Class Repository

java.lang.Object
org.eclipse.jgit.lib.Repository
All Implemented Interfaces:
AutoCloseable
Direct Known Subclasses:
DfsRepository, FileRepository

public abstract class Repository extends Object implements AutoCloseable
Represents a Git repository.

A repository holds all objects and refs used for managing source code (could be any type of file, but source code is what SCM's are typically used for).

The thread-safety of a Repository very much depends on the concrete implementation. Applications working with a generic Repository type must not assume the instance is thread-safe.

  • FileRepository is thread-safe.
  • DfsRepository thread-safety is determined by its subclass.
  • Field Details

    • LOG

      private static final org.slf4j.Logger LOG
    • globalListeners

      private static final ListenerList globalListeners
    • FORBIDDEN_BRANCH_NAME_COMPONENTS

      private static final Pattern FORBIDDEN_BRANCH_NAME_COMPONENTS
      Branch names containing slashes should not have a name component that is one of the reserved device names on Windows.
      See Also:
    • useCnt

      final AtomicInteger useCnt
      Use counter
    • closedAt

      final AtomicLong closedAt
    • gitDir

      private final File gitDir
      Metadata directory holding the repository's critical files.
    • fs

      private final FS fs
      File abstraction used to resolve paths.
    • myListeners

      private final ListenerList myListeners
    • workTree

      private final File workTree
      If not bare, the top level directory of the working files.
    • indexFile

      private final File indexFile
      If not bare, the index file caching the working file states.
    • initialBranch

      private final String initialBranch
  • Constructor Details

    • Repository

      protected Repository(BaseRepositoryBuilder options)
      Initialize a new repository instance.
      Parameters:
      options - options to configure the repository.
  • Method Details

    • getGlobalListenerList

      public static ListenerList getGlobalListenerList()
      Get the global listener list observing all events in this JVM.
      Returns:
      the global listener list observing all events in this JVM.
    • getListenerList

      @NonNull public ListenerList getListenerList()
      Get listeners observing only events on this repository.
      Returns:
      listeners observing only events on this repository.
    • fireEvent

      public void fireEvent(RepositoryEvent<?> event)
      Fire an event to all registered listeners.

      The source repository of the event is automatically set to this repository, before the event is delivered to any listeners.

      Parameters:
      event - the event to deliver.
    • create

      public void create() throws IOException
      Create a new Git repository.

      Repository with working tree is created using this method. This method is the same as create(false).

      Throws:
      IOException
      See Also:
    • create

      public abstract void create(boolean bare) throws IOException
      Create a new Git repository initializing the necessary files and directories.
      Parameters:
      bare - if true, a bare repository (a repository without a working directory) is created.
      Throws:
      IOException - in case of IO problem
    • getDirectory

      public File getDirectory()
      Get local metadata directory
      Returns:
      local metadata directory; null if repository isn't local.
    • getIdentifier

      public abstract String getIdentifier()
      Get repository identifier.
      Returns:
      repository identifier. The returned identifier has to be unique within a given Git server.
      Since:
      5.4
    • getObjectDatabase

      @NonNull public abstract ObjectDatabase getObjectDatabase()
      Get the object database which stores this repository's data.
      Returns:
      the object database which stores this repository's data.
    • newObjectInserter

      @NonNull public ObjectInserter newObjectInserter()
      Create a new inserter to create objects in getObjectDatabase().
      Returns:
      a new inserter to create objects in getObjectDatabase().
    • newObjectReader

      @NonNull public ObjectReader newObjectReader()
      Create a new reader to read objects from getObjectDatabase().
      Returns:
      a new reader to read objects from getObjectDatabase().
    • getRefDatabase

      @NonNull public abstract RefDatabase getRefDatabase()
      Get the reference database which stores the reference namespace.
      Returns:
      the reference database which stores the reference namespace.
    • getConfig

      @NonNull public abstract StoredConfig getConfig()
      Get the configuration of this repository.
      Returns:
      the configuration of this repository.
    • createAttributesNodeProvider

      @NonNull public abstract AttributesNodeProvider createAttributesNodeProvider()
      Returns:
      a new AttributesNodeProvider. This AttributesNodeProvider is lazy loaded only once. It means that it will not be updated after loading. Prefer creating new instance for each use.
      Since:
      4.2
    • getFS

      public FS getFS()
      Get the used file system abstraction.
      Returns:
      the used file system abstraction, or null if repository isn't local.
    • hasObject

      @Deprecated public boolean hasObject(AnyObjectId objectId)
      Deprecated.
      use getObjectDatabase().has(objectId)
      Whether the specified object is stored in this repo or any of the known shared repositories.
      Parameters:
      objectId - a AnyObjectId object.
      Returns:
      true if the specified object is stored in this repo or any of the known shared repositories.
    • open

      Open an object from this repository.

      This is a one-shot call interface which may be faster than allocating a newObjectReader() to perform the lookup.

      Parameters:
      objectId - identity of the object to open.
      Returns:
      a ObjectLoader for accessing the object.
      Throws:
      MissingObjectException - the object does not exist.
      IOException - the object store cannot be accessed.
    • open

      Open an object from this repository.

      This is a one-shot call interface which may be faster than allocating a newObjectReader() to perform the lookup.

      Parameters:
      objectId - identity of the object to open.
      typeHint - hint about the type of object being requested, e.g. Constants.OBJ_BLOB; ObjectReader.OBJ_ANY if the object type is not known, or does not matter to the caller.
      Returns:
      a ObjectLoader for accessing the object.
      Throws:
      MissingObjectException - the object does not exist.
      IncorrectObjectTypeException - typeHint was not OBJ_ANY, and the object's actual type does not match typeHint.
      IOException - the object store cannot be accessed.
    • updateRef

      @NonNull public RefUpdate updateRef(String ref) throws IOException
      Create a command to update, create or delete a ref in this repository.
      Parameters:
      ref - name of the ref the caller wants to modify.
      Returns:
      an update command. The caller must finish populating this command and then invoke one of the update methods to actually make a change.
      Throws:
      IOException - a symbolic ref was passed in and could not be resolved back to the base ref, as the symbolic ref could not be read.
    • updateRef

      @NonNull public RefUpdate updateRef(String ref, boolean detach) throws IOException
      Create a command to update, create or delete a ref in this repository.
      Parameters:
      ref - name of the ref the caller wants to modify.
      detach - true to create a detached head
      Returns:
      an update command. The caller must finish populating this command and then invoke one of the update methods to actually make a change.
      Throws:
      IOException - a symbolic ref was passed in and could not be resolved back to the base ref, as the symbolic ref could not be read.
    • renameRef

      @NonNull public RefRename renameRef(String fromRef, String toRef) throws IOException
      Create a command to rename a ref in this repository
      Parameters:
      fromRef - name of ref to rename from
      toRef - name of ref to rename to
      Returns:
      an update command that knows how to rename a branch to another.
      Throws:
      IOException - the rename could not be performed.
    • resolve

      Parse a git revision string and return an object id. Combinations of these operators are supported:
      • HEAD, MERGE_HEAD, FETCH_HEAD
      • SHA-1: a complete or abbreviated SHA-1
      • refs/...: a complete reference name
      • short-name: a short reference name under refs/heads, refs/tags, or refs/remotes namespace
      • tag-NN-gABBREV: output from describe, parsed by treating ABBREV as an abbreviated SHA-1.
      • id^: first parent of commit id, this is the same as id^1
      • id^0: ensure id is a commit
      • id^n: n-th parent of commit id
      • id~n: n-th historical ancestor of id, by first parent. id~3 is equivalent to id^1^1^1 or id^^^.
      • id:path: Lookup path under tree named by id
      • id^{commit}: ensure id is a commit
      • id^{tree}: ensure id is a tree
      • id^{tag}: ensure id is a tag
      • id^{blob}: ensure id is a blob

      The following operators are specified by Git conventions, but are not supported by this method:

      • ref@{n}: n-th version of ref as given by its reflog
      • ref@{time}: value of ref at the designated time
      Parameters:
      revstr - A git object references expression
      Returns:
      an ObjectId or null if revstr can't be resolved to any ObjectId
      Throws:
      AmbiguousObjectException - revstr contains an abbreviated ObjectId and this repository contains more than one object which match to the input abbreviation.
      IncorrectObjectTypeException - the id parsed does not meet the type required to finish applying the operators in the expression.
      RevisionSyntaxException - the expression is not supported by this implementation, or does not meet the standard syntax.
      IOException - on serious errors
    • simplify

      @Nullable public String simplify(String revstr) throws AmbiguousObjectException, IOException
      Simplify an expression, but unlike resolve(String) it will not resolve a branch passed or resulting from the expression, such as @{-}. Thus this method can be used to process an expression to a method that expects a branch or revision id.
      Parameters:
      revstr - a String object.
      Returns:
      object id or ref name from resolved expression or null if given expression cannot be resolved
      Throws:
      AmbiguousObjectException
      IOException
    • resolve

      @Nullable private Object resolve(RevWalk rw, String revstr) throws IOException
      Throws:
      IOException
    • isHex

      private static boolean isHex(char c)
    • isAllHex

      private static boolean isAllHex(String str, int ptr)
    • parseSimple

      @Nullable private RevObject parseSimple(RevWalk rw, String revstr) throws IOException
      Throws:
      IOException
    • resolveSimple

      @Nullable private ObjectId resolveSimple(String revstr) throws IOException
      Throws:
      IOException
    • resolveReflogCheckout

      @Nullable private String resolveReflogCheckout(int checkoutNo) throws IOException
      Throws:
      IOException
    • resolveReflog

      private RevCommit resolveReflog(RevWalk rw, Ref ref, String time) throws IOException
      Throws:
      IOException
    • resolveAbbreviation

      @Nullable private ObjectId resolveAbbreviation(String revstr) throws IOException, AmbiguousObjectException
      Throws:
      IOException
      AmbiguousObjectException
    • incrementOpen

      public void incrementOpen()
      Increment the use counter by one, requiring a matched close().
    • close

      public void close()

      Decrement the use count, and maybe close resources.

      Specified by:
      close in interface AutoCloseable
    • doClose

      protected void doClose()
      Invoked when the use count drops to zero during close().

      The default implementation closes the object and ref databases.

    • toString

      @NonNull public String toString()
      Overrides:
      toString in class Object
    • getFullBranch

      @Nullable public String getFullBranch() throws IOException
      Get the name of the reference that HEAD points to.

      This is essentially the same as doing:

       return exactRef(Constants.HEAD).getTarget().getName()
       
      Except when HEAD is detached, in which case this method returns the current ObjectId in hexadecimal string format.
      Returns:
      name of current branch (for example refs/heads/master), an ObjectId in hex format if the current branch is detached, or null if the repository is corrupt and has no HEAD reference.
      Throws:
      IOException
    • getBranch

      @Nullable public String getBranch() throws IOException
      Get the short name of the current branch that HEAD points to.

      This is essentially the same as getFullBranch(), except the leading prefix refs/heads/ is removed from the reference before it is returned to the caller.

      Returns:
      name of current branch (for example master), an ObjectId in hex format if the current branch is detached, or null if the repository is corrupt and has no HEAD reference.
      Throws:
      IOException
    • getInitialBranch

      @NonNull protected String getInitialBranch()
      Get the initial branch name of a new repository
      Returns:
      the initial branch name of a new repository
      Since:
      5.11
    • getAdditionalHaves

      @NonNull public Set<ObjectId> getAdditionalHaves()
      Objects known to exist but not expressed by getAllRefs().

      When a repository borrows objects from another repository, it can advertise that it safely has that other repository's references, without exposing any other details about the other repository. This may help a client trying to push changes avoid pushing more than it needs to.

      Returns:
      unmodifiable collection of other known objects.
    • exactRef

      @Nullable public final Ref exactRef(String name) throws IOException
      Get a ref by name.
      Parameters:
      name - the name of the ref to lookup. Must not be a short-hand form; e.g., "master" is not automatically expanded to "refs/heads/master".
      Returns:
      the Ref with the given name, or null if it does not exist
      Throws:
      IOException
      Since:
      4.2
    • findRef

      @Nullable public final Ref findRef(String name) throws IOException
      Search for a ref by (possibly abbreviated) name.
      Parameters:
      name - the name of the ref to lookup. May be a short-hand form, e.g. "master" which is automatically expanded to "refs/heads/master" if "refs/heads/master" already exists.
      Returns:
      the Ref with the given name, or null if it does not exist
      Throws:
      IOException
      Since:
      4.2
    • getAllRefs

      @Deprecated @NonNull public Map<String,Ref> getAllRefs()
      Deprecated.
      use getRefDatabase().getRefs() instead.
      Get mutable map of all known refs, including symrefs like HEAD that may not point to any object yet.
      Returns:
      mutable map of all known refs (heads, tags, remotes).
    • getTags

      @Deprecated @NonNull public Map<String,Ref> getTags()
      Deprecated.
      use getRefDatabase().getRefsByPrefix(R_TAGS) instead
      Get mutable map of all tags
      Returns:
      mutable map of all tags; key is short tag name ("v1.0") and value of the entry contains the ref with the full tag name ("refs/tags/v1.0").
    • peel

      @Deprecated @NonNull public Ref peel(Ref ref)
      Deprecated.
      use getRefDatabase().peel(ref) instead.
      Peel a possibly unpeeled reference to an annotated tag.

      If the ref cannot be peeled (as it does not refer to an annotated tag) the peeled id stays null, but Ref.isPeeled() will be true.

      Parameters:
      ref - The ref to peel
      Returns:
      ref if ref.isPeeled() is true; else a new Ref object representing the same data as Ref, but isPeeled() will be true and getPeeledObjectId will contain the peeled object (or null).
    • getAllRefsByPeeledObjectId

      @NonNull public Map<AnyObjectId,Set<Ref>> getAllRefsByPeeledObjectId()
      Get a map with all objects referenced by a peeled ref.
      Returns:
      a map with all objects referenced by a peeled ref.
    • getIndexFile

      @NonNull public File getIndexFile() throws NoWorkTreeException
      Get the index file location or null if repository isn't local.
      Returns:
      the index file location or null if repository isn't local.
      Throws:
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • parseCommit

      Locate a reference to a commit and immediately parse its content.

      This method only returns successfully if the commit object exists, is verified to be a commit, and was parsed without error.

      Parameters:
      id - name of the commit object.
      Returns:
      reference to the commit object. Never null.
      Throws:
      MissingObjectException - the supplied commit does not exist.
      IncorrectObjectTypeException - the supplied id is not a commit or an annotated tag.
      IOException - a pack file or loose object could not be read.
      Since:
      4.8
    • readDirCache

      Create a new in-core index representation and read an index from disk.

      The new index will be read before it is returned to the caller. Read failures are reported as exceptions and therefore prevent the method from returning a partially populated index.

      Returns:
      a cache representing the contents of the specified index file (if it exists) or an empty cache if the file does not exist.
      Throws:
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
      IOException - the index file is present but could not be read.
      CorruptObjectException - the index file is using a format or extension that this library does not support.
    • lockDirCache

      Create a new in-core index representation, lock it, and read from disk.

      The new index will be locked and then read before it is returned to the caller. Read failures are reported as exceptions and therefore prevent the method from returning a partially populated index.

      Returns:
      a cache representing the contents of the specified index file (if it exists) or an empty cache if the file does not exist.
      Throws:
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
      IOException - the index file is present but could not be read, or the lock could not be obtained.
      CorruptObjectException - the index file is using a format or extension that this library does not support.
    • getRepositoryState

      @NonNull public RepositoryState getRepositoryState()
      Get the repository state
      Returns:
      the repository state
    • isValidRefName

      public static boolean isValidRefName(String refName)
      Check validity of a ref name. It must not contain character that has a special meaning in a Git object reference expression. Some other dangerous characters are also excluded. For portability reasons '\' is excluded
      Parameters:
      refName - a String object.
      Returns:
      true if refName is a valid ref name
    • normalizeBranchName

      public static String normalizeBranchName(String name)
      Normalizes the passed branch name into a possible valid branch name. The validity of the returned name should be checked by a subsequent call to isValidRefName(String).

      Future implementations of this method could be more restrictive or more lenient about the validity of specific characters in the returned name.

      The current implementation returns the trimmed input string if this is already a valid branch name. Otherwise it returns a trimmed string with special characters not allowed by isValidRefName(String) replaced by hyphens ('-') and blanks replaced by underscores ('_'). Leading and trailing slashes, dots, hyphens, and underscores are removed.

      Parameters:
      name - to normalize
      Returns:
      The normalized name or an empty String if it is null or empty.
      Since:
      4.7
      See Also:
    • stripWorkDir

      @NonNull public static String stripWorkDir(File workDir, File file)
      Strip work dir and return normalized repository path.
      Parameters:
      workDir - Work dir
      file - File whose path shall be stripped of its workdir
      Returns:
      normalized repository relative path or the empty string if the file is not relative to the work directory.
    • isBare

      public boolean isBare()
      Whether this repository is bare
      Returns:
      true if this is bare, which implies it has no working directory.
    • getWorkTree

      @NonNull public File getWorkTree() throws NoWorkTreeException
      Get the root directory of the working tree, where files are checked out for viewing and editing.
      Returns:
      the root directory of the working tree, where files are checked out for viewing and editing.
      Throws:
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • scanForRepoChanges

      public abstract void scanForRepoChanges() throws IOException
      Force a scan for changed refs. Fires an IndexChangedEvent(false) if changes are detected.
      Throws:
      IOException
    • notifyIndexChanged

      public abstract void notifyIndexChanged(boolean internal)
      Notify that the index changed by firing an IndexChangedEvent.
      Parameters:
      internal - true if the index was changed by the same JGit process
      Since:
      5.0
    • shortenRefName

      @NonNull public static String shortenRefName(String refName)
      Get a shortened more user friendly ref name
      Parameters:
      refName - a String object.
      Returns:
      a more user friendly ref name
    • shortenRemoteBranchName

      @Nullable public String shortenRemoteBranchName(String refName)
      Get a shortened more user friendly remote tracking branch name
      Parameters:
      refName - a String object.
      Returns:
      the remote branch name part of refName, i.e. without the refs/remotes/<remote> prefix, if refName represents a remote tracking branch; otherwise null.
      Since:
      3.4
    • getRemoteName

      @Nullable public String getRemoteName(String refName)
      Get remote name
      Parameters:
      refName - a String object.
      Returns:
      the remote name part of refName, i.e. without the refs/remotes/<remote> prefix, if refName represents a remote tracking branch; otherwise null.
      Since:
      3.4
    • getGitwebDescription

      @Nullable public String getGitwebDescription() throws IOException
      Read the GIT_DIR/description file for gitweb.
      Returns:
      description text; null if no description has been configured.
      Throws:
      IOException - description cannot be accessed.
      Since:
      4.6
    • setGitwebDescription

      public void setGitwebDescription(@Nullable String description) throws IOException
      Set the GIT_DIR/description file for gitweb.
      Parameters:
      description - new description; null to clear the description.
      Throws:
      IOException - description cannot be persisted.
      Since:
      4.6
    • getReflogReader

      @Nullable public abstract ReflogReader getReflogReader(String refName) throws IOException
      Get the reflog reader
      Parameters:
      refName - a String object.
      Returns:
      a ReflogReader for the supplied refname, or null if the named ref does not exist.
      Throws:
      IOException - the ref could not be accessed.
      Since:
      3.0
    • readMergeCommitMsg

      @Nullable public String readMergeCommitMsg() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/MERGE_MSG. In this file operations triggering a merge will store a template for the commit message of the merge commit.
      Returns:
      a String containing the content of the MERGE_MSG file or null if this file doesn't exist
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • writeMergeCommitMsg

      public void writeMergeCommitMsg(String msg) throws IOException
      Write new content to the file $GIT_DIR/MERGE_MSG. In this file operations triggering a merge will store a template for the commit message of the merge commit. If null is specified as message the file will be deleted.
      Parameters:
      msg - the message which should be written or null to delete the file
      Throws:
      IOException
    • readCommitEditMsg

      @Nullable public String readCommitEditMsg() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/COMMIT_EDITMSG. In this file hooks triggered by an operation may read or modify the current commit message.
      Returns:
      a String containing the content of the COMMIT_EDITMSG file or null if this file doesn't exist
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
      Since:
      4.0
    • writeCommitEditMsg

      public void writeCommitEditMsg(String msg) throws IOException
      Write new content to the file $GIT_DIR/COMMIT_EDITMSG. In this file hooks triggered by an operation may read or modify the current commit message. If null is specified as message the file will be deleted.
      Parameters:
      msg - the message which should be written or null to delete the file
      Throws:
      IOException
      Since:
      4.0
    • readMergeHeads

      @Nullable public List<ObjectId> readMergeHeads() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/MERGE_HEAD. In this file operations triggering a merge will store the IDs of all heads which should be merged together with HEAD.
      Returns:
      a list of commits which IDs are listed in the MERGE_HEAD file or null if this file doesn't exist. Also if the file exists but is empty null will be returned
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • writeMergeHeads

      public void writeMergeHeads(List<? extends ObjectId> heads) throws IOException
      Write new merge-heads into $GIT_DIR/MERGE_HEAD. In this file operations triggering a merge will store the IDs of all heads which should be merged together with HEAD. If null is specified as list of commits the file will be deleted
      Parameters:
      heads - a list of commits which IDs should be written to $GIT_DIR/MERGE_HEAD or null to delete the file
      Throws:
      IOException
    • readCherryPickHead

      @Nullable public ObjectId readCherryPickHead() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/CHERRY_PICK_HEAD.
      Returns:
      object id from CHERRY_PICK_HEAD file or null if this file doesn't exist. Also if the file exists but is empty null will be returned
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • readRevertHead

      @Nullable public ObjectId readRevertHead() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/REVERT_HEAD.
      Returns:
      object id from REVERT_HEAD file or null if this file doesn't exist. Also if the file exists but is empty null will be returned
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • writeCherryPickHead

      public void writeCherryPickHead(ObjectId head) throws IOException
      Write cherry pick commit into $GIT_DIR/CHERRY_PICK_HEAD. This is used in case of conflicts to store the cherry which was tried to be picked.
      Parameters:
      head - an object id of the cherry commit or null to delete the file
      Throws:
      IOException
    • writeRevertHead

      public void writeRevertHead(ObjectId head) throws IOException
      Write revert commit into $GIT_DIR/REVERT_HEAD. This is used in case of conflicts to store the revert which was tried to be picked.
      Parameters:
      head - an object id of the revert commit or null to delete the file
      Throws:
      IOException
    • writeOrigHead

      public void writeOrigHead(ObjectId head) throws IOException
      Write original HEAD commit into $GIT_DIR/ORIG_HEAD.
      Parameters:
      head - an object id of the original HEAD commit or null to delete the file
      Throws:
      IOException
    • readOrigHead

      @Nullable public ObjectId readOrigHead() throws IOException, NoWorkTreeException
      Return the information stored in the file $GIT_DIR/ORIG_HEAD.
      Returns:
      object id from ORIG_HEAD file or null if this file doesn't exist. Also if the file exists but is empty null will be returned
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • readSquashCommitMsg

      @Nullable public String readSquashCommitMsg() throws IOException
      Return the information stored in the file $GIT_DIR/SQUASH_MSG. In this file operations triggering a squashed merge will store a template for the commit message of the squash commit.
      Returns:
      a String containing the content of the SQUASH_MSG file or null if this file doesn't exist
      Throws:
      IOException
      NoWorkTreeException - if this is bare, which implies it has no working directory. See isBare().
    • writeSquashCommitMsg

      public void writeSquashCommitMsg(String msg) throws IOException
      Write new content to the file $GIT_DIR/SQUASH_MSG. In this file operations triggering a squashed merge will store a template for the commit message of the squash commit. If null is specified as message the file will be deleted.
      Parameters:
      msg - the message which should be written or null to delete the file
      Throws:
      IOException
    • readCommitMsgFile

      @Nullable private String readCommitMsgFile(String msgFilename) throws IOException
      Throws:
      IOException
    • writeCommitMsg

      private void writeCommitMsg(File msgFile, String msg) throws IOException
      Throws:
      IOException
    • readGitDirectoryFile

      private byte[] readGitDirectoryFile(String filename) throws IOException
      Read a file from the git directory.
      Parameters:
      filename -
      Returns:
      the raw contents or null if the file doesn't exist or is empty
      Throws:
      IOException
    • writeHeadsFile

      private void writeHeadsFile(List<? extends ObjectId> heads, String filename) throws FileNotFoundException, IOException
      Write the given heads to a file in the git directory.
      Parameters:
      heads - a list of object ids to write or null if the file should be deleted.
      filename -
      Throws:
      FileNotFoundException
      IOException
    • readRebaseTodo

      @NonNull public List<RebaseTodoLine> readRebaseTodo(String path, boolean includeComments) throws IOException
      Read a file formatted like the git-rebase-todo file. The "done" file is also formatted like the git-rebase-todo file. These files can be found in .git/rebase-merge/ or .git/rebase-append/ folders.
      Parameters:
      path - path to the file relative to the repository's git-dir. E.g. "rebase-merge/git-rebase-todo" or "rebase-append/done"
      includeComments - true if also comments should be reported
      Returns:
      the list of steps
      Throws:
      IOException
      Since:
      3.2
    • writeRebaseTodoFile

      public void writeRebaseTodoFile(String path, List<RebaseTodoLine> steps, boolean append) throws IOException
      Write a file formatted like a git-rebase-todo file.
      Parameters:
      path - path to the file relative to the repository's git-dir. E.g. "rebase-merge/git-rebase-todo" or "rebase-append/done"
      steps - the steps to be written
      append - whether to append to an existing file or to write a new file
      Throws:
      IOException
      Since:
      3.2
    • getRemoteNames

      @NonNull public Set<String> getRemoteNames()
      Get the names of all known remotes
      Returns:
      the names of all known remotes
      Since:
      3.4
    • autoGC

      public void autoGC(ProgressMonitor monitor)
      Check whether any housekeeping is required; if yes, run garbage collection; if not, exit without performing any work. Some JGit commands run autoGC after performing operations that could create many loose objects.

      Currently this option is supported for repositories of type FileRepository only. See GC.setAuto(boolean) for configuration details.

      Parameters:
      monitor - to report progress
      Since:
      4.6