%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
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%% %CopyrightEnd%
%%
-module(tar_SUITE).
-export([all/1, borderline/1, atomic/1, long_names/1,
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]).
-include("test_server.hrl").
-include_lib("kernel/include/file.hrl").
all(suite) -> [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].
borderline(doc) ->
["Test creating, listing and extracting one file from an archive",
"multiple times with different file sizes. ",
"Also check that the file attributes of the extracted file has survived."];
borderline(Config) when is_list(Config) ->
%% Note: We cannot use absolute paths, because the pathnames will be
%% too long for the limit allowed in tar files (100 characters).
%% Therefore, strip off the current working directory from the front
%% of the private directory path.
?line {ok, Cwd} = file:get_cwd(),
?line RootDir = ?config(priv_dir, Config),
?line TempDir = remove_prefix(Cwd++"/", filename:join(RootDir, borderline)),
?line ok = file:make_dir(TempDir),
?line Record = 512,
?line Block = 20 * Record,
?line lists:foreach(fun(Size) -> borderline_test(Size, TempDir) end,
[0, 1, 10, 13, 127, 333, Record-1, Record, Record+1,
Block-Record-1, Block-Record, Block-Record+1,
Block-1, Block, Block+1,
Block+Record-1, Block+Record, Block+Record+1]),
%% Clean up.
?line delete_files([TempDir]),
ok.
borderline_test(Size, TempDir) ->
?line Archive = filename:join(TempDir, "ar_"++integer_to_list(Size)++".tar"),
?line Name = filename:join(TempDir, "file_"++integer_to_list(Size)),
?line io:format("Testing size ~p", [Size]),
%% Create a file and archive it.
?line {_, _, X0} = erlang:now(),
?line file:write_file(Name, random_byte_list(X0, Size)),
?line ok = erl_tar:create(Archive, [Name]),
?line ok = file:delete(Name),
%% Verify listing and extracting.
?line {ok, [Name]} = erl_tar:table(Archive),
?line ok = erl_tar:extract(Archive, [verbose]),
%% Verify contents of extracted file.
?line {ok, Bin} = file:read_file(Name),
?line true = match_byte_list(X0, binary_to_list(Bin)),
%% Verify that Unix tar can read it.
?line tar_tf(Archive, Name),
ok.
tar_tf(Archive, Name) ->
case os:type() of
{unix, _} ->
tar_tf1(Archive, Name);
_ ->
ok
end.
tar_tf1(Archive, Name) ->
?line Expect = Name ++ "\n",
?line cmd_expect("tar tf " ++ Archive, Expect).
%% We can't use os:cmd/1, because Unix 'tar tf Name' on Solaris never
%% terminates when given an archive of a size it doesn't like.
cmd_expect(Cmd, Expect) ->
?line Port = open_port({spawn, make_cmd(Cmd)}, [stream, in, eof]),
?line get_data(Port, Expect).
get_data(Port, Expect) ->
receive
{Port, {data, Bytes}} ->
?line get_data(Port, match_output(Bytes, Expect, Port));
{Port, eof} ->
Port ! {self(), close},
receive
{Port, closed} ->
true
end,
receive
{'EXIT', Port, _} ->
ok
after 1 -> % force context switch
ok
end,
?line match_output(eof, Expect, Port)
end.
match_output([C|Output], [C|Expect], Port) ->
?line match_output(Output, Expect, Port);
match_output([_|_], [_|_], Port) ->
?line kill_port_and_fail(Port, badmatch);
match_output([X|Output], [], Port) ->
?line kill_port_and_fail(Port, {too_much_data, [X|Output]});
match_output([], Expect, _Port) ->
Expect;
match_output(eof, [], _Port) ->
[];
match_output(eof, _Expect, Port) ->
?line kill_port_and_fail(Port, unexpected_end_of_input).
kill_port_and_fail(Port, Reason) ->
unlink(Port),
exit(Port, die),
test_server:fail(Reason).
make_cmd(Cmd) ->
case os:type() of
{win32, _} -> lists:concat(["cmd /c", Cmd]);
{unix, _} -> lists:concat(["sh -c '", Cmd, "'"])
end.
%% Verifies a random byte list.
match_byte_list(X0, [Byte|Rest]) ->
X = next_random(X0),
case (X bsr 26) band 16#ff of
Byte -> match_byte_list(X, Rest);
_ -> false
end;
match_byte_list(_, []) ->
true.
%% Generates a random byte list.
random_byte_list(X0, Count) ->
random_byte_list(X0, Count, []).
random_byte_list(X0, Count, Result) when Count > 0->
X = next_random(X0),
random_byte_list(X, Count-1, [(X bsr 26) band 16#ff|Result]);
random_byte_list(_X, 0, Result) ->
lists:reverse(Result).
%% This RNG is from line 21 on page 102 in Knuth: The Art of Computer Programming,
%% Volume II, Seminumerical Algorithms.
next_random(X) ->
(X*17059465+1) band 16#fffffffff.
atomic(doc) ->
["Test the 'atomic' operations: create/extract/table, on compressed "
"and uncompressed archives."
"Also test the 'cooked' option."];
atomic(suite) -> [];
atomic(Config) when is_list(Config) ->
?line ok = file:set_cwd(?config(priv_dir, Config)),
?line DataFiles = data_files(),
?line Names = [Name || {Name,_,_} <- DataFiles],
io:format("Names: ~p", [Names]),
%% Create an uncompressed archive. The compressed flag should still be
%% allowed when listing contents or extracting.
?line Tar1 = "uncompressed.tar",
?line erl_tar:create(Tar1, Names, []),
?line {ok, Names} = erl_tar:table(Tar1, []),
?line {ok, Names} = erl_tar:table(Tar1, [compressed]),
?line {ok, Names} = erl_tar:table(Tar1, [cooked]),
?line {ok, Names} = erl_tar:table(Tar1, [compressed,cooked]),
%% Create a compressed archive.
?line Tar2 = "compressed.tar",
?line erl_tar:create(Tar2, Names, [compressed]),
?line {ok, Names} = erl_tar:table(Tar2, [compressed]),
?line {error, Reason} = erl_tar:table(Tar2, []),
?line {ok, Names} = erl_tar:table(Tar2, [compressed,cooked]),
?line {error, Reason} = erl_tar:table(Tar2, [cooked]),
?line ok = io:format("No compressed option: ~p, ~s",
[Reason, erl_tar:format_error(Reason)]),
%% Same test again, but this time created with 'cooked'
?line Tar3 = "uncompressed_cooked.tar",
?line erl_tar:create(Tar3, Names, [cooked]),
?line {ok, Names} = erl_tar:table(Tar3, []),
?line {ok, Names} = erl_tar:table(Tar3, [compressed]),
?line {ok, Names} = erl_tar:table(Tar3, [cooked]),
?line {ok, Names} = erl_tar:table(Tar3, [compressed,cooked]),
?line Tar4 = "compressed_cooked.tar",
?line erl_tar:create(Tar4, Names, [compressed,cooked]),
?line {ok, Names} = erl_tar:table(Tar4, [compressed]),
?line {error, Reason} = erl_tar:table(Tar4, []),
?line {ok, Names} = erl_tar:table(Tar4, [compressed,cooked]),
?line {error, Reason} = erl_tar:table(Tar4, [cooked]),
?line ok = io:format("No compressed option: ~p, ~s",
[Reason, erl_tar:format_error(Reason)]),
%% Clean up.
?line delete_files([Tar1,Tar2,Tar3,Tar4|Names]),
ok.
%% Returns a sequence of characters.
char_seq(N, First) ->
char_seq(N, First, []).
char_seq(0, _, Result) ->
Result;
char_seq(N, C, Result) when C < 127 ->
char_seq(N-1, C+1, [C|Result]);
char_seq(N, _, Result) ->
char_seq(N, $!, Result).
data_files() ->
Files = [{"first_file", 1555, $a},
{"small_file", 7, $d},
{"big_file", 23875, $e},
{"last_file", 7500, $g}],
create_files(Files),
Files.
create_files([{Name, Size, First}|Rest]) ->
ok = file:write_file(Name, char_seq(Size, First)),
create_files(Rest);
create_files([]) ->
ok.
long_names(doc) ->
["Test to extract an Unix tar file containing filenames longer than 100 ",
"characters and empty directories."];
long_names(Config) when is_list(Config) ->
?line DataDir = ?config(data_dir, Config),
?line Long = filename:join(DataDir, "long_names.tar"),
%% Try table/2 and extract/2.
?line case erl_tar:table(Long, [verbose]) of
{ok,List} when is_list(List) ->
?line io:format("~p\n", [List])
end,
%% To avoid getting too long paths for Windows to handle, extract into
%% the current directory (which is the test_server directory). Its path
%% is quite a bit shorter than the path to priv_dir.
?line {ok,Cwd} = file:get_cwd(),
?line ok = erl_tar:extract(Long),
?line Base = filename:join([Cwd, "original_software", "written_by",
"a_bunch_of_hackers",
"spending_all_their_nights",
"still", "not_long_enough",
"but_soon_it_will_be"]),
%% Verify that the empty directory was created.
?line EmptyDir = filename:join(Base, "empty_directory"),
?line {ok, #file_info{type=directory}} = file:read_file_info(EmptyDir),
%% Verify that the files were created.
?line {ok,First} = file:read_file(filename:join(Base, "first_file")),
?line {ok,Second} = file:read_file(filename:join(Base, "second_file")),
?line "Here"++_ = binary_to_list(First),
?line "And"++_ = binary_to_list(Second),
%% Clean up.
?line delete_files([filename:join(Cwd, "original_software"),EmptyDir]),
ok.
create_long_names(doc) ->
["Creates a tar file from a deep directory structure (filenames are ",
"longer than 100 characters)."];
create_long_names(Config) when is_list(Config) ->
?line PrivDir = ?config(priv_dir, Config),
?line ok = file:set_cwd(PrivDir),
Dirs = [aslfjkshjkhliuf,
asdhjfehnbfsky,
sahajfskdfhsz,
asldfkdlfy4y8rchg,
f7nafhjgffagkhsfkhsjk,
dfjasldkfjsdkfjashbv],
?line DeepDir = make_dirs(Dirs, []),
?line AFile = filename:join(DeepDir, "a_file"),
?line Hello = "hello, world\n",
?line ok = file:write_file(AFile, Hello),
?line TarName = filename:join(PrivDir, "my_tar_with_long_names.tar"),
?line ok = erl_tar:create(TarName, [AFile]),
%% Print contents.
?line ok = erl_tar:tt(TarName),
%% Extract and verify.
?line ExtractDir = "extract_dir",
?line ok = file:make_dir(ExtractDir),
?line ok = erl_tar:extract(TarName, [{cwd,ExtractDir}]),
?line {ok, Bin} = file:read_file(filename:join(ExtractDir, AFile)),
?line Hello = binary_to_list(Bin),
%% Clean up.
?line delete_files([ExtractDir,TarName,hd(Dirs)]),
ok.
make_dirs([Dir|Rest], []) ->
?line ok = file:make_dir(Dir),
?line make_dirs(Rest, Dir);
make_dirs([Dir|Rest], Parent) ->
?line Name = filename:join(Parent, Dir),
?line ok = file:make_dir(Name),
?line make_dirs(Rest, Name);
make_dirs([], Dir) ->
Dir.
bad_tar(doc) ->
["Try erl_tar:table/2 and erl_tar:extract/2 on some corrupted tar files."];
bad_tar(Config) when is_list(Config) ->
?line try_bad("bad_checksum", bad_header, Config),
?line try_bad("bad_octal", bad_header, Config),
?line try_bad("bad_too_short", eof, Config),
?line try_bad("bad_even_shorter", eof, Config),
ok.
try_bad(Name0, Reason, Config) ->
%% Intentionally no ?line macros here.
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
Name = Name0 ++ ".tar",
io:format("~nTrying ~s", [Name]),
Full = filename:join(DataDir, Name),
Opts = [verbose, {cwd, PrivDir}],
Expected = {error, Reason},
case {erl_tar:table(Full, Opts), erl_tar:extract(Full, Opts)} of
{Expected, Expected} ->
io:format("Result: ~p", [Expected]),
case catch erl_tar:format_error(Reason) of
{'EXIT', CrashReason} ->
test_server:fail({format_error, crashed, CrashReason});
String when is_list(String) ->
io:format("format_error(~p) -> ~s", [Reason, String]);
Other ->
test_server:fail({format_error, returned, Other})
end;
{Other1, Other2} ->
io:format("table/2 returned ~p", [Other1]),
io:format("extract/2 returned ~p", [Other2]),
test_server:fail({bad_return_value, Other1, Other2})
end.
errors(doc) ->
["Tests that some common errors return correct error codes ",
"and that format_error/1 handles them correctly."];
errors(Config) when is_list(Config) ->
?line PrivDir = ?config(priv_dir, Config),
%% Give the tar file the same name as a directory.
?line BadTar = filename:join(PrivDir, "bad_tarfile.tar"),
?line ok = file:make_dir(BadTar),
?line try_error(erl_tar, create, [BadTar, []], {BadTar, eisdir}),
%% Try including non-existent files in the tar file.
?line NonExistent = "non_existent_file",
?line GoodTar = filename:join(PrivDir, "a_good_tarfile.tar"),
?line try_error(erl_tar, create, [GoodTar, [NonExistent]],
{NonExistent, enoent}),
%% Clean up.
?line delete_files([GoodTar,BadTar]),
ok.
try_error(M, F, A, Error) ->
io:format("Trying ~p:~p(~p)", [M, F, A]),
case catch apply(M, F, A) of
{'EXIT', Reason} ->
exit(Reason);
ok ->
test_server:fail(unexpected_success);
{error, Error} ->
case catch erl_tar:format_error(Error) of
{'EXIT', FReason} ->
test_server:fail({format_error, crashed, FReason});
String when is_list(String) ->
io:format("format_error(~p) -> ~s", [Error, String]);
Other ->
test_server:fail({format_error, returned, Other})
end;
Other ->
test_server:fail({expected, {error, Error}, actual, Other})
end.
%% remove_prefix(Prefix, List) -> ListWithoutPrefix.
remove_prefix([C|Rest1], [C|Rest2]) ->
remove_prefix(Rest1, Rest2);
remove_prefix(_, Result) ->
Result.
extract_from_binary(doc) ->
"Test extracting a tar archive from a binary.";
extract_from_binary(Config) when is_list(Config) ->
?line DataDir = ?config(data_dir, Config),
?line PrivDir = ?config(priv_dir, Config),
?line Long = filename:join(DataDir, "no_fancy_stuff.tar"),
?line ExtractDir = filename:join(PrivDir, "extract_from_binary"),
?line ok = file:make_dir(ExtractDir),
%% Read a tar file into a binary and extract from the binary.
?line {ok, Bin} = file:read_file(Long),
?line ok = erl_tar:extract({binary, Bin}, [{cwd,ExtractDir}]),
%% Verify.
Dir = filename:join(ExtractDir, "no_fancy_stuff"),
?line true = filelib:is_dir(Dir),
?line true = filelib:is_file(filename:join(Dir, "a_dir_list")),
?line true = filelib:is_file(filename:join(Dir, "EPLICENCE")),
%% Clean up.
?line delete_files([ExtractDir]),
ok.
extract_from_binary_compressed(Config) when is_list(Config) ->
%% Test extracting a compressed tar archive from a binary.
?line DataDir = ?config(data_dir, Config),
?line PrivDir = ?config(priv_dir, Config),
?line Name = filename:join(DataDir, "cooked_tar_problem.tar.gz"),
?line ExtractDir = filename:join(PrivDir, "extract_from_binary_compressed"),
?line ok = file:make_dir(ExtractDir),
?line {ok,Bin} = file:read_file(Name),
%% Try taking contents.
?line {ok,Files} = erl_tar:table({binary,Bin}, [compressed]),
?line io:format("~p\n", [Files]),
?line 19 = length(Files),
%% Trying extracting from a binary.
?line ok = erl_tar:extract({binary,Bin}, [compressed,{cwd,ExtractDir}]),
?line {ok,List} = file:list_dir(filename:join(ExtractDir, ddll_SUITE_data)),
?line io:format("~p\n", [List]),
?line 19 = length(List),
%% Clean up while at the same time testing that all file
%% were extracted as expected.
lists:foreach(fun(N) ->
File = filename:join(ExtractDir, N),
io:format("Deleting: ~p\n", [File]),
?line ok = file:delete(File)
end, Files),
%% Clean up the rest.
?line delete_files([ExtractDir]),
ok.
extract_from_open_file(doc) ->
"Test extracting a tar archive from an open file.";
extract_from_open_file(Config) when is_list(Config) ->
?line DataDir = ?config(data_dir, Config),
?line PrivDir = ?config(priv_dir, Config),
?line Long = filename:join(DataDir, "no_fancy_stuff.tar"),
?line ExtractDir = filename:join(PrivDir, "extract_from_open_file"),
?line ok = file:make_dir(ExtractDir),
?line {ok, File} = file:open(Long, [read]),
?line ok = erl_tar:extract({file, File}, [{cwd,ExtractDir}]),
%% Verify.
Dir = filename:join(ExtractDir, "no_fancy_stuff"),
?line true = filelib:is_dir(Dir),
?line true = filelib:is_file(filename:join(Dir, "a_dir_list")),
?line true = filelib:is_file(filename:join(Dir, "EPLICENCE")),
%% Close open file.
?line ok = file:close(File),
%% Clean up.
?line delete_files([ExtractDir]),
ok.
symlinks(doc) ->
"Test that archives containing symlinks can be created and extracted.";
symlinks(Config) when is_list(Config) ->
?line PrivDir = ?config(priv_dir, Config),
?line Dir = filename:join(PrivDir, "symlinks"),
?line ok = file:make_dir(Dir),
?line ABadSymlink = filename:join(Dir, "bad_symlink"),
?line PointsTo = "/a/definitely/non_existing/path",
?line Res = case file:make_symlink("/a/definitely/non_existing/path", ABadSymlink) of
{error, enotsup} ->
{skip, "Symbolic links not supported on this platform"};
ok ->
symlinks(Dir, "bad_symlink", PointsTo),
long_symlink(Dir)
end,
%% Clean up.
?line delete_files([Dir]),
Res.
symlinks(Dir, BadSymlink, PointsTo) ->
?line Tar = filename:join(Dir, "symlink.tar"),
?line DerefTar = filename:join(Dir, "dereference.tar"),
%% Create the archive.
?line ok = file:set_cwd(Dir),
?line GoodSymlink = "good_symlink",
?line AFile = "a_good_file",
?line ALine = "A line of text for a file.",
?line ok = file:write_file(AFile, ALine),
?line ok = file:make_symlink(AFile, GoodSymlink),
?line ok = erl_tar:create(Tar, [BadSymlink, GoodSymlink, AFile], [verbose]),
%% List contents of tar file.
?line ok = erl_tar:tt(Tar),
%% Also create another archive with the dereference flag.
?line ok = erl_tar:create(DerefTar, [AFile, GoodSymlink], [dereference, verbose]),
%% Extract files to a new directory.
?line NewDir = filename:join(Dir, "extracted"),
?line ok = file:make_dir(NewDir),
?line ok = erl_tar:extract(Tar, [{cwd, NewDir}, verbose]),
%% Verify that the files are there.
?line ok = file:set_cwd(NewDir),
?line {ok, #file_info{type=symlink}} = file:read_link_info(BadSymlink),
?line {ok, PointsTo} = file:read_link(BadSymlink),
?line {ok, #file_info{type=symlink}} = file:read_link_info(GoodSymlink),
?line {ok, AFile} = file:read_link(GoodSymlink),
?line Expected = list_to_binary(ALine),
?line {ok, Expected} = file:read_file(GoodSymlink),
%% Extract the "dereferenced archive" to a new directory.
?line NewDirDeref = filename:join(Dir, "extracted_deref"),
?line ok = file:make_dir(NewDirDeref),
?line ok = erl_tar:extract(DerefTar, [{cwd, NewDirDeref}, verbose]),
%% Verify that the files are there.
?line ok = file:set_cwd(NewDirDeref),
?line {ok, #file_info{type=regular}} = file:read_link_info(GoodSymlink),
?line {ok, #file_info{type=regular}} = file:read_link_info(AFile),
?line {ok, Expected} = file:read_file(GoodSymlink),
?line {ok, Expected} = file:read_file(AFile),
ok.
long_symlink(Dir) ->
?line Tar = filename:join(Dir, "long_symlink.tar"),
?line ok = file:set_cwd(Dir),
?line AFile = "long_symlink",
?line FarTooLong = "/tmp/aarrghh/this/path/is/far/longer/than/one/hundred/characters/which/is/the/maximum/number/of/characters/allowed",
?line ok = file:make_symlink(FarTooLong, AFile),
?line {error,Error} = erl_tar:create(Tar, [AFile], [verbose]),
?line io:format("Error: ~s\n", [erl_tar:format_error(Error)]),
?line {FarTooLong,symbolic_link_too_long} = Error,
ok.
open_add_close(Config) when is_list(Config) ->
?line PrivDir = ?config(priv_dir, Config),
?line ok = file:set_cwd(PrivDir),
?line Dir = filename:join(PrivDir, "open_add_close"),
?line ok = file:make_dir(Dir),
?line [{FileOne,_,_},{FileTwo,_,_},{FileThree,_,_}] = oac_files(),
?line ADir = "empty_dir",
?line AnotherDir = "another_dir",
?line SomeContent = filename:join(AnotherDir, "some_content"),
?line ok = file:make_dir(ADir),
?line ok = file:make_dir(AnotherDir),
?line ok = file:make_dir(SomeContent),
?line TarOne = filename:join(Dir, "archive1.tar"),
?line {ok,AD} = erl_tar:open(TarOne, [write]),
?line ok = erl_tar:add(AD, FileOne, []),
?line ok = erl_tar:add(AD, FileTwo, "second file", []),
?line ok = erl_tar:add(AD, FileThree, [verbose]),
?line ok = erl_tar:add(AD, ADir, [verbose]),
?line ok = erl_tar:add(AD, AnotherDir, [verbose]),
?line ok = erl_tar:close(AD),
?line ok = erl_tar:t(TarOne),
?line ok = erl_tar:tt(TarOne),
?line {ok,[FileOne,"second file",FileThree,ADir,SomeContent]} = erl_tar:table(TarOne),
?line delete_files(["oac_file","oac_small","oac_big",Dir,AnotherDir,ADir]),
ok.
oac_files() ->
Files = [{"oac_file", 1459, $x},
{"oac_small", 99, $w},
{"oac_big", 33896, $A}],
create_files(Files),
Files.
cooked_compressed(Config) when is_list(Config) ->
%% Test that a compressed archive can be read in cooked mode.
?line DataDir = ?config(data_dir, Config),
?line PrivDir = ?config(priv_dir, Config),
?line Name = filename:join(DataDir, "cooked_tar_problem.tar.gz"),
%% Try table/2 and extract/2.
?line {ok,List} = erl_tar:table(Name, [cooked,compressed]),
?line io:format("~p\n", [List]),
?line 19 = length(List),
?line ok = erl_tar:extract(Name, [cooked,compressed,{cwd,PrivDir}]),
%% Clean up while at the same time testing that all file
%% were extracted as expected.
lists:foreach(fun(N) ->
File = filename:join(PrivDir, N),
io:format("Deleting: ~p\n", [File]),
?line ok = file:delete(File)
end, List),
%% Clean up.
?line delete_files([filename:join(PrivDir, ddll_SUITE_data)]),
ok.
memory(doc) ->
["Test that an archive can be created directly from binaries and "
"that an archive can be extracted into binaries."];
memory(Config) when is_list(Config) ->
?line DataDir = ?config(data_dir, Config),
?line FileBins = [{"bar/fum", <<"BARFUM">>},{"foo", <<"FOO">>}],
?line Name1 = filename:join(DataDir, "memory.tar"),
?line ok = erl_tar:create(Name1, FileBins, [write,verbose]),
?line {ok,Extracted1} = erl_tar:extract(Name1, [memory,verbose]),
?line FileBins1 = lists:sort(Extracted1),
?line io:format("FileBins: ~p\n", [FileBins]),
?line io:format("FileBins1: ~p\n", [FileBins1]),
?line FileBins = FileBins1,
?line Name2 = filename:join(DataDir, "memory2.tar"),
?line {ok,Fd} = erl_tar:open(Name2, [write]),
?line [ok,ok] = [erl_tar:add(Fd, B, N, [write,verbose]) || {N,B} <- FileBins],
?line ok = erl_tar:close(Fd),
?line {ok,Extracted2} = erl_tar:extract(Name2, [memory,verbose]),
?line FileBins2 = lists:sort(Extracted2),
?line io:format("FileBins2: ~p\n", [FileBins2]),
?line FileBins = FileBins2,
%% Clean up.
?line ok = delete_files([Name1,Name2]),
ok.
%% Delete the given list of files.
delete_files([]) -> ok;
delete_files([Item|Rest]) ->
case file:delete(Item) of
ok ->
delete_files(Rest);
{error,eperm} ->
file:change_mode(Item, 8#777),
delete_files(filelib:wildcard(filename:join(Item, "*"))),
file:del_dir(Item),
ok;
{error,eacces} ->
%% We'll see about that!
file:change_mode(Item, 8#777),
case file:delete(Item) of
ok -> ok;
{error,_} ->
erlang:yield(),
file:change_mode(Item, 8#777),
file:delete(Item),
ok
end;
{error,_} -> ok
end,
delete_files(Rest).
