713 lines
41 KiB
HTML
713 lines
41 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="generator" content="Asciidoctor 1.5.8">
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<title>git-gc(1)</title>
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic%7CNoto+Serif:400,400italic,700,700italic%7CDroid+Sans+Mono:400,700">
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<style>
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/* Asciidoctor default stylesheet | MIT License | http://asciidoctor.org */
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/* Uncomment @import statement below to use as custom stylesheet */
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/*@import "https://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic%7CNoto+Serif:400,400italic,700,700italic%7CDroid+Sans+Mono:400,700";*/
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article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}
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audio,canvas,video{display:inline-block}
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audio:not([controls]){display:none;height:0}
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script{display:none!important}
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html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}
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a{background:transparent}
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a:focus{outline:thin dotted}
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a:active,a:hover{outline:0}
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h1{font-size:2em;margin:.67em 0}
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abbr[title]{border-bottom:1px dotted}
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b,strong{font-weight:bold}
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dfn{font-style:italic}
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hr{-moz-box-sizing:content-box;box-sizing:content-box;height:0}
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mark{background:#ff0;color:#000}
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code,kbd,pre,samp{font-family:monospace;font-size:1em}
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pre{white-space:pre-wrap}
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q{quotes:"\201C" "\201D" "\2018" "\2019"}
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small{font-size:80%}
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sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}
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sup{top:-.5em}
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sub{bottom:-.25em}
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img{border:0}
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svg:not(:root){overflow:hidden}
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figure{margin:0}
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fieldset{border:1px solid silver;margin:0 2px;padding:.35em .625em .75em}
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legend{border:0;padding:0}
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button,input,select,textarea{font-family:inherit;font-size:100%;margin:0}
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button,input{line-height:normal}
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button,select{text-transform:none}
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button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer}
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button[disabled],html input[disabled]{cursor:default}
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input[type="checkbox"],input[type="radio"]{box-sizing:border-box;padding:0}
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button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}
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textarea{overflow:auto;vertical-align:top}
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table{border-collapse:collapse;border-spacing:0}
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*,*::before,*::after{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box}
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html,body{font-size:100%}
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body{background:#fff;color:rgba(0,0,0,.8);padding:0;margin:0;font-family:"Noto Serif","DejaVu Serif",serif;font-weight:400;font-style:normal;line-height:1;position:relative;cursor:auto;tab-size:4;-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased}
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a:hover{cursor:pointer}
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img,object,embed{max-width:100%;height:auto}
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object,embed{height:100%}
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img{-ms-interpolation-mode:bicubic}
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.left{float:left!important}
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.right{float:right!important}
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.text-left{text-align:left!important}
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.text-right{text-align:right!important}
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.text-center{text-align:center!important}
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.text-justify{text-align:justify!important}
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.hide{display:none}
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img,object,svg{display:inline-block;vertical-align:middle}
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textarea{height:auto;min-height:50px}
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select{width:100%}
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.center{margin-left:auto;margin-right:auto}
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.stretch{width:100%}
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.subheader,.admonitionblock td.content>.title,.audioblock>.title,.exampleblock>.title,.imageblock>.title,.listingblock>.title,.literalblock>.title,.stemblock>.title,.openblock>.title,.paragraph>.title,.quoteblock>.title,table.tableblock>.title,.verseblock>.title,.videoblock>.title,.dlist>.title,.olist>.title,.ulist>.title,.qlist>.title,.hdlist>.title{line-height:1.45;color:#7a2518;font-weight:400;margin-top:0;margin-bottom:.25em}
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div,dl,dt,dd,ul,ol,li,h1,h2,h3,#toctitle,.sidebarblock>.content>.title,h4,h5,h6,pre,form,p,blockquote,th,td{margin:0;padding:0;direction:ltr}
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a{color:#2156a5;text-decoration:underline;line-height:inherit}
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a:hover,a:focus{color:#1d4b8f}
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a img{border:none}
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p{font-family:inherit;font-weight:400;font-size:1em;line-height:1.6;margin-bottom:1.25em;text-rendering:optimizeLegibility}
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p aside{font-size:.875em;line-height:1.35;font-style:italic}
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h1,h2,h3,#toctitle,.sidebarblock>.content>.title,h4,h5,h6{font-family:"Open Sans","DejaVu Sans",sans-serif;font-weight:300;font-style:normal;color:#ba3925;text-rendering:optimizeLegibility;margin-top:1em;margin-bottom:.5em;line-height:1.0125em}
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h1 small,h2 small,h3 small,#toctitle small,.sidebarblock>.content>.title small,h4 small,h5 small,h6 small{font-size:60%;color:#e99b8f;line-height:0}
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h1{font-size:2.125em}
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h2{font-size:1.6875em}
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h3,#toctitle,.sidebarblock>.content>.title{font-size:1.375em}
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h4,h5{font-size:1.125em}
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h6{font-size:1em}
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hr{border:solid #dddddf;border-width:1px 0 0;clear:both;margin:1.25em 0 1.1875em;height:0}
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em,i{font-style:italic;line-height:inherit}
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strong,b{font-weight:bold;line-height:inherit}
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small{font-size:60%;line-height:inherit}
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code{font-family:"Droid Sans Mono","DejaVu Sans Mono",monospace;font-weight:400;color:rgba(0,0,0,.9)}
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ul,ol,dl{font-size:1em;line-height:1.6;margin-bottom:1.25em;list-style-position:outside;font-family:inherit}
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ul,ol{margin-left:1.5em}
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ul li ul,ul li ol{margin-left:1.25em;margin-bottom:0;font-size:1em}
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ul.square li ul,ul.circle li ul,ul.disc li ul{list-style:inherit}
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ul.square{list-style-type:square}
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ul.circle{list-style-type:circle}
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ul.disc{list-style-type:disc}
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ol li ul,ol li ol{margin-left:1.25em;margin-bottom:0}
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dl dt{margin-bottom:.3125em;font-weight:bold}
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dl dd{margin-bottom:1.25em}
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abbr,acronym{text-transform:uppercase;font-size:90%;color:rgba(0,0,0,.8);border-bottom:1px dotted #ddd;cursor:help}
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abbr{text-transform:none}
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blockquote{margin:0 0 1.25em;padding:.5625em 1.25em 0 1.1875em;border-left:1px solid #ddd}
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blockquote cite{display:block;font-size:.9375em;color:rgba(0,0,0,.6)}
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blockquote cite::before{content:"\2014 \0020"}
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blockquote cite a,blockquote cite a:visited{color:rgba(0,0,0,.6)}
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blockquote,blockquote p{line-height:1.6;color:rgba(0,0,0,.85)}
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@media screen and (min-width:768px){h1,h2,h3,#toctitle,.sidebarblock>.content>.title,h4,h5,h6{line-height:1.2}
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h1{font-size:2.75em}
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h2{font-size:2.3125em}
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h3,#toctitle,.sidebarblock>.content>.title{font-size:1.6875em}
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h4{font-size:1.4375em}}
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table{background:#fff;margin-bottom:1.25em;border:solid 1px #dedede}
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table thead,table tfoot{background:#f7f8f7}
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table thead tr th,table thead tr td,table tfoot tr th,table tfoot tr td{padding:.5em .625em .625em;font-size:inherit;color:rgba(0,0,0,.8);text-align:left}
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table tr th,table tr td{padding:.5625em .625em;font-size:inherit;color:rgba(0,0,0,.8)}
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table tr.even,table tr.alt,table tr:nth-of-type(even){background:#f8f8f7}
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table thead tr th,table tfoot tr th,table tbody tr td,table tr td,table tfoot tr td{display:table-cell;line-height:1.6}
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h1,h2,h3,#toctitle,.sidebarblock>.content>.title,h4,h5,h6{line-height:1.2;word-spacing:-.05em}
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h1 strong,h2 strong,h3 strong,#toctitle strong,.sidebarblock>.content>.title strong,h4 strong,h5 strong,h6 strong{font-weight:400}
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.clearfix::before,.clearfix::after,.float-group::before,.float-group::after{content:" ";display:table}
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.clearfix::after,.float-group::after{clear:both}
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*:not(pre)>code{font-size:.9375em;font-style:normal!important;letter-spacing:0;padding:.1em .5ex;word-spacing:-.15em;background-color:#f7f7f8;-webkit-border-radius:4px;border-radius:4px;line-height:1.45;text-rendering:optimizeSpeed;word-wrap:break-word}
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*:not(pre)>code.nobreak{word-wrap:normal}
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*:not(pre)>code.nowrap{white-space:nowrap}
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pre,pre>code{line-height:1.45;color:rgba(0,0,0,.9);font-family:"Droid Sans Mono","DejaVu Sans Mono",monospace;font-weight:400;text-rendering:optimizeSpeed}
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em em{font-style:normal}
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strong strong{font-weight:400}
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.keyseq{color:rgba(51,51,51,.8)}
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kbd{font-family:"Droid Sans Mono","DejaVu Sans Mono",monospace;display:inline-block;color:rgba(0,0,0,.8);font-size:.65em;line-height:1.45;background-color:#f7f7f7;border:1px solid #ccc;-webkit-border-radius:3px;border-radius:3px;-webkit-box-shadow:0 1px 0 rgba(0,0,0,.2),0 0 0 .1em white inset;box-shadow:0 1px 0 rgba(0,0,0,.2),0 0 0 .1em #fff inset;margin:0 .15em;padding:.2em .5em;vertical-align:middle;position:relative;top:-.1em;white-space:nowrap}
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.keyseq kbd:first-child{margin-left:0}
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.keyseq kbd:last-child{margin-right:0}
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.menuseq,.menuref{color:#000}
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.menuseq b:not(.caret),.menuref{font-weight:inherit}
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.menuseq{word-spacing:-.02em}
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.menuseq b.caret{font-size:1.25em;line-height:.8}
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.menuseq i.caret{font-weight:bold;text-align:center;width:.45em}
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b.button::before,b.button::after{position:relative;top:-1px;font-weight:400}
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b.button::before{content:"[";padding:0 3px 0 2px}
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b.button::after{content:"]";padding:0 2px 0 3px}
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p a>code:hover{color:rgba(0,0,0,.9)}
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#header,#content,#footnotes,#footer{width:100%;margin-left:auto;margin-right:auto;margin-top:0;margin-bottom:0;max-width:62.5em;*zoom:1;position:relative;padding-left:.9375em;padding-right:.9375em}
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#header::before,#header::after,#content::before,#content::after,#footnotes::before,#footnotes::after,#footer::before,#footer::after{content:" ";display:table}
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#header::after,#content::after,#footnotes::after,#footer::after{clear:both}
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#content{margin-top:1.25em}
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#content::before{content:none}
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#header>h1:first-child{color:rgba(0,0,0,.85);margin-top:2.25rem;margin-bottom:0}
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#header>h1:first-child+#toc{margin-top:8px;border-top:1px solid #dddddf}
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#header .details{border-bottom:1px solid #dddddf;line-height:1.45;padding-top:.25em;padding-bottom:.25em;padding-left:.25em;color:rgba(0,0,0,.6);display:-ms-flexbox;display:-webkit-flex;display:flex;-ms-flex-flow:row wrap;-webkit-flex-flow:row wrap;flex-flow:row wrap}
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#header .details span:first-child{margin-left:-.125em}
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#header .details span.email a{color:rgba(0,0,0,.85)}
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#header .details br{display:none}
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#header .details br+span::before{content:"\00a0\2013\00a0"}
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#header .details br+span.author::before{content:"\00a0\22c5\00a0";color:rgba(0,0,0,.85)}
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#header .details br+span#revremark::before{content:"\00a0|\00a0"}
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#header #revnumber{text-transform:capitalize}
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#header #revnumber::after{content:"\00a0"}
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#content>h1:first-child:not([class]){color:rgba(0,0,0,.85);border-bottom:1px solid #dddddf;padding-bottom:8px;margin-top:0;padding-top:1rem;margin-bottom:1.25rem}
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#toc{border-bottom:1px solid #e7e7e9;padding-bottom:.5em}
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#toc>ul{margin-left:.125em}
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#toc ul.sectlevel0>li>a{font-style:italic}
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#toc ul.sectlevel0 ul.sectlevel1{margin:.5em 0}
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#toc ul{font-family:"Open Sans","DejaVu Sans",sans-serif;list-style-type:none}
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#toc li{line-height:1.3334;margin-top:.3334em}
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#toc a{text-decoration:none}
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#toc a:active{text-decoration:underline}
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#toctitle{color:#7a2518;font-size:1.2em}
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@media screen and (min-width:768px){#toctitle{font-size:1.375em}
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body.toc2{padding-left:15em;padding-right:0}
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#toc.toc2{margin-top:0!important;background-color:#f8f8f7;position:fixed;width:15em;left:0;top:0;border-right:1px solid #e7e7e9;border-top-width:0!important;border-bottom-width:0!important;z-index:1000;padding:1.25em 1em;height:100%;overflow:auto}
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#toc.toc2>ul{font-size:.9em;margin-bottom:0}
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#toc.toc2 ul ul{margin-left:0;padding-left:1em}
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body.toc2.toc-right{padding-left:0;padding-right:15em}
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body.toc2.toc-right #toc.toc2{border-right-width:0;border-left:1px solid #e7e7e9;left:auto;right:0}}
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@media screen and (min-width:1280px){body.toc2{padding-left:20em;padding-right:0}
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#toc.toc2{width:20em}
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#toc.toc2 #toctitle{font-size:1.375em}
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#toc.toc2 ul ul{padding-left:1.25em}
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body.toc2.toc-right{padding-left:0;padding-right:20em}}
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#content #toc{border-style:solid;border-width:1px;border-color:#e0e0dc;margin-bottom:1.25em;padding:1.25em;background:#f8f8f7;-webkit-border-radius:4px;border-radius:4px}
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#content #toc>:first-child{margin-top:0}
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#content #toc>:last-child{margin-bottom:0}
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#footer{max-width:100%;background-color:rgba(0,0,0,.8);padding:1.25em}
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#footer-text{color:rgba(255,255,255,.8);line-height:1.44}
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#content{margin-bottom:.625em}
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.sect1{padding-bottom:.625em}
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@media screen and (min-width:768px){#content{margin-bottom:1.25em}
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.sect1{padding-bottom:1.25em}}
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.sect1:last-child{padding-bottom:0}
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.sect1+.sect1{border-top:1px solid #e7e7e9}
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#content h1>a.anchor,h2>a.anchor,h3>a.anchor,#toctitle>a.anchor,.sidebarblock>.content>.title>a.anchor,h4>a.anchor,h5>a.anchor,h6>a.anchor{position:absolute;z-index:1001;width:1.5ex;margin-left:-1.5ex;display:block;text-decoration:none!important;visibility:hidden;text-align:center;font-weight:400}
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#content h1>a.anchor::before,h2>a.anchor::before,h3>a.anchor::before,#toctitle>a.anchor::before,.sidebarblock>.content>.title>a.anchor::before,h4>a.anchor::before,h5>a.anchor::before,h6>a.anchor::before{content:"\00A7";font-size:.85em;display:block;padding-top:.1em}
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#content h1:hover>a.anchor,#content h1>a.anchor:hover,h2:hover>a.anchor,h2>a.anchor:hover,h3:hover>a.anchor,#toctitle:hover>a.anchor,.sidebarblock>.content>.title:hover>a.anchor,h3>a.anchor:hover,#toctitle>a.anchor:hover,.sidebarblock>.content>.title>a.anchor:hover,h4:hover>a.anchor,h4>a.anchor:hover,h5:hover>a.anchor,h5>a.anchor:hover,h6:hover>a.anchor,h6>a.anchor:hover{visibility:visible}
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#content h1>a.link,h2>a.link,h3>a.link,#toctitle>a.link,.sidebarblock>.content>.title>a.link,h4>a.link,h5>a.link,h6>a.link{color:#ba3925;text-decoration:none}
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#content h1>a.link:hover,h2>a.link:hover,h3>a.link:hover,#toctitle>a.link:hover,.sidebarblock>.content>.title>a.link:hover,h4>a.link:hover,h5>a.link:hover,h6>a.link:hover{color:#a53221}
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.audioblock,.imageblock,.literalblock,.listingblock,.stemblock,.videoblock{margin-bottom:1.25em}
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.admonitionblock td.content>.title,.audioblock>.title,.exampleblock>.title,.imageblock>.title,.listingblock>.title,.literalblock>.title,.stemblock>.title,.openblock>.title,.paragraph>.title,.quoteblock>.title,table.tableblock>.title,.verseblock>.title,.videoblock>.title,.dlist>.title,.olist>.title,.ulist>.title,.qlist>.title,.hdlist>.title{text-rendering:optimizeLegibility;text-align:left;font-family:"Noto Serif","DejaVu Serif",serif;font-size:1rem;font-style:italic}
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table.tableblock.fit-content>caption.title{white-space:nowrap;width:0}
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.paragraph.lead>p,#preamble>.sectionbody>[class="paragraph"]:first-of-type p{font-size:1.21875em;line-height:1.6;color:rgba(0,0,0,.85)}
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table.tableblock #preamble>.sectionbody>[class="paragraph"]:first-of-type p{font-size:inherit}
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.admonitionblock>table{border-collapse:separate;border:0;background:none;width:100%}
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.admonitionblock>table td.icon{text-align:center;width:80px}
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.admonitionblock>table td.icon img{max-width:none}
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.admonitionblock>table td.icon .title{font-weight:bold;font-family:"Open Sans","DejaVu Sans",sans-serif;text-transform:uppercase}
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.admonitionblock>table td.content{padding-left:1.125em;padding-right:1.25em;border-left:1px solid #dddddf;color:rgba(0,0,0,.6)}
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.admonitionblock>table td.content>:last-child>:last-child{margin-bottom:0}
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.exampleblock>.content{border-style:solid;border-width:1px;border-color:#e6e6e6;margin-bottom:1.25em;padding:1.25em;background:#fff;-webkit-border-radius:4px;border-radius:4px}
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.exampleblock>.content>:first-child{margin-top:0}
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.exampleblock>.content>:last-child{margin-bottom:0}
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.sidebarblock{border-style:solid;border-width:1px;border-color:#e0e0dc;margin-bottom:1.25em;padding:1.25em;background:#f8f8f7;-webkit-border-radius:4px;border-radius:4px}
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.sidebarblock>:first-child{margin-top:0}
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.sidebarblock>:last-child{margin-bottom:0}
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.sidebarblock>.content>.title{color:#7a2518;margin-top:0;text-align:center}
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.exampleblock>.content>:last-child>:last-child,.exampleblock>.content .olist>ol>li:last-child>:last-child,.exampleblock>.content .ulist>ul>li:last-child>:last-child,.exampleblock>.content .qlist>ol>li:last-child>:last-child,.sidebarblock>.content>:last-child>:last-child,.sidebarblock>.content .olist>ol>li:last-child>:last-child,.sidebarblock>.content .ulist>ul>li:last-child>:last-child,.sidebarblock>.content .qlist>ol>li:last-child>:last-child{margin-bottom:0}
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.literalblock pre,.listingblock pre:not(.highlight),.listingblock pre[class="highlight"],.listingblock pre[class^="highlight "],.listingblock pre.CodeRay,.listingblock pre.prettyprint{background:#f7f7f8}
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.sidebarblock .literalblock pre,.sidebarblock .listingblock pre:not(.highlight),.sidebarblock .listingblock pre[class="highlight"],.sidebarblock .listingblock pre[class^="highlight "],.sidebarblock .listingblock pre.CodeRay,.sidebarblock .listingblock pre.prettyprint{background:#f2f1f1}
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.literalblock pre,.literalblock pre[class],.listingblock pre,.listingblock pre[class]{-webkit-border-radius:4px;border-radius:4px;word-wrap:break-word;overflow-x:auto;padding:1em;font-size:.8125em}
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</head>
|
|
<body class="manpage">
|
|
<div id="header">
|
|
<h1>git-gc(1) Manual Page</h1>
|
|
<h2 id="_name">NAME</h2>
|
|
<div class="sectionbody">
|
|
<p>git-gc - Cleanup unnecessary files and optimize the local repository</p>
|
|
</div>
|
|
</div>
|
|
<div id="content">
|
|
<div class="sect1">
|
|
<h2 id="_synopsis">SYNOPSIS</h2>
|
|
<div class="sectionbody">
|
|
<div class="verseblock">
|
|
<pre class="content"><em>git gc</em> [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] [--force] [--keep-largest-pack]</pre>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_description">DESCRIPTION</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p>Runs a number of housekeeping tasks within the current repository,
|
|
such as compressing file revisions (to reduce disk space and increase
|
|
performance), removing unreachable objects which may have been
|
|
created from prior invocations of <em>git add</em>, packing refs, pruning
|
|
reflog, rerere metadata or stale working trees. May also update ancillary
|
|
indexes such as the commit-graph.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>Users are encouraged to run this task on a regular basis within
|
|
each repository to maintain good disk space utilization and good
|
|
operating performance.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>Some git commands may automatically run <em>git gc</em>; see the <code>--auto</code> flag
|
|
below for details. If you know what you’re doing and all you want is to
|
|
disable this behavior permanently without further considerations, just do:</p>
|
|
</div>
|
|
<div class="listingblock">
|
|
<div class="content">
|
|
<pre>$ git config --global gc.auto 0</pre>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_options">OPTIONS</h2>
|
|
<div class="sectionbody">
|
|
<div class="dlist">
|
|
<dl>
|
|
<dt class="hdlist1">--aggressive</dt>
|
|
<dd>
|
|
<p>Usually <em>git gc</em> runs very quickly while providing good disk
|
|
space utilization and performance. This option will cause
|
|
<em>git gc</em> to more aggressively optimize the repository at the expense
|
|
of taking much more time. The effects of this optimization are
|
|
persistent, so this option only needs to be used occasionally; every
|
|
few hundred changesets or so.</p>
|
|
</dd>
|
|
<dt class="hdlist1">--auto</dt>
|
|
<dd>
|
|
<p>With this option, <em>git gc</em> checks whether any housekeeping is
|
|
required; if not, it exits without performing any work.
|
|
Some git commands run <code>git gc --auto</code> after performing
|
|
operations that could create many loose objects. Housekeeping
|
|
is required if there are too many loose objects or too many
|
|
packs in the repository.</p>
|
|
<div class="paragraph">
|
|
<p>If the number of loose objects exceeds the value of the <code>gc.auto</code>
|
|
configuration variable, then all loose objects are combined into a
|
|
single pack using <code>git repack -d -l</code>. Setting the value of <code>gc.auto</code>
|
|
to 0 disables automatic packing of loose objects.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>If the number of packs exceeds the value of <code>gc.autoPackLimit</code>,
|
|
then existing packs (except those marked with a <code>.keep</code> file
|
|
or over <code>gc.bigPackThreshold</code> limit)
|
|
are consolidated into a single pack by using the <code>-A</code> option of
|
|
<em>git repack</em>.
|
|
If the amount of memory is estimated not enough for <code>git repack</code> to
|
|
run smoothly and <code>gc.bigPackThreshold</code> is not set, the largest
|
|
pack will also be excluded (this is the equivalent of running <code>git gc</code>
|
|
with <code>--keep-base-pack</code>).
|
|
Setting <code>gc.autoPackLimit</code> to 0 disables automatic consolidation of
|
|
packs.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>If houskeeping is required due to many loose objects or packs, all
|
|
other housekeeping tasks (e.g. rerere, working trees, reflog…​) will
|
|
be performed as well.</p>
|
|
</div>
|
|
</dd>
|
|
<dt class="hdlist1">--prune=<date></dt>
|
|
<dd>
|
|
<p>Prune loose objects older than date (default is 2 weeks ago,
|
|
overridable by the config variable <code>gc.pruneExpire</code>).
|
|
--prune=all prunes loose objects regardless of their age and
|
|
increases the risk of corruption if another process is writing to
|
|
the repository concurrently; see "NOTES" below. --prune is on by
|
|
default.</p>
|
|
</dd>
|
|
<dt class="hdlist1">--no-prune</dt>
|
|
<dd>
|
|
<p>Do not prune any loose objects.</p>
|
|
</dd>
|
|
<dt class="hdlist1">--quiet</dt>
|
|
<dd>
|
|
<p>Suppress all progress reports.</p>
|
|
</dd>
|
|
<dt class="hdlist1">--force</dt>
|
|
<dd>
|
|
<p>Force <code>git gc</code> to run even if there may be another <code>git gc</code>
|
|
instance running on this repository.</p>
|
|
</dd>
|
|
<dt class="hdlist1">--keep-largest-pack</dt>
|
|
<dd>
|
|
<p>All packs except the largest pack and those marked with a
|
|
<code>.keep</code> files are consolidated into a single pack. When this
|
|
option is used, <code>gc.bigPackThreshold</code> is ignored.</p>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_configuration">CONFIGURATION</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.reflogExpire</code> can be
|
|
set to indicate how long historical entries within each branch’s
|
|
reflog should remain available in this repository. The setting is
|
|
expressed as a length of time, for example <em>90 days</em> or <em>3 months</em>.
|
|
It defaults to <em>90 days</em>.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.reflogExpireUnreachable</code>
|
|
can be set to indicate how long historical reflog entries which
|
|
are not part of the current branch should remain available in
|
|
this repository. These types of entries are generally created as
|
|
a result of using <code>git commit --amend</code> or <code>git rebase</code> and are the
|
|
commits prior to the amend or rebase occurring. Since these changes
|
|
are not part of the current project most users will want to expire
|
|
them sooner. This option defaults to <em>30 days</em>.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The above two configuration variables can be given to a pattern. For
|
|
example, this sets non-default expiry values only to remote-tracking
|
|
branches:</p>
|
|
</div>
|
|
<div class="listingblock">
|
|
<div class="content">
|
|
<pre>[gc "refs/remotes/*"]
|
|
reflogExpire = never
|
|
reflogExpireUnreachable = 3 days</pre>
|
|
</div>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.rerereResolved</code> indicates
|
|
how long records of conflicted merge you resolved earlier are
|
|
kept. This defaults to 60 days.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.rerereUnresolved</code> indicates
|
|
how long records of conflicted merge you have not resolved are
|
|
kept. This defaults to 15 days.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.packRefs</code> determines if
|
|
<em>git gc</em> runs <em>git pack-refs</em>. This can be set to "notbare" to enable
|
|
it within all non-bare repos or it can be set to a boolean value.
|
|
This defaults to true.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.writeCommitGraph</code> determines if
|
|
<em>git gc</em> should run <em>git commit-graph write</em>. This can be set to a
|
|
boolean value. This defaults to false.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.aggressiveWindow</code> controls how
|
|
much time is spent optimizing the delta compression of the objects in
|
|
the repository when the --aggressive option is specified. The larger
|
|
the value, the more time is spent optimizing the delta compression. See
|
|
the documentation for the --window option in <a href="git-repack.html">git-repack</a>(1) for
|
|
more details. This defaults to 250.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>Similarly, the optional configuration variable <code>gc.aggressiveDepth</code>
|
|
controls --depth option in <a href="git-repack.html">git-repack</a>(1). This defaults to 50.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>The optional configuration variable <code>gc.pruneExpire</code> controls how old
|
|
the unreferenced loose objects have to be before they are pruned. The
|
|
default is "2 weeks ago".</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>Optional configuration variable <code>gc.worktreePruneExpire</code> controls how
|
|
old a stale working tree should be before <code>git worktree prune</code> deletes
|
|
it. Default is "3 months ago".</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_notes">NOTES</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p><em>git gc</em> tries very hard not to delete objects that are referenced
|
|
anywhere in your repository. In
|
|
particular, it will keep not only objects referenced by your current set
|
|
of branches and tags, but also objects referenced by the index,
|
|
remote-tracking branches, refs saved by <em>git filter-branch</em> in
|
|
refs/original/, or reflogs (which may reference commits in branches
|
|
that were later amended or rewound).
|
|
If you are expecting some objects to be deleted and they aren’t, check
|
|
all of those locations and decide whether it makes sense in your case to
|
|
remove those references.</p>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>On the other hand, when <em>git gc</em> runs concurrently with another process,
|
|
there is a risk of it deleting an object that the other process is using
|
|
but hasn’t created a reference to. This may just cause the other process
|
|
to fail or may corrupt the repository if the other process later adds a
|
|
reference to the deleted object. Git has two features that significantly
|
|
mitigate this problem:</p>
|
|
</div>
|
|
<div class="olist arabic">
|
|
<ol class="arabic">
|
|
<li>
|
|
<p>Any object with modification time newer than the <code>--prune</code> date is kept,
|
|
along with everything reachable from it.</p>
|
|
</li>
|
|
<li>
|
|
<p>Most operations that add an object to the database update the
|
|
modification time of the object if it is already present so that #1
|
|
applies.</p>
|
|
</li>
|
|
</ol>
|
|
</div>
|
|
<div class="paragraph">
|
|
<p>However, these features fall short of a complete solution, so users who
|
|
run commands concurrently have to live with some risk of corruption (which
|
|
seems to be low in practice) unless they turn off automatic garbage
|
|
collection with <em>git config gc.auto 0</em>.</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_hooks">HOOKS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p>The <em>git gc --auto</em> command will run the <em>pre-auto-gc</em> hook. See
|
|
<a href="githooks.html">githooks</a>(5) for more information.</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_see_also">SEE ALSO</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p><a href="git-prune.html">git-prune</a>(1)
|
|
<a href="git-reflog.html">git-reflog</a>(1)
|
|
<a href="git-repack.html">git-repack</a>(1)
|
|
<a href="git-rerere.html">git-rerere</a>(1)</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_git">GIT</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph">
|
|
<p>Part of the <a href="git.html">git</a>(1) suite</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div id="footer">
|
|
<div id="footer-text">
|
|
Last updated 2019-02-26 19:31:11 UTC
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |