From 66996bea9b6423d8ba9d676e2325323e3179975f Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:40 -0800 Subject: [PATCH 1/8] fetch: lowercase error messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Documentation/CodingGuidelines says “do not end error messages with a full stop” and “do not capitalize the first word”. Clean up existing messages, some of which we will be touching in later steps in the series, that deviate from these rules in this file, as a preparation for the main part of the topic. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- builtin/fetch.c | 50 +++++++++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 24 deletions(-) diff --git a/builtin/fetch.c b/builtin/fetch.c index f7abbc31ff1414..16b98523ceeea0 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -552,7 +552,7 @@ static struct ref *get_ref_map(struct remote *remote, for (i = 0; i < fetch_refspec->nr; i++) get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1); } else if (refmap.nr) { - die("--refmap option is only meaningful with command-line refspec(s)."); + die("--refmap option is only meaningful with command-line refspec(s)"); } else { /* Use the defaults */ struct branch *branch = branch_get(NULL); @@ -583,7 +583,7 @@ static struct ref *get_ref_map(struct remote *remote, } else if (!prefetch) { ref_map = get_remote_ref(remote_refs, "HEAD"); if (!ref_map) - die(_("Couldn't find remote ref HEAD")); + die(_("couldn't find remote ref HEAD")); ref_map->fetch_head_status = FETCH_HEAD_MERGE; tail = &ref_map->next; } @@ -1067,13 +1067,13 @@ static void close_fetch_head(struct fetch_head *fetch_head) } static const char warn_show_forced_updates[] = -N_("Fetch normally indicates which branches had a forced update,\n" - "but that check has been disabled. To re-enable, use '--show-forced-updates'\n" - "flag or run 'git config fetch.showForcedUpdates true'."); +N_("fetch normally indicates which branches had a forced update,\n" + "but that check has been disabled; to re-enable, use '--show-forced-updates'\n" + "flag or run 'git config fetch.showForcedUpdates true'"); static const char warn_time_show_forced_updates[] = -N_("It took %.2f seconds to check forced updates. You can use\n" +N_("it took %.2f seconds to check forced updates; you can use\n" "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n" - " to avoid this check.\n"); + "to avoid this check\n"); static int store_updated_refs(const char *raw_url, const char *remote_name, int connectivity_checked, struct ref *ref_map) @@ -1395,8 +1395,9 @@ static void check_not_current_branch(struct ref *ref_map) for (; ref_map; ref_map = ref_map->next) if (ref_map->peer_ref && !strcmp(current_branch->refname, ref_map->peer_ref->name)) - die(_("Refusing to fetch into current branch %s " - "of non-bare repository"), current_branch->refname); + die(_("refusing to fetch into current branch %s " + "of non-bare repository"), + current_branch->refname); } static int truncate_fetch_head(void) @@ -1414,10 +1415,10 @@ static void set_option(struct transport *transport, const char *name, const char { int r = transport_set_option(transport, name, value); if (r < 0) - die(_("Option \"%s\" value \"%s\" is not valid for %s"), + die(_("option \"%s\" value \"%s\" is not valid for %s"), name, value, transport->url); if (r > 0) - warning(_("Option \"%s\" is ignored for %s\n"), + warning(_("option \"%s\" is ignored for %s\n"), name, transport->url); } @@ -1451,7 +1452,7 @@ static void add_negotiation_tips(struct git_transport_options *smart_options) old_nr = oids->nr; for_each_glob_ref(add_oid, s, oids); if (old_nr == oids->nr) - warning("Ignoring --negotiation-tip=%s because it does not match any refs", + warning("ignoring --negotiation-tip=%s because it does not match any refs", s); } smart_options->negotiation_tips = oids; @@ -1489,7 +1490,7 @@ static struct transport *prepare_transport(struct remote *remote, int deepen) if (transport->smart_options) add_negotiation_tips(transport->smart_options); else - warning("Ignoring --negotiation-tip because the protocol does not support it."); + warning("ignoring --negotiation-tip because the protocol does not support it"); } return transport; } @@ -1651,8 +1652,8 @@ static int do_fetch(struct transport *transport, else warning(_("unknown branch type")); } else { - warning(_("no source branch found.\n" - "you need to specify exactly one branch with the --set-upstream option.")); + warning(_("no source branch found;\n" + "you need to specify exactly one branch with the --set-upstream option")); } } skip: @@ -1790,7 +1791,7 @@ static int fetch_failed_to_start(struct strbuf *out, void *cb, void *task_cb) struct parallel_fetch_state *state = cb; const char *remote = task_cb; - state->result = error(_("Could not fetch %s"), remote); + state->result = error(_("could not fetch %s"), remote); return 0; } @@ -1845,7 +1846,7 @@ static int fetch_multiple(struct string_list *list, int max_children) if (verbosity >= 0) printf(_("Fetching %s\n"), name); if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { - error(_("Could not fetch %s"), name); + error(_("could not fetch %s"), name); result = 1; } strvec_pop(&argv); @@ -1906,8 +1907,8 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, int remote_via_config = remote_is_configured(remote, 0); if (!remote) - die(_("No remote repository specified. Please, specify either a URL or a\n" - "remote name from which new revisions should be fetched.")); + die(_("no remote repository specified; please specify either a URL or a\n" + "remote name from which new revisions should be fetched")); gtransport = prepare_transport(remote, 1); @@ -1942,7 +1943,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, if (!strcmp(argv[i], "tag")) { i++; if (i >= argc) - die(_("You need to specify a tag name.")); + die(_("you need to specify a tag name")); refspec_appendf(&rs, "refs/tags/%s:refs/tags/%s", argv[i], argv[i]); @@ -2010,7 +2011,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) if (deepen_relative) { if (deepen_relative < 0) - die(_("Negative depth in --deepen is not supported")); + die(_("negative depth in --deepen is not supported")); if (depth) die(_("--deepen and --depth are mutually exclusive")); depth = xstrfmt("%d", deepen_relative); @@ -2047,14 +2048,15 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) /* All arguments are assumed to be remotes or groups */ for (i = 0; i < argc; i++) if (!add_remote_or_group(argv[i], &list)) - die(_("No such remote or remote group: %s"), argv[i]); + die(_("no such remote or remote group: %s"), + argv[i]); } else { /* Single remote or group */ (void) add_remote_or_group(argv[0], &list); if (list.nr > 1) { /* More than one remote */ if (argc > 1) - die(_("Fetching a group and specifying refspecs does not make sense")); + die(_("fetching a group and specifying refspecs does not make sense")); } else { /* Zero or one remotes */ remote = remote_get(argv[0]); @@ -2075,7 +2077,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) if (gtransport->smart_options) { gtransport->smart_options->acked_commits = &acked_commits; } else { - warning(_("Protocol does not support --negotiate-only, exiting.")); + warning(_("protocol does not support --negotiate-only, exiting")); return 1; } if (server_options.nr) From c25edee9a5dd9481e00ee5d2d40d4b9f8231993f Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:41 -0800 Subject: [PATCH 2/8] receive-pack: lowercase error messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Documentation/CodingGuidelines says “do not end error messages with a full stop” and “do not capitalize the first word”. Clean up existing messages, some of which we will be touching in later steps in the series, that deviate from these rules in this file, as a preparation for the main part of the topic. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- builtin/receive-pack.c | 10 +++++----- t/t5504-fetch-receive-strict.sh | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 49b846d960522a..ddda27c184f709 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -175,7 +175,7 @@ static int receive_pack_config(const char *var, const char *value, void *cb) strbuf_addf(&fsck_msg_types, "%c%s=%s", fsck_msg_types.len ? ',' : '=', var, value); else - warning("Skipping unknown msg id '%s'", var); + warning("skipping unknown msg id '%s'", var); return 0; } @@ -1589,9 +1589,9 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (!parse_object(the_repository, old_oid)) { old_oid = NULL; if (ref_exists(name)) { - rp_warning("Allowing deletion of corrupt ref."); + rp_warning("allowing deletion of corrupt ref"); } else { - rp_warning("Deleting a non-existent ref."); + rp_warning("deleting a non-existent ref"); cmd->did_not_exist = 1; } } @@ -2490,9 +2490,9 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); if (argc > 1) - usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); + usage_msg_opt(_("too many arguments"), receive_pack_usage, options); if (argc == 0) - usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); + usage_msg_opt(_("you must specify a directory"), receive_pack_usage, options); service_dir = argv[0]; diff --git a/t/t5504-fetch-receive-strict.sh b/t/t5504-fetch-receive-strict.sh index 6e5a9c20e7fc03..b0b795aca97f86 100755 --- a/t/t5504-fetch-receive-strict.sh +++ b/t/t5504-fetch-receive-strict.sh @@ -292,7 +292,7 @@ test_expect_success 'push with receive.fsck.missingEmail=warn' ' receive.fsck.missingEmail warn && git push --porcelain dst bogus >act 2>&1 && grep "missingEmail" act && - test_i18ngrep "Skipping unknown msg id.*whatever" act && + test_i18ngrep "skipping unknown msg id.*whatever" act && git --git-dir=dst/.git branch -D bogus && git --git-dir=dst/.git config --add \ receive.fsck.missingEmail ignore && From 7435e7e2e7645124679eedbfb1443b8408f29219 Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:42 -0800 Subject: [PATCH 3/8] branch: lowercase error messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Documentation/CodingGuidelines says “do not end error messages with a full stop” and “do not capitalize the first word”. Clean up existing messages, some of which we will be touching in later steps in the series, that deviate from these rules in this file, as a preparation for the main part of the topic. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- branch.c | 20 ++++++++++---------- t/t2018-checkout-branch.sh | 2 +- t/t3200-branch.sh | 4 ++-- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/branch.c b/branch.c index 07a46430b3846f..85777b939b5af2 100644 --- a/branch.c +++ b/branch.c @@ -64,7 +64,7 @@ int install_branch_config(int flag, const char *local, const char *origin, const if (skip_prefix(remote, "refs/heads/", &shortname) && !strcmp(local, shortname) && !origin) { - warning(_("Not setting branch %s as its own upstream."), + warning(_("not setting branch %s as its own upstream"), local); return 0; } @@ -116,7 +116,7 @@ int install_branch_config(int flag, const char *local, const char *origin, const out_err: strbuf_release(&key); - error(_("Unable to write upstream branch configuration")); + error(_("unable to write upstream branch configuration")); advise(_(tracking_advice), origin ? origin : "", @@ -153,7 +153,7 @@ static void setup_tracking(const char *new_ref, const char *orig_ref, } if (tracking.matches > 1) - die(_("Not tracking: ambiguous information for ref %s"), + die(_("not tracking: ambiguous information for ref %s"), orig_ref); if (install_branch_config(config_flags, new_ref, tracking.remote, @@ -186,7 +186,7 @@ int read_branch_desc(struct strbuf *buf, const char *branch_name) int validate_branchname(const char *name, struct strbuf *ref) { if (strbuf_check_branch_ref(ref, name)) - die(_("'%s' is not a valid branch name."), name); + die(_("'%s' is not a valid branch name"), name); return ref_exists(ref->buf); } @@ -205,12 +205,12 @@ int validate_new_branchname(const char *name, struct strbuf *ref, int force) return 0; if (!force) - die(_("A branch named '%s' already exists."), + die(_("a branch named '%s' already exists"), ref->buf + strlen("refs/heads/")); head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); if (!is_bare_repository() && head && !strcmp(head, ref->buf)) - die(_("Cannot force update the current branch.")); + die(_("cannot force update the current branch")); return 1; } @@ -230,7 +230,7 @@ static int validate_remote_tracking_branch(char *ref) } static const char upstream_not_branch[] = -N_("Cannot setup tracking information; starting point '%s' is not a branch."); +N_("cannot set up tracking information; starting point '%s' is not a branch"); static const char upstream_missing[] = N_("the requested upstream branch '%s' does not exist"); static const char upstream_advice[] = @@ -278,7 +278,7 @@ void create_branch(struct repository *r, } die(_(upstream_missing), start_name); } - die(_("Not a valid object name: '%s'."), start_name); + die(_("not a valid object name: '%s'"), start_name); } switch (dwim_ref(start_name, strlen(start_name), &oid, &real_ref, 0)) { @@ -298,12 +298,12 @@ void create_branch(struct repository *r, } break; default: - die(_("Ambiguous object name: '%s'."), start_name); + die(_("ambiguous object name: '%s'"), start_name); break; } if ((commit = lookup_commit_reference(r, &oid)) == NULL) - die(_("Not a valid branch point: '%s'."), start_name); + die(_("not a valid branch point: '%s'"), start_name); oidcpy(&oid, &commit->object.oid); if (reflog) diff --git a/t/t2018-checkout-branch.sh b/t/t2018-checkout-branch.sh index 93be1c0eae5ead..3e93506c0455c0 100755 --- a/t/t2018-checkout-branch.sh +++ b/t/t2018-checkout-branch.sh @@ -148,7 +148,7 @@ test_expect_success 'checkout -b to an existing branch fails' ' test_expect_success 'checkout -b to @{-1} fails with the right branch name' ' git checkout branch1 && git checkout branch2 && - echo >expect "fatal: A branch named '\''branch1'\'' already exists." && + echo >expect "fatal: a branch named '\''branch1'\'' already exists" && test_must_fail git checkout -b @{-1} 2>actual && test_cmp expect actual ' diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index 8c5c1ccf330043..e35e119beeabc5 100755 --- a/t/t3200-branch.sh +++ b/t/t3200-branch.sh @@ -888,7 +888,7 @@ test_expect_success '--set-upstream-to fails on a missing src branch' ' ' test_expect_success '--set-upstream-to fails on a non-ref' ' - echo "fatal: Cannot setup tracking information; starting point '"'"'HEAD^{}'"'"' is not a branch." >expect && + echo "fatal: cannot set up tracking information; starting point '"'"'HEAD^{}'"'"' is not a branch" >expect && test_must_fail git branch --set-upstream-to HEAD^{} 2>err && test_cmp expect err ' @@ -975,7 +975,7 @@ test_expect_success 'disabled option --set-upstream fails' ' test_expect_success '--set-upstream-to notices an error to set branch as own upstream' ' git branch --set-upstream-to refs/heads/my13 my13 2>actual && cat >expect <<-\EOF && - warning: Not setting branch my13 as its own upstream. + warning: not setting branch my13 as its own upstream EOF test_expect_code 1 git config branch.my13.remote && test_expect_code 1 git config branch.my13.merge && From c8dd491fa5b57ecfd9ef33ae5291eb2a9402cd59 Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:43 -0800 Subject: [PATCH 4/8] worktree: simplify find_shared_symref() memory ownership model MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Storing the worktrees list in a static variable meant that find_shared_symref() had to rebuild the list on each call (which is inefficient when the call site is in a loop), and also that each call invalidated the pointer returned by the previous call (which is confusing). Instead, make it the caller’s responsibility to pass in the worktrees list and manage its lifetime. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- branch.c | 14 ++++++---- builtin/branch.c | 7 ++++- builtin/notes.c | 6 +++- builtin/receive-pack.c | 63 +++++++++++++++++++++++++++--------------- worktree.c | 8 ++---- worktree.h | 5 ++-- 6 files changed, 65 insertions(+), 38 deletions(-) diff --git a/branch.c b/branch.c index 85777b939b5af2..c66b222abd4fbf 100644 --- a/branch.c +++ b/branch.c @@ -357,14 +357,16 @@ void remove_branch_state(struct repository *r, int verbose) void die_if_checked_out(const char *branch, int ignore_current_worktree) { + struct worktree **worktrees = get_worktrees(); const struct worktree *wt; - wt = find_shared_symref("HEAD", branch); - if (!wt || (ignore_current_worktree && wt->is_current)) - return; - skip_prefix(branch, "refs/heads/", &branch); - die(_("'%s' is already checked out at '%s'"), - branch, wt->path); + wt = find_shared_symref(worktrees, "HEAD", branch); + if (wt && (!ignore_current_worktree || !wt->is_current)) { + skip_prefix(branch, "refs/heads/", &branch); + die(_("'%s' is already checked out at '%s'"), branch, wt->path); + } + + free_worktrees(worktrees); } int replace_each_worktree_head_symref(const char *oldref, const char *newref, diff --git a/builtin/branch.c b/builtin/branch.c index 81b5c111cb7b4b..6c8b0fcc11fbca 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -192,6 +192,7 @@ static void delete_branch_config(const char *branchname) static int delete_branches(int argc, const char **argv, int force, int kinds, int quiet) { + struct worktree **worktrees; struct commit *head_rev = NULL; struct object_id oid; char *name = NULL; @@ -228,6 +229,9 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, if (!head_rev) die(_("Couldn't look up commit object for HEAD")); } + + worktrees = get_worktrees(); + for (i = 0; i < argc; i++, strbuf_reset(&bname)) { char *target = NULL; int flags = 0; @@ -238,7 +242,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, if (kinds == FILTER_REFS_BRANCHES) { const struct worktree *wt = - find_shared_symref("HEAD", name); + find_shared_symref(worktrees, "HEAD", name); if (wt) { error(_("Cannot delete branch '%s' " "checked out at '%s'"), @@ -299,6 +303,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, free(name); strbuf_release(&bname); + free_worktrees(worktrees); return ret; } diff --git a/builtin/notes.c b/builtin/notes.c index 71c59583a17f8d..7f60408dbb6ab9 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -861,15 +861,19 @@ static int merge(int argc, const char **argv, const char *prefix) update_ref(msg.buf, default_notes_ref(), &result_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); else { /* Merge has unresolved conflicts */ + struct worktree **worktrees; const struct worktree *wt; /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ update_ref(msg.buf, "NOTES_MERGE_PARTIAL", &result_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ - wt = find_shared_symref("NOTES_MERGE_REF", default_notes_ref()); + worktrees = get_worktrees(); + wt = find_shared_symref(worktrees, "NOTES_MERGE_REF", + default_notes_ref()); if (wt) die(_("a notes merge into %s is already in-progress at %s"), default_notes_ref(), wt->path); + free_worktrees(worktrees); if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) die(_("failed to store link to current notes ref (%s)"), default_notes_ref()); diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index ddda27c184f709..525b021ec04bef 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -1486,12 +1486,17 @@ static const char *update(struct command *cmd, struct shallow_info *si) struct object_id *old_oid = &cmd->old_oid; struct object_id *new_oid = &cmd->new_oid; int do_update_worktree = 0; - const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name); + struct worktree **worktrees = get_worktrees(); + const struct worktree *worktree = + is_bare_repository() ? + NULL : + find_shared_symref(worktrees, "HEAD", name); /* only refs/... are allowed */ if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { rp_error("refusing to create funny ref '%s' remotely", name); - return "funny refname"; + ret = "funny refname"; + goto out; } strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); @@ -1510,7 +1515,8 @@ static const char *update(struct command *cmd, struct shallow_info *si) rp_error("refusing to update checked out branch: %s", name); if (deny_current_branch == DENY_UNCONFIGURED) refuse_unconfigured_deny(); - return "branch is currently checked out"; + ret = "branch is currently checked out"; + goto out; case DENY_UPDATE_INSTEAD: /* pass -- let other checks intervene first */ do_update_worktree = 1; @@ -1521,13 +1527,15 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { error("unpack should have generated %s, " "but I can't find it!", oid_to_hex(new_oid)); - return "bad pack"; + ret = "bad pack"; + goto out; } if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { if (deny_deletes && starts_with(name, "refs/heads/")) { rp_error("denying ref deletion for %s", name); - return "deletion prohibited"; + ret = "deletion prohibited"; + goto out; } if (worktree || (head_name && !strcmp(namespaced_name, head_name))) { @@ -1543,9 +1551,11 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (deny_delete_current == DENY_UNCONFIGURED) refuse_unconfigured_deny_delete_current(); rp_error("refusing to delete the current branch: %s", name); - return "deletion of the current branch prohibited"; + ret = "deletion of the current branch prohibited"; + goto out; default: - return "Invalid denyDeleteCurrent setting"; + ret = "Invalid denyDeleteCurrent setting"; + goto out; } } } @@ -1563,25 +1573,30 @@ static const char *update(struct command *cmd, struct shallow_info *si) old_object->type != OBJ_COMMIT || new_object->type != OBJ_COMMIT) { error("bad sha1 objects for %s", name); - return "bad ref"; + ret = "bad ref"; + goto out; } old_commit = (struct commit *)old_object; new_commit = (struct commit *)new_object; if (!in_merge_bases(old_commit, new_commit)) { rp_error("denying non-fast-forward %s" " (you should pull first)", name); - return "non-fast-forward"; + ret = "non-fast-forward"; + goto out; } } if (run_update_hook(cmd)) { rp_error("hook declined to update %s", name); - return "hook declined"; + ret = "hook declined"; + goto out; } if (do_update_worktree) { - ret = update_worktree(new_oid->hash, find_shared_symref("HEAD", name)); + ret = update_worktree(new_oid->hash, + find_shared_symref(worktrees, "HEAD", + name)); if (ret) - return ret; + goto out; } if (is_null_oid(new_oid)) { @@ -1600,17 +1615,19 @@ static const char *update(struct command *cmd, struct shallow_info *si) old_oid, 0, "push", &err)) { rp_error("%s", err.buf); - strbuf_release(&err); - return "failed to delete"; + ret = "failed to delete"; + } else { + ret = NULL; /* good */ } strbuf_release(&err); - return NULL; /* good */ } else { struct strbuf err = STRBUF_INIT; if (shallow_update && si->shallow_ref[cmd->index] && - update_shallow_ref(cmd, si)) - return "shallow error"; + update_shallow_ref(cmd, si)) { + ret = "shallow error"; + goto out; + } if (ref_transaction_update(transaction, namespaced_name, @@ -1618,14 +1635,16 @@ static const char *update(struct command *cmd, struct shallow_info *si) 0, "push", &err)) { rp_error("%s", err.buf); - strbuf_release(&err); - - return "failed to update ref"; + ret = "failed to update ref"; + } else { + ret = NULL; /* good */ } strbuf_release(&err); - - return NULL; /* good */ } + +out: + free_worktrees(worktrees); + return ret; } static void run_update_post_hook(struct command *commands) diff --git a/worktree.c b/worktree.c index 2c155b1015082e..6f598dcfcdf96f 100644 --- a/worktree.c +++ b/worktree.c @@ -404,17 +404,13 @@ int is_worktree_being_bisected(const struct worktree *wt, * bisect). New commands that do similar things should update this * function as well. */ -const struct worktree *find_shared_symref(const char *symref, +const struct worktree *find_shared_symref(struct worktree **worktrees, + const char *symref, const char *target) { const struct worktree *existing = NULL; - static struct worktree **worktrees; int i = 0; - if (worktrees) - free_worktrees(worktrees); - worktrees = get_worktrees(); - for (i = 0; worktrees[i]; i++) { struct worktree *wt = worktrees[i]; const char *symref_target; diff --git a/worktree.h b/worktree.h index 8b7c408132d1f7..9e06fcbdf3d53f 100644 --- a/worktree.h +++ b/worktree.h @@ -143,9 +143,10 @@ void free_worktrees(struct worktree **); /* * Check if a per-worktree symref points to a ref in the main worktree * or any linked worktree, and return the worktree that holds the ref, - * or NULL otherwise. The result may be destroyed by the next call. + * or NULL otherwise. */ -const struct worktree *find_shared_symref(const char *symref, +const struct worktree *find_shared_symref(struct worktree **worktrees, + const char *symref, const char *target); /* From 8bc1f39f411e06b940230dc84da5568dfafec922 Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:44 -0800 Subject: [PATCH 5/8] fetch: protect branches checked out in all worktrees MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Refuse to fetch into the currently checked out branch of any working tree, not just the current one. Fixes this previously reported bug: https://lore.kernel.org/git/cb957174-5e9a-5603-ea9e-ac9b58a2eaad@mathema.de/ As a side effect of using find_shared_symref, we’ll also refuse the fetch when we’re on a detached HEAD because we’re rebasing or bisecting on the branch in question. This seems like a sensible change. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- builtin/fetch.c | 75 +++++++++++++++++++++++-------------------- t/t5516-fetch-push.sh | 18 +++++++++++ 2 files changed, 58 insertions(+), 35 deletions(-) diff --git a/builtin/fetch.c b/builtin/fetch.c index 16b98523ceeea0..e45185cf9cf5ec 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -28,6 +28,7 @@ #include "promisor-remote.h" #include "commit-graph.h" #include "shallow.h" +#include "worktree.h" #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000) @@ -848,13 +849,12 @@ static void format_display(struct strbuf *display, char code, static int update_local_ref(struct ref *ref, struct ref_transaction *transaction, - const char *remote, - const struct ref *remote_ref, - struct strbuf *display, - int summary_width) + const char *remote, const struct ref *remote_ref, + struct strbuf *display, int summary_width, + struct worktree **worktrees) { struct commit *current = NULL, *updated; - struct branch *current_branch = branch_get(NULL); + const struct worktree *wt; const char *pretty_ref = prettify_refname(ref->name); int fast_forward = 0; @@ -868,16 +868,17 @@ static int update_local_ref(struct ref *ref, return 0; } - if (current_branch && - !strcmp(ref->name, current_branch->name) && - !(update_head_ok || is_bare_repository()) && - !is_null_oid(&ref->old_oid)) { + if (!update_head_ok && + (wt = find_shared_symref(worktrees, "HEAD", ref->name)) && + !wt->is_bare && !is_null_oid(&ref->old_oid)) { /* * If this is the head, and it's not okay to update * the head, and the old value of the head isn't empty... */ format_display(display, '!', _("[rejected]"), - _("can't fetch in current branch"), + wt->is_current ? + _("can't fetch in current branch") : + _("checked out in another worktree"), remote, pretty_ref, summary_width); return 1; } @@ -1076,7 +1077,8 @@ N_("it took %.2f seconds to check forced updates; you can use\n" "to avoid this check\n"); static int store_updated_refs(const char *raw_url, const char *remote_name, - int connectivity_checked, struct ref *ref_map) + int connectivity_checked, struct ref *ref_map, + struct worktree **worktrees) { struct fetch_head fetch_head; int url_len, i, rc = 0; @@ -1205,7 +1207,8 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, strbuf_reset(¬e); if (ref) { rc |= update_local_ref(ref, transaction, what, - rm, ¬e, summary_width); + rm, ¬e, summary_width, + worktrees); free(ref); } else if (write_fetch_head || dry_run) { /* @@ -1298,7 +1301,9 @@ static int check_exist_and_connected(struct ref *ref_map) return check_connected(iterate_ref_map, &rm, &opt); } -static int fetch_and_consume_refs(struct transport *transport, struct ref *ref_map) +static int fetch_and_consume_refs(struct transport *transport, + struct ref *ref_map, + struct worktree **worktrees) { int connectivity_checked = 1; int ret; @@ -1319,10 +1324,8 @@ static int fetch_and_consume_refs(struct transport *transport, struct ref *ref_m } trace2_region_enter("fetch", "consume_refs", the_repository); - ret = store_updated_refs(transport->url, - transport->remote->name, - connectivity_checked, - ref_map); + ret = store_updated_refs(transport->url, transport->remote->name, + connectivity_checked, ref_map, worktrees); trace2_region_leave("fetch", "consume_refs", the_repository); out: @@ -1385,19 +1388,18 @@ static int prune_refs(struct refspec *rs, struct ref *ref_map, return result; } -static void check_not_current_branch(struct ref *ref_map) +static void check_not_current_branch(struct ref *ref_map, + struct worktree **worktrees) { - struct branch *current_branch = branch_get(NULL); - - if (is_bare_repository() || !current_branch) - return; - + const struct worktree *wt; for (; ref_map; ref_map = ref_map->next) - if (ref_map->peer_ref && !strcmp(current_branch->refname, - ref_map->peer_ref->name)) - die(_("refusing to fetch into current branch %s " - "of non-bare repository"), - current_branch->refname); + if (ref_map->peer_ref && + (wt = find_shared_symref(worktrees, "HEAD", + ref_map->peer_ref->name)) && + !wt->is_bare) + die(_("refusing to fetch into branch '%s' " + "checked out at '%s'"), + ref_map->peer_ref->name, wt->path); } static int truncate_fetch_head(void) @@ -1495,7 +1497,8 @@ static struct transport *prepare_transport(struct remote *remote, int deepen) return transport; } -static void backfill_tags(struct transport *transport, struct ref *ref_map) +static void backfill_tags(struct transport *transport, struct ref *ref_map, + struct worktree **worktrees) { int cannot_reuse; @@ -1516,7 +1519,7 @@ static void backfill_tags(struct transport *transport, struct ref *ref_map) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); transport_set_option(transport, TRANS_OPT_DEPTH, "0"); transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL); - fetch_and_consume_refs(transport, ref_map); + fetch_and_consume_refs(transport, ref_map, worktrees); if (gsecondary) { transport_disconnect(gsecondary); @@ -1534,6 +1537,7 @@ static int do_fetch(struct transport *transport, struct transport_ls_refs_options transport_ls_refs_options = TRANSPORT_LS_REFS_OPTIONS_INIT; int must_list_refs = 1; + struct worktree **worktrees = get_worktrees(); if (tags == TAGS_DEFAULT) { if (transport->remote->fetch_tags == 2) @@ -1589,7 +1593,7 @@ static int do_fetch(struct transport *transport, ref_map = get_ref_map(transport->remote, remote_refs, rs, tags, &autotags); if (!update_head_ok) - check_not_current_branch(ref_map); + check_not_current_branch(ref_map, worktrees); if (tags == TAGS_DEFAULT && autotags) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); @@ -1607,7 +1611,7 @@ static int do_fetch(struct transport *transport, transport->url); } } - if (fetch_and_consume_refs(transport, ref_map)) { + if (fetch_and_consume_refs(transport, ref_map, worktrees)) { free_refs(ref_map); retcode = 1; goto cleanup; @@ -1656,7 +1660,7 @@ static int do_fetch(struct transport *transport, "you need to specify exactly one branch with the --set-upstream option")); } } - skip: +skip: free_refs(ref_map); /* if neither --no-tags nor --tags was specified, do automated tag @@ -1666,11 +1670,12 @@ static int do_fetch(struct transport *transport, ref_map = NULL; find_non_local_tags(remote_refs, &ref_map, &tail); if (ref_map) - backfill_tags(transport, ref_map); + backfill_tags(transport, ref_map, worktrees); free_refs(ref_map); } - cleanup: +cleanup: + free_worktrees(worktrees); return retcode; } diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 8212ca56dc5b13..f07e32126fced4 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -1771,4 +1771,22 @@ test_expect_success 'denyCurrentBranch and worktrees' ' git -C cloned push origin HEAD:new-wt && test_must_fail git -C cloned push --delete origin new-wt ' + +test_expect_success 'refuse fetch to current branch of worktree' ' + test_when_finished "git worktree remove --force wt && git branch -D wt" && + git worktree add wt && + test_commit apple && + test_must_fail git fetch . HEAD:wt && + git fetch -u . HEAD:wt +' + +test_expect_success 'refuse fetch to current branch of bare repository worktree' ' + test_when_finished "rm -fr bare.git" && + git clone --bare . bare.git && + git -C bare.git worktree add wt && + test_commit banana && + test_must_fail git -C bare.git fetch .. HEAD:wt && + git -C bare.git fetch -u .. HEAD:wt +' + test_done From 38baae6cfe4ac3af60e127b9e7f9de04c47c4881 Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:45 -0800 Subject: [PATCH 6/8] receive-pack: clean dead code from update_worktree() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit update_worktree() can only be called with a non-NULL worktree parameter, because that’s the only case where we set do_update_worktree = 1. worktree->path is always initialized to non-NULL. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- builtin/receive-pack.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 525b021ec04bef..29dc0e56f74c7d 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -1449,29 +1449,22 @@ static const char *push_to_checkout(unsigned char *hash, static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree) { - const char *retval, *work_tree, *git_dir = NULL; + const char *retval, *git_dir; struct strvec env = STRVEC_INIT; - if (worktree && worktree->path) - work_tree = worktree->path; - else if (git_work_tree_cfg) - work_tree = git_work_tree_cfg; - else - work_tree = ".."; + if (!worktree || !worktree->path) + BUG("worktree->path must be non-NULL"); if (is_bare_repository()) return "denyCurrentBranch = updateInstead needs a worktree"; - if (worktree) - git_dir = get_worktree_git_dir(worktree); - if (!git_dir) - git_dir = get_git_dir(); + git_dir = get_worktree_git_dir(worktree); strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir)); if (!hook_exists(push_to_checkout_hook)) - retval = push_to_deploy(sha1, &env, work_tree); + retval = push_to_deploy(sha1, &env, worktree->path); else - retval = push_to_checkout(sha1, &env, work_tree); + retval = push_to_checkout(sha1, &env, worktree->path); strvec_clear(&env); return retval; @@ -1592,9 +1585,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) } if (do_update_worktree) { - ret = update_worktree(new_oid->hash, - find_shared_symref(worktrees, "HEAD", - name)); + ret = update_worktree(new_oid->hash, worktree); if (ret) goto out; } From 9fdf4f1db422cc259e4a3ce0023a255102c6fa3b Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:46 -0800 Subject: [PATCH 7/8] receive-pack: protect current branch for bare repository worktree MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A bare repository won’t have a working tree at "..", but it may still have separate working trees created with git worktree. We should protect the current branch of such working trees from being updated or deleted, according to receive.denyCurrentBranch. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- builtin/receive-pack.c | 8 +++----- t/t5516-fetch-push.sh | 14 ++++++++++++++ 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 29dc0e56f74c7d..26ecaa5cd55dcd 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -1455,7 +1455,7 @@ static const char *update_worktree(unsigned char *sha1, const struct worktree *w if (!worktree || !worktree->path) BUG("worktree->path must be non-NULL"); - if (is_bare_repository()) + if (worktree->is_bare) return "denyCurrentBranch = updateInstead needs a worktree"; git_dir = get_worktree_git_dir(worktree); @@ -1481,9 +1481,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) int do_update_worktree = 0; struct worktree **worktrees = get_worktrees(); const struct worktree *worktree = - is_bare_repository() ? - NULL : - find_shared_symref(worktrees, "HEAD", name); + find_shared_symref(worktrees, "HEAD", name); /* only refs/... are allowed */ if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { @@ -1496,7 +1494,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) free(namespaced_name); namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); - if (worktree) { + if (worktree && !worktree->is_bare) { switch (deny_current_branch) { case DENY_IGNORE: break; diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index f07e32126fced4..cd2e144c372ebe 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -1769,9 +1769,23 @@ test_expect_success 'denyCurrentBranch and worktrees' ' test_must_fail git -C cloned push origin HEAD:new-wt && test_config receive.denyCurrentBranch updateInstead && git -C cloned push origin HEAD:new-wt && + test_path_exists new-wt/first.t && test_must_fail git -C cloned push --delete origin new-wt ' +test_expect_success 'denyCurrentBranch and bare repository worktrees' ' + test_when_finished "rm -fr bare.git" && + git clone --bare . bare.git && + git -C bare.git worktree add wt && + test_commit grape && + git -C bare.git config receive.denyCurrentBranch refuse && + test_must_fail git push bare.git HEAD:wt && + git -C bare.git config receive.denyCurrentBranch updateInstead && + git push bare.git HEAD:wt && + test_path_exists bare.git/wt/grape.t && + test_must_fail git push --delete bare.git wt +' + test_expect_success 'refuse fetch to current branch of worktree' ' test_when_finished "git worktree remove --force wt && git branch -D wt" && git worktree add wt && From 593a2a5d0639b4b4f91ff6e6ffb64e72020f8fd8 Mon Sep 17 00:00:00 2001 From: Anders Kaseorg Date: Wed, 1 Dec 2021 14:15:47 -0800 Subject: [PATCH 8/8] branch: protect branches checked out in all worktrees Refuse to force-move a branch over the currently checked out branch of any working tree, not just the current one. Signed-off-by: Anders Kaseorg Signed-off-by: Junio C Hamano --- branch.c | 13 +++++++++---- t/t3200-branch.sh | 7 +++++++ 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/branch.c b/branch.c index c66b222abd4fbf..2cfe496d242794 100644 --- a/branch.c +++ b/branch.c @@ -199,7 +199,8 @@ int validate_branchname(const char *name, struct strbuf *ref) */ int validate_new_branchname(const char *name, struct strbuf *ref, int force) { - const char *head; + struct worktree **worktrees; + const struct worktree *wt; if (!validate_branchname(name, ref)) return 0; @@ -208,9 +209,13 @@ int validate_new_branchname(const char *name, struct strbuf *ref, int force) die(_("a branch named '%s' already exists"), ref->buf + strlen("refs/heads/")); - head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); - if (!is_bare_repository() && head && !strcmp(head, ref->buf)) - die(_("cannot force update the current branch")); + worktrees = get_worktrees(); + wt = find_shared_symref(worktrees, "HEAD", ref->buf); + if (wt && !wt->is_bare) + die(_("cannot force update the branch '%s'" + "checked out at '%s'"), + ref->buf + strlen("refs/heads/"), wt->path); + free_worktrees(worktrees); return 1; } diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index e35e119beeabc5..8a619d785e4f7b 100755 --- a/t/t3200-branch.sh +++ b/t/t3200-branch.sh @@ -168,6 +168,13 @@ test_expect_success 'git branch -M foo bar should fail when bar is checked out' test_must_fail git branch -M bar foo ' +test_expect_success 'git branch -M foo bar should fail when bar is checked out in worktree' ' + git branch -f bar && + test_when_finished "git worktree remove wt && git branch -D wt" && + git worktree add wt && + test_must_fail git branch -M bar wt +' + test_expect_success 'git branch -M baz bam should succeed when baz is checked out' ' git checkout -b baz && git branch bam &&