Persistent builds don't seem to work

[lzybkr]

It looks like XTask is invoked before the task is run, so Elapsed is never set when read here.

Repro:

param($stuff)

task A {
    Write-Host "task A"
}

task B A,{
    $script:stuff = "Does this persist?"
    Write-Host "task B"
    if (!(Test-Path aa.txt)) {
         exec { cmd /c exit 1 }
    }
}

task C B,{
    Write-Host "task C: $stuff"
}

task . C

Build-Checkpoint tmp.clixml -Build @{File = '.\a.build.ps1' }
"" > aa.txt
Build-Checkpoint tmp.clixml -resume

Expected - it shouldn't run task A the second time.

[nightroman]

Hi @lzybkr

Weird... I thought it was fine to invoke XTask before tasks (and there was a reason to invoke before). In this case it should be invoked before B after A, so that and A's Elapsed should be set and A should be saved as done. I'll take a closer look indeed.

[nightroman]

In this case it should be invoked before B after A...

Ah, it's wrong. Due to the dependencies, XTask for B is invoked before A. It's a bug. Thank you for catching and reporting it.

[nightroman]

Here is the story of invoking XTask before tasks -- #22
The first idea of fixing the original problem was correct.
The second (shortcut) was not.

[nightroman]

Fixed in 5.4.3