Question:
I can’t get my head around this bitwise conversion problem.
Robocopy exit codes don’t conform to the normal 0(success), 1(failure) pattern so I want to wrap my robocopy calls in the powershell script below to make my TeamCity build configurations fail or proceed appropriately when robocopy terminates.
That first part was solved using a tip from the net with: ($LastExitCode -band 24) which correctly treats exit codes 8 through 16 as failures (1) and all others as success (0).
Now I want to echo a message corresponding to the exit code. How do I convert and round/floor the integer exit code (0 – 16) to its hexadecimal equivalent (0x00 – 0x10)?
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
param( [string] $source, [string] $target, [string[]] $action = @("/MIR"), [string[]] $options = @("/R:2", "/W:1", "/FFT", "/Z", "/XA:H") ) $cmd_args = @($source, $target, $action, $options) & robocopy.exe @cmd_args $returnCodeMessage = @{ 0x00 = "[INFO]: No errors occurred, and no copying was done. The source and destination directory trees are completely synchronized." 0x01 = "[INFO]: One or more files were copied successfully (that is, new files have arrived)." 0x02 = "[INFO]: Some Extra files or directories were detected. Examine the output log for details." 0x04 = "[WARN]: Some Mismatched files or directories were detected. Examine the output log. Some housekeeping may be needed." 0x08 = "[ERROR]: Some files or directories could not be copied (copy errors occurred and the retry limit was exceeded). Check these errors further." 0x10 = "[ERROR]: Usage error or an error due to insufficient access privileges on the source or destination directories." } Write-Host $returnCodeMessage[($LastExitCode exit ($LastExitCode -band 24) |
Answer:
In your case you do not need to convert it.
You do not need conversion because Hashtable keys are converted to [int] on pre-compiation stage.
If you lookup for $returnCodeMessage.Keys , you will see decimal numbers, not hex numbers
To display all messages you should use
|
1 2 3 |
$exitcode = $LastExitCode Write-Host $( @( $returnCodeMessage.Keys | Where-Object { $_ -band $exitcode } | ForEach-Object {return $returnCodeMessage[$_]} ) -join "`r`n") |
IF you want to show Hex-encoded $LastExitCode, do
|
1 2 3 4 |
$exitcode = $LastExitCode Write-Host $('0x' + [System.Convert]::ToString([int]$exitcode,[int]16) ) return $exitcode |