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[186.245.85.163]) by smtp.gmail.com with ESMTPSA id 137sm8162258qkd.19.2017.04.02.13.05.37 (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 02 Apr 2017 13:05:40 -0700 (PDT) From: Daniel Ferreira To: git@vger.kernel.org Cc: gitster@pobox.com, sbeller@google.com, pclouds@gmail.com, mhagger@alum.mit.edu, Daniel Ferreira , Daniel Ferreira Subject: [PATCH v7 5/5] remove_subtree(): reimplement using iterators Date: Sun, 2 Apr 2017 17:03:08 -0300 Message-Id: <1491163388-41255-6-git-send-email-bnmvco@gmail.com> X-Mailer: git-send-email 2.7.4 (Apple Git-66) In-Reply-To: <1491163388-41255-1-git-send-email-bnmvco@gmail.com> References: <1491163388-41255-1-git-send-email-bnmvco@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Daniel Ferreira Use dir_iterator to traverse through remove_subtree()'s directory tree, avoiding the need for recursive calls to readdir(). Simplify remove_subtree()'s code. A conversion similar in purpose was previously done at 46d092a ("for_each_reflog(): reimplement using iterators", 2016-05-21). Signed-off-by: Daniel Ferreira --- entry.c | 38 ++++++++++++-------------------------- 1 file changed, 12 insertions(+), 26 deletions(-) diff --git a/entry.c b/entry.c index d2b512d..bd06f41 100644 --- a/entry.c +++ b/entry.c @@ -3,6 +3,8 @@ #include "dir.h" #include "streaming.h" #include "submodule.h" +#include "iterator.h" +#include "dir-iterator.h" static void create_directories(const char *path, int path_len, const struct checkout *state) @@ -45,33 +47,17 @@ static void create_directories(const char *path, int path_len, free(buf); } -static void remove_subtree(struct strbuf *path) +static void remove_subtree(const char *path) { - DIR *dir = opendir(path->buf); - struct dirent *de; - int origlen = path->len; - - if (!dir) - die_errno("cannot opendir '%s'", path->buf); - while ((de = readdir(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)) - die_errno("cannot lstat '%s'", path->buf); - if (S_ISDIR(st.st_mode)) - remove_subtree(path); - else if (unlink(path->buf)) - die_errno("cannot unlink '%s'", path->buf); - strbuf_setlen(path, origlen); + struct dir_iterator *diter = dir_iterator_begin(path, DIR_ITERATOR_POST_ORDER_TRAVERSAL | DIR_ITERATOR_LIST_ROOT_DIR); + + while (dir_iterator_advance(diter) == ITER_OK) { + if (S_ISDIR(diter->st.st_mode)) { + if (rmdir(diter->path.buf)) + die_errno("cannot rmdir '%s'", diter->path.buf); + } else if (unlink(diter->path.buf)) + die_errno("cannot unlink '%s'", diter->path.buf); } - closedir(dir); - if (rmdir(path->buf)) - die_errno("cannot rmdir '%s'", path->buf); } static int create_file(const char *path, unsigned int mode) @@ -312,7 +298,7 @@ int checkout_entry(struct cache_entry *ce, return 0; if (!state->force) return error("%s is a directory", path.buf); - remove_subtree(&path); + remove_subtree(path.buf); } else if (unlink(path.buf)) return error_errno("unable to unlink old '%s'", path.buf); } else if (state->not_new) -- 2.7.4 (Apple Git-66)