Refactoring adds SshUtil class

Move common parts of few commands to the static utility class.

Change-Id: Id003117db6462f88944438daf6c6ee2c34a13664
diff --git a/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/AddToQueue.java b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/AddToQueue.java
index 8144f18..63a4551 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/AddToQueue.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/AddToQueue.java
@@ -20,10 +20,8 @@
 import com.ericsson.gerrit.plugins.gcconductor.GcQueueException;
 import com.ericsson.gerrit.plugins.gcconductor.Hostname;
 import com.google.gerrit.common.data.GlobalCapability;
-import com.google.gerrit.entities.Project;
 import com.google.gerrit.extensions.annotations.RequiresCapability;
 import com.google.gerrit.server.git.GitRepositoryManager;
-import com.google.gerrit.server.git.LocalDiskRepositoryManager;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.sshd.AdminHighPriorityCommand;
 import com.google.gerrit.sshd.CommandMetaData;
@@ -32,7 +30,6 @@
 import java.io.IOException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.RepositoryCache.FileKey;
 import org.eclipse.jgit.util.FS;
 import org.kohsuke.args4j.Argument;
@@ -70,7 +67,7 @@
         repositoryPath = repositoryPath.toRealPath();
       }
       if (!FileKey.isGitRepository(repositoryPath.toFile(), FS.DETECTED)) {
-        repositoryPath = resolvePath();
+        repositoryPath = GcUtils.resolvePath(gitRepositoryManager, projectCache, repository);
       }
       repository = repositoryPath.toString();
       queue.add(repository, hostName, aggressive);
@@ -82,39 +79,4 @@
       throw die(e);
     }
   }
-
-  private Path resolvePath() throws UnloggedFailure {
-    if (!(gitRepositoryManager instanceof LocalDiskRepositoryManager)) {
-      throw die("Unable to resolve path to " + repository);
-    }
-    String projectName = extractFrom(repository);
-    Project.NameKey nameKey = Project.nameKey(projectName);
-    if (projectCache.get(nameKey) == null) {
-      throw die(String.format("Repository %s not found", repository));
-    }
-    LocalDiskRepositoryManager localDiskRepositoryManager =
-        (LocalDiskRepositoryManager) gitRepositoryManager;
-    try {
-      return localDiskRepositoryManager
-          .getBasePath(nameKey)
-          .resolve(projectName.concat(Constants.DOT_GIT_EXT))
-          .toRealPath();
-    } catch (IOException e) {
-      throw die(e);
-    }
-  }
-
-  static String extractFrom(String path) {
-    String name = path;
-    if (name.startsWith("/")) {
-      name = name.substring(1);
-    }
-    if (name.endsWith("/")) {
-      name = name.substring(0, name.length() - 1);
-    }
-    if (name.endsWith(Constants.DOT_GIT_EXT)) {
-      name = name.substring(0, name.indexOf(Constants.DOT_GIT_EXT));
-    }
-    return name;
-  }
 }
diff --git a/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/GcUtils.java b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/GcUtils.java
new file mode 100644
index 0000000..b6623a4
--- /dev/null
+++ b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/GcUtils.java
@@ -0,0 +1,67 @@
+// Copyright (C) 2022 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.ericsson.gerrit.plugins.gcconductor.command;
+
+import static com.google.gerrit.pgm.init.api.InitUtil.die;
+
+import com.google.gerrit.entities.Project;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gerrit.server.git.LocalDiskRepositoryManager;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.sshd.BaseCommand.UnloggedFailure;
+import java.io.IOException;
+import java.nio.file.Path;
+import org.eclipse.jgit.lib.Constants;
+
+public class GcUtils {
+  private GcUtils() {}
+
+  static Path resolvePath(
+      GitRepositoryManager gitRepositoryManager, ProjectCache projectCache, String repository)
+      throws UnloggedFailure {
+    if (!(gitRepositoryManager instanceof LocalDiskRepositoryManager)) {
+      throw die("Unable to resolve path to " + repository);
+    }
+    String projectName = extractFrom(repository);
+    Project.NameKey nameKey = Project.nameKey(projectName);
+    if (projectCache.get(nameKey) == null) {
+      throw die(String.format("Repository %s not found", repository));
+    }
+    LocalDiskRepositoryManager localDiskRepositoryManager =
+        (LocalDiskRepositoryManager) gitRepositoryManager;
+    try {
+      return localDiskRepositoryManager
+          .getBasePath(nameKey)
+          .resolve(projectName.concat(Constants.DOT_GIT_EXT))
+          .toRealPath();
+    } catch (IOException e) {
+      throw die(e.toString());
+    }
+  }
+
+  static String extractFrom(String path) {
+    String name = path;
+    if (name.startsWith("/")) {
+      name = name.substring(1);
+    }
+    if (name.endsWith("/")) {
+      name = name.substring(0, name.length() - 1);
+    }
+    if (name.endsWith(Constants.DOT_GIT_EXT)) {
+      name = name.substring(0, name.indexOf(Constants.DOT_GIT_EXT));
+    }
+    return name;
+  }
+}
diff --git a/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/RepoStats.java b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/RepoStats.java
index e6573c9..c67c643 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/RepoStats.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/gcconductor/command/RepoStats.java
@@ -17,10 +17,8 @@
 import static com.google.gerrit.sshd.CommandMetaData.Mode.MASTER_OR_SLAVE;
 
 import com.google.gerrit.common.data.GlobalCapability;
-import com.google.gerrit.entities.Project;
 import com.google.gerrit.extensions.annotations.RequiresCapability;
 import com.google.gerrit.server.git.GitRepositoryManager;
-import com.google.gerrit.server.git.LocalDiskRepositoryManager;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.sshd.AdminHighPriorityCommand;
 import com.google.gerrit.sshd.CommandMetaData;
@@ -33,7 +31,6 @@
 import org.eclipse.jgit.internal.storage.file.FileRepository;
 import org.eclipse.jgit.internal.storage.file.GC;
 import org.eclipse.jgit.internal.storage.file.GC.RepoStatistics;
-import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.RepositoryCache;
 import org.eclipse.jgit.lib.RepositoryCache.FileKey;
 import org.eclipse.jgit.util.FS;
@@ -61,7 +58,7 @@
         repositoryPath = repositoryPath.toRealPath();
       }
       if (!FileKey.isGitRepository(repositoryPath.toFile(), FS.DETECTED)) {
-        repositoryPath = resolvePath();
+        repositoryPath = GcUtils.resolvePath(gitRepositoryManager, projectCache, repository);
       }
 
       stdout.println(getRepoStatistics(repositoryPath.toString()));
@@ -70,27 +67,6 @@
     }
   }
 
-  private Path resolvePath() throws UnloggedFailure {
-    if (!(gitRepositoryManager instanceof LocalDiskRepositoryManager)) {
-      throw die("Unable to resolve path to " + repository);
-    }
-    String projectName = AddToQueue.extractFrom(repository);
-    Project.NameKey nameKey = Project.nameKey(projectName);
-    if (projectCache.get(nameKey) == null) {
-      throw die(String.format("Repository %s not found", repository));
-    }
-    LocalDiskRepositoryManager localDiskRepositoryManager =
-        (LocalDiskRepositoryManager) gitRepositoryManager;
-    try {
-      return localDiskRepositoryManager
-          .getBasePath(nameKey)
-          .resolve(projectName.concat(Constants.DOT_GIT_EXT))
-          .toRealPath();
-    } catch (IOException e) {
-      throw die(e);
-    }
-  }
-
   private RepoStatistics getRepoStatistics(String repositoryPath) throws UnloggedFailure {
     try (FileRepository repository =
         (FileRepository)