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@ -18,10 +18,13 @@ import static java.util.stream.Collectors.toList;
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.text.MessageFormat; |
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import java.text.ParseException; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Locale; |
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@ -50,6 +53,7 @@ import org.eclipse.jgit.lib.ProgressMonitor;
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import org.eclipse.jgit.lib.Ref; |
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import org.eclipse.jgit.lib.RefDatabase; |
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import org.eclipse.jgit.lib.RefUpdate; |
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import org.eclipse.jgit.lib.ReflogEntry; |
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import org.eclipse.jgit.lib.ReflogReader; |
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import org.eclipse.jgit.lib.Repository; |
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import org.eclipse.jgit.lib.StoredConfig; |
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@ -173,20 +177,17 @@ public class FileRepository extends Repository {
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String reftype = repoConfig.getString( |
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ConfigConstants.CONFIG_EXTENSIONS_SECTION, null, |
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ConfigConstants.CONFIG_KEY_REFSTORAGE); |
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ConfigConstants.CONFIG_KEY_REF_STORAGE); |
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if (repositoryFormatVersion >= 1 && reftype != null) { |
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if (StringUtils.equalsIgnoreCase(reftype, |
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ConfigConstants.CONFIG_REFSTORAGE_REFTABLE)) { |
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refs = new FileReftableDatabase(this, |
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new File(getDirectory(), "refs")); //$NON-NLS-1$
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ConfigConstants.CONFIG_REF_STORAGE_REFTABLE)) { |
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refs = new FileReftableDatabase(this); |
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} else if (StringUtils.equalsIgnoreCase(reftype, |
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ConfigConstants.CONFIG_REFSTORAGE_REFTREE)) { |
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refs = new RefTreeDatabase(this, new RefDirectory(this)); |
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} else { |
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throw new IOException(JGitText.get().unknownRepositoryFormat); |
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} |
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} else if (FileReftableDatabase.isReftable(getDirectory())) { |
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refs = new FileReftableDatabase(this, new File(getDirectory(), "refs")); //$NON-NLS-1$
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} else { |
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refs = new RefDirectory(this); |
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} |
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@ -610,15 +611,18 @@ public class FileRepository extends Repository {
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* Converts the RefDatabase from reftable to RefDirectory. This operation is |
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* not atomic. |
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* |
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* @param writeLogs |
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* whether to write reflogs |
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* @param backup |
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* whether to rename or delete the old storage files. If set to |
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* true, the reftable list is left in "refs.old", and the |
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* reftable/ dir is left alone. If set to false, the reftable/ |
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* dir is removed, and "refs" file is removed. |
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* {@code true}, the reftable list is left in {@code refs.old}, |
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* and the {@code reftable/} dir is left alone. If set to |
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* {@code false}, the {@code reftable/} dir is removed, and |
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* {@code refs} file is removed. |
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* @throws IOException |
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* on IO problem |
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*/ |
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void convertToPackedRefs(boolean backup) throws IOException { |
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void convertToPackedRefs(boolean writeLogs, boolean backup) throws IOException { |
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List<Ref> all = refs.getRefs(); |
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File packedRefs = new File(getDirectory(), Constants.PACKED_REFS); |
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if (packedRefs.exists()) { |
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@ -627,26 +631,26 @@ public class FileRepository extends Repository {
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} |
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File refsFile = new File(getDirectory(), "refs"); //$NON-NLS-1$
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refs.close(); |
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if (backup) { |
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File refsOld = new File(getDirectory(), "refs.old"); //$NON-NLS-1$
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if (refsOld.exists()) { |
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throw new IOException(MessageFormat.format( |
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JGitText.get().fileAlreadyExists, |
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"refs.old")); //$NON-NLS-1$
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} |
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FileUtils.rename(refsFile, refsOld); |
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} else { |
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refsFile.delete(); |
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} |
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File refsHeadsFile = new File(refsFile, "heads");//$NON-NLS-1$
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File headFile = new File(getDirectory(), Constants.HEAD); |
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FileReftableDatabase oldDb = (FileReftableDatabase) refs; |
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// Remove the dummy files that ensure compatibility with older git
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// versions (see convertToReftable). First make room for refs/heads/
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refsHeadsFile.delete(); |
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// RefDirectory wants to create the refs/ directory from scratch, so
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// remove that too.
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refsFile.delete(); |
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// remove HEAD so its previous invalid value doesn't cause issues.
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headFile.delete(); |
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// This is not atomic, but there is no way to instantiate a RefDirectory
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// that is disconnected from the current repo.
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refs = new RefDirectory(this); |
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RefDirectory refDir = new RefDirectory(this); |
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refs = refDir; |
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refs.create(); |
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ReflogWriter logWriter = refDir.newLogWriter(true); |
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List<Ref> symrefs = new ArrayList<>(); |
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BatchRefUpdate bru = refs.newBatchUpdate(); |
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for (Ref r : all) { |
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@ -656,6 +660,15 @@ public class FileRepository extends Repository {
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bru.addCommand(new ReceiveCommand(ObjectId.zeroId(), |
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r.getObjectId(), r.getName())); |
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} |
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if (writeLogs) { |
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List<ReflogEntry> logs = oldDb.getReflogReader(r.getName()) |
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.getReverseEntries(); |
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Collections.reverse(logs); |
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for (ReflogEntry e : logs) { |
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logWriter.log(r.getName(), e); |
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} |
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} |
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} |
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try (RevWalk rw = new RevWalk(this)) { |
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@ -691,24 +704,39 @@ public class FileRepository extends Repository {
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FileUtils.delete(reftableDir, |
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FileUtils.RECURSIVE | FileUtils.IGNORE_ERRORS); |
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} |
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repoConfig.unset(ConfigConstants.CONFIG_EXTENSIONS_SECTION, null, |
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ConfigConstants.CONFIG_KEY_REFSTORAGE); |
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ConfigConstants.CONFIG_KEY_REF_STORAGE); |
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repoConfig.save(); |
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} |
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/** |
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* Converts the RefDatabase from RefDirectory to reftable. This operation is |
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* not atomic. |
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* |
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* @param writeLogs |
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* whether to write reflogs |
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* @param backup |
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* whether to rename or delete the old storage files. If set to |
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* {@code true}, the loose refs are left in {@code refs.old}, the |
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* packed-refs in {@code packed-refs.old} and reflogs in |
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* {@code refs.old/}. HEAD is left in {@code HEAD.old} and also |
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* {@code .log} is appended to additional refs. If set to |
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* {@code false}, the {@code refs/} and {@code logs/} directories |
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* and {@code HEAD} and additional symbolic refs are removed. |
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* @throws IOException |
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* on IO problem |
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*/ |
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@SuppressWarnings("nls") |
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void convertToReftable(boolean writeLogs, boolean backup) |
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throws IOException { |
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File newRefs = new File(getDirectory(), "refs.new"); |
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File reftableDir = new File(getDirectory(), Constants.REFTABLE); |
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File headFile = new File(getDirectory(), Constants.HEAD); |
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if (reftableDir.exists() && reftableDir.listFiles().length > 0) { |
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throw new IOException(JGitText.get().reftableDirExists); |
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} |
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// Ignore return value, as it is tied to temporary newRefs file.
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FileReftableDatabase.convertFrom(this, newRefs, writeLogs); |
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FileReftableDatabase.convertFrom(this, writeLogs); |
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File refsFile = new File(getDirectory(), "refs"); |
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@ -716,7 +744,6 @@ public class FileRepository extends Repository {
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File packedRefs = new File(getDirectory(), Constants.PACKED_REFS); |
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File logsDir = new File(getDirectory(), Constants.LOGS); |
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List<String> additional = getRefDatabase().getAdditionalRefs().stream() |
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.map(Ref::getName).collect(toList()); |
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additional.add(Constants.HEAD); |
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@ -735,7 +762,8 @@ public class FileRepository extends Repository {
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new File(getDirectory(), r + ".old")); |
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} |
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} else { |
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packedRefs.delete(); // ignore return value.
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FileUtils.delete(packedRefs, FileUtils.SKIP_MISSING); |
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FileUtils.delete(headFile); |
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FileUtils.delete(logsDir, FileUtils.RECURSIVE); |
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FileUtils.delete(refsFile, FileUtils.RECURSIVE); |
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for (String r : additional) { |
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@ -743,16 +771,26 @@ public class FileRepository extends Repository {
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} |
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} |
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// Put new data.
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FileUtils.rename(newRefs, refsFile); |
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FileUtils.mkdir(refsFile, true); |
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refs.close(); |
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refs = new FileReftableDatabase(this, refsFile); |
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// By putting in a dummy HEAD, old versions of Git still detect a repo
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// (that they can't read)
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try (OutputStream os = new FileOutputStream(headFile)) { |
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os.write(Constants.encodeASCII("ref: refs/heads/.invalid")); |
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} |
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// Some tools might write directly into .git/refs/heads/BRANCH. By
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// putting a file here, this fails spectacularly.
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FileUtils.createNewFile(new File(refsFile, "heads")); |
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repoConfig.setString(ConfigConstants.CONFIG_EXTENSIONS_SECTION, null, |
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ConfigConstants.CONFIG_KEY_REFSTORAGE, |
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ConfigConstants.CONFIG_REFSTORAGE_REFTABLE); |
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ConfigConstants.CONFIG_KEY_REF_STORAGE, |
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ConfigConstants.CONFIG_REF_STORAGE_REFTABLE); |
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repoConfig.setLong(ConfigConstants.CONFIG_CORE_SECTION, null, |
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ConfigConstants.CONFIG_KEY_REPO_FORMAT_VERSION, 1); |
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repoConfig.save(); |
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refs.close(); |
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refs = new FileReftableDatabase(this); |
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} |
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/** |
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@ -775,7 +813,7 @@ public class FileRepository extends Repository {
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} |
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} else if (format.equals("refdir")) {//$NON-NLS-1$
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if (refs instanceof FileReftableDatabase) { |
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convertToPackedRefs(backup); |
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convertToPackedRefs(writeLogs, backup); |
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} |
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} else { |
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throw new IOException(MessageFormat |
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