I want to update below property file contents using powershell and replace ${BuildPath} with location = D:\Data\Sample\lib
tibco.alias.junit.jar=${BuildPath}\\junit.jar
tibco.alias.TextDiff.jar=${BuildPath}\\TextDiff.jar
tibco.alias.XMLDiff.jar=${BuildPath}\\XMLDiff.jar
Could some one please help me logic on powershell to update this property file.
Thanks
So you have a file with those properties in it yes? Who's to say how it was created or if that is the only contents? Lets just assume you have a file with lots of properties other than that just in case. You want to navigate the file replacing all occurrences* of ${BuildPath} with D:\Data\Sample\lib
$replacePath = "D:\Data\Sample\lib"
$newFile = Get-Content c:\temp\file.ini | ForEach-Object{
$_ -replace '\${BuildPath}',($replacePath -replace '\\',"\\")
}
$newFile | Set-Content c:\temp\file.ini
This would give the following output in c:\temp\file.ini
tibco.alias.junit.jar=D:\\Data\\Sample\\lib\\junit.jar
tibco.alias.TextDiff.jar=D:\\Data\\Sample\\lib\\TextDiff.jar
tibco.alias.XMLDiff.jar=D:\\Data\\Sample\\lib\\XMLDiff.jar
* regex will only replace the first occurrence on each line. Doubt there would be more than one anyway.
If you are rewriting the entire file and you don't need to keep the comments you can use the load syntax here, https://stackoverflow.com/a/20276315/3794873 and then the write syntax here, https://stackoverflow.com/a/35210799/3794873 but mind the notes about losing ordering.
If you need to keep the original order, see the other answer using -replace, or create an OrderedDict in PowerShell and populate it via a loop over the lines in the file (see example in code below).
I've condensed the linked question and answer above in the example below.
$filename = 'myfile.properties'
$filedata = @'
app.name=Test App
app.version=1.2
app.data=Some words
'@
$filedata | set-content $filename
# This method doesn't maintain ordering
$fileProps = convertfrom-stringdata (Get-Content $filename | Out-String)
#could use also use -raw in PS 3 or higher instead of | Out-String
Write-Output "Initial data"
$fileProps.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Write-Output
$fileProps['app.name'] = 'StringData App'
Write-Output "Updated data"
$fileProps.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Write-Output
$fileProps.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Out-File .\myfile.stringdata.properties -Encoding "ASCII"
# This method uses an ordered dict to maintain... order
$dict = [ordered]@{}
Get-Content $filename | foreach-object {$dict.add($_.split('=',2)[0],$_.split('=',2)[1])}
Write-Output "Initial data"
$dict.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Write-Output
$dict['app.name'] = 'Ordered Dict App'
Write-Output "Updated data"
$dict.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Write-Output
$dict.GetEnumerator() | % { "$($_.Name)=$($_.Value)" } | Out-File .\myfile.ordered.properties -Encoding "ASCII"
