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branch: support more tracking modes when recursing

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"git branch --recurse-submodules" does not propagate "--track=inherit"
or "--no-track" to submodules, which causes submodule branches to use
the wrong tracking mode [1]. To fix this, pass the correct options to
the "submodule--helper create-branch" child process and test for it.

While we are refactoring the same code, replace "--track" with the
synonymous, but more consistent-looking "--track=direct" option
(introduced at the same time as "--track=inherit", d3115660b4 (branch:
add flags and config to inherit tracking, 2021-12-20)).

[1] This bug is partially a timing issue: "branch --recurse-submodules"
 was introduced around the same time as "--track=inherit", and even
 though I rebased "branch --recurse-submodules" on top of that, I had
 neglected to support the new tracking mode. Omitting "--no-track"
 was just a plain old mistake, though.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Glen Choo
2022-03-29 20:01:16 +00:00
committed by Junio C Hamano
parent 679e3693ab
commit 75388bf5b4
3 changed files with 67 additions and 7 deletions
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29
branch.c
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@ -233,6 +233,9 @@ static void setup_tracking(const char *new_ref, const char *orig_ref,
struct string_list tracking_srcs = STRING_LIST_INIT_DUP;
int config_flags = quiet ? 0 : BRANCH_CONFIG_VERBOSE;
if (!track)
BUG("asked to set up tracking, but tracking is disallowed");
memset(&tracking, 0, sizeof(tracking));
tracking.spec.dst = (char *)orig_ref;
tracking.srcs = &tracking_srcs;
@ -529,8 +532,27 @@ static int submodule_create_branch(struct repository *r,
strvec_push(&child.args, "--quiet");
if (reflog)
strvec_push(&child.args, "--create-reflog");
if (track == BRANCH_TRACK_ALWAYS || track == BRANCH_TRACK_EXPLICIT)
strvec_push(&child.args, "--track");
switch (track) {
case BRANCH_TRACK_NEVER:
strvec_push(&child.args, "--no-track");
break;
case BRANCH_TRACK_ALWAYS:
case BRANCH_TRACK_EXPLICIT:
strvec_push(&child.args, "--track=direct");
break;
case BRANCH_TRACK_OVERRIDE:
BUG("BRANCH_TRACK_OVERRIDE cannot be used when creating a branch.");
break;
case BRANCH_TRACK_INHERIT:
strvec_push(&child.args, "--track=inherit");
break;
case BRANCH_TRACK_UNSPECIFIED:
/* Default for "git checkout". No need to pass --track. */
case BRANCH_TRACK_REMOTE:
/* Default for "git branch". No need to pass --track. */
break;
}
strvec_pushl(&child.args, name, start_oid, tracking_name, NULL);
@ -609,7 +631,8 @@ void create_branches_recursively(struct repository *r, const char *name,
* tedious to determine whether or not tracking was set up in the
* superproject.
*/
setup_tracking(name, tracking_name, track, quiet);
if (track)
setup_tracking(name, tracking_name, track, quiet);
for (i = 0; i < submodule_entry_list.entry_nr; i++) {
if (submodule_create_branch(