Update browser result after computation

scm-core/src/main/java/sonia/scm/repository/api/BrowseCommandBuilder.java

@@ -300,6 +300,13 @@ public final class BrowseCommandBuilder
     return this;
   }
 
+  private void updateCache(BrowserResult updatedResult) {
+    if (!disableCache) {
+      CacheKey key = new CacheKey(repository, request);
+      cache.put(key, updatedResult);
+    }
+  }
+
   //~--- inner classes --------------------------------------------------------
 
   /**
@@ -416,5 +423,5 @@ public final class BrowseCommandBuilder
   private final Repository repository;
 
   /** request for the command */
-  private final BrowseCommandRequest request = new BrowseCommandRequest();
+  private final BrowseCommandRequest request = new BrowseCommandRequest(this::updateCache);
 }

scm-core/src/main/java/sonia/scm/repository/spi/BrowseCommandRequest.java

@@ -37,6 +37,10 @@ package sonia.scm.repository.spi;
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Objects;
+import sonia.scm.repository.BrowserResult;
+
+import java.util.function.Consumer;
+
 /**
  *
  * @author Sebastian Sdorra
@@ -48,6 +52,14 @@ public final class BrowseCommandRequest extends FileBaseCommandRequest
   /** Field description */
   private static final long serialVersionUID = 7956624623516803183L;
 
+  public BrowseCommandRequest() {
+    this(null);
+  }
+
+  public BrowseCommandRequest(Consumer<BrowserResult> updater) {
+    this.updater = updater;
+  }
+
   //~--- methods --------------------------------------------------------------
 
   /**
@@ -220,6 +232,12 @@ public final class BrowseCommandRequest extends FileBaseCommandRequest
     return recursive;
   }
 
+  public void updateCache(BrowserResult update) {
+    if (updater != null) {
+      updater.accept(update);
+    }
+  }
+
   //~--- fields ---------------------------------------------------------------
 
   /** disable last commit */
@@ -230,4 +248,6 @@ public final class BrowseCommandRequest extends FileBaseCommandRequest
 
   /** browse file objects recursive */
   private boolean recursive = false;
+
+  private final Consumer<BrowserResult> updater;
 }

scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/spi/GitBrowseCommand.java

@@ -56,6 +56,7 @@ import sonia.scm.repository.BrowserResult;
 import sonia.scm.repository.FileObject;
 import sonia.scm.repository.GitSubModuleParser;
 import sonia.scm.repository.GitUtil;
+import sonia.scm.repository.InternalRepositoryException;
 import sonia.scm.repository.Repository;
 import sonia.scm.repository.SubRepository;
 import sonia.scm.store.Blob;
@@ -71,9 +72,7 @@ import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 
 import static java.util.Optional.empty;
 import static sonia.scm.ContextEntry.ContextBuilder.entity;
@@ -99,7 +98,6 @@ public class GitBrowseCommand extends AbstractGitCommand
     LoggerFactory.getLogger(GitBrowseCommand.class);
   private final LfsBlobStoreFactory lfsBlobStoreFactory;
 
-  private boolean fetchCommits = true;
   private ExecutorService executorService;
 
   //~--- constructors ---------------------------------------------------------
@@ -130,13 +128,25 @@ public class GitBrowseCommand extends AbstractGitCommand
       ObjectId revId = computeRevIdToBrowse(request, repo);
 
       if (revId != null) {
-        return new BrowserResult(revId.getName(), request.getRevision(), getEntry(repo, request, revId));
+        BrowserResult browserResult = new BrowserResult(revId.getName(), request.getRevision(), getEntry(repo, request, revId));
+        executorService.execute(() -> {
+          request.updateCache(browserResult);
+          logger.info("updated browser result for repository {}", repository.getNamespaceAndName());
+        });
+        return browserResult;
       } else {
         logger.warn("could not find head of repository {}, empty?", repository.getNamespaceAndName());
         return new BrowserResult(Constants.HEAD, request.getRevision(), createEmtpyRoot());
       }
     } finally {
       executorService.shutdown();
+      try {
+        if (!executorService.awaitTermination(10, TimeUnit.SECONDS)) {
+          logger.info("lookup of all commits took too long in repo {}", repository.getNamespaceAndName());
+        }
+      } catch (InterruptedException e) {
+        Thread.currentThread().interrupt();
+      }
     }
   }
 
@@ -209,21 +219,16 @@ public class GitBrowseCommand extends AbstractGitCommand
       // don't show message and date for directories to improve performance
       if (!file.isDirectory() &&!request.isDisableLastCommit())
       {
-        RevCommit commit = null;
+        executorService.execute(() -> {
-        if (fetchCommits) {
           logger.trace("fetch last commit for {} at {}", path, revId.getName());
-          Future<RevCommit> f = executorService.submit(() -> getLatestCommit(repo, revId, path));
+          RevCommit commit = getLatestCommit(repo, revId, path);
-          try {
-            commit = f.get(100, TimeUnit.MILLISECONDS);
-          } catch (TimeoutException e) {
-            logger.info("lookup of latest commit took too much time for {} at {}; disabling lookup on {}", path, revId.name(), repository.getNamespaceAndName());
-            fetchCommits = false;
-          } catch (Exception e) {
-            logger.warn("got exception while computing last commit for {} on {}", path, revId.name(), e);
-          }
-        }
 
-        Optional<LfsPointer> lfsPointer = commit == null? empty(): GitUtil.getLfsPointer(repo, path, commit, treeWalk);
+          Optional<LfsPointer> lfsPointer;
+          try {
+            lfsPointer = commit == null ? empty() : GitUtil.getLfsPointer(repo, path, commit, treeWalk);
+          } catch (IOException e) {
+            throw new InternalRepositoryException(repository, "could not read lfs pointer", e);
+          }
 
           if (lfsPointer.isPresent()) {
             BlobStore lfsBlobStore = lfsBlobStoreFactory.getLfsBlobStore(repository);
@@ -239,16 +244,14 @@ public class GitBrowseCommand extends AbstractGitCommand
             file.setLength(loader.getSize());
           }
 
-        if (commit != null)
+          if (commit != null) {
-        {
             file.setLastModified(GitUtil.getCommitTime(commit));
             file.setDescription(commit.getShortMessage());
-        }
+          } else {
-        else if (fetchCommits)
-        {
             logger.warn("could not find latest commit for {} on {}", path,
               revId);
           }
+        });
       }
     }
     return file;

scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitBrowseCommandTest.java

@@ -142,7 +142,7 @@ public class GitBrowseCommandTest extends AbstractGitCommandTestBase {
   }
 
   @Test
-  public void testRecusive() throws IOException {
+  public void testRecursive() throws IOException {
     BrowseCommandRequest request = new BrowseCommandRequest();
 
     request.setRecursive(true);