Add install script (#86)

* Added initial install script

* Added new item in changelog

Author: anf

CHANGELOG.md

@@ -7,6 +7,7 @@
 * Running `winpath backup create` will now give the correct error instead of "Something went wrong!" (#56).
 * Minor bug fix when prerelease flag was not run (#72).
 * [Other/Non-bug fix change] `WinPath.Updater` now has backwards compatibility support with v0.2.0 and v0.3.0 (#78).
+* [Other/Non-bug fix change] You can now simply download `install.ps1` instead of going through a mess of manual downloading for your first installation! (#85).
 
 ## [v0.3.0](https://github.com/ANF-Studios/WinPath/releases/tag/0.3.0)
 * WinPath.Library.UserPath now targets async tasks instead of sync voids.

install.ps1

@@ -0,0 +1,112 @@
+#Requires -RunAsAdministrator
+
+using namespace System.Runtime.InteropServices;
+using namespace System.IO;
+
+if ($IsWindows -eq $false)
+{
+    [Console]::WriteLine("You must be on Windows to run this script! Press any key to continue...");
+    [Console]::ReadKey();
+    [System.Environment]::Exit(-1);
+}
+
+$Is32or64BitOperatingSystem = ([RuntimeInformation]::OSArchitecture -eq [Architecture]::X64 -or [Architecture]::X86);
+$iwr_header = @{ "User-Agent" = "WinPath_install_script" };
+$64BitOutput = "C:\Program Files\WinPath\";
+$32BitOutput = "C:\Program Files (x86)\WinPath\";
+$version = "0.3.1" # Change this every new release.
+$installed = $false;
+
+
+if ([System.Environment]::Is64BitOperatingSystem)
+{
+    if (Test-Path -Path ([Path]::Combine($64BitOutput, "WinPath.exe")))
+    {
+        [Console]::WriteLine("WinPath is already installed, run winpath update instead of this script!");
+        [Console]::ReadKey();
+        [System.Environment]::Exit(-1);
+    }
+}
+else
+{
+    if (Test-Path -Path ([Path]::Combine($32BitOutput, "WinPath.exe")))
+    {
+        [Console]::WriteLine("WinPath is already installed, run winpath update instead of this script!");
+        [Console]::ReadKey();
+        [System.Environment]::Exit(-1);
+    }
+}
+
+try
+{
+    if ($Is32or64BitOperatingSystem)
+    {
+        if ([Environment]::Is64BitOperatingSystem) # x64
+        {
+            if ([Environment]::OSVersion.Version.Major -eq 10)
+            {
+                [Directory]::CreateDirectory($64BitOutput);
+                Invoke-WebRequest -Method "GET" -Headers $iwr_header -Uri "https://github.com/ANF-Studios/WinPath/releases/download/$version/WinPath_win10-x64.exe" -OutFile $64BitOutput;
+                $installed = true;
+            }
+            else
+            {
+                [Directory]::CreateDirectory($64BitOutput);
+                Invoke-WebRequest -Method "GET" -Headers $iwr_header -Uri "https://github.com/ANF-Studios/WinPath/releases/download/$version/WinPath_win-x64.exe" -OutFile $64BitOutput;
+                $installed = true;
+            }
+        }
+        else # x86
+        {
+            [Directory]::CreateDirectory($32BitOutput);
+            Invoke-WebRequest -Method "GET" -Headers $iwr_header -Uri "https://github.com/ANF-Studios/WinPath/releases/download/$version/WinPath_win-x86.exe" -OutFile $32BitOutput;
+            $installed = true;
+        }
+    }
+    else
+    {
+        if ([Environment]::Is64BitOperatingSystem) # Arm64
+        {
+            [Directory]::CreateDirectory($64BitOutput);
+            Invoke-WebRequest -Method "GET" -Headers $iwr_header -Uri "https://github.com/ANF-Studios/WinPath/releases/download/$version/WinPath_win-arm64.exe" -OutFile $64BitOutput;
+            $installed = true;
+        }
+        else # Arm
+        {
+            [Directory]::CreateDirectory($32BitOutput);
+            Invoke-WebRequest -Method "GET" -Headers $iwr_header -Uri "https://github.com/ANF-Studios/WinPath/releases/download/$version/WinPath_win-arm.exe" -OutFile $32BitOutput;
+            $installed = true;
+        }
+    }
+
+
+}
+catch [System.Exception]
+{
+    $installed = $false;
+    [Console]::WriteLine("An error occured while installing WinPath:");
+    [Console]::WriteLine($_);
+    [Console]::ReadKey();
+}
+
+if ($installed)
+{
+    $path = [Environment]::GetEnvironmentVariable("Path", [System.EnvironmentVariableTarget]::Machine);
+    if ($path.EndsWith(";") -eq $false)
+    {
+        $path += ";";
+    }
+
+    if ([Environment]::Is64BitOperatingSystem)
+    {
+        [Environment]::SetEnvironmentVariable("Path", ("$path" + $64BitOutput), [System.EnvironmentVariableTarget]::Machine);
+    }
+    else
+    {
+        [Environment]::SetEnvironmentVariable("Path", ("$path" + $32BitOutput), [System.EnvironmentVariableTarget]::Machine);
+    }
+    
+    [Console]::WriteLine("Congrats! WinPath is installed successfully! To ensure WinPath does work, restart your computer (optional).");
+    [Console]::ReadKey();
+    [Environment]::Exit(0);
+}