private XElement FindMatchingPackageNode(PackageReference entry, XElement packagesNode)
{
XElement matchingIdNode;
bool hasMatchingNode = PackagesConfig.HasAttributeValue(packagesNode, PackagesConfig.IdAttributeName,
entry.PackageIdentity.Id, out matchingIdNode);
if (matchingIdNode != null)
{
string version;
PackagesConfig.TryGetAttribute(matchingIdNode, PackagesConfig.VersionAttributeName, out version);
if (!string.IsNullOrEmpty(version))
{
NuGetVersion nuGetVersion;
bool isNuGetVersion = NuGetVersion.TryParse(version, out nuGetVersion);
if (isNuGetVersion && nuGetVersion != null && nuGetVersion.Equals(entry.PackageIdentity.Version))
{
return(matchingIdNode);
}
}
}
return(null);
}
/// <summary>
/// Adds a package entry to the file
/// </summary>
/// <param name="entry">Package reference entry</param>
public void AddPackageEntry(PackageReference entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
if (_disposed)
{
throw new PackagesConfigWriterException(string.Format(CultureInfo.CurrentCulture,
Strings.UnableToAddEntry));
}
var packagesNode = EnsurePackagesNode();
XElement package;
if (PackagesConfig.HasAttributeValue(packagesNode, PackagesConfig.IdAttributeName, entry.PackageIdentity.Id, out package))
{
throw new PackagesConfigWriterException(String.Format(CultureInfo.CurrentCulture,
Strings.PackageEntryAlreadyExist, entry.PackageIdentity.Id));
}
else
{
// Append the entry to existing package nodes
var node = CreateXElementForPackageEntry(entry);
packagesNode.Add(node);
// Sort the entries by package Id
SortPackageNodes(packagesNode);
}
}
private XElement ReplacePackageAttributes(XElement existingNode, PackageReference newEntry)
{
var newEntryNode = CreateXElementForPackageEntry(newEntry);
var newAttributeNames = newEntryNode.Attributes().Select(a => a.Name);
var existingAttributeNames = existingNode.Attributes().Select(a => a.Name);
var addableAttributeNames = newAttributeNames.Except(existingAttributeNames);
foreach (XName name in existingAttributeNames)
{
// Clear newValue
string newValue = null;
// Try to get newValue correlated to the attribute on the existing node.
PackagesConfig.TryGetAttribute(newEntryNode, name.LocalName, out newValue);
// When the attribute is not specified a value in the new node
if (string.IsNullOrEmpty(newValue))
{
if (name.Equals(XName.Get(PackagesConfig.RequireInstallAttributeName)))
{
// Remove the requirementReinstallation attribute.
existingNode.SetAttributeValue(name, value: null);
}
else
{
// no-op. Keep the allowedVersion attribute and all other attributes as-is.
}
}
else
{
// Replace existing attributes with new values
existingNode.SetAttributeValue(name, newValue);
}
}
// Add new attributes that was not in the old package reference entry, if any
foreach (XName name in addableAttributeNames)
{
var attribute = new XAttribute(name, newEntryNode.Attribute(name).Value);
existingNode.Add(attribute);
}
return(existingNode);
}
/// <summary>
/// Get a boolean attribute value, or false if it does not exist
/// </summary>
public static bool BoolAttribute(XElement node, string name, bool defaultValue = false)
{
string value = null;
if (PackagesConfig.TryGetAttribute(node, name, out value))
{
if (StringComparer.OrdinalIgnoreCase.Equals(value, "true"))
{
return(true);
}
else
{
return(false);
}
}
return(defaultValue);
}
/// <summary>
/// Update a package entry using the original entry as a base if it exists.
/// </summary>
public void UpdateOrAddPackageEntry(XDocument originalConfig, PackageReference newEntry)
{
if (originalConfig == null)
{
throw new ArgumentNullException(nameof(originalConfig));
}
if (newEntry == null)
{
throw new ArgumentNullException(nameof(newEntry));
}
if (_disposed)
{
throw new PackagesConfigWriterException(string.Format(CultureInfo.CurrentCulture,
Strings.UnableToAddEntry));
}
var originalPackagesNode = originalConfig.Element(XName.Get(PackagesConfig.PackagesNodeName));
XElement matchingIdNode;
if (PackagesConfig.HasAttributeValue(
originalPackagesNode,
PackagesConfig.IdAttributeName,
newEntry.PackageIdentity.Id,
out matchingIdNode))
{
// Find the old entry and update it based on the new entry
var packagesNode = _xDocument.Element(XName.Get(PackagesConfig.PackagesNodeName));
var newPackageNode = ReplacePackageAttributes(matchingIdNode, newEntry);
packagesNode.Add(newPackageNode);
SortPackageNodes(packagesNode);
}
else
{
// There was no existing entry, add a new one
AddPackageEntry(newEntry);
}
}
/// <summary>
/// Reads all package node entries in the config.
/// </summary>
/// <param name="allowDuplicatePackageIds">If True validation will be performed to ensure that
/// only one entry exists for each unique package id.</param>
public IEnumerable <PackageReference> GetPackages(bool allowDuplicatePackageIds)
{
var packages = new List <PackageReference>();
foreach (var package in _doc.Root.Elements(XName.Get(PackagesConfig.PackageNodeName)))
{
string id = null;
if (!PackagesConfig.TryGetAttribute(package, "id", out id) ||
String.IsNullOrEmpty(id))
{
throw new PackagesConfigReaderException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorNullOrEmptyPackageId));
}
string version = null;
if (!PackagesConfig.TryGetAttribute(package, PackagesConfig.VersionAttributeName, out version) ||
String.IsNullOrEmpty(version))
{
throw new PackagesConfigReaderException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorInvalidPackageVersion,
id,
version));
}
NuGetVersion semver = null;
if (!NuGetVersion.TryParse(version, out semver))
{
throw new PackagesConfigReaderException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorInvalidPackageVersion,
id,
version));
}
string attributeValue = null;
VersionRange allowedVersions = null;
if (PackagesConfig.TryGetAttribute(package, PackagesConfig.allowedVersionsAttributeName, out attributeValue))
{
if (!VersionRange.TryParse(attributeValue, out allowedVersions))
{
throw new PackagesConfigReaderException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorInvalidAllowedVersions,
id,
attributeValue));
}
}
var targetFramework = NuGetFramework.UnsupportedFramework;
if (PackagesConfig.TryGetAttribute(package, PackagesConfig.TargetFrameworkAttributeName, out attributeValue))
{
targetFramework = NuGetFramework.Parse(attributeValue, _frameworkMappings);
}
var developmentDependency = PackagesConfig.BoolAttribute(package, PackagesConfig.developmentDependencyAttributeName);
var requireReinstallation = PackagesConfig.BoolAttribute(package, PackagesConfig.RequireInstallAttributeName);
var userInstalled = PackagesConfig.BoolAttribute(package, PackagesConfig.UserInstalledAttributeName, true);
var entry = new PackageReference(new PackageIdentity(id, semver), targetFramework, userInstalled, developmentDependency, requireReinstallation, allowedVersions);
packages.Add(entry);
}
// check if there are duplicate entries
var duplicates = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
PackageIdentity lastIdentity = null;
var comparer = PackageIdentity.Comparer;
// Sort the list of packages and check for duplicates
foreach (var package in packages.OrderBy(p => p.PackageIdentity, comparer))
{
if (lastIdentity != null)
{
if (allowDuplicatePackageIds)
{
// Full compare
if (comparer.Equals(package.PackageIdentity, lastIdentity))
{
duplicates.Add(lastIdentity.ToString());
}
}
else if (string.Equals(
package.PackageIdentity.Id,
lastIdentity.Id,
StringComparison.OrdinalIgnoreCase))
{
// Id only compare
duplicates.Add(lastIdentity.Id);
}
}
lastIdentity = package.PackageIdentity;
}
if (duplicates.Count > 0)
{
throw new PackagesConfigReaderException(string.Format(
CultureInfo.CurrentCulture,
Strings.ErrorDuplicatePackages,
string.Join(", ", duplicates)));
}
return(packages);
}