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diff: make diff_populate_filespec_options struct 

The behavior of diff_populate_filespec() currently can be customized
through a bitflag, but a subsequent patch requires it to support a
non-boolean option. Replace the bitflag with an options struct.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2020-04-07 15:11:41 -07:00 committed by Junio C Hamano
parent db7ed7418b
commit 1c37e86ab2
5 changed files with 54 additions and 32 deletions
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54
diff.c
View File

@ -573,7 +573,7 @@ static int fill_mmfile(struct repository *r, mmfile_t *mf,
mf->size = 0;
return 0;
}
else if (diff_populate_filespec(r, one, 0))
else if (diff_populate_filespec(r, one, NULL))
return -1;
mf->ptr = one->data;
@ -585,9 +585,13 @@ static int fill_mmfile(struct repository *r, mmfile_t *mf,
static unsigned long diff_filespec_size(struct repository *r,
struct diff_filespec *one)
{
struct diff_populate_filespec_options dpf_options = {
.check_size_only = 1,
};
if (!DIFF_FILE_VALID(one))
return 0;
diff_populate_filespec(r, one, CHECK_SIZE_ONLY);
diff_populate_filespec(r, one, &dpf_options);
return one->size;
}
@ -3020,6 +3024,9 @@ static void show_dirstat(struct diff_options *options)
struct diff_filepair *p = q->queue[i];
const char *name;
unsigned long copied, added, damage;
struct diff_populate_filespec_options dpf_options = {
.check_size_only = 1,
};
name = p->two->path ? p->two->path : p->one->path;
@ -3047,19 +3054,19 @@ static void show_dirstat(struct diff_options *options)
}
if (DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
diff_populate_filespec(options->repo, p->one, 0);
diff_populate_filespec(options->repo, p->two, 0);
diff_populate_filespec(options->repo, p->one, NULL);
diff_populate_filespec(options->repo, p->two, NULL);
diffcore_count_changes(options->repo,
p->one, p->two, NULL, NULL,
&copied, &added);
diff_free_filespec_data(p->one);
diff_free_filespec_data(p->two);
} else if (DIFF_FILE_VALID(p->one)) {
diff_populate_filespec(options->repo, p->one, CHECK_SIZE_ONLY);
diff_populate_filespec(options->repo, p->one, &dpf_options);
copied = added = 0;
diff_free_filespec_data(p->one);
} else if (DIFF_FILE_VALID(p->two)) {
diff_populate_filespec(options->repo, p->two, CHECK_SIZE_ONLY);
diff_populate_filespec(options->repo, p->two, &dpf_options);
copied = 0;
added = p->two->size;
diff_free_filespec_data(p->two);
@ -3339,13 +3346,17 @@ static void emit_binary_diff(struct diff_options *o,
int diff_filespec_is_binary(struct repository *r,
struct diff_filespec *one)
{
struct diff_populate_filespec_options dpf_options = {
.check_binary = 1,
};
if (one->is_binary == -1) {
diff_filespec_load_driver(one, r->index);
if (one->driver->binary != -1)
one->is_binary = one->driver->binary;
else {
if (!one->data && DIFF_FILE_VALID(one))
diff_populate_filespec(r, one, CHECK_BINARY);
diff_populate_filespec(r, one, &dpf_options);
if (one->is_binary == -1 && one->data)
one->is_binary = buffer_is_binary(one->data,
one->size);
@ -3677,8 +3688,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
}
else if (complete_rewrite) {
diff_populate_filespec(o->repo, one, 0);
diff_populate_filespec(o->repo, two, 0);
diff_populate_filespec(o->repo, one, NULL);
diff_populate_filespec(o->repo, two, NULL);
data->deleted = count_lines(one->data, one->size);
data->added = count_lines(two->data, two->size);
}
@ -3914,9 +3925,10 @@ static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
*/
int diff_populate_filespec(struct repository *r,
struct diff_filespec *s,
unsigned int flags)
const struct diff_populate_filespec_options *options)
{
int size_only = flags & CHECK_SIZE_ONLY;
int size_only = options ? options->check_size_only : 0;
int check_binary = options ? options->check_binary : 0;
int err = 0;
int conv_flags = global_conv_flags_eol;
/*
@ -3986,7 +3998,7 @@ int diff_populate_filespec(struct repository *r,
* opening the file and inspecting the contents, this
* is probably fine.
*/
if ((flags & CHECK_BINARY) &&
if (check_binary &&
s->size > big_file_threshold && s->is_binary == -1) {
s->is_binary = 1;
return 0;
@ -4012,7 +4024,7 @@ int diff_populate_filespec(struct repository *r,
}
else {
enum object_type type;
if (size_only || (flags & CHECK_BINARY)) {
if (size_only || check_binary) {
type = oid_object_info(r, &s->oid, &s->size);
if (type < 0)
die("unable to read %s",
@ -4141,7 +4153,7 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
return temp;
}
else {
if (diff_populate_filespec(r, one, 0))
if (diff_populate_filespec(r, one, NULL))
die("cannot read data blob for %s", one->path);
prep_temp_blob(r->index, name, temp,
one->data, one->size,
@ -6407,9 +6419,9 @@ static int diff_filespec_is_identical(struct repository *r,
{
if (S_ISGITLINK(one->mode))
return 0;
if (diff_populate_filespec(r, one, 0))
if (diff_populate_filespec(r, one, NULL))
return 0;
if (diff_populate_filespec(r, two, 0))
if (diff_populate_filespec(r, two, NULL))
return 0;
return !memcmp(one->data, two->data, one->size);
}
@ -6417,6 +6429,10 @@ static int diff_filespec_is_identical(struct repository *r,
static int diff_filespec_check_stat_unmatch(struct repository *r,
struct diff_filepair *p)
{
struct diff_populate_filespec_options dpf_options = {
.check_size_only = 1,
};
if (p->done_skip_stat_unmatch)
return p->skip_stat_unmatch_result;
@ -6439,8 +6455,8 @@ static int diff_filespec_check_stat_unmatch(struct repository *r,
!DIFF_FILE_VALID(p->two) ||
(p->one->oid_valid && p->two->oid_valid) ||
(p->one->mode != p->two->mode) ||
diff_populate_filespec(r, p->one, CHECK_SIZE_ONLY) ||
diff_populate_filespec(r, p->two, CHECK_SIZE_ONLY) ||
diff_populate_filespec(r, p->one, &dpf_options) ||
diff_populate_filespec(r, p->two, &dpf_options) ||
(p->one->size != p->two->size) ||
!diff_filespec_is_identical(r, p->one, p->two)) /* (2) */
p->skip_stat_unmatch_result = 1;
@ -6770,7 +6786,7 @@ size_t fill_textconv(struct repository *r,
*outbuf = "";
return 0;
}
if (diff_populate_filespec(r, df, 0))
if (diff_populate_filespec(r, df, NULL))
die("unable to read files to diff");
*outbuf = df->data;
return df->size;

4
diffcore-break.c
View File

@ -62,8 +62,8 @@ static int should_break(struct repository *r,
oideq(&src->oid, &dst->oid))
return 0; /* they are the same */
if (diff_populate_filespec(r, src, 0) ||
diff_populate_filespec(r, dst, 0))
if (diff_populate_filespec(r, src, NULL) ||
diff_populate_filespec(r, dst, NULL))
return 0; /* error but caught downstream */
max_size = ((src->size > dst->size) ? src->size : dst->size);

13
diffcore-rename.c
View File

@ -148,6 +148,9 @@ static int estimate_similarity(struct repository *r,
*/
unsigned long max_size, delta_size, base_size, src_copied, literal_added;
int score;
struct diff_populate_filespec_options dpf_options = {
.check_size_only = 1
};
/* We deal only with regular files. Symlink renames are handled
* only when they are exact matches --- in other words, no edits
@ -166,10 +169,10 @@ static int estimate_similarity(struct repository *r,
* say whether the size is valid or not!)
*/
if (!src->cnt_data &&
diff_populate_filespec(r, src, CHECK_SIZE_ONLY))
diff_populate_filespec(r, src, &dpf_options))
return 0;
if (!dst->cnt_data &&
diff_populate_filespec(r, dst, CHECK_SIZE_ONLY))
diff_populate_filespec(r, dst, &dpf_options))
return 0;
max_size = ((src->size > dst->size) ? src->size : dst->size);
@ -187,9 +190,9 @@ static int estimate_similarity(struct repository *r,
if (max_size * (MAX_SCORE-minimum_score) < delta_size * MAX_SCORE)
return 0;
if (!src->cnt_data && diff_populate_filespec(r, src, 0))
if (!src->cnt_data && diff_populate_filespec(r, src, NULL))
return 0;
if (!dst->cnt_data && diff_populate_filespec(r, dst, 0))
if (!dst->cnt_data && diff_populate_filespec(r, dst, NULL))
return 0;
if (diffcore_count_changes(r, src, dst,
@ -261,7 +264,7 @@ static unsigned int hash_filespec(struct repository *r,
struct diff_filespec *filespec)
{
if (!filespec->oid_valid) {
if (diff_populate_filespec(r, filespec, 0))
if (diff_populate_filespec(r, filespec, NULL))
return 0;
hash_object_file(r->hash_algo, filespec->data, filespec->size,
"blob", &filespec->oid);

9
diffcore.h
View File

@ -65,9 +65,12 @@ void free_filespec(struct diff_filespec *);
void fill_filespec(struct diff_filespec *, const struct object_id *,
int, unsigned short);
#define CHECK_SIZE_ONLY 1
#define CHECK_BINARY 2
int diff_populate_filespec(struct repository *, struct diff_filespec *, unsigned int);
struct diff_populate_filespec_options {
unsigned check_size_only : 1;
unsigned check_binary : 1;
};
int diff_populate_filespec(struct repository *, struct diff_filespec *,
const struct diff_populate_filespec_options *);
void diff_free_filespec_data(struct diff_filespec *);
void diff_free_filespec_blob(struct diff_filespec *);
int diff_filespec_is_binary(struct repository *, struct diff_filespec *);

6
line-log.c
View File

@ -519,7 +519,7 @@ static void fill_line_ends(struct repository *r,
unsigned long *ends = NULL;
char *data = NULL;
if (diff_populate_filespec(r, spec, 0))
if (diff_populate_filespec(r, spec, NULL))
die("Cannot read blob %s", oid_to_hex(&spec->oid));
ALLOC_ARRAY(ends, size);
@ -1045,12 +1045,12 @@ static int process_diff_filepair(struct rev_info *rev,
return 0;
assert(pair->two->oid_valid);
diff_populate_filespec(rev->diffopt.repo, pair->two, 0);
diff_populate_filespec(rev->diffopt.repo, pair->two, NULL);
file_target.ptr = pair->two->data;
file_target.size = pair->two->size;
if (pair->one->oid_valid) {
diff_populate_filespec(rev->diffopt.repo, pair->one, 0);
diff_populate_filespec(rev->diffopt.repo, pair->one, NULL);
file_parent.ptr = pair->one->data;
file_parent.size = pair->one->size;
} else {