Add a dry_run parameter to create_branch() such that dry_run = 1 will
validate a new branch without trying to create it. This will be used in
`git branch --recurse-submodules` to ensure that the new branch can be
created in all submodules.
Signed-off-by: Glen Choo <chooglen@xxxxxxxxxx>
---
branch.c | 5 ++++-
branch.h | 9 +++++----
builtin/branch.c | 2 +-
builtin/checkout.c | 3 ++-
4 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/branch.c b/branch.c
index 6f474a5505..047d9958fc 100644
--- a/branch.c
+++ b/branch.c
@@ -420,7 +420,7 @@ static void dwim_branch_start(struct repository *r, const char *start_name,
void create_branch(struct repository *r, const char *name,
const char *start_name, int force, int clobber_head_ok,
- int reflog, int quiet, enum branch_track track)
+ int reflog, int quiet, enum branch_track track, int dry_run)
{
struct object_id oid;
char *real_ref;
@@ -440,6 +440,8 @@ void create_branch(struct repository *r, const char *name,
}
dwim_branch_start(r, start_name, track, &real_ref, &oid);
+ if (dry_run)
+ goto cleanup;
if (reflog)
log_all_ref_updates = LOG_REFS_NORMAL;
@@ -462,6 +464,7 @@ void create_branch(struct repository *r, const char *name,
if (real_ref && track)
setup_tracking(ref.buf + 11, real_ref, track, quiet);
+cleanup:
strbuf_release(&ref);
free(real_ref);
}
diff --git a/branch.h b/branch.h
index cf3a4d3ff3..8009266343 100644
--- a/branch.h
+++ b/branch.h
@@ -62,11 +62,12 @@ void dwim_and_setup_tracking(struct repository *r, const char *new_ref,
* - track causes the new branch to be configured to merge the remote branch
* that start_name is a tracking branch for (if any).
*
+ * - dry_run causes the branch to be validated but not created.
+ *
*/
-void create_branch(struct repository *r,
- const char *name, const char *start_name,
- int force, int clobber_head_ok,
- int reflog, int quiet, enum branch_track track);
+void create_branch(struct repository *r, const char *name,
+ const char *start_name, int force, int clobber_head_ok,
+ int reflog, int quiet, enum branch_track track, int dry_run);
/*
* Check if 'name' can be a valid name for a branch; die otherwise.
diff --git a/builtin/branch.c b/builtin/branch.c
index 4a9e0f5727..d785ebdba0 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -864,7 +864,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
create_branch(the_repository,
argv[0], (argc == 2) ? argv[1] : head,
- force, 0, reflog, quiet, track);
+ force, 0, reflog, quiet, track, 0);
} else
usage_with_options(builtin_branch_usage, options);
diff --git a/builtin/checkout.c b/builtin/checkout.c
index a1ba3e2b56..da183724d3 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -905,7 +905,8 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
opts->new_branch_force ? 1 : 0,
opts->new_branch_log,
opts->quiet,
- opts->track);
+ opts->track,
+ 0);
free(new_branch_info->name);
free(new_branch_info->refname);
new_branch_info->name = xstrdup(opts->new_branch);
--
2.33.GIT
