diff options
Diffstat (limited to 'merge-ort.c')
| -rw-r--r-- | merge-ort.c | 632 |
1 files changed, 458 insertions, 174 deletions
diff --git a/merge-ort.c b/merge-ort.c index 07f54e409f..7d105be275 100644 --- a/merge-ort.c +++ b/merge-ort.c @@ -349,13 +349,15 @@ struct merge_options_internal { struct mem_pool pool; /* - * output: special messages and conflict notices for various paths + * conflicts: logical conflicts and messages stored by _primary_ path * * This is a map of pathnames (a subset of the keys in "paths" above) - * to strbufs. It gathers various warning/conflict/notice messages - * for later processing. + * to struct string_list, with each item's `util` containing a + * `struct logical_conflict_info`. Note, though, that for each path, + * it only stores the logical conflicts for which that path is the + * primary path; the path might be part of additional conflicts. */ - struct strmap output; + struct strmap conflicts; /* * renames: various data relating to rename detection @@ -481,6 +483,100 @@ struct conflict_info { unsigned match_mask:3; }; +enum conflict_and_info_types { + /* "Simple" conflicts and informational messages */ + INFO_AUTO_MERGING = 0, + CONFLICT_CONTENTS, /* text file that failed to merge */ + CONFLICT_BINARY, + CONFLICT_FILE_DIRECTORY, + CONFLICT_DISTINCT_MODES, + CONFLICT_MODIFY_DELETE, + CONFLICT_PRESENT_DESPITE_SKIPPED, + + /* Regular rename */ + CONFLICT_RENAME_RENAME, /* same file renamed differently */ + CONFLICT_RENAME_COLLIDES, /* rename/add or two files renamed to 1 */ + CONFLICT_RENAME_DELETE, + + /* Basic directory rename */ + CONFLICT_DIR_RENAME_SUGGESTED, + INFO_DIR_RENAME_APPLIED, + + /* Special directory rename cases */ + INFO_DIR_RENAME_SKIPPED_DUE_TO_RERENAME, + CONFLICT_DIR_RENAME_FILE_IN_WAY, + CONFLICT_DIR_RENAME_COLLISION, + CONFLICT_DIR_RENAME_SPLIT, + + /* Basic submodule */ + INFO_SUBMODULE_FAST_FORWARDING, + CONFLICT_SUBMODULE_FAILED_TO_MERGE, + + /* Special submodule cases broken out from FAILED_TO_MERGE */ + CONFLICT_SUBMODULE_FAILED_TO_MERGE_BUT_POSSIBLE_RESOLUTION, + CONFLICT_SUBMODULE_NOT_INITIALIZED, + CONFLICT_SUBMODULE_HISTORY_NOT_AVAILABLE, + CONFLICT_SUBMODULE_MAY_HAVE_REWINDS, + + /* Keep this entry _last_ in the list */ + NB_CONFLICT_TYPES, +}; + +/* + * Short description of conflict type, relied upon by external tools. + * + * We can add more entries, but DO NOT change any of these strings. Also, + * Order MUST match conflict_info_and_types. + */ +static const char *type_short_descriptions[] = { + /*** "Simple" conflicts and informational messages ***/ + [INFO_AUTO_MERGING] = "Auto-merging", + [CONFLICT_CONTENTS] = "CONFLICT (contents)", + [CONFLICT_BINARY] = "CONFLICT (binary)", + [CONFLICT_FILE_DIRECTORY] = "CONFLICT (file/directory)", + [CONFLICT_DISTINCT_MODES] = "CONFLICT (distinct modes)", + [CONFLICT_MODIFY_DELETE] = "CONFLICT (modify/delete)", + [CONFLICT_PRESENT_DESPITE_SKIPPED] = + "CONFLICT (upgrade your version of git)", + + /*** Regular rename ***/ + [CONFLICT_RENAME_RENAME] = "CONFLICT (rename/rename)", + [CONFLICT_RENAME_COLLIDES] = "CONFLICT (rename involved in collision)", + [CONFLICT_RENAME_DELETE] = "CONFLICT (rename/delete)", + + /*** Basic directory rename ***/ + [CONFLICT_DIR_RENAME_SUGGESTED] = + "CONFLICT (directory rename suggested)", + [INFO_DIR_RENAME_APPLIED] = "Path updated due to directory rename", + + /*** Special directory rename cases ***/ + [INFO_DIR_RENAME_SKIPPED_DUE_TO_RERENAME] = + "Directory rename skipped since directory was renamed on both sides", + [CONFLICT_DIR_RENAME_FILE_IN_WAY] = + "CONFLICT (file in way of directory rename)", + [CONFLICT_DIR_RENAME_COLLISION] = "CONFLICT(directory rename collision)", + [CONFLICT_DIR_RENAME_SPLIT] = "CONFLICT(directory rename unclear split)", + + /*** Basic submodule ***/ + [INFO_SUBMODULE_FAST_FORWARDING] = "Fast forwarding submodule", + [CONFLICT_SUBMODULE_FAILED_TO_MERGE] = "CONFLICT (submodule)", + + /*** Special submodule cases broken out from FAILED_TO_MERGE ***/ + [CONFLICT_SUBMODULE_FAILED_TO_MERGE_BUT_POSSIBLE_RESOLUTION] = + "CONFLICT (submodule with possible resolution)", + [CONFLICT_SUBMODULE_NOT_INITIALIZED] = + "CONFLICT (submodule not initialized)", + [CONFLICT_SUBMODULE_HISTORY_NOT_AVAILABLE] = + "CONFLICT (submodule history not available)", + [CONFLICT_SUBMODULE_MAY_HAVE_REWINDS] = + "CONFLICT (submodule may have rewinds)", +}; + +struct logical_conflict_info { + enum conflict_and_info_types type; + struct strvec paths; +}; + /*** Function Grouping: various utility functions ***/ /* @@ -567,20 +663,25 @@ static void clear_or_reinit_internal_opts(struct merge_options_internal *opti, struct strmap_entry *e; /* Release and free each strbuf found in output */ - strmap_for_each_entry(&opti->output, &iter, e) { - struct strbuf *sb = e->value; - strbuf_release(sb); + strmap_for_each_entry(&opti->conflicts, &iter, e) { + struct string_list *list = e->value; + for (int i = 0; i < list->nr; i++) { + struct logical_conflict_info *info = + list->items[i].util; + strvec_clear(&info->paths); + } /* - * While strictly speaking we don't need to free(sb) - * here because we could pass free_values=1 when - * calling strmap_clear() on opti->output, that would - * require strmap_clear to do another - * strmap_for_each_entry() loop, so we just free it - * while we're iterating anyway. + * While strictly speaking we don't need to + * free(conflicts) here because we could pass + * free_values=1 when calling strmap_clear() on + * opti->conflicts, that would require strmap_clear + * to do another strmap_for_each_entry() loop, so we + * just free it while we're iterating anyway. */ - free(sb); + string_list_clear(list, 1); + free(list); } - strmap_clear(&opti->output, 0); + strmap_clear(&opti->conflicts, 0); } mem_pool_discard(&opti->pool, 0); @@ -627,25 +728,94 @@ static void format_commit(struct strbuf *sb, strbuf_addch(sb, '\n'); } -__attribute__((format (printf, 4, 5))) +__attribute__((format (printf, 8, 9))) static void path_msg(struct merge_options *opt, - const char *path, + enum conflict_and_info_types type, int omittable_hint, /* skippable under --remerge-diff */ + const char *primary_path, + const char *other_path_1, /* may be NULL */ + const char *other_path_2, /* may be NULL */ + struct string_list *other_paths, /* may be NULL */ const char *fmt, ...) { va_list ap; - struct strbuf *sb = strmap_get(&opt->priv->output, path); - if (!sb) { - sb = xmalloc(sizeof(*sb)); - strbuf_init(sb, 0); - strmap_put(&opt->priv->output, path, sb); + struct string_list *path_conflicts; + struct logical_conflict_info *info; + struct strbuf buf = STRBUF_INIT; + struct strbuf *dest; + struct strbuf tmp = STRBUF_INIT; + + /* Sanity checks */ + assert(omittable_hint == + !starts_with(type_short_descriptions[type], "CONFLICT") || + type == CONFLICT_DIR_RENAME_SUGGESTED || + type == CONFLICT_PRESENT_DESPITE_SKIPPED); + if (opt->record_conflict_msgs_as_headers && omittable_hint) + return; /* Do not record mere hints in headers */ + if (opt->priv->call_depth && opt->verbosity < 5) + return; /* Ignore messages from inner merges */ + + /* Ensure path_conflicts (ptr to array of logical_conflict) allocated */ + path_conflicts = strmap_get(&opt->priv->conflicts, primary_path); + if (!path_conflicts) { + path_conflicts = xmalloc(sizeof(*path_conflicts)); + string_list_init_dup(path_conflicts); + strmap_put(&opt->priv->conflicts, primary_path, path_conflicts); } + /* Add a logical_conflict at the end to store info from this call */ + info = xcalloc(1, sizeof(*info)); + info->type = type; + strvec_init(&info->paths); + + /* Handle the list of paths */ + strvec_push(&info->paths, primary_path); + if (other_path_1) + strvec_push(&info->paths, other_path_1); + if (other_path_2) + strvec_push(&info->paths, other_path_2); + if (other_paths) + for (int i = 0; i < other_paths->nr; i++) + strvec_push(&info->paths, other_paths->items[i].string); + + /* Handle message and its format, in normal case */ + dest = (opt->record_conflict_msgs_as_headers ? &tmp : &buf); + va_start(ap, fmt); - strbuf_vaddf(sb, fmt, ap); + if (opt->priv->call_depth) { + strbuf_addchars(dest, ' ', 2); + strbuf_addstr(dest, "From inner merge:"); + strbuf_addchars(dest, ' ', opt->priv->call_depth * 2); + } + strbuf_vaddf(dest, fmt, ap); va_end(ap); - strbuf_addch(sb, '\n'); + /* Handle specialized formatting of message under --remerge-diff */ + if (opt->record_conflict_msgs_as_headers) { + int i_sb = 0, i_tmp = 0; + + /* Start with the specified prefix */ + if (opt->msg_header_prefix) + strbuf_addf(&buf, "%s ", opt->msg_header_prefix); + + /* Copy tmp to sb, adding spaces after newlines */ + strbuf_grow(&buf, buf.len + 2*tmp.len); /* more than sufficient */ + for (; i_tmp < tmp.len; i_tmp++, i_sb++) { + /* Copy next character from tmp to sb */ + buf.buf[buf.len + i_sb] = tmp.buf[i_tmp]; + + /* If we copied a newline, add a space */ + if (tmp.buf[i_tmp] == '\n') + buf.buf[++i_sb] = ' '; + } + /* Update length and ensure it's NUL-terminated */ + buf.len += i_sb; + buf.buf[buf.len] = '\0'; + + strbuf_release(&tmp); + } + string_list_append_nodup(path_conflicts, strbuf_detach(&buf, NULL)) + ->util = info; } static struct diff_filespec *pool_alloc_filespec(struct mem_pool *pool, @@ -688,13 +858,15 @@ static void add_flattened_path(struct strbuf *out, const char *s) out->buf[i] = '_'; } -static char *unique_path(struct strmap *existing_paths, +static char *unique_path(struct merge_options *opt, const char *path, const char *branch) { + char *ret = NULL; struct strbuf newpath = STRBUF_INIT; int suffix = 0; size_t base_len; + struct strmap *existing_paths = &opt->priv->paths; strbuf_addf(&newpath, "%s~", path); add_flattened_path(&newpath, branch); @@ -705,7 +877,11 @@ static char *unique_path(struct strmap *existing_paths, strbuf_addf(&newpath, "_%d", suffix++); } - return strbuf_detach(&newpath, NULL); + /* Track the new path in our memory pool */ + ret = mem_pool_alloc(&opt->priv->pool, newpath.len + 1); + memcpy(ret, newpath.buf, newpath.len + 1); + strbuf_release(&newpath); + return ret; } /*** Function Grouping: functions related to collect_merge_info() ***/ @@ -1548,6 +1724,7 @@ static int find_first_merges(struct repository *repo, } object_array_clear(&merges); + release_revisions(&revs); return result->nr; } @@ -1580,16 +1757,18 @@ static int merge_submodule(struct merge_options *opt, return 0; if (repo_submodule_init(&subrepo, opt->repo, path, null_oid())) { - path_msg(opt, path, 0, - _("Failed to merge submodule %s (not checked out)"), - path); + path_msg(opt, CONFLICT_SUBMODULE_NOT_INITIALIZED, 0, + path, NULL, NULL, NULL, + _("Failed to merge submodule %s (not checked out)"), + path); return 0; } if (!(commit_o = lookup_commit_reference(&subrepo, o)) || !(commit_a = lookup_commit_reference(&subrepo, a)) || !(commit_b = lookup_commit_reference(&subrepo, b))) { - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_SUBMODULE_HISTORY_NOT_AVAILABLE, 0, + path, NULL, NULL, NULL, _("Failed to merge submodule %s (commits not present)"), path); goto cleanup; @@ -1598,7 +1777,8 @@ static int merge_submodule(struct merge_options *opt, /* check whether both changes are forward */ if (!repo_in_merge_bases(&subrepo, commit_o, commit_a) || !repo_in_merge_bases(&subrepo, commit_o, commit_b)) { - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_SUBMODULE_MAY_HAVE_REWINDS, 0, + path, NULL, NULL, NULL, _("Failed to merge submodule %s " "(commits don't follow merge-base)"), path); @@ -1608,7 +1788,8 @@ static int merge_submodule(struct merge_options *opt, /* Case #1: a is contained in b or vice versa */ if (repo_in_merge_bases(&subrepo, commit_a, commit_b)) { oidcpy(result, b); - path_msg(opt, path, 1, + path_msg(opt, INFO_SUBMODULE_FAST_FORWARDING, 1, + path, NULL, NULL, NULL, _("Note: Fast-forwarding submodule %s to %s"), path, oid_to_hex(b)); ret = 1; @@ -1616,7 +1797,8 @@ static int merge_submodule(struct merge_options *opt, } if (repo_in_merge_bases(&subrepo, commit_b, commit_a)) { oidcpy(result, a); - path_msg(opt, path, 1, + path_msg(opt, INFO_SUBMODULE_FAST_FORWARDING, 1, + path, NULL, NULL, NULL, _("Note: Fast-forwarding submodule %s to %s"), path, oid_to_hex(a)); ret = 1; @@ -1639,30 +1821,27 @@ static int merge_submodule(struct merge_options *opt, &merges); switch (parent_count) { case 0: - path_msg(opt, path, 0, _("Failed to merge submodule %s"), path); + path_msg(opt, CONFLICT_SUBMODULE_FAILED_TO_MERGE, 0, + path, NULL, NULL, NULL, + _("Failed to merge submodule %s"), path); break; case 1: format_commit(&sb, 4, &subrepo, (struct commit *)merges.objects[0].item); - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_SUBMODULE_FAILED_TO_MERGE_BUT_POSSIBLE_RESOLUTION, 0, + path, NULL, NULL, NULL, _("Failed to merge submodule %s, but a possible merge " - "resolution exists:\n%s\n"), + "resolution exists: %s"), path, sb.buf); - path_msg(opt, path, 1, - _("If this is correct simply add it to the index " - "for example\n" - "by using:\n\n" - " git update-index --cacheinfo 160000 %s \"%s\"\n\n" - "which will accept this suggestion.\n"), - oid_to_hex(&merges.objects[0].item->oid), path); strbuf_release(&sb); break; default: for (i = 0; i < merges.nr; i++) format_commit(&sb, 4, &subrepo, (struct commit *)merges.objects[i].item); - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_SUBMODULE_FAILED_TO_MERGE_BUT_POSSIBLE_RESOLUTION, 0, + path, NULL, NULL, NULL, _("Failed to merge submodule %s, but multiple " "possible merges exist:\n%s"), path, sb.buf); strbuf_release(&sb); @@ -1743,7 +1922,7 @@ static int merge_3way(struct merge_options *opt, mmfile_t orig, src1, src2; struct ll_merge_options ll_opts = {0}; char *base, *name1, *name2; - int merge_status; + enum ll_merge_result merge_status; if (!opt->priv->attr_index.initialized) initialize_attr_index(opt); @@ -1787,6 +1966,11 @@ static int merge_3way(struct merge_options *opt, merge_status = ll_merge(result_buf, path, &orig, base, &src1, name1, &src2, name2, &opt->priv->attr_index, &ll_opts); + if (merge_status == LL_MERGE_BINARY_CONFLICT) + path_msg(opt, CONFLICT_BINARY, 0, + path, NULL, NULL, NULL, + "warning: Cannot merge binary files: %s (%s vs. %s)", + path, name1, name2); free(base); free(name1); @@ -1888,7 +2072,7 @@ static int handle_content_merge(struct merge_options *opt, if (!ret && write_object_file(result_buf.ptr, result_buf.size, - blob_type, &result->oid)) + OBJ_BLOB, &result->oid)) ret = err(opt, _("Unable to add %s to database"), path); @@ -1896,7 +2080,8 @@ static int handle_content_merge(struct merge_options *opt, if (ret) return -1; clean &= (merge_status == 0); - path_msg(opt, path, 1, _("Auto-merging %s"), path); + path_msg(opt, INFO_AUTO_MERGING, 1, path, NULL, NULL, NULL, + _("Auto-merging %s"), path); } else if (S_ISGITLINK(a->mode)) { int two_way = ((S_IFMT & o->mode) != (S_IFMT & a->mode)); clean = merge_submodule(opt, pathnames[0], @@ -2018,7 +2203,7 @@ static char *handle_path_level_conflicts(struct merge_options *opt, * to ensure that's the case. */ c_info = strmap_get(collisions, new_path); - if (c_info == NULL) + if (!c_info) BUG("c_info is NULL"); /* @@ -2034,21 +2219,24 @@ static char *handle_path_level_conflicts(struct merge_options *opt, c_info->reported_already = 1; strbuf_add_separated_string_list(&collision_paths, ", ", &c_info->source_files); - path_msg(opt, new_path, 0, - _("CONFLICT (implicit dir rename): Existing file/dir " - "at %s in the way of implicit directory rename(s) " - "putting the following path(s) there: %s."), - new_path, collision_paths.buf); + path_msg(opt, CONFLICT_DIR_RENAME_FILE_IN_WAY, 0, + new_path, NULL, NULL, &c_info->source_files, + _("CONFLICT (implicit dir rename): Existing " + "file/dir at %s in the way of implicit " + "directory rename(s) putting the following " + "path(s) there: %s."), + new_path, collision_paths.buf); clean = 0; } else if (c_info->source_files.nr > 1) { c_info->reported_already = 1; strbuf_add_separated_string_list(&collision_paths, ", ", &c_info->source_files); - path_msg(opt, new_path, 0, - _("CONFLICT (implicit dir rename): Cannot map more " - "than one path to %s; implicit directory renames " - "tried to put these paths there: %s"), - new_path, collision_paths.buf); + path_msg(opt, CONFLICT_DIR_RENAME_COLLISION, 0, + new_path, NULL, NULL, &c_info->source_files, + _("CONFLICT (implicit dir rename): Cannot map " + "more than one path to %s; implicit directory " + "renames tried to put these paths there: %s"), + new_path, collision_paths.buf); clean = 0; } @@ -2102,13 +2290,14 @@ static void get_provisional_directory_renames(struct merge_options *opt, continue; if (bad_max == max) { - path_msg(opt, source_dir, 0, - _("CONFLICT (directory rename split): " - "Unclear where to rename %s to; it was " - "renamed to multiple other directories, with " - "no destination getting a majority of the " - "files."), - source_dir); + path_msg(opt, CONFLICT_DIR_RENAME_SPLIT, 0, + source_dir, NULL, NULL, NULL, + _("CONFLICT (directory rename split): " + "Unclear where to rename %s to; it was " + "renamed to multiple other directories, " + "with no destination getting a majority of " + "the files."), + source_dir); *clean = 0; } else { strmap_put(&renames->dir_renames[side], @@ -2209,6 +2398,27 @@ static void compute_collisions(struct strmap *collisions, } } +static void free_collisions(struct strmap *collisions) +{ + struct hashmap_iter iter; + struct strmap_entry *entry; + + /* Free each value in the collisions map */ + strmap_for_each_entry(collisions, &iter, entry) { + struct collision_info *info = entry->value; + string_list_clear(&info->source_files, 0); + } + /* + * In compute_collisions(), we set collisions.strdup_strings to 0 + * so that we wouldn't have to make another copy of the new_path + * allocated by apply_dir_rename(). But now that we've used them + * and have no other references to these strings, it is time to + * deallocate them. + */ + free_strmap_strings(collisions); + strmap_clear(collisions, 1); +} + static char *check_for_directory_rename(struct merge_options *opt, const char *path, unsigned side_index, @@ -2217,18 +2427,23 @@ static char *check_for_directory_rename(struct merge_options *opt, struct strmap *collisions, int *clean_merge) { - char *new_path = NULL; + char *new_path; struct strmap_entry *rename_info; - struct strmap_entry *otherinfo = NULL; + struct strmap_entry *otherinfo; const char *new_dir; + int other_side = 3 - side_index; + /* + * Cases where we don't have or don't want a directory rename for + * this path. + */ if (strmap_empty(dir_renames)) - return new_path; + return NULL; + if (strmap_get(&collisions[other_side], path)) + return NULL; rename_info = check_dir_renamed(path, dir_renames); if (!rename_info) - return new_path; - /* old_dir = rename_info->key; */ - new_dir = rename_info->value; + return NULL; /* * This next part is a little weird. We do not want to do an @@ -2254,9 +2469,11 @@ static char *check_for_directory_rename(struct merge_options *opt, * As it turns out, this also prevents N-way transient rename * confusion; See testcases 9c and 9d of t6043. */ + new_dir = rename_info->value; /* old_dir = rename_info->key; */ otherinfo = strmap_get_entry(dir_rename_exclusions, new_dir); if (otherinfo) { - path_msg(opt, rename_info->key, 1, + path_msg(opt, INFO_DIR_RENAME_SKIPPED_DUE_TO_RERENAME, 1, + rename_info->key, path, new_dir, NULL, _("WARNING: Avoiding applying %s -> %s rename " "to %s, because %s itself was renamed."), rename_info->key, new_dir, path, new_dir); @@ -2264,7 +2481,8 @@ static char *check_for_directory_rename(struct merge_options *opt, } new_path = handle_path_level_conflicts(opt, path, side_index, - rename_info, collisions); + rename_info, + &collisions[side_index]); *clean_merge &= (new_path != NULL); return new_path; @@ -2396,14 +2614,16 @@ static void apply_directory_rename_modifications(struct merge_options *opt, if (opt->detect_directory_renames == MERGE_DIRECTORY_RENAMES_TRUE) { /* Notify user of updated path */ if (pair->status == 'A') - path_msg(opt, new_path, 1, + path_msg(opt, INFO_DIR_RENAME_APPLIED, 1, + new_path, old_path, NULL, NULL, _("Path updated: %s added in %s inside a " "directory that was renamed in %s; moving " "it to %s."), old_path, branch_with_new_path, branch_with_dir_rename, new_path); else - path_msg(opt, new_path, 1, + path_msg(opt, INFO_DIR_RENAME_APPLIED, 1, + new_path, old_path, NULL, NULL, _("Path updated: %s renamed to %s in %s, " "inside a directory that was renamed in %s; " "moving it to %s."), @@ -2416,7 +2636,8 @@ static void apply_directory_rename_modifications(struct merge_options *opt, */ ci->path_conflict = 1; if (pair->status == 'A') - path_msg(opt, new_path, 0, + path_msg(opt, CONFLICT_DIR_RENAME_SUGGESTED, 1, + new_path, old_path, NULL, NULL, _("CONFLICT (file location): %s added in %s " "inside a directory that was renamed in %s, " "suggesting it should perhaps be moved to " @@ -2424,7 +2645,8 @@ static void apply_directory_rename_modifications(struct merge_options *opt, old_path, branch_with_new_path, branch_with_dir_rename, new_path); else - path_msg(opt, new_path, 0, + path_msg(opt, CONFLICT_DIR_RENAME_SUGGESTED, 1, + new_path, old_path, NULL, NULL, _("CONFLICT (file location): %s renamed to %s " "in %s, inside a directory that was renamed " "in %s, suggesting it should perhaps be " @@ -2580,7 +2802,8 @@ static int process_renames(struct merge_options *opt, * and remove the setting of base->path_conflict to 1. */ base->path_conflict = 1; - path_msg(opt, oldpath, 0, + path_msg(opt, CONFLICT_RENAME_RENAME, 0, + pathnames[0], pathnames[1], pathnames[2], NULL, _("CONFLICT (rename/rename): %s renamed to " "%s in %s and to %s in %s."), pathnames[0], @@ -2675,7 +2898,8 @@ static int process_renames(struct merge_options *opt, memcpy(&newinfo->stages[target_index], &merged, sizeof(merged)); if (!clean) { - path_msg(opt, newpath, 0, + path_msg(opt, CONFLICT_RENAME_COLLIDES, 0, + newpath, oldpath, NULL, NULL, _("CONFLICT (rename involved in " "collision): rename of %s -> %s has " "content conflicts AND collides " @@ -2694,7 +2918,8 @@ static int process_renames(struct merge_options *opt, */ newinfo->path_conflict = 1; - path_msg(opt, newpath, 0, + path_msg(opt, CONFLICT_RENAME_DELETE, 0, + newpath, oldpath, NULL, NULL, _("CONFLICT (rename/delete): %s renamed " "to %s in %s, but deleted in %s."), oldpath, newpath, rename_branch, delete_branch); @@ -2718,7 +2943,8 @@ static int process_renames(struct merge_options *opt, } else if (source_deleted) { /* rename/delete */ newinfo->path_conflict = 1; - path_msg(opt, newpath, 0, + path_msg(opt, CONFLICT_RENAME_DELETE, 0, + newpath, oldpath, NULL, NULL, _("CONFLICT (rename/delete): %s renamed" " to %s in %s, but deleted in %s."), oldpath, newpath, @@ -2973,18 +3199,15 @@ static int detect_regular_renames(struct merge_options *opt, static int collect_renames(struct merge_options *opt, struct diff_queue_struct *result, unsigned side_index, + struct strmap *collisions, struct strmap *dir_renames_for_side, struct strmap *rename_exclusions) { int i, clean = 1; - struct strmap collisions; struct diff_queue_struct *side_pairs; - struct hashmap_iter iter; - struct strmap_entry *entry; struct rename_info *renames = &opt->priv->renames; side_pairs = &renames->pairs[side_index]; - compute_collisions(&collisions, dir_renames_for_side, side_pairs); for (i = 0; i < side_pairs->nr; ++i) { struct diff_filepair *p = side_pairs->queue[i]; @@ -3000,7 +3223,7 @@ static int collect_renames(struct merge_options *opt, side_index, dir_renames_for_side, rename_exclusions, - &collisions, + collisions, &clean); possibly_cache_new_pair(renames, p, side_index, new_path); @@ -3026,20 +3249,6 @@ static int collect_renames(struct merge_options *opt, result->queue[result->nr++] = p; } - /* Free each value in the collisions map */ - strmap_for_each_entry(&collisions, &iter, entry) { - struct collision_info *info = entry->value; - string_list_clear(&info->source_files, 0); - } - /* - * In compute_collisions(), we set collisions.strdup_strings to 0 - * so that we wouldn't have to make another copy of the new_path - * allocated by apply_dir_rename(). But now that we've used them - * and have no other references to these strings, it is time to - * deallocate them. - */ - free_strmap_strings(&collisions); - strmap_clear(&collisions, 1); return clean; } @@ -3048,18 +3257,22 @@ static int detect_and_process_renames(struct merge_options *opt, struct tree *side1, struct tree *side2) { - struct diff_queue_struct combined; + struct diff_queue_struct combined = { 0 }; struct rename_info *renames = &opt->priv->renames; - int need_dir_renames, s, clean = 1; + struct strmap collisions[3]; + int need_dir_renames, s, i, clean = 1; unsigned detection_run = 0; - memset(&combined, 0, sizeof(combined)); if (!possible_renames(renames)) goto cleanup; trace2_region_enter("merge", "regular renames", opt->repo); detection_run |= detect_regular_renames(opt, MERGE_SIDE1); detection_run |= detect_regular_renames(opt, MERGE_SIDE2); + if (renames->needed_limit) { + renames->cached_pairs_valid_side = 0; + renames->redo_after_renames = 0; + } if (renames->redo_after_renames && detection_run) { int i, side; struct diff_filepair *p; @@ -3096,12 +3309,22 @@ static int detect_and_process_renames(struct merge_options *opt, ALLOC_GROW(combined.queue, renames->pairs[1].nr + renames->pairs[2].nr, combined.alloc); + for (i = MERGE_SIDE1; i <= MERGE_SIDE2; i++) { + int other_side = 3 - i; + compute_collisions(&collisions[i], + &renames->dir_renames[other_side], + &renames->pairs[i]); + } clean &= collect_renames(opt, &combined, MERGE_SIDE1, + collisions, &renames->dir_renames[2], &renames->dir_renames[1]); clean &= collect_renames(opt, &combined, MERGE_SIDE2, + collisions, &renames->dir_renames[1], &renames->dir_renames[2]); + for (i = MERGE_SIDE1; i <= MERGE_SIDE2; i++) + free_collisions(&collisions[i]); STABLE_QSORT(combined.queue, combined.nr, compare_pairs); trace2_region_leave("merge", "directory renames", opt->repo); @@ -3133,13 +3356,9 @@ simple_cleanup: free(renames->pairs[s].queue); DIFF_QUEUE_CLEAR(&renames->pairs[s]); } - if (combined.nr) { - int i; - for (i = 0; i < combined.nr; i++) - pool_diff_free_filepair(&opt->priv->pool, - combined.queue[i]); - free(combined.queue); - } + for (i = 0; i < combined.nr; i++) + pool_diff_free_filepair(&opt->priv->pool, combined.queue[i]); + free(combined.queue); return clean; } @@ -3343,7 +3562,7 @@ static void write_tree(struct object_id *result_oid, } /* Write this object file out, and record in result_oid */ - write_object_file(buf.buf, buf.len, tree_type, result_oid); + write_object_file(buf.buf, buf.len, OBJ_TREE, result_oid); strbuf_release(&buf); } @@ -3637,10 +3856,11 @@ static void process_entry(struct merge_options *opt, */ df_file_index = (ci->dirmask & (1 << 1)) ? 2 : 1; branch = (df_file_index == 1) ? opt->branch1 : opt->branch2; - path = unique_path(&opt->priv->paths, path, branch); + path = unique_path(opt, path, branch); strmap_put(&opt->priv->paths, path, new_ci); - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_FILE_DIRECTORY, 0, + path, old_path, NULL, NULL, _("CONFLICT (file/directory): directory in the way " "of %s from %s; moving it to %s instead."), old_path, branch, path); @@ -3716,15 +3936,23 @@ static void process_entry(struct merge_options *opt, rename_b = 1; } + if (rename_a) + a_path = unique_path(opt, path, opt->branch1); + if (rename_b) + b_path = unique_path(opt, path, opt->branch2); + if (rename_a && rename_b) { - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_DISTINCT_MODES, 0, + path, a_path, b_path, NULL, _("CONFLICT (distinct types): %s had " "different types on each side; " "renamed both of them so each can " "be recorded somewhere."), path); } else { - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_DISTINCT_MODES, 0, + path, rename_a ? a_path : b_path, + NULL, NULL, _("CONFLICT (distinct types): %s had " "different types on each side; " "renamed one of them so each can be " @@ -3761,16 +3989,10 @@ static void process_entry(struct merge_options *opt, /* Insert entries into opt->priv_paths */ assert(rename_a || rename_b); - if (rename_a) { - a_path = unique_path(&opt->priv->paths, - path, opt->branch1); + if (rename_a) strmap_put(&opt->priv->paths, a_path, ci); - } - if (rename_b) - b_path = unique_path(&opt->priv->paths, - path, opt->branch2); - else + if (!rename_b) b_path = path; strmap_put(&opt->priv->paths, b_path, new_ci); @@ -3821,7 +4043,8 @@ static void process_entry(struct merge_options *opt, reason = _("add/add"); if (S_ISGITLINK(merged_file.mode)) reason = _("submodule"); - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_CONTENTS, 0, + path, NULL, NULL, NULL, _("CONFLICT (%s): Merge conflict in %s"), reason, path); } @@ -3865,7 +4088,8 @@ static void process_entry(struct merge_options *opt, * since the contents were not modified. */ } else { - path_msg(opt, path, 0, + path_msg(opt, CONFLICT_MODIFY_DELETE, 0, + path, NULL, NULL, NULL, _("CONFLICT (modify/delete): %s deleted in %s " "and modified in %s. Version %s of %s left " "in tree."), @@ -4017,8 +4241,8 @@ static void process_entries(struct merge_options *opt, trace2_region_enter("merge", "process_entries cleanup", opt->repo); if (dir_metadata.offsets.nr != 1 || (uintptr_t)dir_metadata.offsets.items[0].util != 0) { - printf("dir_metadata.offsets.nr = %d (should be 1)\n", - dir_metadata.offsets.nr); + printf("dir_metadata.offsets.nr = %"PRIuMAX" (should be 1)\n", + (uintmax_t)dir_metadata.offsets.nr); printf("dir_metadata.offsets.items[0].util = %u (should be 0)\n", (unsigned)(uintptr_t)dir_metadata.offsets.items[0].util); fflush(stdout); @@ -4157,15 +4381,15 @@ static int record_conflicted_index_entries(struct merge_options *opt) struct stat st; if (!lstat(path, &st)) { - char *new_name = unique_path(&opt->priv->paths, + char *new_name = unique_path(opt, path, "cruft"); - path_msg(opt, path, 1, + path_msg(opt, CONFLICT_PRESENT_DESPITE_SKIPPED, 1, + path, NULL, NULL, NULL, _("Note: %s not up to date and in way of checking out conflicted version; old copy renamed to %s"), path, new_name); errs |= rename(path, new_name); - free(new_name); } errs |= checkout_entry(ce, &state, NULL, NULL); } @@ -4210,6 +4434,93 @@ static int record_conflicted_index_entries(struct merge_options *opt) return errs; } +void merge_display_update_messages(struct merge_options *opt, + int detailed, + struct merge_result *result) +{ + struct merge_options_internal *opti = result->priv; + struct hashmap_iter iter; + struct strmap_entry *e; + struct string_list olist = STRING_LIST_INIT_NODUP; + + if (opt->record_conflict_msgs_as_headers) + BUG("Either display conflict messages or record them as headers, not both"); + + trace2_region_enter("merge", "display messages", opt->repo); + + /* Hack to pre-allocate olist to the desired size */ + ALLOC_GROW(olist.items, strmap_get_size(&opti->conflicts), + olist.alloc); + + /* Put every entry from output into olist, then sort */ + strmap_for_each_entry(&opti->conflicts, &iter, e) { + string_list_append(&olist, e->key)->util = e->value; + } + string_list_sort(&olist); + + /* Iterate over the items, printing them */ + for (int path_nr = 0; path_nr < olist.nr; ++path_nr) { + struct string_list *conflicts = olist.items[path_nr].util; + for (int i = 0; i < conflicts->nr; i++) { + struct logical_conflict_info *info = + conflicts->items[i].util; + + if (detailed) { + printf("%lu", (unsigned long)info->paths.nr); + putchar('\0'); + for (int n = 0; n < info->paths.nr; n++) { + fputs(info->paths.v[n], stdout); + putchar('\0'); + } + fputs(type_short_descriptions[info->type], + stdout); + putchar('\0'); + } + puts(conflicts->items[i].string); + if (detailed) + putchar('\0'); + } + } + string_list_clear(&olist, 0); + + /* Also include needed rename limit adjustment now */ + diff_warn_rename_limit("merge.renamelimit", + opti->renames.needed_limit, 0); + + trace2_region_leave("merge", "display messages", opt->repo); +} + +void merge_get_conflicted_files(struct merge_result *result, + struct string_list *conflicted_files) +{ + struct hashmap_iter iter; + struct strmap_entry *e; + struct merge_options_internal *opti = result->priv; + + strmap_for_each_entry(&opti->conflicted, &iter, e) { + const char *path = e->key; + struct conflict_info *ci = e->value; + int i; + + VERIFY_CI(ci); + + for (i = MERGE_BASE; i <= MERGE_SIDE2; i++) { + struct stage_info *si; + + if (!(ci->filemask & (1ul << i))) + continue; + + si = xmalloc(sizeof(*si)); + si->stage = i+1; + si->mode = ci->stages[i].mode; + oidcpy(&si->oid, &ci->stages[i].oid); + string_list_append(conflicted_files, path)->util = si; + } + } + /* string_list_sort() uses a stable sort, so we're good */ + string_list_sort(conflicted_files); +} + void merge_switch_to_result(struct merge_options *opt, struct tree *head, struct merge_result *result, @@ -4252,40 +4563,8 @@ void merge_switch_to_result(struct merge_options *opt, fclose(fp); trace2_region_leave("merge", "write_auto_merge", opt->repo); } - - if (display_update_msgs) { - struct merge_options_internal *opti = result->priv; - struct hashmap_iter iter; - struct strmap_entry *e; - struct string_list olist = STRING_LIST_INIT_NODUP; - int i; - - trace2_region_enter("merge", "display messages", opt->repo); - - /* Hack to pre-allocate olist to the desired size */ - ALLOC_GROW(olist.items, strmap_get_size(&opti->output), - olist.alloc); - - /* Put every entry from output into olist, then sort */ - strmap_for_each_entry(&opti->output, &iter, e) { - string_list_append(&olist, e->key)->util = e->value; - } - string_list_sort(&olist); - - /* Iterate over the items, printing them */ - for (i = 0; i < olist.nr; ++i) { - struct strbuf *sb = olist.items[i].util; - - printf("%s", sb->buf); - } - string_list_clear(&olist, 0); - - /* Also include needed rename limit adjustment now */ - diff_warn_rename_limit("merge.renamelimit", - opti->renames.needed_limit, 0); - - trace2_region_leave("merge", "display messages", opt->repo); - } + if (display_update_msgs) + merge_display_update_messages(opt, /* detailed */ 0, result); merge_finalize(opt, result); } @@ -4361,6 +4640,9 @@ static void merge_start(struct merge_options *opt, struct merge_result *result) assert(opt->recursive_variant >= MERGE_VARIANT_NORMAL && opt->recursive_variant <= MERGE_VARIANT_THEIRS); + if (opt->msg_header_prefix) + assert(opt->record_conflict_msgs_as_headers); + /* * detect_renames, verbosity, buffer_output, and obuf are ignored * fields that were used by "recursive" rather than "ort" -- but @@ -4456,11 +4738,11 @@ static void merge_start(struct merge_options *opt, struct merge_result *result) strmap_init_with_options(&opt->priv->conflicted, pool, 0); /* - * keys & strbufs in output will sometimes need to outlive "paths", - * so it will have a copy of relevant keys. It's probably a small - * subset of the overall paths that have special output. + * keys & string_lists in conflicts will sometimes need to outlive + * "paths", so it will have a copy of relevant keys. It's probably + * a small subset of the overall paths that have special output. */ - strmap_init(&opt->priv->output); + strmap_init(&opt->priv->conflicts); trace2_region_leave("merge", "allocate/init", opt->repo); } @@ -4561,6 +4843,8 @@ redo: trace2_region_leave("merge", "process_entries", opt->repo); /* Set return values */ + result->path_messages = &opt->priv->conflicts; + result->tree = parse_tree_indirect(&working_tree_oid); /* existence of conflicted entries implies unclean */ result->clean &= strmap_empty(&opt->priv->conflicted); @@ -4580,7 +4864,7 @@ static void merge_ort_internal(struct merge_options *opt, struct commit *h2, struct merge_result *result) { - struct commit_list *iter; + struct commit *next; struct commit *merged_merge_bases; const char *ancestor_name; struct strbuf merge_base_abbrev = STRBUF_INIT; @@ -4592,7 +4876,7 @@ static void merge_ort_internal(struct merge_options *opt, } merged_merge_bases = pop_commit(&merge_bases); - if (merged_merge_bases == NULL) { + if (!merged_merge_bases) { /* if there is no common ancestor, use an empty tree */ struct tree *tree; @@ -4609,7 +4893,8 @@ static void merge_ort_internal(struct merge_options *opt, ancestor_name = merge_base_abbrev.buf; } - for (iter = merge_bases; iter; iter = iter->next) { + for (next = pop_commit(&merge_bases); next; + next = pop_commit(&merge_bases)) { const char *saved_b1, *saved_b2; struct commit *prev = merged_merge_bases; @@ -4626,7 +4911,7 @@ static void merge_ort_internal(struct merge_options *opt, saved_b2 = opt->branch2; opt->branch1 = "Temporary merge branch 1"; opt->branch2 = "Temporary merge branch 2"; - merge_ort_internal(opt, NULL, prev, iter->item, result); + merge_ort_internal(opt, NULL, prev, next, result); if (result->clean < 0) return; opt->branch1 = saved_b1; @@ -4637,8 +4922,7 @@ static void merge_ort_internal(struct merge_options *opt, result->tree, "merged tree"); commit_list_insert(prev, &merged_merge_bases->parents); - commit_list_insert(iter->item, - &merged_merge_bases->parents->next); + commit_list_insert(next, &merged_merge_bases->parents->next); clear_or_reinit_internal_opts(opt->priv, 1); } |