1 #include "cache.h"
2 #include "builtin.h"
3 #include "parse-options.h"
4 #include "range-diff.h"
5 #include "config.h"
6
7 static const char * const builtin_range_diff_usage[] = {
8 N_("git range-diff [<options>] <old-base>..<old-tip> <new-base>..<new-tip>"),
9 N_("git range-diff [<options>] <old-tip>...<new-tip>"),
10 N_("git range-diff [<options>] <base> <old-tip> <new-tip>"),
11 NULL
12 };
13
cmd_range_diff(int argc,const char ** argv,const char * prefix)14 int cmd_range_diff(int argc, const char **argv, const char *prefix)
15 {
16 int creation_factor = RANGE_DIFF_CREATION_FACTOR_DEFAULT;
17 struct diff_options diffopt = { NULL };
18 struct argv_array other_arg = ARGV_ARRAY_INIT;
19 int simple_color = -1;
20 struct option range_diff_options[] = {
21 OPT_INTEGER(0, "creation-factor", &creation_factor,
22 N_("Percentage by which creation is weighted")),
23 OPT_BOOL(0, "no-dual-color", &simple_color,
24 N_("use simple diff colors")),
25 OPT_PASSTHRU_ARGV(0, "notes", &other_arg,
26 N_("notes"), N_("passed to 'git log'"),
27 PARSE_OPT_OPTARG),
28 OPT_END()
29 };
30 struct option *options;
31 int res = 0;
32 struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;
33
34 git_config(git_diff_ui_config, NULL);
35
36 repo_diff_setup(the_repository, &diffopt);
37
38 options = parse_options_concat(range_diff_options, diffopt.parseopts);
39 argc = parse_options(argc, argv, prefix, options,
40 builtin_range_diff_usage, 0);
41
42 diff_setup_done(&diffopt);
43
44 /* force color when --dual-color was used */
45 if (!simple_color)
46 diffopt.use_color = 1;
47
48 if (argc == 2) {
49 if (!strstr(argv[0], ".."))
50 die(_("no .. in range: '%s'"), argv[0]);
51 strbuf_addstr(&range1, argv[0]);
52
53 if (!strstr(argv[1], ".."))
54 die(_("no .. in range: '%s'"), argv[1]);
55 strbuf_addstr(&range2, argv[1]);
56 } else if (argc == 3) {
57 strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
58 strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
59 } else if (argc == 1) {
60 const char *b = strstr(argv[0], "..."), *a = argv[0];
61 int a_len;
62
63 if (!b) {
64 error(_("single arg format must be symmetric range"));
65 usage_with_options(builtin_range_diff_usage, options);
66 }
67
68 a_len = (int)(b - a);
69 if (!a_len) {
70 a = "HEAD";
71 a_len = strlen(a);
72 }
73 b += 3;
74 if (!*b)
75 b = "HEAD";
76 strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
77 strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
78 } else {
79 error(_("need two commit ranges"));
80 usage_with_options(builtin_range_diff_usage, options);
81 }
82 FREE_AND_NULL(options);
83
84 res = show_range_diff(range1.buf, range2.buf, creation_factor,
85 simple_color < 1, &diffopt, &other_arg);
86
87 argv_array_clear(&other_arg);
88 strbuf_release(&range1);
89 strbuf_release(&range2);
90
91 return res;
92 }
93