Use special character in custom VSTS PowerShell script task - powershell

Question

I am currently facing the problem that I would like to set the Copyright of my AssemblyInfo dynamically during the VSTS build to something like this:
© 2012-2018 Company Name
but the 2018 should be set dynamically representing the current year.
Therefor I tried to set a global build variable to something like this:
© 2012-$(Date:yyyy) Company Name
Here the copyright special character works fine but the date does not work at this place so the next thing I tried was to make a custom PowerShell script build task with an inline script.
I set again my global variable ("Copyright") this time to
-set during build-
and in the inline script I tried to replace the value like this:
$date=$(Get-Date -Format yyyy);
$_Copyright = "© 2012-$date Company Name";
Write-Host "##vso[task.setvariable variable=Copyright]$_Copyright";
Now I got my dynamic date working but on my shipped dlls I get
"c 2012-2018 Company Name"
with a 'c' instead of the '©'.
So I replaced it with [char]0x00A9:
$date=$(Get-Date -Format yyyy);
$_Copyright = [char]0x00A9 + " 2012-$date Company Name";
Write-Host "##vso[task.setvariable variable=Copyright]$_Copyright";
But nothing changes in the result:
"c 2012-2018 Company Name"
Although on my local machine my PowerShell gives me for [char]0x00A9 the '©' sign.
Any suggestions?

Answer 1

I can reproduce this issue.
Seems the logging command cannot recognize the symbol ©. So we cannot set the variable which including the © as the value by below command:
Write-Host "##vso[task.setvariable variable=Copyright]$_Copyright"
In your scenario you can try below workarounds:
1, Using Copyright (c) instead of Copyright ©, the logging command can recognize the string (c):
$date=$(Get-Date -Format yyyy);
$_Copyright = "(c) 2012-$date Company Name";
Write-Host "##vso[task.setvariable variable=Copyright]$_Copyright";
2, Combine variables:
1) Set a global build variable e.g.: $(Symbol) and set © as the value
2) Set a date variable using logging command :
$date=$(Get-Date -Format yyyy);
$Company= "2012-$date Company Name";
Write-Host "##vso[task.setvariable variable=Company]$Company";
3) Use the variable $(Symbol)$(Company) together to get the entire Copyright string.
Alternately you can directly use ©$(Company) to check if that works.