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revisions API: extend the nascent REV_INFO_INIT macro 

Have the REV_INFO_INIT macro added in [1] declare more members of
"struct rev_info" that we can initialize statically, and have
repo_init_revisions() do so with the memcpy(..., &blank) idiom
introduced in [2].

As the comment for the "REV_INFO_INIT" macro notes this still isn't
sufficient to initialize a "struct rev_info" for use yet. But we are
getting closer to that eventual goal.

Even though we can't fully initialize a "struct rev_info" with
REV_INFO_INIT it's useful for readability to clearly separate those
things that we can statically initialize, and those that we can't.

This change could replace the:

	list_objects_filter_init(&revs->filter);

In the repo_init_revisions() with this line, at the end of the
REV_INFO_INIT deceleration in revisions.h:

	.filter = LIST_OBJECTS_FILTER_INIT, \

But doing so would produce a minor conflict with an outstanding
topic[3]. Let's skip that for now. I have follow-ups to initialize
more of this statically, e.g. changes to get rid of grep_init(). We
can initialize more members with the macro in a future series.

1. f196c1e908 (revisions API users: use release_revisions() needing
   REV_INFO_INIT, 2022-04-13)
2. 5726a6b401 (*.c *_init(): define in terms of corresponding *_INIT
   macro, 2021-07-01)
3. https://lore.kernel.org/git/265b292ed5c2de19b7118dfe046d3d9d932e2e89.1667901510.git.ps@pks.im/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2022-11-08 15:02:57 +01:00 committed by Taylor Blau
parent 3b08839926
commit 916ebb327c
2 changed files with 19 additions and 18 deletions
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19
revision.c
View File

@ -1865,30 +1865,15 @@ void repo_init_revisions(struct repository *r,
struct rev_info *revs,
const char *prefix)
{
memset(revs, 0, sizeof(*revs));
struct rev_info blank = REV_INFO_INIT;
memcpy(revs, &blank, sizeof(*revs));
revs->repo = r;
revs->abbrev = DEFAULT_ABBREV;
revs->simplify_history = 1;
revs->pruning.repo = r;
revs->pruning.flags.recursive = 1;
revs->pruning.flags.quick = 1;
revs->pruning.add_remove = file_add_remove;
revs->pruning.change = file_change;
revs->pruning.change_fn_data = revs;
revs->sort_order = REV_SORT_IN_GRAPH_ORDER;
revs->dense = 1;
revs->prefix = prefix;
revs->max_age = -1;
revs->max_age_as_filter = -1;
revs->min_age = -1;
revs->skip_count = -1;
revs->max_count = -1;
revs->max_parents = -1;
revs->expand_tabs_in_log = -1;
revs->commit_format = CMIT_FMT_DEFAULT;
revs->expand_tabs_in_log_default = 8;
grep_init(&revs->grep_filter, revs->repo);
revs->grep_filter.status_only = 1;

18
revision.h
View File

@ -357,7 +357,23 @@ struct rev_info {
* called before release_revisions() the "struct rev_info" can be left
* uninitialized.
*/
#define REV_INFO_INIT { 0 }
#define REV_INFO_INIT { \
.abbrev = DEFAULT_ABBREV, \
.simplify_history = 1, \
.pruning.flags.recursive = 1, \
.pruning.flags.quick = 1, \
.sort_order = REV_SORT_IN_GRAPH_ORDER, \
.dense = 1, \
.max_age = -1, \
.max_age_as_filter = -1, \
.min_age = -1, \
.skip_count = -1, \
.max_count = -1, \
.max_parents = -1, \
.expand_tabs_in_log = -1, \
.commit_format = CMIT_FMT_DEFAULT, \
.expand_tabs_in_log_default = 8, \
}
/**
* Initialize a rev_info structure with default values. The third parameter may