diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 1685 |
1 files changed, 1036 insertions, 649 deletions
@@ -23,7 +23,9 @@ #include "argv-array.h" #include "graph.h" #include "packfile.h" +#include "parse-options.h" #include "help.h" +#include "promisor-remote.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -103,11 +105,6 @@ 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 +175,10 @@ 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 +205,10 @@ 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; } @@ -291,7 +296,7 @@ static int parse_color_moved(const char *arg) return error(_("color moved setting must be one of 'no', 'default', 'blocks', 'zebra', 'dimmed-zebra', 'plain'")); } -static int parse_color_moved_ws(const char *arg) +static unsigned parse_color_moved_ws(const char *arg) { int ret = 0; struct string_list l = STRING_LIST_INIT_DUP; @@ -304,7 +309,9 @@ static int parse_color_moved_ws(const char *arg) 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; @@ -312,15 +319,19 @@ static int parse_color_moved_ws(const char *arg) ret |= XDF_IGNORE_WHITESPACE; else if (!strcmp(sb.buf, "allow-indentation-change")) ret |= COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE; - else - error(_("ignoring unknown color-moved-ws mode '%s'"), sb.buf); + else { + ret |= COLOR_MOVED_WS_ERROR; + error(_("unknown color-moved-ws mode '%s', possible values are 'ignore-space-change', 'ignore-space-at-eol', 'ignore-all-space', 'allow-indentation-change'"), sb.buf); + } strbuf_release(&sb); } if ((ret & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) && - (ret & XDF_WHITESPACE_FLAGS)) - die(_("color-moved-ws: allow-indentation-change cannot be combined with other white space modes")); + (ret & XDF_WHITESPACE_FLAGS)) { + error(_("color-moved-ws: allow-indentation-change cannot be combined with other whitespace modes")); + ret |= COLOR_MOVED_WS_ERROR; + } string_list_clear(&l, 0); @@ -341,8 +352,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb) return 0; } if (!strcmp(var, "diff.colormovedws")) { - int cm = parse_color_moved_ws(value); - if (cm < 0) + unsigned cm = parse_color_moved_ws(value); + if (cm & COLOR_MOVED_WS_ERROR) return -1; diff_color_moved_ws_default = cm; return 0; @@ -489,7 +500,7 @@ 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; @@ -750,6 +761,8 @@ 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} @@ -780,44 +793,85 @@ 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 (strncmp(longer->line + d, shorter->line, shorter->len)) + 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 (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; } @@ -829,64 +883,68 @@ static int cmp_in_block_with_wsd(const struct diff_options *o, 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, - const void *entry, - const void *entry_or_key, + const struct hashmap_entry *eptr, + const struct hashmap_entry *entry_or_key, const void *keydata) { const struct diff_options *diffopt = hashmap_cmp_fn_data; - const struct moved_entry *a = entry; - const struct moved_entry *b = entry_or_key; + const struct moved_entry *a, *b; unsigned flags = diffopt->color_moved_ws_handling & XDF_WHITESPACE_FLAGS; + a = container_of(eptr, const struct moved_entry, ent); + b = container_of(entry_or_key, const struct moved_entry, ent); + if (diffopt->color_moved_ws_handling & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) /* @@ -908,8 +966,9 @@ static struct moved_entry *prepare_entry(struct diff_options *o, struct moved_entry *ret = xmalloc(sizeof(*ret)); struct emitted_diff_symbol *l = &o->emitted_symbols->buf[line_no]; unsigned flags = o->color_moved_ws_handling & XDF_WHITESPACE_FLAGS; + unsigned int hash = xdiff_hash_string(l->line, l->len, flags); - ret->ent.hash = xdiff_hash_string(l->line, l->len, flags); + hashmap_entry_init(&ret->ent, hash); ret->es = l; ret->next_line = NULL; @@ -939,11 +998,14 @@ static void add_lines_to_move_detection(struct diff_options *o, 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; - hashmap_add(hm, key); + hashmap_add(hm, &key->ent); prev_line = key; } } @@ -959,7 +1021,7 @@ static void pmb_advance_or_null(struct diff_options *o, struct moved_entry *prev = pmb[i].match; struct moved_entry *cur = (prev && prev->next_line) ? prev->next_line : NULL; - if (cur && !hm->cmpfn(o, cur, match, NULL)) { + if (cur && !hm->cmpfn(o, &cur->ent, &match->ent, NULL)) { pmb[i].match = cur; } else { pmb[i].match = NULL; @@ -976,7 +1038,7 @@ static void pmb_advance_or_null_multi_match(struct diff_options *o, int i; char *got_match = xcalloc(1, pmb_nr); - for (; match; match = hashmap_get_next(hm, match)) { + hashmap_for_each_entry_from(hm, match, ent) { for (i = 0; i < pmb_nr; i++) { struct moved_entry *prev = pmb[i].match; struct moved_entry *cur = (prev && prev->next_line) ? @@ -1017,8 +1079,7 @@ static int shrink_potential_moved_blocks(struct moved_block *pmb, 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++; } @@ -1038,14 +1099,17 @@ static int shrink_potential_moved_blocks(struct moved_block *pmb, * 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++) { @@ -1053,11 +1117,12 @@ static void adjust_last_block(struct diff_options *o, int n, int block_length) 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 */ @@ -1067,7 +1132,7 @@ static void mark_color_as_moved(struct diff_options *o, { 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++) { @@ -1075,22 +1140,23 @@ static void mark_color_as_moved(struct diff_options *o, 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: hm = del_lines; key = prepare_entry(o, n); - match = hashmap_get(hm, key, NULL); + match = hashmap_get_entry(hm, key, ent, NULL); free(key); break; case DIFF_SYMBOL_MINUS: hm = add_lines; key = prepare_entry(o, n); - match = hashmap_get(hm, key, NULL); + match = hashmap_get_entry(hm, key, ent, NULL); free(key); break; default: - flipped_block = 1; + flipped_block = 0; } if (!match) { @@ -1101,13 +1167,16 @@ static void mark_color_as_moved(struct diff_options *o, 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) @@ -1122,7 +1191,7 @@ static void mark_color_as_moved(struct diff_options *o, * The current line is the start of a new block. * Setup the set of potential blocks. */ - for (; match; match = hashmap_get_next(hm, match)) { + hashmap_for_each_entry_from(hm, match, ent) { ALLOC_GROW(pmb, pmb_nr + 1, pmb_alloc); if (o->color_moved_ws_handling & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) { @@ -1130,21 +1199,27 @@ static void mark_color_as_moved(struct diff_options *o, &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); @@ -1488,7 +1563,7 @@ static void emit_diff_symbol_from_struct(struct diff_options *o, 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); @@ -1546,8 +1621,7 @@ 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; @@ -1557,16 +1631,14 @@ 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; @@ -1604,7 +1676,10 @@ static void emit_hunk_header(struct emit_callback *ecbdata, if (ecbdata->opt->flags.dual_color_diffed_diffs) strbuf_addstr(&msgbuf, reverse); strbuf_addstr(&msgbuf, frag); - strbuf_add(&msgbuf, line, ep - line); + if (ecbdata->opt->flags.suppress_hunk_header_line_count) + strbuf_add(&msgbuf, atat, sizeof(atat)); + else + strbuf_add(&msgbuf, line, ep - line); strbuf_addstr(&msgbuf, reset); /* @@ -1637,7 +1712,8 @@ static void emit_hunk_header(struct emit_callback *ecbdata, strbuf_release(&msgbuf); } -static struct diff_tempfile *claim_diff_tempfile(void) { +static struct diff_tempfile *claim_diff_tempfile(void) +{ int i; for (i = 0; i < ARRAY_SIZE(diff_temp); i++) if (!diff_temp[i].name) @@ -1674,7 +1750,6 @@ 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; @@ -1683,10 +1758,10 @@ 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; @@ -2223,7 +2298,7 @@ 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; @@ -2257,7 +2332,6 @@ 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; @@ -2288,7 +2362,7 @@ 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; @@ -2324,16 +2398,16 @@ 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 */ @@ -2421,22 +2495,6 @@ static void pprint_rename(struct strbuf *name, const char *a, const char *b) } } -struct diffstat_t { - int nr; - int alloc; - struct diffstat_file { - char *from_name; - char *name; - char *print_name; - const char *comments; - unsigned is_unmerged:1; - unsigned is_binary:1; - unsigned is_renamed:1; - unsigned is_interesting:1; - uintmax_t added, deleted; - } **files; -}; - static struct diffstat_file *diffstat_add(struct diffstat_t *diffstat, const char *name_a, const char *name_b) @@ -2477,7 +2535,7 @@ static int scale_linear(int it, int width, int max_change) /* * make sure that at least one '-' or '+' is printed if * there is any change to this path. The easiest way is to - * scale linearly as if the alloted width is one column shorter + * scale linearly as if the allotted width is one column shorter * than it is, and then add 1 to the result. */ return 1 + (it * (width - 1) / max_change); @@ -3083,7 +3141,7 @@ static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *o gather_dirstat(options, &dir, changed, "", 0); } -static void free_diffstat_info(struct diffstat_t *diffstat) +void free_diffstat_info(struct diffstat_t *diffstat) { int i; for (i = 0; i < diffstat->nr; i++) { @@ -3122,7 +3180,7 @@ static int is_conflict_marker(const char *line, int marker_size, unsigned long l for (cnt = 1; cnt < marker_size; cnt++) if (line[cnt] != firstchar) return 0; - /* line[1] thru line[marker_size-1] are same as firstchar */ + /* line[1] through line[marker_size-1] are same as firstchar */ if (len < marker_size + 1 || !isspace(line[marker_size])) return 0; return 1; @@ -3313,14 +3371,14 @@ void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const options->b_prefix = b; } -struct userdiff_driver *get_textconv(struct index_state *istate, +struct userdiff_driver *get_textconv(struct repository *r, struct diff_filespec *one) { if (!DIFF_FILE_VALID(one)) return NULL; - diff_filespec_load_driver(one, istate); - return userdiff_get_textconv(one->driver); + diff_filespec_load_driver(one, r->index); + return userdiff_get_textconv(r, one->driver); } static void builtin_diff(const char *name_a, @@ -3369,8 +3427,8 @@ static void builtin_diff(const char *name_a, } if (o->flags.allow_textconv) { - textconv_one = get_textconv(o->repo->index, one); - textconv_two = get_textconv(o->repo->index, two); + textconv_one = get_textconv(o->repo, one); + textconv_two = get_textconv(o->repo, two); } /* Never use a non-valid filename anywhere if at all possible */ @@ -3476,7 +3534,7 @@ static void builtin_diff(const char *name_a, 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; @@ -3519,12 +3577,15 @@ static void builtin_diff(const char *name_a, 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, @@ -4112,7 +4173,6 @@ 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; @@ -4136,6 +4196,8 @@ static void run_external_diff(const char *pgm, argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter); argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr); + diff_free_filespec_data(one); + diff_free_filespec_data(two); if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv)) die(_("external diff died, stopping at %s"), name); @@ -4270,8 +4332,7 @@ 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) @@ -4420,6 +4481,8 @@ 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)); @@ -4461,6 +4524,8 @@ 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) @@ -4564,68 +4629,8 @@ void diff_setup_done(struct diff_options *options) if (!options->use_color || external_diff()) options->color_moved = 0; -} - -static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) -{ - char c, *eq; - int len; - if (*arg != '-') - return 0; - c = *++arg; - if (!c) - return 0; - if (c == arg_short) { - c = *++arg; - if (!c) - return 1; - if (val && isdigit(c)) { - char *end; - int n = strtoul(arg, &end, 10); - if (*end) - return 0; - *val = n; - return 1; - } - return 0; - } - if (c != '-') - return 0; - arg++; - eq = strchrnul(arg, '='); - len = eq - arg; - if (!len || strncmp(arg, arg_long, len)) - return 0; - if (*eq) { - int n; - char *end; - if (!isdigit(*++eq)) - return 0; - n = strtoul(eq, &end, 10); - if (*end) - return 0; - *val = n; - } - return 1; -} - -static int diff_scoreopt_parse(const char *opt); - -static inline int short_opt(char opt, const char **argv, - const char **optarg) -{ - const char *arg = argv[0]; - if (arg[0] != '-' || arg[1] != opt) - return 0; - if (arg[2] != '\0') { - *optarg = arg + 2; - return 1; - } - if (!argv[1]) - die("Option '%c' requires a value", opt); - *optarg = argv[1]; - return 2; + FREE_AND_NULL(options->parseopts); } int parse_long_opt(const char *opt, const char **argv, @@ -4649,77 +4654,56 @@ 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) @@ -4737,14 +4721,6 @@ 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, @@ -4776,10 +4752,19 @@ static unsigned filter_bit_tst(char status, const struct diff_options *opt) return opt->filter & filter_bit[(int) status]; } -static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) +unsigned diff_filter_bit(char status) +{ + prepare_filter_bits(); + return filter_bit[(int) status]; +} + +static int diff_opt_diff_filter(const struct option *option, + const char *optarg, int unset) { + struct diff_options *opt = option->value; int i, optch; + BUG_ON_OPT_NEG(unset); prepare_filter_bits(); /* @@ -4810,7 +4795,8 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0; if (!bit) - return optarg[i]; + return error(_("unknown change class '%c' in --diff-filter=%s"), + optarg[i], optarg); if (negate) opt->filter &= ~bit; else @@ -4819,30 +4805,35 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) return 0; } -static void enable_patch_output(int *fmt) { +static void enable_patch_output(int *fmt) +{ *fmt &= ~DIFF_FORMAT_NO_OUTPUT; *fmt |= DIFF_FORMAT_PATCH; } -static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *arg) +static int diff_opt_ws_error_highlight(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; int val = parse_ws_error_highlight(arg); - if (val < 0) { - error("unknown value after ws-error-highlight=%.*s", - -1 - val, arg); - return 0; - } + BUG_ON_OPT_NEG(unset); + if (val < 0) + return error(_("unknown value after ws-error-highlight=%.*s"), + -1 - val, arg); opt->ws_error_highlight = val; - return 1; + return 0; } -static int parse_objfind_opt(struct diff_options *opt, const char *arg) +static int diff_opt_find_object(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; struct object_id oid; + BUG_ON_OPT_NEG(unset); if (get_oid(arg, &oid)) - return error("unable to resolve '%s'", arg); + return error(_("unable to resolve '%s'"), arg); if (!opt->objfind) opt->objfind = xcalloc(1, sizeof(*opt->objfind)); @@ -4851,202 +4842,384 @@ static int parse_objfind_opt(struct diff_options *opt, const char *arg) opt->flags.recursive = 1; opt->flags.tree_in_recursive = 1; oidset_insert(opt->objfind, &oid); - return 1; + return 0; } -int diff_opt_parse(struct diff_options *options, - const char **av, int ac, const char *prefix) +static int diff_opt_anchored(const struct option *opt, + const char *arg, int unset) { - const char *arg = av[0]; - const char *optarg; - int argcount; + struct diff_options *options = opt->value; - if (!prefix) - prefix = ""; + 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; +} - /* 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; +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); } - 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); - } - - /* 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 (*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_moved(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + if (unset) { + options->color_moved = COLOR_MOVED_NO; + } else if (!arg) { if (diff_color_moved_default) options->color_moved = diff_color_moved_default; if (options->color_moved == COLOR_MOVED_NO) options->color_moved = COLOR_MOVED_DEFAULT; - } else if (!strcmp(arg, "--no-color-moved")) - options->color_moved = COLOR_MOVED_NO; - else if (skip_prefix(arg, "--color-moved=", &arg)) { + } else { int cm = parse_color_moved(arg); if (cm < 0) - die("bad --color-moved argument: %s", arg); + return error(_("bad --color-moved argument: %s"), arg); options->color_moved = cm; - } else if (skip_prefix(arg, "--color-moved-ws=", &arg)) { - options->color_moved_ws_handling = parse_color_moved_ws(arg); - } 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; + return 0; +} + +static int diff_opt_color_moved_ws(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + unsigned cm; + + if (unset) { + options->color_moved_ws_handling = 0; + return 0; } - else if (skip_prefix(arg, "--word-diff=", &arg)) { + + cm = parse_color_moved_ws(arg); + if (cm & COLOR_MOVED_WS_ERROR) + return error(_("invalid mode '%s' in --color-moved-ws"), arg); + options->color_moved_ws_handling = cm; + return 0; +} + +static int diff_opt_color_words(const struct option *opt, + const char *arg, int unset) +{ + 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 int diff_opt_line_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->line_prefix = optarg; + options->line_prefix_length = strlen(options->line_prefix); + graph_setup_line_prefix(options); + return 0; +} + +static int diff_opt_no_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(optarg); + options->a_prefix = ""; + options->b_prefix = ""; + return 0; +} + +static enum parse_opt_result diff_opt_output(struct parse_opt_ctx_t *ctx, + const struct option *opt, + const char *arg, int unset) +{ + 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_pickaxe_regex(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; + return 0; +} + +static int diff_opt_pickaxe_string(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; + return 0; +} + +static int diff_opt_relative(const struct option *opt, + const char *arg, int unset) +{ + 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); + + if (arg) { + 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")) { @@ -5058,118 +5231,305 @@ int diff_opt_parse(struct diff_options *options, 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))) { + return error(_("bad --word-diff argument: %s"), arg); + } else { 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)) - return parse_ws_error_highlight_opt(options, arg); - else if (!strcmp(arg, "--ita-invisible-in-index")) - options->ita_invisible_in_index = 1; - else if (!strcmp(arg, "--ita-visible-in-index")) - options->ita_invisible_in_index = 0; - - /* misc options */ - else if (!strcmp(arg, "-z")) - options->line_termination = 0; - else if ((argcount = short_opt('l', av, &optarg))) { - options->rename_limit = strtoul(optarg, NULL, 10); - return argcount; - } - else if ((argcount = short_opt('S', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; - return argcount; - } else if ((argcount = short_opt('G', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; - return argcount; - } - else if (!strcmp(arg, "--pickaxe-all")) - options->pickaxe_opts |= DIFF_PICKAXE_ALL; - else if (!strcmp(arg, "--pickaxe-regex")) - options->pickaxe_opts |= DIFF_PICKAXE_REGEX; - else if ((argcount = short_opt('O', av, &optarg))) { - options->orderfile = prefix_filename(prefix, optarg); - return argcount; - } else if (skip_prefix(arg, "--find-object=", &arg)) - return parse_objfind_opt(options, arg); - else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) { - int offending = parse_diff_filter_opt(optarg, options); - if (offending) - die("unknown change class '%c' in --diff-filter=%s", - offending, optarg); - return argcount; - } - else if (!strcmp(arg, "--no-abbrev")) - options->abbrev = 0; - else if (!strcmp(arg, "--abbrev")) - options->abbrev = DEFAULT_ABBREV; - else if (skip_prefix(arg, "--abbrev=", &arg)) { - options->abbrev = strtoul(arg, NULL, 10); - if (options->abbrev < MINIMUM_ABBREV) - options->abbrev = MINIMUM_ABBREV; - else if (the_hash_algo->hexsz < options->abbrev) - options->abbrev = the_hash_algo->hexsz; - } - else if ((argcount = parse_long_opt("src-prefix", av, &optarg))) { - options->a_prefix = optarg; - return argcount; - } - else if ((argcount = parse_long_opt("line-prefix", av, &optarg))) { - options->line_prefix = optarg; - options->line_prefix_length = strlen(options->line_prefix); - graph_setup_line_prefix(options); - return argcount; - } - else if ((argcount = parse_long_opt("dst-prefix", av, &optarg))) { - options->b_prefix = optarg; - return argcount; - } - else if (!strcmp(arg, "--no-prefix")) - options->a_prefix = options->b_prefix = ""; - else if (opt_arg(arg, '\0', "inter-hunk-context", - &options->interhunkcontext)) - ; - else 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 - return 0; - return 1; + 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 | PARSE_OPT_OPTARG, 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, "ws-error-highlight", options, N_("<kind>"), + N_("highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff"), + PARSE_OPT_NONEG, diff_opt_ws_error_highlight), + OPT_SET_INT('z', NULL, &options->line_termination, + N_("do not munge pathnames and use NULs as output field terminators in --raw or --numstat"), + 0), + OPT__ABBREV(&options->abbrev), + OPT_STRING_F(0, "src-prefix", &options->a_prefix, N_("<prefix>"), + N_("show the given source prefix instead of \"a/\""), + PARSE_OPT_NONEG), + OPT_STRING_F(0, "dst-prefix", &options->b_prefix, N_("<prefix>"), + N_("show the given destination prefix instead of \"b/\""), + PARSE_OPT_NONEG), + OPT_CALLBACK_F(0, "line-prefix", options, N_("<prefix>"), + N_("prepend an additional prefix to every line of output"), + PARSE_OPT_NONEG, diff_opt_line_prefix), + OPT_CALLBACK_F(0, "no-prefix", options, NULL, + N_("do not show any source or destination prefix"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_no_prefix), + OPT_INTEGER_F(0, "inter-hunk-context", &options->interhunkcontext, + N_("show context between diff hunks up to the specified number of lines"), + PARSE_OPT_NONEG), + OPT_CALLBACK_F(0, "output-indicator-new", + &options->output_indicators[OUTPUT_INDICATOR_NEW], + N_("<char>"), + 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_INTEGER('l', NULL, &options->rename_limit, + N_("prevent rename/copy detection if the number of rename/copy targets exceeds given limit")), + + OPT_GROUP(N_("Diff algorithm options")), + OPT_BIT(0, "minimal", &options->xdl_opts, + N_("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_CALLBACK_F(0, "color-moved", options, N_("<mode>"), + N_("moved lines of code are colored differently"), + PARSE_OPT_OPTARG, diff_opt_color_moved), + OPT_CALLBACK_F(0, "color-moved-ws", options, N_("<mode>"), + N_("how white spaces are ignored in --color-moved"), + 0, diff_opt_color_moved_ws), + + OPT_GROUP(N_("Other diff 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), + OPT_SET_INT_F(0, "ita-invisible-in-index", &options->ita_invisible_in_index, + N_("hide 'git add -N' entries from the index"), + 1, PARSE_OPT_NONEG), + OPT_SET_INT_F(0, "ita-visible-in-index", &options->ita_invisible_in_index, + N_("treat 'git add -N' entries as real in the index"), + 0, PARSE_OPT_NONEG), + OPT_CALLBACK_F('S', NULL, options, N_("<string>"), + N_("look for differences that change the number of occurrences of the specified string"), + 0, diff_opt_pickaxe_string), + OPT_CALLBACK_F('G', NULL, options, N_("<regex>"), + N_("look for differences that change the number of occurrences of the specified regex"), + 0, diff_opt_pickaxe_regex), + OPT_BIT_F(0, "pickaxe-all", &options->pickaxe_opts, + N_("show all changes in the changeset with -S or -G"), + DIFF_PICKAXE_ALL, PARSE_OPT_NONEG), + OPT_BIT_F(0, "pickaxe-regex", &options->pickaxe_opts, + N_("treat <string> in -S as extended POSIX regular expression"), + DIFF_PICKAXE_REGEX, PARSE_OPT_NONEG), + OPT_FILENAME('O', NULL, &options->orderfile, + N_("control the order in which files appear in the output")), + OPT_CALLBACK_F(0, "find-object", options, N_("<object-id>"), + N_("look for differences that change the number of occurrences of the specified object"), + PARSE_OPT_NONEG, diff_opt_find_object), + OPT_CALLBACK_F(0, "diff-filter", options, N_("[(A|C|D|M|R|T|U|X|B)...[*]]"), + N_("select files by diff type"), + PARSE_OPT_NONEG, diff_opt_diff_filter), + { OPTION_CALLBACK, 0, "output", options, N_("<file>"), + N_("Output to a specific file"), + PARSE_OPT_NONEG, NULL, 0, diff_opt_output }, + + 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) +{ + if (!prefix) + prefix = ""; + + 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); + + return ac; } int parse_rename_score(const char **cp_p) @@ -5208,47 +5568,6 @@ 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) @@ -5646,7 +5965,7 @@ static void diff_summary(struct diff_options *opt, struct diff_filepair *p) } struct patch_id_t { - git_SHA_CTX *ctx; + git_hash_ctx *ctx; int patchlen; }; @@ -5663,6 +5982,22 @@ static int remove_space(char *line, int len) return dst - line; } +void flush_one_hunk(struct object_id *result, git_hash_ctx *ctx) +{ + unsigned char hash[GIT_MAX_RAWSZ]; + unsigned short carry = 0; + int i; + + the_hash_algo->final_fn(hash, ctx); + the_hash_algo->init_fn(ctx); + /* 20-byte sum, with carry */ + for (i = 0; i < the_hash_algo->rawsz; ++i) { + carry += result->hash[i] + hash[i]; + result->hash[i] = carry; + carry >>= 8; + } +} + static void patch_id_consume(void *priv, char *line, unsigned long len) { struct patch_id_t *data = priv; @@ -5670,34 +6005,35 @@ static void patch_id_consume(void *priv, char *line, unsigned long len) new_len = remove_space(line, len); - git_SHA1_Update(data->ctx, line, new_len); + the_hash_algo->update_fn(data->ctx, line, new_len); data->patchlen += new_len; } -static void patch_id_add_string(git_SHA_CTX *ctx, const char *str) +static void patch_id_add_string(git_hash_ctx *ctx, const char *str) { - git_SHA1_Update(ctx, str, strlen(str)); + the_hash_algo->update_fn(ctx, str, strlen(str)); } -static void patch_id_add_mode(git_SHA_CTX *ctx, unsigned mode) +static void patch_id_add_mode(git_hash_ctx *ctx, unsigned mode) { /* large enough for 2^32 in octal */ char buf[12]; int len = xsnprintf(buf, sizeof(buf), "%06o", mode); - git_SHA1_Update(ctx, buf, len); + the_hash_algo->update_fn(ctx, buf, len); } -/* returns 0 upon success, and writes result into sha1 */ -static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only) +/* returns 0 upon success, and writes result into oid */ +static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable) { struct diff_queue_struct *q = &diff_queued_diff; int i; - git_SHA_CTX ctx; + git_hash_ctx ctx; struct patch_id_t data; - git_SHA1_Init(&ctx); + the_hash_algo->init_fn(&ctx); memset(&data, 0, sizeof(struct patch_id_t)); data.ctx = &ctx; + oidclr(oid); for (i = 0; i < q->nr; i++) { xpparam_t xpp; @@ -5727,27 +6063,27 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid len2 = remove_space(p->two->path, strlen(p->two->path)); patch_id_add_string(&ctx, "diff--git"); patch_id_add_string(&ctx, "a/"); - git_SHA1_Update(&ctx, p->one->path, len1); + the_hash_algo->update_fn(&ctx, p->one->path, len1); patch_id_add_string(&ctx, "b/"); - git_SHA1_Update(&ctx, p->two->path, len2); + the_hash_algo->update_fn(&ctx, p->two->path, len2); if (p->one->mode == 0) { patch_id_add_string(&ctx, "newfilemode"); patch_id_add_mode(&ctx, p->two->mode); patch_id_add_string(&ctx, "---/dev/null"); patch_id_add_string(&ctx, "+++b/"); - git_SHA1_Update(&ctx, p->two->path, len2); + the_hash_algo->update_fn(&ctx, p->two->path, len2); } else if (p->two->mode == 0) { patch_id_add_string(&ctx, "deletedfilemode"); patch_id_add_mode(&ctx, p->one->mode); patch_id_add_string(&ctx, "---a/"); - git_SHA1_Update(&ctx, p->one->path, len1); + the_hash_algo->update_fn(&ctx, p->one->path, len1); patch_id_add_string(&ctx, "+++/dev/null"); } else { patch_id_add_string(&ctx, "---a/"); - git_SHA1_Update(&ctx, p->one->path, len1); + the_hash_algo->update_fn(&ctx, p->one->path, len1); patch_id_add_string(&ctx, "+++b/"); - git_SHA1_Update(&ctx, p->two->path, len2); + the_hash_algo->update_fn(&ctx, p->two->path, len2); } if (diff_header_only) @@ -5759,10 +6095,10 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid if (diff_filespec_is_binary(options->repo, p->one) || diff_filespec_is_binary(options->repo, p->two)) { - git_SHA1_Update(&ctx, oid_to_hex(&p->one->oid), - GIT_SHA1_HEXSZ); - git_SHA1_Update(&ctx, oid_to_hex(&p->two->oid), - GIT_SHA1_HEXSZ); + the_hash_algo->update_fn(&ctx, oid_to_hex(&p->one->oid), + the_hash_algo->hexsz); + the_hash_algo->update_fn(&ctx, oid_to_hex(&p->two->oid), + the_hash_algo->hexsz); continue; } @@ -5773,17 +6109,22 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid patch_id_consume, &data, &xpp, &xecfg)) return error("unable to generate patch-id diff for %s", p->one->path); + + if (stable) + flush_one_hunk(oid, &ctx); } - git_SHA1_Final(oid->hash, &ctx); + if (!stable) + the_hash_algo->final_fn(oid->hash, &ctx); + return 0; } -int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only) +int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable) { struct diff_queue_struct *q = &diff_queued_diff; int i; - int result = diff_get_patch_id(options, oid, diff_header_only); + int result = diff_get_patch_id(options, oid, diff_header_only, stable); for (i = 0; i < q->nr; i++) diff_free_filepair(q->queue[i]); @@ -5876,8 +6217,10 @@ static void diff_flush_patch_all_file_pairs(struct diff_options *o) if (o->color_moved == COLOR_MOVED_ZEBRA_DIM) dim_moved_lines(o); - hashmap_free(&add_lines, 1); - hashmap_free(&del_lines, 1); + hashmap_free_entries(&add_lines, struct moved_entry, + ent); + hashmap_free_entries(&del_lines, struct moved_entry, + ent); } for (i = 0; i < esm.nr; i++) @@ -5885,8 +6228,10 @@ static void diff_flush_patch_all_file_pairs(struct diff_options *o) 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) @@ -5922,12 +6267,7 @@ void diff_flush(struct diff_options *options) dirstat_by_line) { struct diffstat_t diffstat; - memset(&diffstat, 0, sizeof(struct diffstat_t)); - for (i = 0; i < q->nr; i++) { - struct diff_filepair *p = q->queue[i]; - if (check_pair_status(p)) - diff_flush_stat(p, options, &diffstat); - } + compute_diffstat(options, &diffstat, q); if (output_format & DIFF_FORMAT_NUMSTAT) show_numstat(&diffstat, options); if (output_format & DIFF_FORMAT_DIFFSTAT) @@ -6145,14 +6485,47 @@ 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); } +static void add_if_missing(struct repository *r, + struct oid_array *to_fetch, + const struct diff_filespec *filespec) +{ + if (filespec && filespec->oid_valid && + !S_ISGITLINK(filespec->mode) && + oid_object_info_extended(r, &filespec->oid, NULL, + OBJECT_INFO_FOR_PREFETCH)) + oid_array_append(to_fetch, &filespec->oid); +} + void diffcore_std(struct diff_options *options) { + if (options->repo == the_repository && has_promisor_remote()) { + /* + * Prefetch the diff pairs that are about to be flushed. + */ + int i; + struct diff_queue_struct *q = &diff_queued_diff; + struct oid_array to_fetch = OID_ARRAY_INIT; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + add_if_missing(options->repo, &to_fetch, p->one); + add_if_missing(options->repo, &to_fetch, p->two); + } + if (to_fetch.nr) + /* + * NEEDSWORK: Consider deduplicating the OIDs sent. + */ + promisor_remote_get_direct(options->repo, + to_fetch.oid, to_fetch.nr); + oid_array_clear(&to_fetch); + } + /* NOTE please keep the following in sync with diff_tree_combined() */ if (options->skip_stat_unmatch) diffcore_skip_stat_unmatch(options); @@ -6227,6 +6600,20 @@ static int is_submodule_ignored(const char *path, struct diff_options *options) return ignored; } +void compute_diffstat(struct diff_options *options, + struct diffstat_t *diffstat, + struct diff_queue_struct *q) +{ + int i; + + memset(diffstat, 0, sizeof(struct diffstat_t)); + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + if (check_pair_status(p)) + diff_flush_stat(p, options, diffstat); + } +} + void diff_addremove(struct diff_options *options, int addremove, unsigned mode, const struct object_id *oid, @@ -6434,7 +6821,7 @@ int textconv_object(struct repository *r, df = alloc_filespec(path); fill_filespec(df, oid, oid_valid, mode); - textconv = get_textconv(r->index, df); + textconv = get_textconv(r, df); if (!textconv) { free_filespec(df); return 0; |