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https://github.com/overleaf/overleaf.git
synced 2024-11-07 20:31:06 -05:00
Speculative solution
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parent
19075f18bc
commit
4f3021cca1
6 changed files with 90 additions and 7 deletions
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@ -9,6 +9,7 @@
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<version>1.0-SNAPSHOT</version>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.test.skip>true</maven.test.skip>
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</properties>
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<build>
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<plugins>
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@ -37,6 +37,7 @@ import uk.ac.ic.wlgitbridge.server.PostbackContents;
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import uk.ac.ic.wlgitbridge.server.PostbackHandler;
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import uk.ac.ic.wlgitbridge.snapshot.base.MissingRepositoryException;
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import uk.ac.ic.wlgitbridge.snapshot.base.ForbiddenException;
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import uk.ac.ic.wlgitbridge.snapshot.getdoc.GetDocResult;
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import uk.ac.ic.wlgitbridge.snapshot.getforversion.SnapshotAttachment;
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import uk.ac.ic.wlgitbridge.snapshot.push.PostbackManager;
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import uk.ac.ic.wlgitbridge.snapshot.push.PostbackPromise;
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@ -299,7 +300,7 @@ public class Bridge {
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* Synchronises the given repository with Overleaf.
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*
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* It acquires the project lock and calls
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* {@link #getUpdatedRepoCritical(Optional, String)}.
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* {@link #getUpdatedRepoCritical(Optional, String, GetDocResult)}.
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* @param oauth2 The oauth2 to use
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* @param projectName The name of the project
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* @throws IOException
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@ -310,11 +311,13 @@ public class Bridge {
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String projectName
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) throws IOException, GitUserException {
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try (LockGuard __ = lock.lockGuard(projectName)) {
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if (!snapshotAPI.projectExists(oauth2, projectName)) {
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Optional<GetDocResult> maybeDoc = snapshotAPI.getDoc(oauth2, projectName);
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if (!maybeDoc.isPresent()) {
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throw new RepositoryNotFoundException(projectName);
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}
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GetDocResult doc = maybeDoc.get();
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Log.info("[{}] Updating repository", projectName);
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return getUpdatedRepoCritical(oauth2, projectName);
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return getUpdatedRepoCritical(oauth2, projectName, doc);
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}
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}
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@ -346,14 +349,49 @@ public class Bridge {
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*/
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private ProjectRepo getUpdatedRepoCritical(
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Optional<Credential> oauth2,
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String projectName
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String projectName,
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GetDocResult doc
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) throws IOException, GitUserException {
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ProjectRepo repo;
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ProjectState state = dbStore.getProjectState(projectName);
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Log.info(">>>> RepoStore {}", repoStore.getRepoStorePath());
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Log.info(
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">>>> getUpdatedRepoCritical, {} migratedFrom {}",
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projectName,
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doc.getMigratedFromID()
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);
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switch (state) {
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case NOT_PRESENT:
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repo = repoStore.initRepo(projectName);
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break;
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Log.info(">>>> Not present {}", projectName);
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String migratedFromID = doc.getMigratedFromID();
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if (migratedFromID != null) {
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Log.info(">>>> has a migratedFromId {} {}", projectName, migratedFromID);
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ProjectState sourceState = dbStore.getProjectState(migratedFromID);
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try (LockGuard __ = lock.lockGuard(migratedFromID)) {
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switch (sourceState) {
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case NOT_PRESENT:
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// Normal init-repo
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Log.info(">>>> migrated-from-id not present, proceed as normal");
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repo = repoStore.initRepo(projectName);
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break;
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case SWAPPED:
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// Swap back and then copy
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Log.info(">>>> migrated-from-id swapped, unswap and proceed");
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swapJob.restore(migratedFromID);
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/* Fallthrough */
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default:
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// Copy data, and set version to zero
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Log.info(">>>> migrated-from-id init from existing");
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repo = repoStore.initRepoFromExisting(projectName, migratedFromID);
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dbStore.setLatestVersionForProject(migratedFromID, 0);
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}
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}
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break;
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} else {
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Log.info(">>>> no migrated-from-id {}", projectName);
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repo = repoStore.initRepo(projectName);
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break;
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}
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case SWAPPED:
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swapJob.restore(projectName);
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/* Fallthrough */
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@ -4,6 +4,7 @@ import com.google.api.client.repackaged.com.google.common.base.Preconditions;
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import org.apache.commons.io.FileUtils;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.Repository;
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import uk.ac.ic.wlgitbridge.util.Log;
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import uk.ac.ic.wlgitbridge.util.Project;
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import uk.ac.ic.wlgitbridge.util.Tar;
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@ -74,6 +75,38 @@ public class FSGitRepoStore implements RepoStore {
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ret, Optional.of(maxFileSize), Optional.empty());
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}
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@Override
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public ProjectRepo initRepoFromExisting(
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String project, String fromProject
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) throws IOException {
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GitProjectRepo ret = GitProjectRepo.fromName(project);
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// GitProjectRepo origin = GitProjectRepo.fromName(fromProject);
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ret.initRepo(this);
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Log.info(">>>> Copy from {} to {}", fromProject, project);
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String repoRoot = getRepoStorePath();
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String sourcePath = repoRoot + "/" + fromProject;
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String destinationPath = repoRoot + "/" + project;
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Log.info(">>>> paths from: {} and to: {}", sourcePath, destinationPath);
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new ProcessBuilder(
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"rm", "-rf",
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destinationPath
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).start();
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Process copyProcess = new ProcessBuilder(
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"cp", "-ra",
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sourcePath,
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destinationPath + "/"
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).start();
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Log.info(">>>> done copy");
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try {
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copyProcess.waitFor();
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} catch (InterruptedException e) {
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e.printStackTrace();
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throw new IOException("copy failed" + e.getLocalizedMessage());
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}
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return new WalkOverrideGitRepo(
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ret, Optional.of(maxFileSize), Optional.empty());
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}
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@Override
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public ProjectRepo getExistingRepo(String project) throws IOException {
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GitProjectRepo ret = GitProjectRepo.fromName(project);
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@ -22,6 +22,8 @@ public interface RepoStore {
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ProjectRepo initRepo(String project) throws IOException;
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ProjectRepo initRepoFromExisting(String project, String fromProject) throws IOException;
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ProjectRepo getExistingRepo(String project) throws IOException;
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ProjectRepo useJGitRepo(Repository repo, ObjectId commitId);
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@ -44,6 +44,15 @@ public class SnapshotApiFacade {
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}
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}
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public Optional<GetDocResult> getDoc(
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Optional<Credential> oauth2,
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String projectName
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) throws FailedConnectionException, GitUserException {
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GetDocResult doc = SnapshotApi
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.getResult(api.getDoc(oauth2, projectName));
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return Optional.ofNullable(doc);
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}
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public Deque<Snapshot> getSnapshots(
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Optional<Credential> oauth2,
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String projectName,
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@ -90,7 +90,7 @@ public class WLRepositoryResolver
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return bridge.getUpdatedRepo(oauth2, projName).getJGitRepository();
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} catch (RepositoryNotFoundException e) {
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Log.info("Repository not found: " + name);
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throw e;
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throw new RepositoryNotFoundException("derp");
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/*
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} catch (ServiceNotAuthorizedException e) {
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cannot occur
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