Make the diff_options bitfields be an unsigned with explicit masks.

reverse_diff was a bit-value in disguise, it's merged in the flags now.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-blame.c b/builtin-blame.c
index ba80bf8942f1db42b8a132471ddbfc38e565f115..c158d319dce78c6b1f0cfeffd91ee565a2d14eff 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -335,7 +335,7 @@ static struct origin *find_origin(struct scoreboard *sb,
         * same and diff-tree is fairly efficient about this.
         */
        diff_setup(&diff_opts);
-       diff_opts.recursive = 1;
+       DIFF_OPT_SET(&diff_opts, RECURSIVE);
        diff_opts.detect_rename = 0;
        diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
        paths[0] = origin->path;
@@ -409,7 +409,7 @@ static struct origin *find_rename(struct scoreboard *sb,
        const char *paths[2];
 
        diff_setup(&diff_opts);
-       diff_opts.recursive = 1;
+       DIFF_OPT_SET(&diff_opts, RECURSIVE);
        diff_opts.detect_rename = DIFF_DETECT_RENAME;
        diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
        diff_opts.single_follow = origin->path;
@@ -1075,7 +1075,7 @@ static int find_copy_in_parent(struct scoreboard *sb,
                return 1; /* nothing remains for this target */
 
        diff_setup(&diff_opts);
-       diff_opts.recursive = 1;
+       DIFF_OPT_SET(&diff_opts, RECURSIVE);
        diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
 
        paths[0] = NULL;
@@ -1093,7 +1093,7 @@ static int find_copy_in_parent(struct scoreboard *sb,
        if ((opt & PICKAXE_BLAME_COPY_HARDEST)
            || ((opt & PICKAXE_BLAME_COPY_HARDER)
                && (!porigin || strcmp(target->path, porigin->path))))
-               diff_opts.find_copies_harder = 1;
+               DIFF_OPT_SET(&diff_opts, FIND_COPIES_HARDER);
 
        if (is_null_sha1(target->commit->object.sha1))
                do_diff_cache(parent->tree->object.sha1, &diff_opts);
@@ -1102,7 +1102,7 @@ static int find_copy_in_parent(struct scoreboard *sb,
                               target->commit->tree->object.sha1,
                               "", &diff_opts);
 
-       if (!diff_opts.find_copies_harder)
+       if (!DIFF_OPT_TST(&diff_opts, FIND_COPIES_HARDER))
                diffcore_std(&diff_opts);
 
        retval = 0;

diff --git a/builtin-diff-files.c b/builtin-diff-files.c
index 6cb30c8e12488f42521df71a844a86a2e9a968c7..046b7e34b5d5c6306d335dddbd5e283c8166e80e 100644 (file)
--- a/builtin-diff-files.c
+++ b/builtin-diff-files.c
@@ -31,5 +31,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
        if (!rev.diffopt.output_format)
                rev.diffopt.output_format = DIFF_FORMAT_RAW;
        result = run_diff_files_cmd(&rev, argc, argv);
-       return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
+       if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
+               return DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
+       return result;
 }

diff --git a/builtin-diff-index.c b/builtin-diff-index.c
index 81e7167438ecfc25a6f9a317af663034d653588e..556c506bfa7b5c5ef739d4203c585412a2764073 100644 (file)
--- a/builtin-diff-index.c
+++ b/builtin-diff-index.c
@@ -44,5 +44,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
                return -1;
        }
        result = run_diff_index(&rev, cached);
-       return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
+       if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
+               return DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
+       return result;
 }

diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c
index 0b591c87169ff4b8c2173bedb26d6ed1a8a84b68..2e13716eec985e7274d6f44646c94d8224964b7c 100644 (file)
--- a/builtin-diff-tree.c
+++ b/builtin-diff-tree.c
@@ -118,8 +118,8 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
        }
 
        if (!read_stdin)
-               return opt->diffopt.exit_with_status ?
-                   opt->diffopt.has_changes: 0;
+               return DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS)
+                       && DIFF_OPT_TST(&opt->diffopt, HAS_CHANGES);
 
        if (opt->diffopt.detect_rename)
                opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE |
@@ -134,5 +134,6 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
                else
                        diff_tree_stdin(line);
        }
-       return opt->diffopt.exit_with_status ? opt->diffopt.has_changes: 0;
+       return DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS)
+               && DIFF_OPT_TST(&opt->diffopt, HAS_CHANGES);
 }

diff --git a/builtin-diff.c b/builtin-diff.c
index f557d21929fe3df018f30e68c7943ead7f8eb4a1..1b615991e1fc6aaa329811cc9f7b615e20b00917 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -35,7 +35,7 @@ static void stuff_change(struct diff_options *opt,
            !hashcmp(old_sha1, new_sha1) && (old_mode == new_mode))
                return;
 
-       if (opt->reverse_diff) {
+       if (DIFF_OPT_TST(opt, REVERSE_DIFF)) {
                unsigned tmp;
                const unsigned char *tmp_u;
                const char *tmp_c;
@@ -253,13 +253,13 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                if (diff_setup_done(&rev.diffopt) < 0)
                        die("diff_setup_done failed");
        }
-       rev.diffopt.allow_external = 1;
-       rev.diffopt.recursive = 1;
+       DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL);
+       DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
 
        /* If the user asked for our exit code then don't start a
         * pager or we would end up reporting its exit code instead.
         */
-       if (!rev.diffopt.exit_with_status)
+       if (!DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
                setup_pager();
 
        /* Do we have --cached and not have a pending object, then
@@ -363,8 +363,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        else
                result = builtin_diff_combined(&rev, argc, argv,
                                             ent, ents);
-       if (rev.diffopt.exit_with_status)
-               result = rev.diffopt.has_changes;
+       if (DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS))
+               result = DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0;
 
        if (1 < rev.diffopt.skip_stat_unmatch)
                refresh_index_quietly();

diff --git a/builtin-log.c b/builtin-log.c
index 8b2bf632c534c5a9b5295884e517d70c7d2d9e86..b69b0b42f1b9072fb4ac2372ac656abdba9226db 100644 (file)
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -55,13 +55,13 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
        rev->abbrev = DEFAULT_ABBREV;
        rev->commit_format = CMIT_FMT_DEFAULT;
        rev->verbose_header = 1;
-       rev->diffopt.recursive = 1;
+       DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
        rev->show_root_diff = default_show_root;
        rev->subject_prefix = fmt_patch_subject_prefix;
        argc = setup_revisions(argc, argv, rev, "HEAD");
        if (rev->diffopt.pickaxe || rev->diffopt.filter)
                rev->always_show_header = 0;
-       if (rev->diffopt.follow_renames) {
+       if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) {
                rev->always_show_header = 0;
                if (rev->diffopt.nr_paths != 1)
                        usage("git logs can only follow renames on one pathname at a time");
@@ -185,11 +185,9 @@ int cmd_show(int argc, const char **argv, const char *prefix)
                        struct tag *t = (struct tag *)o;
 
                        printf("%stag %s%s\n\n",
-                                       diff_get_color(rev.diffopt.color_diff,
-                                               DIFF_COMMIT),
+                                       diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
                                        t->tag,
-                                       diff_get_color(rev.diffopt.color_diff,
-                                               DIFF_RESET));
+                                       diff_get_color_opt(&rev.diffopt, DIFF_RESET));
                        ret = show_object(o->sha1, 1);
                        objects[i].item = (struct object *)t->tagged;
                        i--;
@@ -197,11 +195,9 @@ int cmd_show(int argc, const char **argv, const char *prefix)
                }
                case OBJ_TREE:
                        printf("%stree %s%s\n\n",
-                                       diff_get_color(rev.diffopt.color_diff,
-                                               DIFF_COMMIT),
+                                       diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
                                        name,
-                                       diff_get_color(rev.diffopt.color_diff,
-                                               DIFF_RESET));
+                                       diff_get_color_opt(&rev.diffopt, DIFF_RESET));
                        read_tree_recursive((struct tree *)o, "", 0, 0, NULL,
                                        show_tree_object);
                        break;
@@ -487,7 +483,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        rev.combine_merges = 0;
        rev.ignore_merges = 1;
        rev.diffopt.msg_sep = "";
-       rev.diffopt.recursive = 1;
+       DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
 
        rev.subject_prefix = fmt_patch_subject_prefix;
        rev.extra_headers = extra_headers;
@@ -590,8 +586,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        if (!rev.diffopt.output_format)
                rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_PATCH;
 
-       if (!rev.diffopt.text)
-               rev.diffopt.binary = 1;
+       if (!DIFF_OPT_TST(&rev.diffopt, TEXT))
+               DIFF_OPT_SET(&rev.diffopt, BINARY);
 
        if (!output_directory && !use_stdout)
                output_directory = prefix;
@@ -747,7 +743,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
        revs.diff = 1;
        revs.combine_merges = 0;
        revs.ignore_merges = 1;
-       revs.diffopt.recursive = 1;
+       DIFF_OPT_SET(&revs.diffopt, RECURSIVE);
 
        if (add_pending_commit(head, &revs, 0))
                die("Unknown commit %s", head);

diff --git a/combine-diff.c b/combine-diff.c
index fe5a2a1953a06204ad6f1c045bd06dd984d3acc6..5a658dc0d54f91faee450e4f9ebacc1a6338478f 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -664,7 +664,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
        int mode_differs = 0;
        int i, show_hunks;
        int working_tree_file = is_null_sha1(elem->sha1);
-       int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
+       int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
        mmfile_t result_file;
 
        context = opt->context;
@@ -784,7 +784,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
 
        if (show_hunks || mode_differs || working_tree_file) {
                const char *abb;
-               int use_color = opt->color_diff;
+               int use_color = DIFF_OPT_TST(opt, COLOR_DIFF);
                const char *c_meta = diff_get_color(use_color, DIFF_METAINFO);
                const char *c_reset = diff_get_color(use_color, DIFF_RESET);
                int added = 0;
@@ -836,7 +836,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
                        dump_quoted_path("+++ /dev/", "null", c_meta, c_reset);
                else
                        dump_quoted_path("+++ b/", elem->path, c_meta, c_reset);
-               dump_sline(sline, cnt, num_parent, opt->color_diff);
+               dump_sline(sline, cnt, num_parent, DIFF_OPT_TST(opt, COLOR_DIFF));
        }
        free(result);
 
@@ -929,8 +929,8 @@ void diff_tree_combined(const unsigned char *sha1,
 
        diffopts = *opt;
        diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
-       diffopts.recursive = 1;
-       diffopts.allow_external = 0;
+       DIFF_OPT_SET(&diffopts, RECURSIVE);
+       DIFF_OPT_CLR(&diffopts, ALLOW_EXTERNAL);
 
        show_log_first = !!rev->loginfo && !rev->no_commit_id;
        needsep = 0;

diff --git a/diff-lib.c b/diff-lib.c
index da5571302df6ed418874fd4d7423853a7de5b52c..290a170b053c87b281570eccfa9f4e4b3fed1794 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -121,7 +121,7 @@ static int queue_diff(struct diff_options *o,
        } else {
                struct diff_filespec *d1, *d2;
 
-               if (o->reverse_diff) {
+               if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
                        unsigned tmp;
                        const char *tmp_c;
                        tmp = mode1; mode1 = mode2; mode2 = tmp;
@@ -188,8 +188,8 @@ static int handle_diff_files_args(struct rev_info *revs,
                else if (!strcmp(argv[1], "-n") ||
                                !strcmp(argv[1], "--no-index")) {
                        revs->max_count = -2;
-                       revs->diffopt.exit_with_status = 1;
-                       revs->diffopt.no_index = 1;
+                       DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
+                       DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
                }
                else if (!strcmp(argv[1], "-q"))
                        *silent = 1;
@@ -207,7 +207,7 @@ static int handle_diff_files_args(struct rev_info *revs,
                if (!is_in_index(revs->diffopt.paths[0]) ||
                                        !is_in_index(revs->diffopt.paths[1])) {
                        revs->max_count = -2;
-                       revs->diffopt.no_index = 1;
+                       DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
                }
        }
 
@@ -258,7 +258,7 @@ int setup_diff_no_index(struct rev_info *revs,
                        break;
                } else if (i < argc - 3 && !strcmp(argv[i], "--no-index")) {
                        i = argc - 3;
-                       revs->diffopt.exit_with_status = 1;
+                       DIFF_OPT_SET(&revs->diffopt, EXIT_WITH_STATUS);
                        break;
                }
        if (argc != i + 2 || (!is_outside_repo(argv[i + 1], nongit, prefix) &&
@@ -296,7 +296,7 @@ int setup_diff_no_index(struct rev_info *revs,
        else
                revs->diffopt.paths = argv + argc - 2;
        revs->diffopt.nr_paths = 2;
-       revs->diffopt.no_index = 1;
+       DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
        revs->max_count = -2;
        if (diff_setup_done(&revs->diffopt) < 0)
                die("diff_setup_done failed");
@@ -310,7 +310,7 @@ int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv)
        if (handle_diff_files_args(revs, argc, argv, &silent_on_removed))
                return -1;
 
-       if (revs->diffopt.no_index) {
+       if (DIFF_OPT_TST(&revs->diffopt, NO_INDEX)) {
                if (revs->diffopt.nr_paths != 2)
                        return error("need two files/directories with --no-index");
                if (queue_diff(&revs->diffopt, revs->diffopt.paths[0],
@@ -346,7 +346,8 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                struct cache_entry *ce = active_cache[i];
                int changed;
 
-               if (revs->diffopt.quiet && revs->diffopt.has_changes)
+               if (DIFF_OPT_TST(&revs->diffopt, QUIET) &&
+                       DIFF_OPT_TST(&revs->diffopt, HAS_CHANGES))
                        break;
 
                if (!ce_path_match(ce, revs->prune_data))
@@ -442,7 +443,7 @@ int run_diff_files(struct rev_info *revs, int silent_on_removed)
                        continue;
                }
                changed = ce_match_stat(ce, &st, 0);
-               if (!changed && !revs->diffopt.find_copies_harder)
+               if (!changed && !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                        continue;
                oldmode = ntohl(ce->ce_mode);
                newmode = ntohl(ce_mode_from_stat(ce, st.st_mode));
@@ -561,7 +562,7 @@ static int show_modified(struct rev_info *revs,
 
        oldmode = old->ce_mode;
        if (mode == oldmode && !hashcmp(sha1, old->sha1) &&
-           !revs->diffopt.find_copies_harder)
+           !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                return 0;
 
        mode = ntohl(mode);
@@ -581,7 +582,8 @@ static int diff_cache(struct rev_info *revs,
                struct cache_entry *ce = *ac;
                int same = (entries > 1) && ce_same_name(ce, ac[1]);
 
-               if (revs->diffopt.quiet && revs->diffopt.has_changes)
+               if (DIFF_OPT_TST(&revs->diffopt, QUIET) &&
+                       DIFF_OPT_TST(&revs->diffopt, HAS_CHANGES))
                        break;
 
                if (!ce_path_match(ce, pathspec))

diff --git a/diff.c b/diff.c
index a6aaaf7e5a91f3e5ad5f85341429c80a3452504e..67cce8b72ec094b516c50592afe2f168b18c0d4c 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -814,10 +814,10 @@ static void show_stats(struct diffstat_t* data, struct diff_options *options)
        }
 
        /* Find the longest filename and max number of changes */
-       reset = diff_get_color(options->color_diff, DIFF_RESET);
-       set = diff_get_color(options->color_diff, DIFF_PLAIN);
-       add_c = diff_get_color(options->color_diff, DIFF_FILE_NEW);
-       del_c = diff_get_color(options->color_diff, DIFF_FILE_OLD);
+       reset = diff_get_color_opt(options, DIFF_RESET);
+       set   = diff_get_color_opt(options, DIFF_PLAIN);
+       add_c = diff_get_color_opt(options, DIFF_FILE_NEW);
+       del_c = diff_get_color_opt(options, DIFF_FILE_OLD);
 
        for (i = 0; i < data->nr; i++) {
                struct diffstat_file *file = data->files[i];
@@ -1243,8 +1243,8 @@ static void builtin_diff(const char *name_a,
        mmfile_t mf1, mf2;
        const char *lbl[2];
        char *a_one, *b_two;
-       const char *set = diff_get_color(o->color_diff, DIFF_METAINFO);
-       const char *reset = diff_get_color(o->color_diff, DIFF_RESET);
+       const char *set = diff_get_color_opt(o, DIFF_METAINFO);
+       const char *reset = diff_get_color_opt(o, DIFF_RESET);
 
        a_one = quote_two("a/", name_a + (*name_a == '/'));
        b_two = quote_two("b/", name_b + (*name_b == '/'));
@@ -1277,7 +1277,7 @@ static void builtin_diff(const char *name_a,
                        goto free_ab_and_return;
                if (complete_rewrite) {
                        emit_rewrite_diff(name_a, name_b, one, two,
-                                       o->color_diff);
+                                       DIFF_OPT_TST(o, COLOR_DIFF));
                        o->found_changes = 1;
                        goto free_ab_and_return;
                }
@@ -1286,13 +1286,13 @@ static void builtin_diff(const char *name_a,
        if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
                die("unable to read files to diff");
 
-       if (!o->text &&
+       if (!DIFF_OPT_TST(o, TEXT) &&
            (diff_filespec_is_binary(one) || diff_filespec_is_binary(two))) {
                /* Quite common confusing case */
                if (mf1.size == mf2.size &&
                    !memcmp(mf1.ptr, mf2.ptr, mf1.size))
                        goto free_ab_and_return;
-               if (o->binary)
+               if (DIFF_OPT_TST(o, BINARY))
                        emit_binary_diff(&mf1, &mf2);
                else
                        printf("Binary files %s and %s differ\n",
@@ -1315,7 +1315,7 @@ static void builtin_diff(const char *name_a,
                memset(&xecfg, 0, sizeof(xecfg));
                memset(&ecbdata, 0, sizeof(ecbdata));
                ecbdata.label_path = lbl;
-               ecbdata.color_diff = o->color_diff;
+               ecbdata.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
                ecbdata.found_changesp = &o->found_changes;
                xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
                xecfg.ctxlen = o->context;
@@ -1331,11 +1331,11 @@ static void builtin_diff(const char *name_a,
                ecb.outf = xdiff_outf;
                ecb.priv = &ecbdata;
                ecbdata.xm.consume = fn_out_consume;
-               if (o->color_diff_words)
+               if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
                        ecbdata.diff_words =
                                xcalloc(1, sizeof(struct diff_words_data));
                xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
-               if (o->color_diff_words)
+               if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
                        free_diff_words_data(&ecbdata);
        }
 
@@ -1409,7 +1409,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
        data.xm.consume = checkdiff_consume;
        data.filename = name_b ? name_b : name_a;
        data.lineno = 0;
-       data.color_diff = o->color_diff;
+       data.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
 
        if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
                die("unable to read files to diff");
@@ -1853,7 +1853,7 @@ static void run_diff_cmd(const char *pgm,
                         struct diff_options *o,
                         int complete_rewrite)
 {
-       if (!o->allow_external)
+       if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
                pgm = NULL;
        else {
                const char *cmd = external_diff_attr(name);
@@ -1951,9 +1951,9 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
        }
 
        if (hashcmp(one->sha1, two->sha1)) {
-               int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
+               int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
 
-               if (o->binary) {
+               if (DIFF_OPT_TST(o, BINARY)) {
                        mmfile_t mf;
                        if ((!fill_mmfile(&mf, one) && diff_filespec_is_binary(one)) ||
                            (!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
@@ -2045,7 +2045,10 @@ void diff_setup(struct diff_options *options)
 
        options->change = diff_change;
        options->add_remove = diff_addremove;
-       options->color_diff = diff_use_color_default;
+       if (diff_use_color_default)
+               DIFF_OPT_SET(options, COLOR_DIFF);
+       else
+               DIFF_OPT_CLR(options, COLOR_DIFF);
        options->detect_rename = diff_detect_rename_default;
 }
 
@@ -2064,7 +2067,7 @@ int diff_setup_done(struct diff_options *options)
        if (count > 1)
                die("--name-only, --name-status, --check and -s are mutually exclusive");
 
-       if (options->find_copies_harder)
+       if (DIFF_OPT_TST(options, FIND_COPIES_HARDER))
                options->detect_rename = DIFF_DETECT_COPY;
 
        if (options->output_format & (DIFF_FORMAT_NAME |
@@ -2088,12 +2091,12 @@ int diff_setup_done(struct diff_options *options)
                                      DIFF_FORMAT_SHORTSTAT |
                                      DIFF_FORMAT_SUMMARY |
                                      DIFF_FORMAT_CHECKDIFF))
-               options->recursive = 1;
+               DIFF_OPT_SET(options, RECURSIVE);
        /*
         * Also pickaxe would not work very well if you do not say recursive
         */
        if (options->pickaxe)
-               options->recursive = 1;
+               DIFF_OPT_SET(options, RECURSIVE);
 
        if (options->detect_rename && options->rename_limit < 0)
                options->rename_limit = diff_rename_limit_default;
@@ -2115,9 +2118,9 @@ int diff_setup_done(struct diff_options *options)
         * to have found.  It does not make sense not to return with
         * exit code in such a case either.
         */
-       if (options->quiet) {
+       if (DIFF_OPT_TST(options, QUIET)) {
                options->output_format = DIFF_FORMAT_NO_OUTPUT;
-               options->exit_with_status = 1;
+               DIFF_OPT_SET(options, EXIT_WITH_STATUS);
        }
 
        /*
@@ -2125,7 +2128,7 @@ int diff_setup_done(struct diff_options *options)
         * upon the first hit.  We need to run diff as usual.
         */
        if (options->pickaxe || options->filter)
-               options->quiet = 0;
+               DIFF_OPT_CLR(options, QUIET);
 
        return 0;
 }
@@ -2188,15 +2191,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
                options->output_format |= DIFF_FORMAT_PATCH;
        else if (!strcmp(arg, "--raw"))
                options->output_format |= DIFF_FORMAT_RAW;
-       else if (!strcmp(arg, "--patch-with-raw")) {
+       else if (!strcmp(arg, "--patch-with-raw"))
                options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_RAW;
-       }
-       else if (!strcmp(arg, "--numstat")) {
+       else if (!strcmp(arg, "--numstat"))
                options->output_format |= DIFF_FORMAT_NUMSTAT;
-       }
-       else if (!strcmp(arg, "--shortstat")) {
+       else if (!strcmp(arg, "--shortstat"))
                options->output_format |= DIFF_FORMAT_SHORTSTAT;
-       }
        else if (!prefixcmp(arg, "--stat")) {
                char *end;
                int width = options->stat_width;
@@ -2228,33 +2228,30 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
                options->output_format |= DIFF_FORMAT_CHECKDIFF;
        else if (!strcmp(arg, "--summary"))
                options->output_format |= DIFF_FORMAT_SUMMARY;
-       else if (!strcmp(arg, "--patch-with-stat")) {
+       else if (!strcmp(arg, "--patch-with-stat"))
                options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_DIFFSTAT;
-       }
        else if (!strcmp(arg, "-z"))
                options->line_termination = 0;
        else if (!prefixcmp(arg, "-l"))
                options->rename_limit = strtoul(arg+2, NULL, 10);
        else if (!strcmp(arg, "--full-index"))
-               options->full_index = 1;
+               DIFF_OPT_SET(options, FULL_INDEX);
        else if (!strcmp(arg, "--binary")) {
                options->output_format |= DIFF_FORMAT_PATCH;
-               options->binary = 1;
-       }
-       else if (!strcmp(arg, "-a") || !strcmp(arg, "--text")) {
-               options->text = 1;
+               DIFF_OPT_SET(options, BINARY);
        }
+       else if (!strcmp(arg, "-a") || !strcmp(arg, "--text"))
+               DIFF_OPT_SET(options, TEXT);
        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, "-R"))
-               options->reverse_diff = 1;
+               DIFF_OPT_SET(options, REVERSE_DIFF);
        else if (!prefixcmp(arg, "-S"))
                options->pickaxe = arg + 2;
-       else if (!strcmp(arg, "-s")) {
+       else if (!strcmp(arg, "-s"))
                options->output_format |= DIFF_FORMAT_NO_OUTPUT;
-       }
        else if (!prefixcmp(arg, "-O"))
                options->orderfile = arg + 2;
        else if (!prefixcmp(arg, "--diff-filter="))
@@ -2264,28 +2261,25 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        else if (!strcmp(arg, "--pickaxe-regex"))
                options->pickaxe_opts = DIFF_PICKAXE_REGEX;
        else if (!prefixcmp(arg, "-B")) {
-               if ((options->break_opt =
-                    diff_scoreopt_parse(arg)) == -1)
+               if ((options->break_opt = diff_scoreopt_parse(arg)) == -1)
                        return -1;
        }
        else if (!prefixcmp(arg, "-M")) {
-               if ((options->rename_score =
-                    diff_scoreopt_parse(arg)) == -1)
+               if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
                        return -1;
                options->detect_rename = DIFF_DETECT_RENAME;
        }
        else if (!prefixcmp(arg, "-C")) {
                if (options->detect_rename == DIFF_DETECT_COPY)
-                       options->find_copies_harder = 1;
-               if ((options->rename_score =
-                    diff_scoreopt_parse(arg)) == -1)
+                       DIFF_OPT_SET(options, FIND_COPIES_HARDER);
+               if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
                        return -1;
                options->detect_rename = DIFF_DETECT_COPY;
        }
        else if (!strcmp(arg, "--find-copies-harder"))
-               options->find_copies_harder = 1;
+               DIFF_OPT_SET(options, FIND_COPIES_HARDER);
        else if (!strcmp(arg, "--follow"))
-               options->follow_renames = 1;
+               DIFF_OPT_SET(options, FOLLOW_RENAMES);
        else if (!strcmp(arg, "--abbrev"))
                options->abbrev = DEFAULT_ABBREV;
        else if (!prefixcmp(arg, "--abbrev=")) {
@@ -2296,9 +2290,9 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
                        options->abbrev = 40;
        }
        else if (!strcmp(arg, "--color"))
-               options->color_diff = 1;
+               DIFF_OPT_SET(options, COLOR_DIFF);
        else if (!strcmp(arg, "--no-color"))
-               options->color_diff = 0;
+               DIFF_OPT_CLR(options, COLOR_DIFF);
        else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space"))
                options->xdl_opts |= XDF_IGNORE_WHITESPACE;
        else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change"))
@@ -2306,17 +2300,17 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        else if (!strcmp(arg, "--ignore-space-at-eol"))
                options->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
        else if (!strcmp(arg, "--color-words"))
-               options->color_diff = options->color_diff_words = 1;
+               options->flags |= DIFF_OPT_COLOR_DIFF | DIFF_OPT_COLOR_DIFF_WORDS;
        else if (!strcmp(arg, "--no-renames"))
                options->detect_rename = 0;
        else if (!strcmp(arg, "--exit-code"))
-               options->exit_with_status = 1;
+               DIFF_OPT_SET(options, EXIT_WITH_STATUS);
        else if (!strcmp(arg, "--quiet"))
-               options->quiet = 1;
+               DIFF_OPT_SET(options, QUIET);
        else if (!strcmp(arg, "--ext-diff"))
-               options->allow_external = 1;
+               DIFF_OPT_SET(options, ALLOW_EXTERNAL);
        else if (!strcmp(arg, "--no-ext-diff"))
-               options->allow_external = 0;
+               DIFF_OPT_CLR(options, ALLOW_EXTERNAL);
        else
                return 0;
        return 1;
@@ -3071,7 +3065,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
                         * to determine how many paths were dirty only
                         * due to stat info mismatch.
                         */
-                       if (!diffopt->no_index)
+                       if (!DIFF_OPT_TST(diffopt, NO_INDEX))
                                diffopt->skip_stat_unmatch++;
                        diff_free_filepair(p);
                }
@@ -3082,10 +3076,10 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
 
 void diffcore_std(struct diff_options *options)
 {
-       if (options->quiet)
+       if (DIFF_OPT_TST(options, QUIET))
                return;
 
-       if (options->skip_stat_unmatch && !options->find_copies_harder)
+       if (options->skip_stat_unmatch && !DIFF_OPT_TST(options, FIND_COPIES_HARDER))
                diffcore_skip_stat_unmatch(options);
        if (options->break_opt != -1)
                diffcore_break(options->break_opt);
@@ -3100,7 +3094,10 @@ void diffcore_std(struct diff_options *options)
        diff_resolve_rename_copy();
        diffcore_apply_filter(options->filter);
 
-       options->has_changes = !!diff_queued_diff.nr;
+       if (diff_queued_diff.nr)
+               DIFF_OPT_SET(options, HAS_CHANGES);
+       else
+               DIFF_OPT_CLR(options, HAS_CHANGES);
 }
 
 
@@ -3124,7 +3121,7 @@ void diff_addremove(struct diff_options *options,
         * Before the final output happens, they are pruned after
         * merged into rename/copy pairs as appropriate.
         */
-       if (options->reverse_diff)
+       if (DIFF_OPT_TST(options, REVERSE_DIFF))
                addremove = (addremove == '+' ? '-' :
                             addremove == '-' ? '+' : addremove);
 
@@ -3139,7 +3136,7 @@ void diff_addremove(struct diff_options *options,
                fill_filespec(two, sha1, mode);
 
        diff_queue(&diff_queued_diff, one, two);
-       options->has_changes = 1;
+       DIFF_OPT_SET(options, HAS_CHANGES);
 }
 
 void diff_change(struct diff_options *options,
@@ -3151,7 +3148,7 @@ void diff_change(struct diff_options *options,
        char concatpath[PATH_MAX];
        struct diff_filespec *one, *two;
 
-       if (options->reverse_diff) {
+       if (DIFF_OPT_TST(options, REVERSE_DIFF)) {
                unsigned tmp;
                const unsigned char *tmp_c;
                tmp = old_mode; old_mode = new_mode; new_mode = tmp;
@@ -3165,7 +3162,7 @@ void diff_change(struct diff_options *options,
        fill_filespec(two, new_sha1, new_mode);
 
        diff_queue(&diff_queued_diff, one, two);
-       options->has_changes = 1;
+       DIFF_OPT_SET(options, HAS_CHANGES);
 }
 
 void diff_unmerge(struct diff_options *options,

diff --git a/diff.h b/diff.h
index 4546aad219742e4ad878937dbd05436c93d298b9..6ff2b0e3189550afeb1a27c0adec0bfee90261f4 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -43,26 +43,32 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
 
 #define DIFF_FORMAT_CALLBACK   0x1000
 
+#define DIFF_OPT_RECURSIVE           (1 <<  0)
+#define DIFF_OPT_TREE_IN_RECURSIVE   (1 <<  1)
+#define DIFF_OPT_BINARY              (1 <<  2)
+#define DIFF_OPT_TEXT                (1 <<  3)
+#define DIFF_OPT_FULL_INDEX          (1 <<  4)
+#define DIFF_OPT_SILENT_ON_REMOVE    (1 <<  5)
+#define DIFF_OPT_FIND_COPIES_HARDER  (1 <<  6)
+#define DIFF_OPT_FOLLOW_RENAMES      (1 <<  7)
+#define DIFF_OPT_COLOR_DIFF          (1 <<  8)
+#define DIFF_OPT_COLOR_DIFF_WORDS    (1 <<  9)
+#define DIFF_OPT_HAS_CHANGES         (1 << 10)
+#define DIFF_OPT_QUIET               (1 << 11)
+#define DIFF_OPT_NO_INDEX            (1 << 12)
+#define DIFF_OPT_ALLOW_EXTERNAL      (1 << 13)
+#define DIFF_OPT_EXIT_WITH_STATUS    (1 << 14)
+#define DIFF_OPT_REVERSE_DIFF        (1 << 15)
+#define DIFF_OPT_TST(opts, flag)    ((opts)->flags & DIFF_OPT_##flag)
+#define DIFF_OPT_SET(opts, flag)    ((opts)->flags |= DIFF_OPT_##flag)
+#define DIFF_OPT_CLR(opts, flag)    ((opts)->flags &= ~DIFF_OPT_##flag)
+
 struct diff_options {
        const char *filter;
        const char *orderfile;
        const char *pickaxe;
        const char *single_follow;
-       unsigned recursive:1,
-                tree_in_recursive:1,
-                binary:1,
-                text:1,
-                full_index:1,
-                silent_on_remove:1,
-                find_copies_harder:1,
-                follow_renames:1,
-                color_diff:1,
-                color_diff_words:1,
-                has_changes:1,
-                quiet:1,
-                no_index:1,
-                allow_external:1,
-                exit_with_status:1;
+       unsigned flags;
        int context;
        int break_opt;
        int detect_rename;
@@ -71,7 +77,6 @@ struct diff_options {
        int output_format;
        int pickaxe_opts;
        int rename_score;
-       int reverse_diff;
        int rename_limit;
        int setup;
        int abbrev;
@@ -105,6 +110,9 @@ enum color_diff {
        DIFF_WHITESPACE = 7,
 };
 const char *diff_get_color(int diff_use_color, enum color_diff ix);
+#define diff_get_color_opt(o, ix) \
+       diff_get_color(DIFF_OPT_TST((o), COLOR_DIFF), ix)
+
 
 extern const char mime_boundary_leader[];
 

diff --git a/log-tree.c b/log-tree.c
index a34beb0b027eaec59fa75d1fa18324a8f24eb13d..1f3fcf16ad7a101eb9eab53da84bd2640f97ab00 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -245,8 +245,7 @@ void show_log(struct rev_info *opt, const char *sep)
                        opt->diffopt.stat_sep = buffer;
                }
        } else if (opt->commit_format != CMIT_FMT_USERFORMAT) {
-               fputs(diff_get_color(opt->diffopt.color_diff, DIFF_COMMIT),
-                     stdout);
+               fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout);
                if (opt->commit_format != CMIT_FMT_ONELINE)
                        fputs("commit ", stdout);
                if (commit->object.flags & BOUNDARY)
@@ -266,8 +265,7 @@ void show_log(struct rev_info *opt, const char *sep)
                               diff_unique_abbrev(parent->object.sha1,
                                                  abbrev_commit));
                show_decorations(commit);
-               printf("%s",
-                      diff_get_color(opt->diffopt.color_diff, DIFF_RESET));
+               printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET));
                putchar(opt->commit_format == CMIT_FMT_ONELINE ? ' ' : '\n');
                if (opt->reflog_info) {
                        show_reflog_message(opt->reflog_info,

diff --git a/merge-recursive.c b/merge-recursive.c
index 6c6f595fbc7da09a41228e09cd2c5ef48b91f3f0..9a1e2f269dc5eff3b7544507a1e483948cc1254d 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -366,7 +366,7 @@ static struct path_list *get_renames(struct tree *tree,
 
        renames = xcalloc(1, sizeof(struct path_list));
        diff_setup(&opts);
-       opts.recursive = 1;
+       DIFF_OPT_SET(&opts, RECURSIVE);
        opts.detect_rename = DIFF_DETECT_RENAME;
        opts.rename_limit = rename_limit;
        opts.output_format = DIFF_FORMAT_NO_OUTPUT;

diff --git a/patch-ids.c b/patch-ids.c
index a288fac9923a84cd05e8e7378f580ea3774e2a03..3be5d3165e0009761a0ca69e15e4a9132c6cfaff 100644 (file)
--- a/patch-ids.c
+++ b/patch-ids.c
@@ -121,7 +121,7 @@ int init_patch_ids(struct patch_ids *ids)
 {
        memset(ids, 0, sizeof(*ids));
        diff_setup(&ids->diffopts);
-       ids->diffopts.recursive = 1;
+       DIFF_OPT_SET(&ids->diffopts, RECURSIVE);
        if (diff_setup_done(&ids->diffopts) < 0)
                return error("diff_setup_done failed");
        return 0;

diff --git a/revision.c b/revision.c
index e76da0d448f81d8b6b496990bc2568fef3662671..f5b0e83ee35146a2cae9b71a9914bd818268d4ac 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -250,7 +250,7 @@ static void file_add_remove(struct diff_options *options,
        }
        tree_difference = diff;
        if (tree_difference == REV_TREE_DIFFERENT)
-               options->has_changes = 1;
+               DIFF_OPT_SET(options, HAS_CHANGES);
 }
 
 static void file_change(struct diff_options *options,
@@ -260,7 +260,7 @@ static void file_change(struct diff_options *options,
                 const char *base, const char *path)
 {
        tree_difference = REV_TREE_DIFFERENT;
-       options->has_changes = 1;
+       DIFF_OPT_SET(options, HAS_CHANGES);
 }
 
 static int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2)
@@ -270,7 +270,7 @@ static int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree
        if (!t2)
                return REV_TREE_DIFFERENT;
        tree_difference = REV_TREE_SAME;
-       revs->pruning.has_changes = 0;
+       DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
        if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "",
                           &revs->pruning) < 0)
                return REV_TREE_DIFFERENT;
@@ -294,7 +294,7 @@ static int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1)
        init_tree_desc(&empty, "", 0);
 
        tree_difference = REV_TREE_SAME;
-       revs->pruning.has_changes = 0;
+       DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
        retval = diff_tree(&empty, &real, "", &revs->pruning);
        free(tree);
 
@@ -662,8 +662,8 @@ void init_revisions(struct rev_info *revs, const char *prefix)
        revs->abbrev = DEFAULT_ABBREV;
        revs->ignore_merges = 1;
        revs->simplify_history = 1;
-       revs->pruning.recursive = 1;
-       revs->pruning.quiet = 1;
+       DIFF_OPT_SET(&revs->pruning, RECURSIVE);
+       DIFF_OPT_SET(&revs->pruning, QUIET);
        revs->pruning.add_remove = file_add_remove;
        revs->pruning.change = file_change;
        revs->lifo = 1;
@@ -1054,13 +1054,13 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                        }
                        if (!strcmp(arg, "-r")) {
                                revs->diff = 1;
-                               revs->diffopt.recursive = 1;
+                               DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
                                continue;
                        }
                        if (!strcmp(arg, "-t")) {
                                revs->diff = 1;
-                               revs->diffopt.recursive = 1;
-                               revs->diffopt.tree_in_recursive = 1;
+                               DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
+                               DIFF_OPT_SET(&revs->diffopt, TREE_IN_RECURSIVE);
                                continue;
                        }
                        if (!strcmp(arg, "-m")) {
@@ -1242,7 +1242,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                revs->diff = 1;
 
        /* Pickaxe and rename following needs diffs */
-       if (revs->diffopt.pickaxe || revs->diffopt.follow_renames)
+       if (revs->diffopt.pickaxe || DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
                revs->diff = 1;
 
        if (revs->topo_order)
@@ -1251,7 +1251,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
        if (revs->prune_data) {
                diff_tree_setup_paths(revs->prune_data, &revs->pruning);
                /* Can't prune commits with rename following: the paths change.. */
-               if (!revs->diffopt.follow_renames)
+               if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
                        revs->prune_fn = try_to_simplify_commit;
                if (!revs->full_diff)
                        diff_tree_setup_paths(revs->prune_data, &revs->diffopt);

diff --git a/tree-diff.c b/tree-diff.c
index 7c261fd7c3b38d2c2dbd722617c628d98848cbc1..aa0a100295c5c48483c6bfbbfc0105b70680becc 100644 (file)
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -39,7 +39,7 @@ static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2, const
                show_entry(opt, "+", t2, base, baselen);
                return 1;
        }
-       if (!opt->find_copies_harder && !hashcmp(sha1, sha2) && mode1 == mode2)
+       if (!DIFF_OPT_TST(opt, FIND_COPIES_HARDER) && !hashcmp(sha1, sha2) && mode1 == mode2)
                return 0;
 
        /*
@@ -52,10 +52,10 @@ static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2, const
                return 0;
        }
 
-       if (opt->recursive && S_ISDIR(mode1)) {
+       if (DIFF_OPT_TST(opt, RECURSIVE) && S_ISDIR(mode1)) {
                int retval;
                char *newbase = malloc_base(base, baselen, path1, pathlen1);
-               if (opt->tree_in_recursive)
+               if (DIFF_OPT_TST(opt, TREE_IN_RECURSIVE))
                        opt->change(opt, mode1, mode2,
                                    sha1, sha2, base, path1);
                retval = diff_tree_sha1(sha1, sha2, newbase, opt);
@@ -206,7 +206,7 @@ static void show_entry(struct diff_options *opt, const char *prefix, struct tree
        const char *path;
        const unsigned char *sha1 = tree_entry_extract(desc, &path, &mode);
 
-       if (opt->recursive && S_ISDIR(mode)) {
+       if (DIFF_OPT_TST(opt, RECURSIVE) && S_ISDIR(mode)) {
                enum object_type type;
                int pathlen = tree_entry_len(path, sha1);
                char *newbase = malloc_base(base, baselen, path, pathlen);
@@ -257,7 +257,7 @@ int diff_tree(struct tree_desc *t1, struct tree_desc *t2, const char *base, stru
        int baselen = strlen(base);
 
        for (;;) {
-               if (opt->quiet && opt->has_changes)
+               if (DIFF_OPT_TST(opt, QUIET) && DIFF_OPT_TST(opt, HAS_CHANGES))
                        break;
                if (opt->nr_paths) {
                        skip_uninteresting(t1, base, baselen, opt);
@@ -315,7 +315,7 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
        q->nr = 0;
 
        diff_setup(&diff_opts);
-       diff_opts.recursive = 1;
+       DIFF_OPT_SET(&diff_opts, RECURSIVE);
        diff_opts.detect_rename = DIFF_DETECT_RENAME;
        diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
        diff_opts.single_follow = opt->paths[0];
@@ -380,7 +380,7 @@ int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const cha
        init_tree_desc(&t1, tree1, size1);
        init_tree_desc(&t2, tree2, size2);
        retval = diff_tree(&t1, &t2, base, opt);
-       if (opt->follow_renames && diff_might_be_rename()) {
+       if (DIFF_OPT_TST(opt, FOLLOW_RENAMES) && diff_might_be_rename()) {
                init_tree_desc(&t1, tree1, size1);
                init_tree_desc(&t2, tree2, size2);
                try_to_follow_renames(&t1, &t2, base, opt);