Private/Graph.ps1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 |
function New-PSClassGraphModel { $graph = (New-Object -TypeName PSObject -Property @{ Classes = @{} }) $graph | Add-Member -MemberType ScriptMethod -Name 'DetectCyclicDependency' -Value { param ( [Parameter()] [string] $Namespace ) $this.Classes.Values | Where-Object { [string]::IsNullOrWhiteSpace($Namespace) -or $_.Namespace -ieq $Namespace } | ForEach-Object { $class = $_ # get all dependencies for the current class $dep = ($class.AllDependencies() | Where-Object { $_.Class.Namespace -ieq $class.Namespace }) # if the list contains this class, error if ($null -ne $dep) { $message = Get-PSClassCyclicErrorMessage -Links ($dep.Links + $class.Namespace) throw "Cyclic dependency found on class '$($class.Path)':`n`n- - - - - - -`n$($message)`n- - - - - - -" } } } $graph | Add-Member -MemberType ScriptMethod -Name 'GetClassOrder' -Value { $order = @() do { # get first class where all dependencies are added $class = ($this.Classes.Values | Where-Object { !$_.Added -and (($_.DependentOn.Length -eq 0) -or @($_.DependentOn | Where-Object { !$_.Added }).Length -eq 0) } | Select-Object -First 1) # add the class Write-Verbose "Adding class: $($class.Namespace)" $order += $class.Path # flag as added $class.Added = $true } while (@($this.Classes.Values | Where-Object { !$_.Added }).Length -gt 0) return $order } $graph | Add-Member -MemberType ScriptMethod -Name 'ToString' -Force -Value { param ( [Parameter()] [string] $Namespace ) $this.Classes.Values | Where-Object { [string]::IsNullOrWhiteSpace($Namespace) -or $_.Namespace -ieq $Namespace } | ForEach-Object { Write-PSClassDependencyTree -Class $_ -Level 0 Write-Host ([string]::Empty) } } return $graph } function Write-PSClassDependencyTree { param ( [Parameter(Mandatory=$true)] $Class, [Parameter(Mandatory=$true)] [int] $Level ) $prefix = "$(' ' * $Level)| ->" Write-Host "$($prefix) $($Class.Namespace)" if ($Class.DependentOn.Length -eq 0) { return } $Class.DependentOn | ForEach-Object { Write-PSClassDependencyTree -Class $_ -Level ($Level + 1) } } function New-PSClassGraph { param ( [Parameter(Mandatory=$true)] [string] $RootPath ) # append class and test path $RootPath = (Join-Path (Resolve-Path $RootPath) 'Classes') if (!(Test-Path $RootPath)) { throw "The Classes directory path does not exist: $($RootPath)" } # intialise the graph $graph = New-PSClassGraphModel # get all classes, and build graph (Get-PSClassModels -RootPath $RootPath) | ForEach-Object { $graph.Classes[$_.Name] = $_ } # regex for using $regex = '\[(?<name>\w+)\]' # now, get all class dependencies foreach ($class in $graph.Classes.Values) { # get file content $content = $class.Content() # get all classes being used $classes = @($content -imatch $regex) # if there are no dependencies, move along if ($classes.Length -eq 0) { continue } # loop through each class, adding dependencies and used by foreach ($dep in $classes) { $dep -imatch $regex | Out-Null $className = $Matches['name'] # skip if class isn't custom if (!$graph.Classes.ContainsKey($className)) { continue } # skip if it is a self reference if ($className -ieq $class.Name) { continue } # add dependency $graph.Classes[$class.Name].Link($graph.Classes[$className]) } } # return the graph return $graph } |