Signed-off-by: Florian Koeberle <florianskarten@xxxxxx>
---
.../src/org/spearce/jgit/lib/Repository.java | 90 ++++++++++++++++++++
1 files changed, 90 insertions(+), 0 deletions(-)
diff --git a/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java b/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java
index 3186fe2..ed5bd89 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/lib/Repository.java
@@ -16,6 +16,11 @@
*/
package org.spearce.jgit.lib;
+import static org.spearce.jgit.lib.Constants.HEAD_FILE_NAME;
+import static org.spearce.jgit.lib.Constants.OBJECTS_DIRECTORY_NAME;
+import static org.spearce.jgit.lib.Constants.REFS_DIRECTORY_NAME;
+import static org.spearce.jgit.lib.Constants.REPOSITORY_DIRECTORY_NAME;
+
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
@@ -1242,4 +1247,89 @@ public class Repository {
}
}
+ /**
+ * Find the git repository for the current working directory.
+ *
+ * @return a {@link Repository}.
+ * @throws IOException
+ * if the system property user.dir isn't set or if it is
+ * invalid.
+ */
+ public static WorkTree findWorkTree() throws IOException {
+ final String workingDirectoryPath = System.getProperty("user.dir");
+ if (workingDirectoryPath == null) {
+ throw new IOException("unable to get working directory");
+ }
+ final File workingDirectoryFile = new File(workingDirectoryPath);
+ if (!workingDirectoryFile.exists()) {
+ throw new IOException("Working directory path is invalid");
+ }
+ return findWorkTree(workingDirectoryFile);
+ }
+
+ /**
+ * Checks if a path is a valid git repository. Works similar like the method
+ * is_git_directory from the original setup.c file.
+ *
+ * @param directory
+ * the path which should be checked.
+ * @return true if the path is a valid git repository.
+ */
+ private static boolean isRepository(File directory) {
+ if (!directory.isDirectory()) {
+ return false;
+ }
+
+ final File objectDirectory = new File(directory, OBJECTS_DIRECTORY_NAME);
+ if (!objectDirectory.isDirectory()) {
+ return false;
+ }
+
+ final File refsDirectory = new File(directory, REFS_DIRECTORY_NAME);
+ if (!refsDirectory.isDirectory()) {
+ return false;
+ }
+
+ final File head = new File(directory, HEAD_FILE_NAME);
+ if (!hasValidateHeadRef(head)) {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Checks for example if a path is a valid HEAD file. Should do the same
+ * like validate_headref from path.c.
+ *
+ * @param path
+ * is the path of the HEAD file.
+ * @return true if it has a valid head reference.
+ */
+ private static final boolean hasValidateHeadRef(File path) {
+ return true; // TODO stub. view int validate_headref(const char
+ // *path) at path.c
+ }
+
+ private static WorkTree findWorkTree(File directory) throws IOException {
+ File currentDirectory = directory.getAbsoluteFile();
+ while (true) {
+ final File commonGitDirectory = new File(directory,
+ REPOSITORY_DIRECTORY_NAME);
+ if (isRepository(commonGitDirectory)) {
+ return new WorkTree(currentDirectory, new Repository(
+ commonGitDirectory));
+ }
+
+ if (isRepository(currentDirectory)) {
+ return new WorkTree(null, new Repository(currentDirectory));
+ }
+ currentDirectory = currentDirectory.getParentFile();
+ if (currentDirectory == null) {
+ throw new IOException("Can't find git repository");
+ }
+ }
+
+ }
+
}
--
1.5.4.3
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