From: Phillip Wood <phillip.wood@xxxxxxxxxxxxx>
This function already takes a confusingly large number of parameters
some of which are optional or not always required. The following
commits will add a couple more parameters so change it to take a
struct of options first.
Signed-off-by: Phillip Wood <phillip.wood@xxxxxxxxxxxxx>
---
builtin/rebase.c | 57 ++++++++++++++++++++++++++++++------------------
reset.c | 36 +++++++++++++++---------------
reset.h | 29 ++++++++++++++++++++----
sequencer.c | 5 ++---
4 files changed, 80 insertions(+), 47 deletions(-)
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 89b348ffa75..ae5de271e9a 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -777,6 +777,7 @@ static void add_var(struct strbuf *buf, const char *name, const char *value)
static int move_to_original_branch(struct rebase_options *opts)
{
struct strbuf orig_head_reflog = STRBUF_INIT, head_reflog = STRBUF_INIT;
+ struct reset_head_opts ropts = { 0 };
int ret;
if (!opts->head_name)
@@ -789,9 +790,11 @@ static int move_to_original_branch(struct rebase_options *opts)
opts->head_name, oid_to_hex(&opts->onto->object.oid));
strbuf_addf(&head_reflog, "rebase finished: returning to %s",
opts->head_name);
- ret = reset_head(the_repository, NULL, opts->head_name,
- RESET_HEAD_REFS_ONLY,
- orig_head_reflog.buf, head_reflog.buf, NULL);
+ ropts.branch = opts->head_name;
+ ropts.flags = RESET_HEAD_REFS_ONLY;
+ ropts.orig_head_msg = orig_head_reflog.buf;
+ ropts.head_msg = head_reflog.buf;
+ ret = reset_head(the_repository, &ropts);
strbuf_release(&orig_head_reflog);
strbuf_release(&head_reflog);
@@ -875,13 +878,15 @@ static int run_am(struct rebase_options *opts)
status = run_command(&format_patch);
if (status) {
+ struct reset_head_opts ropts = { 0 };
unlink(rebased_patches);
free(rebased_patches);
strvec_clear(&am.args);
- reset_head(the_repository, &opts->orig_head,
- opts->head_name, 0,
- NULL, NULL, DEFAULT_REFLOG_ACTION);
+ ropts.oid = &opts->orig_head;
+ ropts.branch = opts->head_name;
+ ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
+ reset_head(the_repository, &ropts);
error(_("\ngit encountered an error while preparing the "
"patches to replay\n"
"these revisions:\n"
@@ -1101,14 +1106,17 @@ static int rebase_config(const char *var, const char *value, void *data)
static int checkout_up_to_date(struct rebase_options *options)
{
struct strbuf buf = STRBUF_INIT;
+ struct reset_head_opts ropts = { 0 };
int ret = 0;
strbuf_addf(&buf, "%s: checkout %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
options->switch_to);
- if (reset_head(the_repository, &options->orig_head,
- options->head_name, RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
- NULL, buf.buf, NULL) < 0)
+ ropts.oid = &options->orig_head;
+ ropts.branch = options->head_name;
+ ropts.flags = RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
+ ropts.head_msg = buf.buf;
+ if (reset_head(the_repository, &ropts) < 0)
ret = error(_("could not switch to %s"), options->switch_to);
strbuf_release(&buf);
@@ -1319,6 +1327,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
char *squash_onto_name = NULL;
int reschedule_failed_exec = -1;
int allow_preemptive_ff = 1;
+ struct reset_head_opts ropts = { 0 };
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
@@ -1555,9 +1564,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
rerere_clear(the_repository, &merge_rr);
string_list_clear(&merge_rr, 1);
-
- if (reset_head(the_repository, NULL, NULL, RESET_HEAD_HARD,
- NULL, NULL, NULL) < 0)
+ ropts.flags = RESET_HEAD_HARD;
+ if (reset_head(the_repository, &ropts) < 0)
die(_("could not discard worktree changes"));
remove_branch_state(the_repository, 0);
if (read_basic_state(&options))
@@ -1574,9 +1582,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (read_basic_state(&options))
exit(1);
- if (reset_head(the_repository, &options.orig_head,
- options.head_name, RESET_HEAD_HARD,
- NULL, NULL, DEFAULT_REFLOG_ACTION) < 0)
+ ropts.oid = &options.orig_head;
+ ropts.branch = options.head_name;
+ ropts.flags = RESET_HEAD_HARD;
+ ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
+ if (reset_head(the_repository, &ropts) < 0)
die(_("could not move back to %s"),
oid_to_hex(&options.orig_head));
remove_branch_state(the_repository, 0);
@@ -2063,10 +2073,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
strbuf_addf(&msg, "%s: checkout %s",
getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
- if (reset_head(the_repository, &options.onto->object.oid, NULL,
- RESET_HEAD_DETACH | RESET_ORIG_HEAD |
- RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
- NULL, msg.buf, DEFAULT_REFLOG_ACTION))
+ ropts.oid = &options.onto->object.oid;
+ ropts.flags = RESET_HEAD_DETACH | RESET_ORIG_HEAD |
+ RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
+ ropts.head_msg = msg.buf;
+ ropts.default_reflog_action = DEFAULT_REFLOG_ACTION;
+ if (reset_head(the_repository, &ropts))
die(_("Could not detach HEAD"));
strbuf_release(&msg);
@@ -2081,8 +2093,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
strbuf_addf(&msg, "rebase finished: %s onto %s",
options.head_name ? options.head_name : "detached HEAD",
oid_to_hex(&options.onto->object.oid));
- reset_head(the_repository, NULL, options.head_name,
- RESET_HEAD_REFS_ONLY, NULL, msg.buf, NULL);
+ memset(&ropts, 0, sizeof(ropts));
+ ropts.branch = options.head_name;
+ ropts.flags = RESET_HEAD_REFS_ONLY;
+ ropts.head_msg = msg.buf;
+ reset_head(the_repository, &ropts);
strbuf_release(&msg);
ret = finish_rebase(&options);
goto cleanup;
diff --git a/reset.c b/reset.c
index be4e18eed98..e77a8ac423d 100644
--- a/reset.c
+++ b/reset.c
@@ -8,13 +8,16 @@
#include "tree.h"
#include "unpack-trees.h"
-static int update_refs(const struct object_id *oid, const char *switch_to_branch,
- const char *reflog_head, const char *reflog_orig_head,
- const char *default_reflog_action, unsigned flags)
+static int update_refs(const struct reset_head_opts *opts,
+ const struct object_id *oid)
{
- unsigned detach_head = flags & RESET_HEAD_DETACH;
- unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
- unsigned update_orig_head = flags & RESET_ORIG_HEAD;
+ unsigned detach_head = opts->flags & RESET_HEAD_DETACH;
+ unsigned run_hook = opts->flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
+ unsigned update_orig_head = opts->flags & RESET_ORIG_HEAD;
+ const char *switch_to_branch = opts->branch;
+ const char *reflog_head = opts->head_msg;
+ const char *reflog_orig_head = opts->orig_head_msg;
+ const char *default_reflog_action = opts->default_reflog_action;
struct object_id *orig = NULL, oid_orig, *old_orig = NULL, oid_old_orig;
struct strbuf msg = STRBUF_INIT;
const char *reflog_action;
@@ -69,14 +72,13 @@ static int update_refs(const struct object_id *oid, const char *switch_to_branch
return ret;
}
-int reset_head(struct repository *r, struct object_id *oid,
- const char *switch_to_branch, unsigned flags,
- const char *reflog_orig_head, const char *reflog_head,
- const char *default_reflog_action)
+int reset_head(struct repository *r, const struct reset_head_opts *opts)
{
- unsigned reset_hard = flags & RESET_HEAD_HARD;
- unsigned refs_only = flags & RESET_HEAD_REFS_ONLY;
- unsigned update_orig_head = flags & RESET_ORIG_HEAD;
+ const struct object_id *oid = opts->oid;
+ const char *switch_to_branch = opts->branch;
+ unsigned reset_hard = opts->flags & RESET_HEAD_HARD;
+ unsigned refs_only = opts->flags & RESET_HEAD_REFS_ONLY;
+ unsigned update_orig_head = opts->flags & RESET_ORIG_HEAD;
struct object_id head_oid;
struct tree_desc desc[2] = { { NULL }, { NULL } };
struct lock_file lock = LOCK_INIT;
@@ -102,9 +104,7 @@ int reset_head(struct repository *r, struct object_id *oid,
oid = &head_oid;
if (refs_only)
- return update_refs(oid, switch_to_branch, reflog_head,
- reflog_orig_head, default_reflog_action,
- flags);
+ return update_refs(opts, oid);
action = reset_hard ? "reset" : "checkout";
setup_unpack_trees_porcelain(&unpack_tree_opts, action);
@@ -148,9 +148,7 @@ int reset_head(struct repository *r, struct object_id *oid,
}
if (oid != &head_oid || update_orig_head || switch_to_branch)
- ret = update_refs(oid, switch_to_branch, reflog_head,
- reflog_orig_head, default_reflog_action,
- flags);
+ ret = update_refs(opts, oid);
leave_reset_head:
rollback_lock_file(&lock);
diff --git a/reset.h b/reset.h
index 2daec804259..996d7f569b6 100644
--- a/reset.h
+++ b/reset.h
@@ -12,9 +12,30 @@
#define RESET_HEAD_REFS_ONLY (1<<3)
#define RESET_ORIG_HEAD (1<<4)
-int reset_head(struct repository *r, struct object_id *oid,
- const char *switch_to_branch, unsigned flags,
- const char *reflog_orig_head, const char *reflog_head,
- const char *default_reflog_action);
+struct reset_head_opts {
+ /* The oid of the commit to checkout/reset to. Defaults to HEAD */
+ const struct object_id *oid;
+ /* Optional branch to switch to */
+ const char *branch;
+ /* Flags defined above */
+ unsigned flags;
+ /*
+ * Optional reflog message for HEAD, if this is not set then
+ * default_reflog_action must be.
+ */
+ const char *head_msg;
+ /*
+ * Optional reflog message for ORIG_HEAD, if this is not set and flags
+ * contains RESET_ORIG_HEAD then default_reflog_action must be set.
+ */
+ const char *orig_head_msg;
+ /*
+ * Action to use in default reflog messages, only required if a ref is
+ * being updated and the reflog messages above are omitted.
+ */
+ const char *default_reflog_action;
+};
+
+int reset_head(struct repository *r, const struct reset_head_opts *opts);
#endif
diff --git a/sequencer.c b/sequencer.c
index 56a204f18c5..36ab6854c6b 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -4109,6 +4109,7 @@ void create_autostash(struct repository *r, const char *path)
if (has_unstaged_changes(r, 1) ||
has_uncommitted_changes(r, 1)) {
struct child_process stash = CHILD_PROCESS_INIT;
+ struct reset_head_opts ropts = { .flags = RESET_HEAD_HARD };
struct object_id oid;
strvec_pushl(&stash.args,
@@ -4130,10 +4131,8 @@ void create_autostash(struct repository *r, const char *path)
path);
write_file(path, "%s", oid_to_hex(&oid));
printf(_("Created autostash: %s\n"), buf.buf);
- if (reset_head(r, NULL, NULL, RESET_HEAD_HARD, NULL, NULL,
- NULL) < 0)
+ if (reset_head(r, &ropts) < 0)
die(_("could not reset --hard"));
-
if (discard_index(r->index) < 0 ||
repo_read_index(r) < 0)
die(_("could not read index"));
--
gitgitgadget
