Continue the work started in the preceding commit of porting
pack-objects.c over to the new handle_stdin_line callback pattern. The
common case for the users of this API is to do some of their own
parsing or munging, and then have handle_revision_arg() handle the
rest.
The existing users of the --stdin parsing always wanted a flag of "0"
to be passed to handle_revision_arg(), but pack-objects.c wants to set
custom flags. Let's support this common case by having a
"revarg_flags" member in the "rev_info" struct.
This allows us to return REV_INFO_STDIN_LINE_PROCESS in the new
get_object_list_handle_stdin_line() instead of
REV_INFO_STDIN_LINE_CONTINUE, as read_revisions_from_stdin() will now
pass down the right flag for us.
I considered making the "--not" parsing be another flag handled by the
revision.c API itself, but since there's only one caller who wants
this, and the "write_bitmap_index = 0" case is more specific than
marking things UNINTERESTING I think it's better to handle it with a
more general mechanism.
These changes means that we can make the handle_revision_arg()
function static. Now that the only external user of the API has been
migrated over to the callback mechanism nothing external to revision.c
needs to call handle_revision_arg() anymore.
That handle_revision_arg() function was made public in a combination
of 5d6f0935e6d (revision.c: allow injecting revision parameters after
setup_revisions()., 2006-09-05) and b5d97e6b0a0 (pack-objects: run
rev-list equivalent internally., 2006-09-04).
This change leaves the briefly-used in preceding commits
"void *stdin_line_priv" without any in-tree user, as
builtin/pack-objects.c could be ported over to our new "revarg_flags"
common case.
I'm leaving that "void *stdin_line_priv" in place anyway for two
reasons:
1. It's a common pattern to allow such a "void *" to be used for
callback data, so we might as well follow that pattern here in
anticipation of a future in-tree user.
2. I have patches for such an in-tree user already in a series
that'll be submitted after this one.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/pack-objects.c | 35 +++++++++++++++--------------------
revision.c | 4 ++--
revision.h | 6 ++++--
3 files changed, 21 insertions(+), 24 deletions(-)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index f8cae6c305a..50f703e1795 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -3758,28 +3758,25 @@ static void mark_bitmap_preferred_tips(void)
static enum rev_info_stdin_line get_object_list_handle_stdin_line(
struct rev_info *revs, struct strbuf *line_sb, void *stdin_line_priv)
{
- int *flags = stdin_line_priv;
char *line = line_sb->buf;
- if (*line == '-') {
- if (!strcmp(line, "--not")) {
- *flags ^= UNINTERESTING;
- write_bitmap_index = 0;
- return REV_INFO_STDIN_LINE_CONTINUE;
- }
- if (starts_with(line, "--shallow ")) {
- struct object_id oid;
- if (get_oid_hex(line + 10, &oid))
- die("not an object name '%s'", line + 10);
- register_shallow(the_repository, &oid);
- use_bitmap_index = 0;
- return REV_INFO_STDIN_LINE_CONTINUE;
- }
+ if (*line != '-')
+ return REV_INFO_STDIN_LINE_PROCESS;
+
+ if (!strcmp(line, "--not")) {
+ revs->revarg_flags ^= UNINTERESTING;
+ write_bitmap_index = 0;
+ return REV_INFO_STDIN_LINE_CONTINUE;
+ } else if (starts_with(line, "--shallow ")) {
+ struct object_id oid;
+ if (get_oid_hex(line + 10, &oid))
+ die("not an object name '%s'", line + 10);
+ register_shallow(the_repository, &oid);
+ use_bitmap_index = 0;
+ return REV_INFO_STDIN_LINE_CONTINUE;
+ } else {
die(_("not a rev '%s'"), line);
}
- if (handle_revision_arg(line, revs, *flags, REVARG_CANNOT_BE_FILENAME))
- die(_("bad revision '%s'"), line);
- return REV_INFO_STDIN_LINE_CONTINUE;
}
static void get_object_list(int ac, const char **av)
@@ -3788,7 +3785,6 @@ static void get_object_list(int ac, const char **av)
struct setup_revision_opt s_r_opt = {
.allow_exclude_promisor_objects = 1,
};
- int flags = 0;
repo_init_revisions(the_repository, &revs, NULL);
save_commit_buffer = 0;
@@ -3798,7 +3794,6 @@ static void get_object_list(int ac, const char **av)
revs.stdin_handling = REV_INFO_STDIN_ALWAYS_READ;
revs.handle_stdin_line = get_object_list_handle_stdin_line;
- revs.stdin_line_priv = &flags;
setup_revisions(ac, av, &revs, &s_r_opt);
if (use_bitmap_index && !get_object_list_from_bitmap(&revs))
diff --git a/revision.c b/revision.c
index f55b3a1caf4..17121f40c0b 100644
--- a/revision.c
+++ b/revision.c
@@ -2089,7 +2089,7 @@ static int handle_revision_arg_1(const char *arg_, struct rev_info *revs, int fl
return 0;
}
-int handle_revision_arg(const char *arg, struct rev_info *revs, int flags, unsigned revarg_opt)
+static int handle_revision_arg(const char *arg, struct rev_info *revs, int flags, unsigned revarg_opt)
{
int ret = handle_revision_arg_1(arg, revs, flags, revarg_opt);
if (!ret)
@@ -2139,7 +2139,7 @@ static void read_revisions_from_stdin(struct rev_info *revs,
}
die("options not supported in --stdin mode");
}
- if (handle_revision_arg(sb.buf, revs, 0,
+ if (handle_revision_arg(sb.buf, revs, revs->revarg_flags,
REVARG_CANNOT_BE_FILENAME))
die("bad revision '%s'", sb.buf);
}
diff --git a/revision.h b/revision.h
index ff7994bb13d..2b96c05ced8 100644
--- a/revision.h
+++ b/revision.h
@@ -156,6 +156,9 @@ struct rev_info {
* revision.c's normal processing of the line (after
* possibly munging the provided strbuf).
*
+ * Change "revarg_flags" to affect the subsequent handling
+ * in handle_revision_arg()
+ *
* - Return REV_INFO_STDIN_LINE_CONTINUE to indicate that the
* line is fully processed, moving onto the next line (if
* any)
@@ -164,6 +167,7 @@ struct rev_info {
* around.
*/
rev_info_stdin_line_func handle_stdin_line;
+ int revarg_flags;
void *stdin_line_priv;
/* topo-sort */
@@ -421,8 +425,6 @@ void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
const char * const usagestr[]);
#define REVARG_CANNOT_BE_FILENAME 01
#define REVARG_COMMITTISH 02
-int handle_revision_arg(const char *arg, struct rev_info *revs,
- int flags, unsigned revarg_opt);
/**
* Reset the flags used by the revision walking api. You can use this to do
--
2.32.0.599.g3967b4fa4ac
