From: Junio C Hamano Date: Tue, 16 Apr 2019 10:28:03 +0000 (+0900) Subject: Merge branch 'nd/diff-parseopt-3' X-Git-Tag: v2.22.0-rc0~119 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/8a9a837a639cb4ef4c0b84c277aec2c9eb7ec58d?hp=-c Merge branch 'nd/diff-parseopt-3' Third batch to teach the diff machinery to use the parse-options API. * nd/diff-parseopt-3: diff-parseopt: convert --submodule diff-parseopt: convert --ignore-submodules diff-parseopt: convert --textconv diff-parseopt: convert --ext-diff diff-parseopt: convert --quiet diff-parseopt: convert --exit-code diff-parseopt: convert --color-words diff-parseopt: convert --word-diff-regex diff-parseopt: convert --word-diff diff-parseopt: convert --[no-]color diff-parseopt: convert --[no-]follow diff-parseopt: convert -R diff-parseopt: convert -a|--text diff-parseopt: convert --full-index diff-parseopt: convert --binary diff-parseopt: convert --anchored diff-parseopt: convert --diff-algorithm diff-parseopt: convert --histogram diff-parseopt: convert --patience diff-parseopt: convert --[no-]indent-heuristic --- 8a9a837a639cb4ef4c0b84c277aec2c9eb7ec58d diff --combined Documentation/diff-options.txt index 5ebc56867b,6810c94fea..09faee3b44 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@@ -310,12 -310,8 +310,12 @@@ dimmed-zebra: `dimmed_zebra` is a deprecated synonym. -- +--no-color-moved:: + Turn off move detection. This can be used to override configuration + settings. It is the same as `--color-moved=no`. + --color-moved-ws=:: - This configures how white spaces are ignored when performing the + This configures how whitespace is ignored when performing the move detection for `--color-moved`. ifdef::git-diff[] It can be set by the `diff.colorMovedWS` configuration setting. @@@ -323,8 -319,6 +323,8 @@@ endif::git-diff[ These modes can be given as a comma separated list: + -- +no:: + Do not ignore whitespace when performing move detection. ignore-space-at-eol:: Ignore changes in whitespace at EOL. ignore-space-change:: @@@ -335,17 -329,12 +335,17 @@@ ignore-all-space: Ignore whitespace when comparing lines. This ignores differences even if one line has whitespace where the other line has none. allow-indentation-change:: - Initially ignore any white spaces in the move detection, then + Initially ignore any whitespace in the move detection, then group the moved code blocks only into a block if the change in whitespace is the same per line. This is incompatible with the other modes. -- +--no-color-moved-ws:: + Do not ignore whitespace when performing move detection. This can be + used to override configuration settings. It is the same as + `--color-moved-ws=no`. + --word-diff[=]:: Show a word diff, using the to delimit changed words. By default, words are delimited by whitespace; see @@@ -436,7 -425,7 +436,7 @@@ endif::git-format-patch[ --binary:: In addition to `--full-index`, output a binary diff that - can be applied with `git-apply`. + can be applied with `git-apply`. Implies `--patch`. --abbrev[=]:: Instead of showing the full 40-byte hexadecimal object diff --combined diff.c index ec5c095199,ce118bb326..6dfad79f1d --- a/diff.c +++ b/diff.c @@@ -174,10 -174,6 +174,10 @@@ static int parse_submodule_params(struc 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; @@@ -204,10 -200,6 +204,10 @@@ long parse_algorithm_value(const char * 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; } @@@ -308,9 -300,7 +308,9 @@@ static unsigned parse_color_moved_ws(co strbuf_addstr(&sb, i->string); strbuf_trim(&sb); - if (!strcmp(sb.buf, "ignore-space-change")) + if (!strcmp(sb.buf, "no")) + ret = 0; + else if (!strcmp(sb.buf, "ignore-space-change")) ret |= XDF_IGNORE_WHITESPACE_CHANGE; else if (!strcmp(sb.buf, "ignore-space-at-eol")) ret |= XDF_IGNORE_WHITESPACE_AT_EOL; @@@ -328,7 -318,7 +328,7 @@@ if ((ret & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) && (ret & XDF_WHITESPACE_FLAGS)) { - error(_("color-moved-ws: allow-indentation-change cannot be combined with other white space modes")); + error(_("color-moved-ws: allow-indentation-change cannot be combined with other whitespace modes")); ret |= COLOR_MOVED_WS_ERROR; } @@@ -499,7 -489,7 +499,7 @@@ static const char *external_diff(void if (done_preparing) return external_diff_cmd; - external_diff_cmd = getenv("GIT_EXTERNAL_DIFF"); + external_diff_cmd = xstrdup_or_null(getenv("GIT_EXTERNAL_DIFF")); if (!external_diff_cmd) external_diff_cmd = external_diff_cmd_cfg; done_preparing = 1; @@@ -760,8 -750,6 +760,8 @@@ struct emitted_diff_symbol const char *line; int len; int flags; + int indent_off; /* Offset to first non-whitespace character */ + int indent_width; /* The visual width of the indentation */ enum diff_symbol s; }; #define EMITTED_DIFF_SYMBOL_INIT {NULL} @@@ -792,85 -780,44 +792,85 @@@ struct moved_entry struct moved_entry *next_line; }; -/** - * The struct ws_delta holds white space differences between moved lines, i.e. - * between '+' and '-' lines that have been detected to be a move. - * The string contains the difference in leading white spaces, before the - * rest of the line is compared using the white space config for move - * coloring. The current_longer indicates if the first string in the - * comparision is longer than the second. - */ -struct ws_delta { - char *string; - unsigned int current_longer : 1; -}; -#define WS_DELTA_INIT { NULL, 0 } - struct moved_block { struct moved_entry *match; - struct ws_delta wsd; + int wsd; /* The whitespace delta of this block */ }; static void moved_block_clear(struct moved_block *b) { - FREE_AND_NULL(b->wsd.string); - b->match = NULL; + memset(b, 0, sizeof(*b)); } -static int compute_ws_delta(const struct emitted_diff_symbol *a, - const struct emitted_diff_symbol *b, - struct ws_delta *out) +#define INDENT_BLANKLINE INT_MIN + +static void fill_es_indent_data(struct emitted_diff_symbol *es) { - const struct emitted_diff_symbol *longer = a->len > b->len ? a : b; - const struct emitted_diff_symbol *shorter = a->len > b->len ? b : a; - int d = longer->len - shorter->len; + unsigned int off = 0, i; + int width = 0, tab_width = es->flags & WS_TAB_WIDTH_MASK; + const char *s = es->line; + const int len = es->len; + + /* skip any \v \f \r at start of indentation */ + while (s[off] == '\f' || s[off] == '\v' || + (s[off] == '\r' && off < len - 1)) + off++; + + /* calculate the visual width of indentation */ + while(1) { + if (s[off] == ' ') { + width++; + off++; + } else if (s[off] == '\t') { + width += tab_width - (width % tab_width); + while (s[++off] == '\t') + width += tab_width; + } else { + break; + } + } + + /* check if this line is blank */ + for (i = off; i < len; i++) + if (!isspace(s[i])) + break; + + if (i == len) { + es->indent_width = INDENT_BLANKLINE; + es->indent_off = len; + } else { + es->indent_off = off; + es->indent_width = width; + } +} + +static int compute_ws_delta(const struct emitted_diff_symbol *a, + const struct emitted_diff_symbol *b, + int *out) +{ + int a_len = a->len, + b_len = b->len, + a_off = a->indent_off, + a_width = a->indent_width, + b_off = b->indent_off, + b_width = b->indent_width; + int delta; + + if (a_width == INDENT_BLANKLINE && b_width == INDENT_BLANKLINE) { + *out = INDENT_BLANKLINE; + return 1; + } - if (strncmp(longer->line + d, shorter->line, shorter->len)) + if (a->s == DIFF_SYMBOL_PLUS) + delta = a_width - b_width; + else + delta = b_width - a_width; + + if (a_len - a_off != b_len - b_off || + memcmp(a->line + a_off, b->line + b_off, a_len - a_off)) return 0; - out->string = xmemdupz(longer->line, d); - out->current_longer = (a == longer); + *out = delta; return 1; } @@@ -882,53 -829,51 +882,53 @@@ static int cmp_in_block_with_wsd(const int n) { struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n]; - int al = cur->es->len, cl = l->len; + int al = cur->es->len, bl = match->es->len, cl = l->len; const char *a = cur->es->line, *b = match->es->line, *c = l->line; - - int wslen; + int a_off = cur->es->indent_off, + a_width = cur->es->indent_width, + c_off = l->indent_off, + c_width = l->indent_width; + int delta; /* - * We need to check if 'cur' is equal to 'match'. - * As those are from the same (+/-) side, we do not need to adjust for - * indent changes. However these were found using fuzzy matching - * so we do have to check if they are equal. + * We need to check if 'cur' is equal to 'match'. As those + * are from the same (+/-) side, we do not need to adjust for + * indent changes. However these were found using fuzzy + * matching so we do have to check if they are equal. Here we + * just check the lengths. We delay calling memcmp() to check + * the contents until later as if the length comparison for a + * and c fails we can avoid the call all together. */ - if (strcmp(a, b)) + if (al != bl) return 1; - if (!pmb->wsd.string) - /* - * The white space delta is not active? This can happen - * when we exit early in this function. - */ - return 1; + /* If 'l' and 'cur' are both blank then they match. */ + if (a_width == INDENT_BLANKLINE && c_width == INDENT_BLANKLINE) + return 0; /* - * The indent changes of the block are known and stored in - * pmb->wsd; however we need to check if the indent changes of the - * current line are still the same as before. - * - * To do so we need to compare 'l' to 'cur', adjusting the - * one of them for the white spaces, depending which was longer. + * The indent changes of the block are known and stored in pmb->wsd; + * however we need to check if the indent changes of the current line + * match those of the current block and that the text of 'l' and 'cur' + * after the indentation match. */ + if (cur->es->s == DIFF_SYMBOL_PLUS) + delta = a_width - c_width; + else + delta = c_width - a_width; - wslen = strlen(pmb->wsd.string); - if (pmb->wsd.current_longer) { - c += wslen; - cl -= wslen; - } else { - a += wslen; - al -= wslen; - } - - if (al != cl || memcmp(a, c, al)) - return 1; + /* + * If the previous lines of this block were all blank then set its + * whitespace delta. + */ + if (pmb->wsd == INDENT_BLANKLINE) + pmb->wsd = delta; - return 0; + return !(delta == pmb->wsd && al - a_off == cl - c_off && + !memcmp(a, b, al) && ! + memcmp(a + a_off, c + c_off, al - a_off)); } static int moved_entry_cmp(const void *hashmap_cmp_fn_data, @@@ -994,9 -939,6 +994,9 @@@ static void add_lines_to_move_detection continue; } + if (o->color_moved_ws_handling & + COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) + fill_es_indent_data(&o->emitted_symbols->buf[n]); key = prepare_entry(o, n); if (prev_line && prev_line->es->s == o->emitted_symbols->buf[n].s) prev_line->next_line = key; @@@ -1075,7 -1017,8 +1075,7 @@@ static int shrink_potential_moved_block if (lp < pmb_nr && rp > -1 && lp < rp) { pmb[lp] = pmb[rp]; - pmb[rp].match = NULL; - pmb[rp].wsd.string = NULL; + memset(&pmb[rp], 0, sizeof(pmb[rp])); rp--; lp++; } @@@ -1095,17 -1038,14 +1095,17 @@@ * The last block consists of the (n - block_length)'th line up to but not * including the nth line. * + * Returns 0 if the last block is empty or is unset by this function, non zero + * otherwise. + * * NEEDSWORK: This uses the same heuristic as blame_entry_score() in blame.c. * Think of a way to unify them. */ -static void adjust_last_block(struct diff_options *o, int n, int block_length) +static int adjust_last_block(struct diff_options *o, int n, int block_length) { int i, alnum_count = 0; if (o->color_moved == COLOR_MOVED_PLAIN) - return; + return block_length; for (i = 1; i < block_length + 1; i++) { const char *c = o->emitted_symbols->buf[n - i].line; for (; *c; c++) { @@@ -1113,12 -1053,11 +1113,12 @@@ continue; alnum_count++; if (alnum_count >= COLOR_MOVED_MIN_ALNUM_COUNT) - return; + return 1; } } for (i = 1; i < block_length + 1; i++) o->emitted_symbols->buf[n - i].flags &= ~DIFF_SYMBOL_MOVED_LINE; + return 0; } /* Find blocks of moved code, delegate actual coloring decision to helper */ @@@ -1128,7 -1067,7 +1128,7 @@@ static void mark_color_as_moved(struct { struct moved_block *pmb = NULL; /* potentially moved blocks */ int pmb_nr = 0, pmb_alloc = 0; - int n, flipped_block = 1, block_length = 0; + int n, flipped_block = 0, block_length = 0; for (n = 0; n < o->emitted_symbols->nr; n++) { @@@ -1136,7 -1075,6 +1136,7 @@@ struct moved_entry *key; struct moved_entry *match = NULL; struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n]; + enum diff_symbol last_symbol = 0; switch (l->s) { case DIFF_SYMBOL_PLUS: @@@ -1152,7 -1090,7 +1152,7 @@@ free(key); break; default: - flipped_block = 1; + flipped_block = 0; } if (!match) { @@@ -1163,16 -1101,13 +1163,16 @@@ moved_block_clear(&pmb[i]); pmb_nr = 0; block_length = 0; + flipped_block = 0; + last_symbol = l->s; continue; } - l->flags |= DIFF_SYMBOL_MOVED_LINE; - - if (o->color_moved == COLOR_MOVED_PLAIN) + if (o->color_moved == COLOR_MOVED_PLAIN) { + last_symbol = l->s; + l->flags |= DIFF_SYMBOL_MOVED_LINE; continue; + } if (o->color_moved_ws_handling & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) @@@ -1195,27 -1130,21 +1195,27 @@@ &pmb[pmb_nr].wsd)) pmb[pmb_nr++].match = match; } else { - pmb[pmb_nr].wsd.string = NULL; + pmb[pmb_nr].wsd = 0; pmb[pmb_nr++].match = match; } } - flipped_block = (flipped_block + 1) % 2; + if (adjust_last_block(o, n, block_length) && + pmb_nr && last_symbol != l->s) + flipped_block = (flipped_block + 1) % 2; + else + flipped_block = 0; - adjust_last_block(o, n, block_length); block_length = 0; } - block_length++; - - if (flipped_block && o->color_moved != COLOR_MOVED_BLOCKS) - l->flags |= DIFF_SYMBOL_MOVED_LINE_ALT; + if (pmb_nr) { + block_length++; + l->flags |= DIFF_SYMBOL_MOVED_LINE; + if (flipped_block && o->color_moved != COLOR_MOVED_BLOCKS) + l->flags |= DIFF_SYMBOL_MOVED_LINE_ALT; + } + last_symbol = l->s; } adjust_last_block(o, n, block_length); @@@ -1559,7 -1488,7 +1559,7 @@@ static void emit_diff_symbol_from_struc static void emit_diff_symbol(struct diff_options *o, enum diff_symbol s, const char *line, int len, unsigned flags) { - struct emitted_diff_symbol e = {line, len, flags, s}; + struct emitted_diff_symbol e = {line, len, flags, 0, 0, s}; if (o->emitted_symbols) append_emitted_diff_symbol(o, &e); @@@ -1617,7 -1546,8 +1617,7 @@@ static int new_blank_line_at_eof(struc 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; @@@ -1627,14 -1557,16 +1627,14 @@@ 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; @@@ -1743,6 -1675,7 +1743,6 @@@ static void emit_rewrite_lines(struct e 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 -1684,10 +1751,10 @@@ 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 -2224,7 +2291,7 @@@ const char *diff_line_prefix(struct dif 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; @@@ -2325,6 -2258,7 +2325,6 @@@ static void find_lno(const char *line, 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; @@@ -2355,7 -2289,7 +2355,7 @@@ 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; @@@ -2391,16 -2325,16 +2391,16 @@@ 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 */ @@@ -3543,7 -3477,7 +3543,7 @@@ static void builtin_diff(const char *na o->found_changes = 1; } else { /* Crazy xdl interfaces.. */ - const char *diffopts = getenv("GIT_DIFF_OPTS"); + const char *diffopts; const char *v; xpparam_t xpp; xdemitconf_t xecfg; @@@ -3586,15 -3520,12 +3586,15 @@@ xecfg.flags |= XDL_EMIT_FUNCCONTEXT; if (pe) xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags); + + diffopts = getenv("GIT_DIFF_OPTS"); if (!diffopts) ; else if (skip_prefix(diffopts, "--unified=", &v)) xecfg.ctxlen = strtoul(v, NULL, 10); else if (skip_prefix(diffopts, "-u", &v)) xecfg.ctxlen = strtoul(v, NULL, 10); + if (o->word_diff) init_diff_words_data(&ecbdata, o, one, two); if (xdi_diff_outf(&mf1, &mf2, NULL, fn_out_consume, @@@ -4182,6 -4113,7 +4182,6 @@@ static void run_external_diff(const cha 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; @@@ -4339,7 -4271,8 +4339,7 @@@ static void run_diff_cmd(const char *pg } 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) @@@ -4788,14 -4721,6 +4788,6 @@@ static int parse_dirstat_opt(struct dif 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, @@@ -4906,6 -4831,31 +4898,31 @@@ static int parse_objfind_opt(struct dif 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) { @@@ -4943,6 -4893,18 +4960,18 @@@ static int diff_opt_char(const struct o 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) { @@@ -4958,6 -4920,24 +4987,24 @@@ 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) { @@@ -5010,6 -4990,34 +5057,34 @@@ static int diff_opt_find_renames(const 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) @@@ -5027,6 -5035,26 +5102,26 @@@ 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) { @@@ -5039,6 -5067,35 +5134,35 @@@ 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) { @@@ -5055,6 -5112,44 +5179,44 @@@ 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[] = { @@@ -5132,6 -5227,13 +5294,13 @@@ 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_(""), @@@ -5171,6 -5273,9 +5340,9 @@@ 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, @@@ -5191,12 -5296,58 +5363,58 @@@ 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_(""), + N_("choose a diff algorithm"), + PARSE_OPT_NONEG, diff_opt_diff_algorithm), + OPT_CALLBACK_F(0, "anchored", options, N_(""), + N_("generate diff using the \"anchored diff\" algorithm"), + PARSE_OPT_NONEG, diff_opt_anchored), + OPT_CALLBACK_F(0, "word-diff", options, N_(""), + N_("show word diff, using to delimit changed words"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_word_diff), + OPT_CALLBACK_F(0, "word-diff-regex", options, N_(""), + N_("use to decide what a word is"), + PARSE_OPT_NONEG, diff_opt_word_diff_regex), + OPT_CALLBACK_F(0, "color-words", options, N_(""), + N_("equivalent to --word-diff=color --word-diff-regex="), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_color_words), OPT_GROUP(N_("Diff other options")), OPT_CALLBACK_F(0, "relative", options, N_(""), 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_(""), + 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_(""), + N_("specify how differences in submodules are shown"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_submodule), { OPTION_CALLBACK, 0, "output", options, N_(""), N_("Output to a specific file"), PARSE_OPT_NONEG, NULL, 0, diff_opt_output }, @@@ -5228,66 -5379,8 +5446,8 @@@ int diff_opt_parse(struct diff_options if (ac) return ac; - /* xdiff options */ - 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); - } - /* 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, "--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) @@@ -5299,60 -5392,12 +5459,14 @@@ 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_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; @@@ -6098,10 -6143,8 +6212,10 @@@ static void diff_flush_patch_all_file_p for (i = 0; i < esm.nr; i++) free((void *)esm.buf[i].line); + esm.nr = 0; + + o->emitted_symbols = NULL; } - esm.nr = 0; } void diff_flush(struct diff_options *options) @@@ -6360,7 -6403,7 +6474,7 @@@ static int diffnamecmp(const void *a_, 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);