#174 fix: detect parent git repositories for nova bump

CHANGELOG.md

@@ -18,6 +18,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Fixed `nova bump` and `Update-NovaModuleVersion` so nested project folders now reuse parent Git repository history for bump inference instead of silently falling back to `Patch`.
+
 ### Security
 
 ## [2.3.0] - 2026-05-06

src/private/release/GetGitCommitMessagesForVersionBump.ps1

@@ -4,7 +4,7 @@ function Get-GitCommitMessageForVersionBump {
         [Parameter(Mandatory)][string]$ProjectRoot
     )
 
-    if (-not (Test-Path -LiteralPath (Join-Path $ProjectRoot '.git'))) {
+    if (-not (Test-GitRepositoryIsAvailable -ProjectRoot $ProjectRoot)) {
         return @()
     }
 

src/private/release/GetNovaVersionLabelForBump.ps1

@@ -35,10 +35,6 @@ function Test-GitRepositoryIsAvailable {
         [Parameter(Mandatory)][string]$ProjectRoot
     )
 
-    if (-not (Test-Path -LiteralPath (Join-Path $ProjectRoot '.git'))) {
-        return $false
-    }
-
     $result = Invoke-NovaGitCommand -ProjectRoot $ProjectRoot -Arguments @('rev-parse', '--git-dir')
     return $result.ExitCode -eq 0
 }

tests/CoverageGaps.ReleaseInternals.Tests.ps1

@@ -620,6 +620,28 @@ Describe 'Coverage gaps for release and git internals' {
         }
     }
 
+    It 'Get-GitCommitMessageForVersionBump resolves parent git repositories for nested project paths' {
+        if (-not (Get-Command git -ErrorAction SilentlyContinue)) {
+            Set-ItResult -Skipped -Because 'git is not available in this environment'
+            return
+        }
+
+        InModuleScope $script:moduleName {
+            $repositoryRoot = Join-Path $TestDrive 'parent-git-repo'
+            $projectRoot = Join-Path $repositoryRoot 'NestedProject'
+            Initialize-TestGitRepository -Path $repositoryRoot
+            New-Item -ItemType Directory -Path $projectRoot -Force | Out-Null
+            New-TestGitCommit -RepositoryPath $repositoryRoot -Message 'feat!: nested project change' -File @{
+                Name = 'NestedProject/feature.txt'
+                Content = 'feature'
+            }
+
+            $messages = @(Get-GitCommitMessageForVersionBump -ProjectRoot $projectRoot)
+
+            $messages | Should -Be @('feat!: nested project change')
+        }
+    }
+
     It 'Get-NovaVersionLabelForBump falls back to Patch when the project is not a git repository' {
         InModuleScope $script:moduleName {
             $projectRoot = Join-Path $TestDrive 'no-git-project-for-label'

tests/NovaCommandModel.StandaloneCli.Tests.ps1

@@ -338,6 +338,46 @@ Describe '$projectName tests' {
         }
     }
 
+    It 'Install-NovaCli infers a major bump from parent Git repository history for nested project roots' {
+        $targetDirectory = Join-Path $TestDrive 'parent-git-bump-bin'
+        $installedPath = Join-Path $targetDirectory 'nova'
+        $repositoryRoot = Join-Path $TestDrive 'CliParentGitRepo'
+        $projectRoot = Join-Path $repositoryRoot 'AzureDevOpsAgentInstaller'
+        $projectJsonPath = Join-Path $projectRoot 'project.json'
+        $originalModulePath = $env:PSModulePath
+        $modulePathSeparator = [string][System.IO.Path]::PathSeparator
+        $distParent = Split-Path -Parent $script:distModuleDir
+
+        $env:PSModulePath = "$distParent$modulePathSeparator$originalModulePath"
+
+        New-Item -ItemType Directory -Path $repositoryRoot -Force | Out-Null
+        Initialize-TestNovaCliProjectLayout -ProjectRoot $projectRoot
+        Write-TestNovaCliProjectJson -ProjectRoot $projectRoot -ProjectName 'AzureDevOpsAgentInstaller' -ProjectGuid '77777777-7777-7777-7777-777777777777'
+        Write-TestNovaCliPublicFunction -ProjectRoot $projectRoot -FunctionName 'Invoke-TestNestedParentGitBump'
+
+        $projectData = Get-Content -LiteralPath $projectJsonPath -Raw | ConvertFrom-Json
+        $projectData.Version = '1.5.4-preview'
+        $projectData | ConvertTo-Json -Depth 20 | Set-Content -LiteralPath $projectJsonPath -Encoding utf8
+
+        try {
+            Initialize-TestNovaCliGitRepository -ProjectRoot $repositoryRoot -CommitMessage 'feat!: add nested parent repo bump coverage'
+
+            Install-NovaCli -DestinationDirectory $targetDirectory -Force | Out-Null
+
+            $result = Invoke-TestInstalledNovaCommand -InstalledPath $installedPath -WorkingDirectory $projectRoot -Arguments @('bump', '--what-if')
+            $versionAfterBump = (Get-Content -LiteralPath $projectJsonPath -Raw | ConvertFrom-Json).Version
+
+            $result.ExitCode | Should -Be 0
+            $result.Text | Should -Match 'What if:'
+            $result.Text | Should -Match 'Version plan: 1\.5\.4-preview -> 2\.0\.0 \| Label: Major \| Commits: 1'
+            $result.Text | Should -Not -Match 'Version plan: 1\.5\.4-preview -> 1\.5\.4 \| Label: Patch \| Commits: 0'
+            $versionAfterBump | Should -Be '1.5.4-preview'
+        }
+        finally {
+            $env:PSModulePath = $originalModulePath
+        }
+    }
+
     It 'Install-NovaCli rejects unsupported nova init invocations with clear migration guidance' -ForEach @(
         @{
             Name = 'WhatIf'