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rebar3/src/rebar_utils.erl

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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
%% -------------------------------------------------------------------
%%
%% rebar: Erlang Build Tools
%%
%% Copyright (c) 2009, 2010 Dave Smith (dizzyd@dizzyd.com)
%%
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%%
%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.
%%
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.
%% -------------------------------------------------------------------
-module(rebar_utils).
-export([sort_deps/1,
droplast/1,
filtermap/2,
is_arch/1,
sh/2,
sh_send/3,
abort/0,
abort/2,
escript_foldl/3,
find_files/2,
find_files/3,
find_files_in_dirs/3,
find_source/3,
beam_to_mod/1,
erl_to_mod/1,
beams/1,
find_executable/1,
vcs_vsn/3,
deprecated/3,
deprecated/4,
indent/1,
update_code/1,
update_code/2,
remove_from_code_path/1,
cleanup_code_path/1,
args_to_tasks/1,
expand_env_variable/3,
get_arch/0,
wordsize/0,
deps_to_binary/1,
to_binary/1,
to_list/1,
tup_dedup/1,
tup_umerge/2,
tup_sort/1,
tup_find/2,
line_count/1,
set_httpc_options/0,
url_append_path/2,
escape_chars/1,
escape_double_quotes/1,
escape_double_quotes_weak/1,
check_min_otp_version/1,
check_blacklisted_otp_versions/1,
info_useless/2,
list_dir/1,
user_agent/0,
reread_config/1, reread_config/2,
get_proxy_auth/0,
is_list_of_strings/1,
ssl_opts/1]).
%% for internal use only
-export([otp_release/0]).
-include("rebar.hrl").
-include_lib("public_key/include/OTP-PUB-KEY.hrl").
-define(ONE_LEVEL_INDENT, " ").
-define(APP_NAME_INDEX, 2).
%% ====================================================================
%% Public API
%% ====================================================================
sort_deps(Deps) ->
%% We need a sort stable, based on the name. So that for multiple deps on
%% the same level with the same name, we keep the order the parents had.
%% `lists:keysort/2' is documented as stable in the stdlib.
%% The list of deps is revered when we get it. For the proper stable
%% result, re-reverse it.
lists:keysort(?APP_NAME_INDEX, lists:reverse(Deps)).
droplast(L) ->
lists:reverse(tl(lists:reverse(L))).
%% @doc filtermap takes in a function that is either or both
%% a predicate and a map, and returns the matching and valid elements.
-spec filtermap(F, [In]) -> [Out] when
F :: fun((In) -> boolean() | {true, Out}),
In :: term(),
Out :: term().
filtermap(F, [Hd|Tail]) ->
case F(Hd) of
true ->
[Hd|filtermap(F, Tail)];
{true,Val} ->
[Val|filtermap(F, Tail)];
false ->
filtermap(F, Tail)
end;
filtermap(F, []) when is_function(F, 1) -> [].
is_arch(ArchRegex) ->
case re:run(get_arch(), ArchRegex, [{capture, none}, unicode]) of
match ->
true;
nomatch ->
false
end.
%% @doc returns the sytem architecture, in strings like
%% `"19.0.4-x86_64-unknown-linux-gnu-64"'.
-spec get_arch() -> string().
get_arch() ->
Words = wordsize(),
otp_release() ++ "-"
++ erlang:system_info(system_architecture) ++ "-" ++ Words.
%% @doc returns the size of a word on the system, as a string
-spec wordsize() -> string().
wordsize() ->
try erlang:system_info({wordsize, external}) of
Val ->
integer_to_list(8 * Val)
catch
error:badarg ->
integer_to_list(8 * erlang:system_info(wordsize))
end.
sh_send(Command0, String, Options0) ->
?INFO("sh_send info:\n\tcwd: ~p\n\tcmd: ~ts < ~ts\n",
[rebar_dir:get_cwd(), Command0, String]),
?DEBUG("\topts: ~p\n", [Options0]),
DefaultOptions = [use_stdout, abort_on_error],
Options = [expand_sh_flag(V)
|| V <- proplists:compact(Options0 ++ DefaultOptions)],
Command = lists:flatten(patch_on_windows(Command0, proplists:get_value(env, Options0, []))),
PortSettings = proplists:get_all_values(port_settings, Options) ++
[exit_status, {line, 16384}, use_stdio, stderr_to_stdout, hide],
Port = open_port({spawn, Command}, PortSettings),
try
%% allow us to send some data to the shell command's STDIN
%% Erlang doesn't let us get any reply after sending an EOF, though...
Port ! {self(), {command, String}}
after
port_close(Port)
end.
%%
%% Options = [Option] -- defaults to [use_stdout, abort_on_error]
%% Option = ErrorOption | OutputOption | {cd, string()} | {env, Env}
%% ErrorOption = return_on_error | abort_on_error | {abort_on_error, string()}
%% OutputOption = use_stdout | {use_stdout, bool()}
%% Env = [{string(), Val}]
%% Val = string() | false
%%
sh(Command0, Options0) ->
?DEBUG("sh info:\n\tcwd: ~p\n\tcmd: ~ts\n", [rebar_dir:get_cwd(), Command0]),
?DEBUG("\topts: ~p\n", [Options0]),
DefaultOptions = [{use_stdout, false}, debug_and_abort_on_error],
Options = [expand_sh_flag(V)
|| V <- proplists:compact(Options0 ++ DefaultOptions)],
ErrorHandler = proplists:get_value(error_handler, Options),
OutputHandler = proplists:get_value(output_handler, Options),
Command = lists:flatten(patch_on_windows(Command0, proplists:get_value(env, Options0, []))),
PortSettings = proplists:get_all_values(port_settings, Options) ++
[exit_status, {line, 16384}, use_stdio, stderr_to_stdout, hide, eof],
?DEBUG("Port Cmd: ~ts\nPort Opts: ~p\n", [Command, PortSettings]),
Port = open_port({spawn, Command}, PortSettings),
try
case sh_loop(Port, OutputHandler, []) of
{ok, _Output} = Ok ->
Ok;
{error, {_Rc, _Output}=Err} ->
ErrorHandler(Command, Err)
end
after
port_close(Port)
end.
find_files(Dir, Regex) ->
find_files(Dir, Regex, true).
find_files_in_dirs([], _Regex, _Recursive) ->
[];
find_files_in_dirs([Dir | T], Regex, Recursive) ->
find_files(Dir, Regex, Recursive) ++ find_files_in_dirs(T, Regex, Recursive).
find_files(Dir, Regex, Recursive) ->
filelib:fold_files(Dir, Regex, Recursive,
fun(F, Acc) -> [F | Acc] end, []).
find_executable(Name) ->
case os:find_executable(Name) of
false -> false;
Path ->
"\"" ++ filename:nativename(Path) ++ "\""
end.
deprecated(Old, New, Opts, When) when is_list(Opts) ->
case lists:member(Old, Opts) of
true ->
deprecated(Old, New, When);
false ->
ok
end;
deprecated(Old, New, Config, When) ->
case rebar_state:get(Config, Old, undefined) of
undefined ->
ok;
_ ->
deprecated(Old, New, When)
end.
deprecated(Old, New, When) ->
io:format(
<<"WARNING: deprecated ~p option used~n"
"Option '~p' has been deprecated~n"
"in favor of '~p'.~n"
"'~p' will be removed ~ts.~n">>,
[Old, Old, New, Old, When]).
%% for use by `do` task
%% note: this does not handle the case where you have an argument that
%% was enclosed in quotes and might have commas but should not be split.
args_to_tasks(Args) -> new_task(Args, []).
deps_to_binary([]) ->
[];
deps_to_binary([{Name, _, Source} | T]) ->
[{to_binary(Name), Source} | deps_to_binary(T)];
deps_to_binary([{Name, Source} | T]) ->
[{to_binary(Name), Source} | deps_to_binary(T)];
deps_to_binary([Name | T]) ->
[to_binary(Name) | deps_to_binary(T)].
to_binary(A) when is_atom(A) -> atom_to_binary(A, unicode);
to_binary(Str) -> unicode:characters_to_binary(Str).
to_list(A) when is_atom(A) -> atom_to_list(A);
to_list(Str) -> unicode:characters_to_list(Str).
tup_dedup(List) ->
tup_dedup_(tup_sort(List)).
tup_dedup_([]) ->
[];
tup_dedup_([A]) ->
[A];
tup_dedup_([A,B|T]) when element(1, A) =:= element(1, B) ->
tup_dedup_([A | T]);
tup_dedup_([A,B|T]) when element(1, A) =:= B ->
tup_dedup_([A | T]);
tup_dedup_([A,B|T]) when A =:= element(1, B) ->
tup_dedup_([A | T]);
tup_dedup_([A,A|T]) ->
[A|tup_dedup_(T)];
tup_dedup_([A|T]) ->
[A|tup_dedup_(T)].
%% Sort the list in proplist-order, meaning that `{a,b}' and `{a,c}'
%% both compare as usual, and `a' and `b' do the same, but `a' and `{a,b}' will
%% compare based on the first element of the key, and in order. So the following
%% list will sort as:
%% - `[native, {native,o3}, check]' -> `[check, native, {native, o3}]'
%% - `[native, {native,o3}, {native, o2}, check]' -> `[check,native,{native,o3},{native,o2}]'
%% Meaning that:
%% a) no deduplication takes place
%% b) the key of a tuple is what counts in being sorted, but atoms are seen as {atom}
%% as far as comparison is concerned (departing from lists:ukeysort/2)
%% c) order is preserved for similar keys and tuples no matter their size (sort is stable)
%%
%% These properties let us merge proplists fairly easily.
tup_sort(List) ->
lists:sort(fun(A, B) when is_tuple(A), is_tuple(B) -> element(1, A) =< element(1, B)
; (A, B) when is_tuple(A) -> element(1, A) =< B
; (A, B) when is_tuple(B) -> A =< element(1, B)
; (A, B) -> A =< B
end, List).
%% Custom merge functions. The objective is to behave like lists:umerge/2,
%% except that we also compare the merge elements based on the key if they're a
%% tuple, such that `{key, val1}' is always prioritized over `{key, val0}' if
%% the former is from the 'new' list.
%%
%% This lets us apply proper overrides to list of elements according to profile
%% priority. This function depends on a stable proplist sort.
tup_umerge(NewList, OldList) ->
tup_umerge_(tup_sort(NewList), tup_sort(OldList)).
tup_umerge_([], Olds) ->
Olds;
tup_umerge_([New|News], Olds) ->
tup_umerge_dedup_(umerge(new, News, Olds, [], New), []).
%% removes 100% identical duplicate elements so that
%% `[a,{a,b},a,{a,c},a]' returns `[a,{a,b},{a,c}]'.
%% Operates on a reverted list that gets reversed as part of this pass
tup_umerge_dedup_([], Acc) ->
Acc;
tup_umerge_dedup_([H|T], Acc) ->
case lists:member(H,T) of
true -> tup_umerge_dedup_(T, Acc);
false -> tup_umerge_dedup_(T, [H|Acc])
end.
tup_find(_Elem, []) ->
false;
tup_find(Elem, [Elem | _Elems]) ->
Elem;
tup_find(Elem, [Elem1 | Elems]) when is_tuple(Elem1) ->
case element(1, Elem1) =:= Elem of
true ->
Elem1;
false ->
tup_find(Elem, Elems)
end;
tup_find(Elem, [_Elem | Elems]) ->
tup_find(Elem, Elems).
-spec umerge(new|old, News, Olds, Acc, Current) -> Merged when
News :: [term()],
Olds :: [term()],
Acc :: [term()],
Current :: term(),
Merged :: [term()].
umerge(_, [], [], Acc, Current) ->
[Current | Acc];
umerge(new, News, [], Acc, Current) ->
%% only news left
lists:reverse(News, [Current|Acc]);
umerge(old, [], Olds, Acc, Current) ->
%% only olds left
lists:reverse(Olds, [Current|Acc]);
umerge(new, News, [Old|Olds], Acc, Current) ->
{Dir, Merged, NewCurrent} = compare({new, Current}, {old, Old}),
umerge(Dir, News, Olds, [Merged|Acc], NewCurrent);
umerge(old, [New|News], Olds, Acc, Current) ->
{Dir, Merged, NewCurrent} = compare({new, New}, {old, Current}),
umerge(Dir, News, Olds, [Merged|Acc], NewCurrent).
-spec compare({Priority, term()}, {Secondary, term()}) ->
{NextPriority, Merged, Larger} when
Priority :: new | old,
Secondary :: new | old,
NextPriority :: new | old,
Merged :: term(),
Larger :: term().
compare({Priority, A}, {Secondary, B}) when is_tuple(A), is_tuple(B) ->
KA = element(1,A),
KB = element(1,B),
if KA == KB -> {Secondary, A, B};
KA < KB -> {Secondary, A, B};
KA > KB -> {Priority, B, A}
end;
compare({Priority, A}, {Secondary, B}) when not is_tuple(A), not is_tuple(B) ->
if A == B -> {Secondary, A, B};
A < B -> {Secondary, A, B};
A > B -> {Priority, B, A}
end;
compare({Priority, A}, {Secondary, B}) when is_tuple(A), not is_tuple(B) ->
KA = element(1,A),
if KA == B -> {Secondary, A, B};
KA < B -> {Secondary, A, B};
KA > B -> {Priority, B, A}
end;
compare({Priority, A}, {Secondary, B}) when not is_tuple(A), is_tuple(B) ->
KB = element(1,B),
if A == KB -> {Secondary, A, B};
A < KB -> {Secondary, A, B};
A > KB -> {Priority, B, A}
end.
%% Implements wc -l functionality used to determine patchcount from git output
line_count(PatchLines) ->
Tokenized = rebar_string:lexemes(PatchLines, "\n"),
{ok, length(Tokenized)}.
check_min_otp_version(undefined) ->
ok;
check_min_otp_version(MinOtpVersion) ->
%% Fully-qualify with ?MODULE so the function can be meck'd in rebar_utils_SUITE
OtpRelease = ?MODULE:otp_release(),
ParsedMin = version_tuple(MinOtpVersion),
ParsedVsn = version_tuple(OtpRelease),
case ParsedVsn >= ParsedMin of
true ->
?DEBUG("~ts satisfies the requirement for minimum OTP version ~ts",
[OtpRelease, MinOtpVersion]);
false ->
?ABORT("OTP release ~ts or later is required. Version in use: ~ts",
[MinOtpVersion, OtpRelease])
end.
check_blacklisted_otp_versions(undefined) ->
ok;
check_blacklisted_otp_versions(BlacklistedRegexes) ->
%% Fully-qualify with ?MODULE so the function can be meck'd in rebar_utils_SUITE
OtpRelease = ?MODULE:otp_release(),
lists:foreach(
fun(BlacklistedRegex) -> abort_if_blacklisted(BlacklistedRegex, OtpRelease) end,
BlacklistedRegexes).
abort_if_blacklisted(BlacklistedRegex, OtpRelease) ->
case re:run(OtpRelease, BlacklistedRegex, [{capture, none}]) of
match ->
?ABORT("OTP release ~ts matches blacklisted version ~ts",
[OtpRelease, BlacklistedRegex]);
nomatch ->
?DEBUG("~ts does not match blacklisted OTP version ~ts",
[OtpRelease, BlacklistedRegex])
end.
user_agent() ->
{ok, Vsn} = application:get_key(rebar, vsn),
?FMT("Rebar/~ts (OTP/~ts)", [Vsn, otp_release()]).
reread_config(ConfigList) ->
%% Default to not re-configuring the logger for now;
%% this can leak logs in CT redirection when setting up hooks
%% for example. If we want to turn it on by default, we may
%% want to disable it in CT at the same time or figure out a
%% way to silence it.
%% The same pattern may apply to other tasks, so let's enable
%% case-by-case.
reread_config(ConfigList, []).
reread_config(ConfigList, Opts) ->
UpdateLoggerConfig = erlang:function_exported(logger, module_info, 0) andalso
proplists:get_value(update_logger, Opts, false),
%% NB: we attempt to mimic -config here, which survives app reload,
%% hence {persistent, true}.
SetEnv = case version_tuple(?MODULE:otp_release()) of
{X, _, _} when X < 17 ->
fun application:set_env/3;
_ ->
fun (App, Key, Val) -> application:set_env(App, Key, Val, [{persistent, true}]) end
end,
try
Res =
[SetEnv(Application, Key, Val)
|| Config <- ConfigList,
{Application, Items} <- Config,
{Key, Val} <- Items],
case UpdateLoggerConfig of
true -> reread_logger_config();
false -> ok
end,
Res
catch _:_ ->
?ERROR("The configuration file submitted could not be read "
"and will be ignored.", [])
end.
%% @private since the kernel app is already booted, re-reading its config
%% requires doing some magic to dynamically patch running handlers to
%% deal with the current value.
reread_logger_config() ->
KernelCfg = application:get_all_env(kernel),
LogCfg = proplists:get_value(logger, KernelCfg),
case LogCfg of
undefined ->
ok;
_ ->
%% Extract and apply settings related to primary configuration
%% -- primary config is used for settings shared across handlers
LogLvlPrimary = proplists:get_value(logger_level, KernelCfg, all),
{FilterDefault, Filters} =
case lists:keyfind(filters, 1, KernelCfg) of
false -> {log, []};
{filters, FoundDef, FoundFilter} -> {FoundDef, FoundFilter}
end,
Primary = #{level => LogLvlPrimary,
filter_default => FilterDefault,
filters => Filters},
%% Load the correct handlers based on their individual config.
[case Id of
default -> logger:update_handler_config(Id, Cfg);
_ -> logger:add_handler(Id, Mod, Cfg)
end || {handler, Id, Mod, Cfg} <- LogCfg],
logger:set_primary_config(Primary),
ok
end.
%% @doc Given env. variable `FOO' we want to expand all references to
%% it in `InStr'. References can have two forms: `$FOO' and `${FOO}'
%% The end of form `$FOO' is delimited with whitespace or EOL
-spec expand_env_variable(string(), string(), term()) -> string().
expand_env_variable(InStr, VarName, RawVarValue) ->
case rebar_string:chr(InStr, $$) of
0 ->
%% No variables to expand
InStr;
_ ->
ReOpts = [global, unicode, {return, list}],
VarValue = re:replace(RawVarValue, "\\\\", "\\\\\\\\", ReOpts),
%% Use a regex to match/replace:
%% Given variable "FOO": match $FOO\s | $FOOeol | ${FOO}
RegEx = io_lib:format("\\\$(~ts(\\W|$)|{~ts})", [VarName, VarName]),
re:replace(InStr, RegEx, [VarValue, "\\2"], ReOpts)
end.
%% ====================================================================
%% Internal functions
%% ====================================================================
version_tuple(OtpRelease) ->
case re:run(OtpRelease, "R?(\\d+)B?.?-?(\\d+)?.?-?(\\d+)?", [{capture, all, list}]) of
{match, [_Full, Maj, Min, Patch]} ->
{list_to_integer(Maj), list_to_integer(Min), list_to_integer(Patch)};
{match, [_Full, Maj, Min]} ->
{list_to_integer(Maj), list_to_integer(Min), 0};
{match, [_Full, Maj]} ->
{list_to_integer(Maj), 0, 0};
nomatch ->
?ABORT("Minimum OTP release unable to be parsed: ~ts", [OtpRelease])
end.
otp_release() ->
otp_release1(erlang:system_info(otp_release)).
%% If OTP <= R16, otp_release is already what we want.
otp_release1([$R,N|_]=Rel) when is_integer(N) ->
Rel;
%% If OTP >= 17.x, erlang:system_info(otp_release) returns just the
%% major version number, we have to read the full version from
%% a file. See http://www.erlang.org/doc/system_principles/versions.html
%% Read vsn string from the 'OTP_VERSION' file and return as list without
%% the "\n".
otp_release1(Rel) ->
File = filename:join([code:root_dir(), "releases", Rel, "OTP_VERSION"]),
case file:read_file(File) of
{error, _} ->
Rel;
{ok, Vsn} ->
%% It's fine to rely on the binary module here because we can
%% be sure that it's available when the otp_release string does
%% not begin with $R.
%% The shortest vsn string consists of at least two digits
%% followed by "\n". Therefore, it's safe to assume Size >= 3.
case binary:match(Vsn, <<"**">>) of
{Pos, _} ->
%% The OTP documentation mentions that a system patched
%% using the otp_patch_apply tool available to licensed
%% customers will leave a '**' suffix in the version as a
%% flag saying the system consists of application versions
%% from multiple OTP versions. We ignore this flag and
%% drop the suffix, given for all intents and purposes, we
%% cannot obtain relevant information from it as far as
%% tooling is concerned.
binary:bin_to_list(Vsn, {0, Pos});
nomatch ->
rebar_string:trim(binary:bin_to_list(Vsn), trailing, "\n")
end
end.
%% We do the shell variable substitution ourselves on Windows and hope that the
%% command doesn't use any other shell magic.
patch_on_windows(Cmd, Env) ->
case os:type() of
{win32,nt} ->
Cmd1 = "cmd /q /c "
++ lists:foldl(fun({Key, Value}, Acc) ->
expand_env_variable(Acc, Key, Value)
end, Cmd, Env),
%% Remove left-over vars
re:replace(Cmd1, "\\\$\\w+|\\\${\\w+}", "",
[global, {return, list}, unicode]);
_ ->
Cmd
end.
expand_sh_flag(return_on_error) ->
{error_handler,
fun(_Command, Err) ->
{error, Err}
end};
expand_sh_flag(abort_on_error) ->
{error_handler,
fun log_and_abort/2};
expand_sh_flag({abort_on_error, Message}) ->
{error_handler,
log_msg_and_abort(Message)};
expand_sh_flag({debug_abort_on_error, Message}) ->
{error_handler,
debug_log_msg_and_abort(Message)};
expand_sh_flag(debug_and_abort_on_error) ->
{error_handler,
fun debug_and_abort/2};
expand_sh_flag(use_stdout) ->
{output_handler,
fun(Line, Acc) ->
%% Line already has a newline so don't use ?CONSOLE which adds one
io:format("~ts", [Line]),
[Line | Acc]
end};
expand_sh_flag({use_stdout, false}) ->
{output_handler,
fun(Line, Acc) ->
[Line | Acc]
end};
expand_sh_flag({cd, _CdArg} = Cd) ->
{port_settings, Cd};
expand_sh_flag({env, _EnvArg} = Env) ->
{port_settings, Env}.
-type err_handler() :: fun((string(), {integer(), string()}) -> no_return()).
-spec log_msg_and_abort(string()) -> err_handler().
log_msg_and_abort(Message) ->
fun(_Command, {_Rc, _Output}) ->
?ABORT(Message, [])
end.
-spec debug_log_msg_and_abort(string()) -> err_handler().
debug_log_msg_and_abort(Message) ->
fun(Command, {Rc, Output}) ->
?DEBUG("sh(~ts)~n"
"failed with return code ~w and the following output:~n"
"~ts", [Command, Rc, Output]),
?ABORT(Message, [])
end.
-spec log_and_abort(string(), {integer(), string()}) -> no_return().
log_and_abort(Command, {Rc, Output}) ->
?ABORT("sh(~ts)~n"
"failed with return code ~w and the following output:~n"
"~ts", [Command, Rc, Output]).
-spec debug_and_abort(string(), {integer(), string()}) -> no_return().
debug_and_abort(Command, {Rc, Output}) ->
?DEBUG("sh(~ts)~n"
"failed with return code ~w and the following output:~n"
"~ts", [Command, Rc, Output]),
throw(rebar_abort).
sh_loop(Port, Fun, Acc) ->
receive
{Port, {data, {eol, Line}}} ->
sh_loop(Port, Fun, Fun(Line ++ "\n", Acc));
{Port, {data, {noeol, Line}}} ->
sh_loop(Port, Fun, Fun(Line, Acc));
{Port, eof} ->
Data = lists:flatten(lists:reverse(Acc)),
receive
{Port, {exit_status, 0}} ->
{ok, Data};
{Port, {exit_status, Rc}} ->
{error, {Rc, Data}}
end
end.
beam_to_mod(Filename) ->
list_to_atom(filename:basename(Filename, ".beam")).
erl_to_mod(Filename) ->
list_to_atom(filename:rootname(filename:basename(Filename))).
beams(Dir) ->
filelib:wildcard(filename:join(Dir, "*.beam")).
-spec abort() -> no_return().
abort() ->
throw(rebar_abort).
-spec abort(string(), [term()]) -> no_return().
abort(String, Args) ->
?ERROR(String, Args),
abort().
escript_foldl(Fun, Acc, File) ->
case escript:extract(File, [compile_source]) of
{ok, [_Shebang, _Comment, _EmuArgs, Body]} ->
case Body of
{source, BeamCode} ->
GetInfo = fun() -> file:read_file_info(File) end,
GetBin = fun() -> BeamCode end,
{ok, Fun(".", GetInfo, GetBin, Acc)};
{beam, BeamCode} ->
GetInfo = fun() -> file:read_file_info(File) end,
GetBin = fun() -> BeamCode end,
{ok, Fun(".", GetInfo, GetBin, Acc)};
{archive, ArchiveBin} ->
zip:foldl(Fun, Acc, {File, ArchiveBin})
end;
{error, _} = Error ->
Error
end.
%% TODO: this is just for rebar3_hex and maybe other plugins
%% but eventually it should be dropped
vcs_vsn(OriginalVsn, Dir, Resources) when is_list(Dir) ,
is_list(Resources) ->
?WARN("Using deprecated rebar_utils:vcs_vsn/3. Please upgrade your plugins.", []),
FakeState = rebar_state:new(),
{ok, AppInfo} = rebar_app_info:new(fake, OriginalVsn, Dir),
vcs_vsn(AppInfo, OriginalVsn,
rebar_state:set_resources(FakeState, Resources));
vcs_vsn(AppInfo, Vcs, State) ->
case vcs_vsn_cmd(AppInfo, Vcs, State) of
{plain, VsnString} ->
VsnString;
{cmd, CmdString} ->
cmd_vsn_invoke(CmdString, rebar_app_info:dir(AppInfo));
unknown ->
?ABORT("vcs_vsn: Unknown vsn format: ~p", [Vcs]);
{error, Reason} ->
?ABORT("vcs_vsn: ~ts", [Reason])
end.
%% Temp work around for repos like relx that use "semver"
vcs_vsn_cmd(_, Vsn, _) when is_binary(Vsn) ->
{plain, Vsn};
vcs_vsn_cmd(AppInfo, VCS, State) when VCS =:= semver ; VCS =:= "semver" ->
vcs_vsn_cmd(AppInfo, git, State);
vcs_vsn_cmd(_AppInfo, {cmd, _Cmd}=Custom, _) ->
Custom;
vcs_vsn_cmd(AppInfo, {file, File}, _) ->
Path = filename:join(rebar_app_info:dir(AppInfo), File),
{ok, Vsn} = file:read_file(Path),
{plain, to_list(rebar_string:trim(Vsn))};
vcs_vsn_cmd(AppInfo, VCS, State) when is_atom(VCS) ->
rebar_resource_v2:make_vsn(AppInfo, VCS, State);
vcs_vsn_cmd(AppInfo, {VCS, _}=V, State) when is_atom(VCS) ->
rebar_resource_v2:make_vsn(AppInfo, V, State);
vcs_vsn_cmd(AppInfo, VCS, State) when is_list(VCS) ->
try list_to_existing_atom(VCS) of
AVCS ->
case vcs_vsn_cmd(AppInfo, AVCS, State) of
unknown -> {plain, VCS};
Other -> Other
end
catch
error:badarg ->
{plain, VCS}
end;
vcs_vsn_cmd(_, _, _) ->
unknown.
cmd_vsn_invoke(Cmd, Dir) ->
{ok, VsnString} = rebar_utils:sh(Cmd, [{cd, Dir}, {use_stdout, false}]),
rebar_string:trim(VsnString, trailing, "\n").
%% @doc ident to the level specified
-spec indent(non_neg_integer()) -> iolist().
indent(Amount) when erlang:is_integer(Amount) ->
[?ONE_LEVEL_INDENT || _ <- lists:seq(1, Amount)].
%% Replace code paths with new paths for existing apps and
%% purge code of the old modules from those apps.
update_code(Paths) -> update_code(Paths, []).
update_code(Paths, Opts) ->
lists:foreach(fun(Path) ->
Name = filename:basename(Path, "/ebin"),
App = list_to_atom(Name),
application:load(App),
case application:get_key(App, modules) of
undefined ->
code:add_patha(Path),
ok;
{ok, Modules} ->
%% replace_path causes problems when running
%% tests in projects like erlware_commons that rebar3
%% also includes
%code:replace_path(App, Path),
code:del_path(App),
code:add_patha(Path),
case lists:member(soft_purge, Opts) of
true ->
[begin code:soft_purge(M), code:delete(M) end || M <- Modules];
false ->
[begin code:purge(M), code:delete(M) end || M <- Modules]
end
end
end, Paths).
remove_from_code_path(Paths) ->
lists:foreach(fun(Path) ->
Name = filename:basename(Path, "/ebin"),
App = list_to_atom(Name),
application:load(App),
case application:get_key(App, modules) of
undefined ->
application:unload(App),
ok;
{ok, Modules} ->
application:unload(App),
[case erlang:check_process_code(self(), M) of
false ->
code:purge(M), code:delete(M);
_ ->
?DEBUG("~p can't purge ~p safely, doing a soft purge", [self(), M]),
code:soft_purge(M) andalso code:delete(M)
end || M <- Modules]
end,
code:del_path(Path)
end, lists:usort(Paths)).
%% @doc Revert to only having the beams necessary for running rebar3 and
%% plugins in the path
-spec cleanup_code_path([string()]) -> true | {error, term()}.
cleanup_code_path(OrigPath) ->
CurrentPath = code:get_path(),
AddedPaths = CurrentPath -- OrigPath,
%% If someone has removed paths, it's hard to get them back into
%% the right order, but since this is currently rare, we can just
%% fall back to code:set_path/1.
case CurrentPath -- AddedPaths of
OrigPath ->
_ = [code:del_path(Path) || Path <- AddedPaths],
true;
_ ->
code:set_path(OrigPath)
end.
new_task([], Acc) -> lists:reverse(Acc);
new_task([TaskList|Rest], Acc) ->
case re:split(TaskList, ",", [{return, list}, {parts, 2}, unicode]) of
%% `do` consumes all remaining args
["do" = Task] ->
lists:reverse([{Task, Rest}|Acc]);
%% single task terminated by a comma
[Task, ""] -> new_task(Rest, [{Task, []}|Acc]);
%% sequence of two or more tasks
[Task, More] -> new_task([More|Rest], [{Task, []}|Acc]);
%% single task not terminated by a comma
[Task] -> arg_or_flag(Rest, [{Task, []}|Acc])
end.
arg_or_flag([], [{Task, Args}|Acc]) ->
lists:reverse([{Task, lists:reverse(Args)}|Acc]);
%% case where you have `foo , bar`
arg_or_flag([","|Rest], Acc) -> new_task(Rest, Acc);
%% case where you have `foo ,bar`
arg_or_flag(["," ++ Task|Rest], Acc) -> new_task([Task|Rest], Acc);
%% a flag
arg_or_flag(["-" ++ _ = Flag|Rest], [{Task, Args}|Acc]) ->
case maybe_ends_in_comma(Flag) of
false -> arg_or_flag(Rest, [{Task, [Flag|Args]}|Acc]);
NewFlag -> new_task(Rest, [{Task,
lists:reverse([NewFlag|Args])}|Acc])
end;
%% an argument or a sequence of arguments
arg_or_flag([ArgList|Rest], [{Task, Args}|Acc]) ->
case re:split(ArgList, ",", [{return, list}, {parts, 2}, unicode]) of
%% single arg terminated by a comma
[Arg, ""] -> new_task(Rest, [{Task,
lists:reverse([Arg|Args])}|Acc]);
%% sequence of two or more args/tasks
[Arg, More] -> new_task([More|Rest], [{Task,
lists:reverse([Arg|Args])}|Acc]);
%% single arg not terminated by a comma
[Arg] -> arg_or_flag(Rest, [{Task, [Arg|Args]}|Acc])
end.
maybe_ends_in_comma(H) ->
case lists:reverse(H) of
"," ++ Flag -> lists:reverse(Flag);
_ -> false
end.
get_http_vars(Scheme) ->
OS = case os:getenv(atom_to_list(Scheme)) of
Str when is_list(Str) -> Str;
_ -> []
end,
GlobalConfigFile = rebar_dir:global_config(),
Config = rebar_config:consult_file(GlobalConfigFile),
proplists:get_value(Scheme, Config, OS).
set_httpc_options() ->
set_httpc_options(https_proxy, get_http_vars(https_proxy)),
set_httpc_options(proxy, get_http_vars(http_proxy)).
set_httpc_options(_, []) ->
ok;
set_httpc_options(Scheme, Proxy) ->
URI = normalise_proxy(Scheme, Proxy),
{ok, {_, UserInfo, Host, Port, _, _}} = http_uri:parse(URI),
httpc:set_options([{Scheme, {{Host, Port}, []}}], rebar),
set_proxy_auth(UserInfo).
normalise_proxy(Scheme, URI) ->
case re:run(URI, "://", [unicode]) of
nomatch when Scheme =:= https_proxy -> "https://" ++ URI;
nomatch when Scheme =:= proxy -> "http://" ++ URI;
_ -> URI
end.
url_append_path(Url, ExtraPath) ->
case http_uri:parse(Url) of
{ok, {Scheme, UserInfo, Host, Port, Path, Query}} ->
{ok, lists:append([atom_to_list(Scheme), "://", UserInfo, Host, ":", integer_to_list(Port),
filename:join(Path, ExtraPath), Query])};
_ ->
error
end.
%% escape\ as\ a\ shell\?
escape_chars(Str) when is_atom(Str) ->
escape_chars(atom_to_list(Str));
escape_chars(Str) ->
re:replace(Str, "([ ()?`!$&;\"\'])", "\\\\&",
[global, {return, list}, unicode]).
%% "escape inside these"
escape_double_quotes(Str) ->
re:replace(Str, "([\"\\\\`!$&*;])", "\\\\&",
[global, {return, list}, unicode]).
%% "escape inside these" but allow *
escape_double_quotes_weak(Str) ->
re:replace(Str, "([\"\\\\`!$&;])", "\\\\&",
[global, {return, list}, unicode]).
info_useless(Old, New) ->
[?INFO("App ~ts is no longer needed and can be deleted.", [Name])
|| Name <- Old,
not lists:member(Name, New)],
ok.
list_dir(Dir) ->
%% `list_dir_all` returns raw files which are unsupported
%% prior to R16 so just fall back to `list_dir` if running
%% on an earlier vm
case erlang:function_exported(file, list_dir_all, 1) of
true -> file:list_dir_all(Dir);
false -> file:list_dir(Dir)
end.
set_proxy_auth([]) ->
ok;
set_proxy_auth(UserInfo) ->
[Username, Password] = re:split(UserInfo, ":",
[{return, list}, {parts,2}, unicode]),
%% password may contain url encoded characters, need to decode them first
application:set_env(rebar, proxy_auth, [{proxy_auth, {Username, http_uri:decode(Password)}}]).
get_proxy_auth() ->
case application:get_env(rebar, proxy_auth) of
undefined -> [];
{ok, ProxyAuth} -> ProxyAuth
end.
-spec is_list_of_strings(term()) -> boolean().
is_list_of_strings(List) when not is_list(hd(List)) ->
false;
is_list_of_strings(List) when is_list(hd(List)) ->
true;
is_list_of_strings(List) when is_list(List) ->
true.
%%------------------------------------------------------------------------------
%% @doc
%% Return the SSL options adequate for the project based on
%% its configuration, including for validation of certs.
%% @end
%%------------------------------------------------------------------------------
-spec ssl_opts(Url) -> Res when
Url :: string(),
Res :: proplists:proplist().
ssl_opts(Url) ->
case get_ssl_config() of
ssl_verify_enabled ->
ssl_opts(ssl_verify_enabled, Url);
ssl_verify_disabled ->
[{verify, verify_none}]
end.
%%------------------------------------------------------------------------------
%% @doc
%% Return the SSL options adequate for the project based on
%% its configuration, including for validation of certs.
%% @end
%%------------------------------------------------------------------------------
-spec ssl_opts(Enabled, Url) -> Res when
Enabled :: atom(),
Url :: string(),
Res :: proplists:proplist().
ssl_opts(ssl_verify_enabled, Url) ->
case check_ssl_version() of
true ->
{ok, {_, _, Hostname, _, _, _}} =
http_uri:parse(rebar_utils:to_list(Url)),
VerifyFun = {fun ssl_verify_hostname:verify_fun/3,
[{check_hostname, Hostname}]},
CACerts = certifi:cacerts(),
[{verify, verify_peer}, {depth, 2}, {cacerts, CACerts},
{partial_chain, fun partial_chain/1}, {verify_fun, VerifyFun}];
false ->
?WARN("Insecure HTTPS request (peer verification disabled), "
"please update to OTP 17.4 or later", []),
[{verify, verify_none}]
end.
-spec partial_chain(Certs) -> Res when
Certs :: list(any()),
Res :: unknown_ca | {trusted_ca, any()}.
partial_chain(Certs) ->
Certs1 = [{Cert, public_key:pkix_decode_cert(Cert, otp)} || Cert <- Certs],
CACerts = certifi:cacerts(),
CACerts1 = [public_key:pkix_decode_cert(Cert, otp) || Cert <- CACerts],
case ec_lists:find(fun({_, Cert}) ->
check_cert(CACerts1, Cert)
end, Certs1) of
{ok, Trusted} ->
{trusted_ca, element(1, Trusted)};
_ ->
unknown_ca
end.
-spec extract_public_key_info(Cert) -> Res when
Cert :: #'OTPCertificate'{tbsCertificate::#'OTPTBSCertificate'{}},
Res :: any().
extract_public_key_info(Cert) ->
((Cert#'OTPCertificate'.tbsCertificate)#'OTPTBSCertificate'.subjectPublicKeyInfo).
-spec check_cert(CACerts, Cert) -> Res when
CACerts :: list(any()),
Cert :: any(),
Res :: boolean().
check_cert(CACerts, Cert) ->
lists:any(fun(CACert) ->
extract_public_key_info(CACert) == extract_public_key_info(Cert)
end, CACerts).
-spec check_ssl_version() ->
boolean().
check_ssl_version() ->
case application:get_key(ssl, vsn) of
{ok, Vsn} ->
parse_vsn(Vsn) >= {5, 3, 6};
_ ->
false
end.
-spec get_ssl_config() ->
ssl_verify_disabled | ssl_verify_enabled.
get_ssl_config() ->
GlobalConfigFile = rebar_dir:global_config(),
Config = rebar_config:consult_file(GlobalConfigFile),
case proplists:get_value(ssl_verify, Config, []) of
false ->
ssl_verify_disabled;
_ ->
ssl_verify_enabled
end.
-spec parse_vsn(Vsn) -> Res when
Vsn :: string(),
Res :: {integer(), integer(), integer()}.
parse_vsn(Vsn) ->
version_pad(rebar_string:lexemes(Vsn, ".-")).
-spec version_pad(list(nonempty_string())) -> Res when
Res :: {integer(), integer(), integer()}.
version_pad([Major]) ->
{list_to_integer(Major), 0, 0};
version_pad([Major, Minor]) ->
{list_to_integer(Major), list_to_integer(Minor), 0};
version_pad([Major, Minor, Patch]) ->
{list_to_integer(Major), list_to_integer(Minor), list_to_integer(Patch)};
version_pad([Major, Minor, Patch | _]) ->
{list_to_integer(Major), list_to_integer(Minor), list_to_integer(Patch)}.
-ifdef(filelib_find_source).
find_source(Filename, Dir, Rules) ->
filelib:find_source(Filename, Dir, Rules).
-else.
%% Looks for a file relative to a given directory
-type find_file_rule() :: {ObjDirSuffix::string(), SrcDirSuffix::string()}.
%% Looks for a source file relative to the object file name and directory
-type find_source_rule() :: {ObjExtension::string(), SrcExtension::string(),
[find_file_rule()]}.
keep_suffix_search_rules(Rules) ->
[T || {_,_,_}=T <- Rules].
-spec find_source(file:filename(), file:filename(), [find_source_rule()]) ->
{ok, file:filename()} | {error, not_found}.
find_source(Filename, Dir, Rules) ->
try_suffix_rules(keep_suffix_search_rules(Rules), Filename, Dir).
try_suffix_rules(Rules, Filename, Dir) ->
Ext = filename:extension(Filename),
try_suffix_rules(Rules, filename:rootname(Filename, Ext), Dir, Ext).
try_suffix_rules([{Ext,Src,Rules}|Rest], Root, Dir, Ext)
when is_list(Src), is_list(Rules) ->
case try_dir_rules(add_local_search(Rules), Root ++ Src, Dir) of
{ok, File} -> {ok, File};
_Other ->
try_suffix_rules(Rest, Root, Dir, Ext)
end;
try_suffix_rules([_|Rest], Root, Dir, Ext) ->
try_suffix_rules(Rest, Root, Dir, Ext);
try_suffix_rules([], _Root, _Dir, _Ext) ->
{error, not_found}.
%% ensuring we check the directory of the object file before any other directory
add_local_search(Rules) ->
Local = {"",""},
[Local] ++ lists:filter(fun (X) -> X =/= Local end, Rules).
try_dir_rules([{From, To}|Rest], Filename, Dir)
when is_list(From), is_list(To) ->
case try_dir_rule(Dir, Filename, From, To) of
{ok, File} -> {ok, File};
error -> try_dir_rules(Rest, Filename, Dir)
end;
try_dir_rules([], _Filename, _Dir) ->
{error, not_found}.
try_dir_rule(Dir, Filename, From, To) ->
case lists:suffix(From, Dir) of
true ->
NewDir = lists:sublist(Dir, 1, length(Dir)-length(From))++To,
Src = filename:join(NewDir, Filename),
case filelib:is_regular(Src) of
true -> {ok, Src};
false -> find_regular_file(filelib:wildcard(Src))
end;
false ->
error
end.
find_regular_file([]) ->
error;
find_regular_file([File|Files]) ->
case filelib:is_regular(File) of
true -> {ok, File};
false -> find_regular_file(Files)
end.
-endif.