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chromium / external / gitster / git-htmldocs / 6bba246d46431b32c3be3676fb727605cf6d2847 / . / git-gc.html
blob: 40979957a6a0ad432f2d689602fbb813465fc1d0 [file] [log] [blame]
Junio C Hamano85151f32018-04-10 00:52:26[diff] [blame]1<?xml version="1.0" encoding="UTF-8"?>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
3 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
4<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
5<head>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]6<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
Junio C Hamanoc10e7542022-05-04 18:25:57[diff] [blame]7<meta name="generator" content="AsciiDoc 10.1.4" />
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]8<title>git-gc(1)</title>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]9<style type="text/css">
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]10/* Shared CSS for AsciiDoc xhtml11 and html5 backends */
11
12/* Default font. */
13body {
14 font-family: Georgia,serif;
15}
16
17/* Title font. */
18h1, h2, h3, h4, h5, h6,
19div.title, caption.title,
20thead, p.table.header,
21#toctitle,
22#author, #revnumber, #revdate, #revremark,
23#footer {
24 font-family: Arial,Helvetica,sans-serif;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]25}
26
27body {
28 margin: 1em 5% 1em 5%;
29}
30
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]31a {
32 color: blue;
33 text-decoration: underline;
34}
35a:visited {
36 color: fuchsia;
37}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]38
39em {
40 font-style: italic;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]41 color: navy;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]42}
43
44strong {
45 font-weight: bold;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]46 color: #083194;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]47}
48
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]49h1, h2, h3, h4, h5, h6 {
50 color: #527bbd;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]51 margin-top: 1.2em;
52 margin-bottom: 0.5em;
53 line-height: 1.3;
54}
55
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]56h1, h2, h3 {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]57 border-bottom: 2px solid silver;
58}
59h2 {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]60 padding-top: 0.5em;
61}
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]62h3 {
63 float: left;
64}
65h3 + * {
66 clear: left;
67}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]68h5 {
69 font-size: 1.0em;
70}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]71
72div.sectionbody {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]73 margin-left: 0;
74}
75
76hr {
77 border: 1px solid silver;
78}
79
80p {
81 margin-top: 0.5em;
82 margin-bottom: 0.5em;
83}
84
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]85ul, ol, li > p {
86 margin-top: 0;
87}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]88ul > li { color: #aaa; }
89ul > li > * { color: black; }
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]90
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]91.monospaced, code, pre {
92 font-family: "Courier New", Courier, monospace;
93 font-size: inherit;
94 color: navy;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]95 padding: 0;
96 margin: 0;
97}
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]98pre {
99 white-space: pre-wrap;
100}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]101
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]102#author {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]103 color: #527bbd;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]104 font-weight: bold;
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]105 font-size: 1.1em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]106}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]107#email {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]108}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]109#revnumber, #revdate, #revremark {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]110}
111
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]112#footer {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]113 font-size: small;
114 border-top: 2px solid silver;
115 padding-top: 0.5em;
116 margin-top: 4.0em;
117}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]118#footer-text {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]119 float: left;
120 padding-bottom: 0.5em;
121}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]122#footer-badges {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]123 float: right;
124 padding-bottom: 0.5em;
125}
126
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]127#preamble {
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]128 margin-top: 1.5em;
129 margin-bottom: 1.5em;
130}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]131div.imageblock, div.exampleblock, div.verseblock,
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]132div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
133div.admonitionblock {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]134 margin-top: 1.0em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]135 margin-bottom: 1.5em;
136}
137div.admonitionblock {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]138 margin-top: 2.0em;
139 margin-bottom: 2.0em;
140 margin-right: 10%;
141 color: #606060;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]142}
143
144div.content { /* Block element content. */
145 padding: 0;
146}
147
148/* Block element titles. */
149div.title, caption.title {
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]150 color: #527bbd;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]151 font-weight: bold;
152 text-align: left;
153 margin-top: 1.0em;
154 margin-bottom: 0.5em;
155}
156div.title + * {
157 margin-top: 0;
158}
159
160td div.title:first-child {
161 margin-top: 0.0em;
162}
163div.content div.title:first-child {
164 margin-top: 0.0em;
165}
166div.content + div.title {
167 margin-top: 0.0em;
168}
169
170div.sidebarblock > div.content {
171 background: #ffffee;
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]172 border: 1px solid #dddddd;
173 border-left: 4px solid #f0f0f0;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]174 padding: 0.5em;
175}
176
177div.listingblock > div.content {
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]178 border: 1px solid #dddddd;
179 border-left: 5px solid #f0f0f0;
180 background: #f8f8f8;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]181 padding: 0.5em;
182}
183
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]184div.quoteblock, div.verseblock {
185 padding-left: 1.0em;
186 margin-left: 1.0em;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]187 margin-right: 10%;
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]188 border-left: 5px solid #f0f0f0;
189 color: #888;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]190}
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]191
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]192div.quoteblock > div.attribution {
193 padding-top: 0.5em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]194 text-align: right;
195}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]196
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]197div.verseblock > pre.content {
198 font-family: inherit;
199 font-size: inherit;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]200}
201div.verseblock > div.attribution {
202 padding-top: 0.75em;
203 text-align: left;
204}
205/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]206div.verseblock + div.attribution {
207 text-align: left;
208}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]209
210div.admonitionblock .icon {
211 vertical-align: top;
212 font-size: 1.1em;
213 font-weight: bold;
214 text-decoration: underline;
215 color: #527bbd;
216 padding-right: 0.5em;
217}
218div.admonitionblock td.content {
219 padding-left: 0.5em;
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]220 border-left: 3px solid #dddddd;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]221}
222
223div.exampleblock > div.content {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]224 border-left: 3px solid #dddddd;
225 padding-left: 0.5em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]226}
227
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]228div.imageblock div.content { padding-left: 0; }
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]229span.image img { border-style: none; vertical-align: text-bottom; }
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]230a.image:visited { color: white; }
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]231
232dl {
233 margin-top: 0.8em;
234 margin-bottom: 0.8em;
235}
236dt {
237 margin-top: 0.5em;
238 margin-bottom: 0;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]239 font-style: normal;
240 color: navy;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]241}
242dd > *:first-child {
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]243 margin-top: 0.1em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]244}
245
246ul, ol {
247 list-style-position: outside;
248}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]249ol.arabic {
250 list-style-type: decimal;
251}
252ol.loweralpha {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]253 list-style-type: lower-alpha;
254}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]255ol.upperalpha {
256 list-style-type: upper-alpha;
257}
258ol.lowerroman {
259 list-style-type: lower-roman;
260}
261ol.upperroman {
262 list-style-type: upper-roman;
263}
264
265div.compact ul, div.compact ol,
266div.compact p, div.compact p,
267div.compact div, div.compact div {
268 margin-top: 0.1em;
269 margin-bottom: 0.1em;
270}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]271
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]272tfoot {
273 font-weight: bold;
274}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]275td > div.verse {
276 white-space: pre;
277}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]278
279div.hdlist {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]280 margin-top: 0.8em;
281 margin-bottom: 0.8em;
282}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]283div.hdlist tr {
284 padding-bottom: 15px;
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]285}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]286dt.hdlist1.strong, td.hdlist1.strong {
287 font-weight: bold;
288}
289td.hdlist1 {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]290 vertical-align: top;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]291 font-style: normal;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]292 padding-right: 0.8em;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]293 color: navy;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]294}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]295td.hdlist2 {
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]296 vertical-align: top;
297}
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]298div.hdlist.compact tr {
299 margin: 0;
300 padding-bottom: 0;
301}
302
303.comment {
304 background: yellow;
305}
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]306
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]307.footnote, .footnoteref {
308 font-size: 0.8em;
309}
310
311span.footnote, span.footnoteref {
312 vertical-align: super;
313}
314
315#footnotes {
316 margin: 20px 0 20px 0;
317 padding: 7px 0 0 0;
318}
319
320#footnotes div.footnote {
321 margin: 0 0 5px 0;
322}
323
324#footnotes hr {
325 border: none;
326 border-top: 1px solid silver;
327 height: 1px;
328 text-align: left;
329 margin-left: 0;
330 width: 20%;
331 min-width: 100px;
332}
333
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]334div.colist td {
335 padding-right: 0.5em;
336 padding-bottom: 0.3em;
337 vertical-align: top;
338}
339div.colist td img {
340 margin-top: 0.3em;
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]341}
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]342
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]343@media print {
344 #footer-badges { display: none; }
345}
346
347#toc {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]348 margin-bottom: 2.5em;
349}
350
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]351#toctitle {
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]352 color: #527bbd;
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]353 font-size: 1.1em;
354 font-weight: bold;
355 margin-top: 1.0em;
356 margin-bottom: 0.1em;
357}
358
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]359div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]360 margin-top: 0;
361 margin-bottom: 0;
362}
363div.toclevel2 {
364 margin-left: 2em;
365 font-size: 0.9em;
366}
367div.toclevel3 {
368 margin-left: 4em;
369 font-size: 0.9em;
370}
371div.toclevel4 {
372 margin-left: 6em;
373 font-size: 0.9em;
374}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]375
376span.aqua { color: aqua; }
377span.black { color: black; }
378span.blue { color: blue; }
379span.fuchsia { color: fuchsia; }
380span.gray { color: gray; }
381span.green { color: green; }
382span.lime { color: lime; }
383span.maroon { color: maroon; }
384span.navy { color: navy; }
385span.olive { color: olive; }
386span.purple { color: purple; }
387span.red { color: red; }
388span.silver { color: silver; }
389span.teal { color: teal; }
390span.white { color: white; }
391span.yellow { color: yellow; }
392
393span.aqua-background { background: aqua; }
394span.black-background { background: black; }
395span.blue-background { background: blue; }
396span.fuchsia-background { background: fuchsia; }
397span.gray-background { background: gray; }
398span.green-background { background: green; }
399span.lime-background { background: lime; }
400span.maroon-background { background: maroon; }
401span.navy-background { background: navy; }
402span.olive-background { background: olive; }
403span.purple-background { background: purple; }
404span.red-background { background: red; }
405span.silver-background { background: silver; }
406span.teal-background { background: teal; }
407span.white-background { background: white; }
408span.yellow-background { background: yellow; }
409
410span.big { font-size: 2em; }
411span.small { font-size: 0.6em; }
412
413span.underline { text-decoration: underline; }
414span.overline { text-decoration: overline; }
415span.line-through { text-decoration: line-through; }
416
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]417div.unbreakable { page-break-inside: avoid; }
418
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]419
420/*
421 * xhtml11 specific
422 *
423 * */
424
425div.tableblock {
426 margin-top: 1.0em;
427 margin-bottom: 1.5em;
428}
429div.tableblock > table {
430 border: 3px solid #527bbd;
431}
432thead, p.table.header {
433 font-weight: bold;
434 color: #527bbd;
435}
436p.table {
437 margin-top: 0;
438}
Junio C Hamano725b0da2020-01-22 22:02:40[diff] [blame]439/* Because the table frame attribute is overridden by CSS in most browsers. */
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]440div.tableblock > table[frame="void"] {
441 border-style: none;
442}
443div.tableblock > table[frame="hsides"] {
444 border-left-style: none;
445 border-right-style: none;
446}
447div.tableblock > table[frame="vsides"] {
448 border-top-style: none;
449 border-bottom-style: none;
450}
451
452
453/*
454 * html5 specific
455 *
456 * */
457
458table.tableblock {
459 margin-top: 1.0em;
460 margin-bottom: 1.5em;
461}
462thead, p.tableblock.header {
463 font-weight: bold;
464 color: #527bbd;
465}
466p.tableblock {
467 margin-top: 0;
468}
469table.tableblock {
470 border-width: 3px;
471 border-spacing: 0px;
472 border-style: solid;
473 border-color: #527bbd;
474 border-collapse: collapse;
475}
476th.tableblock, td.tableblock {
477 border-width: 1px;
478 padding: 4px;
479 border-style: solid;
480 border-color: #527bbd;
481}
482
483table.tableblock.frame-topbot {
484 border-left-style: hidden;
485 border-right-style: hidden;
486}
487table.tableblock.frame-sides {
488 border-top-style: hidden;
489 border-bottom-style: hidden;
490}
491table.tableblock.frame-none {
492 border-style: hidden;
493}
494
495th.tableblock.halign-left, td.tableblock.halign-left {
496 text-align: left;
497}
498th.tableblock.halign-center, td.tableblock.halign-center {
499 text-align: center;
500}
501th.tableblock.halign-right, td.tableblock.halign-right {
502 text-align: right;
503}
504
505th.tableblock.valign-top, td.tableblock.valign-top {
506 vertical-align: top;
507}
508th.tableblock.valign-middle, td.tableblock.valign-middle {
509 vertical-align: middle;
510}
511th.tableblock.valign-bottom, td.tableblock.valign-bottom {
512 vertical-align: bottom;
513}
514
515
516/*
517 * manpage specific
518 *
519 * */
520
521body.manpage h1 {
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]522 padding-top: 0.5em;
523 padding-bottom: 0.5em;
524 border-top: 2px solid silver;
525 border-bottom: 2px solid silver;
526}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]527body.manpage h2 {
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]528 border-style: none;
529}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]530body.manpage div.sectionbody {
531 margin-left: 3em;
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]532}
533
534@media print {
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]535 body.manpage div#toc { display: none; }
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]536}
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]537
538
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Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]731asciidoc.install();
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Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]734</head>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]735<body class="manpage">
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]736<div id="header">
737<h1>
738git-gc(1) Manual Page
739</h1>
740<h2>NAME</h2>
741<div class="sectionbody">
742<p>git-gc -
743 Cleanup unnecessary files and optimize the local repository
744</p>
745</div>
746</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]747<div id="content">
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]748<div class="sect1">
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]749<h2 id="_synopsis">SYNOPSIS</h2>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]750<div class="sectionbody">
Junio C Hamano15567bc2011-07-23 00:51:59[diff] [blame]751<div class="verseblock">
Junio C Hamanob9d9d902018-05-23 07:07:42[diff] [blame]752<pre class="content"><em>git gc</em> [--aggressive] [--auto] [--quiet] [--prune=&lt;date&gt; | --no-prune] [--force] [--keep-largest-pack]</pre>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]753<div class="attribution">
Junio C Hamano15567bc2011-07-23 00:51:59[diff] [blame]754</div></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]755</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]756</div>
757<div class="sect1">
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]758<h2 id="_description">DESCRIPTION</h2>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]759<div class="sectionbody">
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]760<div class="paragraph"><p>Runs a number of housekeeping tasks within the current repository,
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]761such as compressing file revisions (to reduce disk space and increase
Junio C Hamano85151f32018-04-10 00:52:26[diff] [blame]762performance), removing unreachable objects which may have been
763created from prior invocations of <em>git add</em>, packing refs, pruning
Junio C Hamanoa4df8ed2018-10-26 06:37:13[diff] [blame]764reflog, rerere metadata or stale working trees. May also update ancillary
765indexes such as the commit-graph.</p></div>
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]766<div class="paragraph"><p>When common porcelain operations that create objects are run, they
767will check whether the repository has grown substantially since the
768last maintenance, and if so run <code>git gc</code> automatically. See <code>gc.auto</code>
769below for how to disable this behavior.</p></div>
770<div class="paragraph"><p>Running <code>git gc</code> manually should only be needed when adding objects to
771a repository without regularly running such porcelain commands, to do
772a one-off repository optimization, or e.g. to clean up a suboptimal
773mass-import. See the "PACKFILE OPTIMIZATION" section in
774<a href="git-fast-import.html">git-fast-import(1)</a> for more details on the import case.</p></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]775</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]776</div>
777<div class="sect1">
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]778<h2 id="_options">OPTIONS</h2>
Junio C Hamanof65d9282007-01-22 09:00:13[diff] [blame]779<div class="sectionbody">
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]780<div class="dlist"><dl>
781<dt class="hdlist1">
Junio C Hamanof2ce2972007-05-20 19:12:09[diff] [blame]782--aggressive
783</dt>
784<dd>
785<p>
Junio C Hamano1aa40d22010-01-21 17:46:43[diff] [blame]786 Usually <em>git gc</em> runs very quickly while providing good disk
Junio C Hamano679d22d2007-06-02 21:13:44[diff] [blame]787 space utilization and performance. This option will cause
Junio C Hamano1aa40d22010-01-21 17:46:43[diff] [blame]788 <em>git gc</em> to more aggressively optimize the repository at the expense
Junio C Hamanof2ce2972007-05-20 19:12:09[diff] [blame]789 of taking much more time. The effects of this optimization are
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]790 mostly persistent. See the "AGGRESSIVE" section below for details.
Junio C Hamanof2ce2972007-05-20 19:12:09[diff] [blame]791</p>
792</dd>
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]793<dt class="hdlist1">
Junio C Hamano1b50ce92007-10-03 12:05:53[diff] [blame]794--auto
795</dt>
796<dd>
797<p>
Junio C Hamano1aa40d22010-01-21 17:46:43[diff] [blame]798 With this option, <em>git gc</em> checks whether any housekeeping is
Junio C Hamano764a6672007-10-23 01:23:31[diff] [blame]799 required; if not, it exits without performing any work.
Junio C Hamano1b50ce92007-10-03 12:05:53[diff] [blame]800</p>
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]801<div class="paragraph"><p>See the <code>gc.auto</code> option in the "CONFIGURATION" section below for how
802this heuristic works.</p></div>
803<div class="paragraph"><p>Once housekeeping is triggered by exceeding the limits of
804configuration options such as <code>gc.auto</code> and <code>gc.autoPackLimit</code>, all
Junio C Hamano85151f32018-04-10 00:52:26[diff] [blame]805other housekeeping tasks (e.g. rerere, working trees, reflog&#8230;) will
806be performed as well.</p></div>
Junio C Hamano1b50ce92007-10-03 12:05:53[diff] [blame]807</dd>
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]808<dt class="hdlist1">
Junio C Hamanoc926f622022-06-03 22:26:23[diff] [blame]809--cruft
810</dt>
811<dd>
812<p>
813 When expiring unreachable objects, pack them separately into a
Junio C Hamano5af7a892022-06-22 19:24:33[diff] [blame]814 cruft pack instead of storing them as loose objects.
Junio C Hamanoc926f622022-06-03 22:26:23[diff] [blame]815</p>
816</dd>
817<dt class="hdlist1">
Junio C Hamano8bc410e2009-02-15 10:38:19[diff] [blame]818--prune=&lt;date&gt;
819</dt>
820<dd>
821<p>
822 Prune loose objects older than date (default is 2 weeks ago,
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]823 overridable by the config variable <code>gc.pruneExpire</code>).
Junio C Hamanodecc7312019-03-11 09:02:54[diff] [blame]824 --prune=now prunes loose objects regardless of their age and
Junio C Hamano56ace3d2017-01-10 23:43:41[diff] [blame]825 increases the risk of corruption if another process is writing to
826 the repository concurrently; see "NOTES" below. --prune is on by
827 default.
Junio C Hamano8bc410e2009-02-15 10:38:19[diff] [blame]828</p>
829</dd>
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]830<dt class="hdlist1">
Junio C Hamano8bc410e2009-02-15 10:38:19[diff] [blame]831--no-prune
832</dt>
833<dd>
834<p>
835 Do not prune any loose objects.
836</p>
837</dd>
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]838<dt class="hdlist1">
Junio C Hamano69a98582008-03-01 18:42:18[diff] [blame]839--quiet
840</dt>
841<dd>
842<p>
843 Suppress all progress reports.
844</p>
845</dd>
Junio C Hamano535ed7a2013-09-04 20:35:57[diff] [blame]846<dt class="hdlist1">
847--force
848</dt>
849<dd>
850<p>
Junio C Hamanoc14e6ad2014-10-31 20:25:53[diff] [blame]851 Force <code>git gc</code> to run even if there may be another <code>git gc</code>
Junio C Hamano535ed7a2013-09-04 20:35:57[diff] [blame]852 instance running on this repository.
853</p>
854</dd>
Junio C Hamanob9d9d902018-05-23 07:07:42[diff] [blame]855<dt class="hdlist1">
856--keep-largest-pack
857</dt>
858<dd>
859<p>
860 All packs except the largest pack and those marked with a
861 <code>.keep</code> files are consolidated into a single pack. When this
862 option is used, <code>gc.bigPackThreshold</code> is ignored.
863</p>
864</dd>
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]865</dl></div>
Junio C Hamanof65d9282007-01-22 09:00:13[diff] [blame]866</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]867</div>
868<div class="sect1">
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]869<h2 id="_aggressive">AGGRESSIVE</h2>
870<div class="sectionbody">
871<div class="paragraph"><p>When the <code>--aggressive</code> option is supplied, <a href="git-repack.html">git-repack(1)</a> will
872be invoked with the <code>-f</code> flag, which in turn will pass
873<code>--no-reuse-delta</code> to <a href="git-pack-objects.html">git-pack-objects(1)</a>. This will throw
874away any existing deltas and re-compute them, at the expense of
875spending much more time on the repacking.</p></div>
876<div class="paragraph"><p>The effects of this are mostly persistent, e.g. when packs and loose
877objects are coalesced into one another pack the existing deltas in
878that pack might get re-used, but there are also various cases where we
879might pick a sub-optimal delta from a newer pack instead.</p></div>
880<div class="paragraph"><p>Furthermore, supplying <code>--aggressive</code> will tweak the <code>--depth</code> and
881<code>--window</code> options passed to <a href="git-repack.html">git-repack(1)</a>. See the
882<code>gc.aggressiveDepth</code> and <code>gc.aggressiveWindow</code> settings below. By
883using a larger window size we&#8217;re more likely to find more optimal
884deltas.</p></div>
885<div class="paragraph"><p>It&#8217;s probably not worth it to use this option on a given repository
886without running tailored performance benchmarks on it. It takes a lot
887more time, and the resulting space/delta optimization may or may not
888be worth it. Not using this at all is the right trade-off for most
889users and their repositories.</p></div>
890</div>
891</div>
892<div class="sect1">
Junio C Hamanob9d9d902018-05-23 07:07:42[diff] [blame]893<h2 id="_configuration">CONFIGURATION</h2>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]894<div class="sectionbody">
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]895<div class="paragraph"><p>The below documentation is the same as what&#8217;s found in
896<a href="git-config.html">git-config(1)</a>:</p></div>
897<div class="dlist"><dl>
898<dt class="hdlist1">
899gc.aggressiveDepth
900</dt>
901<dd>
902<p>
903 The depth parameter used in the delta compression
904 algorithm used by <em>git gc --aggressive</em>. This defaults
905 to 50, which is the default for the <code>--depth</code> option when
906 <code>--aggressive</code> isn&#8217;t in use.
907</p>
908<div class="paragraph"><p>See the documentation for the <code>--depth</code> option in
909<a href="git-repack.html">git-repack(1)</a> for more details.</p></div>
910</dd>
911<dt class="hdlist1">
912gc.aggressiveWindow
913</dt>
914<dd>
915<p>
916 The window size parameter used in the delta compression
917 algorithm used by <em>git gc --aggressive</em>. This defaults
918 to 250, which is a much more aggressive window size than
919 the default <code>--window</code> of 10.
920</p>
921<div class="paragraph"><p>See the documentation for the <code>--window</code> option in
922<a href="git-repack.html">git-repack(1)</a> for more details.</p></div>
923</dd>
924<dt class="hdlist1">
925gc.auto
926</dt>
927<dd>
928<p>
929 When there are approximately more than this many loose
930 objects in the repository, <code>git gc --auto</code> will pack them.
931 Some Porcelain commands use this command to perform a
932 light-weight garbage collection from time to time. The
933 default value is 6700.
934</p>
935<div class="paragraph"><p>Setting this to 0 disables not only automatic packing based on the
936number of loose objects, but any other heuristic <code>git gc --auto</code> will
937otherwise use to determine if there&#8217;s work to do, such as
938<code>gc.autoPackLimit</code>.</p></div>
939</dd>
940<dt class="hdlist1">
941gc.autoPackLimit
942</dt>
943<dd>
944<p>
945 When there are more than this many packs that are not
946 marked with <code>*.keep</code> file in the repository, <code>git gc
947 --auto</code> consolidates them into one larger pack. The
948 default value is 50. Setting this to 0 disables it.
949 Setting <code>gc.auto</code> to 0 will also disable this.
950</p>
951<div class="paragraph"><p>See the <code>gc.bigPackThreshold</code> configuration variable below. When in
952use, it&#8217;ll affect how the auto pack limit works.</p></div>
953</dd>
954<dt class="hdlist1">
955gc.autoDetach
956</dt>
957<dd>
958<p>
959 Make <code>git gc --auto</code> return immediately and run in background
960 if the system supports it. Default is true.
961</p>
962</dd>
963<dt class="hdlist1">
964gc.bigPackThreshold
965</dt>
966<dd>
967<p>
968 If non-zero, all packs larger than this limit are kept when
Junio C Hamano85243982020-12-01 04:47:38[diff] [blame]969 <code>git gc</code> is run. This is very similar to <code>--keep-largest-pack</code>
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]970 except that all packs that meet the threshold are kept, not
Junio C Hamano85243982020-12-01 04:47:38[diff] [blame]971 just the largest pack. Defaults to zero. Common unit suffixes of
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]972 <em>k</em>, <em>m</em>, or <em>g</em> are supported.
973</p>
974<div class="paragraph"><p>Note that if the number of kept packs is more than gc.autoPackLimit,
975this configuration variable is ignored, all packs except the base pack
976will be repacked. After this the number of packs should go below
977gc.autoPackLimit and gc.bigPackThreshold should be respected again.</p></div>
978<div class="paragraph"><p>If the amount of memory estimated for <code>git repack</code> to run smoothly is
979not available and <code>gc.bigPackThreshold</code> is not set, the largest pack
980will also be excluded (this is the equivalent of running <code>git gc</code> with
Junio C Hamano85243982020-12-01 04:47:38[diff] [blame]981<code>--keep-largest-pack</code>).</p></div>
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]982</dd>
983<dt class="hdlist1">
984gc.writeCommitGraph
985</dt>
986<dd>
987<p>
988 If true, then gc will rewrite the commit-graph file when
989 <a href="git-gc.html">git-gc(1)</a> is run. When using <code>git gc --auto</code>
990 the commit-graph will be updated if housekeeping is
Junio C Hamanocb705392019-09-18 19:30:01[diff] [blame]991 required. Default is true. See <a href="git-commit-graph.html">git-commit-graph(1)</a>
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]992 for details.
993</p>
994</dd>
995<dt class="hdlist1">
996gc.logExpiry
997</dt>
998<dd>
999<p>
1000 If the file gc.log exists, then <code>git gc --auto</code> will print
1001 its content and exit with status zero instead of running
1002 unless that file is more than <em>gc.logExpiry</em> old. Default is
1003 "1.day". See <code>gc.pruneExpire</code> for more ways to specify its
1004 value.
1005</p>
1006</dd>
1007<dt class="hdlist1">
1008gc.packRefs
1009</dt>
1010<dd>
1011<p>
1012 Running <code>git pack-refs</code> in a repository renders it
1013 unclonable by Git versions prior to 1.5.1.2 over dumb
1014 transports such as HTTP. This variable determines whether
1015 <em>git gc</em> runs <code>git pack-refs</code>. This can be set to <code>notbare</code>
1016 to enable it within all non-bare repos or it can be set to a
1017 boolean value. The default is <code>true</code>.
1018</p>
1019</dd>
1020<dt class="hdlist1">
Junio C Hamanoc926f622022-06-03 22:26:23[diff] [blame]1021gc.cruftPacks
1022</dt>
1023<dd>
1024<p>
1025 Store unreachable objects in a cruft pack (see
1026 <a href="git-repack.html">git-repack(1)</a>) instead of as loose objects. The default
1027 is <code>false</code>.
1028</p>
1029</dd>
1030<dt class="hdlist1">
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]1031gc.pruneExpire
1032</dt>
1033<dd>
1034<p>
Junio C Hamanoc926f622022-06-03 22:26:23[diff] [blame]1035 When <em>git gc</em> is run, it will call <em>prune --expire 2.weeks.ago</em>
1036 (and <em>repack --cruft --cruft-expiration 2.weeks.ago</em> if using
1037 cruft packs via <code>gc.cruftPacks</code> or <code>--cruft</code>). Override the
1038 grace period with this config variable. The value "now" may be
1039 used to disable this grace period and always prune unreachable
1040 objects immediately, or "never" may be used to suppress pruning.
1041 This feature helps prevent corruption when <em>git gc</em> runs
1042 concurrently with another process writing to the repository; see
1043 the "NOTES" section of <a href="git-gc.html">git-gc(1)</a>.
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]1044</p>
1045</dd>
1046<dt class="hdlist1">
1047gc.worktreePruneExpire
1048</dt>
1049<dd>
1050<p>
1051 When <em>git gc</em> is run, it calls
1052 <em>git worktree prune --expire 3.months.ago</em>.
1053 This config variable can be used to set a different grace
1054 period. The value "now" may be used to disable the grace
1055 period and prune <code>$GIT_DIR/worktrees</code> immediately, or "never"
1056 may be used to suppress pruning.
1057</p>
1058</dd>
1059<dt class="hdlist1">
1060gc.reflogExpire
1061</dt>
1062<dt class="hdlist1">
1063gc.&lt;pattern&gt;.reflogExpire
1064</dt>
1065<dd>
1066<p>
1067 <em>git reflog expire</em> removes reflog entries older than
1068 this time; defaults to 90 days. The value "now" expires all
1069 entries immediately, and "never" suppresses expiration
1070 altogether. With "&lt;pattern&gt;" (e.g.
1071 "refs/stash") in the middle the setting applies only to
1072 the refs that match the &lt;pattern&gt;.
1073</p>
1074</dd>
1075<dt class="hdlist1">
1076gc.reflogExpireUnreachable
1077</dt>
1078<dt class="hdlist1">
1079gc.&lt;pattern&gt;.reflogExpireUnreachable
1080</dt>
1081<dd>
1082<p>
1083 <em>git reflog expire</em> removes reflog entries older than
1084 this time and are not reachable from the current tip;
1085 defaults to 30 days. The value "now" expires all entries
1086 immediately, and "never" suppresses expiration altogether.
1087 With "&lt;pattern&gt;" (e.g. "refs/stash")
1088 in the middle, the setting applies only to the refs that
1089 match the &lt;pattern&gt;.
1090</p>
1091<div class="paragraph"><p>These types of entries are generally created as a result of using <code>git
1092commit --amend</code> or <code>git rebase</code> and are the commits prior to the amend
1093or rebase occurring. Since these changes are not part of the current
1094project most users will want to expire them sooner, which is why the
1095default is more aggressive than <code>gc.reflogExpire</code>.</p></div>
1096</dd>
1097<dt class="hdlist1">
1098gc.rerereResolved
1099</dt>
1100<dd>
1101<p>
1102 Records of conflicted merge you resolved earlier are
1103 kept for this many days when <em>git rerere gc</em> is run.
1104 You can also use more human-readable "1.month.ago", etc.
1105 The default is 60 days. See <a href="git-rerere.html">git-rerere(1)</a>.
1106</p>
1107</dd>
1108<dt class="hdlist1">
1109gc.rerereUnresolved
1110</dt>
1111<dd>
1112<p>
1113 Records of conflicted merge you have not resolved are
1114 kept for this many days when <em>git rerere gc</em> is run.
1115 You can also use more human-readable "1.month.ago", etc.
1116 The default is 15 days. See <a href="git-rerere.html">git-rerere(1)</a>.
1117</p>
1118</dd>
1119</dl></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1120</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]1121</div>
1122<div class="sect1">
Junio C Hamanob9d9d902018-05-23 07:07:42[diff] [blame]1123<h2 id="_notes">NOTES</h2>
Junio C Hamano2f102bb2008-04-26 02:23:37[diff] [blame]1124<div class="sectionbody">
Junio C Hamano56ace3d2017-01-10 23:43:41[diff] [blame]1125<div class="paragraph"><p><em>git gc</em> tries very hard not to delete objects that are referenced
Junio C Hamanoa8858312019-09-30 05:07:45[diff] [blame]1126anywhere in your repository. In particular, it will keep not only
1127objects referenced by your current set of branches and tags, but also
Junio C Hamanoa372d5b2021-02-26 01:34:37[diff] [blame]1128objects referenced by the index, remote-tracking branches, reflogs
1129(which may reference commits in branches that were later amended or
1130rewound), and anything else in the refs/* namespace. Note that a note
1131(of the kind created by <em>git notes</em>) attached to an object does not
1132contribute in keeping the object alive. If you are expecting some
1133objects to be deleted and they aren&#8217;t, check all of those locations
1134and decide whether it makes sense in your case to remove those
1135references.</p></div>
Junio C Hamano56ace3d2017-01-10 23:43:41[diff] [blame]1136<div class="paragraph"><p>On the other hand, when <em>git gc</em> runs concurrently with another process,
1137there is a risk of it deleting an object that the other process is using
1138but hasn&#8217;t created a reference to. This may just cause the other process
1139to fail or may corrupt the repository if the other process later adds a
1140reference to the deleted object. Git has two features that significantly
1141mitigate this problem:</p></div>
1142<div class="olist arabic"><ol class="arabic">
1143<li>
1144<p>
1145Any object with modification time newer than the <code>--prune</code> date is kept,
1146 along with everything reachable from it.
1147</p>
1148</li>
1149<li>
1150<p>
1151Most operations that add an object to the database update the
1152 modification time of the object if it is already present so that #1
1153 applies.
1154</p>
1155</li>
1156</ol></div>
1157<div class="paragraph"><p>However, these features fall short of a complete solution, so users who
1158run commands concurrently have to live with some risk of corruption (which
Junio C Hamano2ba14712019-04-25 10:12:27[diff] [blame]1159seems to be low in practice).</p></div>
Junio C Hamano2f102bb2008-04-26 02:23:37[diff] [blame]1160</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]1161</div>
1162<div class="sect1">
Junio C Hamano3e3aa812010-07-05 23:25:23[diff] [blame]1163<h2 id="_hooks">HOOKS</h2>
1164<div class="sectionbody">
Junio C Hamano97bcb482010-11-25 03:16:07[diff] [blame]1165<div class="paragraph"><p>The <em>git gc --auto</em> command will run the <em>pre-auto-gc</em> hook. See
Junio C Hamanoa28a9202012-06-21 07:08:23[diff] [blame]1166<a href="githooks.html">githooks(5)</a> for more information.</p></div>
Junio C Hamano3e3aa812010-07-05 23:25:23[diff] [blame]1167</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]1168</div>
1169<div class="sect1">
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]1170<h2 id="_see_also">SEE ALSO</h2>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1171<div class="sectionbody">
Junio C Hamanoa28a9202012-06-21 07:08:23[diff] [blame]1172<div class="paragraph"><p><a href="git-prune.html">git-prune(1)</a>
1173<a href="git-reflog.html">git-reflog(1)</a>
1174<a href="git-repack.html">git-repack(1)</a>
1175<a href="git-rerere.html">git-rerere(1)</a></p></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1176</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]1177</div>
1178<div class="sect1">
Junio C Hamanoba4b9282008-07-06 05:20:31[diff] [blame]1179<h2 id="_git">GIT</h2>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1180<div class="sectionbody">
Junio C Hamanoa28a9202012-06-21 07:08:23[diff] [blame]1181<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1182</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]1183</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]1184</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]1185<div id="footnotes"><hr /></div>
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1186<div id="footer">
1187<div id="footer-text">
Junio C Hamano2ef0ba32018-01-26 23:13:53[diff] [blame]1188Last updated
Junio C Hamano5af7a892022-06-22 19:24:33[diff] [blame]1189 2022-06-22 12:22:32 PDT
Junio C Hamano52299462006-12-28 00:59:38[diff] [blame]1190</div>
1191</div>
1192</body>
1193</html>