completion: add and use __git_compute_first_level_config_vars_for_section

The function __git_complete_config_variable_name in the Bash completion
script hardcodes several config variable names. These variables are
those in config sections where user-defined names can appear, such as
"branch.<name>". These sections are treated first by the case statement,
and the two last "catch all" cases are used for other sections, making
use of the __git_compute_config_vars and __git_compute_config_sections
function, which omit listing any variables containing wildcards or
placeholders. Having hardcoded config variables introduces the risk of
the completion code becoming out of sync with the actual config
variables accepted by Git.

To avoid these hardcoded config variables, introduce a new function,
__git_compute_first_level_config_vars_for_section, making use of the
existing __git_config_vars variable. This function takes as argument a
config section name and computes the matching "first level" config
variables for that section, i.e. those _not_ containing any placeholder,
like 'branch.autoSetupMerge, 'remote.pushDefault', etc.  Use this
function and the variables it defines in the 'branch.*', 'remote.*' and
'submodule.*' switches of the case statement instead of hardcoding the
corresponding config variables.  Note that we use indirect expansion to
create a variable for each section, instead of using a single
associative array indexed by section names, because associative arrays
are not supported in Bash 3, on which macOS is stuck for licensing
reasons.

Use the existing pattern in the completion script of using global
variables to cache the list of config variables for each section. The
rationale for such caching is explained in eaa4e6ee2a (Speed up bash
completion loading, 2009-11-17), and the current approach to using and
defining them via 'test -n' is explained in cf0ff02a38 (completion: work
around zsh option propagation bug, 2012-02-02).

Adjust the name of one of the tests added in the previous commit,
reflecting that it now also tests the new function.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 files changed
tree: 5f5a9ba7176969a97ed72b873cb0248deba908c7
  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. oss-fuzz/
  15. perl/
  16. po/
  17. refs/
  18. reftable/
  19. sha1/
  20. sha1dc/
  21. sha256/
  22. t/
  23. templates/
  24. trace2/
  25. xdiff/
  26. .cirrus.yml
  27. .clang-format
  28. .editorconfig
  29. .gitattributes
  30. .gitignore
  31. .gitlab-ci.yml
  32. .gitmodules
  33. .mailmap
  34. .tsan-suppressions
  35. abspath.c
  36. abspath.h
  37. aclocal.m4
  38. add-interactive.c
  39. add-interactive.h
  40. add-patch.c
  41. advice.c
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  43. alias.c
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  45. alloc.c
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  47. apply.c
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  49. archive-tar.c
  50. archive-zip.c
  51. archive.c
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  53. attr.c
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  55. banned.h
  56. base85.c
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  58. bisect.c
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  64. bloom.c
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  66. branch.c
  67. branch.h
  68. builtin.h
  69. bulk-checkin.c
  70. bulk-checkin.h
  71. bundle-uri.c
  72. bundle-uri.h
  73. bundle.c
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  75. cache-tree.c
  76. cache-tree.h
  77. cbtree.c
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  79. chdir-notify.c
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  81. check-builtins.sh
  82. checkout.c
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  84. chunk-format.c
  85. chunk-format.h
  86. CODE_OF_CONDUCT.md
  87. color.c
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  89. column.c
  90. column.h
  91. combine-diff.c
  92. command-list.txt
  93. commit-graph.c
  94. commit-graph.h
  95. commit-reach.c
  96. commit-reach.h
  97. commit-slab-decl.h
  98. commit-slab-impl.h
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  100. commit.c
  101. commit.h
  102. common-main.c
  103. config.c
  104. config.h
  105. config.mak.dev
  106. config.mak.in
  107. config.mak.uname
  108. configure.ac
  109. connect.c
  110. connect.h
  111. connected.c
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  113. convert.c
  114. convert.h
  115. copy.c
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  117. COPYING
  118. credential.c
  119. credential.h
  120. csum-file.c
  121. csum-file.h
  122. ctype.c
  123. daemon.c
  124. date.c
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  126. decorate.c
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  128. delta-islands.c
  129. delta-islands.h
  130. delta.h
  131. detect-compiler
  132. diagnose.c
  133. diagnose.h
  134. diff-delta.c
  135. diff-lib.c
  136. diff-merges.c
  137. diff-merges.h
  138. diff-no-index.c
  139. diff.c
  140. diff.h
  141. diffcore-break.c
  142. diffcore-delta.c
  143. diffcore-order.c
  144. diffcore-pickaxe.c
  145. diffcore-rename.c
  146. diffcore-rotate.c
  147. diffcore.h
  148. dir-iterator.c
  149. dir-iterator.h
  150. dir.c
  151. dir.h
  152. editor.c
  153. editor.h
  154. entry.c
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  156. environment.c
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  158. exec-cmd.c
  159. exec-cmd.h
  160. fetch-negotiator.c
  161. fetch-negotiator.h
  162. fetch-pack.c
  163. fetch-pack.h
  164. fmt-merge-msg.c
  165. fmt-merge-msg.h
  166. fsck.c
  167. fsck.h
  168. fsmonitor--daemon.h
  169. fsmonitor-ipc.c
  170. fsmonitor-ipc.h
  171. fsmonitor-ll.h
  172. fsmonitor-path-utils.h
  173. fsmonitor-settings.c
  174. fsmonitor-settings.h
  175. fsmonitor.c
  176. fsmonitor.h
  177. generate-cmdlist.sh
  178. generate-configlist.sh
  179. generate-hooklist.sh
  180. gettext.c
  181. gettext.h
  182. git-archimport.perl
  183. git-compat-util.h
  184. git-curl-compat.h
  185. git-cvsexportcommit.perl
  186. git-cvsimport.perl
  187. git-cvsserver.perl
  188. git-difftool--helper.sh
  189. git-filter-branch.sh
  190. git-instaweb.sh
  191. git-merge-octopus.sh
  192. git-merge-one-file.sh
  193. git-merge-resolve.sh
  194. git-mergetool--lib.sh
  195. git-mergetool.sh
  196. git-p4.py
  197. git-quiltimport.sh
  198. git-request-pull.sh
  199. git-send-email.perl
  200. git-sh-i18n.sh
  201. git-sh-setup.sh
  202. git-submodule.sh
  203. git-svn.perl
  204. GIT-VERSION-GEN
  205. git-web--browse.sh
  206. git-zlib.c
  207. git-zlib.h
  208. git.c
  209. git.rc
  210. gpg-interface.c
  211. gpg-interface.h
  212. graph.c
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  214. grep.c
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  216. hash-ll.h
  217. hash-lookup.c
  218. hash-lookup.h
  219. hash.h
  220. hashmap.c
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  222. help.c
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  224. hex-ll.c
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  228. hook.c
  229. hook.h
  230. http-backend.c
  231. http-fetch.c
  232. http-push.c
  233. http-walker.c
  234. http.c
  235. http.h
  236. ident.c
  237. ident.h
  238. imap-send.c
  239. INSTALL
  240. iterator.h
  241. json-writer.c
  242. json-writer.h
  243. khash.h
  244. kwset.c
  245. kwset.h
  246. levenshtein.c
  247. levenshtein.h
  248. LGPL-2.1
  249. line-log.c
  250. line-log.h
  251. line-range.c
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  253. linear-assignment.c
  254. linear-assignment.h
  255. list-objects-filter-options.c
  256. list-objects-filter-options.h
  257. list-objects-filter.c
  258. list-objects-filter.h
  259. list-objects.c
  260. list-objects.h
  261. list.h
  262. lockfile.c
  263. lockfile.h
  264. log-tree.c
  265. log-tree.h
  266. ls-refs.c
  267. ls-refs.h
  268. mailinfo.c
  269. mailinfo.h
  270. mailmap.c
  271. mailmap.h
  272. Makefile
  273. match-trees.c
  274. match-trees.h
  275. mem-pool.c
  276. mem-pool.h
  277. merge-blobs.c
  278. merge-blobs.h
  279. merge-ll.c
  280. merge-ll.h
  281. merge-ort-wrappers.c
  282. merge-ort-wrappers.h
  283. merge-ort.c
  284. merge-ort.h
  285. merge-recursive.c
  286. merge-recursive.h
  287. merge.c
  288. merge.h
  289. mergesort.h
  290. midx.c
  291. midx.h
  292. name-hash.c
  293. name-hash.h
  294. neue
  295. notes-cache.c
  296. notes-cache.h
  297. notes-merge.c
  298. notes-merge.h
  299. notes-utils.c
  300. notes-utils.h
  301. notes.c
  302. notes.h
  303. object-file.c
  304. object-file.h
  305. object-name.c
  306. object-name.h
  307. object-store-ll.h
  308. object-store.h
  309. object.c
  310. object.h
  311. oid-array.c
  312. oid-array.h
  313. oidmap.c
  314. oidmap.h
  315. oidset.c
  316. oidset.h
  317. oidtree.c
  318. oidtree.h
  319. pack-bitmap-write.c
  320. pack-bitmap.c
  321. pack-bitmap.h
  322. pack-check.c
  323. pack-mtimes.c
  324. pack-mtimes.h
  325. pack-objects.c
  326. pack-objects.h
  327. pack-revindex.c
  328. pack-revindex.h
  329. pack-write.c
  330. pack.h
  331. packfile.c
  332. packfile.h
  333. pager.c
  334. pager.h
  335. parallel-checkout.c
  336. parallel-checkout.h
  337. parse-options-cb.c
  338. parse-options.c
  339. parse-options.h
  340. parse.c
  341. parse.h
  342. patch-delta.c
  343. patch-ids.c
  344. patch-ids.h
  345. path.c
  346. path.h
  347. pathspec.c
  348. pathspec.h
  349. pkt-line.c
  350. pkt-line.h
  351. preload-index.c
  352. preload-index.h
  353. pretty.c
  354. pretty.h
  355. prio-queue.c
  356. prio-queue.h
  357. progress.c
  358. progress.h
  359. promisor-remote.c
  360. promisor-remote.h
  361. prompt.c
  362. prompt.h
  363. protocol-caps.c
  364. protocol-caps.h
  365. protocol.c
  366. protocol.h
  367. prune-packed.c
  368. prune-packed.h
  369. quote.c
  370. quote.h
  371. range-diff.c
  372. range-diff.h
  373. reachable.c
  374. reachable.h
  375. read-cache-ll.h
  376. read-cache.c
  377. read-cache.h
  378. README.md
  379. rebase-interactive.c
  380. rebase-interactive.h
  381. rebase.c
  382. rebase.h
  383. ref-filter.c
  384. ref-filter.h
  385. reflog-walk.c
  386. reflog-walk.h
  387. reflog.c
  388. reflog.h
  389. refs.c
  390. refs.h
  391. refspec.c
  392. refspec.h
  393. remote-curl.c
  394. remote.c
  395. remote.h
  396. replace-object.c
  397. replace-object.h
  398. repo-settings.c
  399. repository.c
  400. repository.h
  401. rerere.c
  402. rerere.h
  403. reset.c
  404. reset.h
  405. resolve-undo.c
  406. resolve-undo.h
  407. revision.c
  408. revision.h
  409. run-command.c
  410. run-command.h
  411. sane-ctype.h
  412. scalar.c
  413. SECURITY.md
  414. send-pack.c
  415. send-pack.h
  416. sequencer.c
  417. sequencer.h
  418. serve.c
  419. serve.h
  420. server-info.c
  421. server-info.h
  422. setup.c
  423. setup.h
  424. sh-i18n--envsubst.c
  425. sha1dc_git.c
  426. sha1dc_git.h
  427. shallow.c
  428. shallow.h
  429. shared.mak
  430. shell.c
  431. shortlog.h
  432. sideband.c
  433. sideband.h
  434. sigchain.c
  435. sigchain.h
  436. simple-ipc.h
  437. sparse-index.c
  438. sparse-index.h
  439. split-index.c
  440. split-index.h
  441. stable-qsort.c
  442. statinfo.c
  443. statinfo.h
  444. strbuf.c
  445. strbuf.h
  446. streaming.c
  447. streaming.h
  448. string-list.c
  449. string-list.h
  450. strmap.c
  451. strmap.h
  452. strvec.c
  453. strvec.h
  454. sub-process.c
  455. sub-process.h
  456. submodule-config.c
  457. submodule-config.h
  458. submodule.c
  459. submodule.h
  460. symlinks.c
  461. symlinks.h
  462. tag.c
  463. tag.h
  464. tar.h
  465. tempfile.c
  466. tempfile.h
  467. thread-utils.c
  468. thread-utils.h
  469. tmp-objdir.c
  470. tmp-objdir.h
  471. trace.c
  472. trace.h
  473. trace2.c
  474. trace2.h
  475. trailer.c
  476. trailer.h
  477. transport-helper.c
  478. transport-internal.h
  479. transport.c
  480. transport.h
  481. tree-diff.c
  482. tree-walk.c
  483. tree-walk.h
  484. tree.c
  485. tree.h
  486. unicode-width.h
  487. unimplemented.sh
  488. unix-socket.c
  489. unix-socket.h
  490. unix-stream-server.c
  491. unix-stream-server.h
  492. unpack-trees.c
  493. unpack-trees.h
  494. upload-pack.c
  495. upload-pack.h
  496. url.c
  497. url.h
  498. urlmatch.c
  499. urlmatch.h
  500. usage.c
  501. userdiff.c
  502. userdiff.h
  503. utf8.c
  504. utf8.h
  505. varint.c
  506. varint.h
  507. version.c
  508. version.h
  509. versioncmp.c
  510. versioncmp.h
  511. walker.c
  512. walker.h
  513. wildmatch.c
  514. wildmatch.h
  515. worktree.c
  516. worktree.h
  517. wrap-for-bin.sh
  518. wrapper.c
  519. wrapper.h
  520. write-or-die.c
  521. write-or-die.h
  522. ws.c
  523. ws.h
  524. wt-status.c
  525. wt-status.h
  526. xdiff-interface.c
  527. xdiff-interface.h
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 and Documentation/CodingGuidelines).

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email with just “subscribe git” in the body to majordomo@vger.kernel.org (not the Git list). The mailing list archives are available at https://lore.kernel.org/git/, https://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