace the match,
DEL or `n' to skip and go to the next match. For more directions,
type \\[help-command] at that time.
If you exit the `query-replace', you can later continue the
`query-replace' loop using the command \\[fileloop-continue]."
(interactive
(let ((query-replace-read-from-regexp-default 'find-tag-default-as-regexp))
(pcase-let ((`(,from ,to)
(query-replace-read-args "Query replace (regexp)" t t)))
(list from to))))
(fileloop-initialize-replace
from to
;; XXX: Filter out Git submodules, which are not regular files.
;; `project-files' can return those, which is arguably suboptimal,
;; but removing them eagerly has performance cost.
(cl-delete-if-not #'file-regular-p (project-files (project-current t)))
'default)
(fileloop-continue))
(defvar compilation-read-command)
(declare-function compilation-read-command "compile")
(defun project-prefixed-buffer-name (mode)
(concat "*"
(if-let ((proj (project-current nil)))
(project-name proj)
(file-name-nondirectory
(directory-file-name default-directory)))
"-"
(downcase mode)
"*"))
(defcustom project-compilation-buffer-name-function nil
"Function to compute the name of a project compilation buffer.
If non-nil, it overrides `compilation-buffer-name-function' for
`project-compile'."
:version "28.1"
:group 'project
:type '(choice (const :tag "Default" nil)
(const :tag "Prefixed with project name"
project-prefixed-buffer-name)
(function :tag "Custom function")))
;;;###autoload
(defun project-compile ()
"Run `compile' in the project root."
(declare (interactive-only compile))
(interactive)
(let ((default-directory (project-root (project-current t)))
(compilation-buffer-name-function
(or project-compilation-buffer-name-function
compilation-buffer-name-function)))
(call-interactively #'compile)))
(defcustom project-ignore-buffer-conditions nil
"List of conditions to filter the buffers to be switched to.
If any of these conditions are satisfied for a buffer in the
current project, `project-switch-to-buffer',
`project-display-buffer' and `project-display-buffer-other-frame'
ignore it.
See the doc string of `project-kill-buffer-conditions' for the
general form of conditions."
:type '(repeat (choice regexp function symbol
(cons :tag "Major mode"
(const major-mode) symbol)
(cons :tag "Derived mode"
(const derived-mode) symbol)
(cons :tag "Negation"
(const not) sexp)
(cons :tag "Conjunction"
(const and) sexp)
(cons :tag "Disjunction"
(const or) sexp)))
:version "29.1"
:group 'project
:package-version '(project . "0.8.2"))
(defun project--read-project-buffer ()
(let* ((pr (project-current t))
(current-buffer (current-buffer))
(other-buffer (other-buffer current-buffer))
(other-name (buffer-name other-buffer))
(buffers (project-buffers pr))
(predicate
(lambda (buffer)
;; BUFFER is an entry (BUF-NAME . BUF-OBJ) of Vbuffer_alist.
(and (memq (cdr buffer) buffers)
(not
(project--buffer-check
(cdr buffer) project-ignore-buffer-conditions)))))
(buffer (read-buffer
"Switch to buffer: "
(when (funcall predicate (cons other-name other-buffer))
other-name)
nil
predicate)))
;; XXX: This check hardcodes the default buffer-belonging relation
;; which `project-buffers' is allowed to override. Straighten
;; this up sometime later. Or not. Since we can add a method
;; `project-contains-buffer-p', but a separate method to create a
;; new project buffer seems too much.
(if (or (get-buffer buffer)
(file-in-directory-p default-directory (project-root pr)))
buffer
(let ((default-directory (project-root pr)))
(get-buffer-create buffer)))))
;;;###autoload
(defun project-switch-to-buffer (buffer-or-name)
"Display buffer BUFFER-OR-NAME in the selected window.
When called interactively, prompts for a buffer belonging to the
current project. Two buffers belong to the same project if their
project instances, as reported by `project-current' in each
buffer, are identical."
(interactive (list (project--read-project-buffer)))
(switch-to-buffer buffer-or-name))
;;;###autoload
(defun project-display-buffer (buffer-or-name)
"Display BUFFER-OR-NAME in some window, without selecting it.
When called interactively, prompts for a buffer belonging to the
current project. Two buffers belong to the same project if their
project instances, as reported by `project-current' in each
buffer, are identical.
This function uses `display-buffer' as a subroutine, which see
for how it is determined where the buffer will be displayed."
(interactive (list (project--read-project-buffer)))
(display-buffer buffer-or-name))
;;;###autoload
(defun project-display-buffer-other-frame (buffer-or-name)
"Display BUFFER-OR-NAME preferably in another frame.
When called interactively, prompts for a buffer belonging to the
current project. Two buffers belong to the same project if their
project instances, as reported by `project-current' in each
buffer, are identical.
This function uses `display-buffer-other-frame' as a subroutine,
which see for how it is determined where the buffer will be
displayed."
(interactive (list (project--read-project-buffer)))
(display-buffer-other-frame buffer-or-name))
;;;###autoload
(defun project-list-buffers (&optional arg)
"Display a list of project buffers.
The list is displayed in a buffer named \"*Buffer List*\".
By default, all project buffers are listed except those whose names
start with a space (which are for internal use). With prefix argument
ARG, show only buffers that are visiting files."
(interactive "P")
(let* ((pr (project-current t))
(buffer-list-function
(lambda ()
(seq-filter
(lambda (buffer)
(let ((name (buffer-name buffer))
(file (buffer-file-name buffer)))
(and (or (not (string= (substring name 0 1) " "))
file)
(not (eq buffer (current-buffer)))
(or file (not Buffer-menu-files-only)))))
(project-buffers pr)))))
(display-buffer
(if (version< emacs-version "29.0.50")
(let ((buf (list-buffers-noselect
arg (with-current-buffer
(get-buffer-create "*Buffer List*")
(let ((Buffer-menu-files-only arg))
(funcall buffer-list-function))))))
(with-current-buffer buf
(setq-local revert-buffer-function
(lambda (&rest _ignored)
(list-buffers--refresh
(funcall buffer-list-function))
(tabulated-list-print t))))
buf)
(list-buffers-noselect arg buffer-list-function)))))
(defcustom project-kill-buffer-conditions
'(buffer-file-name ; All file-visiting buffers are included.
;; Most of temp and logging buffers (aside from hidden ones):
(and
(major-mode . fundamental-mode)
"\\`[^ ]")
;; non-text buffer such as xref, occur, vc, log, ...
(and (derived-mode . special-mode)
(not (major-mode . help-mode))
(not (derived-mode . gnus-mode)))
(derived-mode . compilation-mode)
(derived-mode . dired-mode)
(derived-mode . diff-mode)
(derived-mode . comint-mode)
(derived-mode . eshell-mode)
(derived-mode . change-log-mode))
"List of conditions to kill buffers related to a project.
This list is used by `project-kill-buffers'.
Each condition is either:
- a regular expression, to match a buffer name,
- a predicate function that takes a buffer object as argument
and returns non-nil if the buffer should be killed,
- a cons-cell, where the car describes how to interpret the cdr.
The car can be one of the following:
* `major-mode': the buffer is killed if the buffer's major
mode is eq to the cons-cell's cdr.
* `derived-mode': the buffer is killed if the buffer's major
mode is derived from the major mode in the cons-cell's cdr.
* `not': the cdr is interpreted as a negation of a condition.
* `and': the cdr is a list of recursive conditions, that all have
to be met.
* `or': the cdr is a list of recursive conditions, of which at
least one has to be met.
If any of these conditions are satisfied for a buffer in the
current project, it will be killed."
:type '(repeat (choice regexp function symbol
(cons :tag "Major mode"
(const major-mode) symbol)
(cons :tag "Derived mode"
(const derived-mode) symbol)
(cons :tag "Negation"
(const not) sexp)
(cons :tag "Conjunction"
(const and) sexp)
(cons :tag "Disjunction"
(const or) sexp)))
:version "29.1"
:group 'project
:package-version '(project . "0.8.2"))
(defcustom project-kill-buffers-display-buffer-list nil
"Non-nil to display list of buffers to kill before killing project buffers.
Used by `project-kill-buffers'."
:type 'boolean
:version "29.1"
:group 'project
:package-version '(project . "0.8.2"))
;;;###autoload(put 'project-kill-buffers-display-buffer-list 'safe-local-variable #'booleanp)
;; FIXME: Could this be replaced by `buffer-match-p' in Emacs 29+?
(defun project--buffer-check (buf conditions)
"Check if buffer BUF matches any element of the list CONDITIONS.
See `project-kill-buffer-conditions' or
`project-ignore-buffer-conditions' for more details on the
form of CONDITIONS."
(catch 'match
(dolist (c conditions)
(when (cond
((stringp c)
(string-match-p c (buffer-name buf)))
((functionp c)
(funcall c buf))
((eq (car-safe c) 'major-mode)
(eq (buffer-local-value 'major-mode buf)
(cdr c)))
((eq (car-safe c) 'derived-mode)
(provided-mode-derived-p
(buffer-local-value 'major-mode buf)
(cdr c)))
((eq (car-safe c) 'not)
(not (project--buffer-check buf (cdr c))))
((eq (car-safe c) 'or)
(project--buffer-check buf (cdr c)))
((eq (car-safe c) 'and)
(seq-every-p
(apply-partially #'project--buffer-check
buf)
(mapcar #'list (cdr c)))))
(throw 'match t)))))
(defun project--buffers-to-kill (pr)
"Return list of buffers in project PR to kill.
What buffers should or should not be killed is described
in `project-kill-buffer-conditions'."
(let (bufs)
(dolist (buf (project-buffers pr))
(when (project--buffer-check buf project-kill-buffer-conditions)
(push buf bufs)))
bufs))
;;;###autoload
(defun project-kill-buffers (&optional no-confirm)
"Kill the buffers belonging to the current project.
Two buffers belong to the same project if their project
instances, as reported by `project-current' in each buffer, are
identical. Only the buffers that match a condition in
`project-kill-buffer-conditions' will be killed. If NO-CONFIRM
is non-nil, the command will not ask the user for confirmation.
NO-CONFIRM is always nil when the command is invoked
interactively.
Also see the `project-kill-buffers-display-buffer-list' variable."
(interactive)
(let* ((pr (project-current t))
(bufs (project--buffers-to-kill pr))
(query-user (lambda ()
(yes-or-no-p
(format "Kill %d buffers in %s? "
(length bufs)
(project-name pr))))))
(cond (no-confirm
(mapc #'kill-buffer bufs))
((null bufs)
(message "No buffers to kill"))
(project-kill-buffers-display-buffer-list
(when
(with-current-buffer-window
(get-buffer-create "*Buffer List*")
`(display-buffer--maybe-at-bottom
(dedicated . t)
(window-height . (fit-window-to-buffer))
(preserve-size . (nil . t))
(body-function
. ,#'(lambda (_window)
(list-buffers-noselect nil bufs))))
#'(lambda (window _value)
(with-selected-window window
(unwind-protect
(funcall query-user)
(when (window-live-p window)
(quit-restore-window window 'kill))))))
(mapc #'kill-buffer bufs)))
((funcall query-user)
(mapc #'kill-buffer bufs)))))
\f
;;; Project list
(defcustom project-list-file (locate-user-emacs-file "projects")
"File in which to save the list of known projects."
:type 'file
:version "28.1"
:group 'project)
(defvar project--list 'unset
"List structure containing root directories of known projects.
With some possible metadata (to be decided).")
(defun project--read-project-list ()
"Initialize `project--list' using contents of `project-list-file'."
(let ((filename project-list-file))
(setq project--list
(when (file-exists-p filename)
(with-temp-buffer
(insert-file-contents filename)
(mapcar
(lambda (elem)
(let ((name (car elem)))
(list (if (file-remote-p name) name
(abbreviate-file-name name)))))
(read (current-buffer))))))
(unless (seq-every-p
(lambda (elt) (stringp (car-safe elt)))
project--list)
(warn "Contents of %s are in wrong format, resetting"
project-list-file)
(setq project--list nil))))
(defun project--ensure-read-project-list ()
"Initialize `project--list' if it isn't already initialized."
(when (eq project--list 'unset)
(project--read-project-list)))
(defun project--write-project-list ()
"Save `project--list' in `project-list-file'."
(let ((filename project-list-file))
(with-temp-buffer
(insert ";;; -*- lisp-data -*-\n")
(let ((print-length nil)
(print-level nil))
(pp (mapcar (lambda (elem)
(let ((name (car elem)))
(list (if (file-remote-p name) name
(expand-file-name name)))))
project--list)
(current-buffer)))
(write-region nil nil filename nil 'silent))))
;;;###autoload
(defun project-remember-project (pr &optional no-write)
"Add project PR to the front of the project list.
Save the result in `project-list-file' if the list of projects
has changed, and NO-WRITE is nil."
(project--ensure-read-project-list)
(let ((dir (abbreviate-file-name (project-root pr))))
(unless (equal (caar project--list) dir)
(dolist (ent project--list)
(when (equal dir (car ent))
(setq project--list (delq ent project--list))))
(push (list dir) project--list)
(unless no-write
(project--write-project-list)))))
(defun project--remove-from-project-list (project-root report-message)
"Remove directory PROJECT-ROOT of a missing project from the project list.
If the directory was in the list before the removal, save the
result in `project-list-file'. Announce the project's removal
from the list using REPORT-MESSAGE, which is a format string
passed to `message' as its first argument."
(project--ensure-read-project-list)
(when-let ((ent (assoc (abbreviate-file-name project-root) project--list)))
(setq project--list (delq ent project--list))
(message report-message project-root)
(project--write-project-list)))
;;;###autoload
(defun project-forget-project (project-root)
"Remove directory PROJECT-ROOT from the project list.
PROJECT-ROOT is the root directory of a known project listed in
the project list."
(interactive (list (funcall project-prompter)))
(project--remove-from-project-list
project-root "Project `%s' removed from known projects"))
(defun project-prompt-project-dir ()
"Prompt the user for a directory that is one of the known project roots.
The project is chosen among projects known from the project list,
see `project-list-file'.
It's also possible to enter an arbitrary directory not in the list."
(project--ensure-read-project-list)
(let* ((dir-choice "... (choose a dir)")
(choices
;; XXX: Just using this for the category (for the substring
;; completion style).
(project--file-completion-table
(append project--list `(,dir-choice))))
(pr-dir ""))
(while (equal pr-dir "")
;; If the user simply pressed RET, do this again until they don't.
(setq pr-dir (completing-read "Select project: " choices nil t)))
(if (equal pr-dir dir-choice)
(read-directory-name "Select directory: " default-directory nil t)
pr-dir)))
(defun project-prompt-project-name ()
"Prompt the user for a project, by name, that is one of the known project roots.
The project is chosen among projects known from the project list,
see `project-list-file'.
It's also possible to enter an arbitrary directory not in the list."
(let* ((dir-choice "... (choose a dir)")
(choices
(let (ret)
(dolist (dir (project-known-project-roots))
;; we filter out directories that no longer map to a project,
;; since they don't have a clean project-name.
(if-let (proj (project--find-in-directory dir))
(push (cons (project-name proj) proj) ret)))
ret))
;; XXX: Just using this for the category (for the substring
;; completion style).
(table (project--file-completion-table
(reverse (cons dir-choice choices))))
(pr-name ""))
(while (equal pr-name "")
;; If the user simply pressed RET, do this again until they don't.
(setq pr-name (completing-read "Select project: " table nil t)))
(if (equal pr-name dir-choice)
(read-directory-name "Select directory: " default-directory nil t)
(let ((proj (assoc pr-name choices)))
(if (stringp proj) proj (project-root (cdr proj)))))))
;;;###autoload
(defun project-known-project-roots ()
"Return the list of root directories of all known projects."
(project--ensure-read-project-list)
(mapcar #'car project--list))
;;;###autoload
(defun project-execute-extended-command ()
"Execute an extended command in project root."
(declare (interactive-only command-execute))
(interactive)
(let ((default-directory (project-root (project-current t))))
(call-interactively #'execute-extended-command)))
(defun project-remember-projects-under (dir &optional recursive)
"Index all projects below a directory DIR.
If RECURSIVE is non-nil, recurse into all subdirectories to find
more projects. After finishing, a message is printed summarizing
the progress. The function returns the number of detected
projects."
(interactive "DDirectory: \nP")
(project--ensure-read-project-list)
(let ((queue (list dir))
(count 0)
(known (make-hash-table
:size (* 2 (length project--list))
:test #'equal )))
(dolist (project (mapcar #'car project--list))
(puthash project t known))
(while queue
(when-let ((subdir (pop queue))
((file-directory-p subdir)))
(when-let ((project (project--find-in-directory subdir))
(project-root (project-root project))
((not (gethash project-root known))))
(project-remember-project project t)
(puthash project-root t known)
(message "Found %s..." project-root)
(setq count (1+ count)))
(when (and recursive (file-directory-p subdir))
(setq queue
(nconc
(directory-files
subdir t directory-files-no-dot-files-regexp t)
queue)))))
(unless (eq recursive 'in-progress)
(if (zerop count)
(message "No projects were found")
(project--write-project-list)
(message "%d project%s were found"
count (if (= count 1) "" "s"))))
count))
(defun project-forget-zombie-projects ()
"Forget all known projects that don't exist any more."
(interactive)
(dolist (proj (project-known-project-roots))
(unless (file-exists-p proj)
(project-forget-project proj))))
(defun project-forget-projects-under (dir &optional recursive)
"Forget all known projects below a directory DIR.
If RECURSIVE is non-nil, recurse into all subdirectories to
remove all known projects. After finishing, a message is printed
summarizing the progress. The function returns the number of
forgotten projects."
(interactive "DDirectory: \nP")
(let ((count 0))
(if recursive
(dolist (proj (project-known-project-roots))
(when (file-in-directory-p proj dir)
(project-forget-project proj)
(setq count (1+ count))))
(dolist (proj (project-known-project-roots))
(when (file-equal-p (file-name-directory proj) dir)
(project-forget-project proj)
(setq count (1+ count)))))
(if (zerop count)
(message "No projects were forgotten")
(project--write-project-list)
(message "%d project%s were forgotten"
count (if (= count 1) "" "s")))
count))
\f
;;; Project switching
(defcustom project-switch-commands
'((project-find-file "Find file")
(project-find-regexp "Find regexp")
(project-find-dir "Find directory")
(project-vc-dir "VC-Dir")
(project-eshell "Eshell"))
"Alist mapping commands to descriptions.
Used by `project-switch-project' to construct a dispatch menu of
commands available upon \"switching\" to another project.
Each element is of the form (COMMAND LABEL &optional KEY) where
COMMAND is the command to run when KEY is pressed. LABEL is used
to distinguish the menu entries in the dispatch menu. If KEY is
absent, COMMAND must be bound in `project-prefix-map', and the
key is looked up in that map.
The value can also be a symbol, the name of the command to be
invoked immediately without any dispatch menu."
:version "28.1"
:group 'project
:package-version '(project . "0.6.0")
:type '(choice
(repeat :tag "Commands menu"
(list
(symbol :tag "Command")
(string :tag "Label")
(choice :tag "Key to press"
(const :tag "Infer from the keymap" nil)
(character :tag "Explicit key"))))
(symbol :tag "Single command")))
(defcustom project-switch-use-entire-map nil
"Whether `project-switch-project' will use the entire `project-prefix-map'.
If nil, `project-switch-project' will only recognize commands
listed in `project-switch-commands', and will signal an error
when other commands are invoked. If this is non-nil, all the
keys in `project-prefix-map' are valid even if they aren't
listed in the dispatch menu produced from `project-switch-commands'."
:type 'boolean
:group 'project
:version "28.1")
(defcustom project-key-prompt-style (if (facep 'help-key-binding)
t
'brackets)
"Which presentation to use when asking to choose a command by key.
When `brackets', use text brackets and `bold' for the character.
Otherwise, use the face `help-key-binding' in the prompt."
:type '(choice (const :tag "Using help-key-binding face" t)
(const :tag "Using bold face and brackets" brackets))
:group 'project
:version "30.1")
(defun project--keymap-prompt ()
"Return a prompt for the project switching using the prefix map."
(let (keys)
(map-keymap
(lambda (evt _)
(when (characterp evt) (push evt keys)))
project-prefix-map)
(mapconcat (lambda (key) (help-key-description (string key) nil)) keys " ")))
(defun project--menu-prompt ()
"Return a prompt for the project switching dispatch menu."
(mapconcat
(pcase-lambda (`(,cmd ,label ,key))
(when (characterp cmd) ; Old format, apparently user-customized.
(let ((tmp cmd))
;; TODO: Add a deprecation warning, probably.
(setq cmd key
key tmp)))
(let ((key (if key
(vector key)
(where-is-internal cmd (list project-prefix-map) t))))
(if (not (eq project-key-prompt-style 'brackets))
(format "%s %s"
(propertize (key-description key) 'face 'help-key-binding)
label)
(format "[%s] %s"
(propertize (key-description key) 'face 'bold)
label))))
project-switch-commands
" "))
(defun project--switch-project-command ()
(let* ((commands-menu
(mapcar
(lambda (row)
(if (characterp (car row))
;; Deprecated format.
;; XXX: Add a warning about it?
(reverse row)
row))
project-switch-commands))
(commands-map
(let ((temp-map (make-sparse-keymap)))
(set-keymap-parent temp-map project-prefix-map)
(dolist (row commands-menu temp-map)
(when-let ((cmd (nth 0 row))
(keychar (nth 2 row)))
(define-key temp-map (vector keychar) cmd)))))
command
choice)
(while (not command)
(let* ((overriding-local-map commands-map)
(prompt (if project-switch-use-entire-map
(project--keymap-prompt)
(project--menu-prompt))))
(when choice
(setq prompt (concat prompt
(format " %s: %s"
(propertize "Unrecognized input"
'face 'warning)
(help-key-description choice nil)))))
(setq choice (read-key-sequence (concat "Choose: " prompt)))
(when (setq command (lookup-key commands-map choice))
(when (numberp command) (setq command nil))
(unless (or project-switch-use-entire-map
(assq command commands-menu))
;; TODO: Add some hint to the prompt, like "key not
;; recognized" or something.
(setq command nil)))
(let ((global-command (lookup-key (current-global-map) choice)))
(when (memq global-command
'(keyboard-quit keyboard-escape-quit))
(call-interactively global-command)))))
command))
;;;###autoload
(defun project-switch-project (dir)
"\"Switch\" to another project by running an Emacs command.
The available commands are presented as a dispatch menu
made from `project-switch-commands'.
When called in a program, it will use the project corresponding
to directory DIR."
(interactive (list (funcall project-prompter)))
(let ((command (if (symbolp project-switch-commands)
project-switch-commands
(project--switch-project-command))))
(let ((project-current-directory-override dir))
(call-interactively command))))
;;;###autoload
(defun project-uniquify-dirname-transform (dirname)
"Uniquify name of directory DIRNAME using `project-name', if in a project.
If you set `uniquify-dirname-transform' to this function,
slash-separated components from `project-name' will be appended to
the buffer's directory name when buffers from two different projects
would otherwise have the same name."
(if-let (proj (project-current nil dirname))
(let ((root (project-root proj)))
(expand-file-name
(file-name-concat
(file-name-directory root)
(project-name proj)
(file-relative-name dirname root))))
dirname))
;;; Project mode-line
;;;###autoload
(defcustom project-mode-line nil
"Whether to show current project name and Project menu on the mode line.
This feature requires the presence of the following item in
`mode-line-format': `(project-mode-line project-mode-line-format)'; it
is part of the default mode line beginning with Emacs 30."
:type 'boolean
:group 'project
:version "30.1")
(defvar project-menu-entry
`(menu-item "Project" ,menu-bar-project-menu))
(defvar project-mode-line-map
(let ((map (make-sparse-keymap)))
(define-key map [mode-line down-mouse-1] project-menu-entry)
map))
(defvar project-mode-line-face nil
"Face name to use for the project name on the mode line.")
(defvar project-mode-line-format '(:eval (project-mode-line-format)))
(put 'project-mode-line-format 'risky-local-variable t)
(defun project-mode-line-format ()
"Compose the project mode-line."
(when-let ((project (project-current)))
(concat
" "
(propertize
(project-name project)
'face project-mode-line-face
'mouse-face 'mode-line-highlight
'help-echo "mouse-1: Project menu"
'local-map project-mode-line-map))))
(provide 'project)
;;; project.el ends here
|