How do I deduce path to Azure SDK csrun.exe conveniently?

I have some problems with Azure Compute Emulator not restarting properly. To resolve this I want to add csrun /devfabric:stop call to a pre-build step in Visual Studio solution.

The problem is csrun.exe is located in C:\Program Files\Windows Azure SDK\v1.4\bin on my machine and that path is not on the %PATH% directories list. I don't want to hardcode that path in my solution.

Is there some way to deduce the path like using some environment variable or some开发者_Python百科thing similar?

You can read the Azure SDK path from the registry by version. The last part of the path is the version ... Your code can either be set to a version or you can iterate over the v keys finding the latest. I would recommend having a constant for the version you support and as you take a new SDK as a pre-req.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\ServiceHosting\v1.4

There's an "InstallPath" key under those paths.

I had this same problem and I produced a PowerShell script that sets an environment variable with the path to the SDK bin folder. It will automatically search the registry and find the latest installed version. It also has a fallback to the alternate registry location, depending whether your script runs in 32bit or 64bit mode. Hope it helps!

Disclaimer: I removed some stuff from the script before posting it here and I didn't test it afterwards but I think it's not difficult to debug/adjust it to your needs.

#the script attempts to perform the following:
#1. look for the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\ServiceHosting" registry key
#2. if the above key is present then read the child keys and retrieve the largest version number
#3. from the largest version number key retrieve the "InstallPath" string value to determine the path of the latest Azure SDK installation
#4. add an environment variable called "AzureSDKBin" (if not already added) with the path to the "bin" folder of the latest Azure SDK installation

#define the name of the config variable
$azureSDKPathVariable = 'AzureSDKBin'
$azureRegistryKey = 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\ServiceHosting'
$azureAlternateRegistryKey = 'HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\ServiceHosting' #this is in case the PowerShell runs in 32bit mode on a 64bit machine
$azureMatchedKey = ''

#check if the environment variable was already defined
if ([environment]::GetEnvironmentVariable($azureSDKPathVariable,"User").Length -eq 0) {
    'Variable ' + $azureSDKPathVariable + ' is not defined, proceeding...'

    #try reading the registry key
    $keyExists = Get-Item -Path Registry::$azureRegistryKey -ErrorAction SilentlyContinue

    $azureMatchedKey = $azureRegistryKey #make a note that we found this registry key

    #stop if the key does not exist
    if ($keyExists.Length -eq 0) {
        'Could not find registry key in primary location: ' + $azureRegistryKey + ', attempting search in alternate location: ' + $azureAlternateRegistryKey

        #search the alternate location
        $keyExists = Get-Item -Path Registry::$azureAlternateRegistryKey -ErrorAction SilentlyContinue

        $azureMatchedKey = $azureAlternateRegistryKey #make a note that we found this registry key

        if ($keyExists.Length -eq 0) {
            'Could not find registry key for determining Azure SDK installation: ' + $azureAlternateRegistryKey
            'Script failed...'
            exit 1
        }
    }

    'Found Azure SDK registry key: ' + $azureMatchedKey

    #logic for determining the install path of the latest Azure installation
    #1. get all child keys of the matched key
    #2. filter only keys that start with "v" (e.g. "v2.2", "v2.3")
    #3. sort the results by the "PSChildName" property from which we removed the starting "v" (i.e. only the version number), descending so we get the latest on the first position
    #4. only keep the first object
    #5. read the value named "InstallPath" under this object
    $installPath = (Get-ChildItem -Path Registry::$azureMatchedKey | Where-Object { $_.PSChildName.StartsWith("v") } | sort @{expression={ $_.PSChildName.TrimStart("v") }} -descending | Select-Object -first 1| Get-ItemProperty -name InstallPath).InstallPath

    'Detected this Azure SDK installation path: "' + $installPath + '"'

    #set the variable with the "bin" folder
    [Environment]::SetEnvironmentVariable($azureSDKPathVariable, $installPath + 'bin\', "User")

    'Assigned the value "' + [environment]::GetEnvironmentVariable($azureSDKPathVariable,"User") + '" to environment variable "' + $azureSDKPathVariable + '"'
}
else {
    'Environment variable "' + $azureSDKPathVariable + '" is already defined and has a value of "' + [environment]::GetEnvironmentVariable($azureSDKPathVariable,"User") + '"'
}