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index 287a927ce3131fd3a5c9151e5ea1e560842767a1..5dbc913a963eb3ed42d8b05aaf3c87d906931b04 100644 (file)
--- a/diff.c
+++ b/diff.c
static int diff_rename_limit_default = -1;
static int diff_use_color_default = 0;
-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"
-
-static const char *diff_colors[] = {
- COLOR_RESET,
- COLOR_NORMAL,
- COLOR_BOLD,
- COLOR_CYAN,
- COLOR_RED,
- COLOR_GREEN
+/* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
+static char diff_colors[][24] = {
+ "\033[m", /* reset */
+ "", /* normal */
+ "\033[1m", /* bold */
+ "\033[36m", /* cyan */
+ "\033[31m", /* red */
+ "\033[32m", /* green */
+ "\033[33m" /* yellow */
};
static int parse_diff_color_slot(const char *var, int ofs)
return DIFF_FILE_OLD;
if (!strcasecmp(var+ofs, "new"))
return DIFF_FILE_NEW;
+ if (!strcasecmp(var+ofs, "commit"))
+ return DIFF_COMMIT;
die("bad config variable '%s'", var);
}
-static const char *parse_diff_color_value(const char *value, const char *var)
-{
- if (!strcasecmp(value, "normal"))
- return COLOR_NORMAL;
- if (!strcasecmp(value, "bold"))
- return COLOR_BOLD;
- if (!strcasecmp(value, "dim"))
- return COLOR_DIM;
- if (!strcasecmp(value, "ul"))
- return COLOR_UL;
- if (!strcasecmp(value, "blink"))
- return COLOR_BLINK;
- if (!strcasecmp(value, "reverse"))
- return COLOR_REVERSE;
- if (!strcasecmp(value, "reset"))
- return COLOR_RESET;
- if (!strcasecmp(value, "black"))
- return COLOR_BLACK;
- if (!strcasecmp(value, "red"))
- return COLOR_RED;
- if (!strcasecmp(value, "green"))
- return COLOR_GREEN;
- if (!strcasecmp(value, "yellow"))
- return COLOR_YELLOW;
- if (!strcasecmp(value, "blue"))
- return COLOR_BLUE;
- if (!strcasecmp(value, "magenta"))
- return COLOR_MAGENTA;
- if (!strcasecmp(value, "cyan"))
- return COLOR_CYAN;
- if (!strcasecmp(value, "white"))
- return COLOR_WHITE;
+static int parse_color(const char *name, int len)
+{
+ static const char * const color_names[] = {
+ "normal", "black", "red", "green", "yellow",
+ "blue", "magenta", "cyan", "white"
+ };
+ char *end;
+ int i;
+ for (i = 0; i < ARRAY_SIZE(color_names); i++) {
+ const char *str = color_names[i];
+ if (!strncasecmp(name, str, len) && !str[len])
+ return i - 1;
+ }
+ i = strtol(name, &end, 10);
+ if (*name && !*end && i >= -1 && i <= 255)
+ return i;
+ return -2;
+}
+
+static int parse_attr(const char *name, int len)
+{
+ static const int attr_values[] = { 1, 2, 4, 5, 7 };
+ static const char * const attr_names[] = {
+ "bold", "dim", "ul", "blink", "reverse"
+ };
+ int i;
+ for (i = 0; i < ARRAY_SIZE(attr_names); i++) {
+ const char *str = attr_names[i];
+ if (!strncasecmp(name, str, len) && !str[len])
+ return attr_values[i];
+ }
+ return -1;
+}
+
+static void parse_diff_color_value(const char *value, const char *var, char *dst)
+{
+ const char *ptr = value;
+ int attr = -1;
+ int fg = -2;
+ int bg = -2;
+
+ if (!strcasecmp(value, "reset")) {
+ strcpy(dst, "\033[m");
+ return;
+ }
+
+ /* [fg [bg]] [attr] */
+ while (*ptr) {
+ const char *word = ptr;
+ int val, len = 0;
+
+ while (word[len] && !isspace(word[len]))
+ len++;
+
+ ptr = word + len;
+ while (*ptr && isspace(*ptr))
+ ptr++;
+
+ val = parse_color(word, len);
+ if (val >= -1) {
+ if (fg == -2) {
+ fg = val;
+ continue;
+ }
+ if (bg == -2) {
+ bg = val;
+ continue;
+ }
+ goto bad;
+ }
+ val = parse_attr(word, len);
+ if (val < 0 || attr != -1)
+ goto bad;
+ attr = val;
+ }
+
+ if (attr >= 0 || fg >= 0 || bg >= 0) {
+ int sep = 0;
+
+ *dst++ = '\033';
+ *dst++ = '[';
+ if (attr >= 0) {
+ *dst++ = '0' + attr;
+ sep++;
+ }
+ if (fg >= 0) {
+ if (sep++)
+ *dst++ = ';';
+ if (fg < 8) {
+ *dst++ = '3';
+ *dst++ = '0' + fg;
+ } else {
+ dst += sprintf(dst, "38;5;%d", fg);
+ }
+ }
+ if (bg >= 0) {
+ if (sep++)
+ *dst++ = ';';
+ if (bg < 8) {
+ *dst++ = '4';
+ *dst++ = '0' + bg;
+ } else {
+ dst += sprintf(dst, "48;5;%d", bg);
+ }
+ }
+ *dst++ = 'm';
+ }
+ *dst = 0;
+ return;
+bad:
die("bad config value '%s' for variable '%s'", value, var);
}
diff_use_color_default = 1; /* bool */
else if (!strcasecmp(value, "auto")) {
diff_use_color_default = 0;
- if (isatty(1) || pager_in_use) {
+ if (isatty(1) || (pager_in_use && pager_use_color)) {
char *term = getenv("TERM");
if (term && strcmp(term, "dumb"))
diff_use_color_default = 1;
}
if (!strncmp(var, "diff.color.", 11)) {
int slot = parse_diff_color_slot(var, 11);
- diff_colors[slot] = parse_diff_color_value(value, var);
+ parse_diff_color_value(value, var, diff_colors[slot]);
return 0;
}
return git_default_config(var, value);
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
- printf("--- %s\n+++ %s\n@@ -", name_a, name_b);
+ printf("--- a/%s\n+++ b/%s\n@@ -", name_a, name_b);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
const char **label_path;
};
-static inline const char *get_color(int diff_use_color, enum color_diff ix)
+const char *diff_get_color(int diff_use_color, enum color_diff ix)
{
if (diff_use_color)
return diff_colors[ix];
{
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);
+ const char *set = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
+ const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
if (ecbdata->label_path[0]) {
printf("%s--- %s%s\n", set, ecbdata->label_path[0], reset);
;
if (2 <= i && i < len && line[i] == ' ') {
ecbdata->nparents = i - 1;
- set = get_color(ecbdata->color_diff, DIFF_FRAGINFO);
+ set = diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO);
}
else if (len < ecbdata->nparents)
set = reset;
else if (line[i] == '+')
color = DIFF_FILE_NEW;
}
- set = get_color(ecbdata->color_diff, color);
+ set = diff_get_color(ecbdata->color_diff, color);
}
if (len > 0 && line[len-1] == '\n')
len--;
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_RESET);
+ const char *set = diff_get_color(o->color_diff, DIFF_METAINFO);
+ const char *reset = diff_get_color(o->color_diff, DIFF_RESET);
a_one = quote_two("a/", name_a);
b_two = quote_two("b/", name_b);
int diff_setup_done(struct diff_options *options)
{
- if ((options->find_copies_harder &&
- options->detect_rename != DIFF_DETECT_COPY) ||
- (0 <= options->rename_limit && !options->detect_rename))
- return -1;
+ if (options->find_copies_harder)
+ options->detect_rename = DIFF_DETECT_COPY;
if (options->output_format & (DIFF_FORMAT_NAME |
DIFF_FORMAT_NAME_STATUS |
struct diff_filespec *one,
struct diff_filespec *two)
{
- struct diff_filepair *dp = xmalloc(sizeof(*dp));
+ struct diff_filepair *dp = xcalloc(1, sizeof(*dp));
dp->one = one;
dp->two = two;
- dp->score = 0;
- dp->status = 0;
- dp->source_stays = 0;
- dp->broken_pair = 0;
if (queue)
diff_q(queue, dp);
return dp;