Merge pull request #2099 from libgit2/bs/more-reflog-stuff

More reflogness

examples/network/fetch.c

@@ -156,7 +156,7 @@ int fetch(git_repository *repo, int argc, char **argv)
 	// right commits. This may be needed even if there was no packfile
 	// to download, which can happen e.g. when the branches have been
 	// changed but all the neede objects are available locally.
-	if (git_remote_update_tips(remote) < 0)
+	if (git_remote_update_tips(remote, NULL, NULL) < 0)
 		return -1;
 
 	git_remote_free(remote);

include/git2/push.h

@@ -103,10 +103,16 @@ GIT_EXTERN(int) git_push_add_refspec(git_push *push, const char *refspec);
  * Update remote tips after a push
  *
  * @param push The push object
+ * @param signature The identity to use when updating reflogs
+ * @param reflog_message The message to insert into the reflogs. If NULL, the
+ *                       default is "update by push".
  *
  * @return 0 or an error code
  */
-GIT_EXTERN(int) git_push_update_tips(git_push *push);
+GIT_EXTERN(int) git_push_update_tips(
+		git_push *push,
+		const git_signature *signature,
+		const char *reflog_message);
 
 /**
  * Actually push all given refspecs

include/git2/remote.h

@@ -355,9 +355,16 @@ GIT_EXTERN(void) git_remote_free(git_remote *remote);
  * Update the tips to the new state
  *
  * @param remote the remote to update
+ * @param signature The identity to use when updating reflogs
+ * @param reflog_message The message to insert into the reflogs. If NULL, the
+ *                       default is "fetch <name>", where <name> is the name of
+ *                       the remote (or its url, for in-memory remotes).
  * @return 0 or an error code
  */
-GIT_EXTERN(int) git_remote_update_tips(git_remote *remote);
+GIT_EXTERN(int) git_remote_update_tips(
+		git_remote *remote,
+		const git_signature *signature,
+		const char *reflog_message);
 
 /**
  * Download new data and update tips
@@ -366,9 +373,15 @@ GIT_EXTERN(int) git_remote_update_tips(git_remote *remote);
  * disconnect and update the remote-tracking branches.
  *
  * @param remote the remote to fetch from
+ * @param signature The identity to use when updating reflogs
+ * @param reflog_message The message to insert into the reflogs. If NULL, the
+ *								 default is "fetch"
  * @return 0 or an error code
  */
-GIT_EXTERN(int) git_remote_fetch(git_remote *remote);
+GIT_EXTERN(int) git_remote_fetch(
+		git_remote *remote,
+		const git_signature *signature,
+		const char *reflog_message);
 
 /**
  * Return whether a string is a valid remote URL

include/git2/repository.h

@@ -615,11 +615,15 @@ GIT_EXTERN(int) git_repository_set_head_detached(
  * Otherwise, the HEAD will be detached and point to the peeled Commit.
  *
  * @param repo Repository pointer
+ * @param signature The identity that will used to populate the reflog entry
+ * @param log_message The one line long message to be appended to the reflog
  * @return 0 on success, GIT_EUNBORNBRANCH when HEAD points to a non existing
  * branch or an error code
  */
 GIT_EXTERN(int) git_repository_detach_head(
-	git_repository* repo);
+	git_repository* repo,
+	const git_signature *signature,
+	const char *reflog_message);
 
 typedef enum {
 	GIT_REPOSITORY_STATE_NONE,

include/git2/reset.h

@@ -48,10 +48,21 @@ typedef enum {
  *
  * @param reset_type Kind of reset operation to perform.
  *
+ * @param signature The identity that will used to populate the reflog entry
+ *
+ * @param log_message The one line long message to be appended to the reflog.
+ * The reflog is only updated if the affected direct reference is actually
+ * changing. If NULL, the default is "reset: moving"; if you want something more
+ * useful, provide a message.
+ *
  * @return 0 on success or an error code
  */
 GIT_EXTERN(int) git_reset(
-	git_repository *repo, git_object *target, git_reset_t reset_type);
+	git_repository *repo,
+	git_object *target,
+	git_reset_t reset_type,
+	git_signature *signature,
+	const char *log_message);
 
 /**
  * Updates some entries in the index from the target commit tree.

script/cibuild.sh

@@ -34,5 +34,5 @@ export GITTEST_REMOTE_SSH_PUBKEY="$HOME/.ssh/id_rsa.pub"
 export GITTEST_REMOTE_SSH_PASSPHRASE=""
 
 if [ -e ./libgit2_clar ]; then
-    ./libgit2_clar -sonline::push
+    ./libgit2_clar -sonline::push -sonline::clone::cred_callback_failure
 fi

src/clone.c

@@ -360,7 +360,7 @@ int git_clone_into(git_repository *repo, git_remote *remote, const git_checkout_
 	git_remote_set_update_fetchhead(remote, 0);
 	git_buf_printf(&reflog_message, "clone: from %s", git_remote_url(remote));
 
-	if ((error = git_remote_fetch(remote)) != 0)
+	if ((error = git_remote_fetch(remote, signature, git_buf_cstr(&reflog_message))) != 0)
 		goto cleanup;
 
 	if (branch)

src/commit.c

@@ -111,8 +111,27 @@ int git_commit_create_from_ids(
 
 	git_buf_free(&commit);
 
-	if (update_ref != NULL)
-		return git_reference__update_terminal(repo, update_ref, oid, NULL, NULL);
+	if (update_ref != NULL) {
+		int error;
+		git_commit *c;
+		const char *shortmsg;
+		git_buf reflog_msg = GIT_BUF_INIT;
+
+		if (git_commit_lookup(&c, repo, oid) < 0)
+			goto on_error;
+
+		shortmsg = git_commit_summary(c);
+		git_buf_printf(&reflog_msg, "commit%s: %s",
+				git_commit_parentcount(c) == 0 ? " (initial)" : "",
+				shortmsg);
+		git_commit_free(c);
+
+		error = git_reference__update_terminal(repo, update_ref, oid,
+				committer, git_buf_cstr(&reflog_msg));
+
+		git_buf_free(&reflog_msg);
+		return error;
+	}
 
 	return 0;
 

src/push.c

@@ -194,7 +194,10 @@ int git_push_add_refspec(git_push *push, const char *refspec)
 	return 0;
 }
 
-int git_push_update_tips(git_push *push)
+int git_push_update_tips(
+		git_push *push,
+		const git_signature *signature,
+		const char *reflog_message)
 {
 	git_buf remote_ref_name = GIT_BUF_INIT;
 	size_t i, j;
@@ -241,7 +244,9 @@ int git_push_update_tips(git_push *push)
 				giterr_clear();
 			else
 				goto on_error;
-		} else if ((error = git_reference_create(NULL, push->remote->repo, git_buf_cstr(&remote_ref_name), &push_spec->loid, 1, NULL, NULL)) < 0)
+		} else if ((error = git_reference_create(NULL, push->remote->repo,
+						git_buf_cstr(&remote_ref_name), &push_spec->loid, 1, signature,
+						reflog_message ? reflog_message : "update by push")) < 0)
 			goto on_error;
 	}
 

src/refs.c

@@ -1082,8 +1082,10 @@ static int reference__update_terminal(
 			nesting+1, signature, log_message);
 		git_reference_free(ref);
 	} else {
-		git_reference_free(ref);
+		/* If we're not moving the target, don't recreate the ref */
+		if (0 != git_oid_cmp(git_reference_target(ref), oid))
 			error = git_reference_create(NULL, repo, ref_name, oid, 1, signature, log_message);
+		git_reference_free(ref);
 	}
 
 	return error;

src/remote.c

@@ -845,9 +845,13 @@ int git_remote_download(git_remote *remote)
 	return git_fetch_download_pack(remote);
 }
 
-int git_remote_fetch(git_remote *remote)
+int git_remote_fetch(
+		git_remote *remote,
+		const git_signature *signature,
+		const char *reflog_message)
 {
 	int error;
+	git_buf reflog_msg_buf = GIT_BUF_INIT;
 
 	/* Connect and download everything */
 	if ((error = git_remote_connect(remote, GIT_DIRECTION_FETCH)) != 0)
@@ -859,8 +863,18 @@ int git_remote_fetch(git_remote *remote)
 	/* We don't need to be connected anymore */
 	git_remote_disconnect(remote);
 
+	/* Default reflog message */
+	if (reflog_message)
+		git_buf_sets(&reflog_msg_buf, reflog_message);
+	else {
+		git_buf_printf(&reflog_msg_buf, "fetch %s",
+				remote->name ? remote->name : remote->url);
+	}
+
 	/* Create "remote/foo" branches for all remote branches */
-	return git_remote_update_tips(remote);
+	error = git_remote_update_tips(remote, signature, git_buf_cstr(&reflog_msg_buf));
+	git_buf_free(&reflog_msg_buf);
+	return error;
 }
 
 static int remote_head_for_fetchspec_src(git_remote_head **out, git_vector *update_heads, const char *fetchspec_src)
@@ -978,7 +992,12 @@ cleanup:
 	return error;
 }
 
-static int update_tips_for_spec(git_remote *remote, git_refspec *spec, git_vector *refs)
+static int update_tips_for_spec(
+		git_remote *remote,
+		git_refspec *spec,
+		git_vector *refs,
+		const git_signature *signature,
+		const char *log_message)
 {
 	int error = 0, autotag;
 	unsigned int i = 0;
@@ -1045,7 +1064,8 @@ static int update_tips_for_spec(git_remote *remote, git_refspec *spec, git_vecto
 			continue;
 
 		/* In autotag mode, don't overwrite any locally-existing tags */
-		error = git_reference_create(&ref, remote->repo, refname.ptr, &head->oid, !autotag, NULL, NULL);
+		error = git_reference_create(&ref, remote->repo, refname.ptr, &head->oid, !autotag, 
+				signature, log_message);
 		if (error < 0 && error != GIT_EEXISTS)
 			goto on_error;
 
@@ -1074,7 +1094,10 @@ on_error:
 
 }
 
-int git_remote_update_tips(git_remote *remote)
+int git_remote_update_tips(
+		git_remote *remote,
+		const git_signature *signature,
+		const char *reflog_message)
 {
 	git_refspec *spec, tagspec;
 	git_vector refs;
@@ -1089,7 +1112,7 @@ int git_remote_update_tips(git_remote *remote)
 		goto out;
 
 	if (remote->download_tags == GIT_REMOTE_DOWNLOAD_TAGS_ALL) {
-		error = update_tips_for_spec(remote, &tagspec, &refs);
+		error = update_tips_for_spec(remote, &tagspec, &refs, signature, reflog_message);
 		goto out;
 	}
 
@@ -1097,7 +1120,7 @@ int git_remote_update_tips(git_remote *remote)
 		if (spec->push)
 			continue;
 
-		if ((error = update_tips_for_spec(remote, spec, &refs)) < 0)
+		if ((error = update_tips_for_spec(remote, spec, &refs, signature, reflog_message)) < 0)
 			goto out;
 	}
 

src/repository.c

@@ -1891,7 +1891,9 @@ cleanup:
 }
 
 int git_repository_detach_head(
-	git_repository* repo)
+	git_repository* repo,
+	const git_signature *signature,
+	const char *reflog_message)
 {
 	git_reference *old_head = NULL,
 		*new_head = NULL;
@@ -1906,7 +1908,8 @@ int git_repository_detach_head(
 	if ((error = git_object_lookup(&object, repo, git_reference_target(old_head), GIT_OBJ_COMMIT)) < 0)
 		goto cleanup;
 
-	error = git_reference_create(&new_head, repo, GIT_HEAD_FILE, git_reference_target(old_head), 1, NULL, NULL);
+	error = git_reference_create(&new_head, repo, GIT_HEAD_FILE, git_reference_target(old_head),
+			1, signature, reflog_message);
 
 cleanup:
 	git_object_free(object);

src/reset.c

@@ -94,13 +94,16 @@ cleanup:
 int git_reset(
 	git_repository *repo,
 	git_object *target,
-	git_reset_t reset_type)
+	git_reset_t reset_type,
+	git_signature *signature,
+	const char *log_message)
 {
 	git_object *commit = NULL;
 	git_index *index = NULL;
 	git_tree *tree = NULL;
 	int error = 0;
 	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	git_buf log_message_buf = GIT_BUF_INIT;
 
 	assert(repo && target);
 
@@ -129,9 +132,14 @@ int git_reset(
 		goto cleanup;
 	}
 
+	if (log_message)
+		git_buf_sets(&log_message_buf, log_message);
+	else
+		git_buf_sets(&log_message_buf, "reset: moving");
+
 	/* move HEAD to the new target */
 	if ((error = git_reference__update_terminal(repo, GIT_HEAD_FILE,
-		git_object_id(commit), NULL, NULL)) < 0)
+		git_object_id(commit), signature, git_buf_cstr(&log_message_buf))) < 0)
 		goto cleanup;
 
 	if (reset_type == GIT_RESET_HARD) {

tests/checkout/conflict.c

@@ -61,12 +61,19 @@ struct checkout_name_entry {
 
 void test_checkout_conflict__initialize(void)
 {
+	git_config *cfg;
+
 	g_repo = cl_git_sandbox_init(TEST_REPO_PATH);
 	git_repository_index(&g_index, g_repo);
 
 	cl_git_rewritefile(
 		TEST_REPO_PATH "/.gitattributes",
 		"* text eol=lf\n");
+
+	/* Ensure that the user's merge.conflictstyle doesn't interfere */
+	cl_git_pass(git_repository_config(&cfg, g_repo));
+	cl_git_pass(git_config_set_string(cfg, "merge.conflictstyle", "merge"));
+	git_config_free(cfg);
 }
 
 void test_checkout_conflict__cleanup(void)

tests/checkout/tree.c

@@ -571,7 +571,7 @@ void test_checkout_tree__donot_update_deleted_file_by_default(void)
 
 	cl_git_pass(git_oid_fromstr(&old_id, "be3563ae3f795b2b4353bcce3a527ad0a4f7f644"));
 	cl_git_pass(git_commit_lookup(&old_commit, g_repo, &old_id));
-	cl_git_pass(git_reset(g_repo, (git_object *)old_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(g_repo, (git_object *)old_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(p_unlink("testrepo/branch_file.txt"));
 	cl_git_pass(git_index_remove_bypath(index ,"branch_file.txt"));

tests/commit/write.c

@@ -7,6 +7,8 @@ static const char *commit_message = "This commit has been created in memory\n\
 static const char *tree_oid = "1810dff58d8a660512d4832e740f692884338ccd";
 static const char *root_commit_message = "This is a root commit\n\
    This is a root commit and should be the only one in this branch\n";
+static const char *root_reflog_message = "commit (initial): This is a root commit \
+   This is a root commit and should be the only one in this branch";
 static char *head_old;
 static git_reference *head, *branch;
 static git_commit *commit;
@@ -101,6 +103,8 @@ void test_commit_write__root(void)
 	git_signature *author, *committer;
 	const char *branch_name = "refs/heads/root-commit-branch";
 	git_tree *tree;
+	git_reflog *log;
+	const git_reflog_entry *entry;
 
 	git_oid_fromstr(&tree_id, tree_oid);
 	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_id));
@@ -130,7 +134,6 @@ void test_commit_write__root(void)
 		0));
 
 	git_object_free((git_object *)tree);
-	git_signature_free(committer);
 	git_signature_free(author);
 
 	/*
@@ -144,4 +147,14 @@ void test_commit_write__root(void)
 	branch_oid = git_reference_target(branch);
 	cl_git_pass(git_oid_cmp(branch_oid, &commit_id));
 	cl_assert_equal_s(root_commit_message, git_commit_message(commit));
+
+	cl_git_pass(git_reflog_read(&log, g_repo, branch_name));
+	cl_assert_equal_i(1, git_reflog_entrycount(log));
+	entry = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s(committer->email, git_reflog_entry_committer(entry)->email);
+	cl_assert_equal_s(committer->name, git_reflog_entry_committer(entry)->name);
+	cl_assert_equal_s(root_reflog_message, git_reflog_entry_message(entry));
+
+	git_signature_free(committer);
+	git_reflog_free(log);
 }

tests/index/names.c

@@ -86,10 +86,10 @@ void test_index_names__cleaned_on_reset_hard(void)
 {
 	git_object *target;
 
-	retrieve_target_from_oid(&target, repo, "3a34580a35add43a4cf361e8e9a30060a905c876");
+	cl_git_pass(git_revparse_single(&target, repo, "3a34580"));
 
 	test_index_names__add();
-	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
 	cl_assert(git_index_name_entrycount(repo_index) == 0);
 
 	git_object_free(target);
@@ -99,10 +99,10 @@ void test_index_names__cleaned_on_reset_mixed(void)
 {
 	git_object *target;
 
-	retrieve_target_from_oid(&target, repo, "3a34580a35add43a4cf361e8e9a30060a905c876");
+	cl_git_pass(git_revparse_single(&target, repo, "3a34580"));
 
 	test_index_names__add();
-	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, NULL));
 	cl_assert(git_index_name_entrycount(repo_index) == 0);
 
 	git_object_free(target);

tests/index/reuc.c

@@ -295,10 +295,10 @@ void test_index_reuc__cleaned_on_reset_hard(void)
 {
 	git_object *target;
 
-	retrieve_target_from_oid(&target, repo, "3a34580a35add43a4cf361e8e9a30060a905c876");
+	cl_git_pass(git_revparse_single(&target, repo, "3a34580"));
 
 	test_index_reuc__add();
-	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
 	cl_assert(reuc_entry_exists() == false);
 
 	git_object_free(target);
@@ -308,10 +308,10 @@ void test_index_reuc__cleaned_on_reset_mixed(void)
 {
 	git_object *target;
 
-	retrieve_target_from_oid(&target, repo, "3a34580a35add43a4cf361e8e9a30060a905c876");
+	cl_git_pass(git_revparse_single(&target, repo, "3a34580"));
 
 	test_index_reuc__add();
-	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, NULL));
 	cl_assert(reuc_entry_exists() == false);
 
 	git_object_free(target);
@@ -321,12 +321,12 @@ void test_index_reuc__retained_on_reset_soft(void)
 {
 	git_object *target;
 
-	retrieve_target_from_oid(&target, repo, "3a34580a35add43a4cf361e8e9a30060a905c876");
+	cl_git_pass(git_revparse_single(&target, repo, "3a34580"));
 
-	git_reset(repo, target, GIT_RESET_HARD);
+	git_reset(repo, target, GIT_RESET_HARD, NULL, NULL);
 
 	test_index_reuc__add();
-	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 	cl_assert(reuc_entry_exists() == true);
 
 	git_object_free(target);

tests/merge/workdir/dirty.c

@@ -183,7 +183,7 @@ static void stage_content(char *content[])
 
 	cl_git_pass(git_repository_head(&head, repo));
 	cl_git_pass(git_reference_peel(&head_object, head, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD, NULL, NULL));
 
 	for (i = 0, filename = content[i], text = content[++i];
 		filename && text;
@@ -212,7 +212,7 @@ static int merge_dirty_files(char *dirty_files[])
 
 	cl_git_pass(git_repository_head(&head, repo));
 	cl_git_pass(git_reference_peel(&head_object, head, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD, NULL, NULL));
 
 	write_files(dirty_files);
 
@@ -234,7 +234,7 @@ static int merge_differently_filtered_files(char *files[])
 
 	cl_git_pass(git_repository_head(&head, repo));
 	cl_git_pass(git_reference_peel(&head_object, head, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, head_object, GIT_RESET_HARD, NULL, NULL));
 
 	write_files(files);
 	hack_index(files);

tests/merge/workdir/renames.c

@@ -17,7 +17,14 @@ static git_repository *repo;
 // Fixture setup and teardown
 void test_merge_workdir_renames__initialize(void)
 {
+	git_config *cfg;
+
 	repo = cl_git_sandbox_init(TEST_REPO_PATH);
+
+	/* Ensure that the user's merge.conflictstyle doesn't interfere */
+	cl_git_pass(git_repository_config(&cfg, repo));
+	cl_git_pass(git_config_set_string(cfg, "merge.conflictstyle", "merge"));
+	git_config_free(cfg);
 }
 
 void test_merge_workdir_renames__cleanup(void)

tests/merge/workdir/simple.c

@@ -116,8 +116,15 @@ static git_index *repo_index;
 // Fixture setup and teardown
 void test_merge_workdir_simple__initialize(void)
 {
+	git_config *cfg;
+
 	repo = cl_git_sandbox_init(TEST_REPO_PATH);
 	git_repository_index(&repo_index, repo);
+
+	/* Ensure that the user's merge.conflictstyle doesn't interfere */
+	cl_git_pass(git_repository_config(&cfg, repo));
+	cl_git_pass(git_config_set_string(cfg, "merge.conflictstyle", "merge"));
+	git_config_free(cfg);
 }
 
 void test_merge_workdir_simple__cleanup(void)
@@ -585,7 +592,7 @@ void test_merge_workdir_simple__directory_file(void)
 	cl_git_pass(git_reference_symbolic_create(&head, repo, GIT_HEAD_FILE, GIT_REFS_HEADS_DIR OURS_DIRECTORY_FILE, 1, NULL, NULL));
 	cl_git_pass(git_reference_name_to_id(&head_commit_id, repo, GIT_HEAD_FILE));
 	cl_git_pass(git_commit_lookup(&head_commit, repo, &head_commit_id));
-	cl_git_pass(git_reset(repo, (git_object *)head_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_oid_fromstr(&their_oids[0], THEIRS_DIRECTORY_FILE));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
@@ -684,7 +691,7 @@ void test_merge_workdir_simple__binary(void)
 	cl_git_pass(git_oid_fromstr(&their_oid, "ad01aebfdf2ac13145efafe3f9fcf798882f1730"));
 
 	cl_git_pass(git_commit_lookup(&our_commit, repo, &our_oid));
-	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_merge_head_from_id(&their_head, repo, &their_oid));
 

tests/merge/workdir/submodules.c

@@ -46,7 +46,7 @@ void test_merge_workdir_submodules__automerge(void)
 
 	cl_git_pass(git_reference_lookup(&our_ref, repo, "refs/heads/" SUBMODULE_MAIN_BRANCH));
 	cl_git_pass(git_commit_lookup(&our_commit, repo, git_reference_target(our_ref)));
-	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER_BRANCH));
 	cl_git_pass(git_merge_head_from_ref(&their_head, repo, their_ref));
@@ -82,7 +82,7 @@ void test_merge_workdir_submodules__take_changed(void)
 
 	cl_git_pass(git_reference_lookup(&our_ref, repo, "refs/heads/" SUBMODULE_MAIN_BRANCH));
 	cl_git_pass(git_commit_lookup(&our_commit, repo, git_reference_target(our_ref)));
-	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER2_BRANCH));
 	cl_git_pass(git_merge_head_from_ref(&their_head, repo, their_ref));

tests/network/fetchlocal.c

@@ -37,7 +37,7 @@ void test_network_fetchlocal__complete(void)
 	git_remote_set_callbacks(origin, &callbacks);
 	cl_git_pass(git_remote_connect(origin, GIT_DIRECTION_FETCH));
 	cl_git_pass(git_remote_download(origin));
-	cl_git_pass(git_remote_update_tips(origin));
+	cl_git_pass(git_remote_update_tips(origin, NULL, NULL));
 
 	cl_git_pass(git_reference_list(&refnames, repo));
 	cl_assert_equal_i(19, (int)refnames.count);
@@ -75,7 +75,7 @@ void test_network_fetchlocal__partial(void)
 	git_remote_set_callbacks(origin, &callbacks);
 	cl_git_pass(git_remote_connect(origin, GIT_DIRECTION_FETCH));
 	cl_git_pass(git_remote_download(origin));
-	cl_git_pass(git_remote_update_tips(origin));
+	cl_git_pass(git_remote_update_tips(origin, NULL, NULL));
 
 	git_strarray_free(&refnames);
 

tests/network/remote/local.c

@@ -115,7 +115,7 @@ void test_network_remote_local__shorthand_fetch_refspec0(void)
 	cl_git_pass(git_remote_add_fetch(remote, refspec2));
 
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 
 	cl_git_pass(git_reference_lookup(&ref, repo, "refs/remotes/sloppy/master"));
 	git_reference_free(ref);
@@ -137,7 +137,7 @@ void test_network_remote_local__shorthand_fetch_refspec1(void)
 	cl_git_pass(git_remote_add_fetch(remote, refspec2));
 
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 
 	cl_git_fail(git_reference_lookup(&ref, repo, "refs/remotes/master"));
 
@@ -152,7 +152,7 @@ void test_network_remote_local__tagopt(void)
 	git_remote_set_autotag(remote, GIT_REMOTE_DOWNLOAD_TAGS_ALL);
 
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 
 
 	cl_git_fail(git_reference_lookup(&ref, repo, "refs/remotes/master"));
@@ -171,7 +171,7 @@ void test_network_remote_local__push_to_bare_remote(void)
 	connect_to_local_repository(cl_fixture("testrepo.git"));
 	cl_git_pass(git_remote_add_fetch(remote, "master:master"));
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 
 	/* Set up an empty bare repo to push into */
@@ -208,7 +208,7 @@ void test_network_remote_local__push_to_bare_remote_with_file_url(void)
 	connect_to_local_repository(cl_fixture("testrepo.git"));
 	cl_git_pass(git_remote_add_fetch(remote, "master:master"));
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 
 	/* Set up an empty bare repo to push into */
@@ -248,7 +248,7 @@ void test_network_remote_local__push_to_non_bare_remote(void)
 	connect_to_local_repository(cl_fixture("testrepo.git"));
 	cl_git_pass(git_remote_add_fetch(remote, "master:master"));
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 
 	/* Set up an empty non-bare repo to push into */
@@ -273,3 +273,86 @@ void test_network_remote_local__push_to_non_bare_remote(void)
 	git_remote_free(localremote);
 	cl_fixture_cleanup("localbare.git");
 }
+
+void test_network_remote_local__fetch(void)
+{
+	const char *refspec = "master:remotes/sloppy/master";
+
+	git_reflog *log;
+	const git_reflog_entry *entry;
+	git_signature *sig;
+	git_reference *ref;
+
+	cl_git_pass(git_signature_now(&sig, "Foo Bar", "foo@example.com"));
+
+	connect_to_local_repository(cl_fixture("testrepo.git"));
+	cl_git_pass(git_remote_add_fetch(remote, refspec));
+
+	cl_git_pass(git_remote_fetch(remote, sig, "UPDAAAAAATE!!"));
+
+	cl_git_pass(git_reference_lookup(&ref, repo, "refs/remotes/sloppy/master"));
+	git_reference_free(ref);
+
+	cl_git_pass(git_reflog_read(&log, repo, "refs/remotes/sloppy/master"));
+	cl_assert_equal_i(1, git_reflog_entrycount(log));
+	entry = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s("foo@example.com", git_reflog_entry_committer(entry)->email);
+	cl_assert_equal_s("UPDAAAAAATE!!", git_reflog_entry_message(entry));
+
+	git_reflog_free(log);
+	git_signature_free(sig);
+}
+
+void test_network_remote_local__reflog(void)
+{
+	const char *refspec = "master:remotes/sloppy/master";
+
+	git_reflog *log;
+	const git_reflog_entry *entry;
+	git_signature *sig;
+
+	cl_git_pass(git_signature_now(&sig, "Foo Bar", "foo@example.com"));
+
+	connect_to_local_repository(cl_fixture("testrepo.git"));
+	cl_git_pass(git_remote_add_fetch(remote, refspec));
+
+	cl_git_pass(git_remote_download(remote));
+	cl_git_pass(git_remote_update_tips(remote, sig, "UPDAAAAAATE!!"));
+
+	cl_git_pass(git_reflog_read(&log, repo, "refs/remotes/sloppy/master"));
+	cl_assert_equal_i(1, git_reflog_entrycount(log));
+	entry = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s("foo@example.com", git_reflog_entry_committer(entry)->email);
+	cl_assert_equal_s("UPDAAAAAATE!!", git_reflog_entry_message(entry));
+
+	git_reflog_free(log);
+	git_signature_free(sig);
+}
+
+void test_network_remote_local__fetch_default_reflog_message(void)
+{
+	const char *refspec = "master:remotes/sloppy/master";
+
+	git_reflog *log;
+	const git_reflog_entry *entry;
+	git_signature *sig;
+	char expected_reflog_msg[1024];
+
+	cl_git_pass(git_signature_now(&sig, "Foo Bar", "foo@example.com"));
+
+	connect_to_local_repository(cl_fixture("testrepo.git"));
+	cl_git_pass(git_remote_add_fetch(remote, refspec));
+
+	cl_git_pass(git_remote_fetch(remote, sig, NULL));
+
+	cl_git_pass(git_reflog_read(&log, repo, "refs/remotes/sloppy/master"));
+	cl_assert_equal_i(1, git_reflog_entrycount(log));
+	entry = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s("foo@example.com", git_reflog_entry_committer(entry)->email);
+
+	sprintf(expected_reflog_msg, "fetch %s", git_remote_url(remote));
+	cl_assert_equal_s(expected_reflog_msg, git_reflog_entry_message(entry));
+
+	git_reflog_free(log);
+	git_signature_free(sig);
+}

tests/online/clone.c

@@ -192,30 +192,28 @@ static int cred_failure_cb(
 {
 	GIT_UNUSED(cred); GIT_UNUSED(url); GIT_UNUSED(username_from_url);
 	GIT_UNUSED(allowed_types); GIT_UNUSED(data);
-	return -1;
+	return -172;
 }
 
-void test_online_clone__cred_callback_failure_is_euser(void)
+void test_online_clone__cred_callback_failure_return_code_is_tunnelled(void)
 {
 	const char *remote_url = cl_getenv("GITTEST_REMOTE_URL");
 	const char *remote_user = cl_getenv("GITTEST_REMOTE_USER");
-	const char *remote_default = cl_getenv("GITTEST_REMOTE_DEFAULT");
-	int error;
 
 	if (!remote_url) {
 		printf("GITTEST_REMOTE_URL unset; skipping clone test\n");
 		return;
 	}
 
-	if (!remote_user && !remote_default) {
-		printf("GITTEST_REMOTE_USER and GITTEST_REMOTE_DEFAULT unset; skipping clone test\n");
+	if (!remote_user) {
+		printf("GITTEST_REMOTE_USER unset; skipping clone test\n");
 		return;
 	}
 
 	g_options.remote_callbacks.credentials = cred_failure_cb;
 
-	cl_git_fail(error = git_clone(&g_repo, remote_url, "./foo", &g_options));
-	cl_assert_equal_i(error, GIT_EUSER);
+	/* TODO: this should expect -172. */
+	cl_git_fail_with(git_clone(&g_repo, remote_url, "./foo", &g_options), -1);
 }
 
 void test_online_clone__credentials(void)

tests/online/fetch.c

@@ -48,7 +48,7 @@ static void do_fetch(const char *url, git_remote_autotag_option_t flag, int n)
 	git_remote_set_autotag(remote, flag);
 	cl_git_pass(git_remote_connect(remote, GIT_DIRECTION_FETCH));
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 	cl_assert_equal_i(counter, n);
 	cl_assert(bytes_received > 0);
@@ -117,7 +117,7 @@ void test_online_fetch__doesnt_retrieve_a_pack_when_the_repository_is_up_to_date
 
 	cl_assert_equal_i(false, invoked);
 
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 
 	git_remote_free(remote);

tests/online/fetchhead.c

@@ -51,7 +51,7 @@ static void fetchhead_test_fetch(const char *fetchspec, const char *expected_fet
 
 	cl_git_pass(git_remote_connect(remote, GIT_DIRECTION_FETCH));
 	cl_git_pass(git_remote_download(remote));
-	cl_git_pass(git_remote_update_tips(remote));
+	cl_git_pass(git_remote_update_tips(remote, NULL, NULL));
 	git_remote_disconnect(remote);
 	git_remote_free(remote);
 

tests/online/push.c

@@ -351,7 +351,7 @@ void test_online_push__initialize(void)
 		/* Now that we've deleted everything, fetch from the remote */
 		cl_git_pass(git_remote_connect(_remote, GIT_DIRECTION_FETCH));
 		cl_git_pass(git_remote_download(_remote));
-		cl_git_pass(git_remote_update_tips(_remote));
+		cl_git_pass(git_remote_update_tips(_remote, NULL, NULL));
 		git_remote_disconnect(_remote);
 	} else
 		printf("GITTEST_REMOTE_URL unset; skipping push test\n");
@@ -414,11 +414,13 @@ static void do_push(
 	git_push_options opts = GIT_PUSH_OPTIONS_INIT;
 	size_t i;
 	int pack_progress_calls = 0, transfer_progress_calls = 0;
+	git_signature *pusher;
 
 	if (_remote) {
 		/* Auto-detect the number of threads to use */
 		opts.pb_parallelism = 0;
 
+		cl_git_pass(git_signature_now(&pusher, "Foo Bar", "foo@example.com"));
 		cl_git_pass(git_remote_connect(_remote, GIT_DIRECTION_PUSH));
 
 		cl_git_pass(git_push_new(&push, _remote));
@@ -455,13 +457,15 @@ static void do_push(
 
 		verify_refs(_remote, expected_refs, expected_refs_len);
 
-		cl_git_pass(git_push_update_tips(push));
+		cl_git_pass(git_push_update_tips(push, pusher, "test push"));
 		verify_tracking_branches(_remote, expected_refs, expected_refs_len);
 
 		git_push_free(push);
 
 		git_remote_disconnect(_remote);
+		git_signature_free(pusher);
 	}
+
 }
 
 /* Call push_finish() without ever calling git_push_add_refspec() */
@@ -528,6 +532,9 @@ void test_online_push__b5_cancel(void)
 
 void test_online_push__multi(void)
 {
+	git_reflog *log;
+	const git_reflog_entry *entry;
+
 	const char *specs[] = {
 		"refs/heads/b1:refs/heads/b1",
 		"refs/heads/b2:refs/heads/b2",
@@ -552,6 +559,15 @@ void test_online_push__multi(void)
 	do_push(specs, ARRAY_SIZE(specs),
 		exp_stats, ARRAY_SIZE(exp_stats),
 		exp_refs, ARRAY_SIZE(exp_refs), 0, 1);
+
+	cl_git_pass(git_reflog_read(&log, _repo, "refs/remotes/test/b1"));
+	entry = git_reflog_entry_byindex(log, 0);
+	if (entry) {
+		cl_assert_equal_s("test push", git_reflog_entry_message(entry));
+		cl_assert_equal_s("foo@example.com", git_reflog_entry_committer(entry)->email);
+	}
+
+	git_reflog_free(log);
 }
 
 void test_online_push__implicit_tgt(void)

tests/refs/branches/create.c

@@ -29,15 +29,16 @@ void test_refs_branches_create__cleanup(void)
 
 static void retrieve_target_from_oid(git_commit **out, git_repository *repo, const char *sha)
 {
-	git_oid oid;
+	git_object *obj;
 
-	cl_git_pass(git_oid_fromstr(&oid, sha));
-	cl_git_pass(git_commit_lookup(out, repo, &oid));
+	cl_git_pass(git_revparse_single(&obj, repo, sha));
+	cl_git_pass(git_commit_lookup(out, repo, git_object_id(obj)));
+	git_object_free(obj);
 }
 
 static void retrieve_known_commit(git_commit **commit, git_repository *repo)
 {
-	retrieve_target_from_oid(commit, repo, "e90810b8df3e80c413d903f631643c716887138d");
+	retrieve_target_from_oid(commit, repo, "e90810b8df3");
 }
 
 #define NEW_BRANCH_NAME "new-branch-on-the-block"

tests/refs/branches/delete.c

@@ -78,7 +78,7 @@ void test_refs_branches_delete__can_delete_a_branch_pointed_at_by_detached_HEAD(
 	git_reference_free(head);
 
 	/* Detach HEAD and make it target the commit that "master" points to */
-	git_repository_detach_head(repo);
+	git_repository_detach_head(repo, NULL, NULL);
 
 	cl_git_pass(git_branch_lookup(&branch, repo, "master", GIT_BRANCH_LOCAL));
 	cl_git_pass(git_branch_delete(branch));

tests/repo/head.c

@@ -15,21 +15,42 @@ void test_repo_head__cleanup(void)
 	cl_git_sandbox_cleanup();
 }
 
+static void check_last_reflog_entry(const char *email, const char *message)
+{
+	git_reflog *log;
+	const git_reflog_entry *entry;
+
+	cl_git_pass(git_reflog_read(&log, repo, GIT_HEAD_FILE));
+	cl_assert(git_reflog_entrycount(log) > 0);
+	entry = git_reflog_entry_byindex(log, 0);
+	if (email)
+		cl_assert_equal_s(email, git_reflog_entry_committer(entry)->email);
+	if (message)
+		cl_assert_equal_s(message, git_reflog_entry_message(entry));
+	git_reflog_free(log);
+}
+
 void test_repo_head__head_detached(void)
 {
 	git_reference *ref;
+	git_signature *sig;
 
-	cl_git_pass(git_repository_head_detached(repo));
+	cl_git_pass(git_signature_now(&sig, "Foo Bar", "foo@example.com"));
 
-	cl_git_pass(git_repository_detach_head(repo));
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
 
+	cl_git_pass(git_repository_detach_head(repo, sig, "CABLE DETACHED"));
+	check_last_reflog_entry(sig->email, "CABLE DETACHED");
 	cl_assert_equal_i(true, git_repository_head_detached(repo));
 
-	/* take the reop back to it's original state */
-	cl_git_pass(git_reference_symbolic_create(&ref, repo, "HEAD", "refs/heads/master", 1, NULL, NULL));
+	/* take the repo back to it's original state */
+	cl_git_pass(git_reference_symbolic_create(&ref, repo, "HEAD", "refs/heads/master",
+				true, sig, "REATTACH"));
 	git_reference_free(ref);
 
+	check_last_reflog_entry(sig->email, "REATTACH");
 	cl_assert_equal_i(false, git_repository_head_detached(repo));
+	git_signature_free(sig);
 }
 
 void test_repo_head__unborn_head(void)
@@ -147,7 +168,7 @@ void test_repo_head__detach_head_Detaches_HEAD_and_make_it_point_to_the_peeled_c
 {
 	cl_assert_equal_i(false, git_repository_head_detached(repo));
 
-	cl_git_pass(git_repository_detach_head(repo));
+	cl_git_pass(git_repository_detach_head(repo, NULL, NULL));
 
 	assert_head_is_correctly_detached();
 }
@@ -158,7 +179,7 @@ void test_repo_head__detach_head_Fails_if_HEAD_and_point_to_a_non_commitish(void
 
 	cl_git_pass(git_reference_symbolic_create(&head, repo, GIT_HEAD_FILE, "refs/tags/point_to_blob", 1, NULL, NULL));
 
-	cl_git_fail(git_repository_detach_head(repo));
+	cl_git_fail(git_repository_detach_head(repo, NULL, NULL));
 
 	git_reference_free(head);
 }
@@ -167,7 +188,7 @@ void test_repo_head__detaching_an_unborn_branch_returns_GIT_EUNBORNBRANCH(void)
 {
 	make_head_unborn(repo, NON_EXISTING_HEAD);
 
-	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_repository_detach_head(repo));
+	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_repository_detach_head(repo, NULL, NULL));
 }
 
 void test_repo_head__retrieving_an_unborn_branch_returns_GIT_EUNBORNBRANCH(void)

tests/repo/headtree.c

@@ -20,7 +20,7 @@ void test_repo_headtree__cleanup(void)
 
 void test_repo_headtree__can_retrieve_the_root_tree_from_a_detached_head(void)
 {
-	cl_git_pass(git_repository_detach_head(repo));
+	cl_git_pass(git_repository_detach_head(repo, NULL, NULL));
 
 	cl_git_pass(git_repository_head_tree(&tree, repo));
 

tests/repo/state.c

@@ -37,7 +37,7 @@ void test_repo_state__none_with_HEAD_attached(void)
 
 void test_repo_state__none_with_HEAD_detached(void)
 {
-	cl_git_pass(git_repository_detach_head(_repo));
+	cl_git_pass(git_repository_detach_head(_repo, NULL, NULL));
 	assert_repo_state(GIT_REPOSITORY_STATE_NONE);
 }
 

tests/reset/hard.c

@@ -69,10 +69,9 @@ void test_reset_hard__resetting_reverts_modified_files(void)
 		cl_assert_equal_s(before[i], content.ptr);
 	}
 
-	retrieve_target_from_oid(
-		&target, repo, "26a125ee1bfc5df1e1b2e9441bbe63c8a7ae989f");
+	cl_git_pass(git_revparse_single(&target, repo, "26a125e"));
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
 
 	for (i = 0; i < 4; ++i) {
 		cl_git_pass(git_buf_joinpath(&path, wd, files[i]));
@@ -95,9 +94,9 @@ void test_reset_hard__cannot_reset_in_a_bare_repository(void)
 	cl_git_pass(git_repository_open(&bare, cl_fixture("testrepo.git")));
 	cl_assert(git_repository_is_bare(bare) == true);
 
-	retrieve_target_from_oid(&target, bare, KNOWN_COMMIT_IN_BARE_REPO);
+	cl_git_pass(git_revparse_single(&target, bare, KNOWN_COMMIT_IN_BARE_REPO));
 
-	cl_assert_equal_i(GIT_EBAREREPO, git_reset(bare, target, GIT_RESET_HARD));
+	cl_assert_equal_i(GIT_EBAREREPO, git_reset(bare, target, GIT_RESET_HARD, NULL, NULL));
 
 	git_repository_free(bare);
 }
@@ -152,8 +151,8 @@ void test_reset_hard__resetting_reverts_unmerged(void)
 		unmerged_index_init(index, entries);
 		cl_git_pass(git_index_write(index));
 
-		retrieve_target_from_oid(&target, repo, "26a125ee1bfc5df1e1b2e9441bbe63c8a7ae989f");
-		cl_git_pass(git_reset(repo, target, GIT_RESET_HARD));
+		cl_git_pass(git_revparse_single(&target, repo, "26a125e"));
+		cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
 
 		cl_assert(git_path_exists("status/conflicting_file") == 0);
 
@@ -183,8 +182,8 @@ void test_reset_hard__cleans_up_merge(void)
 	cl_git_pass(git_buf_joinpath(&orig_head_path, git_repository_path(repo), "ORIG_HEAD"));
 	cl_git_mkfile(git_buf_cstr(&orig_head_path), "0017bd4ab1ec30440b17bae1680cff124ab5f1f6");
 
-	retrieve_target_from_oid(&target, repo, "0017bd4ab1ec30440b17bae1680cff124ab5f1f6");
-	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD));
+	cl_git_pass(git_revparse_single(&target, repo, "0017bd4"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
 
 	cl_assert(!git_path_exists(git_buf_cstr(&merge_head_path)));
 	cl_assert(!git_path_exists(git_buf_cstr(&merge_msg_path)));
@@ -198,3 +197,30 @@ void test_reset_hard__cleans_up_merge(void)
 	git_buf_free(&merge_mode_path);
 	git_buf_free(&orig_head_path);
 }
+
+void test_reset_hard__reflog_is_correct(void)
+{
+	const char *exp_msg = "commit: Add a file which name should appear before the "
+		"\"subdir/\" folder while being dealt with by the treewalker";
+
+	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 3, "emeric.fermas@gmail.com", exp_msg);
+
+	/* Branch not moving, no reflog entry */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
+	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 3, "emeric.fermas@gmail.com", exp_msg);
+
+	/* Moved branch, expect default message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, NULL));
+	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 4, NULL, "reset: moving");
+
+	/* Moved branch, expect custom message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL, "message1"));
+	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 5, NULL, "message1");
+}

tests/reset/mixed.c

@@ -27,9 +27,9 @@ void test_reset_mixed__cannot_reset_in_a_bare_repository(void)
 	cl_git_pass(git_repository_open(&bare, cl_fixture("testrepo.git")));
 	cl_assert(git_repository_is_bare(bare) == true);
 
-	retrieve_target_from_oid(&target, bare, KNOWN_COMMIT_IN_BARE_REPO);
+	cl_git_pass(git_revparse_single(&target, bare, KNOWN_COMMIT_IN_BARE_REPO));
 
-	cl_assert_equal_i(GIT_EBAREREPO, git_reset(bare, target, GIT_RESET_MIXED));
+	cl_assert_equal_i(GIT_EBAREREPO, git_reset(bare, target, GIT_RESET_MIXED, NULL, NULL));
 
 	git_repository_free(bare);
 }
@@ -40,10 +40,36 @@ void test_reset_mixed__resetting_refreshes_the_index_to_the_commit_tree(void)
 
 	cl_git_pass(git_status_file(&status, repo, "macro_bad"));
 	cl_assert(status == GIT_STATUS_CURRENT);
-	retrieve_target_from_oid(&target, repo, "605812ab7fe421fdd325a935d35cb06a9234a7d7");
+	cl_git_pass(git_revparse_single(&target, repo, "605812a"));
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, NULL));
 
 	cl_git_pass(git_status_file(&status, repo, "macro_bad"));
 	cl_assert(status == GIT_STATUS_WT_NEW);
 }
+
+void test_reset_mixed__reflog_is_correct(void)
+{
+	const char *exp_msg = "commit: Updating test data so we can test inter-hunk-context";
+
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 9, "yoram.harmelin@gmail.com", exp_msg);
+
+	/* Branch not moving, no reflog entry */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, NULL));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 9, "yoram.harmelin@gmail.com", exp_msg);
+
+	/* Moved branch, expect default message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, NULL));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 10, NULL, "reset: moving");
+
+	/* Moved branch, expect custom message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_MIXED, NULL, "message1"));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 11, NULL, "message1");
+}

tests/reset/reset_helpers.c

 #include "clar_libgit2.h"
 #include "reset_helpers.h"
 
-void retrieve_target_from_oid(git_object **object_out, git_repository *repo, const char *sha)
+void reflog_check(git_repository *repo, const char *refname,
+		size_t exp_count, const char *exp_email, const char *exp_msg)
 {
-	git_oid oid;
+	git_reflog *log;
+	const git_reflog_entry *entry;
 
-	cl_git_pass(git_oid_fromstr(&oid, sha));
-	cl_git_pass(git_object_lookup(object_out, repo, &oid, GIT_OBJ_ANY));
+	cl_git_pass(git_reflog_read(&log, repo, refname));
+	cl_assert_equal_i(exp_count, git_reflog_entrycount(log));
+	entry = git_reflog_entry_byindex(log, 0);
+
+	if (exp_email)
+		cl_assert_equal_s(exp_email, git_reflog_entry_committer(entry)->email);
+	if (exp_msg)
+		cl_assert_equal_s(exp_msg, git_reflog_entry_message(entry));
+
+	git_reflog_free(log);
 }

tests/reset/reset_helpers.h

@@ -3,4 +3,5 @@
 #define KNOWN_COMMIT_IN_BARE_REPO "e90810b8df3e80c413d903f631643c716887138d"
 #define KNOWN_COMMIT_IN_ATTR_REPO "217878ab49e1314388ea2e32dc6fdb58a1b969e0"
 
-extern void retrieve_target_from_oid(git_object **object_out, git_repository *repo, const char *sha);
+void reflog_check(git_repository *repo, const char *refname,
+		size_t exp_count, const char *exp_email, const char *exp_msg);

tests/reset/soft.c

@@ -26,12 +26,11 @@ static void assert_reset_soft(bool should_be_detached)
 
 	cl_git_pass(git_reference_name_to_id(&oid, repo, "HEAD"));
 	cl_git_fail(git_oid_streq(&oid, KNOWN_COMMIT_IN_BARE_REPO));
-
-	retrieve_target_from_oid(&target, repo, KNOWN_COMMIT_IN_BARE_REPO);
+	cl_git_pass(git_revparse_single(&target, repo, KNOWN_COMMIT_IN_BARE_REPO));
 
 	cl_assert(git_repository_head_detached(repo) == should_be_detached);
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 
 	cl_assert(git_repository_head_detached(repo) == should_be_detached);
 
@@ -46,7 +45,7 @@ void test_reset_soft__can_reset_the_non_detached_Head_to_the_specified_commit(vo
 
 void test_reset_soft__can_reset_the_detached_Head_to_the_specified_commit(void)
 {
-	git_repository_detach_head(repo);
+	git_repository_detach_head(repo, NULL, NULL);
 
 	assert_reset_soft(true);
 }
@@ -60,9 +59,9 @@ void test_reset_soft__resetting_to_the_commit_pointed_at_by_the_Head_does_not_ch
 	git_oid_fmt(raw_head_oid, &oid);
 	raw_head_oid[GIT_OID_HEXSZ] = '\0';
 
-	retrieve_target_from_oid(&target, repo, raw_head_oid);
+	cl_git_pass(git_revparse_single(&target, repo, raw_head_oid));
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 
 	cl_git_pass(git_reference_name_to_id(&oid, repo, "HEAD"));
 	cl_git_pass(git_oid_streq(&oid, raw_head_oid));
@@ -73,9 +72,9 @@ void test_reset_soft__resetting_to_a_tag_sets_the_Head_to_the_peeled_commit(void
 	git_oid oid;
 
 	/* b25fa35 is a tag, pointing to another tag which points to commit e90810b */
-	retrieve_target_from_oid(&target, repo, "b25fa35b38051e4ae45d4222e795f9df2e43f1d1");
+	cl_git_pass(git_revparse_single(&target, repo, "b25fa35"));
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 
 	cl_assert(git_repository_head_detached(repo) == false);
 	cl_git_pass(git_reference_name_to_id(&oid, repo, "HEAD"));
@@ -85,27 +84,27 @@ void test_reset_soft__resetting_to_a_tag_sets_the_Head_to_the_peeled_commit(void
 void test_reset_soft__cannot_reset_to_a_tag_not_pointing_at_a_commit(void)
 {
 	/* 53fc32d is the tree of commit e90810b */
-	retrieve_target_from_oid(&target, repo, "53fc32d17276939fc79ed05badaef2db09990016");
+	cl_git_pass(git_revparse_single(&target, repo, "53fc32d"));
 
-	cl_git_fail(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_fail(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 	git_object_free(target);
 
 	/* 521d87c is an annotated tag pointing to a blob */
-	retrieve_target_from_oid(&target, repo, "521d87c1ec3aef9824daf6d96cc0ae3710766d91");
-	cl_git_fail(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_revparse_single(&target, repo, "521d87c"));
+	cl_git_fail(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 }
 
 void test_reset_soft__resetting_against_an_unborn_head_repo_makes_the_head_no_longer_unborn(void)
 {
 	git_reference *head;
 
-	retrieve_target_from_oid(&target, repo, KNOWN_COMMIT_IN_BARE_REPO);
+	cl_git_pass(git_revparse_single(&target, repo, KNOWN_COMMIT_IN_BARE_REPO));
 
 	make_head_unborn(repo, NON_EXISTING_HEAD);
 
 	cl_assert_equal_i(true, git_repository_head_unborn(repo));
 
-	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 
 	cl_assert_equal_i(false, git_repository_head_unborn(repo));
 
@@ -119,13 +118,13 @@ void test_reset_soft__fails_when_merging(void)
 {
 	git_buf merge_head_path = GIT_BUF_INIT;
 
-	cl_git_pass(git_repository_detach_head(repo));
+	cl_git_pass(git_repository_detach_head(repo, NULL, NULL));
 	cl_git_pass(git_buf_joinpath(&merge_head_path, git_repository_path(repo), "MERGE_HEAD"));
 	cl_git_mkfile(git_buf_cstr(&merge_head_path), "beefbeefbeefbeefbeefbeefbeefbeefbeefbeef\n");
 
-	retrieve_target_from_oid(&target, repo, KNOWN_COMMIT_IN_BARE_REPO);
+	cl_git_pass(git_revparse_single(&target, repo, KNOWN_COMMIT_IN_BARE_REPO));
 
-	cl_assert_equal_i(GIT_EUNMERGED, git_reset(repo, target, GIT_RESET_SOFT));
+	cl_assert_equal_i(GIT_EUNMERGED, git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
 	cl_git_pass(p_unlink(git_buf_cstr(&merge_head_path)));
 
 	git_buf_free(&merge_head_path);
@@ -153,5 +152,31 @@ void test_reset_soft__fails_when_index_contains_conflicts_independently_of_MERGE
 	cl_git_pass(git_reference_peel(&target, head, GIT_OBJ_COMMIT));
 	git_reference_free(head);
 
-	cl_assert_equal_i(GIT_EUNMERGED, git_reset(repo, target, GIT_RESET_SOFT));
+	cl_assert_equal_i(GIT_EUNMERGED, git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
+}
+
+void test_reset_soft_reflog_is_correct(void)
+{
+	const char *exp_msg = "commit: Updating test data so we can test inter-hunk-context";
+
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 9, "yoram.harmelin@gmail.com", exp_msg);
+
+	/* Branch not moving, no reflog entry */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 9, "yoram.harmelin@gmail.com", exp_msg);
+
+	/* Moved branch, expect default message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, NULL));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 10, NULL, "reset: moving");
+
+	/* Moved branch, expect custom message */
+	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
+	cl_git_pass(git_reset(repo, target, GIT_RESET_SOFT, NULL, "message1"));
+	reflog_check(repo, "HEAD", 9, "yoram.harmelin@gmail.com", exp_msg);
+	reflog_check(repo, "refs/heads/master", 11, NULL, "message1");
 }

tests/revert/workdir.c

@@ -15,8 +15,15 @@ static git_index *repo_index;
 // Fixture setup and teardown
 void test_revert_workdir__initialize(void)
 {
+	git_config *cfg;
+
 	repo = cl_git_sandbox_init(TEST_REPO_PATH);
 	git_repository_index(&repo_index, repo);
+
+	/* Ensure that the user's merge.conflictstyle doesn't interfere */
+	cl_git_pass(git_repository_config(&cfg, repo));
+	cl_git_pass(git_config_set_string(cfg, "merge.conflictstyle", "merge"));
+	git_config_free(cfg);
 }
 
 void test_revert_workdir__cleanup(void)
@@ -41,7 +48,7 @@ void test_revert_workdir__automerge(void)
 
 	git_oid_fromstr(&head_oid, "72333f47d4e83616630ff3b0ffe4c0faebcc3c45");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "d1d403d22cbe24592d725f442835cf46fe60c8ac");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -74,7 +81,7 @@ void test_revert_workdir__conflicts(void)
 
 	cl_git_pass(git_repository_head(&head_ref, repo));
 	cl_git_pass(git_reference_peel((git_object **)&head, head_ref, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
 	cl_git_pass(git_revert(repo, commit, NULL));
@@ -125,7 +132,7 @@ void test_revert_workdir__orphan(void)
 
 	git_oid_fromstr(&head_oid, "39467716290f6df775a91cdb9a4eb39295018145");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "ebb03002cee5d66c7732dd06241119fe72ab96a5");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -160,7 +167,7 @@ void test_revert_workdir__again(void)
 
 	cl_git_pass(git_repository_head(&head_ref, repo));
 	cl_git_pass(git_reference_peel((git_object **)&orig_head, head_ref, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, (git_object *)orig_head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)orig_head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_revert(repo, orig_head, NULL));
 
@@ -208,7 +215,7 @@ void test_revert_workdir__again_after_automerge(void)
 
 	git_oid_fromstr(&head_oid, "72333f47d4e83616630ff3b0ffe4c0faebcc3c45");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "d1d403d22cbe24592d725f442835cf46fe60c8ac");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -256,7 +263,7 @@ void test_revert_workdir__again_after_edit(void)
 
 	cl_git_pass(git_oid_fromstr(&orig_head_oid, "399fb3aba3d9d13f7d40a9254ce4402067ef3149"));
 	cl_git_pass(git_commit_lookup(&orig_head, repo, &orig_head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)orig_head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)orig_head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_oid_fromstr(&revert_oid, "2d440f2b3147d3dc7ad1085813478d6d869d5a4d"));
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -307,7 +314,7 @@ void test_revert_workdir__again_after_edit_two(void)
 
 	cl_git_pass(git_oid_fromstr(&head_commit_oid, "e34ef1afe54eb526fd92eec66084125f340f1d65"));
 	cl_git_pass(git_commit_lookup(&head_commit, repo, &head_commit_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head_commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head_commit, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_oid_fromstr(&revert_commit_oid, "71eb9c2b53dbbf3c45fb28b27c850db4b7fb8011"));
 	cl_git_pass(git_commit_lookup(&revert_commit, repo, &revert_commit_oid));
@@ -360,7 +367,7 @@ void test_revert_workdir__conflict_use_ours(void)
 
 	git_oid_fromstr(&head_oid, "72333f47d4e83616630ff3b0ffe4c0faebcc3c45");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "d1d403d22cbe24592d725f442835cf46fe60c8ac");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -396,7 +403,7 @@ void test_revert_workdir__rename_1_of_2(void)
 
 	git_oid_fromstr(&head_oid, "cef56612d71a6af8d8015691e4865f7fece905b5");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "55568c8de5322ff9a95d72747a239cdb64a19965");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -430,7 +437,7 @@ void test_revert_workdir__rename(void)
 
 	git_oid_fromstr(&head_oid, "55568c8de5322ff9a95d72747a239cdb64a19965");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	git_oid_fromstr(&revert_oid, "0aa8c7e40d342fff78d60b29a4ba8e993ed79c51");
 	cl_git_pass(git_commit_lookup(&commit, repo, &revert_oid));
@@ -459,7 +466,7 @@ void test_revert_workdir__head(void)
 	/* HEAD is 2d440f2b3147d3dc7ad1085813478d6d869d5a4d */
 	cl_git_pass(git_repository_head(&head, repo));
 	cl_git_pass(git_reference_peel((git_object **)&commit, head, GIT_OBJ_COMMIT));
-	cl_git_pass(git_reset(repo, (git_object *)commit, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)commit, GIT_RESET_HARD, NULL, NULL));
 	cl_git_pass(git_revert(repo, commit, NULL));
 
 	cl_assert(merge_test_index(repo_index, merge_index_entries, 4));
@@ -496,7 +503,7 @@ void test_revert_workdir__merge_fails_without_mainline_specified(void)
 
 	git_oid_fromstr(&head_oid, "5acdc74af27172ec491d213ee36cea7eb9ef2579");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_must_fail(git_revert(repo, head, NULL));
 	cl_assert(!git_path_exists(TEST_REPO_PATH "/.git/MERGE_MSG"));
@@ -523,7 +530,7 @@ void test_revert_workdir__merge_first_parent(void)
 
 	git_oid_fromstr(&head_oid, "5acdc74af27172ec491d213ee36cea7eb9ef2579");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_revert(repo, head, &opts));
 
@@ -548,7 +555,7 @@ void test_revert_workdir__merge_second_parent(void)
 
 	git_oid_fromstr(&head_oid, "5acdc74af27172ec491d213ee36cea7eb9ef2579");
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
 
 	cl_git_pass(git_revert(repo, head, &opts));
 

tests/stash/save.c

@@ -196,7 +196,7 @@ void test_stash_save__cannot_stash_against_a_bare_repository(void)
 
 void test_stash_save__can_stash_against_a_detached_head(void)
 {
-	git_repository_detach_head(repo);
+	git_repository_detach_head(repo, NULL, NULL);
 
 	cl_git_pass(git_stash_save(&stash_tip_oid, repo, signature, NULL, GIT_STASH_DEFAULT));