diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 956 |
1 files changed, 603 insertions, 353 deletions
@@ -23,6 +23,7 @@ #include "argv-array.h" #include "graph.h" #include "packfile.h" +#include "parse-options.h" #include "help.h" #ifdef NO_FAST_WORKING_DIRECTORY @@ -103,11 +104,6 @@ static const char *color_diff_slots[] = { [DIFF_FILE_NEW_BOLD] = "newBold", }; -static NORETURN void die_want_option(const char *option_name) -{ - die(_("option '%s' requires a value"), option_name); -} - define_list_config_array_extra(color_diff_slots, {"plain"}); static int parse_diff_color_slot(const char *var) @@ -178,6 +174,10 @@ static int parse_submodule_params(struct diff_options *options, const char *valu options->submodule_format = DIFF_SUBMODULE_SHORT; else if (!strcmp(value, "diff")) options->submodule_format = DIFF_SUBMODULE_INLINE_DIFF; + /* + * Please update $__git_diff_submodule_formats in + * git-completion.bash when you add new formats. + */ else return -1; return 0; @@ -204,6 +204,10 @@ long parse_algorithm_value(const char *value) return XDF_PATIENCE_DIFF; else if (!strcasecmp(value, "histogram")) return XDF_HISTOGRAM_DIFF; + /* + * Please update $__git_diff_algorithms in git-completion.bash + * when you add new algorithms. + */ return -1; } @@ -1613,8 +1617,7 @@ static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line return ws_blank_line(line, len, ecbdata->ws_rule); } -static void emit_add_line(const char *reset, - struct emit_callback *ecbdata, +static void emit_add_line(struct emit_callback *ecbdata, const char *line, int len) { unsigned flags = WSEH_NEW | ecbdata->ws_rule; @@ -1624,16 +1627,14 @@ static void emit_add_line(const char *reset, emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_PLUS, line, len, flags); } -static void emit_del_line(const char *reset, - struct emit_callback *ecbdata, +static void emit_del_line(struct emit_callback *ecbdata, const char *line, int len) { unsigned flags = WSEH_OLD | ecbdata->ws_rule; emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_MINUS, line, len, flags); } -static void emit_context_line(const char *reset, - struct emit_callback *ecbdata, +static void emit_context_line(struct emit_callback *ecbdata, const char *line, int len) { unsigned flags = WSEH_CONTEXT | ecbdata->ws_rule; @@ -1742,7 +1743,6 @@ static void emit_rewrite_lines(struct emit_callback *ecb, int prefix, const char *data, int size) { const char *endp = NULL; - const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET); while (0 < size) { int len; @@ -1751,10 +1751,10 @@ static void emit_rewrite_lines(struct emit_callback *ecb, len = endp ? (endp - data + 1) : size; if (prefix != '+') { ecb->lno_in_preimage++; - emit_del_line(reset, ecb, data, len); + emit_del_line(ecb, data, len); } else { ecb->lno_in_postimage++; - emit_add_line(reset, ecb, data, len); + emit_add_line(ecb, data, len); } size -= len; data += len; @@ -2291,7 +2291,7 @@ const char *diff_line_prefix(struct diff_options *opt) return msgbuf->buf; } -static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, unsigned long len) +static unsigned long sane_truncate_line(char *line, unsigned long len) { const char *cp; unsigned long allot; @@ -2325,7 +2325,6 @@ static void find_lno(const char *line, struct emit_callback *ecbdata) static void fn_out_consume(void *priv, char *line, unsigned long len) { struct emit_callback *ecbdata = priv; - const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET); struct diff_options *o = ecbdata->opt; o->found_changes = 1; @@ -2356,7 +2355,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) if (line[0] == '@') { if (ecbdata->diff_words) diff_words_flush(ecbdata); - len = sane_truncate_line(ecbdata, line, len); + len = sane_truncate_line(line, len); find_lno(line, ecbdata); emit_hunk_header(ecbdata, line, len); return; @@ -2392,16 +2391,16 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) switch (line[0]) { case '+': ecbdata->lno_in_postimage++; - emit_add_line(reset, ecbdata, line + 1, len - 1); + emit_add_line(ecbdata, line + 1, len - 1); break; case '-': ecbdata->lno_in_preimage++; - emit_del_line(reset, ecbdata, line + 1, len - 1); + emit_del_line(ecbdata, line + 1, len - 1); break; case ' ': ecbdata->lno_in_postimage++; ecbdata->lno_in_preimage++; - emit_context_line(reset, ecbdata, line + 1, len - 1); + emit_context_line(ecbdata, line + 1, len - 1); break; default: /* incomplete line at the end */ @@ -4183,7 +4182,6 @@ static void run_external_diff(const char *pgm, struct diff_filespec *one, struct diff_filespec *two, const char *xfrm_msg, - int complete_rewrite, struct diff_options *o) { struct argv_array argv = ARGV_ARRAY_INIT; @@ -4341,8 +4339,7 @@ static void run_diff_cmd(const char *pgm, } if (pgm) { - run_external_diff(pgm, name, other, one, two, xfrm_msg, - complete_rewrite, o); + run_external_diff(pgm, name, other, one, two, xfrm_msg, o); return; } if (one && two) @@ -4491,6 +4488,8 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o) builtin_checkdiff(name, other, attr_path, p->one, p->two, o); } +static void prep_parse_options(struct diff_options *options); + void repo_diff_setup(struct repository *r, struct diff_options *options) { memcpy(options, &default_diff_options, sizeof(*options)); @@ -4532,6 +4531,8 @@ void repo_diff_setup(struct repository *r, struct diff_options *options) options->color_moved = diff_color_moved_default; options->color_moved_ws_handling = diff_color_moved_ws_default; + + prep_parse_options(options); } void diff_setup_done(struct diff_options *options) @@ -4635,6 +4636,8 @@ void diff_setup_done(struct diff_options *options) if (!options->use_color || external_diff()) options->color_moved = 0; + + FREE_AND_NULL(options->parseopts); } static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) @@ -4681,8 +4684,6 @@ static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *va return 1; } -static int diff_scoreopt_parse(const char *opt); - static inline int short_opt(char opt, const char **argv, const char **optarg) { @@ -4720,77 +4721,56 @@ int parse_long_opt(const char *opt, const char **argv, return 2; } -static int stat_opt(struct diff_options *options, const char **av) +static int diff_opt_stat(const struct option *opt, const char *value, int unset) { - const char *arg = av[0]; - char *end; + struct diff_options *options = opt->value; int width = options->stat_width; int name_width = options->stat_name_width; int graph_width = options->stat_graph_width; int count = options->stat_count; - int argcount = 1; + char *end; - if (!skip_prefix(arg, "--stat", &arg)) - BUG("stat option does not begin with --stat: %s", arg); - end = (char *)arg; + BUG_ON_OPT_NEG(unset); - switch (*arg) { - case '-': - if (skip_prefix(arg, "-width", &arg)) { - if (*arg == '=') - width = strtoul(arg + 1, &end, 10); - else if (!*arg && !av[1]) - die_want_option("--stat-width"); - else if (!*arg) { - width = strtoul(av[1], &end, 10); - argcount = 2; - } - } else if (skip_prefix(arg, "-name-width", &arg)) { - if (*arg == '=') - name_width = strtoul(arg + 1, &end, 10); - else if (!*arg && !av[1]) - die_want_option("--stat-name-width"); - else if (!*arg) { - name_width = strtoul(av[1], &end, 10); - argcount = 2; - } - } else if (skip_prefix(arg, "-graph-width", &arg)) { - if (*arg == '=') - graph_width = strtoul(arg + 1, &end, 10); - else if (!*arg && !av[1]) - die_want_option("--stat-graph-width"); - else if (!*arg) { - graph_width = strtoul(av[1], &end, 10); - argcount = 2; - } - } else if (skip_prefix(arg, "-count", &arg)) { - if (*arg == '=') - count = strtoul(arg + 1, &end, 10); - else if (!*arg && !av[1]) - die_want_option("--stat-count"); - else if (!*arg) { - count = strtoul(av[1], &end, 10); - argcount = 2; - } + if (!strcmp(opt->long_name, "stat")) { + if (value) { + width = strtoul(value, &end, 10); + if (*end == ',') + name_width = strtoul(end+1, &end, 10); + if (*end == ',') + count = strtoul(end+1, &end, 10); + if (*end) + return error(_("invalid --stat value: %s"), value); } - break; - case '=': - width = strtoul(arg+1, &end, 10); - if (*end == ',') - name_width = strtoul(end+1, &end, 10); - if (*end == ',') - count = strtoul(end+1, &end, 10); - } + } else if (!strcmp(opt->long_name, "stat-width")) { + width = strtoul(value, &end, 10); + if (*end) + return error(_("%s expects a numerical value"), + opt->long_name); + } else if (!strcmp(opt->long_name, "stat-name-width")) { + name_width = strtoul(value, &end, 10); + if (*end) + return error(_("%s expects a numerical value"), + opt->long_name); + } else if (!strcmp(opt->long_name, "stat-graph-width")) { + graph_width = strtoul(value, &end, 10); + if (*end) + return error(_("%s expects a numerical value"), + opt->long_name); + } else if (!strcmp(opt->long_name, "stat-count")) { + count = strtoul(value, &end, 10); + if (*end) + return error(_("%s expects a numerical value"), + opt->long_name); + } else + BUG("%s should not get here", opt->long_name); - /* Important! This checks all the error cases! */ - if (*end) - return 0; options->output_format |= DIFF_FORMAT_DIFFSTAT; options->stat_name_width = name_width; options->stat_graph_width = graph_width; options->stat_width = width; options->stat_count = count; - return argcount; + return 0; } static int parse_dirstat_opt(struct diff_options *options, const char *params) @@ -4808,14 +4788,6 @@ static int parse_dirstat_opt(struct diff_options *options, const char *params) 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, @@ -4926,6 +4898,534 @@ static int parse_objfind_opt(struct diff_options *opt, const char *arg) return 1; } +static int diff_opt_anchored(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); + ALLOC_GROW(options->anchors, options->anchors_nr + 1, + options->anchors_alloc); + options->anchors[options->anchors_nr++] = xstrdup(arg); + return 0; +} + +static int diff_opt_binary(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(arg); + enable_patch_output(&options->output_format); + options->flags.binary = 1; + return 0; +} + +static int diff_opt_break_rewrites(const struct option *opt, + const char *arg, int unset) +{ + int *break_opt = opt->value; + int opt1, opt2; + + BUG_ON_OPT_NEG(unset); + if (!arg) + arg = ""; + opt1 = parse_rename_score(&arg); + if (*arg == 0) + opt2 = 0; + else if (*arg != '/') + return error(_("%s expects <n>/<m> form"), opt->long_name); + else { + arg++; + opt2 = parse_rename_score(&arg); + } + if (*arg != 0) + return error(_("%s expects <n>/<m> form"), opt->long_name); + *break_opt = opt1 | (opt2 << 16); + return 0; +} + +static int diff_opt_char(const struct option *opt, + const char *arg, int unset) +{ + char *value = opt->value; + + BUG_ON_OPT_NEG(unset); + if (arg[1]) + return error(_("%s expects a character, got '%s'"), + opt->long_name, arg); + *value = arg[0]; + return 0; +} + +static int diff_opt_color_words(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->use_color = 1; + options->word_diff = DIFF_WORDS_COLOR; + options->word_regex = arg; + return 0; +} + +static int diff_opt_compact_summary(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_ARG(arg); + if (unset) { + options->flags.stat_with_summary = 0; + } else { + options->flags.stat_with_summary = 1; + options->output_format |= DIFF_FORMAT_DIFFSTAT; + } + return 0; +} + +static int diff_opt_diff_algorithm(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + long value = parse_algorithm_value(arg); + + BUG_ON_OPT_NEG(unset); + if (value < 0) + return error(_("option diff-algorithm accepts \"myers\", " + "\"minimal\", \"patience\" and \"histogram\"")); + + /* clear out previous settings */ + DIFF_XDL_CLR(options, NEED_MINIMAL); + options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; + options->xdl_opts |= value; + return 0; +} + +static int diff_opt_dirstat(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (!strcmp(opt->long_name, "cumulative")) { + if (arg) + BUG("how come --cumulative take a value?"); + arg = "cumulative"; + } else if (!strcmp(opt->long_name, "dirstat-by-file")) + parse_dirstat_opt(options, "files"); + parse_dirstat_opt(options, arg ? arg : ""); + return 0; +} + +static int diff_opt_find_copies(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (!arg) + arg = ""; + options->rename_score = parse_rename_score(&arg); + if (*arg != 0) + return error(_("invalid argument to %s"), opt->long_name); + + if (options->detect_rename == DIFF_DETECT_COPY) + options->flags.find_copies_harder = 1; + else + options->detect_rename = DIFF_DETECT_COPY; + + return 0; +} + +static int diff_opt_find_renames(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (!arg) + arg = ""; + options->rename_score = parse_rename_score(&arg); + if (*arg != 0) + return error(_("invalid argument to %s"), opt->long_name); + + options->detect_rename = DIFF_DETECT_RENAME; + return 0; +} + +static int diff_opt_follow(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_ARG(arg); + if (unset) { + options->flags.follow_renames = 0; + options->flags.default_follow_renames = 0; + } else { + options->flags.follow_renames = 1; + } + 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) +{ + struct diff_options *options = opt->value; + char *path; + + BUG_ON_OPT_NEG(unset); + path = prefix_filename(ctx->prefix, arg); + options->file = xfopen(path, "w"); + options->close_file = 1; + if (options->use_color != GIT_COLOR_ALWAYS) + options->use_color = GIT_COLOR_NEVER; + free(path); + return 0; +} + +static int diff_opt_patience(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + int i; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(arg); + options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); + /* + * Both --patience and --anchored use PATIENCE_DIFF + * internally, so remove any anchors previously + * specified. + */ + for (i = 0; i < options->anchors_nr; i++) + free(options->anchors[i]); + options->anchors_nr = 0; + return 0; +} + +static int diff_opt_relative(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->flags.relative_name = 1; + if (arg) + options->prefix = arg; + 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) +{ + struct diff_options *options = opt->value; + char *s; + + BUG_ON_OPT_NEG(unset); + + options->context = strtol(arg, &s, 10); + if (*s) + return error(_("%s expects a numerical value"), "--unified"); + enable_patch_output(&options->output_format); + + return 0; +} + +static int diff_opt_word_diff(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (arg) { + if (!strcmp(arg, "plain")) + options->word_diff = DIFF_WORDS_PLAIN; + else if (!strcmp(arg, "color")) { + options->use_color = 1; + options->word_diff = DIFF_WORDS_COLOR; + } + else if (!strcmp(arg, "porcelain")) + options->word_diff = DIFF_WORDS_PORCELAIN; + else if (!strcmp(arg, "none")) + options->word_diff = DIFF_WORDS_NONE; + else + return error(_("bad --word-diff argument: %s"), arg); + } else { + if (options->word_diff == DIFF_WORDS_NONE) + options->word_diff = DIFF_WORDS_PLAIN; + } + return 0; +} + +static int diff_opt_word_diff_regex(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (options->word_diff == DIFF_WORDS_NONE) + options->word_diff = DIFF_WORDS_PLAIN; + options->word_regex = arg; + return 0; +} + +static void prep_parse_options(struct diff_options *options) +{ + struct option parseopts[] = { + OPT_GROUP(N_("Diff output format options")), + OPT_BITOP('p', "patch", &options->output_format, + N_("generate patch"), + DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT), + OPT_BIT_F('s', "no-patch", &options->output_format, + N_("suppress diff output"), + DIFF_FORMAT_NO_OUTPUT, PARSE_OPT_NONEG), + OPT_BITOP('u', NULL, &options->output_format, + N_("generate patch"), + DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT), + OPT_CALLBACK_F('U', "unified", options, N_("<n>"), + N_("generate diffs with <n> lines context"), + PARSE_OPT_NONEG, diff_opt_unified), + OPT_BOOL('W', "function-context", &options->flags.funccontext, + N_("generate diffs with <n> lines context")), + OPT_BIT_F(0, "raw", &options->output_format, + N_("generate the diff in raw format"), + DIFF_FORMAT_RAW, PARSE_OPT_NONEG), + OPT_BITOP(0, "patch-with-raw", &options->output_format, + N_("synonym for '-p --raw'"), + DIFF_FORMAT_PATCH | DIFF_FORMAT_RAW, + DIFF_FORMAT_NO_OUTPUT), + OPT_BITOP(0, "patch-with-stat", &options->output_format, + N_("synonym for '-p --stat'"), + DIFF_FORMAT_PATCH | DIFF_FORMAT_DIFFSTAT, + DIFF_FORMAT_NO_OUTPUT), + OPT_BIT_F(0, "numstat", &options->output_format, + N_("machine friendly --stat"), + DIFF_FORMAT_NUMSTAT, PARSE_OPT_NONEG), + OPT_BIT_F(0, "shortstat", &options->output_format, + N_("output only the last line of --stat"), + DIFF_FORMAT_SHORTSTAT, PARSE_OPT_NONEG), + OPT_CALLBACK_F('X', "dirstat", options, N_("<param1,param2>..."), + N_("output the distribution of relative amount of changes for each sub-directory"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_dirstat), + OPT_CALLBACK_F(0, "cumulative", options, NULL, + N_("synonym for --dirstat=cumulative"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, + diff_opt_dirstat), + OPT_CALLBACK_F(0, "dirstat-by-file", options, N_("<param1,param2>..."), + N_("synonym for --dirstat=files,param1,param2..."), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_dirstat), + OPT_BIT_F(0, "check", &options->output_format, + N_("warn if changes introduce conflict markers or whitespace errors"), + DIFF_FORMAT_CHECKDIFF, PARSE_OPT_NONEG), + OPT_BIT_F(0, "summary", &options->output_format, + N_("condensed summary such as creations, renames and mode changes"), + DIFF_FORMAT_SUMMARY, PARSE_OPT_NONEG), + OPT_BIT_F(0, "name-only", &options->output_format, + N_("show only names of changed files"), + DIFF_FORMAT_NAME, PARSE_OPT_NONEG), + OPT_BIT_F(0, "name-status", &options->output_format, + N_("show only names and status of changed files"), + DIFF_FORMAT_NAME_STATUS, PARSE_OPT_NONEG), + OPT_CALLBACK_F(0, "stat", options, N_("<width>[,<name-width>[,<count>]]"), + N_("generate diffstat"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_stat), + OPT_CALLBACK_F(0, "stat-width", options, N_("<width>"), + N_("generate diffstat with a given width"), + PARSE_OPT_NONEG, diff_opt_stat), + OPT_CALLBACK_F(0, "stat-name-width", options, N_("<width>"), + N_("generate diffstat with a given name width"), + PARSE_OPT_NONEG, diff_opt_stat), + OPT_CALLBACK_F(0, "stat-graph-width", options, N_("<width>"), + N_("generate diffstat with a given graph width"), + PARSE_OPT_NONEG, diff_opt_stat), + OPT_CALLBACK_F(0, "stat-count", options, N_("<count>"), + N_("generate diffstat with limited lines"), + PARSE_OPT_NONEG, diff_opt_stat), + OPT_CALLBACK_F(0, "compact-summary", options, NULL, + N_("generate compact summary in diffstat"), + PARSE_OPT_NOARG, diff_opt_compact_summary), + OPT_CALLBACK_F(0, "binary", options, NULL, + N_("output a binary diff that can be applied"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_binary), + OPT_BOOL(0, "full-index", &options->flags.full_index, + 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, "output-indicator-new", + &options->output_indicators[OUTPUT_INDICATOR_NEW], + N_("<char>"), + N_("specify the character to indicate a new line instead of '+'"), + PARSE_OPT_NONEG, diff_opt_char), + OPT_CALLBACK_F(0, "output-indicator-old", + &options->output_indicators[OUTPUT_INDICATOR_OLD], + N_("<char>"), + N_("specify the character to indicate an old line instead of '-'"), + PARSE_OPT_NONEG, diff_opt_char), + OPT_CALLBACK_F(0, "output-indicator-context", + &options->output_indicators[OUTPUT_INDICATOR_CONTEXT], + N_("<char>"), + N_("specify the character to indicate a context instead of ' '"), + PARSE_OPT_NONEG, diff_opt_char), + + OPT_GROUP(N_("Diff rename options")), + OPT_CALLBACK_F('B', "break-rewrites", &options->break_opt, N_("<n>[/<m>]"), + N_("break complete rewrite changes into pairs of delete and create"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_break_rewrites), + OPT_CALLBACK_F('M', "find-renames", options, N_("<n>"), + N_("detect renames"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_find_renames), + OPT_SET_INT_F('D', "irreversible-delete", &options->irreversible_delete, + N_("omit the preimage for deletes"), + 1, PARSE_OPT_NONEG), + OPT_CALLBACK_F('C', "find-copies", options, N_("<n>"), + N_("detect copies"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_find_copies), + OPT_BOOL(0, "find-copies-harder", &options->flags.find_copies_harder, + N_("use unmodified files as source to find copies")), + OPT_SET_INT_F(0, "no-renames", &options->detect_rename, + N_("disable rename detection"), + 0, PARSE_OPT_NONEG), + OPT_BOOL(0, "rename-empty", &options->flags.rename_empty, + N_("use empty blobs as rename source")), + OPT_CALLBACK_F(0, "follow", options, NULL, + N_("continue listing the history of a file beyond renames"), + PARSE_OPT_NOARG, diff_opt_follow), + + OPT_GROUP(N_("Diff algorithm options")), + OPT_BIT(0, "minimal", &options->xdl_opts, + N_("produce the smallest possible diff"), + XDF_NEED_MINIMAL), + OPT_BIT_F('w', "ignore-all-space", &options->xdl_opts, + N_("ignore whitespace when comparing lines"), + XDF_IGNORE_WHITESPACE, PARSE_OPT_NONEG), + OPT_BIT_F('b', "ignore-space-change", &options->xdl_opts, + N_("ignore changes in amount of whitespace"), + XDF_IGNORE_WHITESPACE_CHANGE, PARSE_OPT_NONEG), + OPT_BIT_F(0, "ignore-space-at-eol", &options->xdl_opts, + N_("ignore changes in whitespace at EOL"), + XDF_IGNORE_WHITESPACE_AT_EOL, PARSE_OPT_NONEG), + OPT_BIT_F(0, "ignore-cr-at-eol", &options->xdl_opts, + N_("ignore carrier-return at the end of line"), + XDF_IGNORE_CR_AT_EOL, PARSE_OPT_NONEG), + OPT_BIT_F(0, "ignore-blank-lines", &options->xdl_opts, + N_("ignore changes whose lines are all blank"), + XDF_IGNORE_BLANK_LINES, PARSE_OPT_NONEG), + OPT_BIT(0, "indent-heuristic", &options->xdl_opts, + N_("heuristic to shift diff hunk boundaries for easy reading"), + XDF_INDENT_HEURISTIC), + OPT_CALLBACK_F(0, "patience", options, NULL, + N_("generate diff using the \"patience diff\" algorithm"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, + diff_opt_patience), + OPT_BITOP(0, "histogram", &options->xdl_opts, + N_("generate diff using the \"histogram diff\" algorithm"), + XDF_HISTOGRAM_DIFF, XDF_DIFF_ALGORITHM_MASK), + OPT_CALLBACK_F(0, "diff-algorithm", options, N_("<algorithm>"), + N_("choose a diff algorithm"), + PARSE_OPT_NONEG, diff_opt_diff_algorithm), + OPT_CALLBACK_F(0, "anchored", options, N_("<text>"), + N_("generate diff using the \"anchored diff\" algorithm"), + PARSE_OPT_NONEG, diff_opt_anchored), + OPT_CALLBACK_F(0, "word-diff", options, N_("<mode>"), + N_("show word diff, using <mode> to delimit changed words"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_word_diff), + OPT_CALLBACK_F(0, "word-diff-regex", options, N_("<regex>"), + N_("use <regex> to decide what a word is"), + PARSE_OPT_NONEG, diff_opt_word_diff_regex), + 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_GROUP(N_("Diff other options")), + OPT_CALLBACK_F(0, "relative", options, N_("<prefix>"), + N_("when run from subdir, exclude changes outside and show relative paths"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_relative), + OPT_BOOL('a', "text", &options->flags.text, + N_("treat all files as text")), + OPT_BOOL('R', NULL, &options->flags.reverse_diff, + N_("swap two inputs, reverse the diff")), + OPT_BOOL(0, "exit-code", &options->flags.exit_with_status, + 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), + { OPTION_CALLBACK, 0, "output", options, N_("<file>"), + N_("Output to a specific file"), + PARSE_OPT_NONEG, NULL, 0, diff_opt_output }, + + OPT_END() + }; + + ALLOC_ARRAY(options->parseopts, ARRAY_SIZE(parseopts)); + memcpy(options->parseopts, parseopts, sizeof(parseopts)); +} + int diff_opt_parse(struct diff_options *options, const char **av, int ac, const char *prefix) { @@ -4936,167 +5436,18 @@ int diff_opt_parse(struct diff_options *options, if (!prefix) prefix = ""; - /* Output format options */ - if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch") - || opt_arg(arg, 'U', "unified", &options->context)) - enable_patch_output(&options->output_format); - else if (!strcmp(arg, "--raw")) - options->output_format |= DIFF_FORMAT_RAW; - else if (!strcmp(arg, "--patch-with-raw")) { - enable_patch_output(&options->output_format); - options->output_format |= DIFF_FORMAT_RAW; - } else if (!strcmp(arg, "--numstat")) - options->output_format |= DIFF_FORMAT_NUMSTAT; - else if (!strcmp(arg, "--shortstat")) - options->output_format |= DIFF_FORMAT_SHORTSTAT; - else if (skip_prefix(arg, "-X", &arg) || - skip_to_optional_arg(arg, "--dirstat", &arg)) - return parse_dirstat_opt(options, arg); - else if (!strcmp(arg, "--cumulative")) - return parse_dirstat_opt(options, "cumulative"); - else if (skip_to_optional_arg(arg, "--dirstat-by-file", &arg)) { - parse_dirstat_opt(options, "files"); - return parse_dirstat_opt(options, arg); - } - else if (!strcmp(arg, "--check")) - options->output_format |= DIFF_FORMAT_CHECKDIFF; - else if (!strcmp(arg, "--summary")) - options->output_format |= DIFF_FORMAT_SUMMARY; - else if (!strcmp(arg, "--patch-with-stat")) { - enable_patch_output(&options->output_format); - options->output_format |= DIFF_FORMAT_DIFFSTAT; - } else if (!strcmp(arg, "--name-only")) - options->output_format |= DIFF_FORMAT_NAME; - else if (!strcmp(arg, "--name-status")) - options->output_format |= DIFF_FORMAT_NAME_STATUS; - else if (!strcmp(arg, "-s") || !strcmp(arg, "--no-patch")) - options->output_format |= DIFF_FORMAT_NO_OUTPUT; - else if (starts_with(arg, "--stat")) - /* --stat, --stat-width, --stat-name-width, or --stat-count */ - return stat_opt(options, av); - else if (!strcmp(arg, "--compact-summary")) { - options->flags.stat_with_summary = 1; - options->output_format |= DIFF_FORMAT_DIFFSTAT; - } else if (!strcmp(arg, "--no-compact-summary")) - options->flags.stat_with_summary = 0; - else if (skip_prefix(arg, "--output-indicator-new=", &arg)) - options->output_indicators[OUTPUT_INDICATOR_NEW] = arg[0]; - else if (skip_prefix(arg, "--output-indicator-old=", &arg)) - options->output_indicators[OUTPUT_INDICATOR_OLD] = arg[0]; - else if (skip_prefix(arg, "--output-indicator-context=", &arg)) - options->output_indicators[OUTPUT_INDICATOR_CONTEXT] = arg[0]; - - /* renames options */ - else if (starts_with(arg, "-B") || - skip_to_optional_arg(arg, "--break-rewrites", NULL)) { - if ((options->break_opt = diff_scoreopt_parse(arg)) == -1) - return error("invalid argument to -B: %s", arg+2); - } - else if (starts_with(arg, "-M") || - skip_to_optional_arg(arg, "--find-renames", NULL)) { - if ((options->rename_score = diff_scoreopt_parse(arg)) == -1) - return error("invalid argument to -M: %s", arg+2); - options->detect_rename = DIFF_DETECT_RENAME; - } - else if (!strcmp(arg, "-D") || !strcmp(arg, "--irreversible-delete")) { - options->irreversible_delete = 1; - } - else if (starts_with(arg, "-C") || - skip_to_optional_arg(arg, "--find-copies", NULL)) { - if (options->detect_rename == DIFF_DETECT_COPY) - options->flags.find_copies_harder = 1; - if ((options->rename_score = diff_scoreopt_parse(arg)) == -1) - return error("invalid argument to -C: %s", arg+2); - options->detect_rename = DIFF_DETECT_COPY; - } - else if (!strcmp(arg, "--no-renames")) - options->detect_rename = 0; - else if (!strcmp(arg, "--rename-empty")) - options->flags.rename_empty = 1; - else if (!strcmp(arg, "--no-rename-empty")) - options->flags.rename_empty = 0; - else if (skip_to_optional_arg_default(arg, "--relative", &arg, NULL)) { - options->flags.relative_name = 1; - if (arg) - options->prefix = arg; - } - - /* xdiff options */ - else if (!strcmp(arg, "--minimal")) - DIFF_XDL_SET(options, NEED_MINIMAL); - else if (!strcmp(arg, "--no-minimal")) - DIFF_XDL_CLR(options, NEED_MINIMAL); - else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space")) - DIFF_XDL_SET(options, IGNORE_WHITESPACE); - else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change")) - DIFF_XDL_SET(options, IGNORE_WHITESPACE_CHANGE); - else if (!strcmp(arg, "--ignore-space-at-eol")) - DIFF_XDL_SET(options, IGNORE_WHITESPACE_AT_EOL); - else if (!strcmp(arg, "--ignore-cr-at-eol")) - DIFF_XDL_SET(options, IGNORE_CR_AT_EOL); - else if (!strcmp(arg, "--ignore-blank-lines")) - DIFF_XDL_SET(options, IGNORE_BLANK_LINES); - else if (!strcmp(arg, "--indent-heuristic")) - DIFF_XDL_SET(options, INDENT_HEURISTIC); - else if (!strcmp(arg, "--no-indent-heuristic")) - DIFF_XDL_CLR(options, INDENT_HEURISTIC); - else if (!strcmp(arg, "--patience")) { - int i; - options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); - /* - * Both --patience and --anchored use PATIENCE_DIFF - * internally, so remove any anchors previously - * specified. - */ - for (i = 0; i < options->anchors_nr; i++) - free(options->anchors[i]); - options->anchors_nr = 0; - } else if (!strcmp(arg, "--histogram")) - options->xdl_opts = DIFF_WITH_ALG(options, HISTOGRAM_DIFF); - else if ((argcount = parse_long_opt("diff-algorithm", av, &optarg))) { - long value = parse_algorithm_value(optarg); - if (value < 0) - return error("option diff-algorithm accepts \"myers\", " - "\"minimal\", \"patience\" and \"histogram\""); - /* clear out previous settings */ - DIFF_XDL_CLR(options, NEED_MINIMAL); - options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; - options->xdl_opts |= value; - return argcount; - } else if (skip_prefix(arg, "--anchored=", &arg)) { - options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); - ALLOC_GROW(options->anchors, options->anchors_nr + 1, - options->anchors_alloc); - options->anchors[options->anchors_nr++] = xstrdup(arg); - } + ac = parse_options(ac, av, prefix, options->parseopts, NULL, + PARSE_OPT_KEEP_DASHDASH | + PARSE_OPT_KEEP_UNKNOWN | + PARSE_OPT_NO_INTERNAL_HELP | + PARSE_OPT_ONE_SHOT | + PARSE_OPT_STOP_AT_NON_OPTION); + + if (ac) + return ac; /* flags options */ - else if (!strcmp(arg, "--binary")) { - enable_patch_output(&options->output_format); - options->flags.binary = 1; - } - else if (!strcmp(arg, "--full-index")) - options->flags.full_index = 1; - else if (!strcmp(arg, "-a") || !strcmp(arg, "--text")) - options->flags.text = 1; - else if (!strcmp(arg, "-R")) - options->flags.reverse_diff = 1; - else if (!strcmp(arg, "--find-copies-harder")) - options->flags.find_copies_harder = 1; - else if (!strcmp(arg, "--follow")) - options->flags.follow_renames = 1; - else if (!strcmp(arg, "--no-follow")) { - options->flags.follow_renames = 0; - options->flags.default_follow_renames = 0; - } else if (skip_to_optional_arg_default(arg, "--color", &arg, "always")) { - int value = git_config_colorbool(NULL, arg); - if (value < 0) - return error("option `color' expects \"always\", \"auto\", or \"never\""); - options->use_color = value; - } - else if (!strcmp(arg, "--no-color")) - options->use_color = 0; - else if (!strcmp(arg, "--color-moved")) { + if (!strcmp(arg, "--color-moved")) { if (diff_color_moved_default) options->color_moved = diff_color_moved_default; if (options->color_moved == COLOR_MOVED_NO) @@ -5115,53 +5466,7 @@ int diff_opt_parse(struct diff_options *options, if (cm & COLOR_MOVED_WS_ERROR) return -1; options->color_moved_ws_handling = cm; - } else if (skip_to_optional_arg_default(arg, "--color-words", &options->word_regex, NULL)) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (!strcmp(arg, "--word-diff")) { - if (options->word_diff == DIFF_WORDS_NONE) - options->word_diff = DIFF_WORDS_PLAIN; - } - else if (skip_prefix(arg, "--word-diff=", &arg)) { - if (!strcmp(arg, "plain")) - options->word_diff = DIFF_WORDS_PLAIN; - else if (!strcmp(arg, "color")) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (!strcmp(arg, "porcelain")) - options->word_diff = DIFF_WORDS_PORCELAIN; - else if (!strcmp(arg, "none")) - options->word_diff = DIFF_WORDS_NONE; - else - die("bad --word-diff argument: %s", arg); - } - else if ((argcount = parse_long_opt("word-diff-regex", av, &optarg))) { - if (options->word_diff == DIFF_WORDS_NONE) - options->word_diff = DIFF_WORDS_PLAIN; - options->word_regex = optarg; - return argcount; - } - else if (!strcmp(arg, "--exit-code")) - options->flags.exit_with_status = 1; - else if (!strcmp(arg, "--quiet")) - options->flags.quick = 1; - 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)) + } 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; @@ -5230,21 +5535,7 @@ int diff_opt_parse(struct diff_options *options, else if (opt_arg(arg, '\0', "inter-hunk-context", &options->interhunkcontext)) ; - else if (!strcmp(arg, "-W")) - options->flags.funccontext = 1; - else if (!strcmp(arg, "--function-context")) - options->flags.funccontext = 1; - else if (!strcmp(arg, "--no-function-context")) - options->flags.funccontext = 0; - else if ((argcount = parse_long_opt("output", av, &optarg))) { - char *path = prefix_filename(prefix, optarg); - options->file = xfopen(path, "w"); - options->close_file = 1; - if (options->use_color != GIT_COLOR_ALWAYS) - options->use_color = GIT_COLOR_NEVER; - free(path); - return argcount; - } else + else return 0; return 1; } @@ -5285,47 +5576,6 @@ int parse_rename_score(const char **cp_p) return (int)((num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale)); } -static int diff_scoreopt_parse(const char *opt) -{ - int opt1, opt2, cmd; - - if (*opt++ != '-') - return -1; - cmd = *opt++; - if (cmd == '-') { - /* convert the long-form arguments into short-form versions */ - if (skip_prefix(opt, "break-rewrites", &opt)) { - if (*opt == 0 || *opt++ == '=') - cmd = 'B'; - } else if (skip_prefix(opt, "find-copies", &opt)) { - if (*opt == 0 || *opt++ == '=') - cmd = 'C'; - } else if (skip_prefix(opt, "find-renames", &opt)) { - if (*opt == 0 || *opt++ == '=') - cmd = 'M'; - } - } - if (cmd != 'M' && cmd != 'C' && cmd != 'B') - return -1; /* that is not a -M, -C, or -B option */ - - opt1 = parse_rename_score(&opt); - if (cmd != 'B') - opt2 = 0; - else { - if (*opt == 0) - opt2 = 0; - else if (*opt != '/') - return -1; /* we expect -B80/99 or -B80 */ - else { - opt++; - opt2 = parse_rename_score(&opt); - } - } - if (*opt != 0) - return -1; - return opt1 | (opt2 << 16); -} - struct diff_queue_struct diff_queued_diff; void diff_q(struct diff_queue_struct *queue, struct diff_filepair *dp) @@ -6224,7 +6474,7 @@ static int diffnamecmp(const void *a_, const void *b_) return strcmp(name_a, name_b); } -void diffcore_fix_diff_index(struct diff_options *options) +void diffcore_fix_diff_index(void) { struct diff_queue_struct *q = &diff_queued_diff; QSORT(q->queue, q->nr, diffnamecmp); |