| 1 | // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. |
| 2 | |
| 3 | namespace WixToolset.Core.WindowsInstaller.Bind |
| 4 | { |
| 5 | using System.Collections.Generic; |
| 6 | using System.Linq; |
| 7 | using WixToolset.Data; |
| 8 | using WixToolset.Data.Symbols; |
| 9 | using WixToolset.Extensibility.Data; |
| 10 | |
| 11 | internal class UpdateMediaSequencesCommand |
| 12 | { |
| 13 | public UpdateMediaSequencesCommand(IntermediateSection section, IEnumerable<IFileFacade> fileFacades) |
| 14 | { |
| 15 | this.Section = section; |
| 16 | this.FileFacades = fileFacades; |
| 17 | } |
| 18 | |
| 19 | private IntermediateSection Section { get; } |
| 20 | |
| 21 | private IEnumerable<IFileFacade> FileFacades { get; } |
| 22 | |
| 23 | public void Execute() |
| 24 | { |
| 25 | var mediaRows = this.Section.Symbols.OfType<MediaSymbol>().ToDictionary(t => t.DiskId); |
| 26 | |
| 27 | // Calculate sequence numbers and media disk id layout for all file media information objects. |
| 28 | if (SectionType.Module == this.Section.Type) |
| 29 | { |
| 30 | var lastSequence = 0; |
| 31 | |
| 32 | foreach (var facade in this.FileFacades) |
| 33 | { |
| 34 | facade.Sequence = ++lastSequence; |
| 35 | } |
| 36 | } |
| 37 | else |
| 38 | { |
| 39 | var lastSequence = 0; |
| 40 | MediaSymbol mediaSymbol = null; |
| 41 | var patchGroups = new Dictionary<int, List<IFileFacade>>(); |
| 42 | |
| 43 | // Sequence the non-patch-added files. |
| 44 | foreach (var facade in this.FileFacades) |
| 45 | { |
| 46 | if (null == mediaSymbol) |
| 47 | { |
| 48 | mediaSymbol = mediaRows[facade.DiskId]; |
| 49 | if (SectionType.Patch == this.Section.Type) |
| 50 | { |
| 51 | // patch Media cannot start at zero |
| 52 | lastSequence = mediaSymbol.LastSequence ?? 1; |
| 53 | } |
| 54 | } |
| 55 | else if (mediaSymbol.DiskId != facade.DiskId) |
| 56 | { |
| 57 | mediaSymbol.LastSequence = lastSequence; |
| 58 | mediaSymbol = mediaRows[facade.DiskId]; |
| 59 | } |
| 60 | |
| 61 | if (facade.PatchGroup.HasValue) |
| 62 | { |
| 63 | if (!patchGroups.TryGetValue(facade.PatchGroup.Value, out var patchGroup)) |
| 64 | { |
| 65 | patchGroup = new List<IFileFacade>(); |
| 66 | patchGroups.Add(facade.PatchGroup.Value, patchGroup); |
| 67 | } |
| 68 | |
| 69 | patchGroup.Add(facade); |
| 70 | } |
| 71 | else |
| 72 | { |
| 73 | facade.Sequence = ++lastSequence; |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | if (null != mediaSymbol) |
| 78 | { |
| 79 | mediaSymbol.LastSequence = lastSequence; |
| 80 | mediaSymbol = null; |
| 81 | } |
| 82 | |
| 83 | // Sequence the patch-added files. |
| 84 | foreach (var patchGroup in patchGroups.Values) |
| 85 | { |
| 86 | foreach (var facade in patchGroup) |
| 87 | { |
| 88 | if (null == mediaSymbol) |
| 89 | { |
| 90 | mediaSymbol = mediaRows[facade.DiskId]; |
| 91 | } |
| 92 | else if (mediaSymbol.DiskId != facade.DiskId) |
| 93 | { |
| 94 | mediaSymbol.LastSequence = lastSequence; |
| 95 | mediaSymbol = mediaRows[facade.DiskId]; |
| 96 | } |
| 97 | |
| 98 | facade.Sequence = ++lastSequence; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | if (null != mediaSymbol) |
| 103 | { |
| 104 | mediaSymbol.LastSequence = lastSequence; |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | } |
| 109 | } |