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util.datestr: do not crash on revisions with negative timestamp (issue2513)...
util.datestr: do not crash on revisions with negative timestamp (issue2513) Python's time.gmtime(lt) fails on Windows, producing a traceback with ValueError: (22, 'Invalid argument') if lt < -43200. We get a local time boundary value of -43200 if we take "the epoch" Thu Jan 01 00:00:00 1970 = time.gmtime(0) from timezone 'UTC+0' into timezone 'UTC-12'. All other timezones will have larger local time values for that point in time. Aborting with a traceback on 'hg log' for revisions with a timestamp value < -43200 is clearly not acceptable. Returning "invalid timestamp" or similar as string representation is not an option either, since that may crash other tools which parse the output of 'hg log'. Instead, we teach util.datestr() to return the epoch in timezone UTC+0 on *all platforms*, represented by the string Thu Jan 01 00:00:00 1970 +0000 if the timestamp's unix time value is negative. (based on a patch originally proposed by Benjamin Pollack)

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mercurial.wxs
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<?xml version='1.0' encoding='windows-1252'?>
<Wix xmlns='http://schemas.microsoft.com/wix/2006/wi'>
<!-- Copyright 2010 Steve Borho <steve@borho.org>
This software may be used and distributed according to the terms of the
GNU General Public License version 2 or any later version. -->
<?include guids.wxi ?>
<Product Id='*'
Name='Mercurial $(var.Version)'
UpgradeCode='$(var.ProductUpgradeCode)'
Language='1033' Codepage='1252' Version='$(var.Version)'
Manufacturer='Matt Mackall and others'>
<Package Id='*'
Keywords='Installer'
Description="Mercurial distributed SCM (version $(var.Version))"
Comments='$(var.Comments)'
Manufacturer='Matt Mackall and others'
InstallerVersion='300' Languages='1033' Compressed='yes' SummaryCodepage='1252' />
<Media Id='1' Cabinet='mercurial.cab' EmbedCab='yes' DiskPrompt='CD-ROM #1'
CompressionLevel='high' />
<Property Id='DiskPrompt' Value="Mercurial $(var.Version) Installation [1]" />
<Condition Message='Mercurial requires Windows XP or higher'
>VersionNT >= 501</Condition>
<Property Id="INSTALLDIR">
<ComponentSearch Id='SearchForMainExecutableComponent'
Guid='$(var.ComponentMainExecutableGUID)' />
</Property>
<!--Property Id='ARPCOMMENTS'>any comments</Property-->
<Property Id='ARPCONTACT'>mercurial@selenic.com</Property>
<Property Id='ARPHELPLINK'>http://mercurial.selenic.com/wiki/</Property>
<Property Id='ARPURLINFOABOUT'>http://mercurial.selenic.com/about/</Property>
<Property Id='ARPURLUPDATEINFO'>http://mercurial.selenic.com/downloads/</Property>
<Property Id='ARPHELPTELEPHONE'>http://mercurial.selenic.com/wiki/Support</Property>
<Property Id='ARPPRODUCTICON'>hgIcon.ico</Property>
<Property Id='INSTALLEDMERCURIALPRODUCTS' Secure='yes'></Property>
<Property Id='REINSTALLMODE'>amus</Property>
<!--Auto-accept the license page-->
<Property Id='LicenseAccepted'>1</Property>
<Directory Id='TARGETDIR' Name='SourceDir'>
<Directory Id='ProgramFilesFolder' Name='PFiles'>
<Directory Id='INSTALLDIR' Name='Mercurial'>
<Component Id='MainExecutable' Guid='$(var.ComponentMainExecutableGUID)'>
<File Id='hgEXE' Name='hg.exe' Source='dist\hg.exe' KeyPath='yes' />
<File Id='libraryZIP' Name='library.zip' Source='dist\library.zip' />
<File Id='pythonDLL' Name='python26.dll' Source='dist\python26.dll' />
<Environment Id="Environment" Name="PATH" Part="last" System="yes"
Permanent="no" Value="[INSTALLDIR]" Action="set" />
</Component>
<Component Id='ReadMe' Guid='$(var.ReadMe.guid)'>
<File Id='ReadMe' Name='ReadMe.html' Source='contrib\win32\ReadMe.html'
KeyPath='yes'/>
</Component>
<Component Id='COPYING' Guid='$(var.COPYING.guid)'>
<File Id='COPYING' Name='COPYING.rtf' Source='contrib\wix\COPYING.rtf'
KeyPath='yes'/>
</Component>
<Directory Id='HGRCD' Name='hgrc.d'>
<Component Id='mercurial.rc' Guid='$(var.mercurial.rc.guid)'>
<File Id='mercurial.rc' Name='Mercurial.rc' Source='contrib\win32\mercurial.ini'
ReadOnly='yes' KeyPath='yes'/>
</Component>
<Component Id='mergetools.rc' Guid='$(var.mergetools.rc.guid)'>
<File Id='mergetools.rc' Name='MergeTools.rc' Source='contrib\mergetools.hgrc'
ReadOnly='yes' KeyPath='yes'/>
</Component>
</Directory>
</Directory>
</Directory>
<Directory Id="ProgramMenuFolder" Name="Programs">
<Directory Id="ProgramMenuDir" Name="Mercurial $(var.Version)">
<Component Id="ProgramMenuDir" Guid="$(var.ProgramMenuDir.guid)">
<RemoveFolder Id='ProgramMenuDir' On='uninstall' />
<RegistryValue Root='HKCU' Key='Software\Mercurial\InstallDir' Type='string'
Value='[INSTALLDIR]' KeyPath='yes' />
<Shortcut Id='UrlShortcut' Directory='ProgramMenuDir' Name='Mercurial Web Site'
Target='[ARPHELPLINK]' Icon="hgIcon.ico" IconIndex='0' />
</Component>
</Directory>
</Directory>
<Merge Id='VCRuntime' DiskId='1' Language='1033'
SourceFile='$(var.VCRedistSrcDir)\microsoft.vcxx.crt.x86_msm.msm' />
<Merge Id='VCRuntimePolicy' DiskId='1' Language='1033'
SourceFile='$(var.VCRedistSrcDir)\policy.x.xx.microsoft.vcxx.crt.x86_msm.msm' />
</Directory>
<Feature Id='Complete' Title='Mercurial' Description='The complete package'
Display='expand' Level='1' ConfigurableDirectory='INSTALLDIR' >
<Feature Id='MainProgram' Title='Program' Description='Mercurial command line app'
Level='1' Absent='disallow' >
<ComponentRef Id='MainExecutable' />
<ComponentRef Id='ProgramMenuDir' />
<ComponentRef Id='ReadMe' />
<ComponentRef Id='COPYING' />
<ComponentRef Id='mercurial.rc' />
<ComponentRef Id='mergetools.rc' />
<ComponentRef Id='helpFolder' />
<ComponentGroupRef Id='templatesFolder' />
<MergeRef Id='VCRuntime' />
<MergeRef Id='VCRuntimePolicy' />
</Feature>
<Feature Id='Locales' Title='Translations' Description='Translations' Level='1'>
<ComponentGroupRef Id='localeFolder' />
<ComponentRef Id='i18nFolder' />
</Feature>
<Feature Id='Documentation' Title='Documentation' Description='HTML man pages' Level='1'>
<ComponentGroupRef Id='docFolder' />
</Feature>
<Feature Id='Misc' Title='Miscellaneous' Description='Contributed scripts' Level='1'>
<ComponentGroupRef Id='contribFolder' />
</Feature>
</Feature>
<UIRef Id="WixUI_FeatureTree" />
<UIRef Id="WixUI_ErrorProgressText" />
<WixVariable Id="WixUILicenseRtf" Value="contrib\wix\COPYING.rtf" />
<Icon Id="hgIcon.ico" SourceFile="contrib/win32/mercurial.ico" />
<Upgrade Id='$(var.ProductUpgradeCode)'>
<UpgradeVersion
IncludeMinimum='yes' Minimum='0.0.0' IncludeMaximum='no' OnlyDetect='no'
Property='INSTALLEDMERCURIALPRODUCTS' />
</Upgrade>
<InstallExecuteSequence>
<RemoveExistingProducts After='InstallInitialize'/>
</InstallExecuteSequence>
</Product>
</Wix>