diff --git a/org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties b/org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties index aa32478ff..8aeb7e875 100644 --- a/org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties +++ b/org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties @@ -143,6 +143,7 @@ notAJgitCommand={0} is not a jgit command notARevision=Not a revision: {0} notATree={0} is not a tree notAValidRefName={0} is not a valid ref name +notAValidCommitName={0} is not a valid commit name notAnIndexFile={0} is not an index file notAnObject={0} is not an object notFound=!! NOT FOUND !! diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Branch.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Branch.java index 83a1ca7e2..65aa24f35 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Branch.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Branch.java @@ -154,10 +154,14 @@ class Branch extends TextBuiltin { startBranch = Constants.HEAD; Ref startRef = db.getRef(startBranch); ObjectId startAt = db.resolve(startBranch + "^0"); //$NON-NLS-1$ - if (startRef != null) + if (startRef != null) { startBranch = startRef.getName(); - else + } else if (startAt != null) { startBranch = startAt.name(); + } else { + throw die(MessageFormat.format( + CLIText.get().notAValidCommitName, startBranch)); + } startBranch = Repository.shortenRefName(startBranch); String newRefName = newHead; if (!newRefName.startsWith(Constants.R_HEADS)) @@ -249,7 +253,7 @@ class Branch extends TextBuiltin { String current = db.getBranch(); ObjectId head = db.resolve(Constants.HEAD); for (String branch : branches) { - if (current.equals(branch)) { + if (branch.equals(current)) { throw die(MessageFormat.format(CLIText.get().cannotDeleteTheBranchWhichYouAreCurrentlyOn, branch)); } RefUpdate update = db.updateRef((remote ? Constants.R_REMOTES diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Commit.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Commit.java index f18242d68..38d8d70ce 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Commit.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Commit.java @@ -96,6 +96,9 @@ class Commit extends TextBuiltin { commitCmd.setAmend(amend); commitCmd.setAll(all); Ref head = db.getRef(Constants.HEAD); + if (head == null) { + throw die(CLIText.get().onBranchToBeBorn); + } RevCommit commit; try { commit = commitCmd.call(); diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Merge.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Merge.java index e0ff0583c..cd65af954 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Merge.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Merge.java @@ -120,7 +120,7 @@ class Merge extends TextBuiltin { throw die(MessageFormat.format( CLIText.get().refDoesNotExistOrNoCommit, ref)); - Ref oldHead = db.getRef(Constants.HEAD); + Ref oldHead = getOldHead(); MergeResult result; try (Git git = new Git(db)) { MergeCommand mergeCmd = git.merge().setStrategy(mergeStrategy) @@ -205,6 +205,14 @@ class Merge extends TextBuiltin { } } + private Ref getOldHead() throws IOException { + Ref oldHead = db.getRef(Constants.HEAD); + if (oldHead == null) { + throw die(CLIText.get().onBranchToBeBorn); + } + return oldHead; + } + private boolean isMergedInto(Ref oldHead, AnyObjectId src) throws IOException { try (RevWalk revWalk = new RevWalk(db)) { diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java index df7ebb78b..d85698901 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java @@ -242,9 +242,10 @@ class DiffAlgorithms extends TextBuiltin { } }); - if (db.getDirectory() != null) { - String name = db.getDirectory().getName(); - File parent = db.getDirectory().getParentFile(); + File directory = db.getDirectory(); + if (directory != null) { + String name = directory.getName(); + File parent = directory.getParentFile(); if (name.equals(Constants.DOT_GIT) && parent != null) name = parent.getName(); outw.println(name + ": start at " + startId.name()); diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java index 494055a26..6260cd99f 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java @@ -117,9 +117,12 @@ class RebuildCommitGraph extends TextBuiltin { @Override protected void run() throws Exception { if (!really && !db.getRefDatabase().getRefs(ALL).isEmpty()) { + File directory = db.getDirectory(); + String absolutePath = directory == null ? "null" //$NON-NLS-1$ + : directory.getAbsolutePath(); errw.println( MessageFormat.format(CLIText.get().fatalThisProgramWillDestroyTheRepository - , db.getDirectory().getAbsolutePath(), REALLY)); + , absolutePath, REALLY)); throw die(CLIText.get().needApprovalToDestroyCurrentRepository); } if (!refList.isFile()) diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java index dcbc37bed..887ad08af 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java @@ -341,9 +341,10 @@ class TextHashFunctions extends TextBuiltin { } } - if (db.getDirectory() != null) { - String name = db.getDirectory().getName(); - File parent = db.getDirectory().getParentFile(); + File directory = db.getDirectory(); + if (directory != null) { + String name = directory.getName(); + File parent = directory.getParentFile(); if (name.equals(Constants.DOT_GIT) && parent != null) name = parent.getName(); outw.println(name + ":"); //$NON-NLS-1$ diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/internal/CLIText.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/internal/CLIText.java index 29d48ebd4..ce2b10c98 100644 --- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/internal/CLIText.java +++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/internal/CLIText.java @@ -202,6 +202,7 @@ public class CLIText extends TranslationBundle { /***/ public String notARevision; /***/ public String notATree; /***/ public String notAValidRefName; + /***/ public String notAValidCommitName; /***/ public String notAnIndexFile; /***/ public String notAnObject; /***/ public String notFound; diff --git a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties index 6e3b3047f..5f80b8103 100644 --- a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties +++ b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties @@ -45,6 +45,7 @@ cannotBeCombined=Cannot be combined. cannotBeRecursiveWhenTreesAreIncluded=TreeWalk shouldn't be recursive when tree objects are included. cannotChangeActionOnComment=Cannot change action on comment line in git-rebase-todo file, old action: {0}, new action: {1}. cannotChangeToComment=Cannot change a non-comment line to a comment line. +cannotCheckoutFromUnbornBranch=Cannot checkout from unborn branch cannotCheckoutOursSwitchBranch=Checking out ours/theirs is only possible when checking out index, not when switching branches. cannotCombineSquashWithNoff=Cannot combine --squash with --no-ff. cannotCombineTreeFilterWithRevFilter=Cannot combine TreeFilter {0} with RevFilter {1}. @@ -345,6 +346,7 @@ invalidPathReservedOnWindows=Invalid path (''{0}'' is reserved on Windows): {1} invalidReflogRevision=Invalid reflog revision: {0} invalidRefName=Invalid ref name: {0} invalidRemote=Invalid remote: {0} +invalidRepositoryStateNoHead=Invalid repository --- cannot read HEAD invalidShallowObject=invalid shallow object {0}, expected commit invalidStageForPath=Invalid stage {0} for path {1} invalidTagOption=Invalid tag option: {0} diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/CheckoutCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/CheckoutCommand.java index 8d85bfcb1..8743ea9ac 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/api/CheckoutCommand.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/CheckoutCommand.java @@ -222,6 +222,12 @@ public class CheckoutCommand extends GitCommand { } Ref headRef = repo.getRef(Constants.HEAD); + if (headRef == null) { + // TODO Git CLI supports checkout from unborn branch, we should + // also allow this + throw new UnsupportedOperationException( + JGitText.get().cannotCheckoutFromUnbornBranch); + } String shortHeadRef = getShortBranchName(headRef); String refLogMessage = "checkout: moving from " + shortHeadRef; //$NON-NLS-1$ ObjectId branch; diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseCommand.java index 753bc85bc..8582bbb0d 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseCommand.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseCommand.java @@ -668,12 +668,13 @@ public class RebaseCommand extends GitCommand { } private void writeRewrittenHashes() throws RevisionSyntaxException, - IOException { + IOException, RefNotFoundException { File currentCommitFile = rebaseState.getFile(CURRENT_COMMIT); if (!currentCommitFile.exists()) return; - String head = repo.resolve(Constants.HEAD).getName(); + ObjectId headId = getHead().getObjectId(); + String head = headId.getName(); String currentCommits = rebaseState.readFile(CURRENT_COMMIT); for (String current : currentCommits.split("\n")) //$NON-NLS-1$ RebaseState @@ -743,8 +744,8 @@ public class RebaseCommand extends GitCommand { private void resetSoftToParent() throws IOException, GitAPIException, CheckoutConflictException { - Ref orig_head = repo.getRef(Constants.ORIG_HEAD); - ObjectId orig_headId = orig_head.getObjectId(); + Ref ref = repo.getRef(Constants.ORIG_HEAD); + ObjectId orig_head = ref == null ? null : ref.getObjectId(); try { // we have already commited the cherry-picked commit. // what we need is to have changes introduced by this @@ -755,7 +756,7 @@ public class RebaseCommand extends GitCommand { } finally { // set ORIG_HEAD back to where we started because soft // reset moved it - repo.writeOrigHead(orig_headId); + repo.writeOrigHead(orig_head); } } diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/RenameBranchCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/RenameBranchCommand.java index 607253b76..0731dd45e 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/api/RenameBranchCommand.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/RenameBranchCommand.java @@ -51,6 +51,7 @@ import org.eclipse.jgit.api.errors.DetachedHeadException; import org.eclipse.jgit.api.errors.GitAPIException; import org.eclipse.jgit.api.errors.InvalidRefNameException; import org.eclipse.jgit.api.errors.JGitInternalException; +import org.eclipse.jgit.api.errors.NoHeadException; import org.eclipse.jgit.api.errors.RefAlreadyExistsException; import org.eclipse.jgit.api.errors.RefNotFoundException; import org.eclipse.jgit.internal.JGitText; @@ -121,6 +122,10 @@ public class RenameBranchCommand extends GitCommand { fullOldName = ref.getName(); } else { fullOldName = repo.getFullBranch(); + if (fullOldName == null) { + throw new NoHeadException( + JGitText.get().invalidRepositoryStateNoHead); + } if (ObjectId.isId(fullOldName)) throw new DetachedHeadException(); } diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java index b03038b06..6680564ad 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java @@ -104,6 +104,7 @@ public class JGitText extends TranslationBundle { /***/ public String cannotBeRecursiveWhenTreesAreIncluded; /***/ public String cannotChangeActionOnComment; /***/ public String cannotChangeToComment; + /***/ public String cannotCheckoutFromUnbornBranch; /***/ public String cannotCheckoutOursSwitchBranch; /***/ public String cannotCombineSquashWithNoff; /***/ public String cannotCombineTreeFilterWithRevFilter; @@ -411,6 +412,7 @@ public class JGitText extends TranslationBundle { /***/ public String invalidURL; /***/ public String invalidWildcards; /***/ public String invalidRefSpec; + /***/ public String invalidRepositoryStateNoHead; /***/ public String invalidWindowSize; /***/ public String isAStaticFlagAndHasNorevWalkInstance; /***/ public String JRELacksMD5Implementation; diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java index e7005c247..4c40538b6 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java @@ -90,6 +90,7 @@ import org.eclipse.jgit.lib.Ref; import org.eclipse.jgit.lib.Ref.Storage; import org.eclipse.jgit.lib.RefDatabase; import org.eclipse.jgit.lib.ReflogEntry; +import org.eclipse.jgit.lib.ReflogReader; import org.eclipse.jgit.revwalk.ObjectWalk; import org.eclipse.jgit.revwalk.RevObject; import org.eclipse.jgit.revwalk.RevWalk; @@ -592,7 +593,11 @@ public class GC { * @throws IOException */ private Set listRefLogObjects(Ref ref, long minTime) throws IOException { - List rlEntries = repo.getReflogReader(ref.getName()) + ReflogReader reflogReader = repo.getReflogReader(ref.getName()); + if (reflogReader == null) { + return Collections.emptySet(); + } + List rlEntries = reflogReader .getReverseEntries(); if (rlEntries == null || rlEntries.isEmpty()) return Collections. emptySet(); @@ -635,10 +640,7 @@ public class GC { */ private Set listNonHEADIndexObjects() throws CorruptObjectException, IOException { - try { - if (repo.getIndexFile() == null) - return Collections.emptySet(); - } catch (NoWorkTreeException e) { + if (repo.isBare()) { return Collections.emptySet(); } try (TreeWalk treeWalk = new TreeWalk(repo)) { diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefRename.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefRename.java index 05eb31183..59f852b8c 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefRename.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefRename.java @@ -170,7 +170,7 @@ public abstract class RefRename { */ protected boolean needToUpdateHEAD() throws IOException { Ref head = source.getRefDatabase().getRef(Constants.HEAD); - if (head.isSymbolic()) { + if (head != null && head.isSymbolic()) { head = head.getTarget(); return head.getName().equals(source.getName()); } diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java index 8d512ccb2..c91f2dab7 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java @@ -64,6 +64,8 @@ import java.util.Map; import java.util.Set; import java.util.concurrent.atomic.AtomicInteger; +import org.eclipse.jgit.annotations.NonNull; +import org.eclipse.jgit.annotations.Nullable; import org.eclipse.jgit.attributes.AttributesNodeProvider; import org.eclipse.jgit.dircache.DirCache; import org.eclipse.jgit.errors.AmbiguousObjectException; @@ -138,6 +140,7 @@ public abstract class Repository implements AutoCloseable { } /** @return listeners observing only events on this repository. */ + @NonNull public ListenerList getListenerList() { return myListeners; } @@ -182,7 +185,16 @@ public abstract class Repository implements AutoCloseable { */ public abstract void create(boolean bare) throws IOException; - /** @return local metadata directory; null if repository isn't local. */ + /** + * @return local metadata directory; {@code null} if repository isn't local. + */ + /* + * TODO This method should be annotated as Nullable, because in some + * specific configurations metadata is not located in the local file system + * (for example in memory databases). In "usual" repositories this + * annotation would only cause compiler errors at places where the actual + * directory can never be null. + */ public File getDirectory() { return gitDir; } @@ -190,24 +202,29 @@ public abstract class Repository implements AutoCloseable { /** * @return the object database which stores this repository's data. */ + @NonNull public abstract ObjectDatabase getObjectDatabase(); /** @return a new inserter to create objects in {@link #getObjectDatabase()} */ + @NonNull public ObjectInserter newObjectInserter() { return getObjectDatabase().newInserter(); } /** @return a new reader to read objects from {@link #getObjectDatabase()} */ + @NonNull public ObjectReader newObjectReader() { return getObjectDatabase().newReader(); } /** @return the reference database which stores the reference namespace. */ + @NonNull public abstract RefDatabase getRefDatabase(); /** * @return the configuration of this repository */ + @NonNull public abstract StoredConfig getConfig(); /** @@ -217,11 +234,20 @@ public abstract class Repository implements AutoCloseable { * instance for each use. * @since 4.2 */ + @NonNull public abstract AttributesNodeProvider createAttributesNodeProvider(); /** - * @return the used file system abstraction + * @return the used file system abstraction, or or {@code null} if + * repository isn't local. + */ + /* + * TODO This method should be annotated as Nullable, because in some + * specific configurations metadata is not located in the local file system + * (for example in memory databases). In "usual" repositories this + * annotation would only cause compiler errors at places where the actual + * directory can never be null. */ public FS getFS() { return fs; @@ -255,6 +281,7 @@ public abstract class Repository implements AutoCloseable { * @throws IOException * the object store cannot be accessed. */ + @NonNull public ObjectLoader open(final AnyObjectId objectId) throws MissingObjectException, IOException { return getObjectDatabase().open(objectId); @@ -282,6 +309,7 @@ public abstract class Repository implements AutoCloseable { * @throws IOException * the object store cannot be accessed. */ + @NonNull public ObjectLoader open(AnyObjectId objectId, int typeHint) throws MissingObjectException, IncorrectObjectTypeException, IOException { @@ -300,6 +328,7 @@ public abstract class Repository implements AutoCloseable { * a symbolic ref was passed in and could not be resolved back * to the base ref, as the symbolic ref could not be read. */ + @NonNull public RefUpdate updateRef(final String ref) throws IOException { return updateRef(ref, false); } @@ -318,6 +347,7 @@ public abstract class Repository implements AutoCloseable { * a symbolic ref was passed in and could not be resolved back * to the base ref, as the symbolic ref could not be read. */ + @NonNull public RefUpdate updateRef(final String ref, final boolean detach) throws IOException { return getRefDatabase().newUpdate(ref, detach); } @@ -334,6 +364,7 @@ public abstract class Repository implements AutoCloseable { * the rename could not be performed. * */ + @NonNull public RefRename renameRef(final String fromRef, final String toRef) throws IOException { return getRefDatabase().newRename(fromRef, toRef); } @@ -373,7 +404,8 @@ public abstract class Repository implements AutoCloseable { * * @param revstr * A git object references expression - * @return an ObjectId or null if revstr can't be resolved to any ObjectId + * @return an ObjectId or {@code null} if revstr can't be resolved to any + * ObjectId * @throws AmbiguousObjectException * {@code revstr} contains an abbreviated ObjectId and this * repository contains more than one object which match to the @@ -387,6 +419,7 @@ public abstract class Repository implements AutoCloseable { * @throws IOException * on serious errors */ + @Nullable public ObjectId resolve(final String revstr) throws AmbiguousObjectException, IncorrectObjectTypeException, RevisionSyntaxException, IOException { @@ -408,10 +441,12 @@ public abstract class Repository implements AutoCloseable { * expects a branch or revision id. * * @param revstr - * @return object id or ref name from resolved expression + * @return object id or ref name from resolved expression or {@code null} if + * given expression cannot be resolved * @throws AmbiguousObjectException * @throws IOException */ + @Nullable public String simplify(final String revstr) throws AmbiguousObjectException, IOException { try (RevWalk rw = new RevWalk(this)) { @@ -425,6 +460,7 @@ public abstract class Repository implements AutoCloseable { } } + @Nullable private Object resolve(final RevWalk rw, final String revstr) throws IOException { char[] revChars = revstr.toCharArray(); @@ -728,11 +764,13 @@ public abstract class Repository implements AutoCloseable { return true; } + @Nullable private RevObject parseSimple(RevWalk rw, String revstr) throws IOException { ObjectId id = resolveSimple(revstr); return id != null ? rw.parseAny(id) : null; } + @Nullable private ObjectId resolveSimple(final String revstr) throws IOException { if (ObjectId.isId(revstr)) return ObjectId.fromString(revstr); @@ -760,6 +798,7 @@ public abstract class Repository implements AutoCloseable { return null; } + @Nullable private String resolveReflogCheckout(int checkoutNo) throws IOException { ReflogReader reader = getReflogReader(Constants.HEAD); @@ -801,6 +840,7 @@ public abstract class Repository implements AutoCloseable { return rw.parseCommit(entry.getNewId()); } + @Nullable private ObjectId resolveAbbreviation(final String revstr) throws IOException, AmbiguousObjectException { AbbreviatedObjectId id = AbbreviatedObjectId.fromString(revstr); @@ -837,11 +877,13 @@ public abstract class Repository implements AutoCloseable { getRefDatabase().close(); } + @NonNull @SuppressWarnings("nls") public String toString() { String desc; - if (getDirectory() != null) - desc = getDirectory().getPath(); + File directory = getDirectory(); + if (directory != null) + desc = directory.getPath(); else desc = getClass().getSimpleName() + "-" //$NON-NLS-1$ + System.identityHashCode(this); @@ -861,10 +903,12 @@ public abstract class Repository implements AutoCloseable { * current ObjectId in hexadecimal string format. * * @return name of current branch (for example {@code 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. + * an ObjectId in hex format if the current branch is detached, or + * {@code null} if the repository is corrupt and has no HEAD + * reference. * @throws IOException */ + @Nullable public String getFullBranch() throws IOException { Ref head = getRef(Constants.HEAD); if (head == null) @@ -883,16 +927,17 @@ public abstract class Repository implements AutoCloseable { * leading prefix {@code refs/heads/} is removed from the reference before * it is returned to the caller. * - * @return name of current branch (for example {@code master}), an - * ObjectId in hex format if the current branch is detached, - * or null if the repository is corrupt and has no HEAD reference. + * @return name of current branch (for example {@code master}), an ObjectId + * in hex format if the current branch is detached, or {@code null} + * if the repository is corrupt and has no HEAD reference. * @throws IOException */ + @Nullable public String getBranch() throws IOException { String name = getFullBranch(); if (name != null) return shortenRefName(name); - return name; + return null; } /** @@ -905,6 +950,7 @@ public abstract class Repository implements AutoCloseable { * * @return unmodifiable collection of other known objects. */ + @NonNull public Set getAdditionalHaves() { return Collections.emptySet(); } @@ -916,9 +962,10 @@ public abstract class Repository implements AutoCloseable { * the name of the ref to lookup. May be a short-hand form, e.g. * "master" which is is automatically expanded to * "refs/heads/master" if "refs/heads/master" already exists. - * @return the Ref with the given name, or null if it does not exist + * @return the Ref with the given name, or {@code null} if it does not exist * @throws IOException */ + @Nullable public Ref getRef(final String name) throws IOException { return getRefDatabase().getRef(name); } @@ -926,6 +973,7 @@ public abstract class Repository implements AutoCloseable { /** * @return mutable map of all known refs (heads, tags, remotes). */ + @NonNull public Map getAllRefs() { try { return getRefDatabase().getRefs(RefDatabase.ALL); @@ -939,6 +987,7 @@ public abstract class Repository implements AutoCloseable { * of the entry contains the ref with the full tag name * ("refs/tags/v1.0"). */ + @NonNull public Map getTags() { try { return getRefDatabase().getRefs(Constants.R_TAGS); @@ -960,6 +1009,7 @@ public abstract class Repository implements AutoCloseable { * will be true and getPeeledObjectId will contain the peeled object * (or null). */ + @NonNull public Ref peel(final Ref ref) { try { return getRefDatabase().peel(ref); @@ -974,6 +1024,7 @@ public abstract class Repository implements AutoCloseable { /** * @return a map with all objects referenced by a peeled ref. */ + @NonNull public Map> getAllRefsByPeeledObjectId() { Map allRefs = getAllRefs(); Map> ret = new HashMap>(allRefs.size()); @@ -998,11 +1049,13 @@ public abstract class Repository implements AutoCloseable { } /** - * @return the index file location + * @return the index file location or {@code null} if repository isn't + * local. * @throws NoWorkTreeException * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @NonNull public File getIndexFile() throws NoWorkTreeException { if (isBare()) throw new NoWorkTreeException(); @@ -1027,6 +1080,7 @@ public abstract class Repository implements AutoCloseable { * the index file is using a format or extension that this * library does not support. */ + @NonNull public DirCache readDirCache() throws NoWorkTreeException, CorruptObjectException, IOException { return DirCache.read(this); @@ -1051,6 +1105,7 @@ public abstract class Repository implements AutoCloseable { * the index file is using a format or extension that this * library does not support. */ + @NonNull public DirCache lockDirCache() throws NoWorkTreeException, CorruptObjectException, IOException { // we want DirCache to inform us so that we can inform registered @@ -1076,6 +1131,7 @@ public abstract class Repository implements AutoCloseable { /** * @return an important state */ + @NonNull public RepositoryState getRepositoryState() { if (isBare() || getDirectory() == null) return RepositoryState.BARE; @@ -1218,6 +1274,7 @@ public abstract class Repository implements AutoCloseable { * @return normalized repository relative path or the empty * string if the file is not relative to the work directory. */ + @NonNull public static String stripWorkDir(File workDir, File file) { final String filePath = file.getPath(); final String workDirPath = workDir.getPath(); @@ -1252,6 +1309,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @NonNull public File getWorkTree() throws NoWorkTreeException { if (isBare()) throw new NoWorkTreeException(); @@ -1275,6 +1333,7 @@ public abstract class Repository implements AutoCloseable { * * @return a more user friendly ref name */ + @NonNull public static String shortenRefName(String refName) { if (refName.startsWith(Constants.R_HEADS)) return refName.substring(Constants.R_HEADS.length()); @@ -1290,9 +1349,10 @@ public abstract class Repository implements AutoCloseable { * @return the remote branch name part of refName, i.e. without * the refs/remotes/<remote> prefix, if * refName represents a remote tracking branch; - * otherwise null. + * otherwise {@code null}. * @since 3.4 */ + @Nullable public String shortenRemoteBranchName(String refName) { for (String remote : getRemoteNames()) { String remotePrefix = Constants.R_REMOTES + remote + "/"; //$NON-NLS-1$ @@ -1307,9 +1367,10 @@ public abstract class Repository implements AutoCloseable { * @return the remote name part of refName, i.e. without the * refs/remotes/<remote> prefix, if * refName represents a remote tracking branch; - * otherwise null. + * otherwise {@code null}. * @since 3.4 */ + @Nullable public String getRemoteName(String refName) { for (String remote : getRemoteNames()) { String remotePrefix = Constants.R_REMOTES + remote + "/"; //$NON-NLS-1$ @@ -1321,12 +1382,13 @@ public abstract class Repository implements AutoCloseable { /** * @param refName - * @return a {@link ReflogReader} for the supplied refname, or null if the - * named ref does not exist. + * @return a {@link ReflogReader} for the supplied refname, or {@code null} + * if the named ref does not exist. * @throws IOException * the ref could not be accessed. * @since 3.0 */ + @Nullable public abstract ReflogReader getReflogReader(String refName) throws IOException; @@ -1342,6 +1404,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public String readMergeCommitMsg() throws IOException, NoWorkTreeException { return readCommitMsgFile(Constants.MERGE_MSG); } @@ -1376,6 +1439,7 @@ public abstract class Repository implements AutoCloseable { * See {@link #isBare()}. * @since 4.0 */ + @Nullable public String readCommitEditMsg() throws IOException, NoWorkTreeException { return readCommitMsgFile(Constants.COMMIT_EDITMSG); } @@ -1410,6 +1474,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public List readMergeHeads() throws IOException, NoWorkTreeException { if (isBare() || getDirectory() == null) throw new NoWorkTreeException(); @@ -1453,6 +1518,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public ObjectId readCherryPickHead() throws IOException, NoWorkTreeException { if (isBare() || getDirectory() == null) @@ -1476,6 +1542,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public ObjectId readRevertHead() throws IOException, NoWorkTreeException { if (isBare() || getDirectory() == null) throw new NoWorkTreeException(); @@ -1541,6 +1608,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public ObjectId readOrigHead() throws IOException, NoWorkTreeException { if (isBare() || getDirectory() == null) throw new NoWorkTreeException(); @@ -1561,6 +1629,7 @@ public abstract class Repository implements AutoCloseable { * if this is bare, which implies it has no working directory. * See {@link #isBare()}. */ + @Nullable public String readSquashCommitMsg() throws IOException { return readCommitMsgFile(Constants.SQUASH_MSG); } @@ -1582,6 +1651,7 @@ public abstract class Repository implements AutoCloseable { writeCommitMsg(squashMsgFile, msg); } + @Nullable private String readCommitMsgFile(String msgFilename) throws IOException { if (isBare() || getDirectory() == null) throw new NoWorkTreeException(); @@ -1615,9 +1685,11 @@ public abstract class Repository implements AutoCloseable { * Read a file from the git directory. * * @param filename - * @return the raw contents or null if the file doesn't exist or is empty + * @return the raw contents or {@code null} if the file doesn't exist or is + * empty * @throws IOException */ + @Nullable private byte[] readGitDirectoryFile(String filename) throws IOException { File file = new File(getDirectory(), filename); try { @@ -1674,6 +1746,7 @@ public abstract class Repository implements AutoCloseable { * @throws IOException * @since 3.2 */ + @NonNull public List readRebaseTodo(String path, boolean includeComments) throws IOException { @@ -1703,6 +1776,7 @@ public abstract class Repository implements AutoCloseable { * @return the names of all known remotes * @since 3.4 */ + @NonNull public Set getRemoteNames() { return getConfig() .getSubsections(ConfigConstants.CONFIG_REMOTE_SECTION); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java b/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java index 8a6343c3c..de08e4b6a 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java @@ -786,11 +786,6 @@ public class ResolveMerger extends ThreeWayMerger { private File writeMergedFile(MergeResult result) throws FileNotFoundException, IOException { File workTree = db.getWorkTree(); - if (workTree == null) - // TODO: This should be handled by WorkingTreeIterators which - // support write operations - throw new UnsupportedOperationException(); - FS fs = db.getFS(); File of = new File(workTree, tw.getPathString()); File parentFolder = of.getParentFile(); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/HMACSHA1NonceGenerator.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/HMACSHA1NonceGenerator.java index 7e9434a0f..622680a27 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/HMACSHA1NonceGenerator.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/HMACSHA1NonceGenerator.java @@ -42,6 +42,7 @@ */ package org.eclipse.jgit.transport; +import java.io.File; import java.io.UnsupportedEncodingException; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; @@ -85,12 +86,16 @@ public class HMACSHA1NonceGenerator implements NonceGenerator { public synchronized String createNonce(Repository repo, long timestamp) throws IllegalStateException { String path; - if (repo instanceof DfsRepository) + if (repo instanceof DfsRepository) { path = ((DfsRepository) repo).getDescription().getRepositoryName(); - else if (repo.getDirectory() != null) - path = repo.getDirectory().getPath(); - else - throw new IllegalStateException(); + } else { + File directory = repo.getDirectory(); + if (directory != null) { + path = directory.getPath(); + } else { + throw new IllegalStateException(); + } + } String input = path + ":" + String.valueOf(timestamp); //$NON-NLS-1$ byte[] rawHmac; diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportAmazonS3.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportAmazonS3.java index 7729c11ff..23c506b12 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportAmazonS3.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportAmazonS3.java @@ -148,8 +148,9 @@ public class TransportAmazonS3 extends HttpTransport implements WalkTransport { super(local, uri); Properties props = loadProperties(); - if (!props.containsKey("tmpdir") && local.getDirectory() != null) //$NON-NLS-1$ - props.put("tmpdir", local.getDirectory().getPath()); //$NON-NLS-1$ + File directory = local.getDirectory(); + if (!props.containsKey("tmpdir") && directory != null) //$NON-NLS-1$ + props.put("tmpdir", directory.getPath()); //$NON-NLS-1$ s3 = new AmazonS3(props); bucket = uri.getHost(); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportGitSsh.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportGitSsh.java index b27fa0d6b..52f0f0456 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportGitSsh.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportGitSsh.java @@ -46,6 +46,7 @@ package org.eclipse.jgit.transport; +import java.io.File; import java.io.IOException; import java.io.InputStream; import java.text.MessageFormat; @@ -235,9 +236,10 @@ public class TransportGitSsh extends SshTransport implements PackTransport { ProcessBuilder pb = new ProcessBuilder(); pb.command(args); - if (local.getDirectory() != null) + File directory = local.getDirectory(); + if (directory != null) pb.environment().put(Constants.GIT_DIR_KEY, - local.getDirectory().getPath()); + directory.getPath()); try { return pb.start(); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_Win32_Cygwin.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_Win32_Cygwin.java index 28d628b34..ec581b397 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_Win32_Cygwin.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_Win32_Cygwin.java @@ -168,6 +168,9 @@ public class FS_Win32_Cygwin extends FS_Win32 { @Override public File findHook(Repository repository, String hookName) { final File gitdir = repository.getDirectory(); + if (gitdir == null) { + return null; + } final Path hookPath = gitdir.toPath().resolve(Constants.HOOKS) .resolve(hookName); if (Files.isExecutable(hookPath))