Merge branch 'mt/threaded-grep-in-object-store'

Traditionally, we avoided threaded grep while searching in objects
(as opposed to files in the working tree) as accesses to the object
layer is not thread-safe.  This limitation is getting lifted.

* mt/threaded-grep-in-object-store:
  grep: use no. of cores as the default no. of threads
  grep: move driver pre-load out of critical section
  grep: re-enable threads in non-worktree case
  grep: protect packed_git [re-]initialization
  grep: allow submodule functions to run in parallel
  submodule-config: add skip_if_read option to repo_read_gitmodules()
  grep: replace grep_read_mutex by internal obj read lock
  object-store: allow threaded access to object reading
  replace-object: make replace operations thread-safe
  grep: fix racy calls in grep_objects()
  grep: fix race conditions at grep_submodule()
  grep: fix race conditions on userdiff calls
tree: 3ab8775533954b285d1abf67d2ea0f53c7149154
  1. .github/
  2. block-sha1/
  3. builtin/
  4. ci/
  5. compat/
  6. contrib/
  7. Documentation/
  8. ewah/
  9. git-gui/
  10. gitk-git/
  11. gitweb/
  12. mergetools/
  13. negotiator/
  14. perl/
  15. po/
  16. ppc/
  17. refs/
  18. sha1dc/
  19. sha256/
  20. t/
  21. templates/
  22. trace2/
  23. vcs-svn/
  24. xdiff/
  25. .cirrus.yml
  26. .clang-format
  27. .editorconfig
  28. .gitattributes
  29. .gitignore
  30. .gitmodules
  31. .mailmap
  32. .travis.yml
  33. .tsan-suppressions
  34. abspath.c
  35. aclocal.m4
  36. add-interactive.c
  37. add-interactive.h
  38. add-patch.c
  39. advice.c
  40. advice.h
  41. alias.c
  42. alias.h
  43. alloc.c
  44. alloc.h
  45. apply.c
  46. apply.h
  47. archive-tar.c
  48. archive-zip.c
  49. archive.c
  50. archive.h
  51. argv-array.c
  52. argv-array.h
  53. attr.c
  54. attr.h
  55. azure-pipelines.yml
  56. banned.h
  57. base85.c
  58. bisect.c
  59. bisect.h
  60. blame.c
  61. blame.h
  62. blob.c
  63. blob.h
  64. branch.c
  65. branch.h
  66. builtin.h
  67. bulk-checkin.c
  68. bulk-checkin.h
  69. bundle.c
  70. bundle.h
  71. cache-tree.c
  72. cache-tree.h
  73. cache.h
  74. chdir-notify.c
  75. chdir-notify.h
  76. check-builtins.sh
  77. check_bindir
  78. checkout.c
  79. checkout.h
  80. CODE_OF_CONDUCT.md
  81. color.c
  82. color.h
  83. column.c
  84. column.h
  85. combine-diff.c
  86. command-list.txt
  87. commit-graph.c
  88. commit-graph.h
  89. commit-reach.c
  90. commit-reach.h
  91. commit-slab-decl.h
  92. commit-slab-impl.h
  93. commit-slab.h
  94. commit.c
  95. commit.h
  96. common-main.c
  97. config.c
  98. config.h
  99. config.mak.dev
  100. config.mak.in
  101. config.mak.uname
  102. configure.ac
  103. connect.c
  104. connect.h
  105. connected.c
  106. connected.h
  107. convert.c
  108. convert.h
  109. copy.c
  110. COPYING
  111. credential-cache--daemon.c
  112. credential-cache.c
  113. credential-store.c
  114. credential.c
  115. credential.h
  116. csum-file.c
  117. csum-file.h
  118. ctype.c
  119. daemon.c
  120. date.c
  121. decorate.c
  122. decorate.h
  123. delta-islands.c
  124. delta-islands.h
  125. delta.h
  126. detect-compiler
  127. diff-delta.c
  128. diff-lib.c
  129. diff-no-index.c
  130. diff.c
  131. diff.h
  132. diffcore-break.c
  133. diffcore-delta.c
  134. diffcore-order.c
  135. diffcore-pickaxe.c
  136. diffcore-rename.c
  137. diffcore.h
  138. dir-iterator.c
  139. dir-iterator.h
  140. dir.c
  141. dir.h
  142. editor.c
  143. entry.c
  144. environment.c
  145. exec-cmd.c
  146. exec-cmd.h
  147. fast-import.c
  148. fetch-negotiator.c
  149. fetch-negotiator.h
  150. fetch-pack.c
  151. fetch-pack.h
  152. fmt-merge-msg.h
  153. fsck.c
  154. fsck.h
  155. fsmonitor.c
  156. fsmonitor.h
  157. fuzz-commit-graph.c
  158. fuzz-pack-headers.c
  159. fuzz-pack-idx.c
  160. generate-cmdlist.sh
  161. gettext.c
  162. gettext.h
  163. git-add--interactive.perl
  164. git-archimport.perl
  165. git-bisect.sh
  166. git-compat-util.h
  167. git-cvsexportcommit.perl
  168. git-cvsimport.perl
  169. git-cvsserver.perl
  170. git-difftool--helper.sh
  171. git-filter-branch.sh
  172. git-instaweb.sh
  173. git-legacy-stash.sh
  174. git-merge-octopus.sh
  175. git-merge-one-file.sh
  176. git-merge-resolve.sh
  177. git-mergetool--lib.sh
  178. git-mergetool.sh
  179. git-p4.py
  180. git-parse-remote.sh
  181. git-quiltimport.sh
  182. git-rebase--preserve-merges.sh
  183. git-request-pull.sh
  184. git-send-email.perl
  185. git-sh-i18n.sh
  186. git-sh-setup.sh
  187. git-submodule.sh
  188. git-svn.perl
  189. GIT-VERSION-GEN
  190. git-web--browse.sh
  191. git.c
  192. git.rc
  193. gpg-interface.c
  194. gpg-interface.h
  195. graph.c
  196. graph.h
  197. grep.c
  198. grep.h
  199. hash.h
  200. hashmap.c
  201. hashmap.h
  202. help.c
  203. help.h
  204. hex.c
  205. http-backend.c
  206. http-fetch.c
  207. http-push.c
  208. http-walker.c
  209. http.c
  210. http.h
  211. ident.c
  212. imap-send.c
  213. INSTALL
  214. interdiff.c
  215. interdiff.h
  216. iterator.h
  217. json-writer.c
  218. json-writer.h
  219. khash.h
  220. kwset.c
  221. kwset.h
  222. levenshtein.c
  223. levenshtein.h
  224. LGPL-2.1
  225. line-log.c
  226. line-log.h
  227. line-range.c
  228. line-range.h
  229. linear-assignment.c
  230. linear-assignment.h
  231. list-objects-filter-options.c
  232. list-objects-filter-options.h
  233. list-objects-filter.c
  234. list-objects-filter.h
  235. list-objects.c
  236. list-objects.h
  237. list.h
  238. ll-merge.c
  239. ll-merge.h
  240. lockfile.c
  241. lockfile.h
  242. log-tree.c
  243. log-tree.h
  244. ls-refs.c
  245. ls-refs.h
  246. mailinfo.c
  247. mailinfo.h
  248. mailmap.c
  249. mailmap.h
  250. Makefile
  251. match-trees.c
  252. mem-pool.c
  253. mem-pool.h
  254. merge-blobs.c
  255. merge-blobs.h
  256. merge-recursive.c
  257. merge-recursive.h
  258. merge.c
  259. mergesort.c
  260. mergesort.h
  261. midx.c
  262. midx.h
  263. name-hash.c
  264. notes-cache.c
  265. notes-cache.h
  266. notes-merge.c
  267. notes-merge.h
  268. notes-utils.c
  269. notes-utils.h
  270. notes.c
  271. notes.h
  272. object-store.h
  273. object.c
  274. object.h
  275. oidmap.c
  276. oidmap.h
  277. oidset.c
  278. oidset.h
  279. pack-bitmap-write.c
  280. pack-bitmap.c
  281. pack-bitmap.h
  282. pack-check.c
  283. pack-objects.c
  284. pack-objects.h
  285. pack-revindex.c
  286. pack-revindex.h
  287. pack-write.c
  288. pack.h
  289. packfile.c
  290. packfile.h
  291. pager.c
  292. parse-options-cb.c
  293. parse-options.c
  294. parse-options.h
  295. patch-delta.c
  296. patch-ids.c
  297. patch-ids.h
  298. path.c
  299. path.h
  300. pathspec.c
  301. pathspec.h
  302. pkt-line.c
  303. pkt-line.h
  304. preload-index.c
  305. pretty.c
  306. pretty.h
  307. prio-queue.c
  308. prio-queue.h
  309. progress.c
  310. progress.h
  311. promisor-remote.c
  312. promisor-remote.h
  313. prompt.c
  314. prompt.h
  315. protocol.c
  316. protocol.h
  317. quote.c
  318. quote.h
  319. range-diff.c
  320. range-diff.h
  321. reachable.c
  322. reachable.h
  323. read-cache.c
  324. README.md
  325. rebase-interactive.c
  326. rebase-interactive.h
  327. ref-filter.c
  328. ref-filter.h
  329. reflog-walk.c
  330. reflog-walk.h
  331. refs.c
  332. refs.h
  333. refspec.c
  334. refspec.h
  335. remote-curl.c
  336. remote-testsvn.c
  337. remote.c
  338. remote.h
  339. replace-object.c
  340. replace-object.h
  341. repo-settings.c
  342. repository.c
  343. repository.h
  344. rerere.c
  345. rerere.h
  346. resolve-undo.c
  347. resolve-undo.h
  348. revision.c
  349. revision.h
  350. run-command.c
  351. run-command.h
  352. send-pack.c
  353. send-pack.h
  354. sequencer.c
  355. sequencer.h
  356. serve.c
  357. serve.h
  358. server-info.c
  359. setup.c
  360. sh-i18n--envsubst.c
  361. sha1-array.c
  362. sha1-array.h
  363. sha1-file.c
  364. sha1-lookup.c
  365. sha1-lookup.h
  366. sha1-name.c
  367. sha1dc_git.c
  368. sha1dc_git.h
  369. shallow.c
  370. shell.c
  371. shortlog.h
  372. sideband.c
  373. sideband.h
  374. sigchain.c
  375. sigchain.h
  376. split-index.c
  377. split-index.h
  378. stable-qsort.c
  379. strbuf.c
  380. strbuf.h
  381. streaming.c
  382. streaming.h
  383. string-list.c
  384. string-list.h
  385. sub-process.c
  386. sub-process.h
  387. submodule-config.c
  388. submodule-config.h
  389. submodule.c
  390. submodule.h
  391. symlinks.c
  392. tag.c
  393. tag.h
  394. tar.h
  395. tempfile.c
  396. tempfile.h
  397. thread-utils.c
  398. thread-utils.h
  399. tmp-objdir.c
  400. tmp-objdir.h
  401. trace.c
  402. trace.h
  403. trace2.c
  404. trace2.h
  405. trailer.c
  406. trailer.h
  407. transport-helper.c
  408. transport-internal.h
  409. transport.c
  410. transport.h
  411. tree-diff.c
  412. tree-walk.c
  413. tree-walk.h
  414. tree.c
  415. tree.h
  416. unicode-width.h
  417. unimplemented.sh
  418. unix-socket.c
  419. unix-socket.h
  420. unpack-trees.c
  421. unpack-trees.h
  422. upload-pack.c
  423. upload-pack.h
  424. url.c
  425. url.h
  426. urlmatch.c
  427. urlmatch.h
  428. usage.c
  429. userdiff.c
  430. userdiff.h
  431. utf8.c
  432. utf8.h
  433. varint.c
  434. varint.h
  435. version.c
  436. version.h
  437. versioncmp.c
  438. walker.c
  439. walker.h
  440. wildmatch.c
  441. wildmatch.h
  442. worktree.c
  443. worktree.h
  444. wrap-for-bin.sh
  445. wrapper.c
  446. write-or-die.c
  447. ws.c
  448. wt-status.c
  449. wt-status.h
  450. xdiff-interface.c
  451. xdiff-interface.h
  452. zlib.c
README.md

Build Status

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just “subscribe git” in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the “What's cooking” reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name “git” was given by Linus Torvalds when he wrote the very first version. He described the tool as “the stupid content tracker” and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of “get” may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • “global information tracker”: you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • “goddamn idiotic truckload of sh*t”: when it breaks