return git_default_config(var, value);
}
+enum color_diff {
+ DIFF_RESET = 0,
+ DIFF_PLAIN = 1,
+ DIFF_METAINFO = 2,
+ DIFF_FRAGINFO = 3,
+ DIFF_FILE_OLD = 4,
+ DIFF_FILE_NEW = 5,
+};
+
+#define COLOR_NORMAL ""
+#define COLOR_BOLD "\033[1m"
+#define COLOR_DIM "\033[2m"
+#define COLOR_UL "\033[4m"
+#define COLOR_BLINK "\033[5m"
+#define COLOR_REVERSE "\033[7m"
+#define COLOR_RESET "\033[m"
+
+#define COLOR_BLACK "\033[30m"
+#define COLOR_RED "\033[31m"
+#define COLOR_GREEN "\033[32m"
+#define COLOR_YELLOW "\033[33m"
+#define COLOR_BLUE "\033[34m"
+#define COLOR_MAGENTA "\033[35m"
+#define COLOR_CYAN "\033[36m"
+#define COLOR_WHITE "\033[37m"
+
+#define COLOR_CYANBG "\033[46m"
+#define COLOR_GRAYBG "\033[47m" // Good for xterm
+
+static const char *diff_colors[] = {
+ [DIFF_RESET] = COLOR_RESET,
+ [DIFF_PLAIN] = COLOR_NORMAL,
+ [DIFF_METAINFO] = COLOR_BOLD,
+ [DIFF_FRAGINFO] = COLOR_CYAN,
+ [DIFF_FILE_OLD] = COLOR_RED,
+ [DIFF_FILE_NEW] = COLOR_GREEN,
+};
+
static char *quote_one(const char *str)
{
int needlen;
}
struct emit_callback {
+ struct xdiff_emit_state xm;
+ int nparents, color_diff;
const char **label_path;
};
-static int fn_out(void *priv, mmbuffer_t *mb, int nbuf)
+static inline const char *get_color(int diff_use_color, enum color_diff ix)
+{
+ if (diff_use_color)
+ return diff_colors[ix];
+ return "";
+}
+
+static void fn_out_consume(void *priv, char *line, unsigned long len)
{
int i;
struct emit_callback *ecbdata = priv;
+ const char *set = get_color(ecbdata->color_diff, DIFF_METAINFO);
+ const char *reset = get_color(ecbdata->color_diff, DIFF_RESET);
if (ecbdata->label_path[0]) {
- printf("--- %s\n", ecbdata->label_path[0]);
- printf("+++ %s\n", ecbdata->label_path[1]);
+ printf("%s--- %s%s\n", set, ecbdata->label_path[0], reset);
+ printf("%s+++ %s%s\n", set, ecbdata->label_path[1], reset);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
- for (i = 0; i < nbuf; i++)
- if (!fwrite(mb[i].ptr, mb[i].size, 1, stdout))
- return -1;
- return 0;
+
+ /* This is not really necessary for now because
+ * this codepath only deals with two-way diffs.
+ */
+ for (i = 0; i < len && line[i] == '@'; i++)
+ ;
+ if (2 <= i && i < len && line[i] == ' ') {
+ ecbdata->nparents = i - 1;
+ set = get_color(ecbdata->color_diff, DIFF_FRAGINFO);
+ }
+ else if (len < ecbdata->nparents)
+ set = reset;
+ else {
+ int nparents = ecbdata->nparents;
+ int color = DIFF_PLAIN;
+ for (i = 0; i < nparents && len; i++) {
+ if (line[i] == '-')
+ color = DIFF_FILE_OLD;
+ else if (line[i] == '+')
+ color = DIFF_FILE_NEW;
+ }
+ set = get_color(ecbdata->color_diff, color);
+ }
+ if (len > 0 && line[len-1] == '\n')
+ len--;
+ printf("%s%.*s%s\n", set, (int) len, line, reset);
}
static char *pprint_rename(const char *a, const char *b)
else
line[0] = bytes - 26 + 'a' - 1;
encode_85(line + 1, cp, bytes);
- cp += bytes;
+ cp = (char *) cp + bytes;
puts(line);
}
printf("\n");
mmfile_t mf1, mf2;
const char *lbl[2];
char *a_one, *b_two;
+ const char *set = get_color(o->color_diff, DIFF_METAINFO);
+ const char *reset = get_color(o->color_diff, DIFF_PLAIN);
a_one = quote_two("a/", name_a);
b_two = quote_two("b/", name_b);
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
- printf("diff --git %s %s\n", a_one, b_two);
+ printf("%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
if (lbl[0][0] == '/') {
/* /dev/null */
- printf("new file mode %06o\n", two->mode);
+ printf("%snew file mode %06o%s\n", set, two->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- puts(xfrm_msg);
+ printf("%s%s%s\n", set, xfrm_msg, reset);
}
else if (lbl[1][0] == '/') {
- printf("deleted file mode %06o\n", one->mode);
+ printf("%sdeleted file mode %06o%s\n", set, one->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- puts(xfrm_msg);
+ printf("%s%s%s\n", set, xfrm_msg, reset);
}
else {
if (one->mode != two->mode) {
- printf("old mode %06o\n", one->mode);
- printf("new mode %06o\n", two->mode);
+ printf("%sold mode %06o%s\n", set, one->mode, reset);
+ printf("%snew mode %06o%s\n", set, two->mode, reset);
}
if (xfrm_msg && xfrm_msg[0])
- puts(xfrm_msg);
+ printf("%s%s%s\n", set, xfrm_msg, reset);
/*
* we do not run diff between different kind
* of objects.
xdemitcb_t ecb;
struct emit_callback ecbdata;
+ memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.label_path = lbl;
+ ecbdata.color_diff = o->color_diff;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = o->context;
xecfg.flags = XDL_EMIT_FUNCNAMES;
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!strncmp(diffopts, "-u", 2))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- ecb.outf = fn_out;
+ ecb.outf = xdiff_outf;
ecb.priv = &ecbdata;
+ ecbdata.xm.consume = fn_out_consume;
xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
else if (40 < options->abbrev)
options->abbrev = 40;
}
+ else if (!strcmp(arg, "--color"))
+ options->color_diff = 1;
else
return 0;
return 1;
show_stats(diffstat);
free(diffstat);
diffstat = NULL;
+ if (options->summary)
+ for (i = 0; i < q->nr; i++)
+ diff_summary(q->queue[i]);
if (options->stat_sep)
fputs(options->stat_sep, stdout);
else
}
for (i = 0; i < q->nr; i++) {
- if (options->summary)
+ if (diffstat && options->summary)
diff_summary(q->queue[i]);
diff_free_filepair(q->queue[i]);
}