Assign Value To Variable After Extracting From Json File Using Powershell-CodePudding

I have the below json file

{
    "name": "ca",
    "version": "5.2.0"
}

I am extracting the value of version and trying to assign it to a variable ver

$jsonString = Get-Content -Path ./package.json
$jsonObj = $jsonString | ConvertFrom-Json

echo $jsonObj.version

Write-Host "##vso[task.setvariable variable=ver]$jsonObj.version"

echo $ver

Below is the output

5.2.0

I am expecting the value to be printed twice and also get it assigned to the variable ver but it is not getting assigned

CodePudding user response：

If you are trying to use it in builds, you will not see a new value in the same step. Additionally, use $($jsonObj.version) in the logging command:

steps:
- powershell: |
   
   $jsonString = Get-Content -Path ./package.json
   $jsonObj = $jsonString | ConvertFrom-Json
   
   $jsonObj.version
   
   Write-Host "##vso[task.setvariable variable=my.ver]$($jsonObj.version)"

  displayName: 'Set vars'

- powershell: |
   $ver = '$(my.ver)'
   
   $ver
   
  displayName: 'Read vars'