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index e03b16c0066181e3a07faaed9db582bc447c4633..3ad1f8c31046ee3dae8a8e9bed6dc9f5a5929b78 100644 (file)
--- a/diff.c
+++ b/diff.c
#include "utf8.h"
#include "userdiff.h"
#include "sigchain.h"
+#include "submodule.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
ecbdata->blank_at_eof_in_postimage = (at - l2) + 1;
}
-static void emit_line(FILE *file, const char *set, const char *reset, const char *line, int len)
+static void emit_line_0(FILE *file, const char *set, const char *reset,
+ int first, const char *line, int len)
{
int has_trailing_newline, has_trailing_carriage_return;
+ int nofirst;
- has_trailing_newline = (len > 0 && line[len-1] == '\n');
- if (has_trailing_newline)
- len--;
- has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
- if (has_trailing_carriage_return)
- len--;
+ if (len == 0) {
+ has_trailing_newline = (first == '\n');
+ has_trailing_carriage_return = (!has_trailing_newline &&
+ (first == '\r'));
+ nofirst = has_trailing_newline || has_trailing_carriage_return;
+ } else {
+ has_trailing_newline = (len > 0 && line[len-1] == '\n');
+ if (has_trailing_newline)
+ len--;
+ has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
+ if (has_trailing_carriage_return)
+ len--;
+ nofirst = 0;
+ }
fputs(set, file);
+
+ if (!nofirst)
+ fputc(first, file);
fwrite(line, len, 1, file);
fputs(reset, file);
if (has_trailing_carriage_return)
@@ -293,6 +307,12 @@ static void emit_line(FILE *file, const char *set, const char *reset, const char
fputc('\n', file);
}
+static void emit_line(FILE *file, const char *set, const char *reset,
+ const char *line, int len)
+{
+ emit_line_0(file, set, reset, line[0], line+1, len-1);
+}
+
static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line, int len)
{
if (!((ecbdata->ws_rule & WS_BLANK_AT_EOF) &&
@@ -301,23 +321,25 @@ static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line
ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage &&
ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage))
return 0;
- return ws_blank_line(line + 1, len - 1, ecbdata->ws_rule);
+ return ws_blank_line(line, len, ecbdata->ws_rule);
}
-static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len)
+static void emit_add_line(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len)
{
const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
if (!*ws)
- emit_line(ecbdata->file, set, reset, line, len);
+ emit_line_0(ecbdata->file, set, reset, '+', line, len);
else if (new_blank_line_at_eof(ecbdata, line, len))
/* Blank line at EOF - paint '+' as well */
- emit_line(ecbdata->file, ws, reset, line, len);
+ emit_line_0(ecbdata->file, ws, reset, '+', line, len);
else {
/* Emit just the prefix, then the rest. */
- emit_line(ecbdata->file, set, reset, line, 1);
- ws_check_emit(line + 1, len - 1, ecbdata->ws_rule,
+ emit_line_0(ecbdata->file, set, reset, '+', "", 0);
+ ws_check_emit(line, len, ecbdata->ws_rule,
ecbdata->file, set, reset, ws);
}
}
}
}
-static void copy_file_with_prefix(FILE *file,
- int prefix, const char *data, int size,
- const char *set, const char *reset)
+static void emit_rewrite_lines(struct emit_callback *ecb,
+ int prefix, const char *data, int size)
{
- int ch, nl_just_seen = 1;
- while (0 < size--) {
- ch = *data++;
- if (nl_just_seen) {
- fputs(set, file);
- putc(prefix, file);
+ const char *endp = NULL;
+ static const char *nneof = " No newline at end of file\n";
+ const char *old = diff_get_color(ecb->color_diff, DIFF_FILE_OLD);
+ const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET);
+
+ while (0 < size) {
+ int len;
+
+ endp = memchr(data, '\n', size);
+ len = endp ? (endp - data + 1) : size;
+ if (prefix != '+') {
+ ecb->lno_in_preimage++;
+ emit_line_0(ecb->file, old, reset, '-',
+ data, len);
+ } else {
+ ecb->lno_in_postimage++;
+ emit_add_line(reset, ecb, data, len);
}
- if (ch == '\n') {
- nl_just_seen = 1;
- fputs(reset, file);
- } else
- nl_just_seen = 0;
- putc(ch, file);
+ size -= len;
+ data += len;
+ }
+ if (!endp) {
+ const char *plain = diff_get_color(ecb->color_diff,
+ DIFF_PLAIN);
+ emit_line_0(ecb->file, plain, reset, '\\',
+ nneof, strlen(nneof));
}
- if (!nl_just_seen)
- fprintf(file, "%s\n\\ No newline at end of file\n", reset);
}
static void emit_rewrite_diff(const char *name_a,
const char *name_a_tab, *name_b_tab;
const char *metainfo = diff_get_color(color_diff, DIFF_METAINFO);
const char *fraginfo = diff_get_color(color_diff, DIFF_FRAGINFO);
- const char *old = diff_get_color(color_diff, DIFF_FILE_OLD);
- const char *new = diff_get_color(color_diff, DIFF_FILE_NEW);
const char *reset = diff_get_color(color_diff, DIFF_RESET);
static struct strbuf a_name = STRBUF_INIT, b_name = STRBUF_INIT;
const char *a_prefix, *b_prefix;
const char *data_one, *data_two;
size_t size_one, size_two;
+ struct emit_callback ecbdata;
if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) {
a_prefix = o->b_prefix;
size_two = two->size;
}
+ memset(&ecbdata, 0, sizeof(ecbdata));
+ ecbdata.color_diff = color_diff;
+ ecbdata.found_changesp = &o->found_changes;
+ ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
+ ecbdata.file = o->file;
+ if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
+ mmfile_t mf1, mf2;
+ mf1.ptr = (char *)data_one;
+ mf2.ptr = (char *)data_two;
+ mf1.size = size_one;
+ mf2.size = size_two;
+ check_blank_at_eof(&mf1, &mf2, &ecbdata);
+ }
+ ecbdata.lno_in_preimage = 1;
+ ecbdata.lno_in_postimage = 1;
+
lc_a = count_lines(data_one, size_one);
lc_b = count_lines(data_two, size_two);
fprintf(o->file,
print_line_count(o->file, lc_b);
fprintf(o->file, " @@%s\n", reset);
if (lc_a)
- copy_file_with_prefix(o->file, '-', data_one, size_one, old, reset);
+ emit_rewrite_lines(&ecbdata, '-', data_one, size_one);
if (lc_b)
- copy_file_with_prefix(o->file, '+', data_two, size_two, new, reset);
+ emit_rewrite_lines(&ecbdata, '+', data_two, size_two);
}
struct diff_words_buffer {
emit_line(ecbdata->file, color, reset, line, len);
} else {
ecbdata->lno_in_postimage++;
- emit_add_line(reset, ecbdata, line, len);
+ emit_add_line(reset, ecbdata, line + 1, len - 1);
}
}
total_files, adds, dels);
}
-static void show_shortstats(struct diffstat_t* data, struct diff_options *options)
+static void show_shortstats(struct diffstat_t *data, struct diff_options *options)
{
int i, adds = 0, dels = 0, total_files = data->nr;
const char *a_prefix, *b_prefix;
const char *textconv_one = NULL, *textconv_two = NULL;
+ if (DIFF_OPT_TST(o, SUBMODULE_LOG) &&
+ (!one->mode || S_ISGITLINK(one->mode)) &&
+ (!two->mode || S_ISGITLINK(two->mode))) {
+ const char *del = diff_get_color_opt(o, DIFF_FILE_OLD);
+ const char *add = diff_get_color_opt(o, DIFF_FILE_NEW);
+ show_submodule_summary(o->file, one ? one->path : two->path,
+ one->sha1, two->sha1,
+ del, add, reset);
+ return;
+ }
+
if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
textconv_one = get_textconv(one);
textconv_two = get_textconv(two);
DIFF_OPT_CLR(options, ALLOW_TEXTCONV);
else if (!strcmp(arg, "--ignore-submodules"))
DIFF_OPT_SET(options, IGNORE_SUBMODULES);
+ else if (!strcmp(arg, "--submodule"))
+ DIFF_OPT_SET(options, SUBMODULE_LOG);
+ else if (!prefixcmp(arg, "--submodule=")) {
+ if (!strcmp(arg + 12, "log"))
+ DIFF_OPT_SET(options, SUBMODULE_LOG);
+ }
/* misc options */
else if (!strcmp(arg, "-z"))
num = 0;
scale = 1;
dot = 0;
- for(;;) {
+ for (;;) {
ch = *cp;
if ( !dot && ch == '.' ) {
scale = 1;