git-svn: allow SVN:: lib users to track the root of the repository (again)
[gitweb.git] / merge-recursive.c
index 611cd95cf597b0ccf06cf9b4318eb34a86a4c05a..cd2cc77bf47025a9dfc88f594961521c3ec8f22c 100644 (file)
@@ -98,7 +98,7 @@ static void output_commit_title(struct commit *commit)
        if (commit->util)
                printf("virtual %s\n", (char *)commit->util);
        else {
-               printf("%s ", sha1_to_hex(commit->object.sha1));
+               printf("%s ", find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV));
                if (parse_commit(commit) != 0)
                        printf("(bad commit)\n");
                else {
@@ -427,8 +427,9 @@ static struct path_list *get_renames(struct tree *tree,
        return renames;
 }
 
-int update_stages(const char *path, struct diff_filespec *o,
-               struct diff_filespec *a, struct diff_filespec *b, int clear)
+static int update_stages(const char *path, struct diff_filespec *o,
+                        struct diff_filespec *a, struct diff_filespec *b,
+                        int clear)
 {
        int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
        if (clear)
@@ -468,10 +469,10 @@ static int remove_path(const char *name)
        return ret;
 }
 
-int remove_file(int clean, const char *path)
+static int remove_file(int clean, const char *path, int no_wd)
 {
        int update_cache = index_only || clean;
-       int update_working_directory = !index_only;
+       int update_working_directory = !index_only && !no_wd;
 
        if (update_cache) {
                if (!cache_dirty)
@@ -480,8 +481,7 @@ int remove_file(int clean, const char *path)
                if (remove_file_from_cache(path))
                        return -1;
        }
-       if (update_working_directory)
-       {
+       if (update_working_directory) {
                unlink(path);
                if (errno != ENOENT || errno != EISDIR)
                        return -1;
@@ -537,11 +537,11 @@ static void flush_buffer(int fd, const char *buf, unsigned long size)
        }
 }
 
-void update_file_flags(const unsigned char *sha,
-                      unsigned mode,
-                      const char *path,
-                      int update_cache,
-                      int update_wd)
+static void update_file_flags(const unsigned char *sha,
+                             unsigned mode,
+                             const char *path,
+                             int update_cache,
+                             int update_wd)
 {
        if (index_only)
                update_wd = 0;
@@ -586,10 +586,10 @@ void update_file_flags(const unsigned char *sha,
                add_cacheinfo(mode, sha, path, 0, update_wd, ADD_CACHE_OK_TO_ADD);
 }
 
-void update_file(int clean,
-               const unsigned char *sha,
-               unsigned mode,
-               const char *path)
+static void update_file(int clean,
+                       const unsigned char *sha,
+                       unsigned mode,
+                       const char *path)
 {
        update_file_flags(sha, mode, path, index_only || clean, !index_only);
 }
@@ -724,13 +724,13 @@ static void conflict_rename_rename(struct rename *ren1,
                dst_name1 = del[delp++] = unique_path(ren1_dst, branch1);
                output("%s is a directory in %s adding as %s instead",
                       ren1_dst, branch2, dst_name1);
-               remove_file(0, ren1_dst);
+               remove_file(0, ren1_dst, 0);
        }
        if (path_list_has_path(&current_directory_set, ren2_dst)) {
                dst_name2 = del[delp++] = unique_path(ren2_dst, branch2);
                output("%s is a directory in %s adding as %s instead",
                       ren2_dst, branch1, dst_name2);
-               remove_file(0, ren2_dst);
+               remove_file(0, ren2_dst, 0);
        }
        update_stages(dst_name1, NULL, ren1->pair->two, NULL, 1);
        update_stages(dst_name2, NULL, NULL, ren2->pair->two, 1);
@@ -743,7 +743,7 @@ static void conflict_rename_dir(struct rename *ren1,
 {
        char *new_path = unique_path(ren1->pair->two->path, branch1);
        output("Renaming %s to %s instead", ren1->pair->one->path, new_path);
-       remove_file(0, ren1->pair->two->path);
+       remove_file(0, ren1->pair->two->path, 0);
        update_file(0, ren1->pair->two->sha1, ren1->pair->two->mode, new_path);
        free(new_path);
 }
@@ -758,7 +758,7 @@ static void conflict_rename_rename_2(struct rename *ren1,
        output("Renaming %s to %s and %s to %s instead",
               ren1->pair->one->path, new_path1,
               ren2->pair->one->path, new_path2);
-       remove_file(0, ren1->pair->two->path);
+       remove_file(0, ren1->pair->two->path, 0);
        update_file(0, ren1->pair->two->sha1, ren1->pair->two->mode, new_path1);
        update_file(0, ren2->pair->two->sha1, ren2->pair->two->mode, new_path2);
        free(new_path2);
@@ -856,7 +856,7 @@ static int process_renames(struct path_list *a_renames,
                                conflict_rename_rename(ren1, branch1, ren2, branch2);
                        } else {
                                struct merge_file_info mfi;
-                               remove_file(1, ren1_src);
+                               remove_file(1, ren1_src, 1);
                                mfi = merge_file(ren1->pair->one,
                                                 ren1->pair->two,
                                                 ren2->pair->two,
@@ -889,7 +889,7 @@ static int process_renames(struct path_list *a_renames,
                        struct diff_filespec src_other, dst_other;
                        int try_merge, stage = a_renames == renames1 ? 3: 2;
 
-                       remove_file(1, ren1_src);
+                       remove_file(1, ren1_src, 1);
 
                        hashcpy(src_other.sha1, ren1->src_entry->stages[stage].sha);
                        src_other.mode = ren1->src_entry->stages[stage].mode;
@@ -1007,7 +1007,8 @@ static int process_entry(const char *path, struct stage_data *entry,
                         * unchanged in the other */
                        if (a_sha)
                                output("Removing %s", path);
-                       remove_file(1, path);
+                       /* do not touch working file if it did not exist */
+                       remove_file(1, path, !a_sha);
                } else {
                        /* Deleted in one and changed in the other */
                        clean_merge = 0;
@@ -1054,7 +1055,7 @@ static int process_entry(const char *path, struct stage_data *entry,
                        output("CONFLICT (%s): There is a directory with name %s in %s. "
                               "Adding %s as %s",
                               conf, path, other_branch, path, new_path);
-                       remove_file(0, path);
+                       remove_file(0, path, 0);
                        update_file(0, sha, mode, new_path);
                } else {
                        output("Adding %s", path);
@@ -1082,7 +1083,7 @@ static int process_entry(const char *path, struct stage_data *entry,
                        output("CONFLICT (add/add): File %s added non-identically "
                               "in both branches. Adding as %s and %s instead.",
                               path, new_path1, new_path2);
-                       remove_file(0, path);
+                       remove_file(0, path, 0);
                        update_file(0, a_sha, a_mode, new_path1);
                        update_file(0, b_sha, b_mode, new_path2);
                }
@@ -1204,14 +1205,13 @@ static struct commit_list *reverse_commit_list(struct commit_list *list)
  * Merge the commits h1 and h2, return the resulting virtual
  * commit object and a flag indicating the cleaness of the merge.
  */
-static
-int merge(struct commit *h1,
-                         struct commit *h2,
-                         const char *branch1,
-                         const char *branch2,
-                         int call_depth /* =0 */,
-                         struct commit *ancestor /* =None */,
-                         struct commit **result)
+static int merge(struct commit *h1,
+                struct commit *h2,
+                const char *branch1,
+                const char *branch2,
+                int call_depth /* =0 */,
+                struct commit *ancestor /* =None */,
+                struct commit **result)
 {
        struct commit_list *ca = NULL, *iter;
        struct commit *merged_common_ancestors;
@@ -1235,13 +1235,10 @@ int merge(struct commit *h1,
        if (merged_common_ancestors == NULL) {
                /* if there is no common ancestor, make an empty tree */
                struct tree *tree = xcalloc(1, sizeof(struct tree));
-               unsigned char hdr[40];
-               int hdrlen;
 
                tree->object.parsed = 1;
                tree->object.type = OBJ_TREE;
-               write_sha1_file_prepare(NULL, 0, tree_type, tree->object.sha1,
-                                       hdr, &hdrlen);
+               hash_sha1_file(NULL, 0, tree_type, tree->object.sha1);
                merged_common_ancestors = make_virtual_commit(tree, "ancestor");
        }
 
@@ -1311,6 +1308,7 @@ int main(int argc, char *argv[])
        const char *branch1, *branch2;
        struct commit *result, *h1, *h2;
 
+       git_config(git_default_config); /* core.filemode */
        original_index_file = getenv("GIT_INDEX_FILE");
 
        if (!original_index_file)