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[80.216.12.205]) by smtp.gmail.com with ESMTPSA id g16-v6sm2102525lfb.5.2018.09.09.01.54.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 09 Sep 2018 01:54:48 -0700 (PDT) From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= To: pclouds@gmail.com Cc: git@vger.kernel.org, sbeller@google.com, Junio C Hamano Subject: [PATCH v3 16/23] rerere.c: remove implicit dependency on the_index Date: Sun, 9 Sep 2018 10:54:11 +0200 Message-Id: <20180909085418.31531-17-pclouds@gmail.com> X-Mailer: git-send-email 2.19.0.rc0.337.ge906d732e7 In-Reply-To: <20180909085418.31531-1-pclouds@gmail.com> References: <20180903180932.32260-1-pclouds@gmail.com> <20180909085418.31531-1-pclouds@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org The reason rerere(), rerere_forget() and rerere_remaining() take a struct repository instead of struct index_state is not obvious from the patch: Deep in update_paths() and find_conflict(), hold_locked_index() and read_index() are called. These functions assumes the index path at $GIT_DIR/index which is not always true when you take an arbitrary index state. Taking a repository will allow us to point to the right index path later when we replace them with repo_ versions. --- apply.c | 2 +- builtin/am.c | 4 +- builtin/commit.c | 2 +- builtin/merge.c | 2 +- builtin/rerere.c | 6 +-- rerere.c | 119 +++++++++++++++++++++++++---------------------- rerere.h | 10 ++-- sequencer.c | 4 +- 8 files changed, 81 insertions(+), 68 deletions(-) diff --git a/apply.c b/apply.c index ea111ab13f..571b89c2e0 100644 --- a/apply.c +++ b/apply.c @@ -4630,7 +4630,7 @@ static int write_out_results(struct apply_state *state, struct patch *list) } string_list_clear(&cpath, 0); - rerere(0); + repo_rerere(state->repo, 0); } return errs; diff --git a/builtin/am.c b/builtin/am.c index 9f7ecf6ecb..45344af676 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -1603,7 +1603,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa o.verbosity = 0; if (merge_recursive_generic(&o, &our_tree, &their_tree, 1, bases, &result)) { - rerere(state->allow_rerere_autoupdate); + repo_rerere(the_repository, state->allow_rerere_autoupdate); free(their_tree_name); return error(_("Failed to merge in the changes.")); } @@ -1898,7 +1898,7 @@ static void am_resolve(struct am_state *state) goto next; } - rerere(0); + repo_rerere(the_repository, 0); do_commit(state); diff --git a/builtin/commit.c b/builtin/commit.c index 0d9828e29e..bf06fbf49f 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -1651,7 +1651,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) "new_index file. Check that disk is not full and quota is\n" "not exceeded, and then \"git reset HEAD\" to recover.")); - rerere(0); + repo_rerere(the_repository, 0); run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); run_commit_hook(use_editor, get_index_file(), "post-commit", NULL); if (amend && !no_post_rewrite) { diff --git a/builtin/merge.c b/builtin/merge.c index 5f79fc5fd7..3c003ce797 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -899,7 +899,7 @@ static int suggest_conflicts(void) fputs(msgbuf.buf, fp); strbuf_release(&msgbuf); fclose(fp); - rerere(allow_rerere_auto); + repo_rerere(the_repository, allow_rerere_auto); printf(_("Automatic merge failed; " "fix conflicts and then commit the result.\n")); return 1; diff --git a/builtin/rerere.c b/builtin/rerere.c index 0bc40298c2..1ca271b711 100644 --- a/builtin/rerere.c +++ b/builtin/rerere.c @@ -70,7 +70,7 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) flags = RERERE_NOAUTOUPDATE; if (argc < 1) - return rerere(flags); + return repo_rerere(the_repository, flags); if (!strcmp(argv[0], "forget")) { struct pathspec pathspec; @@ -78,7 +78,7 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) warning("'git rerere forget' without paths is deprecated"); parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD, prefix, argv + 1); - return rerere_forget(&pathspec); + return rerere_forget(the_repository, &pathspec); } if (!strcmp(argv[0], "clear")) { @@ -91,7 +91,7 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) for (i = 0; i < merge_rr.nr; i++) printf("%s\n", merge_rr.items[i].string); } else if (!strcmp(argv[0], "remaining")) { - rerere_remaining(&merge_rr); + rerere_remaining(the_repository, &merge_rr); for (i = 0; i < merge_rr.nr; i++) { if (merge_rr.items[i].util != RERERE_RESOLVED) printf("%s\n", merge_rr.items[i].string); diff --git a/rerere.c b/rerere.c index e65d8fc06f..8d4ac8426b 100644 --- a/rerere.c +++ b/rerere.c @@ -474,11 +474,12 @@ static int handle_path(unsigned char *sha1, struct rerere_io *io, int marker_siz * Scan the path for conflicts, do the "handle_path()" thing above, and * return the number of conflict hunks found. */ -static int handle_file(const char *path, unsigned char *sha1, const char *output) +static int handle_file(struct index_state *istate, const char *path, + unsigned char *sha1, const char *output) { int hunk_no = 0; struct rerere_io_file io; - int marker_size = ll_merge_marker_size(&the_index, path); + int marker_size = ll_merge_marker_size(istate, path); memset(&io, 0, sizeof(io)); io.io.getline = rerere_file_getline; @@ -523,9 +524,9 @@ static int handle_file(const char *path, unsigned char *sha1, const char *output * stages we have already looked at in this invocation of this * function. */ -static int check_one_conflict(int i, int *type) +static int check_one_conflict(struct index_state *istate, int i, int *type) { - const struct cache_entry *e = active_cache[i]; + const struct cache_entry *e = istate->cache[i]; if (!ce_stage(e)) { *type = RESOLVED; @@ -533,13 +534,13 @@ static int check_one_conflict(int i, int *type) } *type = PUNTED; - while (ce_stage(active_cache[i]) == 1) + while (ce_stage(istate->cache[i]) == 1) i++; /* Only handle regular files with both stages #2 and #3 */ - if (i + 1 < active_nr) { - const struct cache_entry *e2 = active_cache[i]; - const struct cache_entry *e3 = active_cache[i + 1]; + if (i + 1 < istate->cache_nr) { + const struct cache_entry *e2 = istate->cache[i]; + const struct cache_entry *e3 = istate->cache[i + 1]; if (ce_stage(e2) == 2 && ce_stage(e3) == 3 && ce_same_name(e, e3) && @@ -549,7 +550,7 @@ static int check_one_conflict(int i, int *type) } /* Skip the entries with the same name */ - while (i < active_nr && ce_same_name(e, active_cache[i])) + while (i < istate->cache_nr && ce_same_name(e, istate->cache[i])) i++; return i; } @@ -565,16 +566,17 @@ static int check_one_conflict(int i, int *type) * are identical to the previous round, might want to be handled, * though. */ -static int find_conflict(struct string_list *conflict) +static int find_conflict(struct repository *r, struct string_list *conflict) { int i; - if (read_cache() < 0) + + if (read_index(r->index) < 0) return error("Could not read index"); - for (i = 0; i < active_nr;) { + for (i = 0; i < r->index->cache_nr;) { int conflict_type; - const struct cache_entry *e = active_cache[i]; - i = check_one_conflict(i, &conflict_type); + const struct cache_entry *e = r->index->cache[i]; + i = check_one_conflict(r->index, i, &conflict_type); if (conflict_type == THREE_STAGED) string_list_insert(conflict, (const char *)e->name); } @@ -596,18 +598,19 @@ static int find_conflict(struct string_list *conflict) * NEEDSWORK: we may want to fix the caller that implements "rerere * remaining" to do this without abusing merge_rr. */ -int rerere_remaining(struct string_list *merge_rr) +int rerere_remaining(struct repository *r, struct string_list *merge_rr) { int i; + if (setup_rerere(merge_rr, RERERE_READONLY)) return 0; - if (read_cache() < 0) + if (read_index(r->index) < 0) return error("Could not read index"); - for (i = 0; i < active_nr;) { + for (i = 0; i < r->index->cache_nr;) { int conflict_type; - const struct cache_entry *e = active_cache[i]; - i = check_one_conflict(i, &conflict_type); + const struct cache_entry *e = r->index->cache[i]; + i = check_one_conflict(r->index, i, &conflict_type); if (conflict_type == PUNTED) string_list_insert(merge_rr, (const char *)e->name); else if (conflict_type == RESOLVED) { @@ -627,7 +630,8 @@ int rerere_remaining(struct string_list *merge_rr) * if that recorded conflict resolves cleanly what we * got in the "cur". */ -static int try_merge(const struct rerere_id *id, const char *path, +static int try_merge(struct index_state *istate, + const struct rerere_id *id, const char *path, mmfile_t *cur, mmbuffer_t *result) { int ret; @@ -642,7 +646,7 @@ static int try_merge(const struct rerere_id *id, const char *path, * low-level merge driver settings. */ ret = ll_merge(result, path, &base, NULL, cur, "", &other, "", - &the_index, NULL); + istate, NULL); free(base.ptr); free(other.ptr); @@ -660,7 +664,7 @@ static int try_merge(const struct rerere_id *id, const char *path, * Returns 0 for successful replay of recorded resolution, or non-zero * for failure. */ -static int merge(const struct rerere_id *id, const char *path) +static int merge(struct index_state *istate, const struct rerere_id *id, const char *path) { FILE *f; int ret; @@ -671,13 +675,13 @@ static int merge(const struct rerere_id *id, const char *path) * Normalize the conflicts in path and write it out to * "thisimage" temporary file. */ - if ((handle_file(path, NULL, rerere_path(id, "thisimage")) < 0) || + if ((handle_file(istate, path, NULL, rerere_path(id, "thisimage")) < 0) || read_mmfile(&cur, rerere_path(id, "thisimage"))) { ret = 1; goto out; } - ret = try_merge(id, path, &cur, &result); + ret = try_merge(istate, id, path, &cur, &result); if (ret) goto out; @@ -705,7 +709,7 @@ static int merge(const struct rerere_id *id, const char *path) return ret; } -static void update_paths(struct string_list *update) +static void update_paths(struct repository *r, struct string_list *update) { struct lock_file index_lock = LOCK_INIT; int i; @@ -714,13 +718,13 @@ static void update_paths(struct string_list *update) for (i = 0; i < update->nr; i++) { struct string_list_item *item = &update->items[i]; - if (add_file_to_cache(item->string, 0)) + if (add_file_to_index(r->index, item->string, 0)) exit(128); fprintf(stderr, "Staged '%s' using previous resolution.\n", item->string); } - if (write_locked_index(&the_index, &index_lock, + if (write_locked_index(r->index, &index_lock, COMMIT_LOCK | SKIP_IF_UNCHANGED)) die("Unable to write new index file"); } @@ -739,7 +743,8 @@ static void remove_variant(struct rerere_id *id) * only have the preimage for that conflict, in which case the result * needs to be recorded as a resolution in a postimage file. */ -static void do_rerere_one_path(struct string_list_item *rr_item, +static void do_rerere_one_path(struct index_state *istate, + struct string_list_item *rr_item, struct string_list *update) { const char *path = rr_item->string; @@ -751,7 +756,7 @@ static void do_rerere_one_path(struct string_list_item *rr_item, /* Has the user resolved it already? */ if (variant >= 0) { - if (!handle_file(path, NULL, NULL)) { + if (!handle_file(istate, path, NULL, NULL)) { copy_file(rerere_path(id, "postimage"), path, 0666); id->collection->status[variant] |= RR_HAS_POSTIMAGE; fprintf(stderr, "Recorded resolution for '%s'.\n", path); @@ -775,7 +780,7 @@ static void do_rerere_one_path(struct string_list_item *rr_item, continue; vid.variant = variant; - if (merge(&vid, path)) + if (merge(istate, &vid, path)) continue; /* failed to replay */ /* @@ -800,7 +805,7 @@ static void do_rerere_one_path(struct string_list_item *rr_item, assign_variant(id); variant = id->variant; - handle_file(path, NULL, rerere_path(id, "preimage")); + handle_file(istate, path, NULL, rerere_path(id, "preimage")); if (id->collection->status[variant] & RR_HAS_POSTIMAGE) { const char *path = rerere_path(id, "postimage"); if (unlink(path)) @@ -811,13 +816,14 @@ static void do_rerere_one_path(struct string_list_item *rr_item, fprintf(stderr, "Recorded preimage for '%s'\n", path); } -static int do_plain_rerere(struct string_list *rr, int fd) +static int do_plain_rerere(struct repository *r, + struct string_list *rr, int fd) { struct string_list conflict = STRING_LIST_INIT_DUP; struct string_list update = STRING_LIST_INIT_DUP; int i; - find_conflict(&conflict); + find_conflict(r, &conflict); /* * MERGE_RR records paths with conflicts immediately after @@ -839,7 +845,7 @@ static int do_plain_rerere(struct string_list *rr, int fd) * conflict ID. No need to write anything out * yet. */ - ret = handle_file(path, sha1, NULL); + ret = handle_file(r->index, path, sha1, NULL); if (ret < 1) continue; @@ -851,10 +857,10 @@ static int do_plain_rerere(struct string_list *rr, int fd) } for (i = 0; i < rr->nr; i++) - do_rerere_one_path(&rr->items[i], &update); + do_rerere_one_path(r->index, &rr->items[i], &update); if (update.nr) - update_paths(&update); + update_paths(r, &update); return write_rr(rr, fd); } @@ -909,7 +915,7 @@ int setup_rerere(struct string_list *merge_rr, int flags) * perform mergy operations, possibly leaving conflicted index entries * and working tree files. */ -int rerere(int flags) +int repo_rerere(struct repository *r, int flags) { struct string_list merge_rr = STRING_LIST_INIT_DUP; int fd, status; @@ -917,7 +923,7 @@ int rerere(int flags) fd = setup_rerere(&merge_rr, flags); if (fd < 0) return 0; - status = do_plain_rerere(&merge_rr, fd); + status = do_plain_rerere(r, &merge_rr, fd); free_rerere_dirs(); return status; } @@ -954,29 +960,30 @@ static int rerere_mem_getline(struct strbuf *sb, struct rerere_io *io_) return 0; } -static int handle_cache(const char *path, unsigned char *sha1, const char *output) +static int handle_cache(struct index_state *istate, const char *path, + unsigned char *sha1, const char *output) { mmfile_t mmfile[3] = {{NULL}}; mmbuffer_t result = {NULL, 0}; const struct cache_entry *ce; int pos, len, i, hunk_no; struct rerere_io_mem io; - int marker_size = ll_merge_marker_size(&the_index, path); + int marker_size = ll_merge_marker_size(istate, path); /* * Reproduce the conflicted merge in-core */ len = strlen(path); - pos = cache_name_pos(path, len); + pos = index_name_pos(istate, path, len); if (0 <= pos) return -1; pos = -pos - 1; - while (pos < active_nr) { + while (pos < istate->cache_nr) { enum object_type type; unsigned long size; - ce = active_cache[pos++]; + ce = istate->cache[pos++]; if (ce_namelen(ce) != len || memcmp(ce->name, path, len)) break; i = ce_stage(ce) - 1; @@ -997,7 +1004,7 @@ static int handle_cache(const char *path, unsigned char *sha1, const char *outpu ll_merge(&result, path, &mmfile[0], NULL, &mmfile[1], "ours", &mmfile[2], "theirs", - &the_index, NULL); + istate, NULL); for (i = 0; i < 3; i++) free(mmfile[i].ptr); @@ -1021,7 +1028,9 @@ static int handle_cache(const char *path, unsigned char *sha1, const char *outpu return hunk_no; } -static int rerere_forget_one_path(const char *path, struct string_list *rr) +static int rerere_forget_one_path(struct index_state *istate, + const char *path, + struct string_list *rr) { const char *filename; struct rerere_id *id; @@ -1033,7 +1042,7 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr) * Recreate the original conflict from the stages in the * index and compute the conflict ID */ - ret = handle_cache(path, sha1, NULL); + ret = handle_cache(istate, path, sha1, NULL); if (ret < 1) return error("Could not parse conflict hunks in '%s'", path); @@ -1050,13 +1059,13 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr) if (!has_rerere_resolution(id)) continue; - handle_cache(path, sha1, rerere_path(id, "thisimage")); + handle_cache(istate, path, sha1, rerere_path(id, "thisimage")); if (read_mmfile(&cur, rerere_path(id, "thisimage"))) { free(cur.ptr); error("Failed to update conflicted state in '%s'", path); goto fail_exit; } - cleanly_resolved = !try_merge(id, path, &cur, &result); + cleanly_resolved = !try_merge(istate, id, path, &cur, &result); free(result.ptr); free(cur.ptr); if (cleanly_resolved) @@ -1082,7 +1091,7 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr) * conflict in the working tree, run us again to record * the postimage. */ - handle_cache(path, sha1, rerere_path(id, "preimage")); + handle_cache(istate, path, sha1, rerere_path(id, "preimage")); fprintf(stderr, "Updated preimage for '%s'\n", path); /* @@ -1100,13 +1109,13 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr) return -1; } -int rerere_forget(struct pathspec *pathspec) +int rerere_forget(struct repository *r, struct pathspec *pathspec) { int i, fd; struct string_list conflict = STRING_LIST_INIT_DUP; struct string_list merge_rr = STRING_LIST_INIT_DUP; - if (read_cache() < 0) + if (read_index(r->index) < 0) return error("Could not read index"); fd = setup_rerere(&merge_rr, RERERE_NOAUTOUPDATE); @@ -1118,14 +1127,14 @@ int rerere_forget(struct pathspec *pathspec) * recover the original conflicted state and then * find the conflicted paths. */ - unmerge_cache(pathspec); - find_conflict(&conflict); + unmerge_index(r->index, pathspec); + find_conflict(r, &conflict); for (i = 0; i < conflict.nr; i++) { struct string_list_item *it = &conflict.items[i]; - if (!match_pathspec(&the_index, pathspec, it->string, + if (!match_pathspec(r->index, pathspec, it->string, strlen(it->string), 0, NULL, 0)) continue; - rerere_forget_one_path(it->string, &merge_rr); + rerere_forget_one_path(r->index, it->string, &merge_rr); } return write_rr(&merge_rr, fd); } diff --git a/rerere.h b/rerere.h index cd948f28f4..5ad8864b3c 100644 --- a/rerere.h +++ b/rerere.h @@ -4,6 +4,7 @@ #include "string-list.h" struct pathspec; +struct repository; #define RERERE_AUTOUPDATE 01 #define RERERE_NOAUTOUPDATE 02 @@ -23,7 +24,10 @@ struct rerere_id { }; int setup_rerere(struct string_list *, int); -int rerere(int); +#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS +#define rerere(flags) repo_rerere(the_repository, flags) +#endif +int repo_rerere(struct repository *, int); /* * Given the conflict ID and the name of a "file" used for replaying * the recorded resolution (e.g. "preimage", "postimage"), return the @@ -31,8 +35,8 @@ int rerere(int); * return the path to the directory that houses these files. */ const char *rerere_path(const struct rerere_id *, const char *file); -int rerere_forget(struct pathspec *); -int rerere_remaining(struct string_list *); +int rerere_forget(struct repository *, struct pathspec *); +int rerere_remaining(struct repository *, struct string_list *); void rerere_clear(struct string_list *); void rerere_gc(struct string_list *); diff --git a/sequencer.c b/sequencer.c index 47d0e7b0bd..53888bf1a8 100644 --- a/sequencer.c +++ b/sequencer.c @@ -1827,7 +1827,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, : _("could not apply %s... %s"), short_commit_name(commit), msg.subject); print_advice(res == 1, opts); - rerere(opts->allow_rerere_auto); + repo_rerere(the_repository, opts->allow_rerere_auto); goto leave; } @@ -3146,7 +3146,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, rollback_lock_file(&lock); if (ret) - rerere(opts->allow_rerere_auto); + repo_rerere(the_repository, opts->allow_rerere_auto); else /* * In case of problems, we now want to return a positive -- 2.19.0.rc0.337.ge906d732e7