问题
Assume that I have a Powershell script called Foo.ps1
I would like to introduce an XML configuration file called Foo.ps1.config
where I can specify my environment settings something like:
<FunctionsDirectory>
$ScriptDirectory\Functions
</FunctionsDirectory>
<ModulesDirectory>
$ScriptDirectory\Modules
</ModulesDirectory>
And then I would like to load this configuration in the begining of Foo.ps1 so that I can import my modules and dot notate to the Functions directory.
How can I achieve this in Powershell?
回答1:
Probably an easier solution.... Assuming your configuration file is names "Confix.xml", try this:
PS Testing> [xml]$configFile= get-content .\Config=.xml
PS Testing> $configFile
xml configuration
--- -------------
version="1.0" configuration
Reading data out of your new variable:
PS Testing> $configFile.configuration.appsettings
#comment add
-------- ---
Vars {add, add}
PS Testing> $configFile.configuration.appsettings.add
key value
--- -----
var1 variableValue1
var2 variableValue2
PS Testing> $configFile.configuration.appsettings.add[0].value
variableValue2
Long story short: Cast your variable as XML, and do a get-content.
In this case, the Config.xml looks like this:
<?xml version="1.0"?>
<configuration>
<startup>
</startup>
<appSettings>
<!--Vars -->
<add key="var1" value="variableValue1"/>
<add key="var2" value="variableValue2"/>
</appSettings>
</configuration>
回答2:
For an alternative to XML configuration, if you are flexible to use other type of configuration. I suggest using a global PS configuration file and here is how:
Create a Powershell configuration file ( E.g. Config.ps1 ), then put all configuration as global variable and init it as a first step so that configuration values should be available in your script context.
Benefit of this approach is that various type of data structure such as scalar variable, collections and hashes can be used in Config.ps1 PS file and referenced easily in the PS code.
the following is an example in action:
Here is the C:\Config\Config.ps1 file:
$global:config = @{
Var1 = "Value1"
varCollection = @{
item0 = "colValue0"
item1 = "colValue1"
item2 = "colValue2"
}
}
Then load the functions/variables from Config.ps1 file in this module C:\Module\PSModule.psm1, like so:
$scriptFiles = Get-ChildItem "$PSScriptRoot\Config\*.ps1" -Recurse
foreach ($script in $scriptFiles)
{
try
{
. $script.FullName
}
catch [System.Exception]
{
throw
}
}
Lastly, initialization script contains this one line below: ( C:\Init.ps1 ). Import-Module $PSScriptRoot\Module\PSModule.psm1 -Force
After running the Init.ps1. global:config variable will be available in your script context. Here is the output:
回答3:
Based on Keith's solution... Code to load XML:
$configFile = "c:\Path2Config"
if(Test-Path $configFile) {
Try {
#Load config appsettings
$global:appSettings = @{}
$config = [xml](get-content $configFile)
foreach ($addNode in $config.configuration.appsettings.add) {
if ($addNode.Value.Contains(‘,’)) {
# Array case
$value = $addNode.Value.Split(‘,’)
for ($i = 0; $i -lt $value.length; $i++) {
$value[$i] = $value[$i].Trim()
}
}
else {
# Scalar case
$value = $addNode.Value
}
$global:appSettings[$addNode.Key] = $value
}
}
Catch [system.exception]{
}
}
To populate variables from the XML values:
$variable1 = $appSettings["var1"]
$variable2 = $appSettings["var2"]
And the associated XML:
<?xml version="1.0"?>
<configuration>
<startup>
</startup>
<appSettings>
<!--Vars -->
<add key="var1" value="variableValue1"/>
<add key="var2" value="variableValue2"/>
</appSettings>
</configuration>
来源:https://stackoverflow.com/questions/13698174/how-can-i-introduce-a-config-file-to-powershell-scripts