What I did was hook in to the OnDetectUpdateBegin() event and create a thread
to check a website, if the website reports that there is an update I enable a
link on the welcome page that calls OnPlan(BOOTSTRAPPER_ACTION_UPDATE_REPLACE).
I set the check link to include the bundle version e.g. Update
Location="https://example.com/checkupgrade.asp?version=1.2.3.4” (this could do
with being a formatted value so that you can use [WixBundleVersion]). The
website returns the update URL and optionally the size of the download.
Most of the code was already in place so I just had to join the dots.
The thread code looks like this:
// Load the update XML from a location url and parse it for an update.
//
// <?xml version="1.0" encoding="utf-8"?>
// <Setup>
// <Upgrade Url="https://somewhere.co.uk/download/Setup.exe";
Size="123" />
// </Setup>
hr = XmlLoadDocumentFromFile(pThis->m_wzUpdateLocation, &pixd);
BalExitOnFailure(hr, "Failed to load version check XML document.");
hr = XmlSelectSingleNode(pixd, L"/Setup/Upgrade", &pNode);
BalExitOnFailure(hr, "Failed to select upgrade node.");
if (S_OK == hr)
{
hr = XmlGetAttributeEx(pNode, L"Url", &sczUpdateUrl);
BalExitOnFailure(hr, "Failed to get url attribute.");
hr = XmlGetAttributeLargeNumber(pNode, L"Size", &qwSize);
pThis->m_fUpdate = (sczUpdateUrl && *sczUpdateUrl);
}
if (pThis->m_fUpdate)
{
BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "Update available, url:
%ls; size: %I64u.", sczUpdateUrl, qwSize);
pThis->m_pEngine->SetUpdate(NULL, sczUpdateUrl, qwSize,
BOOTSTRAPPER_UPDATE_HASH_TYPE_NONE, NULL, 0);
ThemeControlEnable(pThis->m_pTheme, WIXSTDBA_CONTROL_UPGRADE_LINK,
TRUE);
}
else
{
BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "No update available.");
}
I’ll try and create a fork for this tonight.
Neil
From: Rob Mensching [mailto:[email protected]]
Sent: 19 February 2013 15:00
To: Windows Installer XML toolset developer mailing list
Subject: Re: [WiX-devs] WixStdBA and bundle self updates
Implementation stopped in the engine when I couldn't decide whether the engine
should be doing that much work or not. Was the check on the internet something
the BA should do or should the engine provide a default implementation. Since I
didn't have an immediate answer, I fell back to one of the original Burn design
guidelines: "If it can be done in the BA, let the BA do it."
This is something that can be revisited in WiX v3.8 or WiX v4.0.
Note: that original design guideline was in place when there was an enormous
amount of work that had to be accomplished in Burn. It is still a reasonable
good guideline but will change as Burn and the BA relationship matures, I'm
sure. <smile/>
On Mon, Jan 14, 2013 at 8:33 AM, Neil Sleightholm
<[email protected]<mailto:[email protected]>> wrote:
I have implemented it my BA http://wixextba.codeplex.com/ (you need to download
the source to get the compiled version). If you want to know more please start
a discussion on codeplex.
Neil
From: Hoover, Jacob
[mailto:[email protected]<mailto:[email protected]>]
Sent: 14 January 2013 16:23
To: Windows Installer XML toolset developer mailing list
Subject: [WiX-devs] WixStdBA and bundle self updates
Is there any information on the state of self-updates for WixStdBA? I see a
partial implementation inside of DetectUpdate in detect.cpp and
psuedobundle.cpp, but it is commented out. I assume there wasn’t time to
complete it so it was pulled. Are there any plans to finish this in 3.8, or do
we have any documentation on the desired end result? I looked at what was done
in Wix’s own managed BA, and the only question I am pondering is should this
exist in the BA or in the engine?
I assume the same feed would be used by the engine for bundle update
detection as what would be used by ambient, which appears to be a possible
option to integrate a “Check for updates” feature from within an app deployed
with burn.
Thanks,
Jacob
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