private static BundlesInfo GenerateBundlesInfo(ref DependenciesInfo depsInfo,
ref ReservedSharedBundleInfo reserved, ref DependencyCache cache)
{
var sharedBundles = ParseSharedBundleInfo(ref depsInfo, ref reserved, ref cache);
var noneSharedBundles = ParseNoneSharedBundleInfo(ref depsInfo, ref sharedBundles);
var bundles = new BundlesInfo();
sharedBundles.Concat(noneSharedBundles).ToList().ForEach(kv => {
if (kv.Value.assets.Count > 0)
{
bundles.Add(kv.Key, kv.Value);
}
});
return(bundles);
}
private static BundlesInfo ParseNoneSharedBundleInfo(ref DependenciesInfo depsInfo, ref BundlesInfo sharedBundles)
{
// Parse none shared bundle info
var noneSharedBundles = new BundlesInfo();
foreach (var kv in depsInfo)
{
var assetName = kv.Key;
var bundles = kv.Value.referenceInBundles;
var sharedBundle = sharedBundles.FirstOrDefault(skv => skv.Value.assets.Contains(assetName)).Key ?? "";
foreach (var bundle in bundles)
{
if (!string.IsNullOrEmpty(sharedBundles.FirstOrDefault(skv => skv.Key == bundle).Key))
{
continue; // Equals to shared bundle, pass.
}
if (!noneSharedBundles.ContainsKey(bundle))
{
noneSharedBundles.Add(bundle, new BundleInfo());
}
if (string.IsNullOrEmpty(sharedBundle))
{
noneSharedBundles[bundle].assets.Add(assetName);
}
}
}
// Move *.unity files to independent bundles, because 'Cannot mark assets and scenes in one AssetBundle'
var sceneBundles = new BundlesInfo();
foreach (var kv in noneSharedBundles)
{
var noneSharedAssets = kv.Value.assets;
var removed = new List <string>();
foreach (var asset in noneSharedAssets)
{
if (!asset.EndsWith(".unity"))
{
continue;
}
var sceneBundleName = string.Format(BundlerBuildSettings.kSceneBundleFormatter,
PathUtility.RelativeProjectPathToAbsolutePath(asset));
sceneBundleName = PathUtility.NormalizeAssetBundlePath(sceneBundleName);
if (sceneBundles.ContainsKey(sceneBundleName))
{
throw new BundleException("Scene asset bundle duplicated: " + sceneBundleName);
}
var bundle = new BundleInfo();
bundle.assets.Add(asset);
sceneBundles.Add(sceneBundleName, bundle);
removed.Add(asset);
}
removed.ForEach(v => noneSharedAssets.Remove(v));
}
// Merge to none shared bundles
foreach (var kv in sceneBundles)
{
noneSharedBundles.Add(kv.Key, kv.Value);
}
return(noneSharedBundles);
}
private static BundlesInfo ParseSharedBundleInfo(ref DependenciesInfo depsInfo,
ref ReservedSharedBundleInfo reserved, ref DependencyCache cache)
{
var sharedDict = new Dictionary <string, string>();
var index = 0;
// Determine shared bundles
foreach (var kv in depsInfo)
{
var asset = kv.Key;
// Ignore this asset when forced build in shared bundle.
if (reserved.ContainsKey(asset))
{
continue;
}
var depSet = kv.Value;
// The count of dependencies no greater than 1 means that there are no other bundles
// sharing this asset
if (depSet.referenceInBundles.Count <= 1)
{
continue;
}
// Otherwise, assets which depended by the same bundles will be separated to shared bundle.
if (!sharedDict.ContainsKey(asset))
{
sharedDict[asset] = string.Format(BundlerBuildSettings.kSharedBundleFormatter,
(++index).ToString());
// Sub-assets dependencies.
var deps = CollectDependencies(asset, ref cache);
foreach (var dep in deps)
{
if (reserved.ContainsKey(dep))
{
continue;
}
sharedDict[dep] = string.Format(BundlerBuildSettings.kSharedBundleFormatter,
(++index).ToString());
}
}
}
// Collect shared bundles info
var bundlesInfo = new BundlesInfo();
foreach (var kv in sharedDict)
{
var name = sharedDict[kv.Key];
if (bundlesInfo.ContainsKey(name))
{
throw new BundleException("Shared bundle duplicated: " + name);
}
bundlesInfo[name] = new BundleInfo();
bundlesInfo[name].assets.Add(kv.Key);
}
// Generate unique bundle name according to assets list.
var sharedBundle = new BundlesInfo();
foreach (var kv in bundlesInfo)
{
var assets = kv.Value.assets.ToList();
assets.Sort((a, b) => string.Compare(a, b, StringComparison.Ordinal));
var bundleName = string.Join("-", assets.ToArray());
if (BundlerBuildSettings.kHashSharedBundle)
{
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(bundleName)))
{
var nameHash = CalculateMd5(stream);
bundleName = string.Format(BundlerBuildSettings.kSharedBundleFormatter, nameHash);
}
}
else
{
bundleName = string.Format(BundlerBuildSettings.kSharedBundleFormatter, bundleName.ToLower());
}
var bundleInfo = new BundleInfo();
foreach (var asset in kv.Value.assets)
{
bundleInfo.assets.Add(asset);
}
sharedBundle.Add(bundleName, bundleInfo);
}
// Add reserved shared bundles info
foreach (var kv in reserved)
{
var assetName = kv.Key;
var bundle = kv.Value;
if (!sharedBundle.ContainsKey(bundle))
{
sharedBundle.Add(bundle, new BundleInfo());
}
sharedBundle[bundle].assets.Add(assetName);
}
return(sharedBundle);
}