[PATCH 4/5] diff: add --dynstat
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
diff.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------
diff.h | 1 +
2 files changed, 92 insertions(+), 9 deletions(-)
diff --git a/diff.c b/diff.c
index 8c448b5..b945ad6 100644
--- a/diff.c
+++ b/diff.c
@@ -1226,6 +1226,7 @@ struct diffstat_t {
unsigned is_renamed:1;
uintmax_t added, deleted;
} **files;
+ struct strbuf dynstat;
};
static struct diffstat_file *diffstat_add(struct diffstat_t *diffstat,
@@ -1779,6 +1780,7 @@ static void free_diffstat_info(struct diffstat_t *diffstat)
free(f);
}
free(diffstat->files);
+ strbuf_release(&diffstat->dynstat);
}
struct checkdiff_t {
@@ -3332,6 +3334,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_NUMSTAT;
else if (!strcmp(arg, "--shortstat"))
options->output_format |= DIFF_FORMAT_SHORTSTAT;
+ else if (!strcmp(arg, "--dynstat"))
+ options->output_format |= DIFF_FORMAT_DYNSTAT;
else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat"))
return parse_dirstat_opt(options, "");
else if (!prefixcmp(arg, "-X"))
@@ -3922,6 +3926,76 @@ static int check_pair_status(struct diff_filepair *p)
}
}
+static int diff_flush_dynstat(struct diff_options *o, struct diffstat_t *diffstat)
+{
+ struct diff_queue_struct *q = &diff_queued_diff;
+ int i, adds = 0, dels = 0, summary_lines = 0, printed_lines = 0, total_files;
+
+ memset(diffstat, 0, sizeof(struct diffstat_t));
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (check_pair_status(p))
+ diff_flush_stat(p, o, diffstat);
+ }
+
+ total_files = diffstat->nr;
+ if (!total_files)
+ return o->output_format;
+
+ /* how many lines for --stat ? */
+ for (i = 0; i < diffstat->nr; i++) {
+ struct diffstat_file *f = diffstat->files[i];
+ if (!f->is_binary && !f->is_unmerged) {
+ if (!f->is_renamed && (f->added + f->deleted == 0))
+ total_files--;
+ else {
+ adds += f->added;
+ dels += f->deleted;
+ }
+ }
+ }
+
+ /* how many lines for --summary ? */
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if ((p->status & (DIFF_STATUS_DELETED | DIFF_STATUS_ADDED |
+ DIFF_STATUS_COPIED | DIFF_STATUS_RENAMED)) ||
+ p->score)
+ summary_lines++;
+ }
+
+ if (printed_lines + total_files < 50) {
+ o->output_format |= DIFF_FORMAT_DIFFSTAT;
+ printed_lines += total_files;
+ if (printed_lines + summary_lines < 50) {
+ printed_lines += summary_lines;
+ o->output_format |= DIFF_FORMAT_SUMMARY;
+ }
+ } else {
+ const char *s;
+ int nr = 0;
+ show_dirstat(o, &diffstat->dynstat);
+ s = diffstat->dynstat.buf;
+
+ /* how many lines for --dirstat ? */
+ while (s && (s = strchr(s, '\n'))) {
+ nr++;
+ s++;
+ }
+ if (nr < 50)
+ printed_lines += nr;
+ else
+ strbuf_release(&diffstat->dynstat);
+ }
+
+ /* how many lines for --patch ? */
+ if (adds + dels < 10 && printed_lines < 10)
+ o->output_format |= DIFF_FORMAT_PATCH;
+
+ o->output_format |= DIFF_FORMAT_SHORTSTAT;
+ return o->output_format;
+}
+
static void flush_one_pair(struct diff_filepair *p, struct diff_options *opt)
{
int fmt = opt->output_format;
@@ -4201,6 +4275,7 @@ void diff_flush(struct diff_options *options)
int i, output_format = options->output_format;
int separator = 0;
int dirstat_by_line = 0;
+ struct diffstat_t diffstat;
/*
* Order: raw, stat, summary, patch
@@ -4221,6 +4296,19 @@ void diff_flush(struct diff_options *options)
separator++;
}
+ memset(&diffstat, 0, sizeof(struct diffstat_t));
+ strbuf_init(&diffstat.dynstat, 0);
+ if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DYNSTAT)) {
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (check_pair_status(p))
+ diff_flush_stat(p, options, &diffstat);
+ }
+ }
+
+ if (output_format & DIFF_FORMAT_DYNSTAT)
+ output_format = diff_flush_dynstat(options, &diffstat);
+
if (output_format & DIFF_FORMAT_DIRSTAT && DIFF_OPT_TST(options, DIRSTAT_BY_LINE))
dirstat_by_line = 1;
@@ -4229,25 +4317,19 @@ void diff_flush(struct diff_options *options)
if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT) ||
dirstat_by_line) {
- struct diffstat_t diffstat;
-
- memset(&diffstat, 0, sizeof(struct diffstat_t));
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (check_pair_status(p))
- diff_flush_stat(p, options, &diffstat);
- }
if (output_format & DIFF_FORMAT_NUMSTAT)
show_numstat(&diffstat, options);
if (output_format & DIFF_FORMAT_DIFFSTAT)
show_stats(&diffstat, options);
+ if ((output_format & DIFF_FORMAT_DYNSTAT) && diffstat.dynstat.len)
+ fputs(diffstat.dynstat.buf, options->file);
if (output_format & DIFF_FORMAT_SHORTSTAT)
show_shortstats(&diffstat, options);
if (output_format & DIFF_FORMAT_DIRSTAT)
show_dirstat_by_line(&diffstat, options);
- free_diffstat_info(&diffstat);
separator++;
}
+ free_diffstat_info(&diffstat);
if ((output_format & DIFF_FORMAT_DIRSTAT) && !dirstat_by_line)
show_dirstat(options, NULL);
diff --git a/diff.h b/diff.h
index ae71f4c..6bebad8 100644
--- a/diff.h
+++ b/diff.h
@@ -39,6 +39,7 @@ typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data)
#define DIFF_FORMAT_PATCH 0x0010
#define DIFF_FORMAT_SHORTSTAT 0x0020
#define DIFF_FORMAT_DIRSTAT 0x0040
+#define DIFF_FORMAT_DYNSTAT 0x0080
/* These override all above */
#define DIFF_FORMAT_NAME 0x0100
--
1.7.3.1.256.g2539c.dirty
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>