Heiko Voigt <hvoigt@xxxxxxxxxx> writes:
> Signed-off-by: Heiko Voigt <hvoigt@xxxxxxxxxx>
This needs a bit more explanation. "Exten_d_ setup_revisions()" is fine,
but "works with submodules"??? How? and what do the caller need to do?
Something like...
Subject: setup_revisions(): allow walking history in a submodule
By passing the path to a submodule in opt->submodule, the function can
be used to walk history in the named submodule repository, instead of
the toplevel repository.
> ---
> refs.c | 31 +++++++++++++++++++++++++++++++
> refs.h | 8 ++++++++
> revision.c | 32 ++++++++++++++++++--------------
> revision.h | 1 +
> 4 files changed, 58 insertions(+), 14 deletions(-)
>
> diff --git a/refs.c b/refs.c
> index c8649b1..37e2794 100644
> --- a/refs.c
> +++ b/refs.c
> @@ -721,31 +721,62 @@ int head_ref(each_ref_fn fn, void *cb_data)
> return do_head_ref(NULL, fn, cb_data);
> }
>
> +int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
> +{
> + return do_head_ref(submodule, fn, cb_data);
> +}
> +
> int for_each_ref(each_ref_fn fn, void *cb_data)
> {
> return do_for_each_ref(NULL, "refs/", fn, 0, 0, cb_data);
> }
>
> +int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
> +{
> + return do_for_each_ref(submodule, "refs/", fn, 0, 0, cb_data);
> +}
> +
> int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
> {
> return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data);
> }
>
> +int for_each_ref_in_submodule(const char *submodule, const char *prefix,
> + each_ref_fn fn, void *cb_data)
> +{
> + return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data);
> +}
> +
> int for_each_tag_ref(each_ref_fn fn, void *cb_data)
> {
> return for_each_ref_in("refs/tags/", fn, cb_data);
> }
>
> +int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
> +{
> + return for_each_ref_in_submodule(submodule, "refs/tags/", fn, cb_data);
> +}
> +
> int for_each_branch_ref(each_ref_fn fn, void *cb_data)
> {
> return for_each_ref_in("refs/heads/", fn, cb_data);
> }
>
> +int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
> +{
> + return for_each_ref_in_submodule(submodule, "refs/heads/", fn, cb_data);
> +}
> +
> int for_each_remote_ref(each_ref_fn fn, void *cb_data)
> {
> return for_each_ref_in("refs/remotes/", fn, cb_data);
> }
>
> +int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
> +{
> + return for_each_ref_in_submodule(submodule, "refs/remotes/", fn, cb_data);
> +}
> +
> int for_each_replace_ref(each_ref_fn fn, void *cb_data)
> {
> return do_for_each_ref(NULL, "refs/replace/", fn, 13, 0, cb_data);
> diff --git a/refs.h b/refs.h
> index 762ce50..5e7a9a5 100644
> --- a/refs.h
> +++ b/refs.h
> @@ -28,6 +28,14 @@ extern int for_each_replace_ref(each_ref_fn, void *);
> extern int for_each_glob_ref(each_ref_fn, const char *pattern, void *);
> extern int for_each_glob_ref_in(each_ref_fn, const char *pattern, const char* prefix, void *);
>
> +extern int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
> +extern int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
> +extern int for_each_ref_in_submodule(const char *submodule, const char *prefix,
> + each_ref_fn fn, void *cb_data);
> +extern int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
> +extern int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
> +extern int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
> +
> static inline const char *has_glob_specials(const char *pattern)
> {
> return strpbrk(pattern, "?*[");
> diff --git a/revision.c b/revision.c
> index 7e82efd..5f2cf1e 100644
> --- a/revision.c
> +++ b/revision.c
> @@ -820,12 +820,12 @@ static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs,
> cb->all_flags = flags;
> }
>
> -static void handle_refs(struct rev_info *revs, unsigned flags,
> - int (*for_each)(each_ref_fn, void *))
> +static void handle_refs(const char *submodule, struct rev_info *revs, unsigned flags,
> + int (*for_each)(const char *, each_ref_fn, void *))
> {
> struct all_refs_cb cb;
> init_all_refs_cb(&cb, revs, flags);
> - for_each(handle_one_ref, &cb);
> + for_each(submodule, handle_one_ref, &cb);
> }
>
> static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data)
> @@ -1417,14 +1417,14 @@ void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
> ctx->argc -= n;
> }
>
> -static int for_each_bad_bisect_ref(each_ref_fn fn, void *cb_data)
> +static int for_each_bad_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
> {
> - return for_each_ref_in("refs/bisect/bad", fn, cb_data);
> + return for_each_ref_in_submodule(submodule, "refs/bisect/bad", fn, cb_data);
> }
>
> -static int for_each_good_bisect_ref(each_ref_fn fn, void *cb_data)
> +static int for_each_good_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
> {
> - return for_each_ref_in("refs/bisect/good", fn, cb_data);
> + return for_each_ref_in_submodule(submodule, "refs/bisect/good", fn, cb_data);
> }
>
> static void append_prune_data(const char ***prune_data, const char **av)
> @@ -1466,6 +1466,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
> {
> int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0;
> const char **prune_data = NULL;
> + const char *submodule = NULL;
> +
> + if (opt)
> + submodule = opt->submodule;
>
> /* First, search for "--" */
> seen_dashdash = 0;
> @@ -1490,26 +1494,26 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
> int opts;
>
> if (!strcmp(arg, "--all")) {
> - handle_refs(revs, flags, for_each_ref);
> - handle_refs(revs, flags, head_ref);
> + handle_refs(submodule, revs, flags, for_each_ref_submodule);
> + handle_refs(submodule, revs, flags, head_ref_submodule);
> continue;
> }
> if (!strcmp(arg, "--branches")) {
> - handle_refs(revs, flags, for_each_branch_ref);
> + handle_refs(submodule, revs, flags, for_each_branch_ref_submodule);
> continue;
> }
> if (!strcmp(arg, "--bisect")) {
> - handle_refs(revs, flags, for_each_bad_bisect_ref);
> - handle_refs(revs, flags ^ UNINTERESTING, for_each_good_bisect_ref);
> + handle_refs(submodule, revs, flags, for_each_bad_bisect_ref);
> + handle_refs(submodule, revs, flags ^ UNINTERESTING, for_each_good_bisect_ref);
> revs->bisect = 1;
> continue;
> }
> if (!strcmp(arg, "--tags")) {
> - handle_refs(revs, flags, for_each_tag_ref);
> + handle_refs(submodule, revs, flags, for_each_tag_ref_submodule);
> continue;
> }
> if (!strcmp(arg, "--remotes")) {
> - handle_refs(revs, flags, for_each_remote_ref);
> + handle_refs(submodule, revs, flags, for_each_remote_ref_submodule);
> continue;
> }
> if (!prefixcmp(arg, "--glob=")) {
> diff --git a/revision.h b/revision.h
> index 36fdf22..05659c6 100644
> --- a/revision.h
> +++ b/revision.h
> @@ -151,6 +151,7 @@ extern volatile show_early_output_fn_t show_early_output;
> struct setup_revision_opt {
> const char *def;
> void (*tweak)(struct rev_info *, struct setup_revision_opt *);
> + const char *submodule;
> };
>
> extern void init_revisions(struct rev_info *revs, const char *prefix);
> --
> 1.7.2.rc1.217.g7dc0db.dirty
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