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-rw-r--r--diff.c120
1 files changed, 87 insertions, 33 deletions
diff --git a/diff.c b/diff.c
index d24aaa3047..d24f47df99 100644
--- a/diff.c
+++ b/diff.c
@@ -20,7 +20,7 @@
#include "hashmap.h"
#include "ll-merge.h"
#include "string-list.h"
-#include "argv-array.h"
+#include "strvec.h"
#include "graph.h"
#include "packfile.h"
#include "parse-options.h"
@@ -482,14 +482,14 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
static char *quote_two(const char *one, const char *two)
{
- int need_one = quote_c_style(one, NULL, NULL, 1);
- int need_two = quote_c_style(two, NULL, NULL, 1);
+ int need_one = quote_c_style(one, NULL, NULL, CQUOTE_NODQ);
+ int need_two = quote_c_style(two, NULL, NULL, CQUOTE_NODQ);
struct strbuf res = STRBUF_INIT;
if (need_one + need_two) {
strbuf_addch(&res, '"');
- quote_c_style(one, &res, NULL, 1);
- quote_c_style(two, &res, NULL, 1);
+ quote_c_style(one, &res, NULL, CQUOTE_NODQ);
+ quote_c_style(two, &res, NULL, CQUOTE_NODQ);
strbuf_addch(&res, '"');
} else {
strbuf_addstr(&res, one);
@@ -3153,16 +3153,19 @@ static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *o
gather_dirstat(options, &dir, changed, "", 0);
}
+static void free_diffstat_file(struct diffstat_file *f)
+{
+ free(f->print_name);
+ free(f->name);
+ free(f->from_name);
+ free(f);
+}
+
void free_diffstat_info(struct diffstat_t *diffstat)
{
int i;
- for (i = 0; i < diffstat->nr; i++) {
- struct diffstat_file *f = diffstat->files[i];
- free(f->print_name);
- free(f->name);
- free(f->from_name);
- free(f);
- }
+ for (i = 0; i < diffstat->nr; i++)
+ free_diffstat_file(diffstat->files[i]);
free(diffstat->files);
}
@@ -3429,7 +3432,7 @@ static void builtin_diff(const char *name_a,
if (o->submodule_format == DIFF_SUBMODULE_LOG &&
(!one->mode || S_ISGITLINK(one->mode)) &&
(!two->mode || S_ISGITLINK(two->mode))) {
- show_submodule_summary(o, one->path ? one->path : two->path,
+ show_submodule_diff_summary(o, one->path ? one->path : two->path,
&one->oid, &two->oid,
two->dirty_submodule);
return;
@@ -3584,6 +3587,8 @@ static void builtin_diff(const char *name_a,
if (header.len && !o->flags.suppress_diff_headers)
ecbdata.header = &header;
xpp.flags = o->xdl_opts;
+ xpp.ignore_regex = o->ignore_regex;
+ xpp.ignore_regex_nr = o->ignore_regex_nr;
xpp.anchors = o->anchors;
xpp.anchors_nr = o->anchors_nr;
xecfg.ctxlen = o->context;
@@ -3660,7 +3665,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
- int same_contents;
+ int may_differ;
int complete_rewrite = 0;
if (!DIFF_PAIR_UNMERGED(p)) {
@@ -3678,12 +3683,14 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
return;
}
- same_contents = oideq(&one->oid, &two->oid);
+ /* saves some reads if true, not a guarantee of diff outcome */
+ may_differ = !(one->oid_valid && two->oid_valid &&
+ oideq(&one->oid, &two->oid));
if (diff_filespec_is_binary(o->repo, one) ||
diff_filespec_is_binary(o->repo, two)) {
data->is_binary = 1;
- if (same_contents) {
+ if (!may_differ) {
data->added = 0;
data->deleted = 0;
} else {
@@ -3699,7 +3706,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
data->added = count_lines(two->data, two->size);
}
- else if (!same_contents) {
+ else if (may_differ) {
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
@@ -3711,6 +3718,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
memset(&xpp, 0, sizeof(xpp));
memset(&xecfg, 0, sizeof(xecfg));
xpp.flags = o->xdl_opts;
+ xpp.ignore_regex = o->ignore_regex;
+ xpp.ignore_regex_nr = o->ignore_regex_nr;
xpp.anchors = o->anchors;
xpp.anchors_nr = o->anchors_nr;
xecfg.ctxlen = o->context;
@@ -3718,6 +3727,27 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
if (xdi_diff_outf(&mf1, &mf2, discard_hunk_line,
diffstat_consume, diffstat, &xpp, &xecfg))
die("unable to generate diffstat for %s", one->path);
+
+ if (DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two)) {
+ struct diffstat_file *file =
+ diffstat->files[diffstat->nr - 1];
+ /*
+ * Omit diffstats of modified files where nothing changed.
+ * Even if may_differ, this might be the case due to
+ * ignoring whitespace changes, etc.
+ *
+ * But note that we special-case additions, deletions,
+ * renames, and mode changes as adding an empty file,
+ * for example is still of interest.
+ */
+ if ((p->status == DIFF_STATUS_MODIFIED)
+ && !file->added
+ && !file->deleted
+ && one->mode == two->mode) {
+ free_diffstat_file(file);
+ diffstat->nr--;
+ }
+ }
}
diff_free_filespec_data(one);
@@ -4192,14 +4222,14 @@ static struct diff_tempfile *prepare_temp_file(struct repository *r,
}
static void add_external_diff_name(struct repository *r,
- struct argv_array *argv,
+ struct strvec *argv,
const char *name,
struct diff_filespec *df)
{
struct diff_tempfile *temp = prepare_temp_file(r, name, df);
- argv_array_push(argv, temp->name);
- argv_array_push(argv, temp->hex);
- argv_array_push(argv, temp->mode);
+ strvec_push(argv, temp->name);
+ strvec_push(argv, temp->hex);
+ strvec_push(argv, temp->mode);
}
/* An external diff command takes:
@@ -4216,12 +4246,12 @@ static void run_external_diff(const char *pgm,
const char *xfrm_msg,
struct diff_options *o)
{
- struct argv_array argv = ARGV_ARRAY_INIT;
- struct argv_array env = ARGV_ARRAY_INIT;
+ struct strvec argv = STRVEC_INIT;
+ struct strvec env = STRVEC_INIT;
struct diff_queue_struct *q = &diff_queued_diff;
- argv_array_push(&argv, pgm);
- argv_array_push(&argv, name);
+ strvec_push(&argv, pgm);
+ strvec_push(&argv, name);
if (one && two) {
add_external_diff_name(o->repo, &argv, name, one);
@@ -4229,22 +4259,22 @@ static void run_external_diff(const char *pgm,
add_external_diff_name(o->repo, &argv, name, two);
else {
add_external_diff_name(o->repo, &argv, other, two);
- argv_array_push(&argv, other);
- argv_array_push(&argv, xfrm_msg);
+ strvec_push(&argv, other);
+ strvec_push(&argv, xfrm_msg);
}
}
- argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter);
- argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr);
+ strvec_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter);
+ strvec_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr);
diff_free_filespec_data(one);
diff_free_filespec_data(two);
- if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv))
+ if (run_command_v_opt_cd_env(argv.v, RUN_USING_SHELL, NULL, env.v))
die(_("external diff died, stopping at %s"), name);
remove_tempfile();
- argv_array_clear(&argv);
- argv_array_clear(&env);
+ strvec_clear(&argv);
+ strvec_clear(&env);
}
static int similarity_index(struct diff_filepair *p)
@@ -4319,7 +4349,10 @@ static void fill_metainfo(struct strbuf *msg,
}
if (one && two && !oideq(&one->oid, &two->oid)) {
const unsigned hexsz = the_hash_algo->hexsz;
- int abbrev = o->flags.full_index ? hexsz : DEFAULT_ABBREV;
+ int abbrev = o->abbrev ? o->abbrev : DEFAULT_ABBREV;
+
+ if (o->flags.full_index)
+ abbrev = hexsz;
if (o->flags.binary) {
mmfile_t mf;
@@ -5174,6 +5207,22 @@ static int diff_opt_patience(const struct option *opt,
return 0;
}
+static int diff_opt_ignore_regex(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct diff_options *options = opt->value;
+ regex_t *regex;
+
+ BUG_ON_OPT_NEG(unset);
+ regex = xmalloc(sizeof(*regex));
+ if (regcomp(regex, arg, REG_EXTENDED | REG_NEWLINE))
+ return error(_("invalid regex given to -I: '%s'"), arg);
+ ALLOC_GROW(options->ignore_regex, options->ignore_regex_nr + 1,
+ options->ignore_regex_alloc);
+ options->ignore_regex[options->ignore_regex_nr++] = regex;
+ return 0;
+}
+
static int diff_opt_pickaxe_regex(const struct option *opt,
const char *arg, int unset)
{
@@ -5462,6 +5511,9 @@ static void prep_parse_options(struct diff_options *options)
OPT_BIT_F(0, "ignore-blank-lines", &options->xdl_opts,
N_("ignore changes whose lines are all blank"),
XDF_IGNORE_BLANK_LINES, PARSE_OPT_NONEG),
+ OPT_CALLBACK_F('I', "ignore-matching-lines", options, N_("<regex>"),
+ N_("ignore changes whose all lines match <regex>"),
+ 0, diff_opt_ignore_regex),
OPT_BIT(0, "indent-heuristic", &options->xdl_opts,
N_("heuristic to shift diff hunk boundaries for easy reading"),
XDF_INDENT_HEURISTIC),
@@ -6044,6 +6096,8 @@ static void patch_id_consume(void *priv, char *line, unsigned long len)
struct patch_id_t *data = priv;
int new_len;
+ if (len > 12 && starts_with(line, "\\ "))
+ return;
new_len = remove_space(line, len);
the_hash_algo->update_fn(data->ctx, line, new_len);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-29 18:19:44 +0000