diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 260 |
1 files changed, 199 insertions, 61 deletions
diff --git a/parse-options.c b/parse-options.c index fd08bb425c..f5594114ed 100644 --- a/parse-options.c +++ b/parse-options.c @@ -1,6 +1,7 @@ #include "git-compat-util.h" #include "parse-options.h" #include "cache.h" +#include "commit.h" #define OPT_SHORT 1 #define OPT_UNSET 2 @@ -30,11 +31,20 @@ static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt, return 0; } +static void fix_filename(const char *prefix, const char **file) +{ + if (!file || !*file || !prefix || is_absolute_path(*file) + || !strcmp("-", *file)) + return; + *file = xstrdup(prefix_filename(prefix, strlen(prefix), *file)); +} + static int get_value(struct parse_opt_ctx_t *p, const struct option *opt, int flags) { const char *s, *arg; const int unset = flags & OPT_UNSET; + int err; if (unset && p->opt) return opterror(opt, "takes no value", flags); @@ -49,6 +59,7 @@ static int get_value(struct parse_opt_ctx_t *p, /* FALLTHROUGH */ case OPTION_BOOLEAN: case OPTION_BIT: + case OPTION_NEGBIT: case OPTION_SET_INT: case OPTION_SET_PTR: return opterror(opt, "takes no value", flags); @@ -65,6 +76,13 @@ static int get_value(struct parse_opt_ctx_t *p, *(int *)opt->value |= opt->defval; return 0; + case OPTION_NEGBIT: + if (unset) + *(int *)opt->value |= opt->defval; + else + *(int *)opt->value &= ~opt->defval; + return 0; + case OPTION_BOOLEAN: *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1; return 0; @@ -86,6 +104,19 @@ static int get_value(struct parse_opt_ctx_t *p, return get_arg(p, opt, flags, (const char **)opt->value); return 0; + case OPTION_FILENAME: + err = 0; + if (unset) + *(const char **)opt->value = NULL; + else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) + *(const char **)opt->value = (const char *)opt->defval; + else + err = get_arg(p, opt, flags, (const char **)opt->value); + + if (!err) + fix_filename(p->prefix, (const char **)opt->value); + return err; + case OPTION_CALLBACK: if (unset) return (*opt->callback)(opt, NULL, 1) ? (-1) : 0; @@ -120,11 +151,33 @@ static int get_value(struct parse_opt_ctx_t *p, static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options) { + const struct option *numopt = NULL; + for (; options->type != OPTION_END; options++) { if (options->short_name == *p->opt) { p->opt = p->opt[1] ? p->opt + 1 : NULL; return get_value(p, options, OPT_SHORT); } + + /* + * Handle the numerical option later, explicit one-digit + * options take precedence over it. + */ + if (options->type == OPTION_NUMBER) + numopt = options; + } + if (numopt && isdigit(*p->opt)) { + size_t len = 1; + char *arg; + int rc; + + while (isdigit(p->opt[len])) + len++; + arg = xmemdupz(p->opt, len); + p->opt = p->opt[len] ? p->opt + len : NULL; + rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; + free(arg); + return rc; } return -2; } @@ -177,6 +230,9 @@ is_abbreviated: abbrev_flags = flags; continue; } + /* negation allowed? */ + if (options->flags & PARSE_OPT_NONEG) + continue; /* negated and abbreviated very much? */ if (!prefixcmp("no-", arg)) { flags |= OPT_UNSET; @@ -214,6 +270,25 @@ is_abbreviated: return -2; } +static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, + const struct option *options) +{ + for (; options->type != OPTION_END; options++) { + if (!(options->flags & PARSE_OPT_NODASH)) + continue; + if ((options->flags & PARSE_OPT_OPTARG) || + !(options->flags & PARSE_OPT_NOARG)) + die("BUG: dashless options don't support arguments"); + if (!(options->flags & PARSE_OPT_NONEG)) + die("BUG: dashless options don't support negation"); + if (options->long_name) + die("BUG: dashless options can't be long"); + if (options->short_name == arg[0] && arg[1] == '\0') + return get_value(p, options, OPT_SHORT); + } + return -2; +} + static void check_typos(const char *arg, const struct option *options) { if (strlen(arg) < 3) @@ -234,15 +309,42 @@ static void check_typos(const char *arg, const struct option *options) } } +static void parse_options_check(const struct option *opts) +{ + int err = 0; + + for (; opts->type != OPTION_END; opts++) { + if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) && + (opts->flags & PARSE_OPT_OPTARG)) { + if (opts->long_name) { + error("`--%s` uses incompatible flags " + "LASTARG_DEFAULT and OPTARG", opts->long_name); + } else { + error("`-%c` uses incompatible flags " + "LASTARG_DEFAULT and OPTARG", opts->short_name); + } + err |= 1; + } + } + + if (err) + exit(129); +} + void parse_options_start(struct parse_opt_ctx_t *ctx, - int argc, const char **argv, int flags) + int argc, const char **argv, const char *prefix, + int flags) { memset(ctx, 0, sizeof(*ctx)); ctx->argc = argc - 1; ctx->argv = argv + 1; ctx->out = argv; + ctx->prefix = prefix; ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); ctx->flags = flags; + if ((flags & PARSE_OPT_KEEP_UNKNOWN) && + (flags & PARSE_OPT_STOP_AT_NON_OPTION)) + die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); } static int usage_with_options_internal(const char * const *, @@ -252,6 +354,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, const struct option *options, const char * const usagestr[]) { + int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP); + + parse_options_check(options); + /* we must reset ->opt, unknown short option leave it dangling */ ctx->opt = NULL; @@ -259,6 +365,8 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, const char *arg = ctx->argv[0]; if (*arg != '-' || !arg[1]) { + if (parse_nodash_opt(ctx, arg, options) == 0) + continue; if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION) break; ctx->out[ctx->cpidx++] = ctx->argv[0]; @@ -267,18 +375,18 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, if (arg[1] != '-') { ctx->opt = arg + 1; - if (*ctx->opt == 'h') + if (internal_help && *ctx->opt == 'h') return parse_options_usage(usagestr, options); switch (parse_short_opt(ctx, options)) { case -1: return parse_options_usage(usagestr, options); case -2: - return PARSE_OPT_UNKNOWN; + goto unknown; } if (ctx->opt) check_typos(arg + 1, options); while (ctx->opt) { - if (*ctx->opt == 'h') + if (internal_help && *ctx->opt == 'h') return parse_options_usage(usagestr, options); switch (parse_short_opt(ctx, options)) { case -1: @@ -291,7 +399,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, */ ctx->argv[0] = xstrdup(ctx->opt - 1); *(char *)ctx->argv[0] = '-'; - return PARSE_OPT_UNKNOWN; + goto unknown; } } continue; @@ -305,16 +413,22 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, break; } - if (!strcmp(arg + 2, "help-all")) + if (internal_help && !strcmp(arg + 2, "help-all")) return usage_with_options_internal(usagestr, options, 1); - if (!strcmp(arg + 2, "help")) + if (internal_help && !strcmp(arg + 2, "help")) return parse_options_usage(usagestr, options); switch (parse_long_opt(ctx, arg + 2, options)) { case -1: return parse_options_usage(usagestr, options); case -2: - return PARSE_OPT_UNKNOWN; + goto unknown; } + continue; +unknown: + if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) + return PARSE_OPT_UNKNOWN; + ctx->out[ctx->cpidx++] = ctx->argv[0]; + ctx->opt = NULL; } return PARSE_OPT_DONE; } @@ -326,12 +440,13 @@ int parse_options_end(struct parse_opt_ctx_t *ctx) return ctx->cpidx + ctx->argc; } -int parse_options(int argc, const char **argv, const struct option *options, - const char * const usagestr[], int flags) +int parse_options(int argc, const char **argv, const char *prefix, + const struct option *options, const char * const usagestr[], + int flags) { struct parse_opt_ctx_t ctx; - parse_options_start(&ctx, argc, argv, flags); + parse_options_start(&ctx, argc, argv, prefix, flags); switch (parse_options_step(&ctx, options, usagestr)) { case PARSE_OPT_HELP: exit(129); @@ -349,12 +464,29 @@ int parse_options(int argc, const char **argv, const struct option *options, return parse_options_end(&ctx); } +static int usage_argh(const struct option *opts) +{ + const char *s; + int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh; + if (opts->flags & PARSE_OPT_OPTARG) + if (opts->long_name) + s = literal ? "[=%s]" : "[=<%s>]"; + else + s = literal ? "[%s]" : "[<%s>]"; + else + s = literal ? " %s" : " <%s>"; + return fprintf(stderr, s, opts->argh ? opts->argh : "..."); +} + #define USAGE_OPTS_WIDTH 24 #define USAGE_GAP 2 -int usage_with_options_internal(const char * const *usagestr, +static int usage_with_options_internal(const char * const *usagestr, const struct option *opts, int full) { + if (!usagestr) + return PARSE_OPT_HELP; + fprintf(stderr, "usage: %s\n", *usagestr++); while (*usagestr && **usagestr) fprintf(stderr, " or: %s\n", *usagestr++); @@ -382,51 +514,23 @@ int usage_with_options_internal(const char * const *usagestr, continue; pos = fprintf(stderr, " "); - if (opts->short_name) - pos += fprintf(stderr, "-%c", opts->short_name); + if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) { + if (opts->flags & PARSE_OPT_NODASH) + pos += fprintf(stderr, "%c", opts->short_name); + else + pos += fprintf(stderr, "-%c", opts->short_name); + } if (opts->long_name && opts->short_name) pos += fprintf(stderr, ", "); if (opts->long_name) - pos += fprintf(stderr, "--%s", opts->long_name); + pos += fprintf(stderr, "--%s%s", + (opts->flags & PARSE_OPT_NEGHELP) ? "no-" : "", + opts->long_name); + if (opts->type == OPTION_NUMBER) + pos += fprintf(stderr, "-NUM"); - switch (opts->type) { - case OPTION_ARGUMENT: - break; - case OPTION_INTEGER: - if (opts->flags & PARSE_OPT_OPTARG) - if (opts->long_name) - pos += fprintf(stderr, "[=<n>]"); - else - pos += fprintf(stderr, "[<n>]"); - else - pos += fprintf(stderr, " <n>"); - break; - case OPTION_CALLBACK: - if (opts->flags & PARSE_OPT_NOARG) - break; - /* FALLTHROUGH */ - case OPTION_STRING: - if (opts->argh) { - if (opts->flags & PARSE_OPT_OPTARG) - if (opts->long_name) - pos += fprintf(stderr, "[=<%s>]", opts->argh); - else - pos += fprintf(stderr, "[<%s>]", opts->argh); - else - pos += fprintf(stderr, " <%s>", opts->argh); - } else { - if (opts->flags & PARSE_OPT_OPTARG) - if (opts->long_name) - pos += fprintf(stderr, "[=...]"); - else - pos += fprintf(stderr, "[...]"); - else - pos += fprintf(stderr, " ..."); - } - break; - default: /* OPTION_{BIT,BOOLEAN,SET_INT,SET_PTR} */ - break; - } + if (!(opts->flags & PARSE_OPT_NOARG)) + pos += usage_argh(opts); if (pos <= USAGE_OPTS_WIDTH) pad = USAGE_OPTS_WIDTH - pos; @@ -448,6 +552,14 @@ void usage_with_options(const char * const *usagestr, exit(129); } +void usage_msg_opt(const char *msg, + const char * const *usagestr, + const struct option *options) +{ + fprintf(stderr, "%s\n\n", msg); + usage_with_options(usagestr, options); +} + int parse_options_usage(const char * const *usagestr, const struct option *opts) { @@ -484,14 +596,40 @@ int parse_opt_approxidate_cb(const struct option *opt, const char *arg, return 0; } -/* - * This should really be OPTION_FILENAME type as a part of - * parse_options that take prefix to do this while parsing. - */ -extern const char *parse_options_fix_filename(const char *prefix, const char *file) +int parse_opt_verbosity_cb(const struct option *opt, const char *arg, + int unset) { - if (!file || !prefix || is_absolute_path(file) || !strcmp("-", file)) - return file; - return prefix_filename(prefix, strlen(prefix), file); + int *target = opt->value; + + if (unset) + /* --no-quiet, --no-verbose */ + *target = 0; + else if (opt->short_name == 'v') { + if (*target >= 0) + (*target)++; + else + *target = 1; + } else { + if (*target <= 0) + (*target)--; + else + *target = -1; + } + return 0; } +int parse_opt_with_commit(const struct option *opt, const char *arg, int unset) +{ + unsigned char sha1[20]; + struct commit *commit; + + if (!arg) + return -1; + if (get_sha1(arg, sha1)) + return error("malformed object name %s", arg); + commit = lookup_commit_reference(sha1); + if (!commit) + return error("no such commit %s", arg); + commit_list_insert(commit, opt->value); + return 0; +} |