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 | 5 ++++-
builtin/branch.c | 2 +-
builtin/checkout.c | 3 ++-
4 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/branch.c b/branch.c
index df24021f27..02d46a69b8 100644
--- a/branch.c
+++ b/branch.c
@@ -423,7 +423,7 @@ 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 quiet, enum branch_track track, int dry_run)
{
struct object_id oid;
char *real_ref;
@@ -445,6 +445,8 @@ void create_branch(struct repository *r,
}
dwim_branch_start(r, start_name, track, &real_ref, &oid);
+ if (dry_run)
+ goto cleanup;
if (reflog)
log_all_ref_updates = LOG_REFS_NORMAL;
@@ -467,6 +469,7 @@ void create_branch(struct repository *r,
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..509cfcc34e 100644
--- a/branch.h
+++ b/branch.h
@@ -62,11 +62,14 @@ 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);
+ 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 62b1a70b05..c6fffb99ab 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -858,7 +858,7 @@ 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 1809ac12df..8600860629 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -893,7 +893,8 @@ 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);
new_branch_info->name = opts->new_branch;
setup_branch_path(new_branch_info);
}
--
2.33.GIT
