Fix .gitignore handling in root directory

Author: Vampire

src/svn.cpp

@@ -1099,14 +1099,20 @@ int SvnRevision::addGitIgnore(apr_pool_t *pool, const char *key, QString path,
     }
 
     // Add gitignore-File
-    QString gitIgnorePath = path + ".gitignore";
+    QString gitIgnorePath = path == "/" ? ".gitignore" : path + ".gitignore";
     if (content) {
         QIODevice *io = txn->addFile(gitIgnorePath, 33188, strlen(content));
         if (!CommandLineParser::instance()->contains("dry-run")) {
             io->write(content);
             io->putChar('\n');
         }
     } else {
+        // no empty placeholder .gitignore for repository root
+        // this should be handled previously already, just a
+        // security measure here.
+        if (path == "/") {
+            return EXIT_FAILURE;
+        }
         QIODevice *io = txn->addFile(gitIgnorePath, 33188, 0);
         if (!CommandLineParser::instance()->contains("dry-run")) {
             io->putChar('\n');
@@ -1145,6 +1151,11 @@ int SvnRevision::checkParentNotEmpty(apr_pool_t *pool, const char *key, QString
     index = cleanPath.lastIndexOf(slash);
     QString parentPath = cleanPath.left(index);
 
+    // we are in the root directory, do not add a .gitignore here
+    if (index == -1) {
+        return EXIT_FAILURE;
+    }
+
     // if svn-ignore should have added a .gitignore file, do not overwrite it with an empty one
     // if svn:ignore could not be determined, stay safe and do not overwrite the .gitignore file
     // even if then an empty directory might be missing

test/empty-dirs.bats

@@ -318,6 +318,52 @@ load 'common'
     assert_equal "$(git -C git-repo show master:dir-a/.gitignore)" '/ignore-a'
 }
 
+@test 'deleting last file from root should not add empty .gitignore with empty-dirs-parameter' {
+    touch file-a
+    svn add file-a
+    svn commit -m 'add file-a'
+    svn rm file-a
+    svn commit -m 'delete file-a'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --empty-dirs --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    refute git -C git-repo show master:.gitignore
+    refute git -C git-repo show master:file-a/.gitignore
+}
+
+@test 'deleting last file from root should not add empty .gitignore with empty-dirs-parameter (nested)' {
+    svn mkdir project-a
+    cd project-a
+    touch file-a
+    svn add file-a
+    svn commit -m 'add file-a'
+    svn rm file-a
+    svn commit -m 'delete file-a'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --empty-dirs --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /project-a/
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    refute git -C git-repo show master:.gitignore
+    refute git -C git-repo show master:file-a/.gitignore
+}
+
 @test 'deleting last directory from a directory should add empty .gitignore with empty-dirs-parameter' {
     svn mkdir --parents dir-a/subdir-a
     svn commit -m 'add dir-a/subdir-a'
@@ -414,6 +460,50 @@ load 'common'
     assert_equal "$(git -C git-repo show master:dir-a/.gitignore)" '/ignore-a'
 }
 
+@test 'deleting last directory from root should not add empty .gitignore with empty-dirs-parameter' {
+    svn mkdir dir-a
+    svn commit -m 'add dir-a'
+    svn rm dir-a
+    svn commit -m 'delete dir-a'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --empty-dirs --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    refute git -C git-repo show master:.gitignore
+    refute git -C git-repo show master:dir-a/.gitignore
+}
+
+@test 'deleting last directory from root should not add empty .gitignore with empty-dirs-parameter (nested)' {
+    svn mkdir project-a
+    cd project-a
+    svn mkdir dir-a
+    svn commit -m 'add dir-a'
+    svn rm dir-a
+    svn commit -m 'delete dir-a'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --empty-dirs --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /project-a/
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    refute git -C git-repo show master:.gitignore
+    refute git -C git-repo show master:dir-a/.gitignore
+}
+
 @test 'copying an empty directory should put empty .gitignore file to copy with empty-dirs parameter' {
     svn mkdir dir-a
     svn commit -m 'add dir-a'

test/svn-ignore.bats

@@ -360,6 +360,58 @@ load 'common'
     assert git -C git-repo show master:dir-a/file-a
 }
 
+@test 'svn-ignore translation should be done properly on the root directory' {
+    svn propset svn:ignore $'ignore-a\nignore-b' .
+    svn commit -m 'ignore ignore-a and ignore-b on root'
+    svn propset svn:global-ignores 'ignore-c' .
+    svn commit -m 'ignore ignore-c on root and descendents'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --svn-ignore --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    assert_equal "$(git -C git-repo show master:.gitignore)" "$(cat <<-EOF
+			/ignore-a
+			/ignore-b
+			ignore-c
+		EOF
+    )"
+}
+
+@test 'svn-ignore translation should be done properly on the root directory (nested)' {
+    svn mkdir project-a
+    cd project-a
+    svn propset svn:ignore $'ignore-a\nignore-b' .
+    svn commit -m 'ignore ignore-a and ignore-b on root'
+    svn propset svn:global-ignores 'ignore-c' .
+    svn commit -m 'ignore ignore-c on root and descendents'
+
+    cd "$TEST_TEMP_DIR"
+    svn2git "$SVN_REPO" --svn-ignore --rules <(echo "
+        create repository git-repo
+        end repository
+
+        match /project-a/
+            repository git-repo
+            branch master
+        end match
+    ")
+
+    assert_equal "$(git -C git-repo show master:.gitignore)" "$(cat <<-EOF
+			/ignore-a
+			/ignore-b
+			ignore-c
+		EOF
+    )"
+}
+
 @test 'gitignore file should be removed if all svn-ignores are removed' {
     svn mkdir dir-a
     svn propset svn:ignore 'ignore-a' dir-a