upstream/mercurial-mirror Files · mercurial/templates/paper/filelog.tmpl

revlog: add a mechanism to verify expected file position before appending...

revlog: add a mechanism to verify expected file position before appending If someone uses `hg debuglocks`, or some non-hg process writes to the .hg directory without respecting the locks, or if the repo's on a networked filesystem, it's possible for the revlog code to write out corrupted data. The form of this corruption can vary depending on what data was written and how that happened. We are in the "networked filesystem" case (though I've had users also do this to themselves with the "`hg debuglocks`" scenario), and most often see this with the changelog. What ends up happening is we produce two items (let's call them rev1 and rev2) in the .i file that have the same linkrev, baserev, and offset into the .d file, while the data in the .d file is appended properly. rev2's compressed_size is accurate for rev2, but when we go to decompress the data in the .d file, we use the offset that's recorded in the index file, which is the same as rev1, and attempt to decompress rev2.compressed_size bytes of rev1's data. This usually does not succeed. :) When using inline data, this also fails, though I haven't investigated why too closely. This shows up as a "patch decode" error. I believe what's happening there is that we're basically ignoring the offset field, getting the data properly, but since baserev != rev, it thinks this is a delta based on rev (instead of a full text) and can't actually apply it as such. For now, I'm going to make this an optional component and default it to entirely off. I may increase the default severity of this in the future, once I've enabled it for my users and we gain more experience with it. Luckily, most of my users have a versioned filesystem and can roll back to before the corruption has been written, it's just a hassle to do so and not everyone knows how (so it's a support burden). Users on other filesystems will not have that luxury, and this can cause them to have a corrupted repository that they are unlikely to know how to resolve, and they'll see this as a data-loss event. Refusing to create the corruption is a much better user experience. This mechanism is not perfect. There may be false-negatives (racy writes that are not detected). There should not be any false-positives (non-racy writes that are detected as such). This is not a mechanism that makes putting a repo on a networked filesystem "safe" or "supported", just *less* likely to cause corruption. Differential Revision: https://phab.mercurial-scm.org/D9952

Jordi Gutiérrez Hermoso - - Load All Authors

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        Dan Villiom Podlaski Christiansen
    
setup: install translation files as package data...

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      {header}

      <title>{repo|escape}: {file|escape} history</title>

      <link rel="alternate" type="application/atom+xml"

        Thomas Arendsen Hein
    
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         href="{url|urlescape}atom-log/tip/{file|urlescape}" title="Atom feed for {repo|escape}:{file}" />

        Dan Villiom Podlaski Christiansen
    
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              r9999
            
      <link rel="alternate" type="application/rss+xml"

        Thomas Arendsen Hein
    
hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...

              r18526
            
         href="{url|urlescape}rss-log/tip/{file|urlescape}" title="RSS feed for {repo|escape}:{file}" />

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      </head>

      <body>

      <div class="container">

      <div class="menu">

      <div class="logo">

        Steven Stallion
    
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      <a href="{logourl}">

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      <img src="{staticurl|urlescape}{logoimg}" alt="mercurial" /></a>

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      </div>

      <ul>

        av6
    
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      <li><a href="{url|urlescape}shortlog/{symrev}{sessionvars%urlparameter}">log</a></li>

      <li><a href="{url|urlescape}graph/{symrev}{sessionvars%urlparameter}">graph</a></li>

        Thomas Arendsen Hein
    
hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...

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      <li><a href="{url|urlescape}tags{sessionvars%urlparameter}">tags</a></li>

      <li><a href="{url|urlescape}bookmarks{sessionvars%urlparameter}">bookmarks</a></li>

      <li><a href="{url|urlescape}branches{sessionvars%urlparameter}">branches</a></li>

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      </ul>

      <ul>

        av6
    
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      <li><a href="{url|urlescape}rev/{symrev}{sessionvars%urlparameter}">changeset</a></li>

      <li><a href="{url|urlescape}file/{symrev}{path|urlescape}{sessionvars%urlparameter}">browse</a></li>

        Dan Villiom Podlaski Christiansen
    
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              r9999
            
      </ul>

      <ul>

        av6
    
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      <li><a href="{url|urlescape}file/{symrev}/{file|urlescape}{sessionvars%urlparameter}">file</a></li>

      <li><a href="{url|urlescape}diff/{symrev}/{file|urlescape}{sessionvars%urlparameter}">diff</a></li>

      <li><a href="{url|urlescape}comparison/{symrev}/{file|urlescape}{sessionvars%urlparameter}">comparison</a></li>

      <li><a href="{url|urlescape}annotate/{symrev}/{file|urlescape}{sessionvars%urlparameter}">annotate</a></li>

        Dan Villiom Podlaski Christiansen
    
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      <li class="active">file log</li>

        av6
    
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      <li><a href="{url|urlescape}raw-file/{symrev}/{file|urlescape}">raw</a></li>

        Dan Villiom Podlaski Christiansen
    
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      </ul>

        Augie Fackler
    
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      <ul>

        Thomas Arendsen Hein
    
hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...

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      <li><a href="{url|urlescape}help{sessionvars%urlparameter}">help</a></li>

        Augie Fackler
    
hgweb: add help link to templates missed in ead4e21f49f1

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      </ul>

        Angel Ezquerra
    
hgweb: add (Atom) subscribe link to the main paper template pages...

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      <div class="atom-logo">

        Yoshinari Takaoka
    
hgweb: fixed invalid atom-log feed url in file log page...

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      <a href="{url|urlescape}atom-log/tip/{file|urlescape}" title="subscribe to atom feed">

        Anton Shestakov
    
hgweb: close <img> elements...

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      <img class="atom-logo" src="{staticurl|urlescape}feed-icon-14x14.png" alt="atom feed" />

      </a>

        Angel Ezquerra
    
hgweb: add (Atom) subscribe link to the main paper template pages...

              r18200
            
      </div>

        Dan Villiom Podlaski Christiansen
    
setup: install translation files as package data...

              r9999
            
      </div>

      <div class="main">

        Angel Ezquerra <angel.ezquerra at gmail.com>
    
hgweb: add a "URL breadcrumb" to the index and repository pages...

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      <h2 class="breadcrumb"><a href="/">Mercurial</a> {pathdef%breadcrumb}</h2>

        av6
    
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      <h3>

       log {file|escape} @ {rev}:<a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a>

        av6
    
hgweb: move changeset "tags" to a template in map file (paper and coal)...

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       {alltags}

        Denis Laxalde
    
hgweb: handle a "linerange" request parameter in filelog command...

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       {if(linerange,

        Jordi Gutiérrez Hermoso
    
templates: reword 'back to filelog' link anchor text...

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      ' (following lines {linerange}{if(descend, ', descending')} <a href="{url|urlescape}log/{symrev}/{file|urlescape}{sessionvars%urlparameter}">all revisions for this file</a>)')}

        av6
    
paper: show current revision on file log page...

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      </h3>

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        Gregory Szorc
    
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      {searchform}

        Dan Villiom Podlaski Christiansen
    
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        Dirkjan Ochtman
    
hgweb: add less/more links to shortlog/filelog nav

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      <div class="navigate">

        av6
    
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      <a href="{url|urlescape}log/{symrev}/{file|urlescape}{lessvars%urlparameter}">less</a>

      <a href="{url|urlescape}log/{symrev}/{file|urlescape}{morevars%urlparameter}">more</a>

        Nicolas Dumazet
    
hgweb: changenav: separate pages before and after the current position...

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      | {nav%filenav}</div>

        Dan Villiom Podlaski Christiansen
    
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              r9999
            
      <table class="bigtable">

        Anton Shestakov
    
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      <thead>

        Dan Villiom Podlaski Christiansen
    
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       <tr>

        <th class="age">age</th>

        <th class="author">author</th>

        <th class="description">description</th>

       </tr>

        Anton Shestakov
    
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      </thead>

        Alexander Plavin
    
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      <tbody class="stripes2">

        Dan Villiom Podlaski Christiansen
    
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      {entries%filelogentry}

        Alexander Plavin
    
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      </tbody>

        Dan Villiom Podlaski Christiansen
    
setup: install translation files as package data...

              r9999
            
      </table>

        Dirkjan Ochtman
    
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              r10246
            
      <div class="navigate">

        av6
    
hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...

              r25606
            
      <a href="{url|urlescape}log/{symrev}/{file|urlescape}{lessvars%urlparameter}">less</a>

      <a href="{url|urlescape}log/{symrev}/{file|urlescape}{morevars%urlparameter}">more</a>

        Nicolas Dumazet
    
hgweb: changenav: separate pages before and after the current position...

              r10254
            
      | {nav%filenav}

        Dirkjan Ochtman
    
hgweb: add less/more links to shortlog/filelog nav

              r10246
            
      </div>

        Dan Villiom Podlaski Christiansen
    
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      </div>

      </div>

      {footer}

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	{header}
		<title>{repo\|escape}: {file\|escape} history</title>
		<link rel="alternate" type="application/atom+xml"
Thomas Arendsen Hein hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...	r18526	href="{url\|urlescape}atom-log/tip/{file\|urlescape}" title="Atom feed for {repo\|escape}:{file}" />
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	<link rel="alternate" type="application/rss+xml"
Thomas Arendsen Hein hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...	r18526	href="{url\|urlescape}rss-log/tip/{file\|urlescape}" title="RSS feed for {repo\|escape}:{file}" />
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</head>
		<body>

		<div class="container">
		<div class="menu">
		<div class="logo">
Steven Stallion hgweb: support alternate logo url...	r13964	<a href="{logourl}">
Thomas Arendsen Hein hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...	r18526	<img src="{staticurl\|urlescape}{logoimg}" alt="mercurial" /></a>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</div>
		<ul>
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<li><a href="{url\|urlescape}shortlog/{symrev}{sessionvars%urlparameter}">log</a></li>
		<li><a href="{url\|urlescape}graph/{symrev}{sessionvars%urlparameter}">graph</a></li>
Thomas Arendsen Hein hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...	r18526	<li><a href="{url\|urlescape}tags{sessionvars%urlparameter}">tags</a></li>
		<li><a href="{url\|urlescape}bookmarks{sessionvars%urlparameter}">bookmarks</a></li>
		<li><a href="{url\|urlescape}branches{sessionvars%urlparameter}">branches</a></li>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</ul>
		<ul>
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<li><a href="{url\|urlescape}rev/{symrev}{sessionvars%urlparameter}">changeset</a></li>
		<li><a href="{url\|urlescape}file/{symrev}{path\|urlescape}{sessionvars%urlparameter}">browse</a></li>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</ul>
		<ul>
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<li><a href="{url\|urlescape}file/{symrev}/{file\|urlescape}{sessionvars%urlparameter}">file</a></li>
		<li><a href="{url\|urlescape}diff/{symrev}/{file\|urlescape}{sessionvars%urlparameter}">diff</a></li>
		<li><a href="{url\|urlescape}comparison/{symrev}/{file\|urlescape}{sessionvars%urlparameter}">comparison</a></li>
		<li><a href="{url\|urlescape}annotate/{symrev}/{file\|urlescape}{sessionvars%urlparameter}">annotate</a></li>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	<li class="active">file log</li>
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<li><a href="{url\|urlescape}raw-file/{symrev}/{file\|urlescape}">raw</a></li>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</ul>
Augie Fackler hgweb: add help link to templates missed in ead4e21f49f1	r12680	<ul>
Thomas Arendsen Hein hgweb: urlescape all urls, HTML escape repo/tag/branch/... names...	r18526	<li><a href="{url\|urlescape}help{sessionvars%urlparameter}">help</a></li>
Augie Fackler hgweb: add help link to templates missed in ead4e21f49f1	r12680	</ul>
Angel Ezquerra hgweb: add (Atom) subscribe link to the main paper template pages...	r18200	<div class="atom-logo">
Yoshinari Takaoka hgweb: fixed invalid atom-log feed url in file log page...	r27554	<a href="{url\|urlescape}atom-log/tip/{file\|urlescape}" title="subscribe to atom feed">
Anton Shestakov hgweb: close <img> elements...	r23830	<img class="atom-logo" src="{staticurl\|urlescape}feed-icon-14x14.png" alt="atom feed" />
		</a>
Angel Ezquerra hgweb: add (Atom) subscribe link to the main paper template pages...	r18200	</div>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</div>

		<div class="main">
Angel Ezquerra <angel.ezquerra at gmail.com> hgweb: add a "URL breadcrumb" to the index and repository pages...	r18258	<h2 class="breadcrumb"><a href="/">Mercurial</a> {pathdef%breadcrumb}</h2>
av6 paper: show current revision on file log page...	r27081	<h3>
		log {file\|escape} @ {rev}:<a href="{url\|urlescape}rev/{node\|short}{sessionvars%urlparameter}">{node\|short}</a>
av6 hgweb: move changeset "tags" to a template in map file (paper and coal)...	r35055	{alltags}
Denis Laxalde hgweb: handle a "linerange" request parameter in filelog command...	r31665	{if(linerange,
Jordi Gutiérrez Hermoso templates: reword 'back to filelog' link anchor text...	r35089	' (following lines {linerange}{if(descend, ', descending')} <a href="{url\|urlescape}log/{symrev}/{file\|urlescape}{sessionvars%urlparameter}">all revisions for this file</a>)')}
av6 paper: show current revision on file log page...	r27081	</h3>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999
Gregory Szorc hgweb: consolidate search form for paper...	r32758	{searchform}
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999
Dirkjan Ochtman hgweb: add less/more links to shortlog/filelog nav	r10246	<div class="navigate">
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<a href="{url\|urlescape}log/{symrev}/{file\|urlescape}{lessvars%urlparameter}">less</a>
		<a href="{url\|urlescape}log/{symrev}/{file\|urlescape}{morevars%urlparameter}">more</a>
Nicolas Dumazet hgweb: changenav: separate pages before and after the current position...	r10254	\| {nav%filenav}</div>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999
		<table class="bigtable">
Anton Shestakov hgweb: replace implicit <tbody> with explicit <thead> where appropriate...	r24054	<thead>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	<tr>
		<th class="age">age</th>
		<th class="author">author</th>
		<th class="description">description</th>
		</tr>
Anton Shestakov hgweb: replace implicit <tbody> with explicit <thead> where appropriate...	r24054	</thead>
Alexander Plavin hgweb: make stripes in file log with CSS	r19454	<tbody class="stripes2">
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	{entries%filelogentry}
Alexander Plavin hgweb: make stripes in file log with CSS	r19454	</tbody>
Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</table>

Dirkjan Ochtman hgweb: add less/more links to shortlog/filelog nav	r10246	<div class="navigate">
av6 hgweb: don't dereference symbolic revision in paper & coal style (issue2296)...	r25606	<a href="{url\|urlescape}log/{symrev}/{file\|urlescape}{lessvars%urlparameter}">less</a>
		<a href="{url\|urlescape}log/{symrev}/{file\|urlescape}{morevars%urlparameter}">more</a>
Nicolas Dumazet hgweb: changenav: separate pages before and after the current position...	r10254	\| {nav%filenav}
Dirkjan Ochtman hgweb: add less/more links to shortlog/filelog nav	r10246	</div>

Dan Villiom Podlaski Christiansen setup: install translation files as package data...	r9999	</div>
		</div>

		{footer}