repack: extract `write_pack_opts_is_local()`

Similar to the previous commit, the functions `write_cruft_pack()` and
`write_filtered_pack()` both compute a "local" variable via the exact
same mechanism:

    const char *scratch;
    int local = skip_prefix(opts->destination, opts->packdir, &scratch);

Not only does this cause us to repeat the same pair of lines, it also
introduces an unnecessary "scratch" variable that is common between both
functions.

Instead of repeating ourselves, let's extract that functionality into a
new function in the repack.h API called "write_pack_opts_is_local()".
That function takes a pointer to a "struct write_pack_opts" (which has
as fields both "destination" and "packdir"), and can encapsulate the
dangling "scratch" field.

Extract that function and make it visible within the repack.h API, and
use it within both `write_cruft_pack()` and `write_filtered_pack()`.
While we're at it, match our modern conventions by returning a "bool"
instead of "int", and use `starts_with()` instead of `skip_prefix()` to
avoid storing the dummy "scratch" variable.

The remaining duplication (that is, that both `write_cruft_pack()` and
`write_filtered_pack()` still both call `write_pack_opts_is_local()`)
will be addressed in the following commit.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 files changed
tree: e746dbcddf57c1cdf288f582739ffd3e6672c6a0
  1. .github/
  2. bin-wrappers/
  3. block-sha1/
  4. builtin/
  5. ci/
  6. compat/
  7. compiler-tricks/
  8. contrib/
  9. Documentation/
  10. ewah/
  11. git-gui/
  12. gitk-git/
  13. gitweb/
  14. mergetools/
  15. negotiator/
  16. oss-fuzz/
  17. perl/
  18. po/
  19. refs/
  20. reftable/
  21. sha1/
  22. sha1dc/
  23. sha256/
  24. subprojects/
  25. t/
  26. templates/
  27. trace2/
  28. xdiff/
  29. .cirrus.yml
  30. .clang-format
  31. .editorconfig
  32. .gitattributes
  33. .gitignore
  34. .gitlab-ci.yml
  35. .gitmodules
  36. .mailmap
  37. .tsan-suppressions
  38. abspath.c
  39. abspath.h
  40. aclocal.m4
  41. add-interactive.c
  42. add-interactive.h
  43. add-patch.c
  44. advice.c
  45. advice.h
  46. alias.c
  47. alias.h
  48. alloc.c
  49. alloc.h
  50. apply.c
  51. apply.h
  52. archive-tar.c
  53. archive-zip.c
  54. archive.c
  55. archive.h
  56. attr.c
  57. attr.h
  58. banned.h
  59. base85.c
  60. base85.h
  61. bisect.c
  62. bisect.h
  63. blame.c
  64. blame.h
  65. blob.c
  66. blob.h
  67. bloom.c
  68. bloom.h
  69. branch.c
  70. branch.h
  71. builtin.h
  72. bulk-checkin.c
  73. bulk-checkin.h
  74. bundle-uri.c
  75. bundle-uri.h
  76. bundle.c
  77. bundle.h
  78. cache-tree.c
  79. cache-tree.h
  80. cbtree.c
  81. cbtree.h
  82. chdir-notify.c
  83. chdir-notify.h
  84. check-builtins.sh
  85. checkout.c
  86. checkout.h
  87. chunk-format.c
  88. chunk-format.h
  89. CODE_OF_CONDUCT.md
  90. color.c
  91. color.h
  92. column.c
  93. column.h
  94. combine-diff.c
  95. command-list.txt
  96. commit-graph.c
  97. commit-graph.h
  98. commit-reach.c
  99. commit-reach.h
  100. commit-slab-decl.h
  101. commit-slab-impl.h
  102. commit-slab.h
  103. commit.c
  104. commit.h
  105. common-exit.c
  106. common-init.c
  107. common-init.h
  108. common-main.c
  109. config.c
  110. config.h
  111. config.mak.dev
  112. config.mak.in
  113. config.mak.uname
  114. configure.ac
  115. connect.c
  116. connect.h
  117. connected.c
  118. connected.h
  119. convert.c
  120. convert.h
  121. copy.c
  122. copy.h
  123. COPYING
  124. credential.c
  125. credential.h
  126. csum-file.c
  127. csum-file.h
  128. ctype.c
  129. daemon.c
  130. date.c
  131. date.h
  132. decorate.c
  133. decorate.h
  134. delta-islands.c
  135. delta-islands.h
  136. delta.h
  137. detect-compiler
  138. diagnose.c
  139. diagnose.h
  140. diff-delta.c
  141. diff-lib.c
  142. diff-merges.c
  143. diff-merges.h
  144. diff-no-index.c
  145. diff.c
  146. diff.h
  147. diffcore-break.c
  148. diffcore-delta.c
  149. diffcore-order.c
  150. diffcore-pickaxe.c
  151. diffcore-rename.c
  152. diffcore-rotate.c
  153. diffcore.h
  154. dir-iterator.c
  155. dir-iterator.h
  156. dir.c
  157. dir.h
  158. editor.c
  159. editor.h
  160. entry.c
  161. entry.h
  162. environment.c
  163. environment.h
  164. exec-cmd.c
  165. exec-cmd.h
  166. fetch-negotiator.c
  167. fetch-negotiator.h
  168. fetch-pack.c
  169. fetch-pack.h
  170. fmt-merge-msg.c
  171. fmt-merge-msg.h
  172. for-each-ref.h
  173. fsck.c
  174. fsck.h
  175. fsmonitor--daemon.h
  176. fsmonitor-ipc.c
  177. fsmonitor-ipc.h
  178. fsmonitor-ll.h
  179. fsmonitor-path-utils.h
  180. fsmonitor-settings.c
  181. fsmonitor-settings.h
  182. fsmonitor.c
  183. fsmonitor.h
  184. generate-cmdlist.sh
  185. generate-configlist.sh
  186. generate-hooklist.sh
  187. generate-perl.sh
  188. generate-python.sh
  189. generate-script.sh
  190. gettext.c
  191. gettext.h
  192. git-archimport.perl
  193. GIT-BUILD-OPTIONS.in
  194. git-compat-util.h
  195. git-curl-compat.h
  196. git-cvsexportcommit.perl
  197. git-cvsimport.perl
  198. git-cvsserver.perl
  199. git-difftool--helper.sh
  200. git-filter-branch.sh
  201. git-instaweb.sh
  202. git-merge-octopus.sh
  203. git-merge-one-file.sh
  204. git-merge-resolve.sh
  205. git-mergetool--lib.sh
  206. git-mergetool.sh
  207. git-p4.py
  208. git-quiltimport.sh
  209. git-request-pull.sh
  210. git-send-email.perl
  211. git-sh-i18n.sh
  212. git-sh-setup.sh
  213. git-submodule.sh
  214. git-svn.perl
  215. GIT-VERSION-FILE.in
  216. GIT-VERSION-GEN
  217. git-web--browse.sh
  218. git-zlib.c
  219. git-zlib.h
  220. git.c
  221. git.rc.in
  222. gpg-interface.c
  223. gpg-interface.h
  224. graph.c
  225. graph.h
  226. grep.c
  227. grep.h
  228. hash-lookup.c
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  230. hash.c
  231. hash.h
  232. hashmap.c
  233. hashmap.h
  234. help.c
  235. help.h
  236. hex-ll.c
  237. hex-ll.h
  238. hex.c
  239. hex.h
  240. hook.c
  241. hook.h
  242. http-backend.c
  243. http-fetch.c
  244. http-push.c
  245. http-walker.c
  246. http.c
  247. http.h
  248. ident.c
  249. ident.h
  250. imap-send.c
  251. INSTALL
  252. iterator.h
  253. json-writer.c
  254. json-writer.h
  255. khash.h
  256. kwset.c
  257. kwset.h
  258. levenshtein.c
  259. levenshtein.h
  260. LGPL-2.1
  261. line-log.c
  262. line-log.h
  263. line-range.c
  264. line-range.h
  265. linear-assignment.c
  266. linear-assignment.h
  267. list-objects-filter-options.c
  268. list-objects-filter-options.h
  269. list-objects-filter.c
  270. list-objects-filter.h
  271. list-objects.c
  272. list-objects.h
  273. list.h
  274. lockfile.c
  275. lockfile.h
  276. log-tree.c
  277. log-tree.h
  278. loose.c
  279. loose.h
  280. ls-refs.c
  281. ls-refs.h
  282. mailinfo.c
  283. mailinfo.h
  284. mailmap.c
  285. mailmap.h
  286. Makefile
  287. match-trees.c
  288. match-trees.h
  289. mem-pool.c
  290. mem-pool.h
  291. merge-blobs.c
  292. merge-blobs.h
  293. merge-ll.c
  294. merge-ll.h
  295. merge-ort-wrappers.c
  296. merge-ort-wrappers.h
  297. merge-ort.c
  298. merge-ort.h
  299. merge.c
  300. merge.h
  301. mergesort.h
  302. meson.build
  303. meson_options.txt
  304. midx-write.c
  305. midx.c
  306. midx.h
  307. name-hash.c
  308. name-hash.h
  309. notes-cache.c
  310. notes-cache.h
  311. notes-merge.c
  312. notes-merge.h
  313. notes-utils.c
  314. notes-utils.h
  315. notes.c
  316. notes.h
  317. object-file-convert.c
  318. object-file-convert.h
  319. object-file.c
  320. object-file.h
  321. object-name.c
  322. object-name.h
  323. object.c
  324. object.h
  325. odb.c
  326. odb.h
  327. oid-array.c
  328. oid-array.h
  329. oidmap.c
  330. oidmap.h
  331. oidset.c
  332. oidset.h
  333. oidtree.c
  334. oidtree.h
  335. pack-bitmap-write.c
  336. pack-bitmap.c
  337. pack-bitmap.h
  338. pack-check.c
  339. pack-mtimes.c
  340. pack-mtimes.h
  341. pack-objects.c
  342. pack-objects.h
  343. pack-revindex.c
  344. pack-revindex.h
  345. pack-write.c
  346. pack.h
  347. packfile.c
  348. packfile.h
  349. pager.c
  350. pager.h
  351. parallel-checkout.c
  352. parallel-checkout.h
  353. parse-options-cb.c
  354. parse-options.c
  355. parse-options.h
  356. parse.c
  357. parse.h
  358. patch-delta.c
  359. patch-ids.c
  360. patch-ids.h
  361. path-walk.c
  362. path-walk.h
  363. path.c
  364. path.h
  365. pathspec.c
  366. pathspec.h
  367. pkt-line.c
  368. pkt-line.h
  369. preload-index.c
  370. preload-index.h
  371. pretty.c
  372. pretty.h
  373. prio-queue.c
  374. prio-queue.h
  375. progress.c
  376. progress.h
  377. promisor-remote.c
  378. promisor-remote.h
  379. prompt.c
  380. prompt.h
  381. protocol-caps.c
  382. protocol-caps.h
  383. protocol.c
  384. protocol.h
  385. prune-packed.c
  386. prune-packed.h
  387. pseudo-merge.c
  388. pseudo-merge.h
  389. quote.c
  390. quote.h
  391. range-diff.c
  392. range-diff.h
  393. reachable.c
  394. reachable.h
  395. read-cache-ll.h
  396. read-cache.c
  397. read-cache.h
  398. README.md
  399. rebase-interactive.c
  400. rebase-interactive.h
  401. rebase.c
  402. rebase.h
  403. ref-filter.c
  404. ref-filter.h
  405. reflog-walk.c
  406. reflog-walk.h
  407. reflog.c
  408. reflog.h
  409. refs.c
  410. refs.h
  411. refspec.c
  412. refspec.h
  413. remote-curl.c
  414. remote.c
  415. remote.h
  416. repack-geometry.c
  417. repack-midx.c
  418. repack-promisor.c
  419. repack.c
  420. repack.h
  421. replace-object.c
  422. replace-object.h
  423. repo-settings.c
  424. repo-settings.h
  425. repository.c
  426. repository.h
  427. rerere.c
  428. rerere.h
  429. reset.c
  430. reset.h
  431. resolve-undo.c
  432. resolve-undo.h
  433. revision.c
  434. revision.h
  435. run-command.c
  436. run-command.h
  437. sane-ctype.h
  438. scalar.c
  439. SECURITY.md
  440. send-pack.c
  441. send-pack.h
  442. sequencer.c
  443. sequencer.h
  444. serve.c
  445. serve.h
  446. server-info.c
  447. server-info.h
  448. setup.c
  449. setup.h
  450. sh-i18n--envsubst.c
  451. sha1dc_git.c
  452. sha1dc_git.h
  453. shallow.c
  454. shallow.h
  455. shared.mak
  456. shell.c
  457. shortlog.h
  458. sideband.c
  459. sideband.h
  460. sigchain.c
  461. sigchain.h
  462. simple-ipc.h
  463. sparse-index.c
  464. sparse-index.h
  465. split-index.c
  466. split-index.h
  467. stable-qsort.c
  468. statinfo.c
  469. statinfo.h
  470. strbuf.c
  471. strbuf.h
  472. streaming.c
  473. streaming.h
  474. string-list.c
  475. string-list.h
  476. strmap.c
  477. strmap.h
  478. strvec.c
  479. strvec.h
  480. sub-process.c
  481. sub-process.h
  482. submodule-config.c
  483. submodule-config.h
  484. submodule.c
  485. submodule.h
  486. symlinks.c
  487. symlinks.h
  488. tag.c
  489. tag.h
  490. tar.h
  491. tempfile.c
  492. tempfile.h
  493. thread-utils.c
  494. thread-utils.h
  495. tmp-objdir.c
  496. tmp-objdir.h
  497. trace.c
  498. trace.h
  499. trace2.c
  500. trace2.h
  501. trailer.c
  502. trailer.h
  503. transport-helper.c
  504. transport-internal.h
  505. transport.c
  506. transport.h
  507. tree-diff.c
  508. tree-walk.c
  509. tree-walk.h
  510. tree.c
  511. tree.h
  512. unicode-width.h
  513. unimplemented.sh
  514. unix-socket.c
  515. unix-socket.h
  516. unix-stream-server.c
  517. unix-stream-server.h
  518. unpack-trees.c
  519. unpack-trees.h
  520. upload-pack.c
  521. upload-pack.h
  522. url.c
  523. url.h
  524. urlmatch.c
  525. urlmatch.h
  526. usage.c
  527. userdiff.c
  528. userdiff.h
  529. utf8.c
  530. utf8.h
  531. varint.c
  532. varint.h
  533. version-def.h.in
  534. version.c
  535. version.h
  536. versioncmp.c
  537. versioncmp.h
  538. walker.c
  539. walker.h
  540. wildmatch.c
  541. wildmatch.h
  542. worktree.c
  543. worktree.h
  544. wrapper.c
  545. wrapper.h
  546. write-or-die.c
  547. write-or-die.h
  548. ws.c
  549. ws.h
  550. wt-status.c
  551. wt-status.h
  552. xdiff-interface.c
  553. 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.adoc to get started, then see Documentation/giteveryday.adoc for a useful minimum set of commands, and Documentation/git-<commandname>.adoc 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.adoc (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).

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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