merge-recursive: shrink rename_conflict_info

The rename_conflict_info struct used both a pair and a stage_data which
were taken from a rename struct.  Just use the original rename struct.
This will also allow us to start making other simplifications to the
code.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/merge-recursive.c b/merge-recursive.c
index c4a2ef2a374fa456dab9f607c24dd9282d41ff97..e05f8f22f5ee45af71920015708995e06e91b111 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -238,24 +238,20 @@ struct rename {
 
 struct rename_conflict_info {
        enum rename_type rename_type;
-       struct diff_filepair *pair1;
-       struct diff_filepair *pair2;
+       struct rename *ren1;
+       struct rename *ren2;
        const char *branch1;
        const char *branch2;
-       struct stage_data *dst_entry1;
-       struct stage_data *dst_entry2;
        struct diff_filespec ren1_other;
        struct diff_filespec ren2_other;
 };
 
 static inline void setup_rename_conflict_info(enum rename_type rename_type,
-                                             struct diff_filepair *pair1,
-                                             struct diff_filepair *pair2,
+                                             struct merge_options *opt,
+                                             struct rename *ren1,
+                                             struct rename *ren2,
                                              const char *branch1,
                                              const char *branch2,
-                                             struct stage_data *dst_entry1,
-                                             struct stage_data *dst_entry2,
-                                             struct merge_options *opt,
                                              struct stage_data *src_entry1,
                                              struct stage_data *src_entry2)
 {
@@ -269,31 +265,27 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type,
         * ensure that branch1 == opt->branch1.  So, simply flip arguments
         * around if we don't have that.
         */
-       if (dst_entry2 && branch1 != opt->branch1) {
+       if (ren2 && branch1 != opt->branch1) {
                setup_rename_conflict_info(rename_type,
-                                          pair2,      pair1,
-                                          branch2,    branch1,
-                                          dst_entry2, dst_entry1,
                                           opt,
+                                          ren2,       ren1,
+                                          branch2,    branch1,
                                           src_entry2, src_entry1);
                return;
        }
 
        ci = xcalloc(1, sizeof(struct rename_conflict_info));
        ci->rename_type = rename_type;
-       ci->pair1 = pair1;
+       ci->ren1 = ren1;
+       ci->ren2 = ren2;
        ci->branch1 = branch1;
        ci->branch2 = branch2;
 
-       ci->dst_entry1 = dst_entry1;
-       dst_entry1->rename_conflict_info = ci;
-       dst_entry1->processed = 0;
+       ci->ren1->dst_entry->processed = 0;
+       ci->ren1->dst_entry->rename_conflict_info = ci;
 
-       assert(!pair2 == !dst_entry2);
-       if (dst_entry2) {
-               ci->dst_entry2 = dst_entry2;
-               ci->pair2 = pair2;
-               dst_entry2->rename_conflict_info = ci;
+       if (ren2) {
+               ci->ren2->dst_entry->rename_conflict_info = ci;
        }
 
        /*
@@ -305,7 +297,7 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type,
            rename_type == RENAME_TWO_FILES_TO_ONE) {
                ostage1 = opt->branch1 == branch1 ? 3 : 2;
 
-               ci->ren1_other.path = pair1->one->path;
+               ci->ren1_other.path = ren1->pair->one->path;
                oidcpy(&ci->ren1_other.oid, &src_entry1->stages[ostage1].oid);
                ci->ren1_other.mode = src_entry1->stages[ostage1].mode;
        }
@@ -313,7 +305,7 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type,
        if (rename_type == RENAME_TWO_FILES_TO_ONE) {
                ostage2 = ostage1 ^ 1;
 
-               ci->ren2_other.path = pair2->one->path;
+               ci->ren2_other.path = ren2->pair->one->path;
                oidcpy(&ci->ren2_other.oid, &src_entry2->stages[ostage2].oid);
                ci->ren2_other.mode = src_entry2->stages[ostage2].mode;
        }
@@ -1694,8 +1686,8 @@ static int handle_rename_add(struct merge_options *opt,
                             struct rename_conflict_info *ci)
 {
        /* a was renamed to c, and a separate c was added. */
-       struct diff_filespec *a = ci->pair1->one;
-       struct diff_filespec *c = ci->pair1->two;
+       struct diff_filespec *a = ci->ren1->pair->one;
+       struct diff_filespec *c = ci->ren1->pair->two;
        char *path = c->path;
        char *prev_path_desc;
        struct merge_file_info mfi;
@@ -1718,8 +1710,8 @@ static int handle_rename_add(struct merge_options *opt,
                                     c->path, a->path, NULL,
                                     ci->branch1, ci->branch2,
                                     &mfi.oid, mfi.mode,
-                                    &ci->dst_entry1->stages[other_stage].oid,
-                                    ci->dst_entry1->stages[other_stage].mode);
+                                    &ci->ren1->dst_entry->stages[other_stage].oid,
+                                    ci->ren1->dst_entry->stages[other_stage].mode);
 }
 
 static char *find_path_for_conflict(struct merge_options *opt,
@@ -1750,9 +1742,9 @@ static int handle_rename_rename_1to2(struct merge_options *opt,
        struct merge_file_info mfi;
        struct diff_filespec other;
        struct diff_filespec *add;
-       struct diff_filespec *o = ci->pair1->one;
-       struct diff_filespec *a = ci->pair1->two;
-       struct diff_filespec *b = ci->pair2->two;
+       struct diff_filespec *o = ci->ren1->pair->one;
+       struct diff_filespec *a = ci->ren1->pair->two;
+       struct diff_filespec *b = ci->ren2->pair->two;
        char *path_desc;
 
        output(opt, 1, _("CONFLICT (rename/rename): "
@@ -1788,14 +1780,14 @@ static int handle_rename_rename_1to2(struct merge_options *opt,
                 * such cases, we should keep the added file around,
                 * resolving the conflict at that path in its favor.
                 */
-               add = filespec_from_entry(&other, ci->dst_entry1, 2 ^ 1);
+               add = filespec_from_entry(&other, ci->ren1->dst_entry, 2 ^ 1);
                if (add) {
                        if (update_file(opt, 0, &add->oid, add->mode, a->path))
                                return -1;
                }
                else
                        remove_file_from_index(opt->repo->index, a->path);
-               add = filespec_from_entry(&other, ci->dst_entry2, 3 ^ 1);
+               add = filespec_from_entry(&other, ci->ren2->dst_entry, 3 ^ 1);
                if (add) {
                        if (update_file(opt, 0, &add->oid, add->mode, b->path))
                                return -1;
@@ -1808,7 +1800,7 @@ static int handle_rename_rename_1to2(struct merge_options *opt,
                 * rename/add collision.  If not, we can write the file out
                 * to the specified location.
                 */
-               add = filespec_from_entry(&other, ci->dst_entry1, 2 ^ 1);
+               add = filespec_from_entry(&other, ci->ren1->dst_entry, 2 ^ 1);
                if (add) {
                        if (handle_file_collision(opt, a->path,
                                                  NULL, NULL,
@@ -1827,7 +1819,7 @@ static int handle_rename_rename_1to2(struct merge_options *opt,
                                return -1;
                }
 
-               add = filespec_from_entry(&other, ci->dst_entry2, 3 ^ 1);
+               add = filespec_from_entry(&other, ci->ren2->dst_entry, 3 ^ 1);
                if (add) {
                        if (handle_file_collision(opt, b->path,
                                                  NULL, NULL,
@@ -1854,10 +1846,10 @@ static int handle_rename_rename_2to1(struct merge_options *opt,
                                     struct rename_conflict_info *ci)
 {
        /* Two files, a & b, were renamed to the same thing, c. */
-       struct diff_filespec *a = ci->pair1->one;
-       struct diff_filespec *b = ci->pair2->one;
-       struct diff_filespec *c1 = ci->pair1->two;
-       struct diff_filespec *c2 = ci->pair2->two;
+       struct diff_filespec *a = ci->ren1->pair->one;
+       struct diff_filespec *b = ci->ren2->pair->one;
+       struct diff_filespec *c1 = ci->ren1->pair->two;
+       struct diff_filespec *c2 = ci->ren2->pair->two;
        char *path = c1->path; /* == c2->path */
        char *path_side_1_desc;
        char *path_side_2_desc;
@@ -2732,13 +2724,11 @@ static int process_renames(struct merge_options *opt,
                                             ren2->pair->two);
                        }
                        setup_rename_conflict_info(rename_type,
-                                                  ren1->pair,
-                                                  ren2->pair,
+                                                  opt,
+                                                  ren1,
+                                                  ren2,
                                                   branch1,
                                                   branch2,
-                                                  ren1->dst_entry,
-                                                  ren2->dst_entry,
-                                                  opt,
                                                   NULL,
                                                   NULL);
                } else if ((lookup = string_list_lookup(renames2Dst, ren1_dst))) {
@@ -2759,13 +2749,11 @@ static int process_renames(struct merge_options *opt,
                        ren2->src_entry->processed = 1;
 
                        setup_rename_conflict_info(RENAME_TWO_FILES_TO_ONE,
-                                                  ren1->pair,
-                                                  ren2->pair,
+                                                  opt,
+                                                  ren1,
+                                                  ren2,
                                                   branch1,
                                                   branch2,
-                                                  ren1->dst_entry,
-                                                  ren2->dst_entry,
-                                                  opt,
                                                   ren1->src_entry,
                                                   ren2->src_entry);
 
@@ -2802,24 +2790,20 @@ static int process_renames(struct merge_options *opt,
                        if (oid_eq(&src_other.oid, &null_oid) &&
                            ren1->add_turned_into_rename) {
                                setup_rename_conflict_info(RENAME_VIA_DIR,
-                                                          ren1->pair,
+                                                          opt,
+                                                          ren1,
                                                           NULL,
                                                           branch1,
                                                           branch2,
-                                                          ren1->dst_entry,
-                                                          NULL,
-                                                          opt,
                                                           NULL,
                                                           NULL);
                        } else if (oid_eq(&src_other.oid, &null_oid)) {
                                setup_rename_conflict_info(RENAME_DELETE,
-                                                          ren1->pair,
+                                                          opt,
+                                                          ren1,
                                                           NULL,
                                                           branch1,
                                                           branch2,
-                                                          ren1->dst_entry,
-                                                          NULL,
-                                                          opt,
                                                           NULL,
                                                           NULL);
                        } else if ((dst_other.mode == ren1->pair->two->mode) &&
@@ -2848,13 +2832,11 @@ static int process_renames(struct merge_options *opt,
                                 * file, then the merge will be clean.
                                 */
                                setup_rename_conflict_info(RENAME_ADD,
-                                                          ren1->pair,
+                                                          opt,
+                                                          ren1,
                                                           NULL,
                                                           branch1,
                                                           branch2,
-                                                          ren1->dst_entry,
-                                                          NULL,
-                                                          opt,
                                                           ren1->src_entry,
                                                           NULL);
                        } else
@@ -2876,13 +2858,11 @@ static int process_renames(struct merge_options *opt,
                                }
                                update_entry(ren1->dst_entry, o, a, b);
                                setup_rename_conflict_info(RENAME_NORMAL,
-                                                          ren1->pair,
+                                                          opt,
+                                                          ren1,
                                                           NULL,
                                                           branch1,
                                                           NULL,
-                                                          ren1->dst_entry,
-                                                          NULL,
-                                                          opt,
                                                           NULL,
                                                           NULL);
                        }
@@ -3119,15 +3099,15 @@ static int handle_content_merge(struct merge_options *opt,
        b.mode = b_mode;
 
        if (ci) {
-               struct diff_filepair *pair1 = ci->pair1;
+               struct diff_filepair *pair1 = ci->ren1->pair;
 
                path1 = (opt->branch1 == ci->branch1) ?
                        pair1->two->path : pair1->one->path;
-               /* If ci->pair2 != NULL, we are in
+               /* If ci->ren2->pair != NULL, we are in
                 * RENAME_ONE_FILE_TO_ONE case.  Otherwise, we have a
                 * normal rename.
                 */
-               path2 = (ci->pair2 ||
+               path2 = ((ci->ren2 && ci->ren2->pair) ||
                         opt->branch2 == ci->branch1) ?
                        pair1->two->path : pair1->one->path;
                one.path = pair1->one->path;
@@ -3264,7 +3244,7 @@ static int process_entry(struct merge_options *opt,
                        break;
                case RENAME_VIA_DIR:
                        clean_merge = 1;
-                       if (handle_rename_via_dir(opt, ci->pair1, ci->branch1))
+                       if (handle_rename_via_dir(opt, ci->ren1->pair, ci->branch1))
                                clean_merge = -1;
                        break;
                case RENAME_ADD:
@@ -3278,7 +3258,7 @@ static int process_entry(struct merge_options *opt,
                        break;
                case RENAME_DELETE:
                        clean_merge = 0;
-                       if (handle_rename_delete(opt, ci->pair1,
+                       if (handle_rename_delete(opt, ci->ren1->pair,
                                                 ci->branch1, ci->branch2))
                                clean_merge = -1;
                        break;