public void Execute()
{
var requiredActionSymbols = new Dictionary <string, WixActionSymbol>();
// Get the standard actions required based on symbols in the section.
var overridableActionSymbols = this.GetRequiredStandardActions();
// Index all the action symbols and look for collisions.
foreach (var actionSymbol in this.Section.Symbols.OfType <WixActionSymbol>())
{
if (actionSymbol.Overridable) // overridable action
{
if (overridableActionSymbols.TryGetValue(actionSymbol.Id.Id, out var collidingActionSymbol))
{
this.Messaging.Write(ErrorMessages.OverridableActionCollision(actionSymbol.SourceLineNumbers, actionSymbol.SequenceTable.ToString(), actionSymbol.Action));
if (null != collidingActionSymbol.SourceLineNumbers)
{
this.Messaging.Write(ErrorMessages.OverridableActionCollision2(collidingActionSymbol.SourceLineNumbers));
}
}
else
{
overridableActionSymbols.Add(actionSymbol.Id.Id, actionSymbol);
}
}
else // unsequenced or sequenced action.
{
// Unsequenced action (allowed for certain standard actions).
if (null == actionSymbol.Before && null == actionSymbol.After && !actionSymbol.Sequence.HasValue)
{
if (WindowsInstallerStandard.TryGetStandardAction(actionSymbol.Id.Id, out var standardAction))
{
// Populate the sequence from the standard action
actionSymbol.Sequence = standardAction.Sequence;
}
else // not a supported unscheduled action.
{
throw new InvalidOperationException("Found an action with no Sequence, Before, or After column set.");
}
}
if (requiredActionSymbols.TryGetValue(actionSymbol.Id.Id, out var collidingActionSymbol))
{
this.Messaging.Write(ErrorMessages.ActionCollision(actionSymbol.SourceLineNumbers, actionSymbol.SequenceTable.ToString(), actionSymbol.Action));
if (null != collidingActionSymbol.SourceLineNumbers)
{
this.Messaging.Write(ErrorMessages.ActionCollision2(collidingActionSymbol.SourceLineNumbers));
}
}
else
{
requiredActionSymbols.Add(actionSymbol.Id.Id, actionSymbol);
}
}
}
// Add the overridable action symbols that are not overridden to the required action symbols.
foreach (var actionSymbol in overridableActionSymbols.Values)
{
if (!requiredActionSymbols.ContainsKey(actionSymbol.Id.Id))
{
requiredActionSymbols.Add(actionSymbol.Id.Id, actionSymbol);
}
}
// Suppress the required actions that are overridable.
foreach (var suppressActionSymbol in this.Section.Symbols.OfType <WixSuppressActionSymbol>())
{
var key = suppressActionSymbol.Id.Id;
// If there is an overridable symbol to suppress; suppress it. There is no warning if there
// is no action to suppress because the action may be suppressed from a merge module in
// the binder.
if (requiredActionSymbols.TryGetValue(key, out var requiredActionSymbol))
{
if (requiredActionSymbol.Overridable)
{
this.Messaging.Write(WarningMessages.SuppressAction(suppressActionSymbol.SourceLineNumbers, suppressActionSymbol.Action, suppressActionSymbol.SequenceTable.ToString()));
if (null != requiredActionSymbol.SourceLineNumbers)
{
this.Messaging.Write(WarningMessages.SuppressAction2(requiredActionSymbol.SourceLineNumbers));
}
requiredActionSymbols.Remove(key);
}
else // suppressing a non-overridable action symbol
{
this.Messaging.Write(ErrorMessages.SuppressNonoverridableAction(suppressActionSymbol.SourceLineNumbers, suppressActionSymbol.SequenceTable.ToString(), suppressActionSymbol.Action));
if (null != requiredActionSymbol.SourceLineNumbers)
{
this.Messaging.Write(ErrorMessages.SuppressNonoverridableAction2(requiredActionSymbol.SourceLineNumbers));
}
}
}
}
// Build up dependency trees of the relatively scheduled actions.
// Use ToList() to create a copy of the required action symbols so that new symbols can
// be added while enumerating.
foreach (var actionSymbol in requiredActionSymbols.Values.ToList())
{
if (!actionSymbol.Sequence.HasValue)
{
// check for standard actions that don't have a sequence number in a merge module
if (SectionType.Module == this.Section.Type && WindowsInstallerStandard.IsStandardAction(actionSymbol.Action))
{
this.Messaging.Write(ErrorMessages.StandardActionRelativelyScheduledInModule(actionSymbol.SourceLineNumbers, actionSymbol.SequenceTable.ToString(), actionSymbol.Action));
}
this.SequenceActionSymbol(actionSymbol, requiredActionSymbols);
}
else if (SectionType.Module == this.Section.Type && 0 < actionSymbol.Sequence && !WindowsInstallerStandard.IsStandardAction(actionSymbol.Action)) // check for custom actions and dialogs that have a sequence number
{
this.Messaging.Write(ErrorMessages.CustomActionSequencedInModule(actionSymbol.SourceLineNumbers, actionSymbol.SequenceTable.ToString(), actionSymbol.Action));
}
}
// Look for standard actions with sequence restrictions that aren't necessarily scheduled based
// on the presence of a particular table.
if (requiredActionSymbols.ContainsKey("InstallExecuteSequence/DuplicateFiles") && !requiredActionSymbols.ContainsKey("InstallExecuteSequence/InstallFiles"))
{
WindowsInstallerStandard.TryGetStandardAction("InstallExecuteSequence/InstallFiles", out var standardAction);
requiredActionSymbols.Add(standardAction.Id.Id, standardAction);
}
// Schedule actions.
List <WixActionSymbol> scheduledActionSymbols;
if (SectionType.Module == this.Section.Type)
{
scheduledActionSymbols = requiredActionSymbols.Values.ToList();
}
else
{
scheduledActionSymbols = this.ScheduleActions(requiredActionSymbols);
}
// Remove all existing WixActionSymbols from the section then add the
// scheduled actions back to the section. Note: we add the indices in
// reverse order to make it easy to remove them from the list later.
var removeIndices = new List <int>();
for (var i = this.Section.Symbols.Count - 1; i >= 0; --i)
{
var symbol = this.Section.Symbols[i];
if (symbol.Definition.Type == SymbolDefinitionType.WixAction)
{
removeIndices.Add(i);
}
}
foreach (var removeIndex in removeIndices)
{
this.Section.Symbols.RemoveAt(removeIndex);
}
foreach (var action in scheduledActionSymbols)
{
this.Section.AddSymbol(action);
}
}