Support for the commit-msg hook.

This hook uses the file .git/COMMIT_EDITMSG to receive and potentially
modify the commit message.

Change-Id: Ibe2faadfb5d3932a5a3da2252d8156c4c04856c7
Signed-off-by: Laurent Delaigue <laurent.delaigue@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/org.eclipse.jgit.java7.test/src/org/eclipse/jgit/util/HookTest.java b/org.eclipse.jgit.java7.test/src/org/eclipse/jgit/util/HookTest.java
index 0324efca6a..d3cc0ce0d6 100644
--- a/org.eclipse.jgit.java7.test/src/org/eclipse/jgit/util/HookTest.java
+++ b/org.eclipse.jgit.java7.test/src/org/eclipse/jgit/util/HookTest.java
@@ -53,9 +53,11 @@ import java.io.PrintStream;
 
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.errors.AbortedByHookException;
+import org.eclipse.jgit.hooks.CommitMsgHook;
 import org.eclipse.jgit.hooks.PreCommitHook;
 import org.eclipse.jgit.junit.JGitTestUtil;
 import org.eclipse.jgit.junit.RepositoryTestCase;
+import org.eclipse.jgit.revwalk.RevCommit;
 import org.junit.Assume;
 import org.junit.Test;
 
@@ -74,6 +76,62 @@ public class HookTest extends RepositoryTestCase {
 	}
 
 	@Test
+	public void testFailedCommitMsgHookBlocksCommit() throws Exception {
+		assumeSupportedPlatform();
+
+		writeHookFile(CommitMsgHook.NAME,
+				"#!/bin/sh\necho \"test\"\n\necho 1>&2 \"stderr\"\nexit 1");
+		Git git = Git.wrap(db);
+		String path = "a.txt";
+		writeTrashFile(path, "content");
+		git.add().addFilepattern(path).call();
+		ByteArrayOutputStream out = new ByteArrayOutputStream();
+		try {
+			git.commit().setMessage("commit")
+					.setHookOutputStream(new PrintStream(out)).call();
+			fail("expected commit-msg hook to abort commit");
+		} catch (AbortedByHookException e) {
+			assertEquals("unexpected error message from commit-msg hook",
+					"Rejected by \"commit-msg\" hook.\nstderr\n",
+					e.getMessage());
+			assertEquals("unexpected output from commit-msg hook", "test\n",
+					out.toString());
+		}
+	}
+
+	@Test
+	public void testCommitMsgHookReceivesCorrectParameter() throws Exception {
+		assumeSupportedPlatform();
+
+		writeHookFile(CommitMsgHook.NAME,
+				"#!/bin/sh\necho $1\n\necho 1>&2 \"stderr\"\nexit 0");
+		Git git = Git.wrap(db);
+		String path = "a.txt";
+		writeTrashFile(path, "content");
+		git.add().addFilepattern(path).call();
+		ByteArrayOutputStream out = new ByteArrayOutputStream();
+		git.commit().setMessage("commit")
+				.setHookOutputStream(new PrintStream(out)).call();
+		assertEquals(".git/COMMIT_EDITMSG\n", out.toString("UTF-8"));
+	}
+
+	@Test
+	public void testCommitMsgHookCanModifyCommitMessage() throws Exception {
+		assumeSupportedPlatform();
+
+		writeHookFile(CommitMsgHook.NAME,
+				"#!/bin/sh\necho \"new message\" > $1\nexit 0");
+		Git git = Git.wrap(db);
+		String path = "a.txt";
+		writeTrashFile(path, "content");
+		git.add().addFilepattern(path).call();
+		ByteArrayOutputStream out = new ByteArrayOutputStream();
+		RevCommit revCommit = git.commit().setMessage("commit")
+				.setHookOutputStream(new PrintStream(out)).call();
+		assertEquals("new message\n", revCommit.getFullMessage());
+	}
+
+	@Test
 	public void testRunHook() throws Exception {
 		assumeSupportedPlatform();