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authorHåkan Mattsson <[email protected]>2010-03-01 19:53:48 +0100
committerHåkan Mattsson <[email protected]>2010-03-16 14:19:52 +0100
commita20eb61c2fdd027a89acd249eea4f452e4accfb8 (patch)
tree36bc91108ec680200efad550e296f6faf8b21906 /lib/stdlib
parent1e2ecf8c492b6d499880b8676e3c1fe0c5793103 (diff)
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Add function zip:foldl/3 to iterate over zip archives
This is the public interface of prim_zip:open/3, which has been used in earlier releases by both erl_prim_loader and escript. The new function can be used as a replacement for the undocumented function escript:foldl/3 that is likely to be removed without further notice. The error handling of prim_zip:open/3 (and prim_zip:foldl/3) has been improved in order to better suite a public interface. For example it could happen that a file or a zlib port could be left open in some errors cases. The documentation of the FileSpec parameter to zip:create/3 has been updated to show that file info can be explicitly specified. A FileSpec may contain {Filename, binary(), #file_info{}} elements. The function zip:create/3 was already prepared to partly support this, but now after a few minor fixes it is fully supported.
Diffstat (limited to 'lib/stdlib')
-rw-r--r--lib/stdlib/doc/src/zip.xml90
-rw-r--r--lib/stdlib/src/zip.erl80
-rw-r--r--lib/stdlib/test/zip_SUITE.erl78
3 files changed, 186 insertions, 62 deletions
diff --git a/lib/stdlib/doc/src/zip.xml b/lib/stdlib/doc/src/zip.xml
index af407f1925..4d98a20206 100644
--- a/lib/stdlib/doc/src/zip.xml
+++ b/lib/stdlib/doc/src/zip.xml
@@ -42,16 +42,18 @@
<p>By convention, the name of a zip file should end in "<c>.zip</c>".
To abide to the convention, you'll need to add "<c>.zip</c>" yourself
to the name.</p>
- <p>Zip archives are created with the
- <seealso marker="#zip_2">zip/2</seealso> or the
+ <p>Zip archives are created with the
+ <seealso marker="#zip_2">zip/2</seealso> or the
<seealso marker="#zip_2">zip/3</seealso> function. (They are
also available as <c>create</c>, to resemble the <c>erl_tar</c>
module.)</p>
- <p>To extract files from a zip archive, use the
- <seealso marker="#unzip_1">unzip/1</seealso> or the
+ <p>To extract files from a zip archive, use the
+ <seealso marker="#unzip_1">unzip/1</seealso> or the
<seealso marker="#unzip_2">unzip/2</seealso> function. (They are
also available as <c>extract</c>.)</p>
- <p>To return a list of the files in a zip archive, use the
+ <p>To fold a function over all files in a zip archive, use the
+ <seealso marker="#foldl_3">foldl_3</seealso>.</p>
+ <p>To return a list of the files in a zip archive, use the
<seealso marker="#list_dir_1">list_dir/1</seealso> or the
<seealso marker="#list_dir_2">list_dir/2</seealso> function. (They
are also available as <c>table</c>.)</p>
@@ -132,7 +134,7 @@ zip_file() </code>
<type>
<v>Name = filename()</v>
<v>FileList = [FileSpec]</v>
- <v>FileSpec = filename() | {filename(), binary()}</v>
+ <v>FileSpec = filename() | {filename(), binary()} | {filename(), binary(), #file_info{}}</v>
<v>Options = [Option]</v>
<v>Option = memory | cooked | verbose | {comment, Comment} | {cwd, CWD} | {compress, What} | {uncompress, What}</v>
<v>What = all | [Extension] | {add, [Extension]} | {del, [Extension]}</v>
@@ -212,16 +214,16 @@ zip_file() </code>
<taglist>
<tag><c>all</c></tag>
<item><p> means that all files will be compressed (as long
- as they pass the <c>uncompress</c> condition).</p></item>
+ as they pass the <c>uncompress</c> condition).</p></item>
<tag><c>[Extension]</c></tag>
<item><p>means that only files with exactly these extensions
- will be compressed.</p></item>
+ will be compressed.</p></item>
<tag><c>{add,[Extension]}</c></tag>
<item><p>adds these extensions to the list of compress
- extensions.</p></item>
+ extensions.</p></item>
<tag><c>{del,[Extension]}</c></tag>
<item><p>deletes these extensions from the list of compress
- extensions.</p></item>
+ extensions.</p></item>
</taglist>
</item>
<tag><c>{uncompress, What}</c></tag>
@@ -231,16 +233,16 @@ zip_file() </code>
The following values of <c>What</c> are allowed:</p>
<taglist>
<tag><c>all</c></tag>
- <item><p> means that no files will be compressed.</p></item>
+ <item><p> means that no files will be compressed.</p></item>
<tag><c>[Extension]</c></tag>
<item><p>means that files with these extensions will be
- uncompressed.</p></item>
+ uncompressed.</p></item>
<tag><c>{add,[Extension]}</c></tag>
<item><p>adds these extensions to the list of uncompress
- extensions.</p></item>
+ extensions.</p></item>
<tag><c>{del,[Extension]}</c></tag>
<item><p>deletes these extensions from the list of uncompress
- extensions.</p></item>
+ extensions.</p></item>
</taglist>
</item>
</taglist>
@@ -283,7 +285,7 @@ zip_file() </code>
the <c>unzip/2</c> function will only extract the files
whose names are included in <c>FileList</c>. The full
paths, including the names of all sub directories within
- the zip archive, must be specified.</p>
+ the zip archive, must be specified.</p>
</item>
<tag><c>cooked</c></tag>
<item>
@@ -327,6 +329,64 @@ zip_file() </code>
</desc>
</func>
<func>
+ <name>foldl(Fun, Acc0, Archive) -> {ok, Acc1} | {error, Reason}</name>
+ <fsummary>Fold a function over all files in a zip archive</fsummary>
+ <type>
+ <v>Fun = fun(FileInArchive, GetInfo, GetBin, AccIn) -> AccOut</v>
+ <v>FileInArchive = filename()</v>
+ <v>GetInfo = fun() -> #file_info{}</v>
+ <v>GetBin = fun() -> binary()</v>
+ <v>Acc0 = Acc1 = AccIn = AccOut = term()</v>
+ <v>Archive = filename() | {filename(), binary()}</v>
+ </type>
+ <desc>
+ <p>The <marker id="foldl_3"></marker> <c>foldl/3</c> function
+ calls <c>Fun(FileInArchive, GetInfo, GetBin, AccIn)</c> on
+ successive files in the <c>Archive</c>, starting with <c>AccIn
+ == Acc0</c>. <c>FileInArchive</c> is the name that the file
+ has in the archive. <c>GetInfo</c> is a fun that returns info
+ about the the file. <c>GetBin</c> returns the contents of the
+ file. Both <c>GetInfo</c> and <c>GetBin</c> must be called
+ within the <c>Fun</c>. Their behavior is undefined if they are
+ called outside the context of the <c>Fun</c>. The <c>Fun</c>
+ must return a new accumulator which is passed to the next
+ call. <c>foldl/3</c> returns the final value of the
+ accumulator. <c>Acc0</c> is returned if the archive is
+ empty. It is not necessary to iterate over all files in the
+ archive. The iteration may be ended prematurely in a
+ controlled manner by throwing an exception.</p>
+
+ <p>For example:</p>
+ <pre>
+&gt; <input>Name = "dummy.zip".</input>
+"dummy.zip"
+&gt; <input>{ok, {Name, Bin}} = zip:create(Name, [{"foo", &lt;&lt;"FOO"&gt;&gt;}, {"bar", &lt;&lt;"BAR"&gt;&gt;}], [memory]).</input>
+{ok,{"dummy.zip",
+ &lt;&lt;80,75,3,4,20,0,0,0,0,0,74,152,97,60,171,39,212,26,3,0,
+ 0,0,3,0,0,...&gt;&gt;}}
+&gt; <input>{ok, FileSpec} = zip:foldl(fun(N, I, B, Acc) -> [{N, B(), I()} | Acc] end, [], {Name, Bin}).</input>
+{ok,[{"bar",&lt;&lt;"BAR"&gt;&gt;,
+ {file_info,3,regular,read_write,
+ {{2010,3,1},{19,2,10}},
+ {{2010,3,1},{19,2,10}},
+ {{2010,3,1},{19,2,10}},
+ 54,1,0,0,0,0,0}},
+ {"foo",&lt;&lt;"FOO"&gt;&gt;,
+ {file_info,3,regular,read_write,
+ {{2010,3,1},{19,2,10}},
+ {{2010,3,1},{19,2,10}},
+ {{2010,3,1},{19,2,10}},
+ 54,1,0,0,0,0,0}}]}
+&gt; <input>{ok, {Name, Bin}} = zip:create(Name, lists:reverse(FileSpec), [memory]).</input>
+{ok,{"dummy.zip",
+ &lt;&lt;80,75,3,4,20,0,0,0,0,0,74,152,97,60,171,39,212,26,3,0,
+ 0,0,3,0,0,...&gt;&gt;}}
+&gt; <input>catch zip:foldl(fun("foo", _, B, _) -> throw(B()); (_, _, _, Acc) -> Acc end, [], {Name, Bin}). </input>
+&lt;&lt;"FOO"&gt;&gt;
+</pre>
+ </desc>
+ </func>
+ <func>
<name>list_dir(Archive) -> RetValue</name>
<name>list_dir(Archive, Options)</name>
<name>table(Archive) -> RetValue</name>
diff --git a/lib/stdlib/src/zip.erl b/lib/stdlib/src/zip.erl
index e76d588cb5..d41aeefa59 100644
--- a/lib/stdlib/src/zip.erl
+++ b/lib/stdlib/src/zip.erl
@@ -20,7 +20,7 @@
%% Basic api
-export([unzip/1, unzip/2, extract/1, extract/2,
- zip/2, zip/3, create/2, create/3,
+ zip/2, zip/3, create/2, create/3, foldl/3,
list_dir/1, list_dir/2, table/1, table/2,
t/1, tt/1]).
@@ -38,7 +38,7 @@
zip_t/1, zip_tt/1,
zip_list_dir/1, zip_list_dir/2,
zip_close/1]).
-
+
%% just for debugging zip server, not documented, not tested, not to be used
-export([zip_get_state/1]).
@@ -82,7 +82,7 @@
-record(openzip_opts, {
output, % output object (fun)
open_opts, % file:open options
- cwd % directory to relate paths to
+ cwd % directory to relate paths to
}).
% openzip record, state for an open zip-file
@@ -93,10 +93,10 @@
input, % archive io object (fun)
output, % output io object (fun)
zlib, % handle to open zlib
- cwd % directory to relate paths to
+ cwd % directory to relate paths to
}).
-% Things that I would like to add to the public record #zip_file,
+% Things that I would like to add to the public record #zip_file,
% but can't as it would make things fail at upgrade.
% Instead we use {#zip_file,#zip_file_extra} internally.
-record(zip_file_extra, {
@@ -278,7 +278,7 @@ file_name_search(Name,Files) ->
[ZFile|_] -> ZFile;
[] -> false
end.
-
+
%% %% add a file to an open archive
%% openzip_add(File, OpenZip) ->
%% case ?CATCH do_openzip_add(File, OpenZip) of
@@ -344,6 +344,25 @@ do_unzip(F, Options) ->
Input(close, In1),
{ok, Files}.
+%% Iterate over all files in a zip archive
+foldl(Fun, Acc0, Archive) when is_function(Fun, 4) ->
+ ZipFun =
+ fun({Name, GetInfo, GetBin}, A) ->
+ A2 = Fun(Name, GetInfo, GetBin, A),
+ {true, false, A2}
+ end,
+ case prim_zip:open(ZipFun, Acc0, Archive) of
+ {ok, PrimZip, Acc1} ->
+ ok = prim_zip:close(PrimZip),
+ {ok, Acc1};
+ {error, bad_eocd} ->
+ {error, "Not an archive file"};
+ {error, Reason} ->
+ {error, Reason}
+ end;
+foldl(_,_, _) ->
+ {error, einval}.
+
%% Create zip archive name F from Files or binaries
%%
%% Accepted options:
@@ -383,7 +402,7 @@ list_dir(F, Options) ->
do_list_dir(F, Options) ->
Opts = get_list_dir_options(F, Options),
- #list_dir_opts{input = Input, open_opts = OpO,
+ #list_dir_opts{input = Input, open_opts = OpO,
raw_iterator = RawIterator} = Opts,
In0 = Input({open, F, OpO}, []),
{Info, In1} = get_central_dir(In0, RawIterator, Input),
@@ -417,7 +436,7 @@ tt(F) when is_record(F, openzip) -> openzip_tt(F);
tt(F) -> t(F, fun raw_long_print_info_etc/5).
-%% option utils
+%% option utils
get_unzip_opt([], Opts) ->
Opts;
get_unzip_opt([verbose | Rest], Opts) ->
@@ -470,7 +489,7 @@ get_zip_opt([{cwd, CWD} | Rest], Opts) ->
get_zip_opt([{comment, C} | Rest], Opts) ->
get_zip_opt(Rest, Opts#zip_opts{comment = C});
get_zip_opt([{compress, Which} = O| Rest], Opts) ->
- Which2 =
+ Which2 =
case Which of
all ->
all;
@@ -485,7 +504,7 @@ get_zip_opt([{compress, Which} = O| Rest], Opts) ->
end,
get_zip_opt(Rest, Opts#zip_opts{compress = Which2});
get_zip_opt([{uncompress, Which} = O| Rest], Opts) ->
- Which2 =
+ Which2 =
case Which of
all ->
all;
@@ -560,16 +579,24 @@ get_openzip_options(Options) ->
get_input(F) when is_binary(F) ->
fun binary_io/2;
get_input(F) when is_list(F) ->
- fun file_io/2.
+ fun file_io/2;
+get_input(_) ->
+ throw(einval).
get_zip_input({F, B}) when is_binary(B), is_list(F) ->
fun binary_io/2;
+get_zip_input({F, B, #file_info{}}) when is_binary(B), is_list(F) ->
+ fun binary_io/2;
+get_zip_input({F, #file_info{}, B}) when is_binary(B), is_list(F) ->
+ fun binary_io/2;
get_zip_input(F) when is_list(F) ->
fun file_io/2;
get_zip_input({files, []}) ->
fun binary_io/2;
get_zip_input({files, [File | _]}) ->
- get_zip_input(File).
+ get_zip_input(File);
+get_zip_input(_) ->
+ throw(einval).
get_list_dir_options(F, Options) ->
Opts = #list_dir_opts{raw_iterator = fun raw_file_info_public/5,
@@ -620,6 +647,8 @@ put_eocd(N, Pos, Sz, Comment, Output, Out0) ->
get_filename({Name, _}, Type) ->
get_filename(Name, Type);
+get_filename({Name, _, _}, Type) ->
+ get_filename(Name, Type);
get_filename(Name, regular) ->
Name;
get_filename(Name, directory) ->
@@ -895,7 +924,7 @@ local_file_header_to_bin(
CompSize:32/little,
UncompSize:32/little,
FileNameLength:16/little,
- ExtraFieldLength:16/little>>.
+ ExtraFieldLength:16/little>>.
eocd_to_bin(#eocd{disk_num = DiskNum,
start_disk_num = StartDiskNum,
@@ -912,7 +941,7 @@ eocd_to_bin(#eocd{disk_num = DiskNum,
Offset:32/little,
ZipCommentLength:16/little>>.
-%% put together a local file header
+%% put together a local file header
local_file_header_from_info_method_name(#file_info{mtime = MTime},
UncompSize,
CompMethod, Name) ->
@@ -939,7 +968,7 @@ server_loop(OpenZip) ->
server_loop(NewOpenZip);
Error ->
From ! {self(), Error}
- end;
+ end;
{From, close} ->
From ! {self(), openzip_close(OpenZip)};
{From, get} ->
@@ -1024,7 +1053,7 @@ lists_foreach(F, [Hd|Tl]) ->
F(Hd),
lists_foreach(F, Tl).
-%% option utils
+%% option utils
get_openzip_opt([], Opts) ->
Opts;
get_openzip_opt([cooked | Rest], #openzip_opts{open_opts = OO} = Opts) ->
@@ -1121,7 +1150,7 @@ raw_file_info_public(CD, FileName, FileComment, BExtraField, Acc0) ->
Other -> Other
end,
[H2|T].
-
+
%% make a file_info from a central directory header
cd_file_header_to_file_info(FileName,
@@ -1213,8 +1242,8 @@ get_z_file(In0, Z, Input, Output, OpO, FB, CWD, {ZipFile,Extra}) ->
{dir, In3};
_ ->
%% FileInfo = local_file_header_to_file_info(LH)
- %%{Out, In4, CRC, UncompSize} =
- {Out, In4, CRC, _UncompSize} =
+ %%{Out, In4, CRC, UncompSize} =
+ {Out, In4, CRC, _UncompSize} =
get_z_data(CompMethod, In3, FileName1,
CompSize, Input, Output, OpO, Z),
In5 = skip_z_data_descriptor(GPFlag, Input, In4),
@@ -1280,7 +1309,7 @@ get_z_data_loop(CompSize, UncompSize, In0, Out0, Input, Output, Z) ->
Out1 = Output({write, Uncompressed}, Out0),
get_z_data_loop(CompSize-N, UncompSize + iolist_size(Uncompressed),
In1, Out1, Input, Output, Z)
- end.
+ end.
%% skip data descriptor if any
@@ -1298,7 +1327,7 @@ dos_date_time_to_datetime(DosDate, DosTime) ->
<<Hour:5, Min:6, Sec:5>> = <<DosTime:16>>,
<<YearFrom1980:7, Month:4, Day:5>> = <<DosDate:16>>,
{{YearFrom1980+1980, Month, Day},
- {Hour, Min, Sec}}.
+ {Hour, Min, Sec}}.
dos_date_time_from_datetime({{Year, Month, Day}, {Hour, Min, Sec}}) ->
YearFrom1980 = Year-1980,
@@ -1319,7 +1348,6 @@ unix_extra_field_and_var_from_bin(<<TSize:16/little,
Var};
unix_extra_field_and_var_from_bin(_) ->
throw(bad_unix_extra_field).
-
%% A pwrite-like function for iolists (used by memory-option)
@@ -1478,6 +1506,8 @@ local_file_header_from_bin(_) ->
%% io functions
binary_io({file_info, {_Filename, _B, #file_info{} = FI}}, _A) ->
FI;
+binary_io({file_info, {_Filename, #file_info{} = FI, _B}}, _A) ->
+ FI;
binary_io({file_info, {_Filename, B}}, A) ->
binary_io({file_info, B}, A);
binary_io({file_info, B}, _) ->
@@ -1493,9 +1523,11 @@ binary_io({file_info, B}, _) ->
links = 1, major_device = 0,
minor_device = 0, inode = 0,
uid = 0, gid = 0};
-binary_io({open, {_Filename, B, _FI}, _Opts}, _) ->
+binary_io({open, {_Filename, B, _FI}, _Opts}, _) when is_binary(B) ->
+ {0, B};
+binary_io({open, {_Filename, _FI, B}, _Opts}, _) when is_binary(B) ->
{0, B};
-binary_io({open, {_Filename, B}, _Opts}, _) ->
+binary_io({open, {_Filename, B}, _Opts}, _) when is_binary(B) ->
{0, B};
binary_io({open, B, _Opts}, _) when is_binary(B) ->
{0, B};
diff --git a/lib/stdlib/test/zip_SUITE.erl b/lib/stdlib/test/zip_SUITE.erl
index 12ca655000..48b14396c1 100644
--- a/lib/stdlib/test/zip_SUITE.erl
+++ b/lib/stdlib/test/zip_SUITE.erl
@@ -18,12 +18,13 @@
%%
-module(zip_SUITE).
--export([all/1, borderline/1, atomic/1,
+-export([all/1, borderline/1, atomic/1,
bad_zip/1, unzip_from_binary/1, unzip_to_binary/1,
zip_to_binary/1,
unzip_options/1, zip_options/1, list_dir_options/1, aliases/1,
openzip_api/1, zip_api/1, unzip_jar/1,
- compress_control/1]).
+ compress_control/1,
+ foldl/1]).
-include("test_server.hrl").
-include("test_server_line.hrl").
@@ -35,7 +36,8 @@ all(suite) -> [borderline, atomic, bad_zip,
zip_to_binary,
unzip_options, zip_options, list_dir_options, aliases,
openzip_api, zip_api, unzip_jar,
- compress_control].
+ compress_control,
+ foldl].
borderline(doc) ->
["Test creating, listing and extracting one file from an archive "
@@ -110,17 +112,17 @@ get_data(Port, Expect) ->
{Port, {data, Bytes}} ->
get_data(Port, match_output(Bytes, Expect, Port));
{Port, eof} ->
- Port ! {self(), close},
+ Port ! {self(), close},
receive
{Port, closed} ->
true
- end,
+ end,
receive
- {'EXIT', Port, _} ->
+ {'EXIT', Port, _} ->
ok
after 1 -> % force context switch
ok
- end,
+ end,
match_output(eof, Expect, Port)
end.
@@ -290,7 +292,7 @@ unzip_options(Config) when is_list(Config) ->
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
Long = filename:join(DataDir, "abc.zip"),
-
+
%% create a temp directory
Subdir = filename:join(PrivDir, "t"),
ok = file:make_dir(Subdir),
@@ -303,7 +305,7 @@ unzip_options(Config) when is_list(Config) ->
%% Verify.
?line true = (length(FList) =:= length(RetList)),
- ?line lists:foreach(fun(F)-> {ok,B} = file:read_file(filename:join(DataDir, F)),
+ ?line lists:foreach(fun(F)-> {ok,B} = file:read_file(filename:join(DataDir, F)),
{ok,B} = file:read_file(filename:join(Subdir, F)) end,
FList),
?line lists:foreach(fun(F)-> ok = file:delete(F) end,
@@ -321,7 +323,7 @@ unzip_jar(Config) when is_list(Config) ->
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
JarFile = filename:join(DataDir, "test.jar"),
-
+
%% create a temp directory
Subdir = filename:join(PrivDir, "jartest"),
ok = file:make_dir(Subdir),
@@ -479,7 +481,7 @@ unzip_to_binary(Config) when is_list(Config) ->
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
- delete_all_in(PrivDir),
+ delete_all_in(PrivDir),
file:set_cwd(PrivDir),
Long = filename:join(DataDir, "abc.zip"),
@@ -595,17 +597,17 @@ do_delete_files([],Cnt) ->
Cnt;
do_delete_files([Item|Rest], Cnt) ->
case file:delete(Item) of
- ok ->
+ ok ->
DelCnt = 1;
{error,eperm} ->
file:change_mode(Item, 8#777),
DelCnt = delete_files(filelib:wildcard(filename:join(Item, "*"))),
- file:del_dir(Item);
+ file:del_dir(Item);
{error,eacces} ->
%% We'll see about that!
file:change_mode(Item, 8#777),
case file:delete(Item) of
- ok ->
+ ok ->
DelCnt = 1;
{error,_} ->
erlang:yield(),
@@ -643,22 +645,22 @@ compress_control(Config) when is_list(Config) ->
],
test_compress_control(Dir,
- Files,
+ Files,
[{compress, []}],
[]),
test_compress_control(Dir,
- Files,
+ Files,
[{uncompress, all}],
[]),
test_compress_control(Dir,
- Files,
+ Files,
[{uncompress, []}],
[".txt", ".exe", ".zip", ".lzh", ".arj"]),
test_compress_control(Dir,
- Files,
+ Files,
[],
[".txt", ".exe"]),
@@ -686,7 +688,7 @@ test_compress_control(Dir, Files, ZipOptions, Expected) ->
create_files(Files),
{ok, Zip} = zip:create(Zip, [Dir], ZipOptions),
-
+
{ok, OpenZip} = zip:openzip_open(Zip, [memory]),
{ok,[#zip_comment{comment = ""} | ZipList]} = zip:openzip_list_dir(OpenZip),
io:format("compress_control: -> ~p -> ~p\n -> ~pn", [Expected, ZipOptions, ZipList]),
@@ -698,19 +700,19 @@ test_compress_control(Dir, Files, ZipOptions, Expected) ->
delete_files(lists:reverse(Names)), % Remove plain files before directories
ok.
-
+
verify_compression([{Name, Kind, _Filler} | Files], ZipList, OpenZip, ZipOptions, Expected) ->
{Name2, BinSz} =
case Kind of
- dir ->
+ dir ->
{Name ++ "/", 0};
- _ ->
+ _ ->
{ok, {Name, Bin}} = zip:openzip_get(Name, OpenZip),
{Name, size(Bin)}
end,
{Name2, {value, ZipFile}} = {Name2, lists:keysearch(Name2, #zip_file.name, ZipList)},
#zip_file{info = #file_info{size = InfoSz, type = InfoType}, comp_size = InfoCompSz} = ZipFile,
-
+
Ext = filename:extension(Name),
IsComp = is_compressed(Ext, Kind, ZipOptions),
ExpComp = lists:member(Ext, Expected),
@@ -757,3 +759,33 @@ extensions([H | T], Old) ->
extensions([], Old) ->
Old.
+foldl(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ File = filename:join([PrivDir, "foldl.zip"]),
+
+ FooBin = <<"FOO">>,
+ BarBin = <<"BAR">>,
+ Files = [{"foo", FooBin}, {"bar", BarBin}],
+ ?line {ok, {File, Bin}} = zip:create(File, Files, [memory]),
+ ZipFun = fun(N, I, B, Acc) -> [{N, B(), I()} | Acc] end,
+ ?line {ok, FileSpec} = zip:foldl(ZipFun, [], {File, Bin}),
+ ?line [{"bar", BarBin, #file_info{}}, {"foo", FooBin, #file_info{}}] = FileSpec,
+ ?line {ok, {File, Bin}} = zip:create(File, lists:reverse(FileSpec), [memory]),
+ ?line {foo_bin, FooBin} =
+ try
+ zip:foldl(fun("foo", _, B, _) -> throw(B()); (_, _, _, Acc) -> Acc end, [], {File, Bin})
+ catch
+ throw:FooBin ->
+ {foo_bin, FooBin}
+ end,
+ ?line ok = file:write_file(File, Bin),
+ ?line {ok, FileSpec} = zip:foldl(ZipFun, [], File),
+
+ ?line {error, einval} = zip:foldl(fun() -> ok end, [], File),
+ ?line {error, einval} = zip:foldl(ZipFun, [], 42),
+ ?line {error, einval} = zip:foldl(ZipFun, [], {File, 42}),
+
+ ?line ok = file:delete(File),
+ ?line {error, enoent} = zip:foldl(ZipFun, [], File),
+
+ ok.