GIF89a;
Direktori : /usr/share/doc/git-1.8.3.1/ |
Current File : //usr/share/doc/git-1.8.3.1/git-fsck.html |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" /> <meta name="generator" content="AsciiDoc 8.6.8" /> <title>git-fsck(1)</title> <style type="text/css"> /* Shared CSS for AsciiDoc xhtml11 and html5 backends */ /* Default font. */ body { font-family: Georgia,serif; } /* Title font. */ h1, h2, h3, h4, h5, h6, div.title, caption.title, thead, p.table.header, #toctitle, #author, #revnumber, #revdate, #revremark, #footer { font-family: Arial,Helvetica,sans-serif; } body { margin: 1em 5% 1em 5%; } a { color: blue; text-decoration: underline; } a:visited { color: fuchsia; } em { font-style: italic; color: navy; } strong { font-weight: bold; color: #083194; } h1, h2, h3, h4, h5, h6 { color: #527bbd; margin-top: 1.2em; margin-bottom: 0.5em; line-height: 1.3; } h1, h2, h3 { border-bottom: 2px solid silver; } h2 { padding-top: 0.5em; } h3 { float: left; } h3 + * { clear: left; } h5 { font-size: 1.0em; } div.sectionbody { margin-left: 0; } hr { border: 1px solid silver; } p { margin-top: 0.5em; margin-bottom: 0.5em; } ul, ol, li > p { margin-top: 0; } ul > li { color: #aaa; } ul > li > * { color: black; } .monospaced, code, pre { font-family: "Courier New", Courier, monospace; font-size: inherit; color: navy; padding: 0; margin: 0; } #author { color: #527bbd; font-weight: bold; font-size: 1.1em; } #email { } #revnumber, #revdate, #revremark { } #footer { font-size: small; border-top: 2px solid silver; padding-top: 0.5em; margin-top: 4.0em; } #footer-text { float: left; padding-bottom: 0.5em; } #footer-badges { float: right; padding-bottom: 0.5em; } #preamble { margin-top: 1.5em; margin-bottom: 1.5em; } div.imageblock, div.exampleblock, div.verseblock, div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock, div.admonitionblock { margin-top: 1.0em; margin-bottom: 1.5em; } div.admonitionblock { margin-top: 2.0em; margin-bottom: 2.0em; margin-right: 10%; color: #606060; } div.content { /* Block element content. */ padding: 0; } /* Block element titles. */ div.title, caption.title { color: #527bbd; font-weight: bold; text-align: left; margin-top: 1.0em; margin-bottom: 0.5em; } div.title + * { margin-top: 0; } td div.title:first-child { margin-top: 0.0em; } div.content div.title:first-child { margin-top: 0.0em; } div.content + div.title { margin-top: 0.0em; } div.sidebarblock > div.content { background: #ffffee; border: 1px solid #dddddd; border-left: 4px solid #f0f0f0; padding: 0.5em; } div.listingblock > div.content { border: 1px solid #dddddd; border-left: 5px solid #f0f0f0; background: #f8f8f8; padding: 0.5em; } div.quoteblock, div.verseblock { padding-left: 1.0em; margin-left: 1.0em; margin-right: 10%; border-left: 5px solid #f0f0f0; color: #888; } div.quoteblock > div.attribution { padding-top: 0.5em; text-align: right; } div.verseblock > pre.content { font-family: inherit; font-size: inherit; } div.verseblock > div.attribution { padding-top: 0.75em; text-align: left; } /* DEPRECATED: Pre version 8.2.7 verse style literal block. */ div.verseblock + div.attribution { text-align: left; } div.admonitionblock .icon { vertical-align: top; font-size: 1.1em; font-weight: bold; text-decoration: underline; color: #527bbd; padding-right: 0.5em; } div.admonitionblock td.content { padding-left: 0.5em; border-left: 3px solid #dddddd; } div.exampleblock > div.content { border-left: 3px solid #dddddd; padding-left: 0.5em; } div.imageblock div.content { padding-left: 0; } span.image img { border-style: none; } a.image:visited { color: white; } dl { margin-top: 0.8em; margin-bottom: 0.8em; } dt { margin-top: 0.5em; margin-bottom: 0; font-style: normal; color: navy; } dd > *:first-child { margin-top: 0.1em; } ul, ol { list-style-position: outside; } ol.arabic { list-style-type: decimal; } ol.loweralpha { list-style-type: lower-alpha; } ol.upperalpha { list-style-type: upper-alpha; } ol.lowerroman { list-style-type: lower-roman; } ol.upperroman { list-style-type: upper-roman; } div.compact ul, div.compact ol, div.compact p, div.compact p, div.compact div, div.compact div { margin-top: 0.1em; margin-bottom: 0.1em; } tfoot { font-weight: bold; } td > div.verse { white-space: pre; } div.hdlist { margin-top: 0.8em; margin-bottom: 0.8em; } div.hdlist tr { padding-bottom: 15px; } dt.hdlist1.strong, td.hdlist1.strong { font-weight: bold; } td.hdlist1 { vertical-align: top; font-style: normal; padding-right: 0.8em; color: navy; } td.hdlist2 { vertical-align: top; } div.hdlist.compact tr { margin: 0; padding-bottom: 0; } .comment { background: yellow; } .footnote, .footnoteref { font-size: 0.8em; } span.footnote, span.footnoteref { vertical-align: super; } #footnotes { margin: 20px 0 20px 0; padding: 7px 0 0 0; } #footnotes div.footnote { margin: 0 0 5px 0; } #footnotes hr { border: none; border-top: 1px solid silver; height: 1px; text-align: left; margin-left: 0; width: 20%; min-width: 100px; } div.colist td { padding-right: 0.5em; padding-bottom: 0.3em; vertical-align: top; } div.colist td img { margin-top: 0.3em; } @media print { #footer-badges { display: none; } } #toc { margin-bottom: 2.5em; } #toctitle { color: #527bbd; font-size: 1.1em; font-weight: bold; margin-top: 1.0em; margin-bottom: 0.1em; } div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 { margin-top: 0; margin-bottom: 0; } div.toclevel2 { margin-left: 2em; font-size: 0.9em; } div.toclevel3 { margin-left: 4em; font-size: 0.9em; } div.toclevel4 { margin-left: 6em; font-size: 0.9em; } span.aqua { color: aqua; } span.black { color: black; } span.blue { color: blue; } span.fuchsia { color: fuchsia; } span.gray { color: gray; } span.green { color: green; } span.lime { color: lime; } span.maroon { color: maroon; } span.navy { color: navy; } span.olive { color: olive; } span.purple { color: purple; } span.red { color: red; } span.silver { color: silver; } span.teal { color: teal; } span.white { color: white; } span.yellow { color: yellow; } span.aqua-background { background: aqua; } span.black-background { background: black; } span.blue-background { background: blue; } span.fuchsia-background { background: fuchsia; } span.gray-background { background: gray; } span.green-background { background: green; } span.lime-background { background: lime; } span.maroon-background { background: maroon; } span.navy-background { background: navy; } span.olive-background { background: olive; } span.purple-background { background: purple; } span.red-background { background: red; } span.silver-background { background: silver; } span.teal-background { background: teal; } span.white-background { background: white; } span.yellow-background { background: yellow; } span.big { font-size: 2em; } span.small { font-size: 0.6em; } span.underline { text-decoration: underline; } span.overline { text-decoration: overline; } span.line-through { text-decoration: line-through; } div.unbreakable { page-break-inside: avoid; } /* * xhtml11 specific * * */ div.tableblock { margin-top: 1.0em; margin-bottom: 1.5em; } div.tableblock > table { border: 3px solid #527bbd; } thead, p.table.header { font-weight: bold; color: #527bbd; } p.table { margin-top: 0; } /* Because the table frame attribute is overriden by CSS in most browsers. */ div.tableblock > table[frame="void"] { border-style: none; } div.tableblock > table[frame="hsides"] { border-left-style: none; border-right-style: none; } div.tableblock > table[frame="vsides"] { border-top-style: none; border-bottom-style: none; } /* * html5 specific * * */ table.tableblock { margin-top: 1.0em; margin-bottom: 1.5em; } thead, p.tableblock.header { font-weight: bold; color: #527bbd; } p.tableblock { margin-top: 0; } table.tableblock { border-width: 3px; border-spacing: 0px; border-style: solid; border-color: #527bbd; border-collapse: collapse; } th.tableblock, td.tableblock { border-width: 1px; padding: 4px; border-style: solid; border-color: #527bbd; } table.tableblock.frame-topbot { border-left-style: hidden; border-right-style: hidden; } table.tableblock.frame-sides { border-top-style: hidden; border-bottom-style: hidden; } table.tableblock.frame-none { border-style: hidden; } th.tableblock.halign-left, td.tableblock.halign-left { text-align: left; } th.tableblock.halign-center, td.tableblock.halign-center { text-align: center; } th.tableblock.halign-right, td.tableblock.halign-right { text-align: right; } th.tableblock.valign-top, td.tableblock.valign-top { vertical-align: top; } th.tableblock.valign-middle, td.tableblock.valign-middle { vertical-align: middle; } th.tableblock.valign-bottom, td.tableblock.valign-bottom { vertical-align: bottom; } /* * manpage specific * * */ body.manpage h1 { padding-top: 0.5em; padding-bottom: 0.5em; border-top: 2px solid silver; border-bottom: 2px solid silver; } body.manpage h2 { border-style: none; } body.manpage div.sectionbody { margin-left: 3em; } @media print { body.manpage div#toc { display: none; } } </style> <script type="text/javascript"> /*<![CDATA[*/ var asciidoc = { // Namespace. ///////////////////////////////////////////////////////////////////// // Table Of Contents generator ///////////////////////////////////////////////////////////////////// /* Author: Mihai Bazon, September 2002 * http://students.infoiasi.ro/~mishoo * * Table Of Content generator * Version: 0.4 * * Feel free to use this script under the terms of the GNU General Public * License, as long as you do not remove or alter this notice. */ /* modified by Troy D. Hanson, September 2006. License: GPL */ /* modified by Stuart Rackham, 2006, 2009. License: GPL */ // toclevels = 1..4. toc: function (toclevels) { function getText(el) { var text = ""; for (var i = el.firstChild; i != null; i = i.nextSibling) { if (i.nodeType == 3 /* Node.TEXT_NODE */) // IE doesn't speak constants. text += i.data; else if (i.firstChild != null) text += getText(i); } return text; } function TocEntry(el, text, toclevel) { this.element = el; this.text = text; this.toclevel = toclevel; } function tocEntries(el, toclevels) { var result = new Array; var re = new RegExp('[hH]([1-'+(toclevels+1)+'])'); // Function that scans the DOM tree for header elements (the DOM2 // nodeIterator API would be a better technique but not supported by all // browsers). var iterate = function (el) { for (var i = el.firstChild; i != null; i = i.nextSibling) { if (i.nodeType == 1 /* Node.ELEMENT_NODE */) { var mo = re.exec(i.tagName); if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") { result[result.length] = new TocEntry(i, getText(i), mo[1]-1); } iterate(i); } } } iterate(el); return result; } var toc = document.getElementById("toc"); if (!toc) { return; } // Delete existing TOC entries in case we're reloading the TOC. var tocEntriesToRemove = []; var i; for (i = 0; i < toc.childNodes.length; i++) { var entry = toc.childNodes[i]; if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") && entry.getAttribute("class").match(/^toclevel/)) tocEntriesToRemove.push(entry); } for (i = 0; i < tocEntriesToRemove.length; i++) { toc.removeChild(tocEntriesToRemove[i]); } // Rebuild TOC entries. var entries = tocEntries(document.getElementById("content"), toclevels); for (var i = 0; i < entries.length; ++i) { var entry = entries[i]; if (entry.element.id == "") entry.element.id = "_toc_" + i; var a = document.createElement("a"); a.href = "#" + entry.element.id; a.appendChild(document.createTextNode(entry.text)); var div = document.createElement("div"); div.appendChild(a); div.className = "toclevel" + entry.toclevel; toc.appendChild(div); } if (entries.length == 0) toc.parentNode.removeChild(toc); }, ///////////////////////////////////////////////////////////////////// // Footnotes generator ///////////////////////////////////////////////////////////////////// /* Based on footnote generation code from: * http://www.brandspankingnew.net/archive/2005/07/format_footnote.html */ footnotes: function () { // Delete existing footnote entries in case we're reloading the footnodes. var i; var noteholder = document.getElementById("footnotes"); if (!noteholder) { return; } var entriesToRemove = []; for (i = 0; i < noteholder.childNodes.length; i++) { var entry = noteholder.childNodes[i]; if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") == "footnote") entriesToRemove.push(entry); } for (i = 0; i < entriesToRemove.length; i++) { noteholder.removeChild(entriesToRemove[i]); } // Rebuild footnote entries. var cont = document.getElementById("content"); var spans = cont.getElementsByTagName("span"); var refs = {}; var n = 0; for (i=0; i<spans.length; i++) { if (spans[i].className == "footnote") { n++; var note = spans[i].getAttribute("data-note"); if (!note) { // Use [\s\S] in place of . so multi-line matches work. // Because JavaScript has no s (dotall) regex flag. note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1]; spans[i].innerHTML = "[<a id='_footnoteref_" + n + "' href='#_footnote_" + n + "' title='View footnote' class='footnote'>" + n + "</a>]"; spans[i].setAttribute("data-note", note); } noteholder.innerHTML += "<div class='footnote' id='_footnote_" + n + "'>" + "<a href='#_footnoteref_" + n + "' title='Return to text'>" + n + "</a>. " + note + "</div>"; var id =spans[i].getAttribute("id"); if (id != null) refs["#"+id] = n; } } if (n == 0) noteholder.parentNode.removeChild(noteholder); else { // Process footnoterefs. for (i=0; i<spans.length; i++) { if (spans[i].className == "footnoteref") { var href = spans[i].getElementsByTagName("a")[0].getAttribute("href"); href = href.match(/#.*/)[0]; // Because IE return full URL. n = refs[href]; spans[i].innerHTML = "[<a href='#_footnote_" + n + "' title='View footnote' class='footnote'>" + n + "</a>]"; } } } }, install: function(toclevels) { var timerId; function reinstall() { asciidoc.footnotes(); if (toclevels) { asciidoc.toc(toclevels); } } function reinstallAndRemoveTimer() { clearInterval(timerId); reinstall(); } timerId = setInterval(reinstall, 500); if (document.addEventListener) document.addEventListener("DOMContentLoaded", reinstallAndRemoveTimer, false); else window.onload = reinstallAndRemoveTimer; } } asciidoc.install(); /*]]>*/ </script> </head> <body class="manpage"> <div id="header"> <h1> git-fsck(1) Manual Page </h1> <h2>NAME</h2> <div class="sectionbody"> <p>git-fsck - Verifies the connectivity and validity of the objects in the database </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 fsck</em> [--tags] [--root] [--unreachable] [--cache] [--no-reflogs] [--[no-]full] [--strict] [--verbose] [--lost-found] [--[no-]dangling] [--[no-]progress] [<object>*]</pre> <div class="attribution"> </div></div> </div> </div> <div class="sect1"> <h2 id="_description">DESCRIPTION</h2> <div class="sectionbody"> <div class="paragraph"><p>Verifies the connectivity and validity of the objects in the database.</p></div> </div> </div> <div class="sect1"> <h2 id="_options">OPTIONS</h2> <div class="sectionbody"> <div class="dlist"><dl> <dt class="hdlist1"> <object> </dt> <dd> <p> An object to treat as the head of an unreachability trace. </p> <div class="paragraph"><p>If no objects are given, <em>git fsck</em> defaults to using the index file, all SHA-1 references in <code>refs</code> namespace, and all reflogs (unless --no-reflogs is given) as heads.</p></div> </dd> <dt class="hdlist1"> --unreachable </dt> <dd> <p> Print out objects that exist but that aren’t reachable from any of the reference nodes. </p> </dd> <dt class="hdlist1"> --[no-]dangling </dt> <dd> <p> Print objects that exist but that are never <em>directly</em> used (default). <code>--no-dangling</code> can be used to omit this information from the output. </p> </dd> <dt class="hdlist1"> --root </dt> <dd> <p> Report root nodes. </p> </dd> <dt class="hdlist1"> --tags </dt> <dd> <p> Report tags. </p> </dd> <dt class="hdlist1"> --cache </dt> <dd> <p> Consider any object recorded in the index also as a head node for an unreachability trace. </p> </dd> <dt class="hdlist1"> --no-reflogs </dt> <dd> <p> Do not consider commits that are referenced only by an entry in a reflog to be reachable. This option is meant only to search for commits that used to be in a ref, but now aren’t, but are still in that corresponding reflog. </p> </dd> <dt class="hdlist1"> --full </dt> <dd> <p> Check not just objects in GIT_OBJECT_DIRECTORY ($GIT_DIR/objects), but also the ones found in alternate object pools listed in GIT_ALTERNATE_OBJECT_DIRECTORIES or $GIT_DIR/objects/info/alternates, and in packed Git archives found in $GIT_DIR/objects/pack and corresponding pack subdirectories in alternate object pools. This is now default; you can turn it off with --no-full. </p> </dd> <dt class="hdlist1"> --strict </dt> <dd> <p> Enable more strict checking, namely to catch a file mode recorded with g+w bit set, which was created by older versions of Git. Existing repositories, including the Linux kernel, Git itself, and sparse repository have old objects that triggers this check, but it is recommended to check new projects with this flag. </p> </dd> <dt class="hdlist1"> --verbose </dt> <dd> <p> Be chatty. </p> </dd> <dt class="hdlist1"> --lost-found </dt> <dd> <p> Write dangling objects into .git/lost-found/commit/ or .git/lost-found/other/, depending on type. If the object is a blob, the contents are written into the file, rather than its object name. </p> </dd> <dt class="hdlist1"> --[no-]progress </dt> <dd> <p> Progress status is reported on the standard error stream by default when it is attached to a terminal, unless --no-progress or --verbose is specified. --progress forces progress status even if the standard error stream is not directed to a terminal. </p> </dd> </dl></div> </div> </div> <div class="sect1"> <h2 id="_discussion">DISCUSSION</h2> <div class="sectionbody"> <div class="paragraph"><p>git-fsck tests SHA-1 and general object sanity, and it does full tracking of the resulting reachability and everything else. It prints out any corruption it finds (missing or bad objects), and if you use the <em>--unreachable</em> flag it will also print out objects that exist but that aren’t reachable from any of the specified head nodes (or the default set, as mentioned above).</p></div> <div class="paragraph"><p>Any corrupt objects you will have to find in backups or other archives (i.e., you can just remove them and do an <em>rsync</em> with some other site in the hopes that somebody else has the object you have corrupted).</p></div> </div> </div> <div class="sect1"> <h2 id="_extracted_diagnostics">Extracted Diagnostics</h2> <div class="sectionbody"> <div class="dlist"><dl> <dt class="hdlist1"> expect dangling commits - potential heads - due to lack of head information </dt> <dd> <p> You haven’t specified any nodes as heads so it won’t be possible to differentiate between un-parented commits and root nodes. </p> </dd> <dt class="hdlist1"> missing sha1 directory <em><dir></em> </dt> <dd> <p> The directory holding the sha1 objects is missing. </p> </dd> <dt class="hdlist1"> unreachable <type> <object> </dt> <dd> <p> The <type> object <object>, isn’t actually referred to directly or indirectly in any of the trees or commits seen. This can mean that there’s another root node that you’re not specifying or that the tree is corrupt. If you haven’t missed a root node then you might as well delete unreachable nodes since they can’t be used. </p> </dd> <dt class="hdlist1"> missing <type> <object> </dt> <dd> <p> The <type> object <object>, is referred to but isn’t present in the database. </p> </dd> <dt class="hdlist1"> dangling <type> <object> </dt> <dd> <p> The <type> object <object>, is present in the database but never <em>directly</em> used. A dangling commit could be a root node. </p> </dd> <dt class="hdlist1"> sha1 mismatch <object> </dt> <dd> <p> The database has an object who’s sha1 doesn’t match the database value. This indicates a serious data integrity problem. </p> </dd> </dl></div> </div> </div> <div class="sect1"> <h2 id="_environment_variables">Environment Variables</h2> <div class="sectionbody"> <div class="dlist"><dl> <dt class="hdlist1"> GIT_OBJECT_DIRECTORY </dt> <dd> <p> used to specify the object database root (usually $GIT_DIR/objects) </p> </dd> <dt class="hdlist1"> GIT_INDEX_FILE </dt> <dd> <p> used to specify the index file of the index </p> </dd> <dt class="hdlist1"> GIT_ALTERNATE_OBJECT_DIRECTORIES </dt> <dd> <p> used to specify additional object database roots (usually unset) </p> </dd> </dl></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(1)</a> suite</p></div> </div> </div> </div> <div id="footnotes"><hr /></div> <div id="footer"> <div id="footer-text"> Last updated 2013-06-10 20:01:55 UTC </div> </div> </body> </html>