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-rw-r--r--diff.c143
1 files changed, 68 insertions, 75 deletions
diff --git a/diff.c b/diff.c
index f2fff4667d..36679aaf4e 100644
--- a/diff.c
+++ b/diff.c
@@ -16,6 +16,7 @@
#include "submodule.h"
#include "ll-merge.h"
#include "string-list.h"
+#include "argv-array.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
@@ -1361,11 +1362,7 @@ static struct diffstat_file *diffstat_add(struct diffstat_t *diffstat,
{
struct diffstat_file *x;
x = xcalloc(sizeof (*x), 1);
- if (diffstat->nr == diffstat->alloc) {
- diffstat->alloc = alloc_nr(diffstat->alloc);
- diffstat->files = xrealloc(diffstat->files,
- diffstat->alloc * sizeof(x));
- }
+ ALLOC_GROW(diffstat->files, diffstat->nr + 1, diffstat->alloc);
diffstat->files[diffstat->nr++] = x;
if (name_b) {
x->from_name = xstrdup(name_a);
@@ -1465,20 +1462,12 @@ int print_stat_summary(FILE *fp, int files, int insertions, int deletions)
* but nothing about added/removed lines? Is this a bug in Git?").
*/
if (insertions || deletions == 0) {
- /*
- * TRANSLATORS: "+" in (+) is a line addition marker;
- * do not translate it.
- */
strbuf_addf(&sb,
(insertions == 1) ? ", %d insertion(+)" : ", %d insertions(+)",
insertions);
}
if (deletions || insertions == 0) {
- /*
- * TRANSLATORS: "-" in (-) is a line removal marker;
- * do not translate it.
- */
strbuf_addf(&sb,
(deletions == 1) ? ", %d deletion(-)" : ", %d deletions(-)",
deletions);
@@ -2845,8 +2834,9 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
remove_tempfile_installed = 1;
}
- if (!one->sha1_valid ||
- reuse_worktree_file(name, one->sha1, 1)) {
+ if (!S_ISGITLINK(one->mode) &&
+ (!one->sha1_valid ||
+ reuse_worktree_file(name, one->sha1, 1))) {
struct stat st;
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
@@ -2905,9 +2895,8 @@ static void run_external_diff(const char *pgm,
int complete_rewrite,
struct diff_options *o)
{
- const char *spawn_arg[10];
+ struct argv_array argv = ARGV_ARRAY_INIT;
int retval;
- const char **arg = &spawn_arg[0];
struct diff_queue_struct *q = &diff_queued_diff;
const char *env[3] = { NULL };
char env_counter[50];
@@ -2918,23 +2907,22 @@ static void run_external_diff(const char *pgm,
const char *othername = (other ? other : name);
temp_one = prepare_temp_file(name, one);
temp_two = prepare_temp_file(othername, two);
- *arg++ = pgm;
- *arg++ = name;
- *arg++ = temp_one->name;
- *arg++ = temp_one->hex;
- *arg++ = temp_one->mode;
- *arg++ = temp_two->name;
- *arg++ = temp_two->hex;
- *arg++ = temp_two->mode;
+ argv_array_push(&argv, pgm);
+ argv_array_push(&argv, name);
+ argv_array_push(&argv, temp_one->name);
+ argv_array_push(&argv, temp_one->hex);
+ argv_array_push(&argv, temp_one->mode);
+ argv_array_push(&argv, temp_two->name);
+ argv_array_push(&argv, temp_two->hex);
+ argv_array_push(&argv, temp_two->mode);
if (other) {
- *arg++ = other;
- *arg++ = xfrm_msg;
+ argv_array_push(&argv, other);
+ argv_array_push(&argv, xfrm_msg);
}
} else {
- *arg++ = pgm;
- *arg++ = name;
+ argv_array_push(&argv, pgm);
+ argv_array_push(&argv, name);
}
- *arg = NULL;
fflush(NULL);
env[0] = env_counter;
@@ -2943,8 +2931,9 @@ static void run_external_diff(const char *pgm,
env[1] = env_total;
snprintf(env_total, sizeof(env_total), "GIT_DIFF_PATH_TOTAL=%d", q->nr);
- retval = run_command_v_opt_cd_env(spawn_arg, RUN_USING_SHELL, NULL, env);
+ retval = run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env);
remove_tempfile();
+ argv_array_clear(&argv);
if (retval) {
fprintf(stderr, "external diff died, stopping at %s.\n", name);
exit(1);
@@ -3366,14 +3355,11 @@ static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *va
if (c != '-')
return 0;
arg++;
- eq = strchr(arg, '=');
- if (eq)
- len = eq - arg;
- else
- len = strlen(arg);
+ eq = strchrnul(arg, '=');
+ len = eq - arg;
if (!len || strncmp(arg, arg_long, len))
return 0;
- if (eq) {
+ if (*eq) {
int n;
char *end;
if (!isdigit(*++eq))
@@ -3600,14 +3586,6 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
return 0;
}
-/* Used only by "diff-files" and "diff --no-index" */
-void handle_deprecated_show_diff_q(struct diff_options *opt)
-{
- warning("'diff -q' and 'diff-files -q' are deprecated.");
- warning("Use 'diff --diff-filter=d' instead to ignore deleted filepairs.");
- parse_diff_filter_opt("d", opt);
-}
-
static void enable_patch_output(int *fmt) {
*fmt &= ~DIFF_FORMAT_NO_OUTPUT;
*fmt |= DIFF_FORMAT_PATCH;
@@ -3942,7 +3920,7 @@ static int diff_scoreopt_parse(const char *opt)
}
}
if (cmd != 'M' && cmd != 'C' && cmd != 'B')
- return -1; /* that is not a -M, -C nor -B option */
+ return -1; /* that is not a -M, -C, or -B option */
opt1 = parse_rename_score(&opt);
if (cmd != 'B')
@@ -3966,11 +3944,7 @@ struct diff_queue_struct diff_queued_diff;
void diff_q(struct diff_queue_struct *queue, struct diff_filepair *dp)
{
- if (queue->alloc <= queue->nr) {
- queue->alloc = alloc_nr(queue->alloc);
- queue->queue = xrealloc(queue->queue,
- sizeof(dp) * queue->alloc);
- }
+ ALLOC_GROW(queue->queue, queue->nr + 1, queue->alloc);
queue->queue[queue->nr++] = dp;
}
@@ -4698,6 +4672,38 @@ static int diff_filespec_is_identical(struct diff_filespec *one,
return !memcmp(one->data, two->data, one->size);
}
+static int diff_filespec_check_stat_unmatch(struct diff_filepair *p)
+{
+ if (p->done_skip_stat_unmatch)
+ return p->skip_stat_unmatch_result;
+
+ p->done_skip_stat_unmatch = 1;
+ p->skip_stat_unmatch_result = 0;
+ /*
+ * 1. Entries that come from stat info dirtiness
+ * always have both sides (iow, not create/delete),
+ * one side of the object name is unknown, with
+ * the same mode and size. Keep the ones that
+ * do not match these criteria. They have real
+ * differences.
+ *
+ * 2. At this point, the file is known to be modified,
+ * with the same mode and size, and the object
+ * name of one side is unknown. Need to inspect
+ * the identical contents.
+ */
+ if (!DIFF_FILE_VALID(p->one) || /* (1) */
+ !DIFF_FILE_VALID(p->two) ||
+ (p->one->sha1_valid && p->two->sha1_valid) ||
+ (p->one->mode != p->two->mode) ||
+ diff_populate_filespec(p->one, 1) ||
+ diff_populate_filespec(p->two, 1) ||
+ (p->one->size != p->two->size) ||
+ !diff_filespec_is_identical(p->one, p->two)) /* (2) */
+ p->skip_stat_unmatch_result = 1;
+ return p->skip_stat_unmatch_result;
+}
+
static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
{
int i;
@@ -4708,27 +4714,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
- /*
- * 1. Entries that come from stat info dirtiness
- * always have both sides (iow, not create/delete),
- * one side of the object name is unknown, with
- * the same mode and size. Keep the ones that
- * do not match these criteria. They have real
- * differences.
- *
- * 2. At this point, the file is known to be modified,
- * with the same mode and size, and the object
- * name of one side is unknown. Need to inspect
- * the identical contents.
- */
- if (!DIFF_FILE_VALID(p->one) || /* (1) */
- !DIFF_FILE_VALID(p->two) ||
- (p->one->sha1_valid && p->two->sha1_valid) ||
- (p->one->mode != p->two->mode) ||
- diff_populate_filespec(p->one, 1) ||
- diff_populate_filespec(p->two, 1) ||
- (p->one->size != p->two->size) ||
- !diff_filespec_is_identical(p->one, p->two)) /* (2) */
+ if (diff_filespec_check_stat_unmatch(p))
diff_q(&outq, p);
else {
/*
@@ -4892,6 +4878,7 @@ void diff_change(struct diff_options *options,
unsigned old_dirty_submodule, unsigned new_dirty_submodule)
{
struct diff_filespec *one, *two;
+ struct diff_filepair *p;
if (S_ISGITLINK(old_mode) && S_ISGITLINK(new_mode) &&
is_submodule_ignored(concatpath, options))
@@ -4918,10 +4905,16 @@ void diff_change(struct diff_options *options,
fill_filespec(two, new_sha1, new_sha1_valid, new_mode);
one->dirty_submodule = old_dirty_submodule;
two->dirty_submodule = new_dirty_submodule;
+ p = diff_queue(&diff_queued_diff, one, two);
- diff_queue(&diff_queued_diff, one, two);
- if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
- DIFF_OPT_SET(options, HAS_CHANGES);
+ if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
+ return;
+
+ if (DIFF_OPT_TST(options, QUICK) && options->skip_stat_unmatch &&
+ !diff_filespec_check_stat_unmatch(p))
+ return;
+
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
struct diff_filepair *diff_unmerge(struct diff_options *options, const char *path)
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