[PATCH 11/11] revert: Implement --abort processing

[Ramkumar Ramachandra <artagnon@xxxxxxxxx>]

Signed-off-by: Ramkumar Ramachandra <artagnon@xxxxxxxxx>
---
 builtin/revert.c |   51 +++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 47 insertions(+), 4 deletions(-)

diff --git a/builtin/revert.c b/builtin/revert.c
index 0720721..c050d4f 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -743,6 +743,51 @@ static int pick_commits(void)
 	return persist_todo_done(res, revs.commits, done_list);
 }
 
+static int process_args(int argc, const char **argv)
+{
+	const char *me;
+	int fd;
+
+	parse_args(argc, argv);
+	me = (cmd_opts.action == REVERT ? "revert" : "cherry-pick");
+	if (cmd_opts.abort_oper) {
+		const char *args[3] = {NULL, NULL, NULL};
+		char head[DEFAULT_ABBREV];
+
+		args[0] = "rerere";
+		args[1] = "clear";
+		cmd_rerere(2, args, NULL);
+
+		if (!file_exists(HEAD_FILE))
+			goto error;
+
+		if ((fd = open(HEAD_FILE, O_RDONLY, 0666)) < 0)
+			return error_errno(_("Could not open '%s' for reading"), HEAD_FILE);
+		if (xread(fd, head, DEFAULT_ABBREV) < DEFAULT_ABBREV)
+			return error_errno(_("Corrupt '%s'"), HEAD_FILE);
+		close(fd);
+
+		args[0] = "reset";
+		args[1] = "--hard";
+		args[2] = head;
+		return cmd_reset(3, args, NULL);
+	}
+	else if (cmd_opts.skip_oper) {
+		if (!file_exists(TODO_FILE))
+			goto error;
+		return 0;
+	}
+	else if (cmd_opts.continue_oper) {
+		if (!file_exists(TODO_FILE))
+			goto error;
+		return 0;
+	}
+
+	return pick_commits();
+error:
+	return error(_("No %s in progress"), me);
+}
+
 int cmd_revert(int argc, const char **argv, const char *prefix)
 {
 	if (isatty(0))
@@ -752,9 +797,8 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
 	memset(&cmd_opts, 0, sizeof(cmd_opts));
 	cmd_opts.action = REVERT;
 	setenv(GIT_REFLOG_ACTION, "revert", 0);
-	parse_args(argc, argv);
 
-	return pick_commits();
+	return process_args(argc, argv);
 }
 
 int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
@@ -763,7 +807,6 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
 	memset(&cmd_opts, 0, sizeof(cmd_opts));
 	cmd_opts.action = CHERRY_PICK;
 	setenv(GIT_REFLOG_ACTION, "cherry-pick", 0);
-	parse_args(argc, argv);
 
-	return pick_commits();
+	return process_args(argc, argv);
 }
-- 
1.7.4.rc1.7.g2cf08.dirty

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