advice.c

   1 #include "cache.h"
   2 #include "config.h"
   3
   4 int advice_push_update_rejected = 1;
   5 int advice_push_non_ff_current = 1;
   6 int advice_push_non_ff_matching = 1;
   7 int advice_push_already_exists = 1;
   8 int advice_push_fetch_first = 1;
   9 int advice_push_needs_force = 1;
  10 int advice_status_hints = 1;
  11 int advice_status_u_option = 1;
  12 int advice_commit_before_merge = 1;
  13 int advice_resolve_conflict = 1;
  14 int advice_implicit_identity = 1;
  15 int advice_detached_head = 1;
  16 int advice_set_upstream_failure = 1;
  17 int advice_object_name_warning = 1;
  18 int advice_rm_hints = 1;
  19 int advice_add_embedded_repo = 1;
  20 int advice_ignored_hook = 1;
  21 int advice_waiting_for_editor = 1;
  22
  23 static struct {
  24         const char *name;
  25         int *preference;
  26 } advice_config[] = {
  27         { "pushupdaterejected", &advice_push_update_rejected },
  28         { "pushnonffcurrent", &advice_push_non_ff_current },
  29         { "pushnonffmatching", &advice_push_non_ff_matching },
  30         { "pushalreadyexists", &advice_push_already_exists },
  31         { "pushfetchfirst", &advice_push_fetch_first },
  32         { "pushneedsforce", &advice_push_needs_force },
  33         { "statushints", &advice_status_hints },
  34         { "statusuoption", &advice_status_u_option },
  35         { "commitbeforemerge", &advice_commit_before_merge },
  36         { "resolveconflict", &advice_resolve_conflict },
  37         { "implicitidentity", &advice_implicit_identity },
  38         { "detachedhead", &advice_detached_head },
  39         { "setupstreamfailure", &advice_set_upstream_failure },
  40         { "objectnamewarning", &advice_object_name_warning },
  41         { "rmhints", &advice_rm_hints },
  42         { "addembeddedrepo", &advice_add_embedded_repo },
  43         { "ignoredhook", &advice_ignored_hook },
  44         { "waitingforeditor", &advice_waiting_for_editor },
  45
  46         /* make this an alias for backward compatibility */
  47         { "pushnonfastforward", &advice_push_update_rejected }
  48 };
  49
  50 void advise(const char *advice, ...)
  51 {
  52         struct strbuf buf = STRBUF_INIT;
  53         va_list params;
  54         const char *cp, *np;
  55
  56         va_start(params, advice);
  57         strbuf_vaddf(&buf, advice, params);
  58         va_end(params);
  59
  60         for (cp = buf.buf; *cp; cp = np) {
  61                 np = strchrnul(cp, '\n');
  62                 fprintf(stderr, _("hint: %.*s\n"), (int)(np - cp), cp);
  63                 if (*np)
  64                         np++;
  65         }
  66         strbuf_release(&buf);
  67 }
  68
  69 int git_default_advice_config(const char *var, const char *value)
  70 {
  71         const char *k;
  72         int i;
  73
  74         if (!skip_prefix(var, "advice.", &k))
  75                 return 0;
  76
  77         for (i = 0; i < ARRAY_SIZE(advice_config); i++) {
  78                 if (strcmp(k, advice_config[i].name))
  79                         continue;
  80                 *advice_config[i].preference = git_config_bool(var, value);
  81                 return 0;
  82         }
  83
  84         return 0;
  85 }
  86
  87 int error_resolve_conflict(const char *me)
  88 {
  89         if (!strcmp(me, "cherry-pick"))
  90                 error(_("Cherry-picking is not possible because you have unmerged files."));
  91         else if (!strcmp(me, "commit"))
  92                 error(_("Committing is not possible because you have unmerged files."));
  93         else if (!strcmp(me, "merge"))
  94                 error(_("Merging is not possible because you have unmerged files."));
  95         else if (!strcmp(me, "pull"))
  96                 error(_("Pulling is not possible because you have unmerged files."));
  97         else if (!strcmp(me, "revert"))
  98                 error(_("Reverting is not possible because you have unmerged files."));
  99         else
 100                 error(_("It is not possible to %s because you have unmerged files."),
 101                         me);
 102
 103         if (advice_resolve_conflict)
 104                 /*
 105                  * Message used both when 'git commit' fails and when
 106                  * other commands doing a merge do.
 107                  */
 108                 advise(_("Fix them up in the work tree, and then use 'git add/rm <file>'\n"
 109                          "as appropriate to mark resolution and make a commit."));
 110         return -1;
 111 }
 112
 113 void NORETURN die_resolve_conflict(const char *me)
 114 {
 115         error_resolve_conflict(me);
 116         die(_("Exiting because of an unresolved conflict."));
 117 }
 118
 119 void NORETURN die_conclude_merge(void)
 120 {
 121         error(_("You have not concluded your merge (MERGE_HEAD exists)."));
 122         if (advice_resolve_conflict)
 123                 advise(_("Please, commit your changes before merging."));
 124         die(_("Exiting because of unfinished merge."));
 125 }
 126
 127 void detach_advice(const char *new_name)
 128 {
 129         const char *fmt =
 130         _("Note: checking out '%s'.\n\n"
 131         "You are in 'detached HEAD' state. You can look around, make experimental\n"
 132         "changes and commit them, and you can discard any commits you make in this\n"
 133         "state without impacting any branches by performing another checkout.\n\n"
 134         "If you want to create a new branch to retain commits you create, you may\n"
 135         "do so (now or later) by using -b with the checkout command again. Example:\n\n"
 136         "  git checkout -b <new-branch-name>\n\n");
 137
 138         fprintf(stderr, fmt, new_name);
 139 }