]> git.ipfire.org Git - thirdparty/git.git/commitdiff
Merge branch 'sb/diff-emit-line-ws-markup-cleanup'
authorJunio C Hamano <gitster@pobox.com>
Fri, 26 Oct 2018 05:22:13 +0000 (14:22 +0900)
committerJunio C Hamano <gitster@pobox.com>
Fri, 26 Oct 2018 05:22:13 +0000 (14:22 +0900)
Code clean-up.

* sb/diff-emit-line-ws-markup-cleanup:
  diff.c: pass sign_index to emit_line_ws_markup

1  2 
diff.c

diff --combined diff.c
index 96833c8e81b5d6a7babb523c7ceec0e22ccdab33,9e895f21915ed76c8540360520ce2a279a27bfc8..e82b6341ee539882a7f0a21322ab304070a47a23
--- 1/diff.c
--- 2/diff.c
+++ b/diff.c
@@@ -554,15 -554,14 +554,15 @@@ static int count_lines(const char *data
        return count;
  }
  
 -static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
 +static int fill_mmfile(struct repository *r, mmfile_t *mf,
 +                     struct diff_filespec *one)
  {
        if (!DIFF_FILE_VALID(one)) {
                mf->ptr = (char *)""; /* does not matter */
                mf->size = 0;
                return 0;
        }
 -      else if (diff_populate_filespec(one, 0))
 +      else if (diff_populate_filespec(r, one, 0))
                return -1;
  
        mf->ptr = one->data;
  }
  
  /* like fill_mmfile, but only for size, so we can avoid retrieving blob */
 -static unsigned long diff_filespec_size(struct diff_filespec *one)
 +static unsigned long diff_filespec_size(struct repository *r,
 +                                      struct diff_filespec *one)
  {
        if (!DIFF_FILE_VALID(one))
                return 0;
 -      diff_populate_filespec(one, CHECK_SIZE_ONLY);
 +      diff_populate_filespec(r, one, CHECK_SIZE_ONLY);
        return one->size;
  }
  
@@@ -778,6 -776,7 +778,6 @@@ struct moved_entry 
        struct hashmap_entry ent;
        const struct emitted_diff_symbol *es;
        struct moved_entry *next_line;
 -      struct ws_delta *wsd;
  };
  
  /**
@@@ -794,17 -793,6 +794,17 @@@ struct ws_delta 
  };
  #define WS_DELTA_INIT { NULL, 0 }
  
 +struct moved_block {
 +      struct moved_entry *match;
 +      struct ws_delta wsd;
 +};
 +
 +static void moved_block_clear(struct moved_block *b)
 +{
 +      FREE_AND_NULL(b->wsd.string);
 +      b->match = NULL;
 +}
 +
  static int compute_ws_delta(const struct emitted_diff_symbol *a,
                             const struct emitted_diff_symbol *b,
                             struct ws_delta *out)
        const struct emitted_diff_symbol *shorter = a->len > b->len ? b : a;
        int d = longer->len - shorter->len;
  
 +      if (strncmp(longer->line + d, shorter->line, shorter->len))
 +              return 0;
 +
        out->string = xmemdupz(longer->line, d);
        out->current_longer = (a == longer);
  
 -      return !strncmp(longer->line + d, shorter->line, shorter->len);
 +      return 1;
  }
  
  static int cmp_in_block_with_wsd(const struct diff_options *o,
                                 const struct moved_entry *cur,
                                 const struct moved_entry *match,
 -                               struct moved_entry *pmb,
 +                               struct moved_block *pmb,
                                 int n)
  {
        struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n];
        if (strcmp(a, b))
                return 1;
  
 -      if (!pmb->wsd)
 +      if (!pmb->wsd.string)
                /*
 -               * No white space delta was carried forward? This can happen
 -               * when we exit early in this function and do not carry
 -               * forward ws.
 +               * The white space delta is not active? This can happen
 +               * when we exit early in this function.
                 */
                return 1;
  
        /*
 -       * The indent changes of the block are known and carried forward in
 +       * 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.
         *
         * one of them for the white spaces, depending which was longer.
         */
  
 -      wslen = strlen(pmb->wsd->string);
 -      if (pmb->wsd->current_longer) {
 +      wslen = strlen(pmb->wsd.string);
 +      if (pmb->wsd.current_longer) {
                c += wslen;
                cl -= wslen;
        } else {
                al -= wslen;
        }
  
 -      if (strcmp(a, c))
 +      if (al != cl || memcmp(a, c, al))
                return 1;
  
        return 0;
@@@ -912,6 -898,7 +912,6 @@@ static struct moved_entry *prepare_entr
        ret->ent.hash = xdiff_hash_string(l->line, l->len, flags);
        ret->es = l;
        ret->next_line = NULL;
 -      ret->wsd = NULL;
  
        return ret;
  }
@@@ -951,18 -938,18 +951,18 @@@ static void add_lines_to_move_detection
  static void pmb_advance_or_null(struct diff_options *o,
                                struct moved_entry *match,
                                struct hashmap *hm,
 -                              struct moved_entry **pmb,
 +                              struct moved_block *pmb,
                                int pmb_nr)
  {
        int i;
        for (i = 0; i < pmb_nr; i++) {
 -              struct moved_entry *prev = pmb[i];
 +              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)) {
 -                      pmb[i] = cur;
 +                      pmb[i].match = cur;
                } else {
 -                      pmb[i] = NULL;
 +                      pmb[i].match = NULL;
                }
        }
  }
  static void pmb_advance_or_null_multi_match(struct diff_options *o,
                                            struct moved_entry *match,
                                            struct hashmap *hm,
 -                                          struct moved_entry **pmb,
 +                                          struct moved_block *pmb,
                                            int pmb_nr, int n)
  {
        int i;
  
        for (; match; match = hashmap_get_next(hm, match)) {
                for (i = 0; i < pmb_nr; i++) {
 -                      struct moved_entry *prev = pmb[i];
 +                      struct moved_entry *prev = pmb[i].match;
                        struct moved_entry *cur = (prev && prev->next_line) ?
                                        prev->next_line : NULL;
                        if (!cur)
                                continue;
 -                      if (!cmp_in_block_with_wsd(o, cur, match, pmb[i], n))
 +                      if (!cmp_in_block_with_wsd(o, cur, match, &pmb[i], n))
                                got_match[i] |= 1;
                }
        }
  
        for (i = 0; i < pmb_nr; i++) {
                if (got_match[i]) {
 -                      /* Carry the white space delta forward */
 -                      pmb[i]->next_line->wsd = pmb[i]->wsd;
 -                      pmb[i] = pmb[i]->next_line;
 +                      /* Advance to the next line */
 +                      pmb[i].match = pmb[i].match->next_line;
                } else {
 -                      if (pmb[i]->wsd) {
 -                              free(pmb[i]->wsd->string);
 -                              FREE_AND_NULL(pmb[i]->wsd);
 -                      }
 -                      pmb[i] = NULL;
 +                      moved_block_clear(&pmb[i]);
                }
        }
 +
 +      free(got_match);
  }
  
 -static int shrink_potential_moved_blocks(struct moved_entry **pmb,
 +static int shrink_potential_moved_blocks(struct moved_block *pmb,
                                         int pmb_nr)
  {
        int lp, rp;
  
        /* Shrink the set of potential block to the remaining running */
        for (lp = 0, rp = pmb_nr - 1; lp <= rp;) {
 -              while (lp < pmb_nr && pmb[lp])
 +              while (lp < pmb_nr && pmb[lp].match)
                        lp++;
                /* lp points at the first NULL now */
  
 -              while (rp > -1 && !pmb[rp])
 +              while (rp > -1 && !pmb[rp].match)
                        rp--;
                /* rp points at the last non-NULL */
  
                if (lp < pmb_nr && rp > -1 && lp < rp) {
                        pmb[lp] = pmb[rp];
 -                      pmb[rp] = NULL;
 +                      pmb[rp].match = NULL;
 +                      pmb[rp].wsd.string = NULL;
                        rp--;
                        lp++;
                }
@@@ -1065,7 -1054,7 +1065,7 @@@ static void mark_color_as_moved(struct 
                                struct hashmap *add_lines,
                                struct hashmap *del_lines)
  {
 -      struct moved_entry **pmb = NULL; /* potentially moved blocks */
 +      struct moved_block *pmb = NULL; /* potentially moved blocks */
        int pmb_nr = 0, pmb_alloc = 0;
        int n, flipped_block = 1, block_length = 0;
  
                }
  
                if (!match) {
 +                      int i;
 +
                        adjust_last_block(o, n, block_length);
 +                      for(i = 0; i < pmb_nr; i++)
 +                              moved_block_clear(&pmb[i]);
                        pmb_nr = 0;
                        block_length = 0;
                        continue;
                                ALLOC_GROW(pmb, pmb_nr + 1, pmb_alloc);
                                if (o->color_moved_ws_handling &
                                    COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) {
 -                                      struct ws_delta *wsd = xmalloc(sizeof(*match->wsd));
 -                                      if (compute_ws_delta(l, match->es, wsd)) {
 -                                              match->wsd = wsd;
 -                                              pmb[pmb_nr++] = match;
 -                                      } else
 -                                              free(wsd);
 +                                      if (compute_ws_delta(l, match->es,
 +                                                           &pmb[pmb_nr].wsd))
 +                                              pmb[pmb_nr++].match = match;
                                } else {
 -                                      pmb[pmb_nr++] = match;
 +                                      pmb[pmb_nr].wsd.string = NULL;
 +                                      pmb[pmb_nr++].match = match;
                                }
                        }
  
        }
        adjust_last_block(o, n, block_length);
  
 +      for(n = 0; n < pmb_nr; n++)
 +              moved_block_clear(&pmb[n]);
        free(pmb);
  }
  
@@@ -1217,10 -1202,11 +1217,11 @@@ static void dim_moved_lines(struct diff
  static void emit_line_ws_markup(struct diff_options *o,
                                const char *set_sign, const char *set,
                                const char *reset,
-                               char sign, const char *line, int len,
+                               int sign_index, const char *line, int len,
                                unsigned ws_rule, int blank_at_eof)
  {
        const char *ws = NULL;
+       int sign = o->output_indicators[sign_index];
  
        if (o->ws_error_highlight & ws_rule) {
                ws = diff_get_color_opt(o, DIFF_WHITESPACE);
@@@ -1300,8 -1286,7 +1301,7 @@@ static void emit_diff_symbol_from_struc
                                set = diff_get_color_opt(o, DIFF_FILE_OLD);
                }
                emit_line_ws_markup(o, set_sign, set, reset,
-                                   o->output_indicators[OUTPUT_INDICATOR_CONTEXT],
-                                   line, len,
+                                   OUTPUT_INDICATOR_CONTEXT, line, len,
                                    flags & (DIFF_SYMBOL_CONTENT_WS_MASK), 0);
                break;
        case DIFF_SYMBOL_PLUS:
                        flags &= ~DIFF_SYMBOL_CONTENT_WS_MASK;
                }
                emit_line_ws_markup(o, set_sign, set, reset,
-                                   o->output_indicators[OUTPUT_INDICATOR_NEW],
-                                   line, len,
+                                   OUTPUT_INDICATOR_NEW, line, len,
                                    flags & DIFF_SYMBOL_CONTENT_WS_MASK,
                                    flags & DIFF_SYMBOL_CONTENT_BLANK_LINE_EOF);
                break;
                                set = diff_get_color_opt(o, DIFF_CONTEXT_DIM);
                }
                emit_line_ws_markup(o, set_sign, set, reset,
-                                   o->output_indicators[OUTPUT_INDICATOR_OLD],
-                                   line, len,
+                                   OUTPUT_INDICATOR_OLD, line, len,
                                    flags & DIFF_SYMBOL_CONTENT_WS_MASK, 0);
                break;
        case DIFF_SYMBOL_WORDS_PORCELAIN:
@@@ -1729,12 -1712,12 +1727,12 @@@ static void emit_rewrite_diff(const cha
        quote_two_c_style(&a_name, a_prefix, name_a, 0);
        quote_two_c_style(&b_name, b_prefix, name_b, 0);
  
 -      size_one = fill_textconv(textconv_one, one, &data_one);
 -      size_two = fill_textconv(textconv_two, two, &data_two);
 +      size_one = fill_textconv(o->repo, textconv_one, one, &data_one);
 +      size_two = fill_textconv(o->repo, textconv_two, two, &data_two);
  
        memset(&ecbdata, 0, sizeof(ecbdata));
        ecbdata.color_diff = want_color(o->use_color);
 -      ecbdata.ws_rule = whitespace_rule(name_b);
 +      ecbdata.ws_rule = whitespace_rule(o->repo->index, name_b);
        ecbdata.opt = o;
        if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
                mmfile_t mf1, mf2;
@@@ -2122,25 -2105,23 +2120,25 @@@ static void diff_words_flush(struct emi
        }
  }
  
 -static void diff_filespec_load_driver(struct diff_filespec *one)
 +static void diff_filespec_load_driver(struct diff_filespec *one,
 +                                    struct index_state *istate)
  {
        /* Use already-loaded driver */
        if (one->driver)
                return;
  
        if (S_ISREG(one->mode))
 -              one->driver = userdiff_find_by_path(one->path);
 +              one->driver = userdiff_find_by_path(istate, one->path);
  
        /* Fallback to default settings */
        if (!one->driver)
                one->driver = userdiff_find_by_name("default");
  }
  
 -static const char *userdiff_word_regex(struct diff_filespec *one)
 +static const char *userdiff_word_regex(struct diff_filespec *one,
 +                                     struct index_state *istate)
  {
 -      diff_filespec_load_driver(one);
 +      diff_filespec_load_driver(one, istate);
        return one->driver->word_regex;
  }
  
@@@ -2163,9 -2144,9 +2161,9 @@@ static void init_diff_words_data(struc
                        xcalloc(1, sizeof(struct emitted_diff_symbols));
  
        if (!o->word_regex)
 -              o->word_regex = userdiff_word_regex(one);
 +              o->word_regex = userdiff_word_regex(one, o->repo->index);
        if (!o->word_regex)
 -              o->word_regex = userdiff_word_regex(two);
 +              o->word_regex = userdiff_word_regex(two, o->repo->index);
        if (!o->word_regex)
                o->word_regex = diff_word_regex_cfg;
        if (o->word_regex) {
@@@ -2993,19 -2974,18 +2991,19 @@@ static void show_dirstat(struct diff_op
                }
  
                if (DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
 -                      diff_populate_filespec(p->one, 0);
 -                      diff_populate_filespec(p->two, 0);
 -                      diffcore_count_changes(p->one, p->two, NULL, NULL,
 +                      diff_populate_filespec(options->repo, p->one, 0);
 +                      diff_populate_filespec(options->repo, p->two, 0);
 +                      diffcore_count_changes(options->repo,
 +                                             p->one, p->two, NULL, NULL,
                                               &copied, &added);
                        diff_free_filespec_data(p->one);
                        diff_free_filespec_data(p->two);
                } else if (DIFF_FILE_VALID(p->one)) {
 -                      diff_populate_filespec(p->one, CHECK_SIZE_ONLY);
 +                      diff_populate_filespec(options->repo, p->one, CHECK_SIZE_ONLY);
                        copied = added = 0;
                        diff_free_filespec_data(p->one);
                } else if (DIFF_FILE_VALID(p->two)) {
 -                      diff_populate_filespec(p->two, CHECK_SIZE_ONLY);
 +                      diff_populate_filespec(options->repo, p->two, CHECK_SIZE_ONLY);
                        copied = 0;
                        added = p->two->size;
                        diff_free_filespec_data(p->two);
@@@ -3279,16 -3259,15 +3277,16 @@@ static void emit_binary_diff(struct dif
        emit_binary_diff_body(o, two, one);
  }
  
 -int diff_filespec_is_binary(struct diff_filespec *one)
 +int diff_filespec_is_binary(struct repository *r,
 +                          struct diff_filespec *one)
  {
        if (one->is_binary == -1) {
 -              diff_filespec_load_driver(one);
 +              diff_filespec_load_driver(one, r->index);
                if (one->driver->binary != -1)
                        one->is_binary = one->driver->binary;
                else {
                        if (!one->data && DIFF_FILE_VALID(one))
 -                              diff_populate_filespec(one, CHECK_BINARY);
 +                              diff_populate_filespec(r, one, CHECK_BINARY);
                        if (one->is_binary == -1 && one->data)
                                one->is_binary = buffer_is_binary(one->data,
                                                one->size);
        return one->is_binary;
  }
  
 -static const struct userdiff_funcname *diff_funcname_pattern(struct diff_filespec *one)
 +static const struct userdiff_funcname *
 +diff_funcname_pattern(struct diff_options *o, struct diff_filespec *one)
  {
 -      diff_filespec_load_driver(one);
 +      diff_filespec_load_driver(one, o->repo->index);
        return one->driver->funcname.pattern ? &one->driver->funcname : NULL;
  }
  
@@@ -3314,13 -3292,12 +3312,13 @@@ void diff_set_mnemonic_prefix(struct di
                options->b_prefix = b;
  }
  
 -struct userdiff_driver *get_textconv(struct diff_filespec *one)
 +struct userdiff_driver *get_textconv(struct index_state *istate,
 +                                   struct diff_filespec *one)
  {
        if (!DIFF_FILE_VALID(one))
                return NULL;
  
 -      diff_filespec_load_driver(one);
 +      diff_filespec_load_driver(one, istate);
        return userdiff_get_textconv(one->driver);
  }
  
@@@ -3370,8 -3347,8 +3368,8 @@@ static void builtin_diff(const char *na
        }
  
        if (o->flags.allow_textconv) {
 -              textconv_one = get_textconv(one);
 -              textconv_two = get_textconv(two);
 +              textconv_one = get_textconv(o->repo->index, one);
 +              textconv_two = get_textconv(o->repo->index, two);
        }
  
        /* Never use a non-valid filename anywhere if at all possible */
                if ((one->mode ^ two->mode) & S_IFMT)
                        goto free_ab_and_return;
                if (complete_rewrite &&
 -                  (textconv_one || !diff_filespec_is_binary(one)) &&
 -                  (textconv_two || !diff_filespec_is_binary(two))) {
 +                  (textconv_one || !diff_filespec_is_binary(o->repo, one)) &&
 +                  (textconv_two || !diff_filespec_is_binary(o->repo, two))) {
                        emit_diff_symbol(o, DIFF_SYMBOL_HEADER,
                                         header.buf, header.len, 0);
                        strbuf_reset(&header);
                        emit_rewrite_diff(name_a, name_b, one, two,
 -                                              textconv_one, textconv_two, o);
 +                                        textconv_one, textconv_two, o);
                        o->found_changes = 1;
                        goto free_ab_and_return;
                }
                strbuf_reset(&header);
                goto free_ab_and_return;
        } else if (!o->flags.text &&
 -          ( (!textconv_one && diff_filespec_is_binary(one)) ||
 -            (!textconv_two && diff_filespec_is_binary(two)) )) {
 +                 ( (!textconv_one && diff_filespec_is_binary(o->repo, one)) ||
 +                   (!textconv_two && diff_filespec_is_binary(o->repo, two)) )) {
                struct strbuf sb = STRBUF_INIT;
                if (!one->data && !two->data &&
                    S_ISREG(one->mode) && S_ISREG(two->mode) &&
                        strbuf_release(&sb);
                        goto free_ab_and_return;
                }
 -              if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
 +              if (fill_mmfile(o->repo, &mf1, one) < 0 ||
 +                  fill_mmfile(o->repo, &mf2, two) < 0)
                        die("unable to read files to diff");
                /* Quite common confusing case */
                if (mf1.size == mf2.size &&
                        strbuf_reset(&header);
                }
  
 -              mf1.size = fill_textconv(textconv_one, one, &mf1.ptr);
 -              mf2.size = fill_textconv(textconv_two, two, &mf2.ptr);
 +              mf1.size = fill_textconv(o->repo, textconv_one, one, &mf1.ptr);
 +              mf2.size = fill_textconv(o->repo, textconv_two, two, &mf2.ptr);
  
 -              pe = diff_funcname_pattern(one);
 +              pe = diff_funcname_pattern(o, one);
                if (!pe)
 -                      pe = diff_funcname_pattern(two);
 +                      pe = diff_funcname_pattern(o, two);
  
                memset(&xpp, 0, sizeof(xpp));
                memset(&xecfg, 0, sizeof(xecfg));
                        lbl[0] = NULL;
                ecbdata.label_path = lbl;
                ecbdata.color_diff = want_color(o->use_color);
 -              ecbdata.ws_rule = whitespace_rule(name_b);
 +              ecbdata.ws_rule = whitespace_rule(o->repo->index, name_b);
                if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
                        check_blank_at_eof(&mf1, &mf2, &ecbdata);
                ecbdata.opt = o;
@@@ -3604,21 -3580,20 +3602,21 @@@ static void builtin_diffstat(const cha
  
        same_contents = oideq(&one->oid, &two->oid);
  
 -      if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
 +      if (diff_filespec_is_binary(o->repo, one) ||
 +          diff_filespec_is_binary(o->repo, two)) {
                data->is_binary = 1;
                if (same_contents) {
                        data->added = 0;
                        data->deleted = 0;
                } else {
 -                      data->added = diff_filespec_size(two);
 -                      data->deleted = diff_filespec_size(one);
 +                      data->added = diff_filespec_size(o->repo, two);
 +                      data->deleted = diff_filespec_size(o->repo, one);
                }
        }
  
        else if (complete_rewrite) {
 -              diff_populate_filespec(one, 0);
 -              diff_populate_filespec(two, 0);
 +              diff_populate_filespec(o->repo, one, 0);
 +              diff_populate_filespec(o->repo, two, 0);
                data->deleted = count_lines(one->data, one->size);
                data->added = count_lines(two->data, two->size);
        }
                xpparam_t xpp;
                xdemitconf_t xecfg;
  
 -              if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
 +              if (fill_mmfile(o->repo, &mf1, one) < 0 ||
 +                  fill_mmfile(o->repo, &mf2, two) < 0)
                        die("unable to read files to diff");
  
                memset(&xpp, 0, sizeof(xpp));
@@@ -3664,11 -3638,10 +3662,11 @@@ static void builtin_checkdiff(const cha
        data.filename = name_b ? name_b : name_a;
        data.lineno = 0;
        data.o = o;
 -      data.ws_rule = whitespace_rule(attr_path);
 -      data.conflict_marker_size = ll_merge_marker_size(attr_path);
 +      data.ws_rule = whitespace_rule(o->repo->index, attr_path);
 +      data.conflict_marker_size = ll_merge_marker_size(o->repo->index, attr_path);
  
 -      if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
 +      if (fill_mmfile(o->repo, &mf1, one) < 0 ||
 +          fill_mmfile(o->repo, &mf2, two) < 0)
                die("unable to read files to diff");
  
        /*
         * introduced changes, and as long as the "new" side is text, we
         * can and should check what it introduces.
         */
 -      if (diff_filespec_is_binary(two))
 +      if (diff_filespec_is_binary(o->repo, two))
                goto free_and_return;
        else {
                /* Crazy xdl interfaces.. */
@@@ -3750,10 -3723,7 +3748,10 @@@ void fill_filespec(struct diff_filespe
   * the work tree has that object contents, return true, so that
   * prepare_temp_file() does not have to inflate and extract.
   */
 -static int reuse_worktree_file(const char *name, const struct object_id *oid, int want_file)
 +static int reuse_worktree_file(struct index_state *istate,
 +                             const char *name,
 +                             const struct object_id *oid,
 +                             int want_file)
  {
        const struct cache_entry *ce;
        struct stat st;
         * by diff-cache --cached, which does read the cache before
         * calling us.
         */
 -      if (!active_cache)
 +      if (!istate->cache)
                return 0;
  
        /* We want to avoid the working directory if our caller
         * Similarly, if we'd have to convert the file contents anyway, that
         * makes the optimization not worthwhile.
         */
 -      if (!want_file && would_convert_to_git(&the_index, name))
 +      if (!want_file && would_convert_to_git(istate, name))
                return 0;
  
        len = strlen(name);
 -      pos = cache_name_pos(name, len);
 +      pos = index_name_pos(istate, name, len);
        if (pos < 0)
                return 0;
 -      ce = active_cache[pos];
 +      ce = istate->cache[pos];
  
        /*
         * This is not the sha1 we are looking for, or
         * If ce matches the file in the work tree, we can reuse it.
         */
        if (ce_uptodate(ce) ||
 -          (!lstat(name, &st) && !ce_match_stat(ce, &st, 0)))
 +          (!lstat(name, &st) && !ie_match_stat(istate, ce, &st, 0)))
                return 1;
  
        return 0;
@@@ -3851,9 -3821,7 +3849,9 @@@ static int diff_populate_gitlink(struc
   * grab the data for the blob (or file) for our own in-core comparison.
   * diff_filespec has data and size fields for this purpose.
   */
 -int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
 +int diff_populate_filespec(struct repository *r,
 +                         struct diff_filespec *s,
 +                         unsigned int flags)
  {
        int size_only = flags & CHECK_SIZE_ONLY;
        int err = 0;
                return diff_populate_gitlink(s, size_only);
  
        if (!s->oid_valid ||
 -          reuse_worktree_file(s->path, &s->oid, 0)) {
 +          reuse_worktree_file(r->index, s->path, &s->oid, 0)) {
                struct strbuf buf = STRBUF_INIT;
                struct stat st;
                int fd;
                 * point if the path requires us to run the content
                 * conversion.
                 */
 -              if (size_only && !would_convert_to_git(&the_index, s->path))
 +              if (size_only && !would_convert_to_git(r->index, s->path))
                        return 0;
  
                /*
                /*
                 * Convert from working tree format to canonical git format
                 */
 -              if (convert_to_git(&the_index, s->path, s->data, s->size, &buf, conv_flags)) {
 +              if (convert_to_git(r->index, s->path, s->data, s->size, &buf, conv_flags)) {
                        size_t size = 0;
                        munmap(s->data, s->size);
                        s->should_munmap = 0;
        else {
                enum object_type type;
                if (size_only || (flags & CHECK_BINARY)) {
 -                      type = oid_object_info(the_repository, &s->oid,
 -                                             &s->size);
 +                      type = oid_object_info(r, &s->oid, &s->size);
                        if (type < 0)
                                die("unable to read %s",
                                    oid_to_hex(&s->oid));
@@@ -3990,8 -3959,7 +3988,8 @@@ void diff_free_filespec_data(struct dif
        FREE_AND_NULL(s->cnt_data);
  }
  
 -static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
 +static void prep_temp_blob(struct index_state *istate,
 +                         const char *path, struct diff_tempfile *temp,
                           void *blob,
                           unsigned long size,
                           const struct object_id *oid,
        temp->tempfile = mks_tempfile_ts(tempfile.buf, strlen(base) + 1);
        if (!temp->tempfile)
                die_errno("unable to create temp-file");
 -      if (convert_to_working_tree(&the_index, path,
 +      if (convert_to_working_tree(istate, path,
                        (const char *)blob, (size_t)size, &buf)) {
                blob = buf.buf;
                size = buf.len;
        free(path_dup);
  }
  
 -static struct diff_tempfile *prepare_temp_file(const char *name,
 -              struct diff_filespec *one)
 +static struct diff_tempfile *prepare_temp_file(struct repository *r,
 +                                             const char *name,
 +                                             struct diff_filespec *one)
  {
        struct diff_tempfile *temp = claim_diff_tempfile();
  
  
        if (!S_ISGITLINK(one->mode) &&
            (!one->oid_valid ||
 -           reuse_worktree_file(name, &one->oid, 1))) {
 +           reuse_worktree_file(r->index, name, &one->oid, 1))) {
                struct stat st;
                if (lstat(name, &st) < 0) {
                        if (errno == ENOENT)
                        struct strbuf sb = STRBUF_INIT;
                        if (strbuf_readlink(&sb, name, st.st_size) < 0)
                                die_errno("readlink(%s)", name);
 -                      prep_temp_blob(name, temp, sb.buf, sb.len,
 +                      prep_temp_blob(r->index, name, temp, sb.buf, sb.len,
                                       (one->oid_valid ?
                                        &one->oid : &null_oid),
                                       (one->oid_valid ?
                return temp;
        }
        else {
 -              if (diff_populate_filespec(one, 0))
 +              if (diff_populate_filespec(r, one, 0))
                        die("cannot read data blob for %s", one->path);
 -              prep_temp_blob(name, temp, one->data, one->size,
 +              prep_temp_blob(r->index, name, temp,
 +                             one->data, one->size,
                               &one->oid, one->mode);
        }
        return temp;
  }
  
 -static void add_external_diff_name(struct argv_array *argv,
 +static void add_external_diff_name(struct repository *r,
 +                                 struct argv_array *argv,
                                   const char *name,
                                   struct diff_filespec *df)
  {
 -      struct diff_tempfile *temp = prepare_temp_file(name, df);
 +      struct diff_tempfile *temp = prepare_temp_file(r, name, df);
        argv_array_push(argv, temp->name);
        argv_array_push(argv, temp->hex);
        argv_array_push(argv, temp->mode);
@@@ -4123,11 -4088,11 +4121,11 @@@ static void run_external_diff(const cha
        argv_array_push(&argv, name);
  
        if (one && two) {
 -              add_external_diff_name(&argv, name, one);
 +              add_external_diff_name(o->repo, &argv, name, one);
                if (!other)
 -                      add_external_diff_name(&argv, name, two);
 +                      add_external_diff_name(o->repo, &argv, name, two);
                else {
 -                      add_external_diff_name(&argv, other, two);
 +                      add_external_diff_name(o->repo, &argv, other, two);
                        argv_array_push(&argv, other);
                        argv_array_push(&argv, xfrm_msg);
                }
@@@ -4220,10 -4185,8 +4218,10 @@@ static void fill_metainfo(struct strbu
  
                if (o->flags.binary) {
                        mmfile_t mf;
 -                      if ((!fill_mmfile(&mf, one) && diff_filespec_is_binary(one)) ||
 -                          (!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
 +                      if ((!fill_mmfile(o->repo, &mf, one) &&
 +                           diff_filespec_is_binary(o->repo, one)) ||
 +                          (!fill_mmfile(o->repo, &mf, two) &&
 +                           diff_filespec_is_binary(o->repo, two)))
                                abbrev = hexsz;
                }
                strbuf_addf(msg, "%s%sindex %s..%s", line_prefix, set,
@@@ -4251,9 -4214,7 +4249,9 @@@ static void run_diff_cmd(const char *pg
  
  
        if (o->flags.allow_external) {
 -              struct userdiff_driver *drv = userdiff_find_by_path(attr_path);
 +              struct userdiff_driver *drv;
 +
 +              drv = userdiff_find_by_path(o->repo->index, attr_path);
                if (drv && drv->external)
                        pgm = drv->external;
        }
                fprintf(o->file, "* Unmerged path %s\n", name);
  }
  
 -static void diff_fill_oid_info(struct diff_filespec *one)
 +static void diff_fill_oid_info(struct diff_filespec *one, struct index_state *istate)
  {
        if (DIFF_FILE_VALID(one)) {
                if (!one->oid_valid) {
                        }
                        if (lstat(one->path, &st) < 0)
                                die_errno("stat '%s'", one->path);
 -                      if (index_path(&one->oid, one->path, &st, 0))
 +                      if (index_path(istate, &one->oid, one->path, &st, 0))
                                die("cannot hash %s", one->path);
                }
        }
@@@ -4341,8 -4302,8 +4339,8 @@@ static void run_diff(struct diff_filepa
                return;
        }
  
 -      diff_fill_oid_info(one);
 -      diff_fill_oid_info(two);
 +      diff_fill_oid_info(one, o->repo->index);
 +      diff_fill_oid_info(two, o->repo->index);
  
        if (!pgm &&
            DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) &&
                 */
                struct diff_filespec *null = alloc_filespec(two->path);
                run_diff_cmd(NULL, name, other, attr_path,
 -                           one, null, &msg, o, p);
 +                           one, null, &msg,
 +                           o, p);
                free(null);
                strbuf_release(&msg);
  
@@@ -4378,8 -4338,7 +4376,8 @@@ static void run_diffstat(struct diff_fi
  
        if (DIFF_PAIR_UNMERGED(p)) {
                /* unmerged */
 -              builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, o, p);
 +              builtin_diffstat(p->one->path, NULL, NULL, NULL,
 +                               diffstat, o, p);
                return;
        }
  
        if (o->prefix_length)
                strip_prefix(o->prefix_length, &name, &other);
  
 -      diff_fill_oid_info(p->one);
 -      diff_fill_oid_info(p->two);
 +      diff_fill_oid_info(p->one, o->repo->index);
 +      diff_fill_oid_info(p->two, o->repo->index);
  
 -      builtin_diffstat(name, other, p->one, p->two, diffstat, o, p);
 +      builtin_diffstat(name, other, p->one, p->two,
 +                       diffstat, o, p);
  }
  
  static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
        if (o->prefix_length)
                strip_prefix(o->prefix_length, &name, &other);
  
 -      diff_fill_oid_info(p->one);
 -      diff_fill_oid_info(p->two);
 +      diff_fill_oid_info(p->one, o->repo->index);
 +      diff_fill_oid_info(p->two, o->repo->index);
  
        builtin_checkdiff(name, other, attr_path, p->one, p->two, o);
  }
  
 -void diff_setup(struct diff_options *options)
 +void repo_diff_setup(struct repository *r, struct diff_options *options)
  {
        memcpy(options, &default_diff_options, sizeof(*options));
  
        options->file = stdout;
 +      options->repo = r;
  
        options->output_indicators[OUTPUT_INDICATOR_NEW] = '+';
        options->output_indicators[OUTPUT_INDICATOR_OLD] = '-';
@@@ -5724,8 -5681,8 +5722,8 @@@ static int diff_get_patch_id(struct dif
                if (DIFF_PAIR_UNMERGED(p))
                        continue;
  
 -              diff_fill_oid_info(p->one);
 -              diff_fill_oid_info(p->two);
 +              diff_fill_oid_info(p->one, options->repo->index);
 +              diff_fill_oid_info(p->two, options->repo->index);
  
                len1 = remove_space(p->one->path, strlen(p->one->path));
                len2 = remove_space(p->two->path, strlen(p->two->path));
                if (diff_header_only)
                        continue;
  
 -              if (fill_mmfile(&mf1, p->one) < 0 ||
 -                  fill_mmfile(&mf2, p->two) < 0)
 +              if (fill_mmfile(options->repo, &mf1, p->one) < 0 ||
 +                  fill_mmfile(options->repo, &mf2, p->two) < 0)
                        return error("unable to read files to diff");
  
 -              if (diff_filespec_is_binary(p->one) ||
 -                  diff_filespec_is_binary(p->two)) {
 +              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),
@@@ -5880,8 -5837,8 +5878,8 @@@ static void diff_flush_patch_all_file_p
                        if (o->color_moved == COLOR_MOVED_ZEBRA_DIM)
                                dim_moved_lines(o);
  
 -                      hashmap_free(&add_lines, 0);
 -                      hashmap_free(&del_lines, 0);
 +                      hashmap_free(&add_lines, 1);
 +                      hashmap_free(&del_lines, 1);
                }
  
                for (i = 0; i < esm.nr; i++)
@@@ -6065,21 -6022,19 +6063,21 @@@ static void diffcore_apply_filter(struc
  }
  
  /* Check whether two filespecs with the same mode and size are identical */
 -static int diff_filespec_is_identical(struct diff_filespec *one,
 +static int diff_filespec_is_identical(struct repository *r,
 +                                    struct diff_filespec *one,
                                      struct diff_filespec *two)
  {
        if (S_ISGITLINK(one->mode))
                return 0;
 -      if (diff_populate_filespec(one, 0))
 +      if (diff_populate_filespec(r, one, 0))
                return 0;
 -      if (diff_populate_filespec(two, 0))
 +      if (diff_populate_filespec(r, two, 0))
                return 0;
        return !memcmp(one->data, two->data, one->size);
  }
  
 -static int diff_filespec_check_stat_unmatch(struct diff_filepair *p)
 +static int diff_filespec_check_stat_unmatch(struct repository *r,
 +                                          struct diff_filepair *p)
  {
        if (p->done_skip_stat_unmatch)
                return p->skip_stat_unmatch_result;
            !DIFF_FILE_VALID(p->two) ||
            (p->one->oid_valid && p->two->oid_valid) ||
            (p->one->mode != p->two->mode) ||
 -          diff_populate_filespec(p->one, CHECK_SIZE_ONLY) ||
 -          diff_populate_filespec(p->two, CHECK_SIZE_ONLY) ||
 +          diff_populate_filespec(r, p->one, CHECK_SIZE_ONLY) ||
 +          diff_populate_filespec(r, p->two, CHECK_SIZE_ONLY) ||
            (p->one->size != p->two->size) ||
 -          !diff_filespec_is_identical(p->one, p->two)) /* (2) */
 +          !diff_filespec_is_identical(r, p->one, p->two)) /* (2) */
                p->skip_stat_unmatch_result = 1;
        return p->skip_stat_unmatch_result;
  }
@@@ -6121,7 -6076,7 +6119,7 @@@ static void diffcore_skip_stat_unmatch(
        for (i = 0; i < q->nr; i++) {
                struct diff_filepair *p = q->queue[i];
  
 -              if (diff_filespec_check_stat_unmatch(p))
 +              if (diff_filespec_check_stat_unmatch(diffopt->repo, p))
                        diff_q(&outq, p);
                else {
                        /*
@@@ -6163,8 -6118,7 +6161,8 @@@ void diffcore_std(struct diff_options *
        if (!options->found_follow) {
                /* See try_to_follow_renames() in tree-diff.c */
                if (options->break_opt != -1)
 -                      diffcore_break(options->break_opt);
 +                      diffcore_break(options->repo,
 +                                     options->break_opt);
                if (options->detect_rename)
                        diffcore_rename(options);
                if (options->break_opt != -1)
@@@ -6315,7 -6269,7 +6313,7 @@@ void diff_change(struct diff_options *o
                return;
  
        if (options->flags.quick && options->skip_stat_unmatch &&
 -          !diff_filespec_check_stat_unmatch(p))
 +          !diff_filespec_check_stat_unmatch(options->repo, p))
                return;
  
        options->flags.has_changes = 1;
@@@ -6337,10 -6291,8 +6335,10 @@@ struct diff_filepair *diff_unmerge(stru
        return pair;
  }
  
 -static char *run_textconv(const char *pgm, struct diff_filespec *spec,
 -              size_t *outsize)
 +static char *run_textconv(struct repository *r,
 +                        const char *pgm,
 +                        struct diff_filespec *spec,
 +                        size_t *outsize)
  {
        struct diff_tempfile *temp;
        const char *argv[3];
        struct strbuf buf = STRBUF_INIT;
        int err = 0;
  
 -      temp = prepare_temp_file(spec->path, spec);
 +      temp = prepare_temp_file(r, spec->path, spec);
        *arg++ = pgm;
        *arg++ = temp->name;
        *arg = NULL;
        return strbuf_detach(&buf, outsize);
  }
  
 -size_t fill_textconv(struct userdiff_driver *driver,
 +size_t fill_textconv(struct repository *r,
 +                   struct userdiff_driver *driver,
                     struct diff_filespec *df,
                     char **outbuf)
  {
                        *outbuf = "";
                        return 0;
                }
 -              if (diff_populate_filespec(df, 0))
 +              if (diff_populate_filespec(r, df, 0))
                        die("unable to read files to diff");
                *outbuf = df->data;
                return df->size;
                        return size;
        }
  
 -      *outbuf = run_textconv(driver->textconv, df, &size);
 +      *outbuf = run_textconv(r, driver->textconv, df, &size);
        if (!*outbuf)
                die("unable to read files to diff");
  
        return size;
  }
  
 -int textconv_object(const char *path,
 +int textconv_object(struct repository *r,
 +                  const char *path,
                    unsigned mode,
                    const struct object_id *oid,
                    int oid_valid,
  
        df = alloc_filespec(path);
        fill_filespec(df, oid, oid_valid, mode);
 -      textconv = get_textconv(df);
 +      textconv = get_textconv(r->index, df);
        if (!textconv) {
                free_filespec(df);
                return 0;
        }
  
 -      *buf_size = fill_textconv(textconv, df, buf);
 +      *buf_size = fill_textconv(r, textconv, df, buf);
        free_filespec(df);
        return 1;
  }