Created
June 2, 2020 07:40
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A little toy key value store in PowerShell
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| PS C:\Users\swart\projects\powershell_scripts> .\name_value_store.ps1 | |
| PS C:\Users\swart\projects\powershell_scripts> Add-Data -Name "Foo" -Value 2 | |
| PS C:\Users\swart\projects\powershell_scripts> Add-Data -Name "Bar" -Value 8 | |
| PS C:\Users\swart\projects\powershell_scripts> Read-Data | |
| Name Value | |
| ---- ----- | |
| Foo 2 | |
| Bar 8 | |
| PS C:\Users\swart\projects\powershell_scripts> Find-Data -Name "Bar" | |
| 8 | |
| PS C:\Users\swart\projects\powershell_scripts> (Find-Data -Name "Bar") + (Find-Data -Name "Foo") | |
| 10 |
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| $global:dataFileName = "__data_store.csv" | |
| function global:Get-DataPath() { | |
| return Join-Path -Path (Get-Location) -ChildPath $global:dataFileName | |
| } | |
| function global:Read-Data() { | |
| $filePath = Get-DataPath | |
| if (-Not (Test-Path -Path $filePath)) { | |
| return $null | |
| } | |
| return Import-Csv -Path $filePath | |
| } | |
| function global:Get-Data() { | |
| $objects = Read-Data | |
| $data = @{ } | |
| if ($null -eq $objects) { | |
| return $data | |
| } | |
| $objects | ForEach-Object { $data[$_.Name] = $_.Value } | |
| return $data | |
| } | |
| function global:Set-Data([hashtable] $Data) { | |
| $filePath = Get-DataPath | |
| $objects = $Data.GetEnumerator() | ForEach-Object { [PSCustomObject]@{Name = $_.Key; Value = $_.Value } } | |
| $objects | export-csv -Path $filePath | |
| } | |
| function global:Add-Data([string] $Name, [int] $Value) { | |
| $data = Get-Data | |
| $data[$Name] = $Value | |
| Set-Data -Data $data | |
| } | |
| function global:Find-Data([string]$Name) { | |
| $data = Get-Data | |
| [int] $data[$Name] | |
| } |
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