[PATCH/RFC/GSoC 03/17] builtin-rebase: implement skeletal builtin rebase

[Paul Tan <pyokagan@gmail.com>]

Signed-off-by: Paul Tan <pyokagan@gmail.com>
---
 Makefile         |  5 +----
 builtin.h        |  1 +
 builtin/rebase.c | 31 +++++++++++++++++++++++++++++++
 git.c            |  1 +
 4 files changed, 34 insertions(+), 4 deletions(-)
 create mode 100644 builtin/rebase.c

diff --git a/Makefile b/Makefile
index 24bef8d..ad98714 100644
--- a/Makefile
+++ b/Makefile
@@ -496,7 +496,6 @@ SCRIPT_SH += git-merge-one-file.sh
 SCRIPT_SH += git-merge-resolve.sh
 SCRIPT_SH += git-mergetool.sh
 SCRIPT_SH += git-quiltimport.sh
-SCRIPT_SH += git-rebase.sh
 SCRIPT_SH += git-remote-testgit.sh
 SCRIPT_SH += git-request-pull.sh
 SCRIPT_SH += git-stash.sh
@@ -505,9 +504,6 @@ SCRIPT_SH += git-web--browse.sh
 
 SCRIPT_LIB += git-mergetool--lib
 SCRIPT_LIB += git-parse-remote
-SCRIPT_LIB += git-rebase--am
-SCRIPT_LIB += git-rebase--interactive
-SCRIPT_LIB += git-rebase--merge
 SCRIPT_LIB += git-sh-setup
 SCRIPT_LIB += git-sh-i18n
 
@@ -909,6 +905,7 @@ BUILTIN_OBJS += builtin/prune.o
 BUILTIN_OBJS += builtin/pull.o
 BUILTIN_OBJS += builtin/push.o
 BUILTIN_OBJS += builtin/read-tree.o
+BUILTIN_OBJS += builtin/rebase.o
 BUILTIN_OBJS += builtin/receive-pack.o
 BUILTIN_OBJS += builtin/reflog.o
 BUILTIN_OBJS += builtin/remote.o
diff --git a/builtin.h b/builtin.h
index 6b95006..a184a58 100644
--- a/builtin.h
+++ b/builtin.h
@@ -102,6 +102,7 @@ extern int cmd_prune_packed(int argc, const char **argv, const char *prefix);
 extern int cmd_pull(int argc, const char **argv, const char *prefix);
 extern int cmd_push(int argc, const char **argv, const char *prefix);
 extern int cmd_read_tree(int argc, const char **argv, const char *prefix);
+extern int cmd_rebase(int argc, const char **argv, const char *prefix);
 extern int cmd_receive_pack(int argc, const char **argv, const char *prefix);
 extern int cmd_reflog(int argc, const char **argv, const char *prefix);
 extern int cmd_remote(int argc, const char **argv, const char *prefix);
diff --git a/builtin/rebase.c b/builtin/rebase.c
new file mode 100644
index 0000000..04cc1bd
--- /dev/null
+++ b/builtin/rebase.c
@@ -0,0 +1,31 @@
+/*
+ * Builtin "git rebase"
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "parse-options.h"
+
+static int git_rebase_config(const char *k, const char *v, void *cb)
+{
+	return git_default_config(k, v, NULL);
+}
+
+int cmd_rebase(int argc, const char **argv, const char *prefix)
+{
+	const char * const usage[] = {
+		N_("git rebase [options]"),
+		NULL
+	};
+	struct option options[] = {
+		OPT_END()
+	};
+
+	git_config(git_rebase_config, NULL);
+
+	argc = parse_options(argc, argv, prefix, options, usage, 0);
+
+	if (read_cache_preload(NULL) < 0)
+		die(_("failed to read the index"));
+
+	return 0;
+}
diff --git a/git.c b/git.c
index 6cc0c07..f9b7033 100644
--- a/git.c
+++ b/git.c
@@ -452,6 +452,7 @@ static struct cmd_struct commands[] = {
 	{ "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE },
 	{ "push", cmd_push, RUN_SETUP },
 	{ "read-tree", cmd_read_tree, RUN_SETUP },
+	{ "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE },
 	{ "receive-pack", cmd_receive_pack },
 	{ "reflog", cmd_reflog, RUN_SETUP },
 	{ "remote", cmd_remote, RUN_SETUP },
-- 
2.7.0