diff options
Diffstat (limited to 'diff.c')
-rw-r--r-- | diff.c | 339 |
1 files changed, 168 insertions, 171 deletions
@@ -4640,66 +4640,6 @@ void diff_setup_done(struct diff_options *options) FREE_AND_NULL(options->parseopts); } -static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) -{ - char c, *eq; - int len; - - if (*arg != '-') - return 0; - c = *++arg; - if (!c) - return 0; - if (c == arg_short) { - c = *++arg; - if (!c) - return 1; - if (val && isdigit(c)) { - char *end; - int n = strtoul(arg, &end, 10); - if (*end) - return 0; - *val = n; - return 1; - } - return 0; - } - if (c != '-') - return 0; - arg++; - eq = strchrnul(arg, '='); - len = eq - arg; - if (!len || strncmp(arg, arg_long, len)) - return 0; - if (*eq) { - int n; - char *end; - if (!isdigit(*++eq)) - return 0; - n = strtoul(eq, &end, 10); - if (*end) - return 0; - *val = n; - } - return 1; -} - -static inline int short_opt(char opt, const char **argv, - const char **optarg) -{ - const char *arg = argv[0]; - if (arg[0] != '-' || arg[1] != opt) - return 0; - if (arg[2] != '\0') { - *optarg = arg + 2; - return 1; - } - if (!argv[1]) - die("Option '%c' requires a value", opt); - *optarg = argv[1]; - return 2; -} - int parse_long_opt(const char *opt, const char **argv, const char **optarg) { @@ -4819,10 +4759,19 @@ static unsigned filter_bit_tst(char status, const struct diff_options *opt) return opt->filter & filter_bit[(int) status]; } -static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) +unsigned diff_filter_bit(char status) { + prepare_filter_bits(); + return filter_bit[(int) status]; +} + +static int diff_opt_diff_filter(const struct option *option, + const char *optarg, int unset) +{ + struct diff_options *opt = option->value; int i, optch; + BUG_ON_OPT_NEG(unset); prepare_filter_bits(); /* @@ -4853,7 +4802,8 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0; if (!bit) - return optarg[i]; + return error(_("unknown change class '%c' in --diff-filter=%s"), + optarg[i], optarg); if (negate) opt->filter &= ~bit; else @@ -4868,25 +4818,29 @@ static void enable_patch_output(int *fmt) *fmt |= DIFF_FORMAT_PATCH; } -static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *arg) +static int diff_opt_ws_error_highlight(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; int val = parse_ws_error_highlight(arg); - if (val < 0) { - error("unknown value after ws-error-highlight=%.*s", - -1 - val, arg); - return 0; - } + BUG_ON_OPT_NEG(unset); + if (val < 0) + return error(_("unknown value after ws-error-highlight=%.*s"), + -1 - val, arg); opt->ws_error_highlight = val; - return 1; + return 0; } -static int parse_objfind_opt(struct diff_options *opt, const char *arg) +static int diff_opt_find_object(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; struct object_id oid; + BUG_ON_OPT_NEG(unset); if (get_oid(arg, &oid)) - return error("unable to resolve '%s'", arg); + return error(_("unable to resolve '%s'"), arg); if (!opt->objfind) opt->objfind = xcalloc(1, sizeof(*opt->objfind)); @@ -4895,7 +4849,7 @@ static int parse_objfind_opt(struct diff_options *opt, const char *arg) opt->flags.recursive = 1; opt->flags.tree_in_recursive = 1; oidset_insert(opt->objfind, &oid); - return 1; + return 0; } static int diff_opt_anchored(const struct option *opt, @@ -4960,6 +4914,45 @@ static int diff_opt_char(const struct option *opt, return 0; } +static int diff_opt_color_moved(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + if (unset) { + options->color_moved = COLOR_MOVED_NO; + } else if (!arg) { + if (diff_color_moved_default) + options->color_moved = diff_color_moved_default; + if (options->color_moved == COLOR_MOVED_NO) + options->color_moved = COLOR_MOVED_DEFAULT; + } else { + int cm = parse_color_moved(arg); + if (cm < 0) + return error(_("bad --color-moved argument: %s"), arg); + options->color_moved = cm; + } + return 0; +} + +static int diff_opt_color_moved_ws(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + unsigned cm; + + if (unset) { + options->color_moved_ws_handling = 0; + return 0; + } + + cm = parse_color_moved_ws(arg); + if (cm & COLOR_MOVED_WS_ERROR) + return error(_("invalid mode '%s' in --color-moved-ws"), arg); + options->color_moved_ws_handling = cm; + return 0; +} + static int diff_opt_color_words(const struct option *opt, const char *arg, int unset) { @@ -5085,6 +5078,30 @@ static int diff_opt_ignore_submodules(const struct option *opt, return 0; } +static int diff_opt_line_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->line_prefix = optarg; + options->line_prefix_length = strlen(options->line_prefix); + graph_setup_line_prefix(options); + return 0; +} + +static int diff_opt_no_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(optarg); + options->a_prefix = ""; + options->b_prefix = ""; + return 0; +} + static enum parse_opt_result diff_opt_output(struct parse_opt_ctx_t *ctx, const struct option *opt, const char *arg, int unset) @@ -5122,6 +5139,28 @@ static int diff_opt_patience(const struct option *opt, return 0; } +static int diff_opt_pickaxe_regex(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; + return 0; +} + +static int diff_opt_pickaxe_string(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; + return 0; +} + static int diff_opt_relative(const struct option *opt, const char *arg, int unset) { @@ -5301,6 +5340,28 @@ static void prep_parse_options(struct diff_options *options) N_("show full pre- and post-image object names on the \"index\" lines")), OPT_COLOR_FLAG(0, "color", &options->use_color, N_("show colored diff")), + OPT_CALLBACK_F(0, "ws-error-highlight", options, N_("<kind>"), + N_("highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff"), + PARSE_OPT_NONEG, diff_opt_ws_error_highlight), + OPT_SET_INT('z', NULL, &options->line_termination, + N_("do not munge pathnames and use NULs as output field terminators in --raw or --numstat"), + 0), + OPT__ABBREV(&options->abbrev), + OPT_STRING_F(0, "src-prefix", &options->a_prefix, N_("<prefix>"), + N_("show the given source prefix instead of \"a/\""), + PARSE_OPT_NONEG), + OPT_STRING_F(0, "dst-prefix", &options->b_prefix, N_("<prefix>"), + N_("show the given source prefix instead of \"b/\""), + PARSE_OPT_NONEG), + OPT_CALLBACK_F(0, "line-prefix", options, N_("<prefix>"), + N_("prepend an additional prefix to every line of output"), + PARSE_OPT_NONEG, diff_opt_line_prefix), + OPT_CALLBACK_F(0, "no-prefix", options, NULL, + N_("do not show any source or destination prefix"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_no_prefix), + OPT_INTEGER_F(0, "inter-hunk-context", &options->interhunkcontext, + N_("show context between diff hunks up to the specified number of lines"), + PARSE_OPT_NONEG), OPT_CALLBACK_F(0, "output-indicator-new", &options->output_indicators[OUTPUT_INDICATOR_NEW], N_("<char>"), @@ -5343,6 +5404,8 @@ static void prep_parse_options(struct diff_options *options) OPT_CALLBACK_F(0, "follow", options, NULL, N_("continue listing the history of a file beyond renames"), PARSE_OPT_NOARG, diff_opt_follow), + OPT_INTEGER('l', NULL, &options->rename_limit, + N_("prevent rename/copy detection if the number of rename/copy targets exceeds given limit")), OPT_GROUP(N_("Diff algorithm options")), OPT_BIT(0, "minimal", &options->xdl_opts, @@ -5388,6 +5451,12 @@ static void prep_parse_options(struct diff_options *options) OPT_CALLBACK_F(0, "color-words", options, N_("<regex>"), N_("equivalent to --word-diff=color --word-diff-regex=<regex>"), PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_color_words), + OPT_CALLBACK_F(0, "color-moved", options, N_("<mode>"), + N_("move lines of code are colored differently"), + PARSE_OPT_OPTARG, diff_opt_color_moved), + OPT_CALLBACK_F(0, "color-moved-ws", options, N_("<mode>"), + N_("how white spaces are ignored in --color-moved"), + 0, diff_opt_color_moved_ws), OPT_GROUP(N_("Diff other options")), OPT_CALLBACK_F(0, "relative", options, N_("<prefix>"), @@ -5415,6 +5484,32 @@ static void prep_parse_options(struct diff_options *options) N_("specify how differences in submodules are shown"), PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_submodule), + OPT_SET_INT_F(0, "ita-invisible-in-index", &options->ita_invisible_in_index, + N_("hide 'git add -N' entries from the index"), + 1, PARSE_OPT_NONEG), + OPT_SET_INT_F(0, "ita-visible-in-index", &options->ita_invisible_in_index, + N_("treat 'git add -N' entries as real in the index"), + 0, PARSE_OPT_NONEG), + OPT_CALLBACK_F('S', NULL, options, N_("<string>"), + N_("look for differences that change the number of occurrences of the specified string"), + 0, diff_opt_pickaxe_string), + OPT_CALLBACK_F('G', NULL, options, N_("<regex>"), + N_("look for differences that change the number of occurrences of the specified regex"), + 0, diff_opt_pickaxe_regex), + OPT_BIT_F(0, "pickaxe-all", &options->pickaxe_opts, + N_("show all changes in the changeset with -S or -G"), + DIFF_PICKAXE_ALL, PARSE_OPT_NONEG), + OPT_BIT_F(0, "pickaxe-regex", &options->pickaxe_opts, + N_("treat <string> in -S as extended POSIX regular expression"), + DIFF_PICKAXE_REGEX, PARSE_OPT_NONEG), + OPT_FILENAME('O', NULL, &options->orderfile, + N_("control the order in which files appear in the output")), + OPT_CALLBACK_F(0, "find-object", options, N_("<object-id>"), + N_("look for differences that change the number of occurrences of the specified object"), + PARSE_OPT_NONEG, diff_opt_find_object), + OPT_CALLBACK_F(0, "diff-filter", options, N_("[(A|C|D|M|R|T|U|X|B)...[*]]"), + N_("select files by diff type"), + PARSE_OPT_NONEG, diff_opt_diff_filter), { OPTION_CALLBACK, 0, "output", options, N_("<file>"), N_("Output to a specific file"), PARSE_OPT_NONEG, NULL, 0, diff_opt_output }, @@ -5429,10 +5524,6 @@ static void prep_parse_options(struct diff_options *options) int diff_opt_parse(struct diff_options *options, const char **av, int ac, const char *prefix) { - const char *arg = av[0]; - const char *optarg; - int argcount; - if (!prefix) prefix = ""; @@ -5443,101 +5534,7 @@ int diff_opt_parse(struct diff_options *options, PARSE_OPT_ONE_SHOT | PARSE_OPT_STOP_AT_NON_OPTION); - if (ac) - return ac; - - /* flags options */ - if (!strcmp(arg, "--color-moved")) { - if (diff_color_moved_default) - options->color_moved = diff_color_moved_default; - if (options->color_moved == COLOR_MOVED_NO) - options->color_moved = COLOR_MOVED_DEFAULT; - } else if (!strcmp(arg, "--no-color-moved")) - options->color_moved = COLOR_MOVED_NO; - else if (skip_prefix(arg, "--color-moved=", &arg)) { - int cm = parse_color_moved(arg); - if (cm < 0) - return error("bad --color-moved argument: %s", arg); - options->color_moved = cm; - } else if (!strcmp(arg, "--no-color-moved-ws")) { - options->color_moved_ws_handling = 0; - } else if (skip_prefix(arg, "--color-moved-ws=", &arg)) { - unsigned cm = parse_color_moved_ws(arg); - if (cm & COLOR_MOVED_WS_ERROR) - return -1; - options->color_moved_ws_handling = cm; - } else if (skip_prefix(arg, "--ws-error-highlight=", &arg)) - return parse_ws_error_highlight_opt(options, arg); - else if (!strcmp(arg, "--ita-invisible-in-index")) - options->ita_invisible_in_index = 1; - else if (!strcmp(arg, "--ita-visible-in-index")) - options->ita_invisible_in_index = 0; - - /* misc options */ - else if (!strcmp(arg, "-z")) - options->line_termination = 0; - else if ((argcount = short_opt('l', av, &optarg))) { - options->rename_limit = strtoul(optarg, NULL, 10); - return argcount; - } - else if ((argcount = short_opt('S', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; - return argcount; - } else if ((argcount = short_opt('G', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; - return argcount; - } - else if (!strcmp(arg, "--pickaxe-all")) - options->pickaxe_opts |= DIFF_PICKAXE_ALL; - else if (!strcmp(arg, "--pickaxe-regex")) - options->pickaxe_opts |= DIFF_PICKAXE_REGEX; - else if ((argcount = short_opt('O', av, &optarg))) { - options->orderfile = prefix_filename(prefix, optarg); - return argcount; - } else if (skip_prefix(arg, "--find-object=", &arg)) - return parse_objfind_opt(options, arg); - else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) { - int offending = parse_diff_filter_opt(optarg, options); - if (offending) - die("unknown change class '%c' in --diff-filter=%s", - offending, optarg); - return argcount; - } - else if (!strcmp(arg, "--no-abbrev")) - options->abbrev = 0; - else if (!strcmp(arg, "--abbrev")) - options->abbrev = DEFAULT_ABBREV; - else if (skip_prefix(arg, "--abbrev=", &arg)) { - options->abbrev = strtoul(arg, NULL, 10); - if (options->abbrev < MINIMUM_ABBREV) - options->abbrev = MINIMUM_ABBREV; - else if (the_hash_algo->hexsz < options->abbrev) - options->abbrev = the_hash_algo->hexsz; - } - else if ((argcount = parse_long_opt("src-prefix", av, &optarg))) { - options->a_prefix = optarg; - return argcount; - } - else if ((argcount = parse_long_opt("line-prefix", av, &optarg))) { - options->line_prefix = optarg; - options->line_prefix_length = strlen(options->line_prefix); - graph_setup_line_prefix(options); - return argcount; - } - else if ((argcount = parse_long_opt("dst-prefix", av, &optarg))) { - options->b_prefix = optarg; - return argcount; - } - else if (!strcmp(arg, "--no-prefix")) - options->a_prefix = options->b_prefix = ""; - else if (opt_arg(arg, '\0', "inter-hunk-context", - &options->interhunkcontext)) - ; - else - return 0; - return 1; + return ac; } int parse_rename_score(const char **cp_p) |