fix git branch checkout

src/main/java/ru/ulstu/extractor/controller/GitIndexingController.java

@@ -5,6 +5,9 @@
 
 package ru.ulstu.extractor.controller;
 
+import org.eclipse.jgit.api.errors.GitAPIException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -18,6 +21,7 @@ import ru.ulstu.extractor.model.mvc.RepoForm;
 import ru.ulstu.extractor.service.GitRepositoryService;
 import ru.ulstu.extractor.service.IndexService;
 
+import java.io.IOException;
 import java.util.List;
 
 import static ru.ulstu.extractor.controller.Route.FILTER_COMMITS;
@@ -25,6 +29,7 @@ import static ru.ulstu.extractor.controller.Route.INDEXING_NEW_REPOSITORY;
 
 @Controller
 public class GitIndexingController {
+    private final static Logger LOG = LoggerFactory.getLogger(GitIndexingController.class);
     private final GitRepositoryService gitRepositoryService;
     private final IndexService indexService;
 
@@ -43,8 +48,7 @@ public class GitIndexingController {
     @RequestMapping(value = INDEXING_NEW_REPOSITORY, method = RequestMethod.POST, params = "send")
     public String getBranch(@ModelAttribute RepoForm repoForm, Model model) {
         try {
-            gitRepositoryService.cloneOrUpdateRepo(repoForm.getRepo());
+            List<Branch> branches = gitRepositoryService.getRemoteBranches(repoForm.getRepo());
-            List<Branch> branches = gitRepositoryService.getBranches(repoForm.getRepo());
             model.addAttribute("branches", branches);
         } catch (Exception ex) {
             model.addAttribute("error", ex.getMessage());
@@ -53,14 +57,15 @@ public class GitIndexingController {
     }
 
     @RequestMapping(value = INDEXING_NEW_REPOSITORY, method = RequestMethod.POST, params = "next")
-    public String setBranch(@ModelAttribute RepoForm repoForm, Model model, RedirectAttributes redirectAttributes) {
+    public String indexBranch(@ModelAttribute RepoForm repoForm, Model model, RedirectAttributes redirectAttributes) {
         model.addAttribute("filterForm", new FilterForm(repoForm.getRepo()));
         if (repoForm.getBranch() == null) {
             return INDEXING_NEW_REPOSITORY;
         } else {
             try {
                 indexService.index(repoForm.getRepo(), repoForm.getBranch());
-            } catch (Exception ex) {
+            } catch (IOException | GitAPIException ex) {
+                ex.printStackTrace();
                 model.addAttribute("error", ex.getMessage());
                 return INDEXING_NEW_REPOSITORY;
             }

src/main/java/ru/ulstu/extractor/controller/RepoController.java

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021 Anton Romanov - All Rights Reserved
+ * You may use, distribute and modify this code, please write to: romanov73@gmail.com.
+ */
+
 package ru.ulstu.extractor.controller;
 
 import org.eclipse.jgit.api.errors.GitAPIException;
@@ -7,6 +12,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 import ru.ulstu.extractor.model.Commit;
 import ru.ulstu.extractor.service.GitRepositoryService;
+import ru.ulstu.extractor.service.IndexService;
 
 import java.io.IOException;
 import java.util.List;
@@ -18,14 +24,12 @@ import static ru.ulstu.extractor.controller.RepoController.URL;
 public class RepoController {
     public static final String URL = "/";
     private final GitRepositoryService gitRepositoryService;
+    private final IndexService indexService;
 
-    public RepoController(GitRepositoryService gitRepositoryService) {
+    public RepoController(GitRepositoryService gitRepositoryService,
+                          IndexService indexService) {
         this.gitRepositoryService = gitRepositoryService;
-    }
+        this.indexService = indexService;
-
-    @GetMapping("clone")
-    public void cloneRepository(@RequestParam("url") String url) throws GitAPIException, IOException {
-        gitRepositoryService.cloneOrUpdateRepo(url);
     }
 
     @GetMapping("commits")
@@ -34,4 +38,11 @@ public class RepoController {
         return gitRepositoryService.getCommits(repositoryUrl, branchName);
     }
 
+    @GetMapping("index")
+    public Boolean indexRepository(@RequestParam("repositoryUrl") String repositoryUrl,
+                                   @RequestParam("branchName") String branchName) throws GitAPIException, IOException {
+        indexService.index(repositoryUrl, branchName);
+        return true;
+    }
+
 }

src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021 Anton Romanov - All Rights Reserved
+ * You may use, distribute and modify this code, please write to: romanov73@gmail.com.
+ */
+
 package ru.ulstu.extractor.service;
 
 import org.apache.commons.io.FileUtils;
@@ -7,7 +12,6 @@ import org.eclipse.jgit.api.ListBranchCommand;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.diff.DiffFormatter;
 import org.eclipse.jgit.internal.storage.file.FileRepository;
-import org.eclipse.jgit.lib.Ref;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.springframework.beans.factory.annotation.Value;
@@ -37,7 +41,80 @@ public class GitRepositoryService {
     @Value("${extractor.custom-projects-dir}")
     private String customProjectsDir;
 
-    public void cloneOrUpdateRepo(String url) throws GitAPIException, IOException {
+    public List<Branch> getRemoteBranches(String url) throws GitAPIException, IOException {
+        cloneOrUpdateRepo(url);
+        Repository localRepo = new FileRepository(getProjectGitDirectory(url));
+        Git git = new Git(localRepo);
+        List<Branch> branches = git.branchList().setListMode(ListBranchCommand.ListMode.REMOTE)
+                .call()
+                .stream()
+                .map(r -> new Branch(r.getName().replace(BRANCH_PREFIX, "")))
+                .collect(Collectors.toList());
+        git.close();
+        localRepo.close();
+        return branches;
+    }
+
+    public List<Branch> getLocalBranches(String url) throws GitAPIException, IOException {
+        cloneOrUpdateRepo(url);
+        Repository localRepo = new FileRepository(getProjectGitDirectory(url));
+        Git git = new Git(localRepo);
+        List<Branch> branches = git.branchList()
+                .call()
+                .stream()
+                .map(r -> new Branch(r.getName().replace(BRANCH_PREFIX, "")))
+                .collect(Collectors.toList());
+        git.close();
+        localRepo.close();
+        return branches;
+    }
+
+    public List<Commit> getCommits(String repositoryUrl, String branchName) throws GitAPIException, IOException {
+        cloneOrUpdateRepo(repositoryUrl);
+        Repository localRepo = new FileRepository(getProjectGitDirectory(repositoryUrl));
+        Git git = new Git(localRepo);
+        git.pull().call();
+        if (!localRepo.getBranch().equals(branchName)) {
+            if (getLocalBranches(repositoryUrl).stream().anyMatch(localBranch -> localBranch.getName().contains(branchName))) {
+                git.checkout()
+                        .setName(branchName)
+                        .call();
+            } else {
+                git.checkout()
+                        .setCreateBranch(true)
+                        .setName(branchName)
+                        .setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK)
+                        .setStartPoint("origin/" + branchName)
+                        .call();
+            }
+        }
+        List<RevCommit> commits = new ArrayList<>();
+        git.log().call().forEach(commits::add);
+
+        List<Commit> list = new ArrayList<>();
+        RevCommit prevCommit = null;
+        for (RevCommit revCommit : commits) {
+            Commit commit = new Commit(
+                    revCommit.getFullMessage(),
+                    new Author(revCommit.getAuthorIdent().getName()),
+                    Date.from(Instant.ofEpochSecond(revCommit.getCommitTime())),
+                    revCommit.getName());
+            if (prevCommit != null) {
+                commit.setFileChanges(findDiffBetweenTwoRevisions(revCommit, prevCommit, localRepo));
+            }
+            list.add(commit);
+            prevCommit = revCommit;
+        }
+        git.close();
+        localRepo.close();
+        return list;
+    }
+
+    public void remove(String repositoryUrl) throws IOException {
+        FileUtils.deleteDirectory(getProjectDirectoryFile(repositoryUrl));
+    }
+
+    private void cloneOrUpdateRepo(String url) throws GitAPIException, IOException {
         Git git;
         if (projectDirExists(getProjectDirectoryFile(url))) {
             Repository localRepo = new FileRepository(getProjectGitDirectory(url));
@@ -72,42 +149,7 @@ public class GitRepositoryService {
         return file.exists();
     }
 
-    public List<Commit> getCommits(String repositoryUrl, String branchName) throws GitAPIException, IOException {
+    private List<FileChange> findDiffBetweenTwoRevisions(RevCommit laterCommit, RevCommit earlierCommit, Repository localRepo) {
-        cloneOrUpdateRepo(repositoryUrl);
-        Repository localRepo = new FileRepository(getProjectGitDirectory(repositoryUrl));
-        Git git = new Git(localRepo);
-        git.pull().call();
-        if (!localRepo.getBranch().equals(branchName)) {
-            Ref ref = git.checkout().
-                    setCreateBranch(true).
-                    setName(branchName).
-                    setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK).
-                    setStartPoint("origin/" + branchName).
-                    call();
-        }
-        List<RevCommit> commits = new ArrayList<>();
-        git.log().call().forEach(commits::add);
-
-        List<Commit> list = new ArrayList<>();
-        RevCommit prevCommit = null;
-        for (RevCommit revCommit : commits) {
-            Commit commit = new Commit(
-                    revCommit.getFullMessage(),
-                    new Author(revCommit.getAuthorIdent().getName()),
-                    Date.from(Instant.ofEpochSecond(revCommit.getCommitTime())),
-                    revCommit.getName());
-            if (prevCommit != null) {
-                commit.setFileChanges(findDiffBetweenTwoRevisions(revCommit, prevCommit, localRepo));
-            }
-            list.add(commit);
-            prevCommit = revCommit;
-        }
-        git.close();
-        localRepo.close();
-        return list;
-    }
-
-    public List<FileChange> findDiffBetweenTwoRevisions(RevCommit laterCommit, RevCommit earlierCommit, Repository localRepo) {
         if (laterCommit == null || earlierCommit == null) {
             return null;
         }
@@ -205,22 +247,4 @@ public class GitRepositoryService {
         }
         return Optional.empty();
     }
-
-    public List<Branch> getBranches(String url) throws GitAPIException, IOException {
-        cloneOrUpdateRepo(url);
-        Repository localRepo = new FileRepository(getProjectGitDirectory(url));
-        Git git = new Git(localRepo);
-        List<Branch> branches = git.branchList().setListMode(ListBranchCommand.ListMode.REMOTE)
-                .call()
-                .stream()
-                .map(r -> new Branch(r.getName().replace(BRANCH_PREFIX, "")))
-                .collect(Collectors.toList());
-        git.close();
-        localRepo.close();
-        return branches;
-    }
-
-    public void remove(String repositoryUrl) throws IOException {
-        FileUtils.deleteDirectory(getProjectDirectoryFile(repositoryUrl));
-    }
 }

src/main/java/ru/ulstu/extractor/service/IndexService.java

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021 Anton Romanov - All Rights Reserved
+ * You may use, distribute and modify this code, please write to: romanov73@gmail.com.
+ */
+
 package ru.ulstu.extractor.service;
 
 import com.sun.istack.NotNull;
@@ -5,6 +10,7 @@ import org.eclipse.jgit.api.errors.GitAPIException;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.ulstu.extractor.model.Author;
 import ru.ulstu.extractor.model.Branch;
 import ru.ulstu.extractor.model.Commit;
@@ -38,6 +44,7 @@ public class IndexService {
         this.authorRepository = authorRepository;
     }
 
+    @Transactional
     public void index(@NotNull String repositoryUrl, @NotNull String branchName) throws GitAPIException, IOException {
         Repository repository = repositoryRepository.findByUrl(repositoryUrl);
         if (repository == null) {
@@ -45,14 +52,13 @@ public class IndexService {
         }
         Branch branch = branchRepository.findByRepositoryAndName(repository, branchName);
         if (branch == null) {
-            branchRepository.save(new Branch(repository, branchName));
+            branch = branchRepository.save(new Branch(repository, branchName));
         }
         List<Commit> commits = gitRepositoryService.getCommits(repositoryUrl, branchName);
         commitRepository.deleteAll(branch.getCommits());
         branch.getCommits().clear();
         branch.setCommits(commits);
         branchRepository.save(branch);
-        gitRepositoryService.remove(repositoryUrl);
     }
 
     public List<Author> getRepositoryAuthors(@NotNull String repositoryUrl, @NotNull String branchName) {

src/main/resources/application.properties

@@ -1,5 +1,11 @@
+#
+# Copyright (C) 2021 Anton Romanov - All Rights Reserved
+# You may use, distribute and modify this code, please write to: romanov73@gmail.com.
+#
+
 spring.main.banner-mode=off
 server.port=8080
+server.jetty.connection-idle-timeout=1000s
 # Available levels are: TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF
 logging.level.ru.ulstu=DEBUG
 extractor.custom-projects-dir=

src/main/resources/templates/default.html

@@ -48,6 +48,8 @@
         </div>
         <div class="container-fluid">
             <ul id="messages" class="feedback-panel">
+                <div class="alert alert-danger" role="alert" th:if="${error}" th:text="${error}">
+                </div>
             </ul>
         </div>
         <div layout:fragment="content">

src/main/resources/templates/indexNewRepository.html

@@ -9,7 +9,6 @@
       layout:decorate="~{default}">
 <div class="container" layout:fragment="content">
     <form action="#" th:action="${@route.INDEXING_NEW_REPOSITORY}" th:object="${repoForm}" method="post">
-        <p style="color:red" th:text="${error}"></p>
         <button class="btn btn-outline-dark dropdown-toggle" type="button" data-toggle="collapse"
                 data-target="#collapseOne" aria-expanded="false" aria-controls="collapseExample"
                 th:if="${repoForm.repo != null}"