Imported Upstream version 2.23.2
[platform/upstream/git.git] / builtin / range-diff.c
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
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         int simple_color = -1;
19         struct option range_diff_options[] = {
20                 OPT_INTEGER(0, "creation-factor", &creation_factor,
21                             N_("Percentage by which creation is weighted")),
22                 OPT_BOOL(0, "no-dual-color", &simple_color,
23                             N_("use simple diff colors")),
24                 OPT_END()
25         };
26         struct option *options;
27         int res = 0;
28         struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;
29
30         git_config(git_diff_ui_config, NULL);
31
32         repo_diff_setup(the_repository, &diffopt);
33
34         options = parse_options_concat(range_diff_options, diffopt.parseopts);
35         argc = parse_options(argc, argv, prefix, options,
36                              builtin_range_diff_usage, 0);
37
38         diff_setup_done(&diffopt);
39
40         /* force color when --dual-color was used */
41         if (!simple_color)
42                 diffopt.use_color = 1;
43
44         if (argc == 2) {
45                 if (!strstr(argv[0], ".."))
46                         die(_("no .. in range: '%s'"), argv[0]);
47                 strbuf_addstr(&range1, argv[0]);
48
49                 if (!strstr(argv[1], ".."))
50                         die(_("no .. in range: '%s'"), argv[1]);
51                 strbuf_addstr(&range2, argv[1]);
52         } else if (argc == 3) {
53                 strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
54                 strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
55         } else if (argc == 1) {
56                 const char *b = strstr(argv[0], "..."), *a = argv[0];
57                 int a_len;
58
59                 if (!b) {
60                         error(_("single arg format must be symmetric range"));
61                         usage_with_options(builtin_range_diff_usage, options);
62                 }
63
64                 a_len = (int)(b - a);
65                 if (!a_len) {
66                         a = "HEAD";
67                         a_len = strlen(a);
68                 }
69                 b += 3;
70                 if (!*b)
71                         b = "HEAD";
72                 strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
73                 strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
74         } else {
75                 error(_("need two commit ranges"));
76                 usage_with_options(builtin_range_diff_usage, options);
77         }
78         FREE_AND_NULL(options);
79
80         res = show_range_diff(range1.buf, range2.buf, creation_factor,
81                               simple_color < 1, &diffopt);
82
83         strbuf_release(&range1);
84         strbuf_release(&range2);
85
86         return res;
87 }