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chromium / external / gitster / git-htmldocs / 2a4bcbc355496c8d83b1b9f8892c4cbe8f584158 / . / git-update-ref.html
blob: faefce488287a32530ffed749796f8c8b5b785b8 [file] [log] [blame]
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
4<head>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]5<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]6<meta name="generator" content="AsciiDoc 8.6.6" />
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]7<title>git-update-ref(1)</title>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]8<style type="text/css">
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]9/* Shared CSS for AsciiDoc xhtml11 and html5 backends */
10
11/* Default font. */
12body {
13 font-family: Georgia,serif;
14}
15
16/* Title font. */
17h1, h2, h3, h4, h5, h6,
18div.title, caption.title,
19thead, p.table.header,
20#toctitle,
21#author, #revnumber, #revdate, #revremark,
22#footer {
23 font-family: Arial,Helvetica,sans-serif;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]24}
25
26body {
27 margin: 1em 5% 1em 5%;
28}
29
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]30a {
31 color: blue;
32 text-decoration: underline;
33}
34a:visited {
35 color: fuchsia;
36}
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]37
38em {
39 font-style: italic;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]40 color: navy;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]41}
42
43strong {
44 font-weight: bold;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]45 color: #083194;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]46}
47
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]48h1, h2, h3, h4, h5, h6 {
49 color: #527bbd;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]50 margin-top: 1.2em;
51 margin-bottom: 0.5em;
52 line-height: 1.3;
53}
54
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]55h1, h2, h3 {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]56 border-bottom: 2px solid silver;
57}
58h2 {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]59 padding-top: 0.5em;
60}
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]61h3 {
62 float: left;
63}
64h3 + * {
65 clear: left;
66}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]67h5 {
68 font-size: 1.0em;
69}
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]70
71div.sectionbody {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]72 margin-left: 0;
73}
74
75hr {
76 border: 1px solid silver;
77}
78
79p {
80 margin-top: 0.5em;
81 margin-bottom: 0.5em;
82}
83
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]84ul, ol, li > p {
85 margin-top: 0;
86}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]87ul > li { color: #aaa; }
88ul > li > * { color: black; }
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]89
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]90pre {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]91 padding: 0;
92 margin: 0;
93}
94
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]95#author {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]96 color: #527bbd;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]97 font-weight: bold;
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]98 font-size: 1.1em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]99}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]100#email {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]101}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]102#revnumber, #revdate, #revremark {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]103}
104
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]105#footer {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]106 font-size: small;
107 border-top: 2px solid silver;
108 padding-top: 0.5em;
109 margin-top: 4.0em;
110}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]111#footer-text {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]112 float: left;
113 padding-bottom: 0.5em;
114}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]115#footer-badges {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]116 float: right;
117 padding-bottom: 0.5em;
118}
119
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]120#preamble {
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]121 margin-top: 1.5em;
122 margin-bottom: 1.5em;
123}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]124div.imageblock, div.exampleblock, div.verseblock,
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]125div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
126div.admonitionblock {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]127 margin-top: 1.0em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]128 margin-bottom: 1.5em;
129}
130div.admonitionblock {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]131 margin-top: 2.0em;
132 margin-bottom: 2.0em;
133 margin-right: 10%;
134 color: #606060;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]135}
136
137div.content { /* Block element content. */
138 padding: 0;
139}
140
141/* Block element titles. */
142div.title, caption.title {
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]143 color: #527bbd;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]144 font-weight: bold;
145 text-align: left;
146 margin-top: 1.0em;
147 margin-bottom: 0.5em;
148}
149div.title + * {
150 margin-top: 0;
151}
152
153td div.title:first-child {
154 margin-top: 0.0em;
155}
156div.content div.title:first-child {
157 margin-top: 0.0em;
158}
159div.content + div.title {
160 margin-top: 0.0em;
161}
162
163div.sidebarblock > div.content {
164 background: #ffffee;
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]165 border: 1px solid #dddddd;
166 border-left: 4px solid #f0f0f0;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]167 padding: 0.5em;
168}
169
170div.listingblock > div.content {
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]171 border: 1px solid #dddddd;
172 border-left: 5px solid #f0f0f0;
173 background: #f8f8f8;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]174 padding: 0.5em;
175}
176
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]177div.quoteblock, div.verseblock {
178 padding-left: 1.0em;
179 margin-left: 1.0em;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]180 margin-right: 10%;
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]181 border-left: 5px solid #f0f0f0;
182 color: #888;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]183}
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]184
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]185div.quoteblock > div.attribution {
186 padding-top: 0.5em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]187 text-align: right;
188}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]189
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]190div.verseblock > pre.content {
191 font-family: inherit;
192 font-size: inherit;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]193}
194div.verseblock > div.attribution {
195 padding-top: 0.75em;
196 text-align: left;
197}
198/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]199div.verseblock + div.attribution {
200 text-align: left;
201}
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]202
203div.admonitionblock .icon {
204 vertical-align: top;
205 font-size: 1.1em;
206 font-weight: bold;
207 text-decoration: underline;
208 color: #527bbd;
209 padding-right: 0.5em;
210}
211div.admonitionblock td.content {
212 padding-left: 0.5em;
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]213 border-left: 3px solid #dddddd;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]214}
215
216div.exampleblock > div.content {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]217 border-left: 3px solid #dddddd;
218 padding-left: 0.5em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]219}
220
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]221div.imageblock div.content { padding-left: 0; }
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]222span.image img { border-style: none; }
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]223a.image:visited { color: white; }
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]224
225dl {
226 margin-top: 0.8em;
227 margin-bottom: 0.8em;
228}
229dt {
230 margin-top: 0.5em;
231 margin-bottom: 0;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]232 font-style: normal;
233 color: navy;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]234}
235dd > *:first-child {
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]236 margin-top: 0.1em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]237}
238
239ul, ol {
240 list-style-position: outside;
241}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]242ol.arabic {
243 list-style-type: decimal;
244}
245ol.loweralpha {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]246 list-style-type: lower-alpha;
247}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]248ol.upperalpha {
249 list-style-type: upper-alpha;
250}
251ol.lowerroman {
252 list-style-type: lower-roman;
253}
254ol.upperroman {
255 list-style-type: upper-roman;
256}
257
258div.compact ul, div.compact ol,
259div.compact p, div.compact p,
260div.compact div, div.compact div {
261 margin-top: 0.1em;
262 margin-bottom: 0.1em;
263}
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]264
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]265tfoot {
266 font-weight: bold;
267}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]268td > div.verse {
269 white-space: pre;
270}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]271
272div.hdlist {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]273 margin-top: 0.8em;
274 margin-bottom: 0.8em;
275}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]276div.hdlist tr {
277 padding-bottom: 15px;
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]278}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]279dt.hdlist1.strong, td.hdlist1.strong {
280 font-weight: bold;
281}
282td.hdlist1 {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]283 vertical-align: top;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]284 font-style: normal;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]285 padding-right: 0.8em;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]286 color: navy;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]287}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]288td.hdlist2 {
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]289 vertical-align: top;
290}
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]291div.hdlist.compact tr {
292 margin: 0;
293 padding-bottom: 0;
294}
295
296.comment {
297 background: yellow;
298}
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]299
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]300.footnote, .footnoteref {
301 font-size: 0.8em;
302}
303
304span.footnote, span.footnoteref {
305 vertical-align: super;
306}
307
308#footnotes {
309 margin: 20px 0 20px 0;
310 padding: 7px 0 0 0;
311}
312
313#footnotes div.footnote {
314 margin: 0 0 5px 0;
315}
316
317#footnotes hr {
318 border: none;
319 border-top: 1px solid silver;
320 height: 1px;
321 text-align: left;
322 margin-left: 0;
323 width: 20%;
324 min-width: 100px;
325}
326
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]327div.colist td {
328 padding-right: 0.5em;
329 padding-bottom: 0.3em;
330 vertical-align: top;
331}
332div.colist td img {
333 margin-top: 0.3em;
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]334}
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]335
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]336@media print {
337 #footer-badges { display: none; }
338}
339
340#toc {
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]341 margin-bottom: 2.5em;
342}
343
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]344#toctitle {
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]345 color: #527bbd;
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]346 font-size: 1.1em;
347 font-weight: bold;
348 margin-top: 1.0em;
349 margin-bottom: 0.1em;
350}
351
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]352div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]353 margin-top: 0;
354 margin-bottom: 0;
355}
356div.toclevel2 {
357 margin-left: 2em;
358 font-size: 0.9em;
359}
360div.toclevel3 {
361 margin-left: 4em;
362 font-size: 0.9em;
363}
364div.toclevel4 {
365 margin-left: 6em;
366 font-size: 0.9em;
367}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]368
369span.aqua { color: aqua; }
370span.black { color: black; }
371span.blue { color: blue; }
372span.fuchsia { color: fuchsia; }
373span.gray { color: gray; }
374span.green { color: green; }
375span.lime { color: lime; }
376span.maroon { color: maroon; }
377span.navy { color: navy; }
378span.olive { color: olive; }
379span.purple { color: purple; }
380span.red { color: red; }
381span.silver { color: silver; }
382span.teal { color: teal; }
383span.white { color: white; }
384span.yellow { color: yellow; }
385
386span.aqua-background { background: aqua; }
387span.black-background { background: black; }
388span.blue-background { background: blue; }
389span.fuchsia-background { background: fuchsia; }
390span.gray-background { background: gray; }
391span.green-background { background: green; }
392span.lime-background { background: lime; }
393span.maroon-background { background: maroon; }
394span.navy-background { background: navy; }
395span.olive-background { background: olive; }
396span.purple-background { background: purple; }
397span.red-background { background: red; }
398span.silver-background { background: silver; }
399span.teal-background { background: teal; }
400span.white-background { background: white; }
401span.yellow-background { background: yellow; }
402
403span.big { font-size: 2em; }
404span.small { font-size: 0.6em; }
405
406span.underline { text-decoration: underline; }
407span.overline { text-decoration: overline; }
408span.line-through { text-decoration: line-through; }
409
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]410
411/*
412 * xhtml11 specific
413 *
414 * */
415
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]416tt {
417 font-family: monospace;
418 font-size: inherit;
419 color: navy;
420}
421
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]422div.tableblock {
423 margin-top: 1.0em;
424 margin-bottom: 1.5em;
425}
426div.tableblock > table {
427 border: 3px solid #527bbd;
428}
429thead, p.table.header {
430 font-weight: bold;
431 color: #527bbd;
432}
433p.table {
434 margin-top: 0;
435}
436/* Because the table frame attribute is overriden by CSS in most browsers. */
437div.tableblock > table[frame="void"] {
438 border-style: none;
439}
440div.tableblock > table[frame="hsides"] {
441 border-left-style: none;
442 border-right-style: none;
443}
444div.tableblock > table[frame="vsides"] {
445 border-top-style: none;
446 border-bottom-style: none;
447}
448
449
450/*
451 * html5 specific
452 *
453 * */
454
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]455.monospaced {
456 font-family: monospace;
457 font-size: inherit;
458 color: navy;
459}
460
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]461table.tableblock {
462 margin-top: 1.0em;
463 margin-bottom: 1.5em;
464}
465thead, p.tableblock.header {
466 font-weight: bold;
467 color: #527bbd;
468}
469p.tableblock {
470 margin-top: 0;
471}
472table.tableblock {
473 border-width: 3px;
474 border-spacing: 0px;
475 border-style: solid;
476 border-color: #527bbd;
477 border-collapse: collapse;
478}
479th.tableblock, td.tableblock {
480 border-width: 1px;
481 padding: 4px;
482 border-style: solid;
483 border-color: #527bbd;
484}
485
486table.tableblock.frame-topbot {
487 border-left-style: hidden;
488 border-right-style: hidden;
489}
490table.tableblock.frame-sides {
491 border-top-style: hidden;
492 border-bottom-style: hidden;
493}
494table.tableblock.frame-none {
495 border-style: hidden;
496}
497
498th.tableblock.halign-left, td.tableblock.halign-left {
499 text-align: left;
500}
501th.tableblock.halign-center, td.tableblock.halign-center {
502 text-align: center;
503}
504th.tableblock.halign-right, td.tableblock.halign-right {
505 text-align: right;
506}
507
508th.tableblock.valign-top, td.tableblock.valign-top {
509 vertical-align: top;
510}
511th.tableblock.valign-middle, td.tableblock.valign-middle {
512 vertical-align: middle;
513}
514th.tableblock.valign-bottom, td.tableblock.valign-bottom {
515 vertical-align: bottom;
516}
517
518
519/*
520 * manpage specific
521 *
522 * */
523
524body.manpage h1 {
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]525 padding-top: 0.5em;
526 padding-bottom: 0.5em;
527 border-top: 2px solid silver;
528 border-bottom: 2px solid silver;
529}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]530body.manpage h2 {
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]531 border-style: none;
532}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]533body.manpage div.sectionbody {
534 margin-left: 3em;
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]535}
536
537@media print {
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]538 body.manpage div#toc { display: none; }
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]539}
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542/*<![CDATA[*/
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]543var asciidoc = { // Namespace.
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545/////////////////////////////////////////////////////////////////////
546// Table Of Contents generator
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548
549/* Author: Mihai Bazon, September 2002
550 * http://students.infoiasi.ro/~mishoo
551 *
552 * Table Of Content generator
553 * Version: 0.4
554 *
555 * Feel free to use this script under the terms of the GNU General Public
556 * License, as long as you do not remove or alter this notice.
557 */
558
559 /* modified by Troy D. Hanson, September 2006. License: GPL */
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Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]584 var re = new RegExp('[hH]([2-'+(toclevels+1)+'])');
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Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]604 if (!toc) {
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Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]613 if (entry.nodeName == 'div'
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]614 && entry.getAttribute("class")
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639
640
641/////////////////////////////////////////////////////////////////////
642// Footnotes generator
643/////////////////////////////////////////////////////////////////////
644
645/* Based on footnote generation code from:
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647 */
648
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Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]659 if (entry.nodeName == 'div' && entry.getAttribute("class") == "footnote")
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Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]707},
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Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]729}
730
731}
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]732asciidoc.install();
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]733/*]]>*/
734</script>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]735</head>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]736<body class="manpage">
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]737<div id="header">
738<h1>
739git-update-ref(1) Manual Page
740</h1>
741<h2>NAME</h2>
742<div class="sectionbody">
743<p>git-update-ref -
Junio C Hamano7c73c662007-01-19 00:37:50[diff] [blame]744 Update the object name stored in a ref safely
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]745</p>
746</div>
747</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]748<div id="content">
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]749<div class="sect1">
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]750<h2 id="_synopsis">SYNOPSIS</h2>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]751<div class="sectionbody">
Junio C Hamano15567bc2011-07-23 00:51:59[diff] [blame]752<div class="verseblock">
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]753<pre class="content"><em>git update-ref</em> [-m &lt;reason&gt;] (-d &lt;ref&gt; [&lt;oldvalue&gt;] | [--no-deref] &lt;ref&gt; &lt;newvalue&gt; [&lt;oldvalue&gt;] | --stdin [-z])</pre>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]754<div class="attribution">
Junio C Hamano15567bc2011-07-23 00:51:59[diff] [blame]755</div></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]756</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]757</div>
758<div class="sect1">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]759<h2 id="_description">DESCRIPTION</h2>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]760<div class="sectionbody">
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]761<div class="paragraph"><p>Given two arguments, stores the &lt;newvalue&gt; in the &lt;ref&gt;, possibly
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]762dereferencing the symbolic refs. E.g. <tt>git update-ref HEAD
763&lt;newvalue&gt;</tt> updates the current branch head to the new object.</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]764<div class="paragraph"><p>Given three arguments, stores the &lt;newvalue&gt; in the &lt;ref&gt;,
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]765possibly dereferencing the symbolic refs, after verifying that
766the current value of the &lt;ref&gt; matches &lt;oldvalue&gt;.
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]767E.g. <tt>git update-ref refs/heads/master &lt;newvalue&gt; &lt;oldvalue&gt;</tt>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]768updates the master branch head to &lt;newvalue&gt; only if its current
Junio C Hamanoa2ec14f2006-11-02 00:22:48[diff] [blame]769value is &lt;oldvalue&gt;. You can specify 40 "0" or an empty string
770as &lt;oldvalue&gt; to make sure that the ref you are creating does
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]771not exist.</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]772<div class="paragraph"><p>It also allows a "ref" file to be a symbolic pointer to another
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]773ref file by starting with the four-byte header sequence of
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]774"ref:".</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]775<div class="paragraph"><p>More importantly, it allows the update of a ref file to follow
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]776these symbolic pointers, whether they are symlinks or these
777"regular file symbolic refs". It follows <strong>real</strong> symlinks only
778if they start with "refs/": otherwise it will just try to read
779them and update them as a regular file (i.e. it will allow the
780filesystem to follow them, but will overwrite such a symlink to
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]781somewhere else with a regular filename).</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]782<div class="paragraph"><p>If --no-deref is given, &lt;ref&gt; itself is overwritten, rather than
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]783the result of following the symbolic pointers.</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]784<div class="paragraph"><p>In general, using</p></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]785<div class="literalblock">
786<div class="content">
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]787<pre><tt>git update-ref HEAD "$head"</tt></pre>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]788</div></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]789<div class="paragraph"><p>should be a <em>lot</em> safer than doing</p></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]790<div class="literalblock">
791<div class="content">
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]792<pre><tt>echo "$head" &gt; "$GIT_DIR/HEAD"</tt></pre>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]793</div></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]794<div class="paragraph"><p>both from a symlink following standpoint <strong>and</strong> an error checking
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]795standpoint. The "refs/" rule for symlinks means that symlinks
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]796that point to "outside" the tree are safe: they&#8217;ll be followed
797for reading but not for writing (so we&#8217;ll never write through a
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]798ref symlink to some other tree, if you have copied a whole
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]799archive by creating a symlink tree).</p></div>
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]800<div class="paragraph"><p>With <tt>-d</tt> flag, it deletes the named &lt;ref&gt; after verifying it
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]801still contains &lt;oldvalue&gt;.</p></div>
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]802<div class="paragraph"><p>With <tt>--stdin</tt>, update-ref reads instructions from standard input and
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]803performs all modifications together. Specify commands of the form:</p></div>
804<div class="literalblock">
805<div class="content">
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]806<pre><tt>update SP &lt;ref&gt; SP &lt;newvalue&gt; [SP &lt;oldvalue&gt;] LF
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]807create SP &lt;ref&gt; SP &lt;newvalue&gt; LF
808delete SP &lt;ref&gt; [SP &lt;oldvalue&gt;] LF
809verify SP &lt;ref&gt; [SP &lt;oldvalue&gt;] LF
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]810option SP &lt;opt&gt; LF</tt></pre>
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]811</div></div>
812<div class="paragraph"><p>Quote fields containing whitespace as if they were strings in C source
Junio C Hamanob051caf2014-06-03 22:15:13[diff] [blame]813code; i.e., surrounded by double-quotes and with backslash escapes.
814Use 40 "0" characters or the empty string to specify a zero value. To
815specify a missing value, omit the value and its preceding SP entirely.</p></div>
816<div class="paragraph"><p>Alternatively, use <tt>-z</tt> to specify in NUL-terminated format, without
817quoting:</p></div>
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]818<div class="literalblock">
819<div class="content">
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]820<pre><tt>update SP &lt;ref&gt; NUL &lt;newvalue&gt; NUL [&lt;oldvalue&gt;] NUL
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]821create SP &lt;ref&gt; NUL &lt;newvalue&gt; NUL
822delete SP &lt;ref&gt; NUL [&lt;oldvalue&gt;] NUL
823verify SP &lt;ref&gt; NUL [&lt;oldvalue&gt;] NUL
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]824option SP &lt;opt&gt; NUL</tt></pre>
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]825</div></div>
Junio C Hamanob051caf2014-06-03 22:15:13[diff] [blame]826<div class="paragraph"><p>In this format, use 40 "0" to specify a zero value, and use the empty
827string to specify a missing value.</p></div>
828<div class="paragraph"><p>In either format, values can be specified in any form that Git
829recognizes as an object name. Commands in any other format or a
830repeated &lt;ref&gt; produce an error. Command meanings are:</p></div>
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]831<div class="dlist"><dl>
832<dt class="hdlist1">
833update
834</dt>
835<dd>
836<p>
837 Set &lt;ref&gt; to &lt;newvalue&gt; after verifying &lt;oldvalue&gt;, if given.
838 Specify a zero &lt;newvalue&gt; to ensure the ref does not exist
839 after the update and/or a zero &lt;oldvalue&gt; to make sure the
840 ref does not exist before the update.
841</p>
842</dd>
843<dt class="hdlist1">
844create
845</dt>
846<dd>
847<p>
848 Create &lt;ref&gt; with &lt;newvalue&gt; after verifying it does not
849 exist. The given &lt;newvalue&gt; may not be zero.
850</p>
851</dd>
852<dt class="hdlist1">
853delete
854</dt>
855<dd>
856<p>
857 Delete &lt;ref&gt; after verifying it exists with &lt;oldvalue&gt;, if
858 given. If given, &lt;oldvalue&gt; may not be zero.
859</p>
860</dd>
861<dt class="hdlist1">
862verify
863</dt>
864<dd>
865<p>
866 Verify &lt;ref&gt; against &lt;oldvalue&gt; but do not change it. If
867 &lt;oldvalue&gt; zero or missing, the ref must not exist.
868</p>
869</dd>
870<dt class="hdlist1">
871option
872</dt>
873<dd>
874<p>
875 Modify behavior of the next command naming a &lt;ref&gt;.
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]876 The only valid option is <tt>no-deref</tt> to avoid dereferencing
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]877 a symbolic ref.
878</p>
879</dd>
880</dl></div>
Junio C Hamano79f4c7c2013-09-20 21:03:37[diff] [blame]881<div class="paragraph"><p>If all &lt;ref&gt;s can be locked with matching &lt;oldvalue&gt;s
882simultaneously, all modifications are performed. Otherwise, no
883modifications are performed. Note that while each individual
884&lt;ref&gt; is updated or deleted atomically, a concurrent reader may
885still see a subset of the modifications.</p></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]886</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]887</div>
888<div class="sect1">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]889<h2 id="_logging_updates">Logging Updates</h2>
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]890<div class="sectionbody">
Junio C Hamano15567bc2011-07-23 00:51:59[diff] [blame]891<div class="paragraph"><p>If config parameter "core.logAllRefUpdates" is true and the ref is one under
892"refs/heads/", "refs/remotes/", "refs/notes/", or the symbolic ref HEAD; or
Junio C Hamano61525f92014-01-17 22:46:49[diff] [blame]893the file "$GIT_DIR/logs/&lt;ref&gt;" exists then <tt>git update-ref</tt> will append
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]894a line to the log file "$GIT_DIR/logs/&lt;ref&gt;" (dereferencing all
895symbolic refs before creating the log name) describing the change
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]896in ref value. Log lines are formatted as:</p></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]897<div class="olist arabic"><ol class="arabic">
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]898<li>
899<p>
900oldsha1 SP newsha1 SP committer LF
901</p>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]902<div class="paragraph"><p>Where "oldsha1" is the 40 character hexadecimal value previously
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]903stored in &lt;ref&gt;, "newsha1" is the 40 character hexadecimal value of
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]904&lt;newvalue&gt; and "committer" is the committer&#8217;s name, email address
Junio C Hamano076ffcc2013-02-06 05:13:21[diff] [blame]905and date in the standard Git committer ident format.</p></div>
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]906</li>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]907</ol></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]908<div class="paragraph"><p>Optionally with -m:</p></div>
909<div class="olist arabic"><ol class="arabic">
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]910<li>
911<p>
912oldsha1 SP newsha1 SP committer TAB message LF
913</p>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]914<div class="paragraph"><p>Where all fields are as described above and "message" is the
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]915value supplied to the -m option.</p></div>
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]916</li>
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]917</ol></div>
Junio C Hamano103b5722011-01-31 05:03:45[diff] [blame]918<div class="paragraph"><p>An update will fail (without changing &lt;ref&gt;) if the current user is
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]919unable to create a new log file, append to the existing log file
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]920or does not have committer information available.</p></div>
Junio C Hamano341071d2006-06-04 07:24:48[diff] [blame]921</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]922</div>
923<div class="sect1">
Junio C Hamano4604fe52008-09-19 06:37:10[diff] [blame]924<h2 id="_git">GIT</h2>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]925<div class="sectionbody">
Junio C Hamanoa28a9202012-06-21 07:08:23[diff] [blame]926<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]927</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]928</div>
Junio C Hamano9d971152012-12-19 00:43:11[diff] [blame]929</div>
Junio C Hamano7bd050f2011-09-22 06:32:22[diff] [blame]930<div id="footnotes"><hr /></div>
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]931<div id="footer">
932<div id="footer-text">
Junio C Hamanob051caf2014-06-03 22:15:13[diff] [blame]933Last updated 2014-06-03 15:14:46 PDT
Junio C Hamano1a4e8412005-12-27 08:17:23[diff] [blame]934</div>
935</div>
936</body>
937</html>