(GH-30) Add ability to compare meta information of found binaries

Tests/Private/Get-PackageBinaryData.Tests.ps1

@@ -0,0 +1,4 @@
+#Requires -Modules chocolatey-diff
+
+Describe "Get-PackageBinaryData tests" {
+}

chocolatey-diff/Private/Get-PackageBinaryData.ps1

@@ -0,0 +1,44 @@
+function Get-PackageBinaryData {
+    <#
+    .SYNOPSIS
+        The meta information about binaries included in package
+    .DESCRIPTION
+        The meta information about binaries included in the package, including
+        the relative path, the checksum of the file, the embedded file and product
+        version as well as the embedded company name.
+    .OUTPUTS
+        An array of hashtables with the basic information about each binary file.
+    .EXAMPLE
+        PS > Get-PackageBinaryData -packageDirectory path\to\package\dir
+    #>
+    param (
+        [Parameter(Mandatory = $true)]
+        [string]$packageDirectory,
+        [ValidateSet('sha1', 'sha256', 'sha512')]
+        [string]$hashAlgorithm = 'sha256'
+    )
+
+    Push-Location $packageDirectory | Out-Null
+
+    try {
+        Write-Verbose "Finding binary files in '$packageDirectory..."
+        $binaryFiles = Get-ChildItem -Path $packageDirectory -Recurse -File | ? { Test-IsBinary -Path $_.FullName }
+
+        foreach ($file in $binaryFiles) {
+            Write-Verbose "Aquiring binary data from $($file.Name)..."
+
+            $item = Get-Item $file.FullName
+            $result = @{
+                path           = Resolve-Path $file.FullName -Relative
+                checksum       = Get-FileHash $file.FullName -Algorithm $hashAlgorithm | % Hash
+                fileVersion    = $item.VersionInfo.FileVersion
+                productVersion = $item.VersionInfo.ProductVersion
+                CompanyName    = $item.VersionInfo.CompanyName
+            }
+            $result
+        }
+    } finally {
+
+        Pop-Location | Out-Null
+    }
+}

chocolatey-diff/Public/Get-ChocolateyPackageDiff.ps1

@@ -48,29 +48,29 @@
     Get-ChocolateyPackageDiff -packageName chocolatey -oldPackageVersion 0.10.14 -newPackageVersion 0.10.15
 
 #>
-    [cmdletbinding(DefaultParameterSetName='Default')]
+    [cmdletbinding(DefaultParameterSetName = 'Default')]
     param(
-        [parameter(Mandatory = $true, Position = 0, ParameterSetName='Default')]
-        [parameter(Mandatory = $true, Position = 0, ParameterSetName='DiffTool')]
-            [string] $packageName,
-        [parameter(Mandatory = $false, Position = 1, ParameterSetName='Default')]
-        [parameter(Mandatory = $false, Position = 1, ParameterSetName='DiffTool')]
-            [string] $oldPackageVersion,
-        [parameter(Mandatory = $false, Position = 2, ParameterSetName='Default')]
-        [parameter(Mandatory = $false, Position = 2, ParameterSetName='DiffTool')]
-            [string] $newPackageVersion,
-        [parameter(Mandatory = $false, ParameterSetName='Default')]
-        [parameter(Mandatory = $false, ParameterSetName='DiffTool')]
-            [string] $downloadLocation = $(Get-TempPath),
-        [parameter(Mandatory = $false, ParameterSetName='Default')]
-        [parameter(Mandatory = $false, ParameterSetName='DiffTool')]
-            [switch] $keepFiles = $false,
-        [parameter(Mandatory = $false, 	ParameterSetName='Default')]
-            [switch] $ignoreExpectedChanges = $false,
-        [parameter(Mandatory = $false, ParameterSetName='DiffTool')]
-            [switch] $compareFolder = $false,
-        [parameter(Mandatory = $false, ParameterSetName='DiffTool')]
-            [switch] $useDiffTool = $false
+        [parameter(Mandatory = $true, Position = 0, ParameterSetName = 'Default')]
+        [parameter(Mandatory = $true, Position = 0, ParameterSetName = 'DiffTool')]
+        [string] $packageName,
+        [parameter(Mandatory = $false, Position = 1, ParameterSetName = 'Default')]
+        [parameter(Mandatory = $false, Position = 1, ParameterSetName = 'DiffTool')]
+        [string] $oldPackageVersion,
+        [parameter(Mandatory = $false, Position = 2, ParameterSetName = 'Default')]
+        [parameter(Mandatory = $false, Position = 2, ParameterSetName = 'DiffTool')]
+        [string] $newPackageVersion,
+        [parameter(Mandatory = $false, ParameterSetName = 'Default')]
+        [parameter(Mandatory = $false, ParameterSetName = 'DiffTool')]
+        [string] $downloadLocation = $(Get-TempPath),
+        [parameter(Mandatory = $false, ParameterSetName = 'Default')]
+        [parameter(Mandatory = $false, ParameterSetName = 'DiffTool')]
+        [switch] $keepFiles = $false,
+        [parameter(Mandatory = $false, ParameterSetName = 'Default')]
+        [switch] $ignoreExpectedChanges = $false,
+        [parameter(Mandatory = $false, ParameterSetName = 'DiffTool')]
+        [switch] $compareFolder = $false,
+        [parameter(Mandatory = $false, ParameterSetName = 'DiffTool')]
+        [switch] $useDiffTool = $false
     )
     $currentProgressPreference = $ProgressPreference
     $ProgressPreference = 'SilentlyContinue'
@@ -107,6 +107,19 @@
     Expand-Archive -Path $oldFileName -DestinationPath $oldExtractPath -Force
     Expand-Archive -Path $newFileName -DestinationPath $newExtractPath -Force
 
+    foreach ($path in @($oldExtractPath; $newExtractPath)) {
+        # Temporary workaround until mocking and unit tests
+        # are figured out.
+        if (!(Test-Path $path)) { continue; }
+
+        $metaDestination = Join-Path $path "binary-data.txt"
+        if (Test-Path $metaDestination) {
+            Remove-Item $metaDestination
+        }
+
+        Get-PackageBinaryData -packageDirectory $path | Out-File -Encoding utf8 -FilePath $metaDestination
+    }
+
     if ($compareFolder) {
         # We need to remove files that should not be compared
         $fullIgnoreList = $ignoreList | ForEach-Object { Join-Path $oldExtractPath $_ }