[PATCH 3/6 rebase-version] diff.c: Output the text graph padding before each diff line.
Show changes to diff.c +148 −53
diff --git a/diff.c b/diff.c
index e2f910a..b99a56c 100644
--- a/diff.c
+++ b/diff.c
@@ -490,6 +490,13 @@ static void emit_rewrite_diff(const char *name_a,
char *data_one, *data_two;
size_t size_one, size_two;
struct emit_callback ecbdata;
+ char *line_prefix = "";
+ struct strbuf *msgbuf;
+
+ if (o && o->output_prefix) {
+ msgbuf = o->output_prefix(o, o->output_prefix_data);
+ line_prefix = msgbuf->buf;
+ }
if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) {
a_prefix = o->b_prefix;
@@ -531,9 +538,10 @@ static void emit_rewrite_diff(const char *name_a,
lc_a = count_lines(data_one, size_one);
lc_b = count_lines(data_two, size_two);
fprintf(o->file,
- "%s--- %s%s%s\n%s+++ %s%s%s\n%s@@ -",
- metainfo, a_name.buf, name_a_tab, reset,
- metainfo, b_name.buf, name_b_tab, reset, fraginfo);
+ "%s%s--- %s%s%s\n%s%s+++ %s%s%s\n%s%s@@ -",
+ line_prefix, metainfo, a_name.buf, name_a_tab, reset,
+ line_prefix, metainfo, b_name.buf, name_b_tab, reset,
+ line_prefix, fraginfo);
print_line_count(o->file, lc_a);
fprintf(o->file, " +");
print_line_count(o->file, lc_b);
@@ -846,6 +854,14 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
const char *meta = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
+ struct diff_options *o = ecbdata->opt;
+ char *line_prefix = "";
+ struct strbuf *msgbuf;
+
+ if (o && o->output_prefix) {
+ msgbuf = o->output_prefix(o, o->output_prefix_data);
+ line_prefix = msgbuf->buf;
+ }
if (ecbdata->header) {
fprintf(ecbdata->opt->file, "%s", ecbdata->header->buf);
@@ -860,10 +876,10 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : "";
name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : "";
- fprintf(ecbdata->opt->file, "%s--- %s%s%s\n",
- meta, ecbdata->label_path[0], reset, name_a_tab);
- fprintf(ecbdata->opt->file, "%s+++ %s%s%s\n",
- meta, ecbdata->label_path[1], reset, name_b_tab);
+ fprintf(ecbdata->opt->file, "%s%s--- %s%s%s\n",
+ line_prefix, meta, ecbdata->label_path[0], reset, name_a_tab);
+ fprintf(ecbdata->opt->file, "%s%s+++ %s%s%s\n",
+ line_prefix, meta, ecbdata->label_path[1], reset, name_b_tab);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
@@ -1100,10 +1116,17 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
int total_files = data->nr;
int width, name_width;
const char *reset, *set, *add_c, *del_c;
+ const char *line_prefix = "";
+ struct strbuf *msg = NULL;
if (data->nr == 0)
return;
+ if (options->output_prefix) {
+ msg = options->output_prefix(options, options->output_prefix_data);
+ line_prefix = msg->buf;
+ }
+
width = options->stat_width ? options->stat_width : 80;
name_width = options->stat_name_width ? options->stat_name_width : 50;
@@ -1173,6 +1196,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
}
if (data->files[i]->is_binary) {
+ fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
fprintf(options->file, " Bin ");
fprintf(options->file, "%s%"PRIuMAX"%s",
@@ -1185,6 +1209,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
continue;
}
else if (data->files[i]->is_unmerged) {
+ fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
fprintf(options->file, " Unmerged\n");
continue;
@@ -1207,6 +1232,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
add = scale_linear(add, width, max_change);
del = scale_linear(del, width, max_change);
}
+ fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
fprintf(options->file, "%5"PRIuMAX"%s", added + deleted,
added + deleted ? " " : "");
@@ -1214,6 +1240,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
show_graph(options->file, '-', del, del_c, reset);
fprintf(options->file, "\n");
}
+ fprintf(options->file, "%s", line_prefix);
fprintf(options->file,
" %d files changed, %d insertions(+), %d deletions(-)\n",
total_files, adds, dels);
@@ -1240,6 +1267,12 @@ static void show_shortstats(struct diffstat_t *data, struct diff_options *option
}
}
}
+ if (options->output_prefix) {
+ struct strbuf *msg = NULL;
+ msg = options->output_prefix(options,
+ options->output_prefix_data);
+ fprintf(options->file, "%s", msg->buf);
+ }
fprintf(options->file, " %d files changed, %d insertions(+), %d deletions(-)\n",
total_files, adds, dels);
}
@@ -1254,6 +1287,13 @@ static void show_numstat(struct diffstat_t *data, struct diff_options *options)
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
+ if (options->output_prefix) {
+ struct strbuf *msg = NULL;
+ msg = options->output_prefix(options,
+ options->output_prefix_data);
+ fprintf(options->file, "%s", msg->buf);
+ }
+
if (file->is_binary)
fprintf(options->file, "-\t-\t");
else
@@ -1289,10 +1329,20 @@ struct dirstat_dir {
int alloc, nr, percent, cumulative;
};
-static long gather_dirstat(FILE *file, struct dirstat_dir *dir, unsigned long changed, const char *base, int baselen)
+static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
+ unsigned long changed, const char *base, int baselen)
{
unsigned long this_dir = 0;
unsigned int sources = 0;
+ assert(opt);
+ FILE *file = opt->file;
+ const char *line_prefix = "";
+ struct strbuf *msg = NULL;
+
+ if (opt->output_prefix) {
+ msg = opt->output_prefix(opt, opt->output_prefix_data);
+ line_prefix = msg->buf;
+ }
while (dir->nr) {
struct dirstat_file *f = dir->files;
@@ -1307,7 +1357,7 @@ static long gather_dirstat(FILE *file, struct dirstat_dir *dir, unsigned long ch
slash = strchr(f->name + baselen, '/');
if (slash) {
int newbaselen = slash + 1 - f->name;
- this = gather_dirstat(file, dir, changed, f->name, newbaselen);
+ this = gather_dirstat(opt, dir, changed, f->name, newbaselen);
sources++;
} else {
this = f->changed;
@@ -1329,7 +1379,7 @@ static long gather_dirstat(FILE *file, struct dirstat_dir *dir, unsigned long ch
if (permille) {
int percent = permille / 10;
if (percent >= dir->percent) {
- fprintf(file, "%4d.%01d%% %.*s\n", percent, permille % 10, baselen, base);
+ fprintf(file, "%s%4d.%01d%% %.*s\n", line_prefix, percent, permille % 10, baselen, base);
if (!dir->cumulative)
return 0;
}
@@ -1409,7 +1459,7 @@ static void show_dirstat(struct diff_options *options)
/* Show all directories with more than x% of the changes */
qsort(dir.files, dir.nr, sizeof(dir.files[0]), dirstat_compare);
- gather_dirstat(options->file, &dir, changed, "", 0);
+ gather_dirstat(options, &dir, changed, "", 0);
}
static void free_diffstat_info(struct diffstat_t *diffstat)
@@ -1467,6 +1517,15 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
const char *reset = diff_get_color(color_diff, DIFF_RESET);
const char *set = diff_get_color(color_diff, DIFF_FILE_NEW);
char *err;
+ char *line_prefix = "";
+ struct strbuf *msgbuf;
+
+ assert(data->o);
+ if (data->o->output_prefix) {
+ msgbuf = data->o->output_prefix(data->o,
+ data->o->output_prefix_data);
+ line_prefix = msgbuf->buf;
+ }
if (line[0] == '+') {
unsigned bad;
@@ -1474,16 +1533,16 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
if (is_conflict_marker(line + 1, marker_size, len - 1)) {
data->status |= 1;
fprintf(data->o->file,
- "%s:%d: leftover conflict marker\n",
- data->filename, data->lineno);
+ "%s%s:%d: leftover conflict marker\n",
+ line_prefix, data->filename, data->lineno);
}
bad = ws_check(line + 1, len - 1, data->ws_rule);
if (!bad)
return;
data->status |= bad;
err = whitespace_error_string(bad);
- fprintf(data->o->file, "%s:%d: %s.\n",
- data->filename, data->lineno, err);
+ fprintf(data->o->file, "%s%s:%d: %s.\n",
+ line_prefix, data->filename, data->lineno, err);
free(err);
emit_line(data->o, set, reset, line, 1);
ws_check_emit(line + 1, len - 1, data->ws_rule,
@@ -1523,7 +1582,7 @@ static unsigned char *deflate_it(char *data,
return deflated;
}
-static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two)
+static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two, char *prefix)
{
void *cp;
void *delta;
@@ -1552,13 +1611,13 @@ static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two)
}
if (delta && delta_size < deflate_size) {
- fprintf(file, "delta %lu\n", orig_size);
+ fprintf(file, "%sdelta %lu\n", prefix, orig_size);
free(deflated);
data = delta;
data_size = delta_size;
}
else {
- fprintf(file, "literal %lu\n", two->size);
+ fprintf(file, "%sliteral %lu\n", prefix, two->size);
free(delta);
data = deflated;
data_size = deflate_size;
@@ -1576,18 +1635,19 @@ static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two)
line[0] = bytes - 26 + 'a' - 1;
encode_85(line + 1, cp, bytes);
cp = (char *) cp + bytes;
+ fprintf(file, "%s", prefix);
fputs(line, file);
fputc('\n', file);
}
- fprintf(file, "\n");
+ fprintf(file, "%s\n", prefix);
free(data);
}
-static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two)
+static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two, char *prefix)
{
- fprintf(file, "GIT binary patch\n");
- emit_binary_diff_body(file, one, two);
- emit_binary_diff_body(file, two, one);
+ fprintf(file, "%sGIT binary patch\n", prefix);
+ emit_binary_diff_body(file, one, two, prefix);
+ emit_binary_diff_body(file, two, one, prefix);
}
static void diff_filespec_load_driver(struct diff_filespec *one)
@@ -1676,6 +1736,13 @@ static void builtin_diff(const char *name_a,
struct userdiff_driver *textconv_one = NULL;
struct userdiff_driver *textconv_two = NULL;
struct strbuf header = STRBUF_INIT;
+ struct strbuf *msgbuf;
+ char *line_prefix = "";
+
+ if (o->output_prefix) {
+ msgbuf = o->output_prefix(o, o->output_prefix_data);
+ line_prefix = msgbuf->buf;
+ }
if (DIFF_OPT_TST(o, SUBMODULE_LOG) &&
(!one->mode || S_ISGITLINK(one->mode)) &&
@@ -1710,22 +1777,22 @@ static void builtin_diff(const char *name_a,
b_two = quote_two(b_prefix, name_b + (*name_b == '/'));
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
- strbuf_addf(&header, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
+ strbuf_addf(&header, "%s%sdiff --git %s %s%s\n", line_prefix, set, a_one, b_two, reset);
if (lbl[0][0] == '/') {
/* /dev/null */
- strbuf_addf(&header, "%snew file mode %06o%s\n", set, two->mode, reset);
+ strbuf_addf(&header, "%s%snew file mode %06o%s\n", line_prefix, set, two->mode, reset);
if (xfrm_msg && xfrm_msg[0])
strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
}
else if (lbl[1][0] == '/') {
- strbuf_addf(&header, "%sdeleted file mode %06o%s\n", set, one->mode, reset);
+ strbuf_addf(&header, "%s%sdeleted file mode %06o%s\n", line_prefix, set, one->mode, reset);
if (xfrm_msg && xfrm_msg[0])
strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
}
else {
if (one->mode != two->mode) {
- strbuf_addf(&header, "%sold mode %06o%s\n", set, one->mode, reset);
- strbuf_addf(&header, "%snew mode %06o%s\n", set, two->mode, reset);
+ strbuf_addf(&header, "%s%sold mode %06o%s\n", line_prefix, set, one->mode, reset);
+ strbuf_addf(&header, "%s%snew mode %06o%s\n", line_prefix, set, two->mode, reset);
}
if (xfrm_msg && xfrm_msg[0])
strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
@@ -1760,10 +1827,10 @@ static void builtin_diff(const char *name_a,
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
if (DIFF_OPT_TST(o, BINARY))
- emit_binary_diff(o->file, &mf1, &mf2);
+ emit_binary_diff(o->file, &mf1, &mf2, line_prefix);
else
- fprintf(o->file, "Binary files %s and %s differ\n",
- lbl[0], lbl[1]);
+ fprintf(o->file, "%sBinary files %s and %s differ\n",
+ line_prefix, lbl[0], lbl[1]);
o->found_changes = 1;
}
else {
@@ -2389,28 +2456,36 @@ static void fill_metainfo(struct strbuf *msg,
struct diff_options *o,
struct diff_filepair *p)
{
+ struct strbuf *msgbuf;
+ char *line_prefix = "";
+
+ if (o->output_prefix) {
+ msgbuf = o->output_prefix(o, o->output_prefix_data);
+ line_prefix = msgbuf->buf;
+ }
+
strbuf_init(msg, PATH_MAX * 2 + 300);
switch (p->status) {
case DIFF_STATUS_COPIED:
- strbuf_addf(msg, "similarity index %d%%", similarity_index(p));
- strbuf_addstr(msg, "\ncopy from ");
+ strbuf_addf(msg, "%ssimilarity index %d%%", line_prefix, similarity_index(p));
+ strbuf_addf(msg, "\n%scopy from ", line_prefix);
quote_c_style(name, msg, NULL, 0);
- strbuf_addstr(msg, "\ncopy to ");
+ strbuf_addf(msg, "\n%scopy to ", line_prefix);
quote_c_style(other, msg, NULL, 0);
strbuf_addch(msg, '\n');
break;
case DIFF_STATUS_RENAMED:
- strbuf_addf(msg, "similarity index %d%%", similarity_index(p));
- strbuf_addstr(msg, "\nrename from ");
+ strbuf_addf(msg, "%ssimilarity index %d%%", line_prefix, similarity_index(p));
+ strbuf_addf(msg, "\n%srename from ", line_prefix);
quote_c_style(name, msg, NULL, 0);
- strbuf_addstr(msg, "\nrename to ");
+ strbuf_addf(msg, "\n%srename to ", line_prefix);
quote_c_style(other, msg, NULL, 0);
strbuf_addch(msg, '\n');
break;
case DIFF_STATUS_MODIFIED:
if (p->score) {
- strbuf_addf(msg, "dissimilarity index %d%%\n",
- similarity_index(p));
+ strbuf_addf(msg, "%sdissimilarity index %d%%\n",
+ line_prefix, similarity_index(p));
break;
}
/* fallthru */
@@ -2427,8 +2502,8 @@ static void fill_metainfo(struct strbuf *msg,
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
abbrev = 40;
}
- strbuf_addf(msg, "index %.*s..%.*s",
- abbrev, sha1_to_hex(one->sha1),
+ strbuf_addf(msg, "%sindex %.*s..%.*s",
+ line_prefix, abbrev, sha1_to_hex(one->sha1),
abbrev, sha1_to_hex(two->sha1));
if (one->mode == two->mode)
strbuf_addf(msg, " %06o", one->mode);
@@ -3132,6 +3207,11 @@ static void diff_flush_raw(struct diff_filepair *p, struct diff_options *opt)
{
int line_termination = opt->line_termination;
int inter_name_termination = line_termination ? '\t' : '\0';
+ if (opt->output_prefix) {
+ struct strbuf *msg = NULL;
+ msg = opt->output_prefix(opt, opt->output_prefix_data);
+ fprintf(opt->file, "%s", msg->buf);
+ }
if (!(opt->output_format & DIFF_FORMAT_NAME_STATUS)) {
fprintf(opt->file, ":%06o %06o %s ", p->one->mode, p->two->mode,
@@ -3377,48 +3457,62 @@ static void show_file_mode_name(FILE *file, const char *newdelete, struct diff_f
}
-static void show_mode_change(FILE *file, struct diff_filepair *p, int show_name)
+static void show_mode_change(FILE *file, struct diff_filepair *p, int show_name,
+ const char *line_prefix)
{
if (p->one->mode && p->two->mode && p->one->mode != p->two->mode) {
- fprintf(file, " mode change %06o => %06o%c", p->one->mode, p->two->mode,
- show_name ? ' ' : '\n');
+ fprintf(file, "%s mode change %06o => %06o%c", line_prefix, p->one->mode,
+ p->two->mode, show_name ? ' ' : '\n');
if (show_name) {
write_name_quoted(p->two->path, file, '\n');
}
}
}
-static void show_rename_copy(FILE *file, const char *renamecopy, struct diff_filepair *p)
+static void show_rename_copy(FILE *file, const char *renamecopy, struct diff_filepair *p,
+ const char *line_prefix)
{
char *names = pprint_rename(p->one->path, p->two->path);
fprintf(file, " %s %s (%d%%)\n", renamecopy, names, similarity_index(p));
free(names);
- show_mode_change(file, p, 0);
+ show_mode_change(file, p, 0, line_prefix);
}
-static void diff_summary(FILE *file, struct diff_filepair *p)
+static void diff_summary(struct diff_options *opt, struct diff_filepair *p)
{
+ FILE *file = opt->file;
+ char *line_prefix = "";
+
+ if (opt->output_prefix) {
+ struct strbuf *buf = opt->output_prefix(opt, opt->output_prefix_data);
+ line_prefix = buf->buf;
+ }
+
switch(p->status) {
case DIFF_STATUS_DELETED:
+ fputs(line_prefix, file);
show_file_mode_name(file, "delete", p->one);
break;
case DIFF_STATUS_ADDED:
+ fputs(line_prefix, file);
show_file_mode_name(file, "create", p->two);
break;
case DIFF_STATUS_COPIED:
- show_rename_copy(file, "copy", p);
+ fputs(line_prefix, file);
+ show_rename_copy(file, "copy", p, line_prefix);
break;
case DIFF_STATUS_RENAMED:
- show_rename_copy(file, "rename", p);
+ fputs(line_prefix, file);
+ show_rename_copy(file, "rename", p, line_prefix);
break;
default:
if (p->score) {
- fputs(" rewrite ", file);
+ fprintf(file, "%s rewrite ", line_prefix);
write_name_quoted(p->two->path, file, ' ');
fprintf(file, "(%d%%)\n", similarity_index(p));
}
- show_mode_change(file, p, !p->score);
+ show_mode_change(file, p, !p->score, line_prefix);
break;
}
}
@@ -3627,8 +3721,9 @@ void diff_flush(struct diff_options *options)
show_dirstat(options);
if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) {
- for (i = 0; i < q->nr; i++)
- diff_summary(options->file, q->queue[i]);
+ for (i = 0; i < q->nr; i++) {
+ diff_summary(options, q->queue[i]);
+ }
separator++;
}
Bo Yang
