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)
{
return 1;
}
-static int parse_submodule_opt(struct diff_options *options, const char *value)
-{
- if (parse_submodule_params(options, value))
- die(_("Failed to parse --submodule option parameter: '%s'"),
- value);
- return 1;
-}
-
static const char diff_status_letters[] = {
DIFF_STATUS_ADDED,
DIFF_STATUS_COPIED,
return opt->filter & filter_bit[(int) status];
}
-static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
+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();
/*
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
*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));
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,
return 0;
}
+static int diff_opt_ignore_submodules(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct diff_options *options = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ if (!arg)
+ arg = "all";
+ options->flags.override_submodule_config = 1;
+ handle_ignore_submodules_arg(options, arg);
+ 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)
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)
{
return 0;
}
+static int diff_opt_submodule(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct diff_options *options = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ if (!arg)
+ arg = "log";
+ if (parse_submodule_params(options, arg))
+ return error(_("failed to parse --submodule option parameter: '%s'"),
+ arg);
+ return 0;
+}
+
+static int diff_opt_textconv(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct diff_options *options = opt->value;
+
+ BUG_ON_OPT_ARG(arg);
+ if (unset) {
+ options->flags.allow_textconv = 0;
+ } else {
+ options->flags.allow_textconv = 1;
+ options->flags.textconv_set_via_cmdline = 1;
+ }
+ return 0;
+}
+
static int diff_opt_unified(const struct option *opt,
const char *arg, int unset)
{
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_CALLBACK_F(0, "output-indicator-new",
&options->output_indicators[OUTPUT_INDICATOR_NEW],
N_("<char>"),
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,
N_("exit with 1 if there were differences, 0 otherwise")),
OPT_BOOL(0, "quiet", &options->flags.quick,
N_("disable all output of the program")),
+ OPT_BOOL(0, "ext-diff", &options->flags.allow_external,
+ N_("allow an external diff helper to be executed")),
+ OPT_CALLBACK_F(0, "textconv", options, NULL,
+ N_("run external text conversion filters when comparing binary files"),
+ PARSE_OPT_NOARG, diff_opt_textconv),
+ OPT_CALLBACK_F(0, "ignore-submodules", options, N_("<when>"),
+ N_("ignore changes to submodules in the diff generation"),
+ PARSE_OPT_NONEG | PARSE_OPT_OPTARG,
+ diff_opt_ignore_submodules),
+ OPT_CALLBACK_F(0, "submodule", options, N_("<format>"),
+ 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 },
if (cm & COLOR_MOVED_WS_ERROR)
return -1;
options->color_moved_ws_handling = cm;
- } else if (!strcmp(arg, "--ext-diff"))
- options->flags.allow_external = 1;
- else if (!strcmp(arg, "--no-ext-diff"))
- options->flags.allow_external = 0;
- else if (!strcmp(arg, "--textconv")) {
- options->flags.allow_textconv = 1;
- options->flags.textconv_set_via_cmdline = 1;
- } else if (!strcmp(arg, "--no-textconv"))
- options->flags.allow_textconv = 0;
- else if (skip_to_optional_arg_default(arg, "--ignore-submodules", &arg, "all")) {
- options->flags.override_submodule_config = 1;
- handle_ignore_submodules_arg(options, arg);
- } else if (skip_to_optional_arg_default(arg, "--submodule", &arg, "log"))
- return parse_submodule_opt(options, arg);
- 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"))