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#include "cache.h"
#include "builtin.h"
#include "parse-options.h"
#include "range-diff.h"
#include "config.h"
static const char * const builtin_range_diff_usage[] = {
N_("git range-diff [<options>] <old-base>..<old-tip> <new-base>..<new-tip>"),
N_("git range-diff [<options>] <old-tip>...<new-tip>"),
N_("git range-diff [<options>] <base> <old-tip> <new-tip>"),
NULL
};
static struct strbuf *output_prefix_cb(struct diff_options *opt, void *data)
{
return data;
}
int cmd_range_diff(int argc, const char **argv, const char *prefix)
{
int creation_factor = 60;
struct diff_options diffopt = { NULL };
int dual_color = 0;
struct option options[] = {
OPT_INTEGER(0, "creation-factor", &creation_factor,
N_("Percentage by which creation is weighted")),
OPT_BOOL(0, "dual-color", &dual_color,
N_("color both diff and diff-between-diffs")),
OPT_END()
};
int i, j, res = 0;
struct strbuf four_spaces = STRBUF_INIT;
struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;
git_config(git_diff_ui_config, NULL);
diff_setup(&diffopt);
diffopt.output_format = DIFF_FORMAT_PATCH;
diffopt.flags.suppress_diff_headers = 1;
diffopt.output_prefix = output_prefix_cb;
strbuf_addstr(&four_spaces, " ");
diffopt.output_prefix_data = &four_spaces;
argc = parse_options(argc, argv, NULL, options,
builtin_range_diff_usage, PARSE_OPT_KEEP_UNKNOWN |
PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
for (i = j = 1; i < argc && strcmp("--", argv[i]); ) {
int c = diff_opt_parse(&diffopt, argv + i, argc - i, prefix);
if (!c)
argv[j++] = argv[i++];
else
i += c;
}
while (i < argc)
argv[j++] = argv[i++];
argc = j;
diff_setup_done(&diffopt);
/* Make sure that there are no unparsed options */
argc = parse_options(argc, argv, NULL,
options + ARRAY_SIZE(options) - 1, /* OPT_END */
builtin_range_diff_usage, 0);
if (dual_color) {
diffopt.use_color = 1;
diffopt.flags.dual_color_diffed_diffs = 1;
}
if (argc == 2) {
if (!strstr(argv[0], ".."))
die(_("no .. in range: '%s'"), argv[0]);
strbuf_addstr(&range1, argv[0]);
if (!strstr(argv[1], ".."))
die(_("no .. in range: '%s'"), argv[1]);
strbuf_addstr(&range2, argv[1]);
} else if (argc == 3) {
strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
} else if (argc == 1) {
const char *b = strstr(argv[0], "..."), *a = argv[0];
int a_len;
if (!b) {
error(_("single arg format must be symmetric range"));
usage_with_options(builtin_range_diff_usage, options);
}
a_len = (int)(b - a);
if (!a_len) {
a = "HEAD";
a_len = strlen(a);
}
b += 3;
if (!*b)
b = "HEAD";
strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
} else {
error(_("need two commit ranges"));
usage_with_options(builtin_range_diff_usage, options);
}
res = show_range_diff(range1.buf, range2.buf, creation_factor,
&diffopt);
strbuf_release(&range1);
strbuf_release(&range2);
strbuf_release(&four_spaces);
return res;
}
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