From patchwork Wed Apr 20 20:42:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Hostetler X-Patchwork-Id: 12820794 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89E65C433FE for ; Wed, 20 Apr 2022 20:43:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1382153AbiDTUqW (ORCPT ); Wed, 20 Apr 2022 16:46:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1382127AbiDTUqP (ORCPT ); Wed, 20 Apr 2022 16:46:15 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 886A938D8D for ; Wed, 20 Apr 2022 13:43:28 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id w4so3826445wrg.12 for ; Wed, 20 Apr 2022 13:43:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=XEOJPlnBxdyHowBZdh3y4jZnw2C/J1d1GlvxDT+qV1c=; b=Yu8SNyL6RmGKK5hZjWU2AtOrvkeudmNaSOr1vSGy1yDsnHWdQx5FgU7c3bfL2hYSuQ +XE2A9X/pPY6N99qWoqXGrAhmSQPfbomrXucS+/Gy3NMm+OMt7w/lpdTyEaf/FJqdLzj 4n4NZxKr21vDTV38WwIYylh1UKwhdy57B9jHG0fys5zRierXSSQfWOnUzcD9pxW7UomD A3Oo+wYHQcQ5uNA8eTlRCHTJ+zBGwVXjeePXzXknMLprk0RIduF6I8xNxrCtUDDUARn3 TVG+rprO0TNOrR36x+lGM59uSj6osZ09pPmhBej4N2caqawfQNyMbHKVxL1kWf8YAeC4 f8Ig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=XEOJPlnBxdyHowBZdh3y4jZnw2C/J1d1GlvxDT+qV1c=; b=Eeeq0SSStmygZNv2nXux0yg2wfZ6pp0XMcv3xL1vL+gk8I/DQ5rvOewq1EluHJSKxO iqtFx510nGnGq3p6Kb4NQx30V6rQSzF/qHg6bdJ58VjuNg05ZjEQ8m7N+xctvMhxjjYa 0H3iD4oNOclbV+3lNvAPQX5xvRhjlLWQvQHtpqeMKbFHf6nkJJ4gfS58o0X6IXXmeTZM 2wCKVchkww/0rUMuB8hUuDfYLNUwb3+cYmYn4oYaHbBmdP9yRN+QwkPT/LfbSEOWKnvQ 5t2hiYpOCbGxQWbExvqB4pOil1Fa88RImGKM/aWoNlpG84CcUeGUCNiVrShs/r8IXgpv u0SA== X-Gm-Message-State: AOAM533jh1mG7FGEgRQqVySBpPmHUmnHDUdFrk0my2OS9H0JWJTwO+M7 rHVJrBj+rxaskVo96GGClbgvZH1rJ9U= X-Google-Smtp-Source: ABdhPJzs3Syf64KliF9NpAZM1fb2gRIDrMDWtWZGjr9YpL4XDqvTzr6OSi/1aNUC+JyKO8OdaM1I5g== X-Received: by 2002:adf:d235:0:b0:207:9c11:c8c7 with SMTP id k21-20020adfd235000000b002079c11c8c7mr16662267wrh.443.1650487406719; Wed, 20 Apr 2022 13:43:26 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id u7-20020a05600c19c700b003928959f92dsm383615wmq.2.2022.04.20.13.43.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Apr 2022 13:43:26 -0700 (PDT) Message-Id: <004b67b62e3717c9daeb6dcda1e9d84d44fa4984.1650487399.git.gitgitgadget@gmail.com> In-Reply-To: References: Date: Wed, 20 Apr 2022 20:42:54 +0000 Subject: [PATCH v5 04/28] fsmonitor-settings: bare repos are incompatible with FSMonitor Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Jeff Hostetler , Derrick Stolee , =?utf-8?b?w4Z2YXIgQXJuZmrDtnI=?= =?utf-8?b?w7A=?= Bjarmason , Torsten =?unknown-8bit?q?B?= =?unknown-8bit?q?=C3=B6gershausen?= , rsbecker@nexbridge.com, Bagas Sanjaya , Jeff Hostetler , Jeff Hostetler Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jeff Hostetler From: Jeff Hostetler Bare repos do not have a worktree, so there is nothing for the daemon watch. Signed-off-by: Jeff Hostetler --- builtin/fsmonitor--daemon.c | 6 ++++ builtin/update-index.c | 4 +++ fsmonitor-settings.c | 60 +++++++++++++++++++++++++++++++++++++ fsmonitor-settings.h | 12 ++++++++ t/t7519-status-fsmonitor.sh | 23 ++++++++++++++ 5 files changed, 105 insertions(+) diff --git a/builtin/fsmonitor--daemon.c b/builtin/fsmonitor--daemon.c index 46be55a4618..50ae3cca575 100644 --- a/builtin/fsmonitor--daemon.c +++ b/builtin/fsmonitor--daemon.c @@ -1449,6 +1449,12 @@ int cmd_fsmonitor__daemon(int argc, const char **argv, const char *prefix) die(_("invalid 'ipc-threads' value (%d)"), fsmonitor__ipc_threads); + prepare_repo_settings(the_repository); + fsm_settings__set_ipc(the_repository); + + if (fsm_settings__error_if_incompatible(the_repository)) + return 1; + if (!strcmp(subcmd, "start")) return !!try_to_start_background_daemon(); diff --git a/builtin/update-index.c b/builtin/update-index.c index 876112abb21..d29048f16f2 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -1237,6 +1237,10 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) if (fsmonitor > 0) { enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(r); + + if (fsm_settings__error_if_incompatible(the_repository)) + return 1; + if (fsm_mode == FSMONITOR_MODE_DISABLED) { warning(_("core.fsmonitor is unset; " "set it if you really want to " diff --git a/fsmonitor-settings.c b/fsmonitor-settings.c index 757d230d538..86c09bd35fe 100644 --- a/fsmonitor-settings.c +++ b/fsmonitor-settings.c @@ -9,9 +9,33 @@ */ struct fsmonitor_settings { enum fsmonitor_mode mode; + enum fsmonitor_reason reason; char *hook_path; }; +static void set_incompatible(struct repository *r, + enum fsmonitor_reason reason) +{ + struct fsmonitor_settings *s = r->settings.fsmonitor; + + s->mode = FSMONITOR_MODE_INCOMPATIBLE; + s->reason = reason; +} + +static int check_for_incompatible(struct repository *r) +{ + if (!r->worktree) { + /* + * Bare repositories don't have a working directory and + * therefore have nothing to watch. + */ + set_incompatible(r, FSMONITOR_REASON_BARE); + return 1; + } + + return 0; +} + static void lookup_fsmonitor_settings(struct repository *r) { struct fsmonitor_settings *s; @@ -23,6 +47,7 @@ static void lookup_fsmonitor_settings(struct repository *r) CALLOC_ARRAY(s, 1); s->mode = FSMONITOR_MODE_DISABLED; + s->reason = FSMONITOR_REASON_OK; r->settings.fsmonitor = s; @@ -86,6 +111,9 @@ void fsm_settings__set_ipc(struct repository *r) lookup_fsmonitor_settings(r); + if (check_for_incompatible(r)) + return; + r->settings.fsmonitor->mode = FSMONITOR_MODE_IPC; FREE_AND_NULL(r->settings.fsmonitor->hook_path); } @@ -97,6 +125,9 @@ void fsm_settings__set_hook(struct repository *r, const char *path) lookup_fsmonitor_settings(r); + if (check_for_incompatible(r)) + return; + r->settings.fsmonitor->mode = FSMONITOR_MODE_HOOK; FREE_AND_NULL(r->settings.fsmonitor->hook_path); r->settings.fsmonitor->hook_path = strdup(path); @@ -110,5 +141,34 @@ void fsm_settings__set_disabled(struct repository *r) lookup_fsmonitor_settings(r); r->settings.fsmonitor->mode = FSMONITOR_MODE_DISABLED; + r->settings.fsmonitor->reason = FSMONITOR_REASON_OK; FREE_AND_NULL(r->settings.fsmonitor->hook_path); } + +enum fsmonitor_reason fsm_settings__get_reason(struct repository *r) +{ + if (!r) + r = the_repository; + + lookup_fsmonitor_settings(r); + + return r->settings.fsmonitor->reason; +} + +int fsm_settings__error_if_incompatible(struct repository *r) +{ + enum fsmonitor_reason reason = fsm_settings__get_reason(r); + + switch (reason) { + case FSMONITOR_REASON_OK: + return 0; + + case FSMONITOR_REASON_BARE: + error(_("bare repository '%s' is incompatible with fsmonitor"), + xgetcwd()); + return 1; + } + + BUG("Unhandled case in fsm_settings__error_if_incompatible: '%d'", + reason); +} diff --git a/fsmonitor-settings.h b/fsmonitor-settings.h index a4c5d7b4889..8654edf33d8 100644 --- a/fsmonitor-settings.h +++ b/fsmonitor-settings.h @@ -4,11 +4,20 @@ struct repository; enum fsmonitor_mode { + FSMONITOR_MODE_INCOMPATIBLE = -1, /* see _reason */ FSMONITOR_MODE_DISABLED = 0, FSMONITOR_MODE_HOOK = 1, /* core.fsmonitor= */ FSMONITOR_MODE_IPC = 2, /* core.fsmonitor= */ }; +/* + * Incompatibility reasons. + */ +enum fsmonitor_reason { + FSMONITOR_REASON_OK = 0, /* no incompatibility or when disbled */ + FSMONITOR_REASON_BARE, +}; + void fsm_settings__set_ipc(struct repository *r); void fsm_settings__set_hook(struct repository *r, const char *path); void fsm_settings__set_disabled(struct repository *r); @@ -16,6 +25,9 @@ void fsm_settings__set_disabled(struct repository *r); enum fsmonitor_mode fsm_settings__get_mode(struct repository *r); const char *fsm_settings__get_hook_path(struct repository *r); +enum fsmonitor_reason fsm_settings__get_reason(struct repository *r); +int fsm_settings__error_if_incompatible(struct repository *r); + struct fsmonitor_settings; #endif /* FSMONITOR_SETTINGS_H */ diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh index a6308acf006..9a8e21c5608 100755 --- a/t/t7519-status-fsmonitor.sh +++ b/t/t7519-status-fsmonitor.sh @@ -55,6 +55,29 @@ test_lazy_prereq UNTRACKED_CACHE ' test $ret -ne 1 ' +# Test that we detect and disallow repos that are incompatible with FSMonitor. +test_expect_success 'incompatible bare repo' ' + test_when_finished "rm -rf ./bare-clone actual expect" && + git init --bare bare-clone && + + test_must_fail \ + git -C ./bare-clone -c core.fsmonitor=foo \ + update-index --fsmonitor 2>actual && + grep "bare repository .* is incompatible with fsmonitor" actual && + + test_must_fail \ + git -C ./bare-clone -c core.fsmonitor=true \ + update-index --fsmonitor 2>actual && + grep "bare repository .* is incompatible with fsmonitor" actual +' + +test_expect_success FSMONITOR_DAEMON 'run fsmonitor-daemon in bare repo' ' + test_when_finished "rm -rf ./bare-clone actual" && + git init --bare bare-clone && + test_must_fail git -C ./bare-clone fsmonitor--daemon run 2>actual && + grep "bare repository .* is incompatible with fsmonitor" actual +' + test_expect_success 'setup' ' mkdir -p .git/hooks && : >tracked &&