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

"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
  Fix "git diff --stat" for interesting - but empty - file changes
maint
Junio C Hamano 2012-12-07 14:10:17 -08:00
parent 7c65b2ebb7 de9095955c
commit 6a402843c2
4 changed files with 110 additions and 58 deletions
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69
diff.c
View File

@ -1300,6 +1300,7 @@ struct diffstat_t {
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
unsigned is_interesting:1;
uintmax_t added, deleted;
} **files;
};
@ -1469,8 +1470,8 @@ 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_renamed &&
(change == 0)) {

if (!file->is_interesting && (change == 0)) {
count++; /* not shown == room for one more */
continue;
}
@ -1497,7 +1498,7 @@ 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.
@ -1585,16 +1586,15 @@ 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_renamed &&
(added + deleted == 0)) {
total_files--;
if (!file->is_interesting && (added + deleted == 0))
continue;
}

/*
* "scale" the filename
*/
@ -1610,7 +1610,7 @@ 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");
@ -1627,7 +1627,7 @@ 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");
@ -1639,8 +1639,6 @@ 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;
@ -1666,16 +1664,24 @@ 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_renamed &&
(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;
@ -1695,9 +1701,8 @@ 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_renamed && (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;
@ -2397,13 +2402,20 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *two,
struct diffstat_t *diffstat,
struct diff_options *o,
int complete_rewrite)
struct diff_filepair *p)
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
int same_contents;
int complete_rewrite = 0;

if (!DIFF_PAIR_UNMERGED(p)) {
if (p->status == DIFF_STATUS_MODIFIED && p->score)
complete_rewrite = 1;
}

data = diffstat_add(diffstat, name_a, name_b);
data->is_interesting = p->status != DIFF_STATUS_UNKNOWN;

if (!one || !two) {
data->is_unmerged = 1;
@ -3114,11 +3126,10 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
{
const char *name;
const char *other;
int complete_rewrite = 0;

if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, o, 0);
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, o, p);
return;
}

@ -3131,9 +3142,7 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);

if (p->status == DIFF_STATUS_MODIFIED && p->score)
complete_rewrite = 1;
builtin_diffstat(name, other, p->one, p->two, diffstat, o, complete_rewrite);
builtin_diffstat(name, other, p->one, p->two, diffstat, o, p);
}

static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)

46
t/t4006-diff-mode.sh
View File

@ -32,28 +32,28 @@ test_expect_success 'prepare binary file' '
git commit -m binbin
'

test_expect_success '--stat output after text chmod' '
test_chmod -x rezrov &&
echo " 0 files changed" >expect &&
git diff HEAD --stat >actual &&
test_i18ncmp expect actual
'

test_expect_success '--shortstat output after text chmod' '
git diff HEAD --shortstat >actual &&
test_i18ncmp expect actual
'

test_expect_success '--stat output after binary chmod' '
test_chmod +x binbin &&
echo " 0 files changed" >expect &&
git diff HEAD --stat >actual &&
test_i18ncmp expect actual
'

test_expect_success '--shortstat output after binary chmod' '
git diff HEAD --shortstat >actual &&
test_i18ncmp expect actual
'
# test_expect_success '--stat output after text chmod' '
# test_chmod -x rezrov &&
# echo " 0 files changed" >expect &&
# git diff HEAD --stat >actual &&
# test_i18ncmp expect actual
# '
#
# test_expect_success '--shortstat output after text chmod' '
# git diff HEAD --shortstat >actual &&
# test_i18ncmp expect actual
# '
#
# test_expect_success '--stat output after binary chmod' '
# test_chmod +x binbin &&
# echo " 0 files changed" >expect &&
# git diff HEAD --stat >actual &&
# test_i18ncmp expect actual
# '
#
# test_expect_success '--shortstat output after binary chmod' '
# git diff HEAD --shortstat >actual &&
# test_i18ncmp expect actual
# '

test_done

49
t/t4049-diff-stat-count.sh
View File

@ -4,19 +4,62 @@
test_description='diff --stat-count'
. ./test-lib.sh

test_expect_success setup '
test_expect_success 'setup' '
>a &&
>b &&
>c &&
>d &&
git add a b c d &&
chmod +x c d &&
git commit -m initial
'

test_expect_success 'mode-only change show as a 0-line change' '
git reset --hard &&
test_chmod +x b d &&
echo a >a &&
echo c >c &&
cat >expect <<-\EOF
a | 1 +
b | 0
...
4 files changed, 2 insertions(+)
EOF
git diff --stat --stat-count=2 HEAD >actual &&
test_i18ncmp expect actual
'

test_expect_success 'binary changes do not count in lines' '
git reset --hard &&
echo a >a &&
echo c >c &&
cat "$TEST_DIRECTORY"/test-binary-1.png >d &&
cat >expect <<-\EOF
a | 1 +
c | 1 +
...
3 files changed, 2 insertions(+)
EOF
git diff --stat --stat-count=2 >actual &&
test_i18ncmp expect actual
'

test_expect_success 'exclude unmerged entries from total file count' '
git reset --hard &&
echo a >a &&
echo b >b &&
git ls-files -s a >x &&
git rm -f d &&
for stage in 1 2 3
do
sed -e "s/ 0 a/ $stage d/" x
done |
git update-index --index-info &&
echo d >d &&
cat >expect <<-\EOF
a | 1 +
b | 1 +
2 files changed, 2 insertions(+)
...
3 files changed, 3 insertions(+)
EOF
git diff --stat --stat-count=2 >actual &&
test_i18ncmp expect actual

4
t/t4205-log-pretty-formats.sh
View File

@ -85,7 +85,7 @@ test_expect_success 'NUL termination' '

test_expect_success 'NUL separation with --stat' '
stat0_part=$(git diff --stat HEAD^ HEAD) &&
stat1_part=$(git diff --stat --root HEAD^) &&
stat1_part=$(git diff-tree --no-commit-id --stat --root HEAD^) &&
printf "add bar\n$stat0_part\n\0initial\n$stat1_part\n" >expected &&
git log -z --stat --pretty="format:%s" >actual &&
test_i18ncmp expected actual
@ -93,7 +93,7 @@ test_expect_success 'NUL separation with --stat' '

test_expect_failure 'NUL termination with --stat' '
stat0_part=$(git diff --stat HEAD^ HEAD) &&
stat1_part=$(git diff --stat --root HEAD^) &&
stat1_part=$(git diff-tree --no-commit-id --stat --root HEAD^) &&
printf "add bar\n$stat0_part\n\0initial\n$stat1_part\n\0" >expected &&
git log -z --stat --pretty="tformat:%s" >actual &&
test_i18ncmp expected actual