172 lines
4.5 KiB
PowerShell
172 lines
4.5 KiB
PowerShell
using namespace System.Collections.Generic;
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. "$PSScriptRoot/../../Common/Scripts/System.ps1";
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$null = New-Module {
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$pathResolver = {
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param(
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[string] $User,
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[string] $Path
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)
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[string] $result = $null;
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if ($User) {
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$result = "Users/$User";
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} else {
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$result = "System";
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}
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if (-not $Path) {
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$Path = "Files";
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}
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$result = Join-Path $result $Path;
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return $result;
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};
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<#
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.SYNOPSIS
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Gets the name of the variable holding the path to the backup archive of the current machine.
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#>
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function Get-ArchiveVariableName {
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return "BACKUP_ARCHIVE";
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}
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<#
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.SYNOPSIS
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Gets the path to the backup archive of the current machine.
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#>
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function Get-ValhallaBackupArchive {
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(Get-Item "Env:\$(Get-ArchiveVariableName)").Value;
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}
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<#
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.SYNOPSIS
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Sets the path to the backup archive of the current machine.
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.PARAMETER Path
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The path to set.
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#>
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function Set-ValhallaBackupArchive {
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param(
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[string] $Path
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)
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Set-Item "Env:\$(Get-ArchiveVariableName)" $Path;
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}
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<#
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.SYNOPSIS
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Adds files to the backup archive.
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.PARAMETER User
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The user to add the files to.
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.PARAMETER Source
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The file or directory to add to the backup archive.
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.PARAMETER Path
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The path to the location to store the file or directory at.
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.PARAMETER ArgumentList
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The arguments to pass to the `7z` command.
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#>
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function Add-BackupArtifacts {
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param(
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[string] $User,
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[string] $Source,
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[string] $Path,
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[string[]] $Include,
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[string[]] $Exclude
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)
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if ($env:BACKUP_ARCHIVE) {
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[List[string]] $argumentList = @();
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$dir = New-TemporaryDirectory;
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$targetPath = & $pathResolver @PSBoundParameters;
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$fullPath = Join-Path $dir $targetPath;
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$null = New-Item -ItemType Directory -Force (Split-Path -Parent $fullPath);
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if (Test-Path -PathType Container $Source) {
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$null = New-Item -ItemType Junction $fullPath -Target $Source;
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} elseif (Test-Path -PathType Leaf $Source) {
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Copy-Item $Source $fullPath;
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}
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$options = @(
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@("i", $Include),
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@("x", $Exclude)
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);
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foreach ($option in $options) {
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$indicator = $option[0];
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$list = $option[1];
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foreach ($pattern in $list) {
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$argumentList.Add("-$indicator!`"$(Join-Path $targetPath $pattern)`"");
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}
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}
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Start-Process `
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-NoNewWindow `
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-Wait `
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-WorkingDirectory $dir `
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-FilePath 7z `
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-ArgumentList (
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@(
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"a",
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(Get-ValhallaBackupArchive),
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"-xr!desktop.ini",
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"-xr!thumbs.db",
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"-xr!Thumbs.db"
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) + $argumentList);
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Remove-Item -Recurse -Force $dir;
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}
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}
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<#
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.SYNOPSIS
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Extracts the specified backup artifacts to the specified target path.
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.PARAMETER User
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The user to restore the files for.
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.PARAMETER Path
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The path to restore the files from.
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.PARAMETER Target
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The path to restore the files to.
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.PARAMETER ArgumentList
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The arguments to pass to `7z`.
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#>
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function Expand-BackupArtifacts {
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param(
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[string] $User,
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[string] $Path,
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[string] $Target,
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[Parameter(ValueFromRemainingArguments)]
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[string[]] $ArgumentList
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)
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if ($env:BACKUP_ARCHIVE) {
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$dir = New-TemporaryDirectory;
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$sourcePath = & $pathResolver @PSBoundParameters;
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$filePath = Join-Path $dir $sourcePath;
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7z x "-o$dir" (Get-ValhallaBackupArchive) $sourcePath @ArgumentList;
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if (Test-Path $filePath) {
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if (Test-Path -PathType Container $filePath) {
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$null = New-Item -ItemType Directory $Target -Force;
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$filePath = "$filePath/*";
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}
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Copy-Item -Recurse $filePath $Target -Force;
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}
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Remove-Item -Recurse -Force $dir;
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}
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}
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};
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