Align runtime disclaimer with project README

package/Invoke-ExchangeMailboxMigration.ps1

@@ -1,4 +1,5 @@
 #Requires -Version 5.1
+
 <#
 .SYNOPSIS
     Exchange Mailbox Migration - moves Exchange Server mailboxes from source databases to target
@@ -114,6 +115,14 @@
                  (batches kept on purpose are listed but do not change the code), 3 = cancelled at the
                  confirmation question (nothing changed).
     Documentation : docs\ExchangeMailboxMigration-Guide.md (or .html)
+
+    Disclaimer:
+    This Script is a Personal project.
+    It's provided "AS-IS". It's not an official Microsoft product so no support can be expected from Microsoft.
+
+    As any scripts you must read carefully the documentation and test it first in a Test environment before any run in Production.
+
+    Mailbox moves change production data: run the inventory, review the plan, simulate with `-WhatIf` and test in a lab before production use.
 #>
 [CmdletBinding(SupportsShouldProcess)]
 param(

package/README.md

@@ -51,3 +51,12 @@ notepad .\config\ExchangeMailboxMigration.config.psd1      # Databases: source a
 Project page, releases and change log: https://github.com/Nico77600/ExchangeMailboxMigration
 
 License: [MIT](LICENSE).
+
+## Disclaimer
+
+This Script is a Personal project.
+It's provided "AS-IS". It's not an official Microsoft product so no support can be expected from Microsoft.
+
+As any scripts you must read carefully the documentation and test it first in a Test environment before any run in Production.
+
+Mailbox moves change production data: run the inventory, review the plan, simulate with `-WhatIf` and test in a lab before production use.

tests/ExchangeMailboxMigration.Tests.ps1

@@ -56,6 +56,42 @@ AfterAll {
     if ($script:Temp -and (Test-Path -LiteralPath $script:Temp)) { Remove-Item -LiteralPath $script:Temp -Recurse -Force }
 }
 
+Describe 'Runtime disclaimer' {
+    BeforeAll {
+        $script:DisclaimerRepo = Split-Path $PSScriptRoot -Parent
+        $script:DisclaimerConfig = Get-Content (Join-Path $script:DisclaimerRepo '.github\ci.json') -Raw | ConvertFrom-Json
+        $script:DisclaimerRuntime = Join-Path $script:DisclaimerRepo $script:DisclaimerConfig.runtimeRoot
+        $script:DisclaimerPattern = '(?ms)^## Disclaimer[ \t]*\r?\n(?<Body>.*?)(?=^##[ \t]|\z)'
+        $rootReadme = [IO.File]::ReadAllText((Join-Path $script:DisclaimerRepo 'README.md'))
+        $matches = [regex]::Matches($rootReadme, $script:DisclaimerPattern)
+        if ($matches.Count -ne 1) { throw 'The root README must contain exactly one canonical disclaimer.' }
+        $script:CanonicalDisclaimer = $matches[0].Groups['Body'].Value.Trim().Replace("`r`n", "`n")
+        function ConvertTo-DisclaimerParagraphs([string]$Text) {
+            (($Text.Trim() -split '\r?\n[ \t]*\r?\n') | ForEach-Object { ($_ -replace '\s+', ' ').Trim() }) -join "`n`n"
+        }
+    }
+
+    It 'keeps the runtime README disclaimer identical to the canonical root section' {
+        $readme = [IO.File]::ReadAllText((Join-Path $script:DisclaimerRuntime 'README.md'))
+        $matches = [regex]::Matches($readme, $script:DisclaimerPattern)
+        $matches.Count | Should -Be 1
+        $matches[0].Groups['Body'].Value.Trim().Replace("`r`n", "`n") | Should -BeExactly $script:CanonicalDisclaimer
+    }
+
+    It 'keeps the public entry script disclaimer attached to its help with the same wording and paragraphs' {
+        $path = Join-Path $script:DisclaimerRuntime $script:DisclaimerConfig.packageEntry
+        $errors = $null
+        $ast = [Management.Automation.Language.Parser]::ParseFile($path, [ref]$null, [ref]$errors)
+        @($errors).Count | Should -Be 0
+        $help = $ast.GetHelpContent()
+        $help | Should -Not -BeNullOrEmpty
+        $notes = $help.Notes
+        [regex]::Matches($notes, '(?m)^[ \t]*Disclaimer:[ \t]*$').Count | Should -Be 1
+        $body = [regex]::Match($notes, '(?s)(?:^|\r?\n)[ \t]*Disclaimer:[ \t]*\r?\n(?<Body>.*)\z').Groups['Body'].Value
+        (ConvertTo-DisclaimerParagraphs $body) | Should -BeExactly (ConvertTo-DisclaimerParagraphs $script:CanonicalDisclaimer)
+    }
+}
+
 Describe 'Configuration' {
     It 'accepts the delivered configuration file' {
         $s = Import-EmmConfiguration -Path (Join-Path $script:Root 'config\ExchangeMailboxMigration.config.psd1') -Root $script:Root