From 30f9d25d77ccb5cd978d4cf8fa389ec819e90e95 Mon Sep 17 00:00:00 2001
From: Philip L. McMahon <philip.l.mcmahon@gmail.com>
Date: Fri, 27 Jan 2012 02:02:19 -0500
Subject: [PATCH] Correct update of HEAD symbolic reference when target is a tag.
---
src/com/gitblit/utils/JGitUtils.java | 538 ++++++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 476 insertions(+), 62 deletions(-)
diff --git a/src/com/gitblit/utils/JGitUtils.java b/src/com/gitblit/utils/JGitUtils.java
index 03a5d00..05c0852 100644
--- a/src/com/gitblit/utils/JGitUtils.java
+++ b/src/com/gitblit/utils/JGitUtils.java
@@ -21,6 +21,7 @@
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
+import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@@ -36,6 +37,8 @@
import org.eclipse.jgit.api.CloneCommand;
import org.eclipse.jgit.api.FetchCommand;
import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.ResetCommand;
+import org.eclipse.jgit.api.ResetCommand.ResetType;
import org.eclipse.jgit.diff.DiffEntry;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;
import org.eclipse.jgit.diff.DiffFormatter;
@@ -44,23 +47,30 @@
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.errors.StopWalkException;
+import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryCache.FileKey;
import org.eclipse.jgit.lib.StoredConfig;
+import org.eclipse.jgit.lib.TreeFormatter;
import org.eclipse.jgit.revwalk.RevBlob;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevSort;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
+import org.eclipse.jgit.revwalk.filter.CommitTimeRevFilter;
import org.eclipse.jgit.revwalk.filter.RevFilter;
import org.eclipse.jgit.storage.file.FileRepository;
+import org.eclipse.jgit.transport.CredentialsProvider;
import org.eclipse.jgit.transport.FetchResult;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.treewalk.TreeWalk;
@@ -91,6 +101,29 @@
static final Logger LOGGER = LoggerFactory.getLogger(JGitUtils.class);
/**
+ * Log an error message and exception.
+ *
+ * @param t
+ * @param repository
+ * if repository is not null it MUST be the {0} parameter in the
+ * pattern.
+ * @param pattern
+ * @param objects
+ */
+ private static void error(Throwable t, Repository repository, String pattern, Object... objects) {
+ List<Object> parameters = new ArrayList<Object>();
+ if (objects != null && objects.length > 0) {
+ for (Object o : objects) {
+ parameters.add(o);
+ }
+ }
+ if (repository != null) {
+ parameters.add(0, repository.getDirectory().getAbsolutePath());
+ }
+ LOGGER.error(MessageFormat.format(pattern, parameters.toArray()), t);
+ }
+
+ /**
* Returns the displayable name of the person in the form "Real Name <email
* address>". If the email address is empty, just "Real Name" is returned.
*
@@ -110,6 +143,15 @@
}
/**
+ * Encapsulates the result of cloning or pulling from a repository.
+ */
+ public static class CloneResult {
+ public String name;
+ public FetchResult fetchResult;
+ public boolean createdRepository;
+ }
+
+ /**
* Clone or Fetch a repository. If the local repository does not exist,
* clone is called. If the repository does exist, fetch is called. By
* default the clone/fetch retrieves the remote heads, tags, and notes.
@@ -117,33 +159,65 @@
* @param repositoriesFolder
* @param name
* @param fromUrl
- * @return FetchResult
+ * @return CloneResult
* @throws Exception
*/
- public static FetchResult cloneRepository(File repositoriesFolder, String name, String fromUrl)
+ public static CloneResult cloneRepository(File repositoriesFolder, String name, String fromUrl)
throws Exception {
- FetchResult result = null;
- if (!name.toLowerCase().endsWith(Constants.DOT_GIT_EXT)) {
- name += Constants.DOT_GIT_EXT;
+ return cloneRepository(repositoriesFolder, name, fromUrl, true, null);
+ }
+
+ /**
+ * Clone or Fetch a repository. If the local repository does not exist,
+ * clone is called. If the repository does exist, fetch is called. By
+ * default the clone/fetch retrieves the remote heads, tags, and notes.
+ *
+ * @param repositoriesFolder
+ * @param name
+ * @param fromUrl
+ * @param bare
+ * @param credentialsProvider
+ * @return CloneResult
+ * @throws Exception
+ */
+ public static CloneResult cloneRepository(File repositoriesFolder, String name, String fromUrl,
+ boolean bare, CredentialsProvider credentialsProvider) throws Exception {
+ CloneResult result = new CloneResult();
+ if (bare) {
+ // bare repository, ensure .git suffix
+ if (!name.toLowerCase().endsWith(Constants.DOT_GIT_EXT)) {
+ name += Constants.DOT_GIT_EXT;
+ }
+ } else {
+ // normal repository, strip .git suffix
+ if (name.toLowerCase().endsWith(Constants.DOT_GIT_EXT)) {
+ name = name.substring(0, name.indexOf(Constants.DOT_GIT_EXT));
+ }
}
+ result.name = name;
+
File folder = new File(repositoriesFolder, name);
if (folder.exists()) {
File gitDir = FileKey.resolve(new File(repositoriesFolder, name), FS.DETECTED);
FileRepository repository = new FileRepository(gitDir);
- result = fetchRepository(repository);
+ result.fetchResult = fetchRepository(credentialsProvider, repository);
repository.close();
} else {
CloneCommand clone = new CloneCommand();
- clone.setBare(true);
+ clone.setBare(bare);
clone.setCloneAllBranches(true);
clone.setURI(fromUrl);
clone.setDirectory(folder);
+ if (credentialsProvider != null) {
+ clone.setCredentialsProvider(credentialsProvider);
+ }
clone.call();
// Now we have to fetch because CloneCommand doesn't fetch
// refs/notes nor does it allow manual RefSpec.
File gitDir = FileKey.resolve(new File(repositoriesFolder, name), FS.DETECTED);
FileRepository repository = new FileRepository(gitDir);
- result = fetchRepository(repository);
+ result.createdRepository = true;
+ result.fetchResult = fetchRepository(credentialsProvider, repository);
repository.close();
}
return result;
@@ -153,13 +227,14 @@
* Fetch updates from the remote repository. If refSpecs is unspecifed,
* remote heads, tags, and notes are retrieved.
*
+ * @param credentialsProvider
* @param repository
* @param refSpecs
* @return FetchResult
* @throws Exception
*/
- public static FetchResult fetchRepository(Repository repository, RefSpec... refSpecs)
- throws Exception {
+ public static FetchResult fetchRepository(CredentialsProvider credentialsProvider,
+ Repository repository, RefSpec... refSpecs) throws Exception {
Git git = new Git(repository);
FetchCommand fetch = git.fetch();
List<RefSpec> specs = new ArrayList<RefSpec>();
@@ -170,8 +245,32 @@
} else {
specs.addAll(Arrays.asList(refSpecs));
}
+ if (credentialsProvider != null) {
+ fetch.setCredentialsProvider(credentialsProvider);
+ }
fetch.setRefSpecs(specs);
- FetchResult result = fetch.call();
+ FetchResult fetchRes = fetch.call();
+ return fetchRes;
+ }
+
+ /**
+ * Reset HEAD to the latest remote tracking commit.
+ *
+ * @param repository
+ * @param remoteRef
+ * the remote tracking reference (e.g. origin/master)
+ * @return Ref
+ * @throws Exception
+ */
+ public static Ref resetHEAD(Repository repository, String remoteRef) throws Exception {
+ if (!remoteRef.startsWith(Constants.R_REMOTES)) {
+ remoteRef = Constants.R_REMOTES + remoteRef;
+ }
+ Git git = new Git(repository);
+ ResetCommand reset = git.reset();
+ reset.setMode(ResetType.SOFT);
+ reset.setRef(remoteRef);
+ Ref result = reset.call();
return result;
}
@@ -206,7 +305,7 @@
}
list.addAll(getRepositoryList(repositoriesFolder.getAbsolutePath(), repositoriesFolder,
exportAll, searchSubfolders));
- Collections.sort(list);
+ StringUtils.sortRepositorynames(list);
return list;
}
@@ -263,19 +362,24 @@
if (!hasCommits(repository)) {
return null;
}
- if (StringUtils.isEmpty(branch)) {
- branch = Constants.HEAD;
- }
RevCommit commit = null;
try {
+ // resolve branch
+ ObjectId branchObject;
+ if (StringUtils.isEmpty(branch)) {
+ branchObject = getDefaultBranch(repository);
+ } else {
+ branchObject = repository.resolve(branch);
+ }
+
RevWalk walk = new RevWalk(repository);
walk.sort(RevSort.REVERSE);
- RevCommit head = walk.parseCommit(repository.resolve(branch));
+ RevCommit head = walk.parseCommit(branchObject);
walk.markStart(head);
commit = walk.next();
walk.dispose();
} catch (Throwable t) {
- LOGGER.error("Failed to determine first commit", t);
+ error(t, repository, "{0} failed to determine first commit");
}
return commit;
}
@@ -310,7 +414,7 @@
* @return true if the repository has commits
*/
public static boolean hasCommits(Repository repository) {
- if (repository != null && repository.getDirectory().exists()) {
+ if (repository != null && repository.getDirectory().exists()) {
return (new File(repository.getDirectory(), "objects").list().length > 2)
|| (new File(repository.getDirectory(), "objects/pack").list().length > 0);
}
@@ -324,7 +428,7 @@
*
* @param repository
* @param branch
- * if unspecified, HEAD is assumed.
+ * if unspecified, all branches are checked.
* @return
*/
public static Date getLastChange(Repository repository, String branch) {
@@ -337,8 +441,23 @@
return new Date(repository.getDirectory().lastModified());
}
if (StringUtils.isEmpty(branch)) {
- branch = Constants.HEAD;
+ List<RefModel> branchModels = getLocalBranches(repository, true, -1);
+ if (branchModels.size() > 0) {
+ // find most recent branch update
+ Date lastChange = new Date(0);
+ for (RefModel branchModel : branchModels) {
+ if (branchModel.getDate().after(lastChange)) {
+ lastChange = branchModel.getDate();
+ }
+ }
+ return lastChange;
+ } else {
+ // try to find head
+ branch = Constants.HEAD;
+ }
}
+
+ // lookup specified branch
RevCommit commit = getCommit(repository, branch);
return getCommitDate(commit);
}
@@ -347,10 +466,26 @@
* Retrieves a Java Date from a Git commit.
*
* @param commit
- * @return date of the commit
+ * @return date of the commit or Date(0) if the commit is null
*/
public static Date getCommitDate(RevCommit commit) {
+ if (commit == null) {
+ return new Date(0);
+ }
return new Date(commit.getCommitTime() * 1000L);
+ }
+
+ /**
+ * Retrieves a Java Date from a Git commit.
+ *
+ * @param commit
+ * @return date of the commit or Date(0) if the commit is null
+ */
+ public static Date getAuthorDate(RevCommit commit) {
+ if (commit == null) {
+ return new Date(0);
+ }
+ return commit.getAuthorIdent().getWhen();
}
/**
@@ -368,16 +503,19 @@
}
RevCommit commit = null;
try {
+ // resolve object id
+ ObjectId branchObject;
if (StringUtils.isEmpty(objectId)) {
- objectId = Constants.HEAD;
+ branchObject = getDefaultBranch(repository);
+ } else {
+ branchObject = repository.resolve(objectId);
}
- ObjectId object = repository.resolve(objectId);
RevWalk walk = new RevWalk(repository);
- RevCommit rev = walk.parseCommit(object);
+ RevCommit rev = walk.parseCommit(branchObject);
commit = rev;
walk.dispose();
} catch (Throwable t) {
- LOGGER.error("Failed to get commit " + objectId, t);
+ error(t, repository, "{0} failed to get commit {1}", objectId);
}
return commit;
}
@@ -398,7 +536,7 @@
byte[] content = null;
try {
if (tree == null) {
- ObjectId object = repository.resolve(Constants.HEAD);
+ ObjectId object = getDefaultBranch(repository);
RevCommit commit = rw.parseCommit(object);
tree = commit.getTree();
}
@@ -424,7 +562,7 @@
content = os.toByteArray();
}
} catch (Throwable t) {
- LOGGER.error("Can't find " + path + " in tree " + tree.name(), t);
+ error(t, repository, "{0} can't find {1} in tree {2}", path, tree.name());
} finally {
rw.dispose();
tw.release();
@@ -473,7 +611,7 @@
in.close();
content = os.toByteArray();
} catch (Throwable t) {
- LOGGER.error("Can't find blob " + objectId, t);
+ error(t, repository, "{0} can't find blob {1}", objectId);
} finally {
rw.dispose();
}
@@ -514,7 +652,7 @@
return list;
}
if (commit == null) {
- commit = getCommit(repository, Constants.HEAD);
+ commit = getCommit(repository, null);
}
final TreeWalk tw = new TreeWalk(repository);
try {
@@ -543,7 +681,7 @@
}
}
} catch (IOException e) {
- LOGGER.error("Failed to get files for commit " + commit.getName(), e);
+ error(e, repository, "{0} failed to get files for commit {1}", commit.getName());
} finally {
tw.release();
}
@@ -568,7 +706,7 @@
RevWalk rw = new RevWalk(repository);
try {
if (commit == null) {
- ObjectId object = repository.resolve(Constants.HEAD);
+ ObjectId object = getDefaultBranch(repository);
commit = rw.parseCommit(object);
}
@@ -602,7 +740,7 @@
}
}
} catch (Throwable t) {
- LOGGER.error("failed to determine files in commit!", t);
+ error(t, repository, "{0} failed to determine files in commit!");
} finally {
rw.dispose();
}
@@ -623,7 +761,7 @@
if (!hasCommits(repository)) {
return list;
}
- RevCommit commit = getCommit(repository, Constants.HEAD);
+ RevCommit commit = getCommit(repository, null);
final TreeWalk tw = new TreeWalk(repository);
try {
tw.addTree(commit.getTree());
@@ -645,7 +783,7 @@
list.add(getPathModel(tw, null, commit));
}
} catch (IOException e) {
- LOGGER.error("Failed to get documents for commit " + commit.getName(), e);
+ error(e, repository, "{0} failed to get documents for commit {1}", commit.getName());
} finally {
tw.release();
}
@@ -674,7 +812,7 @@
size = tw.getObjectReader().getObjectSize(tw.getObjectId(0), Constants.OBJ_BLOB);
}
} catch (Throwable t) {
- LOGGER.error("Failed to retrieve blob size", t);
+ error(t, null, "failed to retrieve blob size for " + tw.getPathString());
}
return new PathModel(name, tw.getPathString(), size, tw.getFileMode(0).getBits(),
commit.getName());
@@ -705,6 +843,45 @@
}
/**
+ * Returns a list of commits since the minimum date starting from the
+ * specified object id.
+ *
+ * @param repository
+ * @param objectId
+ * if unspecified, HEAD is assumed.
+ * @param minimumDate
+ * @return list of commits
+ */
+ public static List<RevCommit> getRevLog(Repository repository, String objectId, Date minimumDate) {
+ List<RevCommit> list = new ArrayList<RevCommit>();
+ if (!hasCommits(repository)) {
+ return list;
+ }
+ try {
+ // resolve branch
+ ObjectId branchObject;
+ if (StringUtils.isEmpty(objectId)) {
+ branchObject = getDefaultBranch(repository);
+ } else {
+ branchObject = repository.resolve(objectId);
+ }
+
+ RevWalk rw = new RevWalk(repository);
+ rw.markStart(rw.parseCommit(branchObject));
+ rw.setRevFilter(CommitTimeRevFilter.after(minimumDate));
+ Iterable<RevCommit> revlog = rw;
+ for (RevCommit rev : revlog) {
+ list.add(rev);
+ }
+ rw.dispose();
+ } catch (Throwable t) {
+ error(t, repository, "{0} failed to get {1} revlog for minimum date {2}", objectId,
+ minimumDate);
+ }
+ return list;
+ }
+
+ /**
* Returns a list of commits starting from HEAD and working backwards.
*
* @param repository
@@ -713,7 +890,7 @@
* @return list of commits
*/
public static List<RevCommit> getRevLog(Repository repository, int maxCount) {
- return getRevLog(repository, Constants.HEAD, 0, maxCount);
+ return getRevLog(repository, null, 0, maxCount);
}
/**
@@ -762,12 +939,16 @@
return list;
}
try {
+ // resolve branch
+ ObjectId branchObject;
if (StringUtils.isEmpty(objectId)) {
- objectId = Constants.HEAD;
+ branchObject = getDefaultBranch(repository);
+ } else {
+ branchObject = repository.resolve(objectId);
}
+
RevWalk rw = new RevWalk(repository);
- ObjectId object = repository.resolve(objectId);
- rw.markStart(rw.parseCommit(object));
+ rw.markStart(rw.parseCommit(branchObject));
if (!StringUtils.isEmpty(path)) {
TreeFilter filter = AndTreeFilter.create(
PathFilterGroup.createFromStrings(Collections.singleton(path)),
@@ -796,30 +977,53 @@
}
rw.dispose();
} catch (Throwable t) {
- LOGGER.error("Failed to get revlog", t);
+ error(t, repository, "{0} failed to get {1} revlog for path {2}", objectId, path);
}
return list;
}
/**
- * Enumeration of the search types.
+ * Returns a list of commits for the repository within the range specified
+ * by startRangeId and endRangeId. If the repository does not exist or is
+ * empty, an empty list is returned.
+ *
+ * @param repository
+ * @param startRangeId
+ * the first commit (not included in results)
+ * @param endRangeId
+ * the end commit (included in results)
+ * @return a list of commits
*/
- public static enum SearchType {
- AUTHOR, COMMITTER, COMMIT;
+ public static List<RevCommit> getRevLog(Repository repository, String startRangeId,
+ String endRangeId) {
+ List<RevCommit> list = new ArrayList<RevCommit>();
+ if (!hasCommits(repository)) {
+ return list;
+ }
+ try {
+ ObjectId endRange = repository.resolve(endRangeId);
+ ObjectId startRange = repository.resolve(startRangeId);
- public static SearchType forName(String name) {
- for (SearchType type : values()) {
- if (type.name().equalsIgnoreCase(name)) {
- return type;
- }
+ RevWalk rw = new RevWalk(repository);
+ rw.markStart(rw.parseCommit(endRange));
+ if (startRange.equals(ObjectId.zeroId())) {
+ // maybe this is a tag or an orphan branch
+ list.add(rw.parseCommit(endRange));
+ rw.dispose();
+ return list;
+ } else {
+ rw.markUninteresting(rw.parseCommit(startRange));
}
- return COMMIT;
- }
- @Override
- public String toString() {
- return name().toLowerCase();
+ Iterable<RevCommit> revlog = rw;
+ for (RevCommit rev : revlog) {
+ list.add(rev);
+ }
+ rw.dispose();
+ } catch (Throwable t) {
+ error(t, repository, "{0} failed to get revlog for {1}..{2}", startRangeId, endRangeId);
}
+ return list;
}
/**
@@ -840,7 +1044,7 @@
* @return matching list of commits
*/
public static List<RevCommit> searchRevlogs(Repository repository, String objectId,
- String value, final SearchType type, int offset, int maxCount) {
+ String value, final com.gitblit.Constants.SearchType type, int offset, int maxCount) {
final String lcValue = value.toLowerCase();
List<RevCommit> list = new ArrayList<RevCommit>();
if (maxCount == 0) {
@@ -850,9 +1054,14 @@
return list;
}
try {
+ // resolve branch
+ ObjectId branchObject;
if (StringUtils.isEmpty(objectId)) {
- objectId = Constants.HEAD;
+ branchObject = getDefaultBranch(repository);
+ } else {
+ branchObject = repository.resolve(objectId);
}
+
RevWalk rw = new RevWalk(repository);
rw.setRevFilter(new RevFilter() {
@@ -887,8 +1096,7 @@
}
});
- ObjectId object = repository.resolve(objectId);
- rw.markStart(rw.parseCommit(object));
+ rw.markStart(rw.parseCommit(branchObject));
Iterable<RevCommit> revlog = rw;
if (offset > 0) {
int count = 0;
@@ -911,9 +1119,100 @@
}
rw.dispose();
} catch (Throwable t) {
- LOGGER.error("Failed to search revlogs", t);
+ error(t, repository, "{0} failed to {1} search revlogs for {2}", type.name(), value);
}
return list;
+ }
+
+ /**
+ * Returns the default branch to use for a repository. Normally returns
+ * whatever branch HEAD points to, but if HEAD points to nothing it returns
+ * the most recently updated branch.
+ *
+ * @param repository
+ * @return the objectid of a branch
+ * @throws Exception
+ */
+ public static ObjectId getDefaultBranch(Repository repository) throws Exception {
+ ObjectId object = repository.resolve(Constants.HEAD);
+ if (object == null) {
+ // no HEAD
+ // perhaps non-standard repository, try local branches
+ List<RefModel> branchModels = getLocalBranches(repository, true, -1);
+ if (branchModels.size() > 0) {
+ // use most recently updated branch
+ RefModel branch = null;
+ Date lastDate = new Date(0);
+ for (RefModel branchModel : branchModels) {
+ if (branchModel.getDate().after(lastDate)) {
+ branch = branchModel;
+ lastDate = branch.getDate();
+ }
+ }
+ object = branch.getReferencedObjectId();
+ }
+ }
+ return object;
+ }
+
+ /**
+ * Returns the default HEAD for a repository. Normally returns the ref HEAD points to, but if HEAD points to nothing
+ * it returns null.
+ *
+ * @param repository
+ * @return the refmodel for HEAD or null
+ */
+ public static RefModel getDefaultHead(Repository repository) {
+ RefModel ref = null;
+ try {
+ Ref head = repository.getRef(Constants.HEAD);
+ if (head != null) {
+ Ref target = head.getTarget();
+ RevWalk rw = new RevWalk(repository);
+ ObjectId targetId = target.getObjectId();
+ if (targetId != null) {
+ RevObject object = rw.parseAny(targetId);
+ ref = new RefModel(target.getName(), target, object);
+ }
+ rw.dispose();
+ }
+ } catch (Throwable t) {
+ LOGGER.error("Failed to get default head!", t);
+ }
+ return ref;
+ }
+
+ /**
+ * Sets the default HEAD symbolic ref for a repository.
+ *
+ * @param repository
+ * @param ref
+ */
+ public static void setDefaultHead(Repository repository, Ref ref) {
+ try {
+ boolean detach = !ref.getName().startsWith(Constants.R_HEADS); // detach if not a branch
+ RefUpdate.Result result;
+ RefUpdate head = repository.updateRef(Constants.HEAD, detach);
+ if (detach) { // Tag
+ RevCommit commit = getCommit(repository, ref.getObjectId().getName());
+ head.setNewObjectId(commit.getId());
+ result = head.forceUpdate();
+ } else {
+ result = head.link(ref.getName());
+ }
+ switch (result) {
+ case NEW:
+ case FORCED:
+ case NO_CHANGE:
+ case FAST_FORWARD:
+ break;
+ default:
+ LOGGER.error(MessageFormat.format("{0} failed to set default head to {1} ({2})",
+ repository.getDirectory().getAbsolutePath(), ref.getName(), result));
+ }
+ } catch (Throwable t) {
+ error(t, repository, "{0} failed to set default head to {1}", ref.getName());
+ }
}
/**
@@ -1044,9 +1343,53 @@
list = new ArrayList<RefModel>(list.subList(0, maxCount));
}
} catch (IOException e) {
- LOGGER.error("Failed to retrieve " + refs, e);
+ error(e, repository, "{0} failed to retrieve {1}", refs);
}
return list;
+ }
+
+ /**
+ * Returns a RefModel for the gh-pages branch in the repository. If the
+ * branch can not be found, null is returned.
+ *
+ * @param repository
+ * @return a refmodel for the gh-pages branch or null
+ */
+ public static RefModel getPagesBranch(Repository repository) {
+ return getBranch(repository, "gh-pages");
+ }
+
+ /**
+ * Returns a RefModel for a specific branch name in the repository. If the
+ * branch can not be found, null is returned.
+ *
+ * @param repository
+ * @return a refmodel for the branch or null
+ */
+ public static RefModel getBranch(Repository repository, String name) {
+ RefModel branch = null;
+ try {
+ // search for the branch in local heads
+ for (RefModel ref : JGitUtils.getLocalBranches(repository, false, -1)) {
+ if (ref.displayName.endsWith(name)) {
+ branch = ref;
+ break;
+ }
+ }
+
+ // search for the branch in remote heads
+ if (branch == null) {
+ for (RefModel ref : JGitUtils.getRemoteBranches(repository, false, -1)) {
+ if (ref.displayName.endsWith(name)) {
+ branch = ref;
+ break;
+ }
+ }
+ }
+ } catch (Throwable t) {
+ LOGGER.error(MessageFormat.format("Failed to find {0} branch!", name), t);
+ }
+ return branch;
}
/**
@@ -1082,6 +1425,77 @@
}
/**
+ * Create an orphaned branch in a repository.
+ *
+ * @param repository
+ * @param branchName
+ * @param author
+ * if unspecified, Gitblit will be the author of this new branch
+ * @return true if successful
+ */
+ public static boolean createOrphanBranch(Repository repository, String branchName,
+ PersonIdent author) {
+ boolean success = false;
+ String message = "Created branch " + branchName;
+ if (author == null) {
+ author = new PersonIdent("Gitblit", "gitblit@localhost");
+ }
+ try {
+ ObjectInserter odi = repository.newObjectInserter();
+ try {
+ // Create a blob object to insert into a tree
+ ObjectId blobId = odi.insert(Constants.OBJ_BLOB,
+ message.getBytes(Constants.CHARACTER_ENCODING));
+
+ // Create a tree object to reference from a commit
+ TreeFormatter tree = new TreeFormatter();
+ tree.append("NEWBRANCH", FileMode.REGULAR_FILE, blobId);
+ ObjectId treeId = odi.insert(tree);
+
+ // Create a commit object
+ CommitBuilder commit = new CommitBuilder();
+ commit.setAuthor(author);
+ commit.setCommitter(author);
+ commit.setEncoding(Constants.CHARACTER_ENCODING);
+ commit.setMessage(message);
+ commit.setTreeId(treeId);
+
+ // Insert the commit into the repository
+ ObjectId commitId = odi.insert(commit);
+ odi.flush();
+
+ RevWalk revWalk = new RevWalk(repository);
+ try {
+ RevCommit revCommit = revWalk.parseCommit(commitId);
+ if (!branchName.startsWith("refs/")) {
+ branchName = "refs/heads/" + branchName;
+ }
+ RefUpdate ru = repository.updateRef(branchName);
+ ru.setNewObjectId(commitId);
+ ru.setRefLogMessage("commit: " + revCommit.getShortMessage(), false);
+ Result rc = ru.forceUpdate();
+ switch (rc) {
+ case NEW:
+ case FORCED:
+ case FAST_FORWARD:
+ success = true;
+ break;
+ default:
+ success = false;
+ }
+ } finally {
+ revWalk.release();
+ }
+ } finally {
+ odi.release();
+ }
+ } catch (Throwable t) {
+ error(t, repository, "Failed to create orphan branch {1} in repository {0}", branchName);
+ }
+ return success;
+ }
+
+ /**
* Returns a StoredConfig object for the repository.
*
* @param repository
@@ -1092,9 +1506,9 @@
try {
c.load();
} catch (ConfigInvalidException cex) {
- LOGGER.error("Repository configuration is invalid!", cex);
+ error(cex, repository, "{0} configuration is invalid!");
} catch (IOException cex) {
- LOGGER.error("Could not open repository configuration!", cex);
+ error(cex, repository, "Could not open configuration for {0}!");
}
return c;
}
@@ -1154,7 +1568,7 @@
zos.finish();
success = true;
} catch (IOException e) {
- LOGGER.error("Failed to zip files from commit " + commit.getName(), e);
+ error(e, repository, "{0} failed to zip files from commit {1}", commit.getName());
} finally {
tw.release();
rw.dispose();
--
Gitblit v1.9.1