org.eclipse.jgit.util

Class LfsFactory

java.lang.Object

org.eclipse.jgit.util.LfsFactory

Direct Known Subclasses:

BuiltinLFS

public class LfsFactory
extends Object

Represents an optionally present LFS support implementation

Since:

4.11

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LfsFactory.LfsInputStream Encapsulate a potentially exchanged InputStream along with the expected stream content length.
static interface	LfsFactory.LfsInstallCommand A command to enable LFS.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LfsFactory() Constructor

Method Summary

Modifier and Type	Method and Description
LfsFactory.LfsInputStream	applyCleanFilter(Repository db, InputStream input, long length, Attribute attribute) Apply clean filtering to the given stream, writing the file content to the LFS storage if required and returning a stream to the LFS pointer instead.
ObjectLoader	applySmudgeFilter(Repository db, ObjectLoader loader, Attribute attribute) Apply smudge filtering to a given loader, potentially redirecting it to a LFS blob which is downloaded on demand.
static Attributes	getAttributesForPath(Repository db, String path)
static Attributes	getAttributesForPath(Repository db, String path, RevCommit commit) Get attributes for given path and commit
LfsFactory.LfsInstallCommand	getInstallCommand() Retrieve an LfsFactory.LfsInstallCommand which can be used to enable LFS support (if available) either per repository or for the user.
static LfsFactory	getInstance()
PrePushHook	getPrePushHook(Repository repo, PrintStream outputStream) Retrieve a pre-push hook to be applied.
boolean	isAvailable()
boolean	isEnabled(Repository db)
static void	setInstance(LfsFactory instance)

Methods inherited from class java.lang.Object

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

Constructor Detail

LfsFactory

protected LfsFactory()

Constructor

Method Detail

getInstance

public static LfsFactory getInstance()

Returns:

the current LFS implementation

setInstance

public static void setInstance(LfsFactory instance)

Parameters:

instance - register a LfsFactory instance as the LfsFactory implementation to use.

isAvailable

public boolean isAvailable()

Returns:

whether LFS support is available

applyCleanFilter

public LfsFactory.LfsInputStream applyCleanFilter(Repository db,
                                                  InputStream input,
                                                  long length,
                                                  Attribute attribute)
                                           throws IOException

Apply clean filtering to the given stream, writing the file content to the LFS storage if required and returning a stream to the LFS pointer instead.

Parameters:

db - the repository

input - the original input

length - the expected input stream length

attribute - the attribute used to check for LFS enablement (i.e. "merge", "diff", "filter" from .gitattributes).

Returns:

a stream to the content that should be written to the object store along with the expected length of the stream. the original stream is not applicable.

Throws:

IOException - in case of an error

applySmudgeFilter

public ObjectLoader applySmudgeFilter(Repository db,
                                      ObjectLoader loader,
                                      Attribute attribute)
                               throws IOException

Apply smudge filtering to a given loader, potentially redirecting it to a LFS blob which is downloaded on demand.

Parameters:

db - the repository

loader - the loader for the blob

attribute - the attribute used to check for LFS enablement (i.e. "merge", "diff", "filter" from .gitattributes).

Returns:

a loader for the actual data of a blob, or the original loader in case LFS is not applicable.

Throws:

IOException

getPrePushHook

@Nullable
public PrePushHook getPrePushHook(Repository repo,
                                            PrintStream outputStream)

Retrieve a pre-push hook to be applied.

Parameters:

repo - the Repository the hook is applied to.

outputStream -

Returns:

a PrePushHook implementation or null

getInstallCommand

@Nullable
public LfsFactory.LfsInstallCommand getInstallCommand()

Retrieve an LfsFactory.LfsInstallCommand which can be used to enable LFS support (if available) either per repository or for the user.

Returns:

a command to install LFS support.

isEnabled

public boolean isEnabled(Repository db)

Parameters:

db - the repository to check

Returns:

whether LFS is enabled for the given repository locally or globally.

getAttributesForPath

public static Attributes getAttributesForPath(Repository db,
                                              String path)
                                       throws IOException

Parameters:

db - the repository

path - the path to find attributes for

Returns:

the Attributes for the given path.

Throws:

IOException - in case of an error

getAttributesForPath

public static Attributes getAttributesForPath(Repository db,
                                              String path,
                                              RevCommit commit)
                                       throws IOException

Get attributes for given path and commit

Parameters:

db - the repository

path - the path to find attributes for

commit - the commit to inspect.

Returns:

the Attributes for the given path.

Throws:

IOException - in case of an error