public static IEnumerable <InstallItemDiff> GetDiffs(IEnumerable <InstallItem> left, IEnumerable <InstallItem> right)
{
var leftList = left.Where(i => i.Type != InstallType.Warning).ToArray();
var rightList = right.Where(i => i.Type != InstallType.Warning).ToArray();
var compares = ListCompare.Create(leftList, rightList, i => i.Reference);
var results = new List <InstallItemDiff>();
foreach (var compare in compares)
{
if (compare.Base < 0)
{
results.Add(new InstallItemDiff()
{
_itemRef = rightList[compare.Compare].Reference,
_type = rightList[compare.Compare].Type,
DiffType = DiffType.RightOnly,
RightScript = rightList[compare.Compare].Script
});
}
else if (compare.Compare < 0)
{
results.Add(new InstallItemDiff()
{
_itemRef = leftList[compare.Base].Reference,
_type = leftList[compare.Base].Type,
DiffType = DiffType.LeftOnly,
LeftScript = leftList[compare.Base].Script
});
}
else
{
results.Add(new InstallItemDiff()
{
_itemRef = leftList[compare.Base].Reference,
_type = leftList[compare.Base].Type,
DiffType = (AmlDiff.IsDifferent(new XmlNodeReader(leftList[compare.Base].Script), new XmlNodeReader(rightList[compare.Compare].Script)) ?
DiffType.Different : DiffType.Identical),
LeftScript = leftList[compare.Base].Script,
RightScript = rightList[compare.Compare].Script
});
}
}
return(results);
}
public static PackageMetadataProvider WriteAmlMergeScripts(this IDiffDirectory baseDir, IDiffDirectory compareDir
, Func <string, int, XmlWriter> callback = null)
{
Func <IDiffFile, IComparable> keyGetter = i => i.Path.Replace('\\', '/').TrimStart('/');
var basePaths = baseDir.GetFiles().OrderBy(keyGetter).ToArray();
var comparePaths = compareDir.GetFiles().OrderBy(keyGetter).ToArray();
var completed = 0;
var total = basePaths.Length + comparePaths.Length;
var result = new List <FileDiff>();
var metadata = new PackageMetadataProvider();
basePaths.MergeSorted(comparePaths, keyGetter, (i, b, c) =>
{
try
{
var path = (c ?? b).Path;
if (path.EndsWith(".xslt.xml") || path.EndsWith(".innpkg"))
{
return;
}
completed++;
switch (i)
{
case -1: // Delete
using (var baseStream = ReadFile(b, p => Array.Find(basePaths, f => f.Path == p)))
using (var writer = callback(path, completed * 100 / total))
{
var elem = AmlDiff.GetMergeScript(baseStream, null);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
case 1: // Add
using (var baseStream = ReadFile(c, p => Array.Find(comparePaths, f => f.Path == p)))
{
var elem = XElement.Load(baseStream);
IdentityMergeToAdd(elem);
if (ItemAddToIgnore(elem))
{
return;
}
using (var writer = callback(path, completed * 100 / total))
{
elem.WriteTo(writer);
metadata.Add(elem);
}
}
break;
default: // Edit
total--;
using (var baseStream = ReadFile(b, p => Array.Find(basePaths, f => f.Path == p)))
using (var compareStream = ReadFile(c, p => Array.Find(comparePaths, f => f.Path == p)))
using (var writer = callback(path, completed * 100 / total))
{
var baseElem = Utils.LoadXml(baseStream);
var compareElem = Utils.LoadXml(compareStream);
metadata.Add(compareElem);
var elem = AmlDiff.GetMergeScript(baseElem, compareElem);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
}
}
catch (XmlException ex)
{
ex.Data["Index"] = i;
if (b != null)
{
ex.Data["BasePath"] = b.Path;
}
if (c != null)
{
ex.Data["ComparePath"] = c.Path;
}
throw;
}
});
return(metadata);
}
public static PackageMetadataProvider WriteAmlMergeScripts(this IDiffDirectory baseDir, IDiffDirectory compareDir
, Func <string, int, XmlWriter> callback = null)
{
Func <IDiffFile, IComparable> keyGetter = i => i.Path;
var basePaths = baseDir.GetFiles().OrderBy(keyGetter).ToArray();
var comparePaths = compareDir.GetFiles().OrderBy(keyGetter).ToArray();
var completed = 0;
var total = basePaths.Length + comparePaths.Length;
var result = new List <FileDiff>();
var metadata = new PackageMetadataProvider();
basePaths.MergeSorted(comparePaths, keyGetter, (i, b, c) =>
{
try
{
var path = (c ?? b).Path;
if (path.EndsWith(".xslt.xml") || path.EndsWith(".innpkg"))
{
return;
}
completed++;
switch (i)
{
case -1: // Delete
using (var baseStream = ReadFile(b, p => Array.Find(basePaths, f => f.Path == p)))
using (var writer = callback(path, completed * 100 / total))
{
var elem = AmlDiff.GetMergeScript(baseStream, null);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
case 1: // Add
using (var baseStream = c.OpenRead())
using (var writer = callback(path, completed * 100 / total))
{
var elem = XElement.Load(baseStream);
elem.WriteTo(writer);
metadata.Add(elem);
}
break;
default: // Edit
total--;
using (var baseStream = ReadFile(b, p => Array.Find(basePaths, f => f.Path == p)))
using (var compareStream = ReadFile(c, p => Array.Find(comparePaths, f => f.Path == p)))
using (var writer = callback(path, completed * 100 / total))
{
var baseElem = Utils.LoadXml(baseStream);
var compareElem = Utils.LoadXml(compareStream);
metadata.Add(compareElem);
var elem = AmlDiff.GetMergeScript(baseElem, compareElem);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
}
}
catch (XmlException ex)
{
throw new XmlException(string.Format("{0} ({1}, {2}, {3})", ex.Message, i, b.Path, c.Path), ex);
}
});
return(metadata);
}
/// <summary>
/// Writes the difference between two directories
/// </summary>
/// <param name="baseDir">The base directory which needs to be transformed</param>
/// <param name="compareDir">The comparison directory which is what the base directoy should look like after transformation</param>
/// <param name="callback">Gets an XML writer to write the merge script given the path and current progress (integer between 0 and 100)</param>
/// <returns>Metadata regarding the target state</returns>
public static PackageMetadataProvider WriteAmlMergeScripts(this IPackage baseDir, IPackage compareDir
, Func <string, int, XmlWriter> callback)
{
Func <IPackageFile, IComparable> keyGetter = i => i.Path.ToUpperInvariant().Replace('\\', '/').TrimStart('/');
var basePaths = baseDir.Files().OrderBy(keyGetter).ToList();
var comparePaths = compareDir.Files().OrderBy(keyGetter).ToList();
var completed = 0;
var total = basePaths.Count + comparePaths.Count;
var metadata = new PackageMetadataProvider();
var baseScripts = new List <AmlScript>();
var compareScripts = new List <AmlScript>();
Action <MergeType, AmlScript, AmlScript> mergeScripts = (type, baseScript, compareScript) =>
{
switch (type)
{
case MergeType.StartOnly: // Delete
completed++;
using (var writer = callback(baseScript.Path, completed * 100 / total))
{
var elem = AmlDiff.GetMergeScript(baseScript.Script, null);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
case MergeType.DestinationOnly: // Add
completed++;
using (var writer = callback(compareScript.Path, completed * 100 / total))
{
compareScript.Script.WriteTo(writer);
metadata.Add(compareScript.Script);
}
break;
default:
total--;
completed++;
var path = compareScript.Path;
if (!string.Equals(baseScript.Path, compareScript.Path, StringComparison.OrdinalIgnoreCase) &&
!string.IsNullOrEmpty(compareScript.Id) &&
baseScript.Path.IndexOf(compareScript.Id) >= 0)
{
path = baseScript.Path;
}
using (var writer = callback(path, completed * 100 / total))
{
metadata.Add(compareScript.Script);
var elem = AmlDiff.GetMergeScript(baseScript.Script, compareScript.Script);
if (elem.Elements().Any())
{
elem.WriteTo(writer);
}
}
break;
}
};
basePaths.MergeSorted(comparePaths, keyGetter, (type, baseFile, compareFile) =>
{
try
{
var path = (compareFile ?? baseFile).Path;
if (path.EndsWith(".xslt.xml", StringComparison.OrdinalIgnoreCase) ||
path.EndsWith(".innpkg", StringComparison.OrdinalIgnoreCase))
{
return;
}
switch (type)
{
case MergeType.StartOnly: // Delete
var baseScript = new AmlScript(baseFile, baseDir);
if (baseScript.Key == null)
{
mergeScripts(type, baseScript, null);
}
else
{
baseScripts.Add(baseScript);
}
break;
case MergeType.DestinationOnly: // Add
var compareScript = new AmlScript(compareFile, compareDir);
IdentityMergeToAdd(compareScript.Script);
if (ItemAddToIgnore(compareScript.Script))
{
return;
}
if (compareScript.Key == null)
{
mergeScripts(type, null, compareScript);
}
else
{
compareScripts.Add(compareScript);
}
break;
default: // Edit
baseScript = new AmlScript(baseFile, baseDir);
compareScript = new AmlScript(compareFile, compareDir);
if (baseScript.Key == compareScript.Key)
{
mergeScripts(type, baseScript, compareScript);
}
else
{
baseScripts.Add(baseScript);
compareScripts.Add(compareScript);
}
break;
}
}
catch (XmlException ex)
{
ex.Data["MergeType"] = type.ToString();
if (baseFile != null)
{
ex.Data["BasePath"] = baseFile.Path;
}
if (compareFile != null)
{
ex.Data["ComparePath"] = compareFile.Path;
}
throw;
}
});
baseScripts = baseScripts.OrderBy(s => s.Key).ToList();
compareScripts = compareScripts.OrderBy(s => s.Key).ToList();
baseScripts.MergeSorted(compareScripts, s => s.Key, mergeScripts);
return(metadata);
}
