diff options
Diffstat (limited to 'diff.c')
-rw-r--r-- | diff.c | 280 |
1 files changed, 198 insertions, 82 deletions
@@ -30,6 +30,7 @@ static int diff_use_color_default = -1; static int diff_context_default = 3; static const char *diff_word_regex_cfg; static const char *external_diff_cmd_cfg; +static const char *diff_order_file_cfg; int diff_auto_refresh_index = 1; static int diff_mnemonic_prefix; static int diff_no_prefix; @@ -201,6 +202,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb) return git_config_string(&external_diff_cmd_cfg, var, value); if (!strcmp(var, "diff.wordregex")) return git_config_string(&diff_word_regex_cfg, var, value); + if (!strcmp(var, "diff.orderfile")) + return git_config_pathname(&diff_order_file_cfg, var, value); if (!strcmp(var, "diff.ignoresubmodules")) handle_ignore_submodules_arg(&default_diff_options, value); @@ -235,7 +238,7 @@ int git_diff_basic_config(const char *var, const char *value, void *cb) if (userdiff_config(var, value) < 0) return -1; - if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) { + if (starts_with(var, "diff.color.") || starts_with(var, "color.diff.")) { int slot = parse_diff_color_slot(var, 11); if (slot < 0) return 0; @@ -264,7 +267,7 @@ int git_diff_basic_config(const char *var, const char *value, void *cb) return 0; } - if (!prefixcmp(var, "submodule.")) + if (starts_with(var, "submodule.")) return parse_submodule_config_option(var, value); return git_default_config(var, value, cb); @@ -669,7 +672,7 @@ static void emit_rewrite_diff(const char *name_a, memset(&ecbdata, 0, sizeof(ecbdata)); ecbdata.color_diff = want_color(o->use_color); ecbdata.found_changesp = &o->found_changes; - ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a); + ecbdata.ws_rule = whitespace_rule(name_b); ecbdata.opt = o; if (ecbdata.ws_rule & WS_BLANK_AT_EOF) { mmfile_t mf1, mf2; @@ -1215,7 +1218,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) diff_words_append(line, len, &ecbdata->diff_words->plus); return; - } else if (!prefixcmp(line, "\\ ")) { + } else if (starts_with(line, "\\ ")) { /* * Eat the "no newline at eof" marker as if we * saw a "+" or "-" line with nothing on it, @@ -2252,7 +2255,7 @@ static void builtin_diff(const char *name_a, (!two->mode || S_ISGITLINK(two->mode))) { const char *del = diff_get_color_opt(o, DIFF_FILE_OLD); const char *add = diff_get_color_opt(o, DIFF_FILE_NEW); - show_submodule_summary(o->file, one ? one->path : two->path, + show_submodule_summary(o->file, one->path ? one->path : two->path, line_prefix, one->sha1, two->sha1, two->dirty_submodule, meta, del, add, reset); @@ -2372,7 +2375,7 @@ static void builtin_diff(const char *name_a, ecbdata.label_path = lbl; ecbdata.color_diff = want_color(o->use_color); ecbdata.found_changesp = &o->found_changes; - ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a); + ecbdata.ws_rule = whitespace_rule(name_b); if (ecbdata.ws_rule & WS_BLANK_AT_EOF) check_blank_at_eof(&mf1, &mf2, &ecbdata); ecbdata.opt = o; @@ -2387,9 +2390,9 @@ static void builtin_diff(const char *name_a, xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags); if (!diffopts) ; - else if (!prefixcmp(diffopts, "--unified=")) + else if (starts_with(diffopts, "--unified=")) xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10); - else if (!prefixcmp(diffopts, "-u")) + else if (starts_with(diffopts, "-u")) xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10); if (o->word_diff) init_diff_words_data(&ecbdata, o, one, two); @@ -2900,11 +2903,16 @@ static void run_external_diff(const char *pgm, struct diff_filespec *one, struct diff_filespec *two, const char *xfrm_msg, - int complete_rewrite) + int complete_rewrite, + struct diff_options *o) { const char *spawn_arg[10]; int retval; const char **arg = &spawn_arg[0]; + struct diff_queue_struct *q = &diff_queued_diff; + const char *env[3] = { NULL }; + char env_counter[50]; + char env_total[50]; if (one && two) { struct diff_tempfile *temp_one, *temp_two; @@ -2929,7 +2937,14 @@ static void run_external_diff(const char *pgm, } *arg = NULL; fflush(NULL); - retval = run_command_v_opt(spawn_arg, RUN_USING_SHELL); + + env[0] = env_counter; + snprintf(env_counter, sizeof(env_counter), "GIT_DIFF_PATH_COUNTER=%d", + ++o->diff_path_counter); + env[1] = env_total; + snprintf(env_total, sizeof(env_total), "GIT_DIFF_PATH_TOTAL=%d", q->nr); + + retval = run_command_v_opt_cd_env(spawn_arg, RUN_USING_SHELL, NULL, env); remove_tempfile(); if (retval) { fprintf(stderr, "external diff died, stopping at %s.\n", name); @@ -3043,7 +3058,7 @@ static void run_diff_cmd(const char *pgm, if (pgm) { run_external_diff(pgm, name, other, one, two, xfrm_msg, - complete_rewrite); + complete_rewrite, o); return; } if (one && two) @@ -3208,6 +3223,8 @@ void diff_setup(struct diff_options *options) options->detect_rename = diff_detect_rename_default; options->xdl_opts |= diff_algorithm; + options->orderfile = diff_order_file_cfg; + if (diff_no_prefix) { options->a_prefix = options->b_prefix = ""; } else if (!diff_mnemonic_prefix) { @@ -3220,6 +3237,9 @@ void diff_setup_done(struct diff_options *options) { int count = 0; + if (options->set_default) + options->set_default(options); + if (options->output_format & DIFF_FORMAT_NAME) count++; if (options->output_format & DIFF_FORMAT_NAME_STATUS) @@ -3315,6 +3335,8 @@ void diff_setup_done(struct diff_options *options) options->output_format = DIFF_FORMAT_NO_OUTPUT; DIFF_OPT_SET(options, EXIT_WITH_STATUS); } + + options->diff_path_counter = 0; } static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) @@ -3389,10 +3411,10 @@ int parse_long_opt(const char *opt, const char **argv, if (arg[0] != '-' || arg[1] != '-') return 0; arg += strlen("--"); - if (prefixcmp(arg, opt)) + if (!starts_with(arg, opt)) return 0; arg += strlen(opt); - if (*arg == '=') { /* sticked form: --option=value */ + if (*arg == '=') { /* stuck form: --option=value */ *optarg = arg + 1; return 1; } @@ -3420,7 +3442,7 @@ static int stat_opt(struct diff_options *options, const char **av) switch (*arg) { case '-': - if (!prefixcmp(arg, "-width")) { + if (starts_with(arg, "-width")) { arg += strlen("-width"); if (*arg == '=') width = strtoul(arg + 1, &end, 10); @@ -3430,7 +3452,7 @@ static int stat_opt(struct diff_options *options, const char **av) width = strtoul(av[1], &end, 10); argcount = 2; } - } else if (!prefixcmp(arg, "-name-width")) { + } else if (starts_with(arg, "-name-width")) { arg += strlen("-name-width"); if (*arg == '=') name_width = strtoul(arg + 1, &end, 10); @@ -3440,7 +3462,7 @@ static int stat_opt(struct diff_options *options, const char **av) name_width = strtoul(av[1], &end, 10); argcount = 2; } - } else if (!prefixcmp(arg, "-graph-width")) { + } else if (starts_with(arg, "-graph-width")) { arg += strlen("-graph-width"); if (*arg == '=') graph_width = strtoul(arg + 1, &end, 10); @@ -3450,7 +3472,7 @@ static int stat_opt(struct diff_options *options, const char **av) graph_width = strtoul(av[1], &end, 10); argcount = 2; } - } else if (!prefixcmp(arg, "-count")) { + } else if (starts_with(arg, "-count")) { arg += strlen("-count"); if (*arg == '=') count = strtoul(arg + 1, &end, 10); @@ -3504,6 +3526,80 @@ static int parse_submodule_opt(struct diff_options *options, const char *value) return 1; } +static const char diff_status_letters[] = { + DIFF_STATUS_ADDED, + DIFF_STATUS_COPIED, + DIFF_STATUS_DELETED, + DIFF_STATUS_MODIFIED, + DIFF_STATUS_RENAMED, + DIFF_STATUS_TYPE_CHANGED, + DIFF_STATUS_UNKNOWN, + DIFF_STATUS_UNMERGED, + DIFF_STATUS_FILTER_AON, + DIFF_STATUS_FILTER_BROKEN, + '\0', +}; + +static unsigned int filter_bit['Z' + 1]; + +static void prepare_filter_bits(void) +{ + int i; + + if (!filter_bit[DIFF_STATUS_ADDED]) { + for (i = 0; diff_status_letters[i]; i++) + filter_bit[(int) diff_status_letters[i]] = (1 << i); + } +} + +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) +{ + int i, optch; + + prepare_filter_bits(); + + /* + * If there is a negation e.g. 'd' in the input, and we haven't + * initialized the filter field with another --diff-filter, start + * from full set of bits, except for AON. + */ + if (!opt->filter) { + for (i = 0; (optch = optarg[i]) != '\0'; i++) { + if (optch < 'a' || 'z' < optch) + continue; + opt->filter = (1 << (ARRAY_SIZE(diff_status_letters) - 1)) - 1; + opt->filter &= ~filter_bit[DIFF_STATUS_FILTER_AON]; + break; + } + } + + for (i = 0; (optch = optarg[i]) != '\0'; i++) { + unsigned int bit; + int negate; + + if ('a' <= optch && optch <= 'z') { + negate = 1; + optch = toupper(optch); + } else { + negate = 0; + } + + bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0; + if (!bit) + return optarg[i]; + if (negate) + opt->filter &= ~bit; + else + opt->filter |= bit; + } + return 0; +} + static void enable_patch_output(int *fmt) { *fmt &= ~DIFF_FORMAT_NO_OUTPUT; *fmt |= DIFF_FORMAT_PATCH; @@ -3530,15 +3626,15 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) options->output_format |= DIFF_FORMAT_SHORTSTAT; else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat")) return parse_dirstat_opt(options, ""); - else if (!prefixcmp(arg, "-X")) + else if (starts_with(arg, "-X")) return parse_dirstat_opt(options, arg + 2); - else if (!prefixcmp(arg, "--dirstat=")) + else if (starts_with(arg, "--dirstat=")) return parse_dirstat_opt(options, arg + 10); else if (!strcmp(arg, "--cumulative")) return parse_dirstat_opt(options, "cumulative"); else if (!strcmp(arg, "--dirstat-by-file")) return parse_dirstat_opt(options, "files"); - else if (!prefixcmp(arg, "--dirstat-by-file=")) { + else if (starts_with(arg, "--dirstat-by-file=")) { parse_dirstat_opt(options, "files"); return parse_dirstat_opt(options, arg + 18); } @@ -3555,17 +3651,17 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) 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 (!prefixcmp(arg, "--stat")) + else if (starts_with(arg, "--stat")) /* --stat, --stat-width, --stat-name-width, or --stat-count */ return stat_opt(options, av); /* renames options */ - else if (!prefixcmp(arg, "-B") || !prefixcmp(arg, "--break-rewrites=") || + else if (starts_with(arg, "-B") || starts_with(arg, "--break-rewrites=") || !strcmp(arg, "--break-rewrites")) { if ((options->break_opt = diff_scoreopt_parse(arg)) == -1) return error("invalid argument to -B: %s", arg+2); } - else if (!prefixcmp(arg, "-M") || !prefixcmp(arg, "--find-renames=") || + else if (starts_with(arg, "-M") || starts_with(arg, "--find-renames=") || !strcmp(arg, "--find-renames")) { if ((options->rename_score = diff_scoreopt_parse(arg)) == -1) return error("invalid argument to -M: %s", arg+2); @@ -3574,7 +3670,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) else if (!strcmp(arg, "-D") || !strcmp(arg, "--irreversible-delete")) { options->irreversible_delete = 1; } - else if (!prefixcmp(arg, "-C") || !prefixcmp(arg, "--find-copies=") || + else if (starts_with(arg, "-C") || starts_with(arg, "--find-copies=") || !strcmp(arg, "--find-copies")) { if (options->detect_rename == DIFF_DETECT_COPY) DIFF_OPT_SET(options, FIND_COPIES_HARDER); @@ -3590,7 +3686,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) DIFF_OPT_CLR(options, RENAME_EMPTY); else if (!strcmp(arg, "--relative")) DIFF_OPT_SET(options, RELATIVE_NAME); - else if (!prefixcmp(arg, "--relative=")) { + else if (starts_with(arg, "--relative=")) { DIFF_OPT_SET(options, RELATIVE_NAME); options->prefix = arg + 11; } @@ -3643,7 +3739,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) DIFF_OPT_CLR(options, FOLLOW_RENAMES); else if (!strcmp(arg, "--color")) options->use_color = 1; - else if (!prefixcmp(arg, "--color=")) { + else if (starts_with(arg, "--color=")) { int value = git_config_colorbool(NULL, arg+8); if (value < 0) return error("option `color' expects \"always\", \"auto\", or \"never\""); @@ -3655,7 +3751,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) options->use_color = 1; options->word_diff = DIFF_WORDS_COLOR; } - else if (!prefixcmp(arg, "--color-words=")) { + else if (starts_with(arg, "--color-words=")) { options->use_color = 1; options->word_diff = DIFF_WORDS_COLOR; options->word_regex = arg + 14; @@ -3664,7 +3760,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) if (options->word_diff == DIFF_WORDS_NONE) options->word_diff = DIFF_WORDS_PLAIN; } - else if (!prefixcmp(arg, "--word-diff=")) { + else if (starts_with(arg, "--word-diff=")) { const char *type = arg + 12; if (!strcmp(type, "plain")) options->word_diff = DIFF_WORDS_PLAIN; @@ -3700,12 +3796,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) else if (!strcmp(arg, "--ignore-submodules")) { DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG); handle_ignore_submodules_arg(options, "all"); - } else if (!prefixcmp(arg, "--ignore-submodules=")) { + } else if (starts_with(arg, "--ignore-submodules=")) { DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG); handle_ignore_submodules_arg(options, arg + 20); } else if (!strcmp(arg, "--submodule")) DIFF_OPT_SET(options, SUBMODULE_LOG); - else if (!prefixcmp(arg, "--submodule=")) + else if (starts_with(arg, "--submodule=")) return parse_submodule_opt(options, arg + 12); /* misc options */ @@ -3733,12 +3829,15 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) return argcount; } else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) { - options->filter = 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, "--abbrev")) options->abbrev = DEFAULT_ABBREV; - else if (!prefixcmp(arg, "--abbrev=")) { + else if (starts_with(arg, "--abbrev=")) { options->abbrev = strtoul(arg + 9, NULL, 10); if (options->abbrev < MINIMUM_ABBREV) options->abbrev = MINIMUM_ABBREV; @@ -3820,15 +3919,15 @@ static int diff_scoreopt_parse(const char *opt) cmd = *opt++; if (cmd == '-') { /* convert the long-form arguments into short-form versions */ - if (!prefixcmp(opt, "break-rewrites")) { + if (starts_with(opt, "break-rewrites")) { opt += strlen("break-rewrites"); if (*opt == 0 || *opt++ == '=') cmd = 'B'; - } else if (!prefixcmp(opt, "find-copies")) { + } else if (starts_with(opt, "find-copies")) { opt += strlen("find-copies"); if (*opt == 0 || *opt++ == '=') cmd = 'C'; - } else if (!prefixcmp(opt, "find-renames")) { + } else if (starts_with(opt, "find-renames")) { opt += strlen("find-renames"); if (*opt == 0 || *opt++ == '=') cmd = 'M'; @@ -4033,9 +4132,9 @@ void diff_debug_filespec(struct diff_filespec *s, int x, const char *one) DIFF_FILE_VALID(s) ? "valid" : "invalid", s->mode, s->sha1_valid ? sha1_to_hex(s->sha1) : ""); - fprintf(stderr, "queue[%d] %s size %lu flags %d\n", + fprintf(stderr, "queue[%d] %s size %lu\n", x, one ? one : "", - s->size, s->xfrm_flags); + s->size); } void diff_debug_filepair(const struct diff_filepair *p, int i) @@ -4238,7 +4337,7 @@ static void patch_id_consume(void *priv, char *line, unsigned long len) int new_len; /* Ignore line numbers when computing the SHA1 of the patch */ - if (!prefixcmp(line, "@@ -")) + if (starts_with(line, "@@ -")) return; new_len = remove_space(line, len); @@ -4525,27 +4624,32 @@ free_queue: } } -static void diffcore_apply_filter(const char *filter) +static int match_filter(const struct diff_options *options, const struct diff_filepair *p) +{ + return (((p->status == DIFF_STATUS_MODIFIED) && + ((p->score && + filter_bit_tst(DIFF_STATUS_FILTER_BROKEN, options)) || + (!p->score && + filter_bit_tst(DIFF_STATUS_MODIFIED, options)))) || + ((p->status != DIFF_STATUS_MODIFIED) && + filter_bit_tst(p->status, options))); +} + +static void diffcore_apply_filter(struct diff_options *options) { int i; struct diff_queue_struct *q = &diff_queued_diff; struct diff_queue_struct outq; + DIFF_QUEUE_CLEAR(&outq); - if (!filter) + if (!options->filter) return; - if (strchr(filter, DIFF_STATUS_FILTER_AON)) { + if (filter_bit_tst(DIFF_STATUS_FILTER_AON, options)) { int found; for (i = found = 0; !found && i < q->nr; i++) { - struct diff_filepair *p = q->queue[i]; - if (((p->status == DIFF_STATUS_MODIFIED) && - ((p->score && - strchr(filter, DIFF_STATUS_FILTER_BROKEN)) || - (!p->score && - strchr(filter, DIFF_STATUS_MODIFIED)))) || - ((p->status != DIFF_STATUS_MODIFIED) && - strchr(filter, p->status))) + if (match_filter(options, q->queue[i])) found++; } if (found) @@ -4563,14 +4667,7 @@ static void diffcore_apply_filter(const char *filter) /* Only the matching ones */ for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; - - if (((p->status == DIFF_STATUS_MODIFIED) && - ((p->score && - strchr(filter, DIFF_STATUS_FILTER_BROKEN)) || - (!p->score && - strchr(filter, DIFF_STATUS_MODIFIED)))) || - ((p->status != DIFF_STATUS_MODIFIED) && - strchr(filter, p->status))) + if (match_filter(options, p)) diff_q(&outq, p); else diff_free_filepair(p); @@ -4593,6 +4690,38 @@ static int diff_filespec_is_identical(struct diff_filespec *one, return !memcmp(one->data, two->data, one->size); } +static int diff_filespec_check_stat_unmatch(struct diff_filepair *p) +{ + if (p->done_skip_stat_unmatch) + return p->skip_stat_unmatch_result; + + p->done_skip_stat_unmatch = 1; + p->skip_stat_unmatch_result = 0; + /* + * 1. Entries that come from stat info dirtiness + * always have both sides (iow, not create/delete), + * one side of the object name is unknown, with + * the same mode and size. Keep the ones that + * do not match these criteria. They have real + * differences. + * + * 2. At this point, the file is known to be modified, + * with the same mode and size, and the object + * name of one side is unknown. Need to inspect + * the identical contents. + */ + if (!DIFF_FILE_VALID(p->one) || /* (1) */ + !DIFF_FILE_VALID(p->two) || + (p->one->sha1_valid && p->two->sha1_valid) || + (p->one->mode != p->two->mode) || + diff_populate_filespec(p->one, 1) || + diff_populate_filespec(p->two, 1) || + (p->one->size != p->two->size) || + !diff_filespec_is_identical(p->one, p->two)) /* (2) */ + p->skip_stat_unmatch_result = 1; + return p->skip_stat_unmatch_result; +} + static void diffcore_skip_stat_unmatch(struct diff_options *diffopt) { int i; @@ -4603,27 +4732,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt) for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; - /* - * 1. Entries that come from stat info dirtiness - * always have both sides (iow, not create/delete), - * one side of the object name is unknown, with - * the same mode and size. Keep the ones that - * do not match these criteria. They have real - * differences. - * - * 2. At this point, the file is known to be modified, - * with the same mode and size, and the object - * name of one side is unknown. Need to inspect - * the identical contents. - */ - if (!DIFF_FILE_VALID(p->one) || /* (1) */ - !DIFF_FILE_VALID(p->two) || - (p->one->sha1_valid && p->two->sha1_valid) || - (p->one->mode != p->two->mode) || - diff_populate_filespec(p->one, 1) || - diff_populate_filespec(p->two, 1) || - (p->one->size != p->two->size) || - !diff_filespec_is_identical(p->one, p->two)) /* (2) */ + if (diff_filespec_check_stat_unmatch(p)) diff_q(&outq, p); else { /* @@ -4677,7 +4786,7 @@ void diffcore_std(struct diff_options *options) if (!options->found_follow) /* See try_to_follow_renames() in tree-diff.c */ diff_resolve_rename_copy(); - diffcore_apply_filter(options->filter); + diffcore_apply_filter(options); if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) DIFF_OPT_SET(options, HAS_CHANGES); @@ -4786,6 +4895,7 @@ void diff_change(struct diff_options *options, unsigned old_dirty_submodule, unsigned new_dirty_submodule) { struct diff_filespec *one, *two; + struct diff_filepair *p; if (S_ISGITLINK(old_mode) && S_ISGITLINK(new_mode) && is_submodule_ignored(concatpath, options)) @@ -4812,10 +4922,16 @@ void diff_change(struct diff_options *options, fill_filespec(two, new_sha1, new_sha1_valid, new_mode); one->dirty_submodule = old_dirty_submodule; two->dirty_submodule = new_dirty_submodule; + p = diff_queue(&diff_queued_diff, one, two); - diff_queue(&diff_queued_diff, one, two); - if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) - DIFF_OPT_SET(options, HAS_CHANGES); + if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) + return; + + if (DIFF_OPT_TST(options, QUICK) && options->skip_stat_unmatch && + !diff_filespec_check_stat_unmatch(p)) + return; + + DIFF_OPT_SET(options, HAS_CHANGES); } struct diff_filepair *diff_unmerge(struct diff_options *options, const char *path) |