From cd1799dea097cee064db1d09966fee88078476e9 Mon Sep 17 00:00:00 2001 From: Han-Wen Nienhuys Date: Thu, 23 Dec 2021 19:29:50 +0000 Subject: reftable: support preset file mode for writing Create files with mode 0666, so umask works as intended. Provides an override, which is useful to support shared repos (test t1301-shared-repo.sh). Signed-off-by: Han-Wen Nienhuys Signed-off-by: Junio C Hamano --- reftable/reftable-writer.h | 3 +++ reftable/stack.c | 30 ++++++++++++++++++++++++------ reftable/stack_test.c | 33 +++++++++++++++++++++++++++++---- 3 files changed, 56 insertions(+), 10 deletions(-) (limited to 'reftable') diff --git a/reftable/reftable-writer.h b/reftable/reftable-writer.h index af36462ced..a560dc1725 100644 --- a/reftable/reftable-writer.h +++ b/reftable/reftable-writer.h @@ -35,6 +35,9 @@ struct reftable_write_options { */ uint32_t hash_id; + /* Default mode for creating files. If unset, use 0666 (+umask) */ + unsigned int default_permissions; + /* boolean: do not check ref names for validity or dir/file conflicts. */ unsigned skip_name_check : 1; diff --git a/reftable/stack.c b/reftable/stack.c index df5021ebf0..56bf5f2d84 100644 --- a/reftable/stack.c +++ b/reftable/stack.c @@ -469,7 +469,7 @@ static int reftable_stack_init_addition(struct reftable_addition *add, strbuf_addstr(&add->lock_file_name, ".lock"); add->lock_file_fd = open(add->lock_file_name.buf, - O_EXCL | O_CREAT | O_WRONLY, 0644); + O_EXCL | O_CREAT | O_WRONLY, 0666); if (add->lock_file_fd < 0) { if (errno == EEXIST) { err = REFTABLE_LOCK_ERROR; @@ -478,6 +478,13 @@ static int reftable_stack_init_addition(struct reftable_addition *add, } goto done; } + if (st->config.default_permissions) { + if (chmod(add->lock_file_name.buf, st->config.default_permissions) < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + } + err = stack_uptodate(st); if (err < 0) goto done; @@ -644,7 +651,12 @@ int reftable_addition_add(struct reftable_addition *add, err = REFTABLE_IO_ERROR; goto done; } - + if (add->stack->config.default_permissions) { + if (chmod(temp_tab_file_name.buf, add->stack->config.default_permissions)) { + err = REFTABLE_IO_ERROR; + goto done; + } + } wr = reftable_new_writer(reftable_fd_write, &tab_fd, &add->stack->config); err = write_table(wr, arg); @@ -900,7 +912,7 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last, strbuf_addstr(&lock_file_name, ".lock"); lock_file_fd = - open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0644); + open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0666); if (lock_file_fd < 0) { if (errno == EEXIST) { err = 1; @@ -931,8 +943,8 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last, strbuf_addstr(&subtab_lock, ".lock"); sublock_file_fd = open(subtab_lock.buf, - O_EXCL | O_CREAT | O_WRONLY, 0644); - if (sublock_file_fd > 0) { + O_EXCL | O_CREAT | O_WRONLY, 0666); + if (sublock_file_fd >= 0) { close(sublock_file_fd); } else if (sublock_file_fd < 0) { if (errno == EEXIST) { @@ -967,7 +979,7 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last, goto done; lock_file_fd = - open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0644); + open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0666); if (lock_file_fd < 0) { if (errno == EEXIST) { err = 1; @@ -977,6 +989,12 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last, goto done; } have_lock = 1; + if (st->config.default_permissions) { + if (chmod(lock_file_name.buf, st->config.default_permissions) < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + } format_name(&new_table_name, st->readers[first]->min_update_index, st->readers[last]->max_update_index); diff --git a/reftable/stack_test.c b/reftable/stack_test.c index eb0b7228b0..f4c743db80 100644 --- a/reftable/stack_test.c +++ b/reftable/stack_test.c @@ -17,6 +17,7 @@ https://developers.google.com/open-source/licenses/bsd #include "record.h" #include "test_framework.h" #include "reftable-tests.h" +#include "reader.h" #include #include @@ -138,8 +139,11 @@ static int write_test_log(struct reftable_writer *wr, void *arg) static void test_reftable_stack_add_one(void) { char *dir = get_tmp_dir(__LINE__); - - struct reftable_write_options cfg = { 0 }; + struct strbuf scratch = STRBUF_INIT; + int mask = umask(002); + struct reftable_write_options cfg = { + .default_permissions = 0660, + }; struct reftable_stack *st = NULL; int err; struct reftable_ref_record ref = { @@ -149,8 +153,7 @@ static void test_reftable_stack_add_one(void) .value.symref = "master", }; struct reftable_ref_record dest = { NULL }; - - + struct stat stat_result = { 0 }; err = reftable_new_stack(&st, dir, cfg); EXPECT_ERR(err); @@ -160,6 +163,7 @@ static void test_reftable_stack_add_one(void) err = reftable_stack_read_ref(st, ref.refname, &dest); EXPECT_ERR(err); EXPECT(0 == strcmp("master", dest.value.symref)); + EXPECT(st->readers_len > 0); printf("testing print functionality:\n"); err = reftable_stack_print_directory(dir, GIT_SHA1_FORMAT_ID); @@ -168,9 +172,30 @@ static void test_reftable_stack_add_one(void) err = reftable_stack_print_directory(dir, GIT_SHA256_FORMAT_ID); EXPECT(err == REFTABLE_FORMAT_ERROR); +#ifndef GIT_WINDOWS_NATIVE + strbuf_addstr(&scratch, dir); + strbuf_addstr(&scratch, "/tables.list"); + err = stat(scratch.buf, &stat_result); + EXPECT(!err); + EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions); + + strbuf_reset(&scratch); + strbuf_addstr(&scratch, dir); + strbuf_addstr(&scratch, "/"); + /* do not try at home; not an external API for reftable. */ + strbuf_addstr(&scratch, st->readers[0]->name); + err = stat(scratch.buf, &stat_result); + EXPECT(!err); + EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions); +#else + (void) stat_result; +#endif + reftable_ref_record_release(&dest); reftable_stack_destroy(st); + strbuf_release(&scratch); clear_dir(dir); + umask(mask); } static void test_reftable_stack_uptodate(void) -- cgit v1.2.3