Add central function for creating backup

scripts/Windows/Scripts/Context.ps1

@@ -15,4 +15,21 @@ class Context {
     [string] SoftwareArchive([string]$softwareName) {
         return $this.ArchivePath($softwareName);
     }
+
+    [void] Backup([string]$sourcePath, [string]$archivePath, [string[]]$arguments) {
+        if (Test-Path $archivePath) {
+            Remove-Item -Recurse $archivePath;
+        }
+
+        Start-Process -WorkingDirectory "$sourcePath" `
+            -FilePath "7z" `
+            -ArgumentList (
+                @(
+                    "a",
+                    "-xr!desktop.ini",
+                    "-xr!{t,T}humbs.db",
+                    $archivePath) + $arguments) `
+            -Wait `
+            -NoNewWindow;
+    }
 }

scripts/Windows/Scripts/PersonalFiles.ps1

@@ -13,22 +13,6 @@ function Get-BackupCandidates() {
 
 function Invoke-FileBackup([Context] $context) {
     foreach ($candidate in Get-BackupCandidates) {
-        $archiveName = $context.FileArchivePath($candidate[0]);
+        $context.Backup($candidate[1], $context.FileArchivePath($candidate[0]), $candidate[2]);
-
-        if (Test-Path $archiveName) {
-            Remove-Item -Recurse $archiveName;
-        }
-
-        Start-Process -WorkingDirectory $candidate[1] `
-            -ArgumentList (
-                @(
-                    "a",
-                    "-xr!desktop.ini",
-                    "-xr!{t,T}humbs.db") +
-                $candidate[2] +
-                @($archiveName)) `
-            -FilePath "7z" `
-            -NoNewWindow `
-            -Wait;
     }
 }

scripts/Windows/Software/TrackMania Nations Forever/Manage.ps1

@@ -3,13 +3,5 @@ $path = "$HOME/Documents/TmForever";
 $softwareName = "TmNationsForever";
 
 function Invoke-BackupTmNations([Context] $context) {
-    Write-Host "$PSScriptRoot";
+    $context.Backup($path, $context.SoftwareArchive($softwareName), @("-i@`"$PSScriptRoot/include.txt`""));
-    Start-Process -WorkingDirectory "$path" `
-        -FilePath "7z" `
-        -ArgumentList @(
-            "a",
-            "-i@`"$PSScriptRoot/include.txt`"",
-            $context.SoftwareArchive($softwareName)) `
-        -Wait `
-        -NoNewWindow;
 }

scripts/Windows/Software/TrackMania United Forever/Manage.ps1

@@ -3,13 +3,5 @@ $path = "$HOME/Documents/TrackMania";
 $softwareName = "TmUnitedForever";
 
 function Invoke-BackupTmNations([Context] $context) {
-    Write-Host "$PSScriptRoot";
+    $context.Backup($path, $context.SoftwareArchive($softwareName), @("-i@`"$PSScriptRoot/include.txt`""));
-    Start-Process -WorkingDirectory "$path" `
-        -FilePath "7z" `
-        -ArgumentList @(
-            "a",
-            "-i@`"$PSScriptRoot/include.txt`"",
-            $context.SoftwareArchive($softwareName)) `
-        -Wait `
-        -NoNewWindow;
 }