From patchwork Thu May 27 04:53:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elijah Newren X-Patchwork-Id: 12283319 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1AC2C4707F for ; Thu, 27 May 2021 04:54:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AAB21613CC for ; Thu, 27 May 2021 04:54:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234253AbhE0Ezh (ORCPT ); Thu, 27 May 2021 00:55:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233375AbhE0Eze (ORCPT ); Thu, 27 May 2021 00:55:34 -0400 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6710BC061574 for ; Wed, 26 May 2021 21:54:01 -0700 (PDT) Received: by mail-wm1-x32f.google.com with SMTP id z130so1909424wmg.2 for ; Wed, 26 May 2021 21:54:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=P7151K4V61vzADltVOc4YEKRtV4mpoiurigAaABdcUU=; b=t+KM92EWSY1Sf3rG66lX0Vwm0DgE/AjsuUXzjuSrgNhbeNjYF6s+FDcQNOO6y9kC3G /q5SrMQ/oB0zjDSTmiuD9Gzc+wzgw7j3ETYjFQzKZo3QGjLUc3vKNwJos5lpi0bFu9cf rnY4u5B4CGkZkLvfhlUjXUTWMWIcxPDbHDmspHgMYc4FkRB9Ls1KFP9NgVPHlobo01d1 Z9EgawQtprb+EcV/40C6SP7qc4QaaJHAKaExA0Hmom1aJT7qXsK40VKByIZsuMe+WUch DVtNlU6cT2t0SXJDgXTFUi7XJ4Je/s5/4HM6dlPzjsAgB7FTmpt4twxyBmjO3VoiKVdr 5flw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=P7151K4V61vzADltVOc4YEKRtV4mpoiurigAaABdcUU=; b=hSo4Ubq7CbHeXfTl3gx4npMEM9mk5SAg7GgIr+ZXnA2f8u0w5jcJ5e/FBpYEY7f7Wf RmkdffcltzpALX3hKoMYIe2r4HOC9KVxmbLODPyKUBrNQaRIgyrEcoWNxPG05DANUm3f B6GEA9Y6pQzKZheXSe7KPF27majMW0l+cCZs2rcSWZiYN7uOjVDpiI8IAUcQavBXHeXC 4Pnf15PPPpl7Wcv2lZQgL4FNcAqFoXoICRgMIMvJqXWFjR2Uc2cjKco0Yiusj4xiKH/i vif2uuSXztFIzyuh7IIB3ROgIst4Hh37BzzqabU8r8YupjrfrTuc6yohaW8Zlc3uED2K /i4w== X-Gm-Message-State: AOAM532M1NwwSrJjFuvDRi7UcB7tMiZw2faMy4xZqnaq544vJXy6PJ55 tvRfchOINfq+KMEW/dCW/poVYpODvFI= X-Google-Smtp-Source: ABdhPJxI76Xba5u+oARzGxmOvsHZq28YwvNTui+670yemet+2ZeycWSQDRdatfWXvO1bTIKvYnIptQ== X-Received: by 2002:a05:600c:4e8c:: with SMTP id f12mr1434258wmq.187.1622091240016; Wed, 26 May 2021 21:54:00 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id f20sm1436130wmh.41.2021.05.26.21.53.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 May 2021 21:53:59 -0700 (PDT) Message-Id: <970fad21c0286fb716b38a332f9704784aa6cf8f.1622091237.git.gitgitgadget@gmail.com> In-Reply-To: References: Date: Thu, 27 May 2021 04:53:56 +0000 Subject: [PATCH 2/2] dir: introduce readdir_skip_dot_and_dotdot() helper Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Elijah Newren , Elijah Newren Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Elijah Newren From: Elijah Newren Many places in the code were doing while ((d = readdir(dir)) != NULL) { if (is_dot_or_dotdot(d->d_name)) continue; ...process d... } Introduce a readdir_skip_dot_and_dotdot() helper to make that a one-liner: while ((d = readdir_skip_dot_and_dotdot(dir)) != NULL) { ...process d... } This helper particularly simplifies checks for empty directories. Also use this helper in read_cached_dir() so that our statistics are consistent across platforms. (In other words, read_cached_dir() should have been using is_dot_or_dotdot() and skipping such entries, but did not and left it to treat_path() to detect and mark such entries as path_none.) Signed-off-by: Elijah Newren --- builtin/clean.c | 4 +--- builtin/worktree.c | 4 +--- diff-no-index.c | 5 ++--- dir.c | 25 ++++++++++++++++--------- dir.h | 2 ++ entry.c | 5 +---- notes-merge.c | 5 +---- object-file.c | 4 +--- packfile.c | 5 +---- rerere.c | 4 +--- worktree.c | 12 +++--------- 11 files changed, 30 insertions(+), 45 deletions(-) diff --git a/builtin/clean.c b/builtin/clean.c index 995053b79173..a1a57476153b 100644 --- a/builtin/clean.c +++ b/builtin/clean.c @@ -189,10 +189,8 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, strbuf_complete(path, '/'); len = path->len; - while ((e = readdir(dir)) != NULL) { + while ((e = readdir_skip_dot_and_dotdot(dir)) != NULL) { struct stat st; - if (is_dot_or_dotdot(e->d_name)) - continue; strbuf_setlen(path, len); strbuf_addstr(path, e->d_name); diff --git a/builtin/worktree.c b/builtin/worktree.c index 1cd5c2016e3f..e081ca9befd1 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -118,10 +118,8 @@ static void prune_worktrees(void) struct dirent *d; if (!dir) return; - while ((d = readdir(dir)) != NULL) { + while ((d = readdir_skip_dot_and_dotdot(dir)) != NULL) { char *path; - if (is_dot_or_dotdot(d->d_name)) - continue; strbuf_reset(&reason); if (should_prune_worktree(d->d_name, &reason, &path, expire)) prune_worktree(d->d_name, reason.buf); diff --git a/diff-no-index.c b/diff-no-index.c index 7814eabfe028..e5cc87837143 100644 --- a/diff-no-index.c +++ b/diff-no-index.c @@ -26,9 +26,8 @@ static int read_directory_contents(const char *path, struct string_list *list) if (!(dir = opendir(path))) return error("Could not open directory %s", path); - while ((e = readdir(dir))) - if (!is_dot_or_dotdot(e->d_name)) - string_list_insert(list, e->d_name); + while ((e = readdir_skip_dot_and_dotdot(dir))) + string_list_insert(list, e->d_name); closedir(dir); return 0; diff --git a/dir.c b/dir.c index ff004b298b2a..b909cf9b03da 100644 --- a/dir.c +++ b/dir.c @@ -59,6 +59,17 @@ void dir_init(struct dir_struct *dir) memset(dir, 0, sizeof(*dir)); } +struct dirent *readdir_skip_dot_and_dotdot(DIR *dirp) +{ + struct dirent *e; + + while ((e = readdir(dirp)) != NULL) { + if (!is_dot_or_dotdot(e->d_name)) + break; + } + return e; +} + int count_slashes(const char *s) { int cnt = 0; @@ -2332,7 +2343,7 @@ static int read_cached_dir(struct cached_dir *cdir) struct dirent *de; if (cdir->fdir) { - de = readdir(cdir->fdir); + de = readdir_skip_dot_and_dotdot(cdir->fdir); if (!de) { cdir->d_name = NULL; cdir->d_type = DT_UNKNOWN; @@ -2931,11 +2942,9 @@ int is_empty_dir(const char *path) if (!dir) return 0; - while ((e = readdir(dir)) != NULL) - if (!is_dot_or_dotdot(e->d_name)) { - ret = 0; - break; - } + e = readdir_skip_dot_and_dotdot(dir); + if (e) + ret = 0; closedir(dir); return ret; @@ -2975,10 +2984,8 @@ static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) strbuf_complete(path, '/'); len = path->len; - while ((e = readdir(dir)) != NULL) { + while ((e = readdir_skip_dot_and_dotdot(dir)) != NULL) { struct stat st; - if (is_dot_or_dotdot(e->d_name)) - continue; strbuf_setlen(path, len); strbuf_addstr(path, e->d_name); diff --git a/dir.h b/dir.h index 70c750e3053d..6b3fac082945 100644 --- a/dir.h +++ b/dir.h @@ -342,6 +342,8 @@ struct dir_struct { unsigned visited_directories; }; +struct dirent *readdir_skip_dot_and_dotdot(DIR *dirp); + /*Count the number of slashes for string s*/ int count_slashes(const char *s); diff --git a/entry.c b/entry.c index 7b9f43716f76..e3d3add30007 100644 --- a/entry.c +++ b/entry.c @@ -56,12 +56,9 @@ static void remove_subtree(struct strbuf *path) if (!dir) die_errno("cannot opendir '%s'", path->buf); - while ((de = readdir(dir)) != NULL) { + while ((de = readdir_skip_dot_and_dotdot(dir)) != NULL) { struct stat st; - if (is_dot_or_dotdot(de->d_name)) - continue; - strbuf_addch(path, '/'); strbuf_addstr(path, de->d_name); if (lstat(path->buf, &st)) diff --git a/notes-merge.c b/notes-merge.c index d2771fa3d43c..e9d6f86d3428 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -695,13 +695,10 @@ int notes_merge_commit(struct notes_merge_options *o, strbuf_addch(&path, '/'); baselen = path.len; - while ((e = readdir(dir)) != NULL) { + while ((e = readdir_skip_dot_and_dotdot(dir)) != NULL) { struct stat st; struct object_id obj_oid, blob_oid; - if (is_dot_or_dotdot(e->d_name)) - continue; - if (get_oid_hex(e->d_name, &obj_oid)) { if (o->verbosity >= 3) printf("Skipping non-SHA1 entry '%s%s'\n", diff --git a/object-file.c b/object-file.c index 624af408cdcd..77bdcfd21bc8 100644 --- a/object-file.c +++ b/object-file.c @@ -2304,10 +2304,8 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr, strbuf_addch(path, '/'); baselen = path->len; - while ((de = readdir(dir))) { + while ((de = readdir_skip_dot_and_dotdot(dir))) { size_t namelen; - if (is_dot_or_dotdot(de->d_name)) - continue; namelen = strlen(de->d_name); strbuf_setlen(path, baselen); diff --git a/packfile.c b/packfile.c index ea29f4ba7735..463d61c87761 100644 --- a/packfile.c +++ b/packfile.c @@ -813,10 +813,7 @@ void for_each_file_in_pack_dir(const char *objdir, } strbuf_addch(&path, '/'); dirnamelen = path.len; - while ((de = readdir(dir)) != NULL) { - if (is_dot_or_dotdot(de->d_name)) - continue; - + while ((de = readdir_skip_dot_and_dotdot(dir)) != NULL) { strbuf_setlen(&path, dirnamelen); strbuf_addstr(&path, de->d_name); diff --git a/rerere.c b/rerere.c index dee60dc6df63..d83d58df4fbc 100644 --- a/rerere.c +++ b/rerere.c @@ -1190,13 +1190,11 @@ void rerere_gc(struct repository *r, struct string_list *rr) if (!dir) die_errno(_("unable to open rr-cache directory")); /* Collect stale conflict IDs ... */ - while ((e = readdir(dir))) { + while ((e = readdir_skip_dot_and_dotdot(dir))) { struct rerere_dir *rr_dir; struct rerere_id id; int now_empty; - if (is_dot_or_dotdot(e->d_name)) - continue; if (!is_rr_cache_dirname(e->d_name)) continue; /* or should we remove e->d_name? */ diff --git a/worktree.c b/worktree.c index f35ac40a84a5..237517baee67 100644 --- a/worktree.c +++ b/worktree.c @@ -128,10 +128,8 @@ struct worktree **get_worktrees(void) dir = opendir(path.buf); strbuf_release(&path); if (dir) { - while ((d = readdir(dir)) != NULL) { + while ((d = readdir_skip_dot_and_dotdot(dir)) != NULL) { struct worktree *linked = NULL; - if (is_dot_or_dotdot(d->d_name)) - continue; if ((linked = get_linked_worktree(d->d_name))) { ALLOC_GROW(list, counter + 1, alloc); @@ -486,13 +484,9 @@ int submodule_uses_worktrees(const char *path) if (!dir) return 0; - while ((d = readdir(dir)) != NULL) { - if (is_dot_or_dotdot(d->d_name)) - continue; - + d = readdir_skip_dot_and_dotdot(dir); + if (d != NULL) ret = 1; - break; - } closedir(dir); return ret; }