diff options
Diffstat (limited to 'refs/reftable-backend.c')
| -rw-r--r-- | refs/reftable-backend.c | 503 |
1 files changed, 297 insertions, 206 deletions
diff --git a/refs/reftable-backend.c b/refs/reftable-backend.c index 1cda48c504..fbe74c239d 100644 --- a/refs/reftable-backend.c +++ b/refs/reftable-backend.c @@ -1,6 +1,10 @@ +#define USE_THE_REPOSITORY_VARIABLE + #include "../git-compat-util.h" #include "../abspath.h" #include "../chdir-notify.h" +#include "../config.h" +#include "../dir.h" #include "../environment.h" #include "../gettext.h" #include "../hash.h" @@ -15,7 +19,6 @@ #include "../reftable/reftable-record.h" #include "../reftable/reftable-error.h" #include "../reftable/reftable-iterator.h" -#include "../reftable/reftable-merged.h" #include "../setup.h" #include "../strmap.h" #include "parse.h" @@ -129,7 +132,7 @@ static struct reftable_stack *stack_for(struct reftable_ref_store *store, store->base.repo->commondir, wtname_buf.buf); store->err = reftable_new_stack(&stack, wt_dir.buf, - store->write_options); + &store->write_options); assert(store->err != REFTABLE_API_ERROR); strmap_put(&store->worktree_stacks, wtname_buf.buf, stack); } @@ -172,32 +175,30 @@ static int should_write_log(struct ref_store *refs, const char *refname) } } -static void fill_reftable_log_record(struct reftable_log_record *log) +static void fill_reftable_log_record(struct reftable_log_record *log, const struct ident_split *split) { - const char *info = git_committer_info(0); - struct ident_split split = {0}; + const char *tz_begin; int sign = 1; - if (split_ident_line(&split, info, strlen(info))) - BUG("failed splitting committer info"); - reftable_log_record_release(log); log->value_type = REFTABLE_LOG_UPDATE; log->value.update.name = - xstrndup(split.name_begin, split.name_end - split.name_begin); + xstrndup(split->name_begin, split->name_end - split->name_begin); log->value.update.email = - xstrndup(split.mail_begin, split.mail_end - split.mail_begin); - log->value.update.time = atol(split.date_begin); - if (*split.tz_begin == '-') { + xstrndup(split->mail_begin, split->mail_end - split->mail_begin); + log->value.update.time = atol(split->date_begin); + + tz_begin = split->tz_begin; + if (*tz_begin == '-') { sign = -1; - split.tz_begin++; + tz_begin++; } - if (*split.tz_begin == '+') { + if (*tz_begin == '+') { sign = 1; - split.tz_begin++; + tz_begin++; } - log->value.update.tz_offset = sign * atoi(split.tz_begin); + log->value.update.tz_offset = sign * atoi(tz_begin); } static int read_ref_without_reload(struct reftable_stack *stack, @@ -218,7 +219,8 @@ static int read_ref_without_reload(struct reftable_stack *stack, strbuf_addstr(referent, ref.value.symref); *type |= REF_ISSYMREF; } else if (reftable_ref_record_val1(&ref)) { - oidread(oid, reftable_ref_record_val1(&ref)); + oidread(oid, reftable_ref_record_val1(&ref), + the_repository->hash_algo); } else { /* We got a tombstone, which should not happen. */ BUG("unhandled reference value type %d", ref.value_type); @@ -230,6 +232,34 @@ done: return ret; } +static int reftable_be_config(const char *var, const char *value, + const struct config_context *ctx, + void *_opts) +{ + struct reftable_write_options *opts = _opts; + + if (!strcmp(var, "reftable.blocksize")) { + unsigned long block_size = git_config_ulong(var, value, ctx->kvi); + if (block_size > 16777215) + die("reftable block size cannot exceed 16MB"); + opts->block_size = block_size; + } else if (!strcmp(var, "reftable.restartinterval")) { + unsigned long restart_interval = git_config_ulong(var, value, ctx->kvi); + if (restart_interval > UINT16_MAX) + die("reftable block size cannot exceed %u", (unsigned)UINT16_MAX); + opts->restart_interval = restart_interval; + } else if (!strcmp(var, "reftable.indexobjects")) { + opts->skip_index_objects = !git_config_bool(var, value); + } else if (!strcmp(var, "reftable.geometricfactor")) { + unsigned long factor = git_config_ulong(var, value, ctx->kvi); + if (factor > UINT8_MAX) + die("reftable geometric factor cannot exceed %u", (unsigned)UINT8_MAX); + opts->auto_compaction_factor = factor; + } + + return 0; +} + static struct ref_store *reftable_be_init(struct repository *repo, const char *gitdir, unsigned int store_flags) @@ -245,12 +275,24 @@ static struct ref_store *reftable_be_init(struct repository *repo, base_ref_store_init(&refs->base, repo, gitdir, &refs_be_reftable); strmap_init(&refs->worktree_stacks); refs->store_flags = store_flags; - refs->write_options.block_size = 4096; + refs->write_options.hash_id = repo->hash_algo->format_id; refs->write_options.default_permissions = calc_shared_perm(0666 & ~mask); refs->write_options.disable_auto_compact = !git_env_bool("GIT_TEST_REFTABLE_AUTOCOMPACTION", 1); + git_config(reftable_be_config, &refs->write_options); + + /* + * It is somewhat unfortunate that we have to mirror the default block + * size of the reftable library here. But given that the write options + * wouldn't be updated by the library here, and given that we require + * the proper block size to trim reflog message so that they fit, we + * must set up a proper value here. + */ + if (!refs->write_options.block_size) + refs->write_options.block_size = 4096; + /* * Set up the main reftable stack that is hosted in GIT_COMMON_DIR. * This stack contains both the shared and the main worktree refs. @@ -265,7 +307,7 @@ static struct ref_store *reftable_be_init(struct repository *repo, } strbuf_addstr(&path, "/reftable"); refs->err = reftable_new_stack(&refs->main_stack, path.buf, - refs->write_options); + &refs->write_options); if (refs->err) goto done; @@ -282,7 +324,7 @@ static struct ref_store *reftable_be_init(struct repository *repo, strbuf_addf(&path, "%s/reftable", gitdir); refs->err = reftable_new_stack(&refs->worktree_stack, path.buf, - refs->write_options); + &refs->write_options); if (refs->err) goto done; } @@ -295,12 +337,33 @@ done: return &refs->base; } -static int reftable_be_init_db(struct ref_store *ref_store, - int flags UNUSED, - struct strbuf *err UNUSED) +static void reftable_be_release(struct ref_store *ref_store) +{ + struct reftable_ref_store *refs = reftable_be_downcast(ref_store, 0, "release"); + struct strmap_entry *entry; + struct hashmap_iter iter; + + if (refs->main_stack) { + reftable_stack_destroy(refs->main_stack); + refs->main_stack = NULL; + } + + if (refs->worktree_stack) { + reftable_stack_destroy(refs->worktree_stack); + refs->worktree_stack = NULL; + } + + strmap_for_each_entry(&refs->worktree_stacks, &iter, entry) + reftable_stack_destroy(entry->value); + strmap_clear(&refs->worktree_stacks, 0); +} + +static int reftable_be_create_on_disk(struct ref_store *ref_store, + int flags UNUSED, + struct strbuf *err UNUSED) { struct reftable_ref_store *refs = - reftable_be_downcast(ref_store, REF_STORE_WRITE, "init_db"); + reftable_be_downcast(ref_store, REF_STORE_WRITE, "create"); struct strbuf sb = STRBUF_INIT; strbuf_addf(&sb, "%s/reftable", refs->base.gitdir); @@ -324,6 +387,56 @@ static int reftable_be_init_db(struct ref_store *ref_store, return 0; } +static int reftable_be_remove_on_disk(struct ref_store *ref_store, + struct strbuf *err) +{ + struct reftable_ref_store *refs = + reftable_be_downcast(ref_store, REF_STORE_WRITE, "remove"); + struct strbuf sb = STRBUF_INIT; + int ret = 0; + + /* + * Release the ref store such that all stacks are closed. This is + * required so that the "tables.list" file is not open anymore, which + * would otherwise make it impossible to remove the file on Windows. + */ + reftable_be_release(ref_store); + + strbuf_addf(&sb, "%s/reftable", refs->base.gitdir); + if (remove_dir_recursively(&sb, 0) < 0) { + strbuf_addf(err, "could not delete reftables: %s", + strerror(errno)); + ret = -1; + } + strbuf_reset(&sb); + + strbuf_addf(&sb, "%s/HEAD", refs->base.gitdir); + if (unlink(sb.buf) < 0) { + strbuf_addf(err, "could not delete stub HEAD: %s", + strerror(errno)); + ret = -1; + } + strbuf_reset(&sb); + + strbuf_addf(&sb, "%s/refs/heads", refs->base.gitdir); + if (unlink(sb.buf) < 0) { + strbuf_addf(err, "could not delete stub heads: %s", + strerror(errno)); + ret = -1; + } + strbuf_reset(&sb); + + strbuf_addf(&sb, "%s/refs", refs->base.gitdir); + if (rmdir(sb.buf) < 0) { + strbuf_addf(err, "could not delete refs directory: %s", + strerror(errno)); + ret = -1; + } + + strbuf_release(&sb); + return ret; +} + struct reftable_ref_iterator { struct ref_iterator base; struct reftable_ref_store *refs; @@ -356,8 +469,7 @@ static int reftable_ref_iterator_advance(struct ref_iterator *ref_iterator) */ if (!starts_with(iter->ref.refname, "refs/") && !(iter->flags & DO_FOR_EACH_INCLUDE_ROOT_REFS && - (is_pseudoref(&iter->refs->base, iter->ref.refname) || - is_headref(&iter->refs->base, iter->ref.refname)))) { + is_root_ref(iter->ref.refname))) { continue; } @@ -374,15 +486,17 @@ static int reftable_ref_iterator_advance(struct ref_iterator *ref_iterator) switch (iter->ref.value_type) { case REFTABLE_REF_VAL1: - oidread(&iter->oid, iter->ref.value.val1); + oidread(&iter->oid, iter->ref.value.val1, + the_repository->hash_algo); break; case REFTABLE_REF_VAL2: - oidread(&iter->oid, iter->ref.value.val2.value); + oidread(&iter->oid, iter->ref.value.val2.value, + the_repository->hash_algo); break; case REFTABLE_REF_SYMREF: if (!refs_resolve_ref_unsafe(&iter->refs->base, iter->ref.refname, RESOLVE_REF_READING, &iter->oid, &flags)) - oidclr(&iter->oid); + oidclr(&iter->oid, the_repository->hash_algo); break; default: BUG("unhandled reference value type %d", iter->ref.value_type); @@ -394,7 +508,7 @@ static int reftable_ref_iterator_advance(struct ref_iterator *ref_iterator) if (check_refname_format(iter->ref.refname, REFNAME_ALLOW_ONELEVEL)) { if (!refname_is_safe(iter->ref.refname)) die(_("refname is dangerous: %s"), iter->ref.refname); - oidclr(&iter->oid); + oidclr(&iter->oid, the_repository->hash_algo); flags |= REF_BAD_NAME | REF_ISBROKEN; } @@ -436,7 +550,8 @@ static int reftable_ref_iterator_peel(struct ref_iterator *ref_iterator, (struct reftable_ref_iterator *)ref_iterator; if (iter->ref.value_type == REFTABLE_REF_VAL2) { - oidread(peeled, iter->ref.value.val2.target_value); + oidread(peeled, iter->ref.value.val2.target_value, + the_repository->hash_algo); return 0; } @@ -464,7 +579,6 @@ static struct reftable_ref_iterator *ref_iterator_for_stack(struct reftable_ref_ const char *prefix, int flags) { - struct reftable_merged_table *merged_table; struct reftable_ref_iterator *iter; int ret; @@ -484,9 +598,8 @@ static struct reftable_ref_iterator *ref_iterator_for_stack(struct reftable_ref_ if (ret) goto done; - merged_table = reftable_stack_merged_table(stack); - - ret = reftable_merged_table_seek_ref(merged_table, &iter->iter, prefix); + reftable_stack_init_ref_iterator(stack, &iter->iter); + ret = reftable_iterator_seek_ref(&iter->iter, prefix); if (ret) goto done; @@ -581,16 +694,6 @@ static int reftable_be_read_symbolic_ref(struct ref_store *ref_store, return ret; } -/* - * Return the refname under which update was originally requested. - */ -static const char *original_update_refname(struct ref_update *update) -{ - while (update->parent_update) - update = update->parent_update; - return update->refname; -} - struct reftable_transaction_update { struct ref_update *update; struct object_id current_oid; @@ -829,7 +932,7 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, new_update = ref_transaction_add_update( transaction, "HEAD", u->flags | REF_LOG_ONLY | REF_NO_DEREF, - &u->new_oid, &u->old_oid, u->msg); + &u->new_oid, &u->old_oid, NULL, NULL, u->msg); string_list_insert(&affected_refnames, new_update->refname); } @@ -837,7 +940,7 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, ¤t_oid, &referent, &u->type); if (ret < 0) goto done; - if (ret > 0 && (!(u->flags & REF_HAVE_OLD) || is_null_oid(&u->old_oid))) { + if (ret > 0 && !ref_update_expects_existing_old_ref(u)) { /* * The reference does not exist, and we either have no * old object ID or expect the reference to not exist. @@ -856,7 +959,7 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, * There is no need to write the reference deletion * when the reference in question doesn't exist. */ - if (u->flags & REF_HAVE_NEW && !is_null_oid(&u->new_oid)) { + if ((u->flags & REF_HAVE_NEW) && !ref_update_has_null_new_value(u)) { ret = queue_transaction_update(refs, tx_data, u, ¤t_oid, err); if (ret) @@ -869,7 +972,7 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, /* The reference does not exist, but we expected it to. */ strbuf_addf(err, _("cannot lock ref '%s': " "unable to resolve reference '%s'"), - original_update_refname(u), u->refname); + ref_update_original_update_refname(u), u->refname); ret = -1; goto done; } @@ -907,8 +1010,11 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, * intertwined with the locking in files-backend.c. */ new_update = ref_transaction_add_update( - transaction, referent.buf, new_flags, - &u->new_oid, &u->old_oid, u->msg); + transaction, referent.buf, new_flags, + u->new_target ? NULL : &u->new_oid, + u->old_target ? NULL : &u->old_oid, + u->new_target, u->old_target, u->msg); + new_update->parent_update = u; /* @@ -938,20 +1044,35 @@ static int reftable_be_transaction_prepare(struct ref_store *ref_store, * individual refs. But the error messages match what the files * backend returns, which keeps our tests happy. */ - if (u->flags & REF_HAVE_OLD && !oideq(¤t_oid, &u->old_oid)) { + if (u->old_target) { + if (!(u->type & REF_ISSYMREF)) { + strbuf_addf(err, _("cannot lock ref '%s': " + "expected symref with target '%s': " + "but is a regular ref"), + ref_update_original_update_refname(u), + u->old_target); + ret = -1; + goto done; + } + + if (ref_update_check_old_target(referent.buf, u, err)) { + ret = -1; + goto done; + } + } else if ((u->flags & REF_HAVE_OLD) && !oideq(¤t_oid, &u->old_oid)) { if (is_null_oid(&u->old_oid)) strbuf_addf(err, _("cannot lock ref '%s': " - "reference already exists"), - original_update_refname(u)); + "reference already exists"), + ref_update_original_update_refname(u)); else if (is_null_oid(¤t_oid)) strbuf_addf(err, _("cannot lock ref '%s': " - "reference is missing but expected %s"), - original_update_refname(u), + "reference is missing but expected %s"), + ref_update_original_update_refname(u), oid_to_hex(&u->old_oid)); else strbuf_addf(err, _("cannot lock ref '%s': " - "is at %s but expected %s"), - original_update_refname(u), + "is at %s but expected %s"), + ref_update_original_update_refname(u), oid_to_hex(¤t_oid), oid_to_hex(&u->old_oid)); ret = -1; @@ -1017,13 +1138,17 @@ static int transaction_update_cmp(const void *a, const void *b) static int write_transaction_table(struct reftable_writer *writer, void *cb_data) { struct write_transaction_table_arg *arg = cb_data; - struct reftable_merged_table *mt = - reftable_stack_merged_table(arg->stack); uint64_t ts = reftable_stack_next_update_index(arg->stack); struct reftable_log_record *logs = NULL; + struct ident_split committer_ident = {0}; size_t logs_nr = 0, logs_alloc = 0, i; + const char *committer_info; int ret = 0; + committer_info = git_committer_info(0); + if (split_ident_line(&committer_ident, committer_info, strlen(committer_info))) + BUG("failed splitting committer info"); + QSORT(arg->updates, arg->updates_nr, transaction_update_cmp); reftable_writer_set_limits(writer, ts, ts); @@ -1043,10 +1168,14 @@ static int write_transaction_table(struct reftable_writer *writer, void *cb_data * - `core.logAllRefUpdates` tells us to create the reflog for * the given ref. */ - if (u->flags & REF_HAVE_NEW && !(u->type & REF_ISSYMREF) && is_null_oid(&u->new_oid)) { + if ((u->flags & REF_HAVE_NEW) && + !(u->type & REF_ISSYMREF) && + ref_update_has_null_new_value(u)) { struct reftable_log_record log = {0}; struct reftable_iterator it = {0}; + reftable_stack_init_log_iterator(arg->stack, &it); + /* * When deleting refs we also delete all reflog entries * with them. While it is not strictly required to @@ -1056,7 +1185,7 @@ static int write_transaction_table(struct reftable_writer *writer, void *cb_data * Unfortunately, we have no better way than to delete * all reflog entries one by one. */ - ret = reftable_merged_table_seek_log(mt, &it, u->refname); + ret = reftable_iterator_seek_log(&it, u->refname); while (ret == 0) { struct reftable_log_record *tombstone; @@ -1080,28 +1209,57 @@ static int write_transaction_table(struct reftable_writer *writer, void *cb_data if (ret) goto done; - } else if (u->flags & REF_HAVE_NEW && + } else if (!(u->flags & REF_SKIP_CREATE_REFLOG) && + (u->flags & REF_HAVE_NEW) && (u->flags & REF_FORCE_CREATE_REFLOG || should_write_log(&arg->refs->base, u->refname))) { struct reftable_log_record *log; + int create_reflog = 1; + + if (u->new_target) { + if (!refs_resolve_ref_unsafe(&arg->refs->base, u->new_target, + RESOLVE_REF_READING, &u->new_oid, NULL)) { + /* + * TODO: currently we skip creating reflogs for dangling + * symref updates. It would be nice to capture this as + * zero oid updates however. + */ + create_reflog = 0; + } + } - ALLOC_GROW(logs, logs_nr + 1, logs_alloc); - log = &logs[logs_nr++]; - memset(log, 0, sizeof(*log)); - - fill_reftable_log_record(log); - log->update_index = ts; - log->refname = xstrdup(u->refname); - memcpy(log->value.update.new_hash, u->new_oid.hash, GIT_MAX_RAWSZ); - memcpy(log->value.update.old_hash, tx_update->current_oid.hash, GIT_MAX_RAWSZ); - log->value.update.message = - xstrndup(u->msg, arg->refs->write_options.block_size / 2); + if (create_reflog) { + ALLOC_GROW(logs, logs_nr + 1, logs_alloc); + log = &logs[logs_nr++]; + memset(log, 0, sizeof(*log)); + + fill_reftable_log_record(log, &committer_ident); + log->update_index = ts; + log->refname = xstrdup(u->refname); + memcpy(log->value.update.new_hash, + u->new_oid.hash, GIT_MAX_RAWSZ); + memcpy(log->value.update.old_hash, + tx_update->current_oid.hash, GIT_MAX_RAWSZ); + log->value.update.message = + xstrndup(u->msg, arg->refs->write_options.block_size / 2); + } } if (u->flags & REF_LOG_ONLY) continue; - if (u->flags & REF_HAVE_NEW && is_null_oid(&u->new_oid)) { + if (u->new_target) { + struct reftable_ref_record ref = { + .refname = (char *)u->refname, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = (char *)u->new_target, + .update_index = ts, + }; + + ret = reftable_writer_add_ref(writer, &ref); + if (ret < 0) + goto done; + } else if ((u->flags & REF_HAVE_NEW) && ref_update_has_null_new_value(u)) { struct reftable_ref_record ref = { .refname = (char *)u->refname, .update_index = ts, @@ -1119,7 +1277,7 @@ static int write_transaction_table(struct reftable_writer *writer, void *cb_data ref.refname = (char *)u->refname; ref.update_index = ts; - peel_error = peel_object(&u->new_oid, &peeled); + peel_error = peel_object(arg->refs->base.repo, &u->new_oid, &peeled); if (!peel_error) { ref.value_type = REFTABLE_REF_VAL2; memcpy(ref.value.val2.target_value, peeled.hash, GIT_MAX_RAWSZ); @@ -1227,96 +1385,12 @@ out: struct write_create_symref_arg { struct reftable_ref_store *refs; struct reftable_stack *stack; + struct strbuf *err; const char *refname; const char *target; const char *logmsg; }; -static int write_create_symref_table(struct reftable_writer *writer, void *cb_data) -{ - struct write_create_symref_arg *create = cb_data; - uint64_t ts = reftable_stack_next_update_index(create->stack); - struct reftable_ref_record ref = { - .refname = (char *)create->refname, - .value_type = REFTABLE_REF_SYMREF, - .value.symref = (char *)create->target, - .update_index = ts, - }; - struct reftable_log_record log = {0}; - struct object_id new_oid; - struct object_id old_oid; - int ret; - - reftable_writer_set_limits(writer, ts, ts); - - ret = reftable_writer_add_ref(writer, &ref); - if (ret) - return ret; - - /* - * Note that it is important to try and resolve the reference before we - * write the log entry. This is because `should_write_log()` will munge - * `core.logAllRefUpdates`, which is undesirable when we create a new - * repository because it would be written into the config. As HEAD will - * not resolve for new repositories this ordering will ensure that this - * never happens. - */ - if (!create->logmsg || - !refs_resolve_ref_unsafe(&create->refs->base, create->target, - RESOLVE_REF_READING, &new_oid, NULL) || - !should_write_log(&create->refs->base, create->refname)) - return 0; - - fill_reftable_log_record(&log); - log.refname = xstrdup(create->refname); - log.update_index = ts; - log.value.update.message = xstrndup(create->logmsg, - create->refs->write_options.block_size / 2); - memcpy(log.value.update.new_hash, new_oid.hash, GIT_MAX_RAWSZ); - if (refs_resolve_ref_unsafe(&create->refs->base, create->refname, - RESOLVE_REF_READING, &old_oid, NULL)) - memcpy(log.value.update.old_hash, old_oid.hash, GIT_MAX_RAWSZ); - - ret = reftable_writer_add_log(writer, &log); - reftable_log_record_release(&log); - return ret; -} - -static int reftable_be_create_symref(struct ref_store *ref_store, - const char *refname, - const char *target, - const char *logmsg) -{ - struct reftable_ref_store *refs = - reftable_be_downcast(ref_store, REF_STORE_WRITE, "create_symref"); - struct reftable_stack *stack = stack_for(refs, refname, &refname); - struct write_create_symref_arg arg = { - .refs = refs, - .stack = stack, - .refname = refname, - .target = target, - .logmsg = logmsg, - }; - int ret; - - ret = refs->err; - if (ret < 0) - goto done; - - ret = reftable_stack_reload(stack); - if (ret) - goto done; - - ret = reftable_stack_add(stack, &write_create_symref_table, &arg); - -done: - assert(ret != REFTABLE_API_ERROR); - if (ret) - error("unable to write symref for %s: %s", refname, - reftable_error_str(ret)); - return ret; -} - struct write_copy_arg { struct reftable_ref_store *refs; struct reftable_stack *stack; @@ -1330,15 +1404,20 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) { struct write_copy_arg *arg = cb_data; uint64_t deletion_ts, creation_ts; - struct reftable_merged_table *mt = reftable_stack_merged_table(arg->stack); struct reftable_ref_record old_ref = {0}, refs[2] = {0}; struct reftable_log_record old_log = {0}, *logs = NULL; struct reftable_iterator it = {0}; struct string_list skip = STRING_LIST_INIT_NODUP; + struct ident_split committer_ident = {0}; struct strbuf errbuf = STRBUF_INIT; size_t logs_nr = 0, logs_alloc = 0, i; + const char *committer_info; int ret; + committer_info = git_committer_info(0); + if (split_ident_line(&committer_ident, committer_info, strlen(committer_info))) + BUG("failed splitting committer info"); + if (reftable_stack_read_ref(arg->stack, arg->oldname, &old_ref)) { ret = error(_("refname %s not found"), arg->oldname); goto done; @@ -1361,7 +1440,8 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) /* * Verify that the new refname is available. */ - string_list_insert(&skip, arg->oldname); + if (arg->delete_old) + string_list_insert(&skip, arg->oldname); ret = refs_verify_refname_available(&arg->refs->base, arg->newname, NULL, &skip, &errbuf); if (ret < 0) { @@ -1387,10 +1467,10 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) * old reference. */ refs[0] = old_ref; - refs[0].refname = (char *)arg->newname; + refs[0].refname = xstrdup(arg->newname); refs[0].update_index = creation_ts; if (arg->delete_old) { - refs[1].refname = (char *)arg->oldname; + refs[1].refname = xstrdup(arg->oldname); refs[1].value_type = REFTABLE_REF_DELETION; refs[1].update_index = deletion_ts; } @@ -1412,8 +1492,8 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) ALLOC_GROW(logs, logs_nr + 1, logs_alloc); memset(&logs[logs_nr], 0, sizeof(logs[logs_nr])); - fill_reftable_log_record(&logs[logs_nr]); - logs[logs_nr].refname = (char *)arg->newname; + fill_reftable_log_record(&logs[logs_nr], &committer_ident); + logs[logs_nr].refname = xstrdup(arg->newname); logs[logs_nr].update_index = deletion_ts; logs[logs_nr].value.update.message = xstrndup(arg->logmsg, arg->refs->write_options.block_size / 2); @@ -1434,7 +1514,13 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) if (append_head_reflog) { ALLOC_GROW(logs, logs_nr + 1, logs_alloc); logs[logs_nr] = logs[logs_nr - 1]; - logs[logs_nr].refname = "HEAD"; + logs[logs_nr].refname = xstrdup("HEAD"); + logs[logs_nr].value.update.name = + xstrdup(logs[logs_nr].value.update.name); + logs[logs_nr].value.update.email = + xstrdup(logs[logs_nr].value.update.email); + logs[logs_nr].value.update.message = + xstrdup(logs[logs_nr].value.update.message); logs_nr++; } } @@ -1444,8 +1530,8 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) */ ALLOC_GROW(logs, logs_nr + 1, logs_alloc); memset(&logs[logs_nr], 0, sizeof(logs[logs_nr])); - fill_reftable_log_record(&logs[logs_nr]); - logs[logs_nr].refname = (char *)arg->newname; + fill_reftable_log_record(&logs[logs_nr], &committer_ident); + logs[logs_nr].refname = xstrdup(arg->newname); logs[logs_nr].update_index = creation_ts; logs[logs_nr].value.update.message = xstrndup(arg->logmsg, arg->refs->write_options.block_size / 2); @@ -1457,7 +1543,8 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) * copy over all log entries from the old reflog. Last but not least, * when renaming we also have to delete all the old reflog entries. */ - ret = reftable_merged_table_seek_log(mt, &it, arg->oldname); + reftable_stack_init_log_iterator(arg->stack, &it); + ret = reftable_iterator_seek_log(&it, arg->oldname); if (ret < 0) goto done; @@ -1477,7 +1564,7 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) */ ALLOC_GROW(logs, logs_nr + 1, logs_alloc); logs[logs_nr] = old_log; - logs[logs_nr].refname = (char *)arg->newname; + logs[logs_nr].refname = xstrdup(arg->newname); logs_nr++; /* @@ -1486,7 +1573,7 @@ static int write_copy_table(struct reftable_writer *writer, void *cb_data) if (arg->delete_old) { ALLOC_GROW(logs, logs_nr + 1, logs_alloc); memset(&logs[logs_nr], 0, sizeof(logs[logs_nr])); - logs[logs_nr].refname = (char *)arg->oldname; + logs[logs_nr].refname = xstrdup(arg->oldname); logs[logs_nr].value_type = REFTABLE_LOG_DELETION; logs[logs_nr].update_index = old_log.update_index; logs_nr++; @@ -1509,13 +1596,11 @@ done: reftable_iterator_destroy(&it); string_list_clear(&skip, 0); strbuf_release(&errbuf); - for (i = 0; i < logs_nr; i++) { - if (!strcmp(logs[i].refname, "HEAD")) - continue; - logs[i].refname = NULL; + for (i = 0; i < logs_nr; i++) reftable_log_record_release(&logs[i]); - } free(logs); + for (i = 0; i < ARRAY_SIZE(refs); i++) + reftable_ref_record_release(&refs[i]); reftable_ref_record_release(&old_ref); reftable_log_record_release(&old_log); return ret; @@ -1663,7 +1748,6 @@ static struct ref_iterator_vtable reftable_reflog_iterator_vtable = { static struct reftable_reflog_iterator *reflog_iterator_for_stack(struct reftable_ref_store *refs, struct reftable_stack *stack) { - struct reftable_merged_table *merged_table; struct reftable_reflog_iterator *iter; int ret; @@ -1680,9 +1764,8 @@ static struct reftable_reflog_iterator *reflog_iterator_for_stack(struct reftabl if (ret < 0) goto done; - merged_table = reftable_stack_merged_table(stack); - - ret = reftable_merged_table_seek_log(merged_table, &iter->iter, ""); + reftable_stack_init_log_iterator(stack, &iter->iter); + ret = reftable_iterator_seek_log(&iter->iter, ""); if (ret < 0) goto done; @@ -1714,8 +1797,8 @@ static int yield_log_record(struct reftable_log_record *log, struct object_id old_oid, new_oid; const char *full_committer; - oidread(&old_oid, log->value.update.old_hash); - oidread(&new_oid, log->value.update.new_hash); + oidread(&old_oid, log->value.update.old_hash, the_repository->hash_algo); + oidread(&new_oid, log->value.update.new_hash, the_repository->hash_algo); /* * When both the old object ID and the new object ID are null @@ -1740,7 +1823,6 @@ static int reftable_be_for_each_reflog_ent_reverse(struct ref_store *ref_store, struct reftable_ref_store *refs = reftable_be_downcast(ref_store, REF_STORE_READ, "for_each_reflog_ent_reverse"); struct reftable_stack *stack = stack_for(refs, refname, &refname); - struct reftable_merged_table *mt = NULL; struct reftable_log_record log = {0}; struct reftable_iterator it = {0}; int ret; @@ -1748,8 +1830,8 @@ static int reftable_be_for_each_reflog_ent_reverse(struct ref_store *ref_store, if (refs->err < 0) return refs->err; - mt = reftable_stack_merged_table(stack); - ret = reftable_merged_table_seek_log(mt, &it, refname); + reftable_stack_init_log_iterator(stack, &it); + ret = reftable_iterator_seek_log(&it, refname); while (!ret) { ret = reftable_iterator_next_log(&it, &log); if (ret < 0) @@ -1777,7 +1859,6 @@ static int reftable_be_for_each_reflog_ent(struct ref_store *ref_store, struct reftable_ref_store *refs = reftable_be_downcast(ref_store, REF_STORE_READ, "for_each_reflog_ent"); struct reftable_stack *stack = stack_for(refs, refname, &refname); - struct reftable_merged_table *mt = NULL; struct reftable_log_record *logs = NULL; struct reftable_iterator it = {0}; size_t logs_alloc = 0, logs_nr = 0, i; @@ -1786,8 +1867,8 @@ static int reftable_be_for_each_reflog_ent(struct ref_store *ref_store, if (refs->err < 0) return refs->err; - mt = reftable_stack_merged_table(stack); - ret = reftable_merged_table_seek_log(mt, &it, refname); + reftable_stack_init_log_iterator(stack, &it); + ret = reftable_iterator_seek_log(&it, refname); while (!ret) { struct reftable_log_record log = {0}; @@ -1824,7 +1905,6 @@ static int reftable_be_reflog_exists(struct ref_store *ref_store, struct reftable_ref_store *refs = reftable_be_downcast(ref_store, REF_STORE_READ, "reflog_exists"); struct reftable_stack *stack = stack_for(refs, refname, &refname); - struct reftable_merged_table *mt = reftable_stack_merged_table(stack); struct reftable_log_record log = {0}; struct reftable_iterator it = {0}; int ret; @@ -1837,7 +1917,8 @@ static int reftable_be_reflog_exists(struct ref_store *ref_store, if (ret < 0) goto done; - ret = reftable_merged_table_seek_log(mt, &it, refname); + reftable_stack_init_log_iterator(stack, &it); + ret = reftable_iterator_seek_log(&it, refname); if (ret < 0) goto done; @@ -1935,8 +2016,6 @@ struct write_reflog_delete_arg { static int write_reflog_delete_table(struct reftable_writer *writer, void *cb_data) { struct write_reflog_delete_arg *arg = cb_data; - struct reftable_merged_table *mt = - reftable_stack_merged_table(arg->stack); struct reftable_log_record log = {0}, tombstone = {0}; struct reftable_iterator it = {0}; uint64_t ts = reftable_stack_next_update_index(arg->stack); @@ -1944,12 +2023,14 @@ static int write_reflog_delete_table(struct reftable_writer *writer, void *cb_da reftable_writer_set_limits(writer, ts, ts); + reftable_stack_init_log_iterator(arg->stack, &it); + /* * In order to delete a table we need to delete all reflog entries one * by one. This is inefficient, but the reftable format does not have a * better marker right now. */ - ret = reftable_merged_table_seek_log(mt, &it, arg->refname); + ret = reftable_iterator_seek_log(&it, arg->refname); while (ret == 0) { ret = reftable_iterator_next_log(&it, &log); if (ret < 0) @@ -1993,6 +2074,7 @@ static int reftable_be_delete_reflog(struct ref_store *ref_store, } struct reflog_expiry_arg { + struct reftable_ref_store *refs; struct reftable_stack *stack; struct reftable_log_record *records; struct object_id update_oid; @@ -2021,7 +2103,7 @@ static int write_reflog_expiry_table(struct reftable_writer *writer, void *cb_da ref.refname = (char *)arg->refname; ref.update_index = ts; - if (!peel_object(&arg->update_oid, &peeled)) { + if (!peel_object(arg->refs->base.repo, &arg->update_oid, &peeled)) { ref.value_type = REFTABLE_REF_VAL2; memcpy(ref.value.val2.target_value, peeled.hash, GIT_MAX_RAWSZ); memcpy(ref.value.val2.value, arg->update_oid.hash, GIT_MAX_RAWSZ); @@ -2085,7 +2167,6 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, struct reftable_ref_store *refs = reftable_be_downcast(ref_store, REF_STORE_WRITE, "reflog_expire"); struct reftable_stack *stack = stack_for(refs, refname, &refname); - struct reftable_merged_table *mt = reftable_stack_merged_table(stack); struct reftable_log_record *logs = NULL; struct reftable_log_record *rewritten = NULL; struct reftable_ref_record ref_record = {0}; @@ -2104,7 +2185,9 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, if (ret < 0) goto done; - ret = reftable_merged_table_seek_log(mt, &it, refname); + reftable_stack_init_log_iterator(stack, &it); + + ret = reftable_iterator_seek_log(&it, refname); if (ret < 0) goto done; @@ -2116,7 +2199,8 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, if (ret < 0) goto done; if (reftable_ref_record_val1(&ref_record)) - oidread(&oid, reftable_ref_record_val1(&ref_record)); + oidread(&oid, reftable_ref_record_val1(&ref_record), + the_repository->hash_algo); prepare_fn(refname, &oid, policy_cb_data); while (1) { @@ -2131,8 +2215,10 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, break; } - oidread(&old_oid, log.value.update.old_hash); - oidread(&new_oid, log.value.update.new_hash); + oidread(&old_oid, log.value.update.old_hash, + the_repository->hash_algo); + oidread(&new_oid, log.value.update.new_hash, + the_repository->hash_algo); /* * Skip over the reflog existence marker. We will add it back @@ -2163,8 +2249,10 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, struct object_id old_oid, new_oid; *dest = logs[i]; - oidread(&old_oid, logs[i].value.update.old_hash); - oidread(&new_oid, logs[i].value.update.new_hash); + oidread(&old_oid, logs[i].value.update.old_hash, + the_repository->hash_algo); + oidread(&new_oid, logs[i].value.update.new_hash, + the_repository->hash_algo); if (should_prune_fn(&old_oid, &new_oid, logs[i].value.update.email, (timestamp_t)logs[i].value.update.time, @@ -2181,8 +2269,9 @@ static int reftable_be_reflog_expire(struct ref_store *ref_store, if (flags & EXPIRE_REFLOGS_UPDATE_REF && last_hash && reftable_ref_record_val1(&ref_record)) - oidread(&arg.update_oid, last_hash); + oidread(&arg.update_oid, last_hash, the_repository->hash_algo); + arg.refs = refs; arg.records = rewritten; arg.len = logs_nr; arg.stack = stack, @@ -2217,14 +2306,16 @@ done: struct ref_storage_be refs_be_reftable = { .name = "reftable", .init = reftable_be_init, - .init_db = reftable_be_init_db, + .release = reftable_be_release, + .create_on_disk = reftable_be_create_on_disk, + .remove_on_disk = reftable_be_remove_on_disk, + .transaction_prepare = reftable_be_transaction_prepare, .transaction_finish = reftable_be_transaction_finish, .transaction_abort = reftable_be_transaction_abort, .initial_transaction_commit = reftable_be_initial_transaction_commit, .pack_refs = reftable_be_pack_refs, - .create_symref = reftable_be_create_symref, .rename_ref = reftable_be_rename_ref, .copy_ref = reftable_be_copy_ref, |