I have a PowerShell scripts which replaces
"version" : "xxx"
with
"version" : "myBuildNumber"
Now I encountered that I have multiple of these in my file. I only want to replace the first occurrence.
I tried already Powershell - Replace first occurrences of String but it does not work with my regex.
Here's my script:
(Get-Content myFile.txt) -replace '(?<pre>"version"[\s]*:[\s]*)(?<V>"[^\"]*")', "`$1`"$Env:BUILD_VERSION`"" | Out-File myFile.txt
Since you are patching a JSON file, regex isn't the way to go. Instead you should parse the JSON, access and change the property you want and write it back:
$filePath = 'your_Path_To_project.json'
$json = (Get-Content $filePath -raw | ConvertFrom-Json)
$json.version = $Env:BUILD_VERSION
$json | ConvertTo-Json -Depth 10 | Set-Content $filePath
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