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-rw-r--r--diff.c137
1 files changed, 87 insertions, 50 deletions
diff --git a/diff.c b/diff.c
index 915f4d6e9f..136d44b455 100644
--- a/diff.c
+++ b/diff.c
@@ -177,7 +177,7 @@ static int parse_submodule_params(struct diff_options *options, const char *valu
return 0;
}
-static int git_config_rename(const char *var, const char *value)
+int git_config_rename(const char *var, const char *value)
{
if (!value)
return DIFF_DETECT_RENAME;
@@ -1184,7 +1184,7 @@ static void emit_diff_symbol_from_struct(struct diff_options *o,
fputs(o->stat_sep, o->file);
break;
default:
- die("BUG: unknown diff symbol");
+ BUG("unknown diff symbol");
}
strbuf_release(&sb);
}
@@ -1343,7 +1343,7 @@ static struct diff_tempfile *claim_diff_tempfile(void) {
for (i = 0; i < ARRAY_SIZE(diff_temp); i++)
if (!diff_temp[i].name)
return diff_temp + i;
- die("BUG: diff is failing to clean up its tempfiles");
+ BUG("diff is failing to clean up its tempfiles");
}
static void remove_tempfile(void)
@@ -2045,11 +2045,10 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
}
}
-static char *pprint_rename(const char *a, const char *b)
+static void pprint_rename(struct strbuf *name, const char *a, const char *b)
{
const char *old_name = a;
const char *new_name = b;
- struct strbuf name = STRBUF_INIT;
int pfx_length, sfx_length;
int pfx_adjust_for_slash;
int len_a = strlen(a);
@@ -2059,10 +2058,10 @@ static char *pprint_rename(const char *a, const char *b)
int qlen_b = quote_c_style(b, NULL, NULL, 0);
if (qlen_a || qlen_b) {
- quote_c_style(a, &name, NULL, 0);
- strbuf_addstr(&name, " => ");
- quote_c_style(b, &name, NULL, 0);
- return strbuf_detach(&name, NULL);
+ quote_c_style(a, name, NULL, 0);
+ strbuf_addstr(name, " => ");
+ quote_c_style(b, name, NULL, 0);
+ return;
}
/* Find common prefix */
@@ -2109,19 +2108,18 @@ static char *pprint_rename(const char *a, const char *b)
if (b_midlen < 0)
b_midlen = 0;
- strbuf_grow(&name, pfx_length + a_midlen + b_midlen + sfx_length + 7);
+ strbuf_grow(name, pfx_length + a_midlen + b_midlen + sfx_length + 7);
if (pfx_length + sfx_length) {
- strbuf_add(&name, a, pfx_length);
- strbuf_addch(&name, '{');
+ strbuf_add(name, a, pfx_length);
+ strbuf_addch(name, '{');
}
- strbuf_add(&name, a + pfx_length, a_midlen);
- strbuf_addstr(&name, " => ");
- strbuf_add(&name, b + pfx_length, b_midlen);
+ strbuf_add(name, a + pfx_length, a_midlen);
+ strbuf_addstr(name, " => ");
+ strbuf_add(name, b + pfx_length, b_midlen);
if (pfx_length + sfx_length) {
- strbuf_addch(&name, '}');
- strbuf_add(&name, a + len_a - sfx_length, sfx_length);
+ strbuf_addch(name, '}');
+ strbuf_add(name, a + len_a - sfx_length, sfx_length);
}
- return strbuf_detach(&name, NULL);
}
struct diffstat_t {
@@ -2131,6 +2129,7 @@ struct diffstat_t {
char *from_name;
char *name;
char *print_name;
+ const char *comments;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
@@ -2197,23 +2196,20 @@ static void show_graph(struct strbuf *out, char ch, int cnt,
static void fill_print_name(struct diffstat_file *file)
{
- char *pname;
+ struct strbuf pname = STRBUF_INIT;
if (file->print_name)
return;
- if (!file->is_renamed) {
- struct strbuf buf = STRBUF_INIT;
- if (quote_c_style(file->name, &buf, NULL, 0)) {
- pname = strbuf_detach(&buf, NULL);
- } else {
- pname = file->name;
- strbuf_release(&buf);
- }
- } else {
- pname = pprint_rename(file->from_name, file->name);
- }
- file->print_name = pname;
+ if (file->is_renamed)
+ pprint_rename(&pname, file->from_name, file->name);
+ else
+ quote_c_style(file->name, &pname, NULL, 0);
+
+ if (file->comments)
+ strbuf_addf(&pname, " (%s)", file->comments);
+
+ file->print_name = strbuf_detach(&pname, NULL);
}
static void print_stat_summary_inserts_deletes(struct diff_options *options,
@@ -2797,8 +2793,7 @@ static void free_diffstat_info(struct diffstat_t *diffstat)
int i;
for (i = 0; i < diffstat->nr; i++) {
struct diffstat_file *f = diffstat->files[i];
- if (f->name != f->print_name)
- free(f->print_name);
+ free(f->print_name);
free(f->name);
free(f->from_name);
free(f);
@@ -3248,6 +3243,32 @@ static void builtin_diff(const char *name_a,
return;
}
+static char *get_compact_summary(const struct diff_filepair *p, int is_renamed)
+{
+ if (!is_renamed) {
+ if (p->status == DIFF_STATUS_ADDED) {
+ if (S_ISLNK(p->two->mode))
+ return "new +l";
+ else if ((p->two->mode & 0777) == 0755)
+ return "new +x";
+ else
+ return "new";
+ } else if (p->status == DIFF_STATUS_DELETED)
+ return "gone";
+ }
+ if (S_ISLNK(p->one->mode) && !S_ISLNK(p->two->mode))
+ return "mode -l";
+ else if (!S_ISLNK(p->one->mode) && S_ISLNK(p->two->mode))
+ return "mode +l";
+ else if ((p->one->mode & 0777) == 0644 &&
+ (p->two->mode & 0777) == 0755)
+ return "mode +x";
+ else if ((p->one->mode & 0777) == 0755 &&
+ (p->two->mode & 0777) == 0644)
+ return "mode -x";
+ return NULL;
+}
+
static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
@@ -3267,6 +3288,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
data = diffstat_add(diffstat, name_a, name_b);
data->is_interesting = p->status != DIFF_STATUS_UNKNOWN;
+ if (o->flags.stat_with_summary)
+ data->comments = get_compact_summary(p, data->is_renamed);
if (!one || !two) {
data->is_unmerged = 1;
@@ -3449,7 +3472,7 @@ static int reuse_worktree_file(const char *name, const struct object_id *oid, in
* objects however would tend to be slower as they need
* to be individually opened and inflated.
*/
- if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(oid->hash))
+ if (!FAST_WORKING_DIRECTORY && !want_file && has_object_pack(oid))
return 0;
/*
@@ -3615,7 +3638,8 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
else {
enum object_type type;
if (size_only || (flags & CHECK_BINARY)) {
- type = sha1_object_info(s->oid.hash, &s->size);
+ type = oid_object_info(the_repository, &s->oid,
+ &s->size);
if (type < 0)
die("unable to read %s",
oid_to_hex(&s->oid));
@@ -3626,7 +3650,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
return 0;
}
}
- s->data = read_sha1_file(s->oid.hash, &type, &s->size);
+ s->data = read_object_file(&s->oid, &type, &s->size);
if (!s->data)
die("unable to read %s", oid_to_hex(&s->oid));
s->should_free = 1;
@@ -3811,13 +3835,13 @@ static int similarity_index(struct diff_filepair *p)
static const char *diff_abbrev_oid(const struct object_id *oid, int abbrev)
{
if (startup_info->have_repository)
- return find_unique_abbrev(oid->hash, abbrev);
+ return find_unique_abbrev(oid, abbrev);
else {
char *hex = oid_to_hex(oid);
if (abbrev < 0)
abbrev = FALLBACK_DEFAULT_ABBREV;
if (abbrev > GIT_SHA1_HEXSZ)
- die("BUG: oid abbreviation out of range: %d", abbrev);
+ BUG("oid abbreviation out of range: %d", abbrev);
if (abbrev)
hex[abbrev] = '\0';
return hex;
@@ -3874,13 +3898,14 @@ static void fill_metainfo(struct strbuf *msg,
*must_show_header = 0;
}
if (one && two && oidcmp(&one->oid, &two->oid)) {
- int abbrev = o->flags.full_index ? 40 : DEFAULT_ABBREV;
+ const unsigned hexsz = the_hash_algo->hexsz;
+ int abbrev = o->flags.full_index ? hexsz : DEFAULT_ABBREV;
if (o->flags.binary) {
mmfile_t mf;
if ((!fill_mmfile(&mf, one) && diff_filespec_is_binary(one)) ||
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
- abbrev = 40;
+ abbrev = hexsz;
}
strbuf_addf(msg, "%s%sindex %s..%s", line_prefix, set,
diff_abbrev_oid(&one->oid, abbrev),
@@ -4115,6 +4140,11 @@ void diff_setup_done(struct diff_options *options)
DIFF_FORMAT_NAME_STATUS |
DIFF_FORMAT_CHECKDIFF |
DIFF_FORMAT_NO_OUTPUT;
+ /*
+ * This must be signed because we're comparing against a potentially
+ * negative value.
+ */
+ const int hexsz = the_hash_algo->hexsz;
if (options->set_default)
options->set_default(options);
@@ -4195,8 +4225,8 @@ void diff_setup_done(struct diff_options *options)
*/
read_cache();
}
- if (40 < options->abbrev)
- options->abbrev = 40; /* full */
+ if (hexsz < options->abbrev)
+ options->abbrev = hexsz; /* full */
/*
* It does not make sense to show the first hit we happened
@@ -4311,7 +4341,7 @@ static int stat_opt(struct diff_options *options, const char **av)
int argcount = 1;
if (!skip_prefix(arg, "--stat", &arg))
- die("BUG: stat option does not begin with --stat: %s", arg);
+ BUG("stat option does not begin with --stat: %s", arg);
end = (char *)arg;
switch (*arg) {
@@ -4553,6 +4583,11 @@ int diff_opt_parse(struct diff_options *options,
else if (starts_with(arg, "--stat"))
/* --stat, --stat-width, --stat-name-width, or --stat-count */
return stat_opt(options, av);
+ else if (!strcmp(arg, "--compact-summary")) {
+ options->flags.stat_with_summary = 1;
+ options->output_format |= DIFF_FORMAT_DIFFSTAT;
+ } else if (!strcmp(arg, "--no-compact-summary"))
+ options->flags.stat_with_summary = 0;
/* renames options */
else if (starts_with(arg, "-B") ||
@@ -4769,8 +4804,8 @@ int diff_opt_parse(struct diff_options *options,
options->abbrev = strtoul(arg, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
- else if (40 < options->abbrev)
- options->abbrev = 40;
+ else if (the_hash_algo->hexsz < options->abbrev)
+ options->abbrev = the_hash_algo->hexsz;
}
else if ((argcount = parse_long_opt("src-prefix", av, &optarg))) {
options->a_prefix = optarg;
@@ -5241,10 +5276,12 @@ static void show_rename_copy(struct diff_options *opt, const char *renamecopy,
struct diff_filepair *p)
{
struct strbuf sb = STRBUF_INIT;
- char *names = pprint_rename(p->one->path, p->two->path);
+ struct strbuf names = STRBUF_INIT;
+
+ pprint_rename(&names, p->one->path, p->two->path);
strbuf_addf(&sb, " %s %s (%d%%)\n",
- renamecopy, names, similarity_index(p));
- free(names);
+ renamecopy, names.buf, similarity_index(p));
+ strbuf_release(&names);
emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY,
sb.buf, sb.len, 0);
show_mode_change(opt, p, 0);
@@ -5489,7 +5526,7 @@ static void diff_flush_patch_all_file_pairs(struct diff_options *o)
struct diff_queue_struct *q = &diff_queued_diff;
if (WSEH_NEW & WS_RULE_MASK)
- die("BUG: WS rules bit mask overlaps with diff symbol flags");
+ BUG("WS rules bit mask overlaps with diff symbol flags");
if (o->color_moved)
o->emitted_symbols = &esm;
@@ -6023,7 +6060,7 @@ size_t fill_textconv(struct userdiff_driver *driver,
}
if (!driver->textconv)
- die("BUG: fill_textconv called with non-textconv driver");
+ BUG("fill_textconv called with non-textconv driver");
if (driver->textconv_cache && df->oid_valid) {
*outbuf = notes_cache_get(driver->textconv_cache,
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-15 13:50:58 +0000