diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/doc/src/erl_tar.xml | 27 | ||||
| -rw-r--r-- | lib/stdlib/src/erl_eval.erl | 8 | ||||
| -rw-r--r-- | lib/stdlib/src/erl_tar.erl | 38 | ||||
| -rw-r--r-- | lib/stdlib/src/filelib.erl | 2 | ||||
| -rw-r--r-- | lib/stdlib/test/erl_eval_SUITE.erl | 7 | ||||
| -rw-r--r-- | lib/stdlib/test/filelib_SUITE.erl | 40 | ||||
| -rw-r--r-- | lib/stdlib/test/stdlib_SUITE.erl | 12 | ||||
| -rw-r--r-- | lib/stdlib/test/tar_SUITE.erl | 66 |
8 files changed, 174 insertions, 26 deletions
diff --git a/lib/stdlib/doc/src/erl_tar.xml b/lib/stdlib/doc/src/erl_tar.xml index f81e36f810..7f25f5b7bc 100644 --- a/lib/stdlib/doc/src/erl_tar.xml +++ b/lib/stdlib/doc/src/erl_tar.xml @@ -35,10 +35,11 @@ <modulesummary>Unix 'tar' utility for reading and writing tar archives</modulesummary> <description> <p>The <c>erl_tar</c> module archives and extract files to and from - a tar file. The tar file format is the POSIX extended tar file format - specified in IEEE Std 1003.1 and ISO/IEC 9945-1. That is the same - format as used by <c>tar</c> program on Solaris, but is not the same - as used by the GNU tar program.</p> + a tar file. <c>erl_tar</c> supports the <c>ustar</c> format + (IEEE Std 1003.1 and ISO/IEC 9945-1). All modern <c>tar</c> + programs (including GNU tar) can read this format. To ensure that + that GNU tar produces a tar file that <c>erl_tar</c> can read, + give the <c>--format=ustar</c> option to GNU tar.</p> <p>By convention, the name of a tar file should end in "<c>.tar</c>". To abide to the convention, you'll need to add "<c>.tar</c>" yourself to the name.</p> @@ -65,6 +66,20 @@ </description> <section> + <title>UNICODE SUPPORT</title> + <p>If <seealso + marker="kernel:file#native_name_encoding/0">file:native_name_encoding/0</seealso> + returns <c>utf8</c>, path names will be encoded in UTF-8 when + creating tar files and path names will be assumed to be encoded in + UTF-8 when extracting tar files.</p> + + <p>If <seealso + marker="kernel:file#native_name_encoding/0">file:native_name_encoding/0</seealso> + returns <c>latin1</c>, no translation of path names will be + done.</p> + </section> + + <section> <title>LIMITATIONS</title> <p>For maximum compatibility, it is safe to archive files with names up to 100 characters in length. Such tar files can generally be @@ -112,8 +127,8 @@ <fsummary>Add a file to an open tar file</fsummary> <type> <v>TarDescriptor = term()</v> - <v>FilenameOrBin = Filename()|binary()</v> - <v>Filename = filename()()</v> + <v>FilenameOrBin = filename()|binary()</v> + <v>Filename = filename()</v> <v>NameInArchive = filename()</v> <v>Options = [Option]</v> <v>Option = dereference|verbose</v> diff --git a/lib/stdlib/src/erl_eval.erl b/lib/stdlib/src/erl_eval.erl index acde3ad5d6..3cfedfee97 100644 --- a/lib/stdlib/src/erl_eval.erl +++ b/lib/stdlib/src/erl_eval.erl @@ -244,17 +244,17 @@ expr({record,_,_,Name,_}, _Bs, _Lf, _Ef, _RBs) -> erlang:raise(error, {undef_record,Name}, stacktrace()); %% map -expr({map,_, Binding,Es}, Bs0, Lf, Ef, RBs) -> - {value, Map0, Bs1} = expr(Binding, Bs0, Lf, Ef, RBs), +expr({map,_,Binding,Es}, Bs0, Lf, Ef, RBs) -> + {value, Map0, Bs1} = expr(Binding, Bs0, Lf, Ef, none), case Map0 of #{} -> - {Vs,Bs} = eval_map_fields(Es, Bs1, Lf, Ef), + {Vs,Bs2} = eval_map_fields(Es, Bs0, Lf, Ef), Map1 = lists:foldl(fun ({map_assoc,K,V}, Mi) -> maps:put(K, V, Mi); ({map_exact,K,V}, Mi) -> maps:update(K, V, Mi) end, Map0, Vs), - ret_expr(Map1, Bs, RBs); + ret_expr(Map1, merge_bindings(Bs2, Bs1), RBs); _ -> erlang:raise(error, {badarg,Map0}, stacktrace()) end; diff --git a/lib/stdlib/src/erl_tar.erl b/lib/stdlib/src/erl_tar.erl index 40b48d7999..acf7a5cd40 100644 --- a/lib/stdlib/src/erl_tar.erl +++ b/lib/stdlib/src/erl_tar.erl @@ -381,7 +381,12 @@ to_octal(Int, Count, Result) -> to_octal(Int div 8, Count-1, [Int rem 8 + $0|Result]). to_string(Str0, Count) -> - Str = list_to_binary(Str0), + Str = case file:native_name_encoding() of + utf8 -> + unicode:characters_to_binary(Str0); + latin1 -> + list_to_binary(Str0) + end, case byte_size(Str) of Size when Size < Count -> [Str|zeroes(Count-Size)]; @@ -392,9 +397,17 @@ to_string(Str0, Count) -> pad_file(File) -> {ok,Position} = file:position(File, {cur,0}), - %% There must be at least one empty record at the end of the file. - Zeros = zeroes(?block_size - (Position rem ?block_size)), - file:write(File, Zeros). + %% There must be at least two zero records at the end. + Fill = case ?block_size - (Position rem ?block_size) of + Fill0 when Fill0 < 2*?record_size -> + %% We need to another block here to ensure that there + %% are at least two zero records at the end. + Fill0 + ?block_size; + Fill0 -> + %% Large enough. + Fill0 + end, + file:write(File, zeroes(Fill)). split_filename(Name) when length(Name) =< ?th_name_len -> {"", Name}; @@ -608,7 +621,22 @@ typeflag(Bin) -> %% Get the name of the file from the prefix and name fields of the %% tar header. -get_name(Bin) -> +get_name(Bin0) -> + List0 = get_name_raw(Bin0), + case file:native_name_encoding() of + utf8 -> + Bin = list_to_binary(List0), + case unicode:characters_to_list(Bin) of + {error,_,_} -> + List0; + List when is_list(List) -> + List + end; + latin1 -> + List0 + end. + +get_name_raw(Bin) -> Name = from_string(Bin, ?th_name, ?th_name_len), case binary_to_list(Bin, ?th_prefix+1, ?th_prefix+1) of [0] -> diff --git a/lib/stdlib/src/filelib.erl b/lib/stdlib/src/filelib.erl index a266daa084..c0921e4cf1 100644 --- a/lib/stdlib/src/filelib.erl +++ b/lib/stdlib/src/filelib.erl @@ -488,7 +488,7 @@ badpattern(Reason) -> error({badpattern,Reason}). eval_read_file_info(File, file) -> - file:read_file_info(File); + file:read_link_info(File); eval_read_file_info(File, erl_prim_loader) -> case erl_prim_loader:read_file_info(File) of error -> {error, erl_prim_loader}; diff --git a/lib/stdlib/test/erl_eval_SUITE.erl b/lib/stdlib/test/erl_eval_SUITE.erl index b91d14b5b8..b55324161b 100644 --- a/lib/stdlib/test/erl_eval_SUITE.erl +++ b/lib/stdlib/test/erl_eval_SUITE.erl @@ -1451,6 +1451,13 @@ eep43(Config) when is_list(Config) -> " {Map#{a := B},Map#{a => c},Map#{d => e}} " "end.", {#{a => b},#{a => c},#{a => b,d => e}}), + check(fun () -> + lists:map(fun (X) -> X#{price := 0} end, + [#{hello => 0, price => nil}]) + end, + "lists:map(fun (X) -> X#{price := 0} end, + [#{hello => 0, price => nil}]).", + [#{hello => 0, price => 0}]), error_check("[camembert]#{}.", {badarg,[camembert]}), error_check("#{} = 1.", {badmatch,1}), ok. diff --git a/lib/stdlib/test/filelib_SUITE.erl b/lib/stdlib/test/filelib_SUITE.erl index 4a67d68428..8203a03a7a 100644 --- a/lib/stdlib/test/filelib_SUITE.erl +++ b/lib/stdlib/test/filelib_SUITE.erl @@ -23,7 +23,7 @@ init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, wildcard_one/1,wildcard_two/1,wildcard_errors/1, - fold_files/1,otp_5960/1,ensure_dir_eexist/1]). + fold_files/1,otp_5960/1,ensure_dir_eexist/1,symlinks/1]). -import(lists, [foreach/2]). @@ -43,7 +43,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [wildcard_one, wildcard_two, wildcard_errors, - fold_files, otp_5960, ensure_dir_eexist]. + fold_files, otp_5960, ensure_dir_eexist, symlinks]. groups() -> []. @@ -366,3 +366,39 @@ ensure_dir_eexist(Config) when is_list(Config) -> ?line {error, eexist} = filelib:ensure_dir(NeedFile), ?line {error, eexist} = filelib:ensure_dir(NeedFileB), ok. + +symlinks(Config) when is_list(Config) -> + PrivDir = ?config(priv_dir, Config), + Dir = filename:join(PrivDir, ?MODULE_STRING++"_symlinks"), + SubDir = filename:join(Dir, "sub"), + AFile = filename:join(SubDir, "a_file"), + Alias = filename:join(Dir, "symlink"), + ok = file:make_dir(Dir), + ok = file:make_dir(SubDir), + ok = file:write_file(AFile, "not that big\n"), + case file:make_symlink(AFile, Alias) of + {error, enotsup} -> + {skip, "Links not supported on this platform"}; + {error, eperm} -> + {win32,_} = os:type(), + {skip, "Windows user not privileged to create symlinks"}; + ok -> + ["sub","symlink"] = + basenames(Dir, filelib:wildcard(filename:join(Dir, "*"))), + ["symlink"] = + basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"))), + ok = file:delete(AFile), + %% The symlink should still be visible even when its target + %% has been deleted. + ["sub","symlink"] = + basenames(Dir, filelib:wildcard(filename:join(Dir, "*"))), + ["symlink"] = + basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"))), + ok + end. + +basenames(Dir, Files) -> + [begin + Dir = filename:dirname(F), + filename:basename(F) + end || F <- Files]. diff --git a/lib/stdlib/test/stdlib_SUITE.erl b/lib/stdlib/test/stdlib_SUITE.erl index 53a34511d9..59821220b4 100644 --- a/lib/stdlib/test/stdlib_SUITE.erl +++ b/lib/stdlib/test/stdlib_SUITE.erl @@ -94,10 +94,10 @@ appup_tests(App,{OkVsns,NokVsns}) -> ok. create_test_vsns(App) -> - This = erlang:system_info(otp_release), - FirstMajor = previous_major(This), + ThisMajor = erlang:system_info(otp_release), + FirstMajor = previous_major(ThisMajor), SecondMajor = previous_major(FirstMajor), - Ok = app_vsn(App,[FirstMajor]), + Ok = app_vsn(App,[ThisMajor,FirstMajor]), Nok0 = app_vsn(App,[SecondMajor]), Nok = case Ok of [Ok1|_] -> @@ -108,9 +108,9 @@ create_test_vsns(App) -> {Ok,Nok}. previous_major("17") -> - "r16"; -previous_major("r"++Rel) -> - "r"++previous_major(Rel); + "r16b"; +previous_major("r16b") -> + "r15b"; previous_major(Rel) -> integer_to_list(list_to_integer(Rel)-1). diff --git a/lib/stdlib/test/tar_SUITE.erl b/lib/stdlib/test/tar_SUITE.erl index 5bc34e35af..6349139925 100644 --- a/lib/stdlib/test/tar_SUITE.erl +++ b/lib/stdlib/test/tar_SUITE.erl @@ -23,7 +23,7 @@ create_long_names/1, bad_tar/1, errors/1, extract_from_binary/1, extract_from_binary_compressed/1, extract_from_open_file/1, symlinks/1, open_add_close/1, cooked_compressed/1, - memory/1]). + memory/1,unicode/1]). -include_lib("test_server/include/test_server.hrl"). -include_lib("kernel/include/file.hrl"). @@ -34,7 +34,7 @@ all() -> [borderline, atomic, long_names, create_long_names, bad_tar, errors, extract_from_binary, extract_from_binary_compressed, extract_from_open_file, - symlinks, open_add_close, cooked_compressed, memory]. + symlinks, open_add_close, cooked_compressed, memory, unicode]. groups() -> []. @@ -73,6 +73,7 @@ borderline(Config) when is_list(Config) -> ?line lists:foreach(fun(Size) -> borderline_test(Size, TempDir) end, [0, 1, 10, 13, 127, 333, Record-1, Record, Record+1, + Block-2*Record-1, Block-2*Record, Block-2*Record+1, Block-Record-1, Block-Record, Block-Record+1, Block-1, Block, Block+1, Block+Record-1, Block+Record, Block+Record+1]), @@ -726,6 +727,56 @@ memory(Config) when is_list(Config) -> ?line ok = delete_files([Name1,Name2]), ok. +%% Test filenames with characters outside the US ASCII range. +unicode(Config) when is_list(Config) -> + PrivDir = ?config(priv_dir, Config), + do_unicode(PrivDir), + case has_transparent_naming() of + true -> + Pa = filename:dirname(code:which(?MODULE)), + Node = start_node(unicode, "+fnl -pa "++Pa), + ok = rpc:call(Node, erlang, apply, + [fun() -> do_unicode(PrivDir) end,[]]), + true = test_server:stop_node(Node), + ok; + false -> + ok + end. + +has_transparent_naming() -> + case os:type() of + {unix,darwin} -> false; + {unix,_} -> true; + _ -> false + end. + +do_unicode(PrivDir) -> + ok = file:set_cwd(PrivDir), + ok = file:make_dir("unicöde"), + + Names = unicode_create_files(), + Tar = "unicöde.tar", + ok = erl_tar:create(Tar, ["unicöde"], []), + {ok,Names} = erl_tar:table(Tar, []), + _ = [ok = file:delete(Name) || Name <- Names], + ok = erl_tar:extract(Tar), + _ = [{ok,_} = file:read_file(Name) || Name <- Names], + _ = [ok = file:delete(Name) || Name <- Names], + ok = file:del_dir("unicöde"), + ok. + +unicode_create_files() -> + FileA = "unicöde/smörgåsbord", + ok = file:write_file(FileA, "yum!\n"), + [FileA|case file:native_name_encoding() of + utf8 -> + FileB = "unicöde/Хороший файл!", + ok = file:write_file(FileB, "But almost empty.\n"), + [FileB]; + latin1 -> + [] + end]. + %% Delete the given list of files. delete_files([]) -> ok; delete_files([Item|Rest]) -> @@ -791,3 +842,14 @@ make_temp_dir(Base, I) -> ok -> Name; {error,eexist} -> make_temp_dir(Base, I+1) end. + +start_node(Name, Args) -> + [_,Host] = string:tokens(atom_to_list(node()), "@"), + ct:log("Trying to start ~w@~s~n", [Name,Host]), + case test_server:start_node(Name, peer, [{args,Args}]) of + {error,Reason} -> + test_server:fail(Reason); + {ok,Node} -> + ct:log("Node ~p started~n", [Node]), + Node + end. |