t6036: add a failed conflict detection case with symlink add/add

diff --git a/parse-options.c b/parse-options.c
index a0bae92b0cacc4fe4d1beb58dc5af890ff72fd56..7db84227ab34cb33849f4327af58acd925f782c8 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -427,6 +427,98 @@ void parse_options_start(struct parse_opt_ctx_t *ctx,
        parse_options_check(options);
 }
 
+static void show_negated_gitcomp(const struct option *opts, int nr_noopts)
+{
+       int printed_dashdash = 0;
+
+       for (; opts->type != OPTION_END; opts++) {
+               int has_unset_form = 0;
+               const char *name;
+
+               if (!opts->long_name)
+                       continue;
+               if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE))
+                       continue;
+               if (opts->flags & PARSE_OPT_NONEG)
+                       continue;
+
+               switch (opts->type) {
+               case OPTION_STRING:
+               case OPTION_FILENAME:
+               case OPTION_INTEGER:
+               case OPTION_MAGNITUDE:
+               case OPTION_CALLBACK:
+               case OPTION_BIT:
+               case OPTION_NEGBIT:
+               case OPTION_COUNTUP:
+               case OPTION_SET_INT:
+                       has_unset_form = 1;
+                       break;
+               default:
+                       break;
+               }
+               if (!has_unset_form)
+                       continue;
+
+               if (skip_prefix(opts->long_name, "no-", &name)) {
+                       if (nr_noopts < 0)
+                               printf(" --%s", name);
+               } else if (nr_noopts >= 0) {
+                       if (nr_noopts && !printed_dashdash) {
+                               printf(" --");
+                               printed_dashdash = 1;
+                       }
+                       printf(" --no-%s", opts->long_name);
+                       nr_noopts++;
+               }
+       }
+}
+
+static int show_gitcomp(struct parse_opt_ctx_t *ctx,
+                       const struct option *opts)
+{
+       const struct option *original_opts = opts;
+       int nr_noopts = 0;
+
+       for (; opts->type != OPTION_END; opts++) {
+               const char *suffix = "";
+
+               if (!opts->long_name)
+                       continue;
+               if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE))
+                       continue;
+
+               switch (opts->type) {
+               case OPTION_GROUP:
+                       continue;
+               case OPTION_STRING:
+               case OPTION_FILENAME:
+               case OPTION_INTEGER:
+               case OPTION_MAGNITUDE:
+               case OPTION_CALLBACK:
+                       if (opts->flags & PARSE_OPT_NOARG)
+                               break;
+                       if (opts->flags & PARSE_OPT_OPTARG)
+                               break;
+                       if (opts->flags & PARSE_OPT_LASTARG_DEFAULT)
+                               break;
+                       suffix = "=";
+                       break;
+               default:
+                       break;
+               }
+               if (opts->flags & PARSE_OPT_COMP_ARG)
+                       suffix = "=";
+               if (starts_with(opts->long_name, "no-"))
+                       nr_noopts++;
+               printf(" --%s%s", opts->long_name, suffix);
+       }
+       show_negated_gitcomp(original_opts, -1);
+       show_negated_gitcomp(original_opts, nr_noopts);
+       fputc('\n', stdout);
+       exit(0);
+}
+
 static int usage_with_options_internal(struct parse_opt_ctx_t *,
                                       const char * const *,
                                       const struct option *, int, int);
@@ -456,6 +548,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h"))
                        goto show_usage;
 
+               /* lone --git-completion-helper is asked by git-completion.bash */
+               if (ctx->total == 1 && !strcmp(arg + 1, "-git-completion-helper"))
+                       return show_gitcomp(ctx, options);
+
                if (arg[1] != '-') {
                        ctx->opt = arg + 1;
                        switch (parse_short_opt(ctx, options)) {
@@ -526,7 +622,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 
 int parse_options_end(struct parse_opt_ctx_t *ctx)
 {
-       memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
+       MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc);
        ctx->out[ctx->cpidx + ctx->argc] = NULL;
        return ctx->cpidx + ctx->argc;
 }