static int use_size_cache;
-int diff_rename_limit_default = -1;
-
-int git_diff_config(const char *var, const char *value)
-{
- if (!strcmp(var, "diff.renamelimit")) {
- diff_rename_limit_default = git_config_int(var, value);
- return 0;
- }
-
- return git_default_config(var, value);
-}
+static int diff_rename_limit_default = -1;
+static int diff_use_color_default = 0;
enum color_diff {
DIFF_RESET = 0,
#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_FILE_NEW] = COLOR_GREEN,
};
+static int parse_diff_color_slot(const char *var, int ofs)
+{
+ if (!strcasecmp(var+ofs, "plain"))
+ return DIFF_PLAIN;
+ if (!strcasecmp(var+ofs, "meta"))
+ return DIFF_METAINFO;
+ if (!strcasecmp(var+ofs, "frag"))
+ return DIFF_FRAGINFO;
+ if (!strcasecmp(var+ofs, "old"))
+ return DIFF_FILE_OLD;
+ if (!strcasecmp(var+ofs, "new"))
+ return DIFF_FILE_NEW;
+ 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;
+ die("bad config value '%s' for variable '%s'", value, var);
+}
+
+int git_diff_config(const char *var, const char *value)
+{
+ if (!strcmp(var, "diff.renamelimit")) {
+ diff_rename_limit_default = git_config_int(var, value);
+ return 0;
+ }
+ if (!strcmp(var, "diff.color")) {
+ if (!value)
+ diff_use_color_default = 1; /* bool */
+ else if (!strcasecmp(value, "auto"))
+ diff_use_color_default = isatty(1);
+ else if (!strcasecmp(value, "never"))
+ diff_use_color_default = 0;
+ else if (!strcasecmp(value, "always"))
+ diff_use_color_default = 1;
+ else
+ diff_use_color_default = git_config_bool(var, value);
+ return 0;
+ }
+ if (!strncmp(var, "diff.color.", 11)) {
+ int slot = parse_diff_color_slot(var, 11);
+ diff_colors[slot] = parse_diff_color_value(value, var);
+ return 0;
+ }
+ return git_default_config(var, value);
+}
+
static char *quote_one(const char *str)
{
int needlen;
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one)) {
- mf->ptr = ""; /* does not matter */
+ mf->ptr = (char *)""; /* does not matter */
mf->size = 0;
return 0;
}
}
for (i = 0; i < data->nr; i++) {
- char *prefix = "";
+ const char *prefix = "";
char *name = data->files[i]->name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
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);
+ const char *reset = get_color(o->color_diff, DIFF_RESET);
a_one = quote_two("a/", name_a);
b_two = quote_two("b/", name_b);
err_empty:
err = -1;
empty:
- s->data = "";
+ s->data = (char *)"";
s->size = 0;
return err;
}
options->change = diff_change;
options->add_remove = diff_addremove;
+ options->color_diff = diff_use_color_default;
}
int diff_setup_done(struct diff_options *options)
return 0;
}
-int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val)
+static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val)
{
char c, *eq;
int len;
free((void*)path_two);
}
-static void diff_flush_name(struct diff_filepair *p,
- int inter_name_termination,
- int line_termination)
+static void diff_flush_name(struct diff_filepair *p, int line_termination)
{
char *path = p->two->path;
if (line_termination)
path = quote_one(p->two->path);
- else
- path = p->two->path;
printf("%s%c", path, line_termination);
if (p->two->path != path)
free(path);
options, diff_output_format);
break;
case DIFF_FORMAT_NAME:
- diff_flush_name(p,
- inter_name_termination,
- line_termination);
+ diff_flush_name(p, line_termination);
break;
case DIFF_FORMAT_NO_OUTPUT:
break;
}
}
+struct patch_id_t {
+ struct xdiff_emit_state xm;
+ SHA_CTX *ctx;
+ int patchlen;
+};
+
+static int remove_space(char *line, int len)
+{
+ int i;
+ char *dst = line;
+ unsigned char c;
+
+ for (i = 0; i < len; i++)
+ if (!isspace((c = line[i])))
+ *dst++ = c;
+
+ return dst - line;
+}
+
+static void patch_id_consume(void *priv, char *line, unsigned long len)
+{
+ struct patch_id_t *data = priv;
+ int new_len;
+
+ /* Ignore line numbers when computing the SHA1 of the patch */
+ if (!strncmp(line, "@@ -", 4))
+ return;
+
+ new_len = remove_space(line, len);
+
+ SHA1_Update(data->ctx, line, new_len);
+ data->patchlen += new_len;
+}
+
+/* returns 0 upon success, and writes result into sha1 */
+static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
+{
+ struct diff_queue_struct *q = &diff_queued_diff;
+ int i;
+ SHA_CTX ctx;
+ struct patch_id_t data;
+ char buffer[PATH_MAX * 4 + 20];
+
+ SHA1_Init(&ctx);
+ memset(&data, 0, sizeof(struct patch_id_t));
+ data.ctx = &ctx;
+ data.xm.consume = patch_id_consume;
+
+ for (i = 0; i < q->nr; i++) {
+ xpparam_t xpp;
+ xdemitconf_t xecfg;
+ xdemitcb_t ecb;
+ mmfile_t mf1, mf2;
+ struct diff_filepair *p = q->queue[i];
+ int len1, len2;
+
+ if (p->status == 0)
+ return error("internal diff status error");
+ if (p->status == DIFF_STATUS_UNKNOWN)
+ continue;
+ if (diff_unmodified_pair(p))
+ continue;
+ if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
+ (DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
+ continue;
+ if (DIFF_PAIR_UNMERGED(p))
+ continue;
+
+ diff_fill_sha1_info(p->one);
+ diff_fill_sha1_info(p->two);
+ if (fill_mmfile(&mf1, p->one) < 0 ||
+ fill_mmfile(&mf2, p->two) < 0)
+ return error("unable to read files to diff");
+
+ /* Maybe hash p->two? into the patch id? */
+ if (mmfile_is_binary(&mf2))
+ continue;
+
+ len1 = remove_space(p->one->path, strlen(p->one->path));
+ len2 = remove_space(p->two->path, strlen(p->two->path));
+ if (p->one->mode == 0)
+ len1 = snprintf(buffer, sizeof(buffer),
+ "diff--gita/%.*sb/%.*s"
+ "newfilemode%06o"
+ "---/dev/null"
+ "+++b/%.*s",
+ len1, p->one->path,
+ len2, p->two->path,
+ p->two->mode,
+ len2, p->two->path);
+ else if (p->two->mode == 0)
+ len1 = snprintf(buffer, sizeof(buffer),
+ "diff--gita/%.*sb/%.*s"
+ "deletedfilemode%06o"
+ "---a/%.*s"
+ "+++/dev/null",
+ len1, p->one->path,
+ len2, p->two->path,
+ p->one->mode,
+ len1, p->one->path);
+ else
+ len1 = snprintf(buffer, sizeof(buffer),
+ "diff--gita/%.*sb/%.*s"
+ "---a/%.*s"
+ "+++b/%.*s",
+ len1, p->one->path,
+ len2, p->two->path,
+ len1, p->one->path,
+ len2, p->two->path);
+ SHA1_Update(&ctx, buffer, len1);
+
+ xpp.flags = XDF_NEED_MINIMAL;
+ xecfg.ctxlen = 3;
+ xecfg.flags = XDL_EMIT_FUNCNAMES;
+ ecb.outf = xdiff_outf;
+ ecb.priv = &data;
+ xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ }
+
+ SHA1_Final(sha1, &ctx);
+ return 0;
+}
+
+int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1)
+{
+ struct diff_queue_struct *q = &diff_queued_diff;
+ int i;
+ int result = diff_get_patch_id(options, sha1);
+
+ for (i = 0; i < q->nr; i++)
+ diff_free_filepair(q->queue[i]);
+
+ free(q->queue);
+ q->queue = NULL;
+ q->nr = q->alloc = 0;
+
+ return result;
+}
+
void diff_flush(struct diff_options *options)
{
struct diff_queue_struct *q = &diff_queued_diff;