1#include "cache.h"
2
3int advice_push_nonfastforward = 1;
4int advice_status_hints = 1;
5int advice_commit_before_merge = 1;
6int advice_resolve_conflict = 1;
7int advice_implicit_identity = 1;
8int advice_detached_head = 1;
9
10static struct {
11 const char *name;
12 int *preference;
13} advice_config[] = {
14 { "pushnonfastforward", &advice_push_nonfastforward },
15 { "statushints", &advice_status_hints },
16 { "commitbeforemerge", &advice_commit_before_merge },
17 { "resolveconflict", &advice_resolve_conflict },
18 { "implicitidentity", &advice_implicit_identity },
19 { "detachedhead", &advice_detached_head },
20};
21
22void advise(const char *advice, ...)
23{
24 struct strbuf buf = STRBUF_INIT;
25 va_list params;
26 const char *cp, *np;
27
28 va_start(params, advice);
29 strbuf_addf(&buf, advice, params);
30 va_end(params);
31
32 for (cp = buf.buf; *cp; cp = np) {
33 np = strchrnul(cp, '\n');
34 fprintf(stderr, _("hint: %.*s\n"), (int)(np - cp), cp);
35 if (*np)
36 np++;
37 }
38 strbuf_release(&buf);
39}
40
41int git_default_advice_config(const char *var, const char *value)
42{
43 const char *k = skip_prefix(var, "advice.");
44 int i;
45
46 for (i = 0; i < ARRAY_SIZE(advice_config); i++) {
47 if (strcmp(k, advice_config[i].name))
48 continue;
49 *advice_config[i].preference = git_config_bool(var, value);
50 return 0;
51 }
52
53 return 0;
54}
55
56int error_resolve_conflict(const char *me)
57{
58 error("'%s' is not possible because you have unmerged files.", me);
59 if (advice_resolve_conflict)
60 /*
61 * Message used both when 'git commit' fails and when
62 * other commands doing a merge do.
63 */
64 advise(_("Fix them up in the work tree,\n"
65 "and then use 'git add/rm <file>' as\n"
66 "appropriate to mark resolution and make a commit,\n"
67 "or use 'git commit -a'."));
68 return -1;
69}
70
71void NORETURN die_resolve_conflict(const char *me)
72{
73 error_resolve_conflict(me);
74 die("Exiting because of an unresolved conflict.");
75}