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Merge branch 'lt/diff-stat-show-0-lines'

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"git diff --stat" miscounted the total number of changed lines when
binary files were involved and hidden beyond --stat-count.  It also
miscounted the total number of changed files when there were
unmerged paths.

* lt/diff-stat-show-0-lines:
  t4049: refocus tests
  diff --shortstat: do not count "unmerged" entries
  diff --stat: do not count "unmerged" entries
  diff --stat: move the "total count" logic to the last loop
  diff --stat: use "file" temporary variable to refer to data->files[i]
  diff --stat: status of unmodified pair in diff-q is not zero
  test: add failing tests for "diff --stat" to t4049
This commit is contained in:
Junio C Hamano
2012-11-29 12:53:54 -08:00
parent 545492f078 de9095955c
commit a4eab8f38e
2 changed files with 74 additions and 28 deletions
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54
diff.c
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@ -1497,8 +1497,8 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
for (i = 0; (i < count) && (i < data->nr); i++) {
struct diffstat_file *file = data->files[i];
uintmax_t change = file->added + file->deleted;
if (!data->files[i]->is_interesting &&
(change == 0)) {
if (!file->is_interesting && (change == 0)) {
count++; /* not shown == room for one more */
continue;
}
@ -1525,7 +1525,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
if (max_change < change)
max_change = change;
}
count = i; /* min(count, data->nr) */
count = i; /* where we can stop scanning in data->files[] */
/*
* We have width = stat_width or term_columns() columns total.
@ -1613,16 +1613,15 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
*/
for (i = 0; i < count; i++) {
const char *prefix = "";
char *name = data->files[i]->print_name;
uintmax_t added = data->files[i]->added;
uintmax_t deleted = data->files[i]->deleted;
struct diffstat_file *file = data->files[i];
char *name = file->print_name;
uintmax_t added = file->added;
uintmax_t deleted = file->deleted;
int name_len;
if (!data->files[i]->is_interesting &&
(added + deleted == 0)) {
total_files--;
if (!file->is_interesting && (added + deleted == 0))
continue;
}
/*
* "scale" the filename
*/
@ -1638,7 +1637,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
name = slash;
}
if (data->files[i]->is_binary) {
if (file->is_binary) {
fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
fprintf(options->file, " %*s", number_width, "Bin");
@ -1655,7 +1654,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
fprintf(options->file, "\n");
continue;
}
else if (data->files[i]->is_unmerged) {
else if (file->is_unmerged) {
fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
fprintf(options->file, " Unmerged\n");
@ -1667,8 +1666,6 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
*/
add = added;
del = deleted;
adds += add;
dels += del;
if (graph_width <= max_change) {
int total = add + del;
@ -1694,16 +1691,24 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
show_graph(options->file, '-', del, del_c, reset);
fprintf(options->file, "\n");
}
for (i = count; i < data->nr; i++) {
uintmax_t added = data->files[i]->added;
uintmax_t deleted = data->files[i]->deleted;
if (!data->files[i]->is_interesting &&
(added + deleted == 0)) {
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
uintmax_t added = file->added;
uintmax_t deleted = file->deleted;
if (file->is_unmerged ||
(!file->is_interesting && (added + deleted == 0))) {
total_files--;
continue;
}
adds += added;
dels += deleted;
if (!file->is_binary) {
adds += added;
dels += deleted;
}
if (i < count)
continue;
if (!extra_shown)
fprintf(options->file, "%s ...\n", line_prefix);
extra_shown = 1;
@ -1723,9 +1728,8 @@ static void show_shortstats(struct diffstat_t *data, struct diff_options *option
int added = data->files[i]->added;
int deleted= data->files[i]->deleted;
if (data->files[i]->is_unmerged)
continue;
if (!data->files[i]->is_interesting && (added + deleted == 0)) {
if (data->files[i]->is_unmerged ||
(!data->files[i]->is_interesting && (added + deleted == 0))) {
total_files--;
} else if (!data->files[i]->is_binary) { /* don't count bytes */
adds += added;
@ -2438,7 +2442,7 @@ 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 != 0;
data->is_interesting = p->status != DIFF_STATUS_UNKNOWN;
if (!one || !two) {
data->is_unmerged = 1;