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Try to limit situations where we download too many delta's

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Caelan
2022-06-08 13:37:54 -06:00
parent b3a2eca443
commit 802efbf31f
1 changed files with 8 additions and 2 deletions
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10
src/Squirrel/UpdateInfo.cs
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@@ -94,11 +94,17 @@ namespace Squirrel
var newerThanUs = availableReleases var newerThanUs = availableReleases
.Where(x => x.Version > currentVersion.Version) .Where(x => x.Version > currentVersion.Version)
.OrderBy(v => v.Version); .OrderBy(v => v.Version)
.ToArray();
var deltasSize = newerThanUs.Where(x => x.IsDelta).Sum(x => x.Filesize); var deltasSize = newerThanUs.Where(x => x.IsDelta).Sum(x => x.Filesize);
var deltasCount = newerThanUs.Count(x => x.IsDelta);
return (deltasSize < latestFull.Filesize && deltasSize > 0) ? // delta's are cheap to download, but really expensive to apply.
// full packages are more expensive to download, but really cheap to apply.
// this tries to find a good balance of both. we will go for the full if
// there are too many delta's or if their file size is too large.
return (deltasSize > 0 && (deltasSize * 10) < latestFull.Filesize && deltasCount <= 10) ?
new UpdateInfo(currentVersion, newerThanUs.Where(x => x.IsDelta).ToArray(), packageDirectory) : new UpdateInfo(currentVersion, newerThanUs.Where(x => x.IsDelta).ToArray(), packageDirectory) :
new UpdateInfo(currentVersion, new[] { latestFull }, packageDirectory); new UpdateInfo(currentVersion, new[] { latestFull }, packageDirectory);
} }