builtin rebase: support --onto

The `--onto` option is important, as it allows to rebase a range of
commits onto a different base commit (which gave the command its odd
name: "rebase").

This commit introduces options parsing so that different options can
be added in future commits.

Note: As this commit introduces to the parse_options() call (which
"eats" argv[0]), the argc is now expected to be lower by one after this
patch, compared to before this patch: argv[0] no longer refers to the
command name, but to the first (non-option) command-line parameter.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pratik Karki 2018-09-04 14:27:07 -07:00 committed by Junio C Hamano
parent ac7f467fef
commit f28d40d3a9

View file

@ -16,6 +16,16 @@
#include "cache-tree.h"
#include "unpack-trees.h"
#include "lockfile.h"
#include "parse-options.h"
static char const * const builtin_rebase_usage[] = {
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
"[<upstream>] [<branch>]"),
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
"--root [<branch>]"),
N_("git rebase --continue | --abort | --skip | --edit-todo"),
NULL
};
static GIT_PATH_FUNC(apply_dir, "rebase-apply")
static GIT_PATH_FUNC(merge_dir, "rebase-merge")
@ -301,6 +311,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
int ret, flags;
struct strbuf msg = STRBUF_INIT;
struct strbuf revisions = STRBUF_INIT;
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
N_("rebase onto given branch instead of upstream")),
OPT_END(),
};
/*
* NEEDSWORK: Once the builtin rebase has been tested enough
@ -318,13 +334,22 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
BUG("sane_execvp() returned???");
}
if (argc != 2)
die(_("Usage: %s <base>"), argv[0]);
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
prefix = setup_git_directory();
trace_repo_setup(prefix);
setup_work_tree();
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix,
builtin_rebase_options,
builtin_rebase_usage, 0);
if (argc > 2)
usage_with_options(builtin_rebase_usage,
builtin_rebase_options);
switch (options.type) {
case REBASE_MERGE:
@ -343,10 +368,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
if (!options.root) {
if (argc < 2)
if (argc < 1)
die("TODO: handle @{upstream}");
else {
options.upstream_name = argv[1];
options.upstream_name = argv[0];
argc--;
argv++;
if (!strcmp(options.upstream_name, "-"))
@ -377,7 +402,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
* orig_head -- commit object name of tip of the branch before rebasing
* head_name -- refs/heads/<that-branch> or "detached HEAD"
*/
if (argc > 1)
if (argc > 0)
die("TODO: handle switch_to");
else {
/* Do not need to switch branches, we are already on it. */