Powershell 2.0 - Running scripts for the command line call vs. from the ISE
- by Gromix
Hi,
After writing deployment scripts from within the ISE, we need our CI server to be able to run them automatically, i.e. from the command line or via a batch file.
I have notice some significant differences between the following calls:
powershell.exe -File Script.ps1
powershell.exe -Command "& '.\Script.ps1'"
powershell.exe .\Script.ps1
Some simple examples:
When using -File, errors are handled in the exact same way as the ISE.
The other two calls seem to ignore the $ErrorActionPreference variable, and do not catch Write-Error in try/catch blocks.
When using pSake:
The last 2 calls work perfectly
Using the ISE or the -File parameter will fail with the following error:
The variable '$script:context' cannot be retrieved because it has not been set
Could someone help me understand the implications of each syntax, and why they are behaving differently? I would ideally like to find a syntax that works all the time and behaves like the ISE.
Thanks,
Romain
