Package com.google.gerrit.server.patch.diff

Class ModifiedFilesLoader

java.lang.Object

com.google.gerrit.server.patch.diff.ModifiedFilesLoader

public class ModifiedFilesLoader
extends Object

Class to load the files that have been modified between two commits.

Rename detection is off unless withRenameDetection(int) is called.

The commits and their trees are looked up via the RevWalk instance that is provided to the load(com.google.gerrit.entities.Project.NameKey, Config, RevWalk, ObjectId, ObjectId) method, unless the modified files for the trees of the commits should be retrieved from the GitModifiedFilesCache (see ModifiedFilesLoader.Factory.createWithRetrievingModifiedFilesForTreesFromGitModifiedFilesCache() in which case the trees are looked up via a new RevWalk instance that is created by GitModifiedFilesCacheImpl.Loader. Looking up the trees from a new RevWalk instance only succeeds if they were already fully persisted in the repository, i.e., if these are not newly created trees or tree which have been created in memory. This means using the GitModifiedFilesCache is expected to cause MissingObjectExceptions for the commit trees that are newly created or that were created in memory only.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ModifiedFilesLoader.Factory

Method Summary

Modifier and Type	Method	Description
com.google.common.collect.ImmutableList<ModifiedFile>	load(Project.NameKey project, org.eclipse.jgit.lib.Config repoConfig, org.eclipse.jgit.revwalk.RevWalk revWalk, org.eclipse.jgit.lib.ObjectId baseCommit, org.eclipse.jgit.lib.ObjectId newCommit)	Loads the files that have been modified between baseCommit and newCommit.
ModifiedFilesLoader	withRenameDetection(int renameScore)	Enables rename detection

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

withRenameDetection

@CanIgnoreReturnValue
public ModifiedFilesLoader withRenameDetection(int renameScore)

Enables rename detection

Parameters:

renameScore - the score that should be used for the rename detection.

load

public com.google.common.collect.ImmutableList<ModifiedFile> load(Project.NameKey project,
 org.eclipse.jgit.lib.Config repoConfig,
 org.eclipse.jgit.revwalk.RevWalk revWalk,
 org.eclipse.jgit.lib.ObjectId baseCommit,
 org.eclipse.jgit.lib.ObjectId newCommit)
                                                           throws DiffNotAvailableException

Loads the files that have been modified between baseCommit and newCommit.

The commits and the commit trees are looked up via the given revWalk instance, unless the modified files for the trees of the commits should be retrieved from the GitModifiedFilesCache (see ModifiedFilesLoader.Factory.createWithRetrievingModifiedFilesForTreesFromGitModifiedFilesCache() in which case the trees are looked up via a new RevWalk instance that is created by GitModifiedFilesCacheImpl.Loader. Also see the javadoc on this class.

Throws:

DiffNotAvailableException