PackagesToRemove(
Array <PackageDefinition> toRemove,
Array <PackageDefinition> packageDefinitions,
PackageDefinition masterDefinitionFile)
{
var additionalToRemove = new Array <PackageDefinition>();
foreach (var r in toRemove)
{
foreach (var p in packageDefinitions)
{
if (!p.Parents.Any())
{
// immediately ignore any packages that have no parents
// as these are scheduled to be deleted
// avoids a possible infinite recursion into PackagesToRemove
continue;
}
if (p.Parents.Contains(r))
{
p.Parents.Remove(r);
}
if (0 == p.Parents.Count() && p != masterDefinitionFile && !toRemove.Contains(p))
{
additionalToRemove.AddUnique(p);
}
}
}
if (additionalToRemove.Count() > 0)
{
// recurse
additionalToRemove.AddRangeUnique(PackagesToRemove(additionalToRemove, packageDefinitions, masterDefinitionFile));
}
return(additionalToRemove);
}
PackagesToRemove(
Array <PackageDefinition> toRemove,
Array <PackageDefinition> packageDefinitions,
PackageDefinition masterDefinitionFile)
{
var additionalToRemove = new Array <PackageDefinition>();
foreach (var r in toRemove)
{
foreach (var p in packageDefinitions)
{
if (p.Parents.Contains(r))
{
p.Parents.Remove(r);
}
if (0 == p.Parents.Count() && p != masterDefinitionFile && !toRemove.Contains(p))
{
additionalToRemove.AddUnique(p);
}
}
}
if (additionalToRemove.Count() > 0)
{
// recurse
additionalToRemove.AddRangeUnique(PackagesToRemove(additionalToRemove, packageDefinitions, masterDefinitionFile));
}
return(additionalToRemove);
}
FindPackagesToRemove(
Array <PackageDefinition> initialToRemove,
Array <PackageDefinition> packageDefinitions,
PackageDefinition masterDefinitionFile)
{
var totalToRemove = new Array <PackageDefinition>(initialToRemove);
var queuedForRemoval = new System.Collections.Generic.Queue <PackageDefinition>(initialToRemove);
while (queuedForRemoval.Count > 0)
{
var current = queuedForRemoval.Dequeue();
totalToRemove.AddUnique(current);
Log.DebugMessage("Examining: {0}", current.ToString());
foreach (var package in packageDefinitions)
{
if (package.Parents.Contains(current))
{
Log.DebugMessage("Package {0} parents include {1}, so removing reference", package.ToString(), current.ToString());
package.Parents.Remove(current);
}
if (!package.Parents.Any() && package != masterDefinitionFile && !totalToRemove.Contains(package) && !queuedForRemoval.Contains(package))
{
Log.DebugMessage("*** Package {0} enqueued for removal since no-one refers to it", package.ToString());
queuedForRemoval.Enqueue(package);
}
}
}
return(totalToRemove);
}