Appending file name and last write time as columns in a CSV - powershell

Question

I have bunch of text files that I am converting to a CSV.
For example I have a few hundred txt files that look like this
Serial Number : 123456
Measurement : 5
Test Data : 125
And each file is being converted to a single row on the CSV. I can't figured out how to add an additional column for the file name and the last write time.
This is what I currently have that copies all of the data from txt to CSV
$files = "path"
function Get-Data {
param (
[Parameter (Mandatory, ValueFromPipeline, Position=0)] $filename
)
$data=#{}
$lines=Get-Content -LiteralPath $filename | Where-Object {$_ -notlike '*---*'}
foreach ($line in $lines) {
$splitLine=$line.split(":")
$data.Add($splitLine[0],$splitLine[1])
}
return [PSCustomObject]$data
}
$files | Foreach-Object -Process {Get-Data $_} | Export-Csv -Path C:\Scripts\data.csv -NoTypeInformation -Force
I've tried doing this but it doesn't add anything. I might be trying to add the data the wrong way.
$files = "path"
function Get-Data {
param (
[Parameter (Mandatory, ValueFromPipeline, Position=0)] $filename
)
$data=#{}
$name = Get-ChildItem -literalpath $filename | Select Name
$data.Add("Filename", $name)
$lines=Get-Content -LiteralPath $filename | Where-Object {$_ -notlike '*---*'}
foreach ($line in $lines) {
$splitLine=$line.split(":")
$data.Add($splitLine[0],$splitLine[1])
}
return [PSCustomObject]$data
}
$files | Foreach-Object -Process {Get-Data $_} | Export-Csv -Path E:\Scripts\Pico2.csv -NoTypeInformation -Force

Answer 1

Here's a streamlined version of your code that should work as intended:
function Get-Data {
param (
[Parameter (Mandatory, ValueFromPipeline)]
[System.IO.FileInfo] $file # Accept direct output from Get-ChildItem
)
process { # Process each pipeline input object
# Initialize an ordered hashtable with
# the input file's name and its last write time.
$data = [ordered] #{
FileName = $file.Name
LastWriteTime = $file.LastWriteTime
}
# Read the file and parse its lines
# into property name-value pairs to add to the hashtable.
$lines = (Get-Content -ReadCount 0 -LiteralPath $file.FullName) -notlike '*---*'
foreach ($line in $lines) {
$name, $value = ($line -split ':', 2).Trim()
$data.Add($name, $value)
}
# Convert the hashtable to a [pscustomobject] instance
# and output it.
[PSCustomObject] $data
}
}
# Determine the input files via Get-ChildItem and
# pipe them directly to Get-Data, which in turn pipes to Export-Csv.
Get-ChildItem "path" |
Get-Data |
Export-Csv -Path C:\Scripts\data.csv -NoTypeInformation -Force