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-rw-r--r--erts/doc/src/erl_prim_loader.xml16
-rw-r--r--erts/preloaded/ebin/erl_prim_loader.beambin54776 -> 56176 bytes
-rw-r--r--erts/preloaded/src/erl_prim_loader.erl38
-rw-r--r--lib/kernel/src/erl_boot_server.erl6
-rw-r--r--lib/kernel/src/kernel.app.src2
-rw-r--r--lib/kernel/test/erl_prim_loader_SUITE.erl26
-rw-r--r--lib/stdlib/src/filelib.erl14
-rw-r--r--lib/stdlib/src/stdlib.app.src2
-rw-r--r--lib/stdlib/src/stdlib.appup.src6
-rw-r--r--lib/stdlib/test/filelib_SUITE.erl112
10 files changed, 200 insertions, 22 deletions
diff --git a/erts/doc/src/erl_prim_loader.xml b/erts/doc/src/erl_prim_loader.xml
index 6751deda4d..171f84decc 100644
--- a/erts/doc/src/erl_prim_loader.xml
+++ b/erts/doc/src/erl_prim_loader.xml
@@ -148,6 +148,22 @@
</desc>
</func>
<func>
+ <name name="read_link_info" arity="1"/>
+ <fsummary>Get information about a link or file</fsummary>
+ <desc>
+ <p>This function works like
+ <seealso marker="#read_file_info/1">read_file_info/1</seealso>
+ except that if <c><anno>Filename</anno></c> is a symbolic link,
+ information about the link will be returned in the <c>file_info</c>
+ record and the <c>type</c> field of the record will be set to
+ <c>symlink</c>.</p>
+ <p>If <c><anno>Filename</anno></c> is not a symbolic link, this function
+ returns exactly the same result as <c>read_file_info/1</c>.
+ On platforms that do not support symbolic links, this function
+ is always equivalent to <c>read_file_info/1</c>.</p>
+ </desc>
+ </func>
+ <func>
<name name="set_path" arity="1"/>
<fsummary>Set the path of the loader</fsummary>
<desc>
diff --git a/erts/preloaded/ebin/erl_prim_loader.beam b/erts/preloaded/ebin/erl_prim_loader.beam
index eec49f3983..5f2b619322 100644
--- a/erts/preloaded/ebin/erl_prim_loader.beam
+++ b/erts/preloaded/ebin/erl_prim_loader.beam
Binary files differ
diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl
index 578913b633..466e0b0020 100644
--- a/erts/preloaded/src/erl_prim_loader.erl
+++ b/erts/preloaded/src/erl_prim_loader.erl
@@ -42,11 +42,11 @@
%% Public
-export([start/3, set_path/1, get_path/0, get_file/1, get_files/2,
- list_dir/1, read_file_info/1, get_cwd/0, get_cwd/1]).
+ list_dir/1, read_file_info/1, read_link_info/1, get_cwd/0, get_cwd/1]).
%% Used by erl_boot_server
-export([prim_init/0, prim_get_file/2, prim_list_dir/2,
- prim_read_file_info/2, prim_get_cwd/2]).
+ prim_read_file_info/3, prim_get_cwd/2]).
%% Used by escript and code
-export([set_primary_archive/4, release_archives/0]).
@@ -223,6 +223,12 @@ list_dir(Dir) ->
read_file_info(File) ->
check_file_result(read_file_info, File, request({read_file_info,File})).
+-spec read_link_info(Filename) -> {'ok', FileInfo} | 'error' when
+ Filename :: string(),
+ FileInfo :: file:file_info().
+read_link_info(File) ->
+ check_file_result(read_link_info, File, request({read_link_info,File})).
+
-spec get_cwd() -> {'ok', string()} | 'error'.
get_cwd() ->
check_file_result(get_cwd, [], request({get_cwd,[]})).
@@ -325,6 +331,9 @@ loop(State, Parent, Paths) ->
{read_file_info,File} ->
{Res,State1} = handle_read_file_info(State, File),
{Res,State1,Paths};
+ {read_link_info,File} ->
+ {Res,State1} = handle_read_link_info(State, File),
+ {Res,State1,Paths};
{get_cwd,[]} ->
{Res,State1} = handle_get_cwd(State, []),
{Res,State1,Paths};
@@ -387,10 +396,15 @@ handle_list_dir(State = #state{loader = inet}, Dir) ->
?SAFE2(inet_list_dir(State, Dir), State).
handle_read_file_info(State = #state{loader = efile}, File) ->
- ?SAFE2(efile_read_file_info(State, File), State);
+ ?SAFE2(efile_read_file_info(State, File, true), State);
handle_read_file_info(State = #state{loader = inet}, File) ->
?SAFE2(inet_read_file_info(State, File), State).
+handle_read_link_info(State = #state{loader = efile}, File) ->
+ ?SAFE2(efile_read_file_info(State, File, false), State);
+handle_read_link_info(State = #state{loader = inet}, File) ->
+ ?SAFE2(inet_read_link_info(State, File), State).
+
handle_get_cwd(State = #state{loader = efile}, Drive) ->
?SAFE2(efile_get_cwd(State, Drive), State);
handle_get_cwd(State = #state{loader = inet}, Drive) ->
@@ -514,8 +528,8 @@ efile_list_dir(#state{prim_state = PS} = State, Dir) ->
{Res, PS2} = prim_list_dir(PS, Dir),
{Res, State#state{prim_state = PS2}}.
-efile_read_file_info(#state{prim_state = PS} = State, File) ->
- {Res, PS2} = prim_read_file_info(PS, File),
+efile_read_file_info(#state{prim_state = PS} = State, File, FollowLinks) ->
+ {Res, PS2} = prim_read_file_info(PS, File, FollowLinks),
{Res, State#state{prim_state = PS2}}.
efile_get_cwd(#state{prim_state = PS} = State, Drive) ->
@@ -718,6 +732,10 @@ inet_list_dir(State, Dir) ->
inet_read_file_info(State, File) ->
inet_send_and_rcv({read_file_info,File}, read_file_info, State).
+%% -> {{ok,Info},State} | {{error,Reason},State}
+inet_read_link_info(State, File) ->
+ inet_send_and_rcv({read_link_info,File}, read_link_info, State).
+
%% -> {{ok,Cwd},State} | {{error,Reason},State}
inet_get_cwd(State, []) ->
inet_send_and_rcv(get_cwd, get_cwd, State);
@@ -951,16 +969,18 @@ prim_list_dir(PS, Dir) ->
debug(PS, {return, Res2}),
{Res2, PS3}.
--spec prim_read_file_info(prim_state(), file:filename()) ->
+-spec prim_read_file_info(prim_state(), file:filename(), boolean()) ->
{{'ok', #file_info{}}, prim_state()}
| {{'error', term()}, prim_state()}.
-prim_read_file_info(PS, File) ->
+prim_read_file_info(PS, File, FollowLinks) ->
debug(PS, {read_file_info, File}),
{Res2, PS2} =
case name_split(PS#prim_state.primary_archive, File) of
{file, PrimFile} ->
- Res = prim_file:read_file_info(PrimFile),
- {Res, PS};
+ case FollowLinks of
+ true -> {prim_file:read_file_info(PrimFile), PS};
+ false -> {prim_file:read_link_info(PrimFile), PS}
+ end;
{archive, ArchiveFile, []} ->
%% Fake top directory
debug(PS, {archive_read_file_info, ArchiveFile}),
diff --git a/lib/kernel/src/erl_boot_server.erl b/lib/kernel/src/erl_boot_server.erl
index 9a49655a9f..ef09d86ca4 100644
--- a/lib/kernel/src/erl_boot_server.erl
+++ b/lib/kernel/src/erl_boot_server.erl
@@ -341,9 +341,13 @@ handle_command(S, PS, Msg) ->
send_file_result(S, list_dir, Res),
PS2;
{read_file_info,File} ->
- {Res, PS2} = erl_prim_loader:prim_read_file_info(PS, File),
+ {Res, PS2} = erl_prim_loader:prim_read_file_info(PS, File, true),
send_file_result(S, read_file_info, Res),
PS2;
+ {read_link_info,File} ->
+ {Res, PS2} = erl_prim_loader:prim_read_file_info(PS, File, false),
+ send_file_result(S, read_link_info, Res),
+ PS2;
get_cwd ->
{Res, PS2} = erl_prim_loader:prim_get_cwd(PS, []),
send_file_result(S, get_cwd, Res),
diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src
index 5658c6b6cf..9f6c0f4624 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -115,6 +115,6 @@
{applications, []},
{env, [{error_logger, tty}]},
{mod, {kernel, []}},
- {runtime_dependencies, ["erts-6.0", "stdlib-2.0", "sasl-2.4"]}
+ {runtime_dependencies, ["erts-6.1.2", "stdlib-2.0", "sasl-2.4"]}
]
}.
diff --git a/lib/kernel/test/erl_prim_loader_SUITE.erl b/lib/kernel/test/erl_prim_loader_SUITE.erl
index b2ca3bdbc2..658c31c14d 100644
--- a/lib/kernel/test/erl_prim_loader_SUITE.erl
+++ b/lib/kernel/test/erl_prim_loader_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. 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
@@ -328,6 +328,30 @@ file_requests(Config) when is_list(Config) ->
{ok,Info} = file:read_file_info(code:which(test_server)),
?line {ok,Info} = rpc:call(Node, erl_prim_loader, read_file_info,
[code:which(test_server)]),
+
+ PrivDir = ?config(priv_dir,Config),
+ Dir = filename:join(PrivDir,?MODULE_STRING++"_file_requests"),
+ ok = file:make_dir(Dir),
+ Alias = filename:join(Dir,"symlink"),
+ case file:make_symlink(code:which(test_server), Alias) of
+ {error, enotsup} ->
+ %% Links not supported on this platform
+ ok;
+ {error, eperm} ->
+ {win32,_} = os:type(),
+ %% Windows user not privileged to create symlinks"
+ ok;
+ ok ->
+ %% Reading file info for link should return file info for
+ %% link target
+ {ok,Info} = rpc:call(Node, erl_prim_loader, read_file_info,
+ [Alias]),
+ #file_info{type=regular} = Info,
+ {ok,#file_info{type=symlink}} =
+ rpc:call(Node, erl_prim_loader, read_link_info,
+ [Alias])
+ end,
+
{ok,Cwd} = file:get_cwd(),
?line {ok,Cwd} = rpc:call(Node, erl_prim_loader, get_cwd, []),
case file:get_cwd("C:") of
diff --git a/lib/stdlib/src/filelib.erl b/lib/stdlib/src/filelib.erl
index c0921e4cf1..9efbe8da20 100644
--- a/lib/stdlib/src/filelib.erl
+++ b/lib/stdlib/src/filelib.erl
@@ -265,7 +265,7 @@ do_wildcard(Pattern, Cwd, Mod) ->
lists:sort(Files).
do_wildcard_1({exists,File}, Mod) ->
- case eval_read_file_info(File, Mod) of
+ case eval_read_link_info(File, Mod) of
{ok,_} -> [File];
_ -> []
end;
@@ -488,7 +488,7 @@ badpattern(Reason) ->
error({badpattern,Reason}).
eval_read_file_info(File, file) ->
- file:read_link_info(File);
+ file:read_file_info(File);
eval_read_file_info(File, erl_prim_loader) ->
case erl_prim_loader:read_file_info(File) of
error -> {error, erl_prim_loader};
@@ -497,6 +497,16 @@ eval_read_file_info(File, erl_prim_loader) ->
eval_read_file_info(File, Mod) ->
Mod:read_file_info(File).
+eval_read_link_info(File, file) ->
+ file:read_link_info(File);
+eval_read_link_info(File, erl_prim_loader) ->
+ case erl_prim_loader:read_link_info(File) of
+ error -> {error, erl_prim_loader};
+ Res-> Res
+ end;
+eval_read_link_info(File, Mod) ->
+ Mod:read_link_info(File).
+
eval_list_dir(Dir, file) ->
file:list_dir(Dir);
eval_list_dir(Dir, erl_prim_loader) ->
diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src
index d388410de0..3585eec342 100644
--- a/lib/stdlib/src/stdlib.app.src
+++ b/lib/stdlib/src/stdlib.app.src
@@ -103,7 +103,7 @@
dets]},
{applications, [kernel]},
{env, []},
- {runtime_dependencies, ["sasl-2.4","kernel-3.0","erts-6.0","crypto-3.3",
+ {runtime_dependencies, ["sasl-2.4","kernel-3.0.2","erts-6.1.2","crypto-3.3",
"compiler-5.0"]}
]}.
diff --git a/lib/stdlib/src/stdlib.appup.src b/lib/stdlib/src/stdlib.appup.src
index 22eefb2514..99d9b8b431 100644
--- a/lib/stdlib/src/stdlib.appup.src
+++ b/lib/stdlib/src/stdlib.appup.src
@@ -17,9 +17,11 @@
%% %CopyrightEnd%
{"%VSN%",
%% Up from - max one major revision back
- [{<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
+ [{<<"2\\.1(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1
+ {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
{<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16
%% Down to - max one major revision back
- [{<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% R17
+ [{<<"2\\.1(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1
+ {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0
{<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16
}.
diff --git a/lib/stdlib/test/filelib_SUITE.erl b/lib/stdlib/test/filelib_SUITE.erl
index 8203a03a7a..040ae1effc 100644
--- a/lib/stdlib/test/filelib_SUITE.erl
+++ b/lib/stdlib/test/filelib_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2005-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2014. 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
@@ -23,7 +23,8 @@
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,symlinks/1]).
+ fold_files/1,otp_5960/1,ensure_dir_eexist/1,ensure_dir_symlink/1,
+ wildcard_symlink/1, is_file_symlink/1, file_props_symlink/1]).
-import(lists, [foreach/2]).
@@ -43,7 +44,8 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[wildcard_one, wildcard_two, wildcard_errors,
- fold_files, otp_5960, ensure_dir_eexist, symlinks].
+ fold_files, otp_5960, ensure_dir_eexist, ensure_dir_symlink,
+ wildcard_symlink, is_file_symlink, file_props_symlink].
groups() ->
[].
@@ -367,9 +369,28 @@ ensure_dir_eexist(Config) when is_list(Config) ->
?line {error, eexist} = filelib:ensure_dir(NeedFileB),
ok.
-symlinks(Config) when is_list(Config) ->
+ensure_dir_symlink(Config) when is_list(Config) ->
PrivDir = ?config(priv_dir, Config),
- Dir = filename:join(PrivDir, ?MODULE_STRING++"_symlinks"),
+ Dir = filename:join(PrivDir, "ensure_dir_symlink"),
+ Name = filename:join(Dir, "same_name_as_file_and_dir"),
+ ok = filelib:ensure_dir(Name),
+ ok = file:write_file(Name, <<"some string\n">>),
+ %% With a symlink to the directory.
+ Symlink = filename:join(PrivDir, "ensure_dir_symlink_link"),
+ case file:make_symlink(Dir, Symlink) of
+ {error,enotsup} ->
+ {skip,"Symlinks not supported on this platform"};
+ {error,eperm} ->
+ {win32,_} = os:type(),
+ {skip,"Windows user not privileged to create symlinks"};
+ ok ->
+ SymlinkedName = filename:join(Symlink, "same_name_as_file_and_dir"),
+ ok = filelib:ensure_dir(SymlinkedName)
+ end.
+
+wildcard_symlink(Config) when is_list(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ Dir = filename:join(PrivDir, ?MODULE_STRING++"_wildcard_symlink"),
SubDir = filename:join(Dir, "sub"),
AFile = filename:join(SubDir, "a_file"),
Alias = filename:join(Dir, "symlink"),
@@ -387,6 +408,18 @@ symlinks(Config) when is_list(Config) ->
basenames(Dir, filelib:wildcard(filename:join(Dir, "*"))),
["symlink"] =
basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"))),
+ ["sub","symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "*"),
+ erl_prim_loader)),
+ ["symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"),
+ erl_prim_loader)),
+ ["sub","symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "*"),
+ prim_file)),
+ ["symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"),
+ prim_file)),
ok = file:delete(AFile),
%% The symlink should still be visible even when its target
%% has been deleted.
@@ -394,6 +427,18 @@ symlinks(Config) when is_list(Config) ->
basenames(Dir, filelib:wildcard(filename:join(Dir, "*"))),
["symlink"] =
basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"))),
+ ["sub","symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "*"),
+ erl_prim_loader)),
+ ["symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"),
+ erl_prim_loader)),
+ ["sub","symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "*"),
+ prim_file)),
+ ["symlink"] =
+ basenames(Dir, filelib:wildcard(filename:join(Dir, "symlink"),
+ prim_file)),
ok
end.
@@ -402,3 +447,60 @@ basenames(Dir, Files) ->
Dir = filename:dirname(F),
filename:basename(F)
end || F <- Files].
+
+is_file_symlink(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ Dir = filename:join(PrivDir, ?MODULE_STRING++"_is_file_symlink"),
+ SubDir = filename:join(Dir, "sub"),
+ AFile = filename:join(SubDir, "a_file"),
+ DirAlias = filename:join(Dir, "dir_symlink"),
+ FileAlias = filename:join(Dir, "file_symlink"),
+ ok = file:make_dir(Dir),
+ ok = file:make_dir(SubDir),
+ ok = file:write_file(AFile, "not that big\n"),
+ case file:make_symlink(SubDir, DirAlias) of
+ {error, enotsup} ->
+ {skip, "Links not supported on this platform"};
+ {error, eperm} ->
+ {win32,_} = os:type(),
+ {skip, "Windows user not privileged to create symlinks"};
+ ok ->
+ true = filelib:is_dir(DirAlias),
+ true = filelib:is_dir(DirAlias, erl_prim_loader),
+ true = filelib:is_dir(DirAlias, prim_file),
+ true = filelib:is_file(DirAlias),
+ true = filelib:is_file(DirAlias, erl_prim_loader),
+ true = filelib:is_file(DirAlias, prim_file),
+ ok = file:make_symlink(AFile,FileAlias),
+ true = filelib:is_file(FileAlias),
+ true = filelib:is_file(FileAlias, erl_prim_loader),
+ true = filelib:is_file(FileAlias, prim_file),
+ true = filelib:is_regular(FileAlias),
+ true = filelib:is_regular(FileAlias, erl_prim_loader),
+ true = filelib:is_regular(FileAlias, prim_file),
+ ok
+ end.
+
+file_props_symlink(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ Dir = filename:join(PrivDir, ?MODULE_STRING++"_file_props_symlink"),
+ AFile = filename:join(Dir, "a_file"),
+ Alias = filename:join(Dir, "symlink"),
+ ok = file:make_dir(Dir),
+ 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 ->
+ {_,_} = LastMod = filelib:last_modified(AFile),
+ LastMod = filelib:last_modified(Alias),
+ LastMod = filelib:last_modified(Alias, erl_prim_loader),
+ LastMod = filelib:last_modified(Alias, prim_file),
+ FileSize = filelib:file_size(AFile),
+ FileSize = filelib:file_size(Alias),
+ FileSize = filelib:file_size(Alias, erl_prim_loader),
+ FileSize = filelib:file_size(Alias, prim_file)
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 04:10:49 +0000