Ignoring files in Get-ChildItem from objects being loaded from JSON - json

Question

I have a script that I am using to read a JSON file, read the paths, calculate the MD5 hash and then export them in a CSV file. The JSON file contains multiple objects. In another post, I laid out the structure of the JSON file and I'll post that here. Please note that I am not allowed to change this JSON.
{
"destinationpath": "C:\\Destination\\Mobile Phones\\"
"sourcepath": "C:\\Source\\Mobile Phones\\"
"OnePlus" : {
"files": [
{
"source": "6T",
"destination": "Model\\6T",
"log": "logfiles",
"version": "Version.txt",
}
]
}
"Samsung" : {
"files": [
{
"source": "S20",
"destination": "Galaxy\\S20",
"log": "logfiles",
"version": "Version.txt",
}
]
}
}
The destinationpath: C:\\Destination\\Mobile Phones\\, when added to, for example, Samsung it becomes: destinationpath: C:\\Destination\\Mobile Phones\\Galaxy\\S20.
The script that I have so far is this:
$JSON = Get-Content -Path file.json | ConvertFrom-Json
$JSONdestination = $JSON.destination
$JSONsource = $JSON.source
foreach ($i in $JSON.psobject.properties) {
foreach($i2 in $i.Value ){
$IgnoredFiles = #(
$logfiles = $i2.files.log
$newFiles = $i2.files.version
)
$destination = $JSON + $i2.files.destination
$source = $JSONdestination + $i2.files.source
echo $destination
Get-ChildItem -Path $destination -Recurse -Exclude $IgnoredFiles | Get-FileHash -Algorithm MD5 -ErrorAction SilentlyContinue | Export-csv -Append -Path "C:\Users\home\Downloads\hashes.csv"
}
In the Get-ChildItem portion, I want to exclude the "log" and "version" files so that they are not counted in the Get-FileHash. I have tried doing it this way as well:
Get-ChildItem -Path $destination -Recurse -Exclude $i2.files.log, $i2.files.version | Get-FileHash -Algorithm MD5 -ErrorAction SilentlyContinue | Export-csv -Append -Path "C:\Users\home\Downloads\hashes.csv"
However, it doesn't work either and the log and version files are still taken into account in the exported csv.

Answer 1

The json you show us is invalid (missing commas and commas too many..)
Once fixed into
{
"destinationpath": "C:\\Destination\\Mobile Phones\\",
"sourcepath": "C:\\Source\\Mobile Phones\\",
"OnePlus": {
"files": [{
"source": "6T",
"destination": "Model\\6T",
"log": "*.log",
"version": "Version.txt"
}]
},
"Samsung": {
"files": [{
"source": "S20",
"destination": "Galaxy\\S20",
"log": "*.log",
"version": "Version.txt"
}]
}
}
you can do this:
$JSON = Get-Content -Path file.json | ConvertFrom-Json
$JSONdestination = $JSON.destinationpath
$JSONsource = $JSON.sourcepath
$result = foreach ($item in ($JSON | Select-Object * -ExcludeProperty destinationpath, sourcepath)) {
$item.PSObject.Properties.Value | ForEach-Object {
$destPath = Join-Path -Path $JSONdestination -ChildPath $_.files.destination
$logFolder = Join-Path -Path $JSONdestination -ChildPath $_.files.log
$exclude = $_.files.version
Write-Host "Processing files in '$destPath'" -ForegroundColor Cyan
Get-ChildItem -Path $destPath -Recurse -Exclude $exclude -ErrorAction SilentlyContinue |
Where-Object {$_.FullName -notlike "$logFolder*" } |
Get-FileHash -Algorithm MD5
}
}
$result | Export-Csv -Path "C:\Users\home\Downloads\hashes.csv" -NoTypeInformation