/// <summary>
/// Returns the smallest range that includes all given ranges.
/// </summary>
public static VersionRange Combine(IEnumerable <VersionRange> ranges, IVersionComparer comparer)
{
VersionRange result = VersionRange.None;
if (ranges.Any())
{
VersionRangeComparer rangeComparer = new VersionRangeComparer(comparer);
// remove zero ranges
ranges = ranges.Where(r => !rangeComparer.Equals(r, VersionRange.None));
var first = ranges.First();
NuGetVersion lowest = first.MinVersion;
bool includeLowest = first.IsMinInclusive;
NuGetVersion highest = first.MaxVersion;
bool includeHighest = first.IsMaxInclusive;
bool includePre = first.IncludePrerelease;
foreach (var range in ranges.Skip(1))
{
includePre |= range.IncludePrerelease;
if (!range.HasLowerBound)
{
lowest = null;
includeLowest |= range.IsMinInclusive;
}
else if (comparer.Compare(range.MinVersion, lowest) < 0)
{
lowest = range.MinVersion;
includeLowest = range.IsMinInclusive;
}
if (!range.HasUpperBound)
{
highest = null;
includeHighest |= range.IsMinInclusive;
}
else if (comparer.Compare(range.MinVersion, highest) > 0)
{
highest = range.MinVersion;
includeHighest = range.IsMinInclusive;
}
}
result = new VersionRange(lowest, includeLowest, highest, includeHighest, includePre);
}
return(result);
}
/// <summary>
/// SubSet check
/// </summary>
public bool IsSubSetOrEqualTo(VersionRangeBase possibleSuperSet, IVersionComparer comparer)
{
var rangeComparer = new VersionRangeComparer(comparer);
var possibleSubSet = this;
var target = possibleSuperSet;
if (rangeComparer.Equals(possibleSubSet, VersionRange.None))
{
return(true);
}
if (rangeComparer.Equals(target, VersionRange.None))
{
return(false);
}
if (target == null)
{
target = VersionRange.All;
}
if (possibleSubSet == null)
{
possibleSubSet = VersionRange.All;
}
var result = true;
if (possibleSubSet.IncludePrerelease &&
!target.IncludePrerelease)
{
result = false;
}
if (possibleSubSet.HasLowerBound)
{
// normal check
if (!target.Satisfies(possibleSubSet.MinVersion))
{
// it's possible we didn't need that version, do a special non inclusive check
if (!possibleSubSet.IsMinInclusive &&
!target.IsMinInclusive)
{
result &= comparer.Equals(target.MinVersion, possibleSubSet.MinVersion);
}
else
{
result = false;
}
}
}
else
{
result &= !target.HasLowerBound;
}
if (possibleSubSet.HasUpperBound)
{
// normal check
if (!target.Satisfies(possibleSubSet.MaxVersion))
{
// it's possible we didn't need that version, do a special non inclusive check
if (!possibleSubSet.IsMaxInclusive &&
!target.IsMaxInclusive)
{
result &= comparer.Equals(target.MaxVersion, possibleSubSet.MaxVersion);
}
else
{
result = false;
}
}
}
else
{
result &= !target.HasUpperBound;
}
return(result);
}
/// <summary>
/// Returns the smallest range that includes all given ranges.
/// </summary>
public static VersionRange Combine(IEnumerable<VersionRange> ranges, IVersionComparer comparer)
{
VersionRange result = VersionRange.None;
if (ranges.Any())
{
VersionRangeComparer rangeComparer = new VersionRangeComparer(comparer);
// remove zero ranges
ranges = ranges.Where(r => !rangeComparer.Equals(r, VersionRange.None));
var first = ranges.First();
NuGetVersion lowest = first.MinVersion;
bool includeLowest = first.IsMinInclusive;
NuGetVersion highest = first.MaxVersion;
bool includeHighest = first.IsMaxInclusive;
bool includePre = first.IncludePrerelease;
foreach (var range in ranges.Skip(1))
{
includePre |= range.IncludePrerelease;
if (!range.HasLowerBound)
{
lowest = null;
includeLowest |= range.IsMinInclusive;
}
else if (comparer.Compare(range.MinVersion, lowest) < 0)
{
lowest = range.MinVersion;
includeLowest = range.IsMinInclusive;
}
if (!range.HasUpperBound)
{
highest = null;
includeHighest |= range.IsMinInclusive;
}
else if (comparer.Compare(range.MinVersion, highest) > 0)
{
highest = range.MinVersion;
includeHighest = range.IsMinInclusive;
}
}
result = new VersionRange(lowest, includeLowest, highest, includeHighest, includePre);
}
return result;
}
