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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 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_prv_install_deps).
-behaviour(rebar_provider).
-export([init/1,
do/1]).
-include("rebar.hrl").
-export([setup_env/1]).
%% for internal use only
-export([get_deps_dir/1]).
-export([get_deps_dir/2]).
-define(PROVIDER, install_deps).
-define(DEPS, [app_discovery]).
-type src_dep() :: {atom(), string(), {atom(), string(), string()}}.
-type binary_dep() :: {atom(), binary()} | atom().
-type dep() :: src_dep() | binary_dep().
%% ===================================================================
%% Public API
%% ===================================================================
-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
State1 = rebar_state:add_provider(State, #provider{name = ?PROVIDER,
provider_impl = ?MODULE,
bare = false,
deps = ?DEPS,
example = undefined,
short_desc = "Install dependencies",
desc = info("Install dependencies"),
opts = []}),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()}.
do(State) ->
case rebar_state:get(State, locks, []) of
[] ->
handle_deps(State, ordsets:from_list(rebar_state:get(State, deps, [])));
Locks ->
handle_deps(State, ordsets:from_list(Locks))
end.
%% set REBAR_DEPS_DIR and ERL_LIBS environment variables
setup_env(State) ->
DepsDir = get_deps_dir(State),
%% include rebar's DepsDir in ERL_LIBS
Separator = case os:type() of
{win32, nt} ->
";";
_ ->
":"
end,
ERL_LIBS = case os:getenv("ERL_LIBS") of
false ->
{"ERL_LIBS", DepsDir};
PrevValue ->
{"ERL_LIBS", DepsDir ++ Separator ++ PrevValue}
end,
[{"REBAR_DEPS_DIR", DepsDir}, ERL_LIBS].
-spec get_deps_dir(rebar_state:t()) -> file:filename_all().
get_deps_dir(State) ->
BaseDir = rebar_state:get(State, base_dir, ""),
get_deps_dir(BaseDir, "deps").
-spec get_deps_dir(file:filename_all(), rebar_state:t()) -> file:filename_all().
get_deps_dir(DepsDir, App) ->
filename:join(DepsDir, App).
%% ===================================================================
%% Internal functions
%% ===================================================================
-spec handle_deps(rebar_state:t(), [dep()]) -> {ok, rebar_state:t()}.
handle_deps(State, []) ->
{ok, State};
handle_deps(State, Deps) ->
%% Read in package index and dep graph
{Packages, Graph} = rebar_packages:get_packages(State),
ProjectApps = rebar_state:project_apps(State),
%% Split source deps form binary deps, needed to keep backwards compatibility
DepsDir = get_deps_dir(State),
{SrcDeps, BinaryDeps} = parse_deps(DepsDir, Deps),
State1 = rebar_state:src_deps(rebar_state:binary_deps(State, BinaryDeps),
SrcDeps),
%% Fetch transitive src deps
State2 = update_src_deps(State1),
Solved = case rebar_state:binary_deps(State2) of
[] -> %% No binary deps
[];
BinaryDeps1 ->
%% Find binary deps needed
{ok, S} = rlx_depsolver:solve(Graph, BinaryDeps1),
%% Create app_info record for each binary dep
lists:map(fun({Name, Vsn}) ->
AppInfo = package_to_app(DepsDir
,Packages
,Name
,Vsn),
ok = maybe_fetch(AppInfo),
AppInfo
end, S)
end,
Source = ProjectApps ++ ordsets:to_list(rebar_state:src_deps(State2)),
AllDeps = ordsets:union([ordsets:to_list(rebar_state:src_deps(State2))
,ordsets:from_list(Solved)]),
%% Sort all apps to build order
State3 = rebar_state:set(State2, all_deps, AllDeps),
{ok, Sort} = rebar_topo:sort_apps(ordsets:to_list(Source)),
{ok, rebar_state:set(State3, deps_to_build, lists:dropwhile(fun is_valid/1, Sort -- ProjectApps))}.
-spec is_valid(rebar_app_info:t()) -> boolean().
is_valid(App) ->
rebar_app_info:valid(App).
-spec package_to_app(file:name(), rlx_depsolver:t(), binary(), binary()) -> rebar_app_info:t().
package_to_app(DepsDir, Packages, Name, Vsn) ->
FmtVsn = ec_cnv:to_binary(rlx_depsolver:format_version(Vsn)),
{ok, P} = dict:find({Name, FmtVsn}, Packages),
PkgDeps = proplists:get_value(<<"deps">>, P),
Link = proplists:get_value(<<"link">>, P),
{ok, AppInfo} = rebar_app_info:new(Name, FmtVsn),
AppInfo1 = rebar_app_info:deps(AppInfo, PkgDeps),
AppInfo2 =
rebar_app_info:dir(AppInfo1, get_deps_dir(DepsDir, <<Name/binary, "-", FmtVsn/binary>>)),
rebar_app_info:source(AppInfo2, Link).
-spec update_src_deps(rebar_state:t()) -> rebat_state:t().
update_src_deps(State) ->
SrcDeps = rebar_state:src_deps(State),
DepsDir = get_deps_dir(State),
case lists:foldl(fun(AppInfo, {SrcDepsAcc, BinaryDepsAcc}) ->
ok = maybe_fetch(AppInfo),
{AppInfo1, NewSrcDeps, NewBinaryDeps} = handle_dep(DepsDir, AppInfo),
{ordsets:union(ordsets:add_element(AppInfo1, SrcDepsAcc), NewSrcDeps)
,NewBinaryDeps++BinaryDepsAcc}
end, {ordsets:new(), rebar_state:binary_deps(State)}, SrcDeps) of
{NewSrcDeps, NewBinaryDeps} when length(SrcDeps) =:= length(NewSrcDeps) ->
rebar_state:src_deps(rebar_state:binary_deps(State, NewBinaryDeps), NewSrcDeps);
{NewSrcDeps, NewBinaryDeps} ->
State1 = rebar_state:src_deps(rebar_state:binary_deps(State, NewBinaryDeps), NewSrcDeps),
update_src_deps(State1)
end.
-spec handle_dep(binary(), rebar_state:t()) -> {[rebar_app_info:t()], [binary_dep()]}.
handle_dep(DepsDir, AppInfo) ->
C = rebar_config:consult(rebar_app_info:dir(AppInfo)),
S = rebar_state:new(rebar_state:new(), C, rebar_app_info:dir(AppInfo)),
Deps = rebar_state:get(S, deps, []),
AppInfo1 = rebar_app_info:deps(AppInfo, rebar_state:deps_names(S)),
{SrcDeps, BinaryDeps} = parse_deps(DepsDir, Deps),
{AppInfo1, SrcDeps, BinaryDeps}.
-spec maybe_fetch(rebar_app_info:t()) -> ok.
maybe_fetch(AppInfo) ->
AppDir = rebar_app_info:dir(AppInfo),
case filelib:is_dir(AppDir) of
false ->
?INFO("Fetching ~s~n", [rebar_app_info:name(AppInfo)]),
Source = rebar_app_info:source(AppInfo),
rebar_fetch:download_source(AppDir, Source);
true ->
ok
end.
-spec parse_deps(binary(), [dep()]) -> {ordsets:ordset(rebar_app_info:t()), [binary_dep()]}.
parse_deps(DepsDir, Deps) ->
lists:foldl(fun({Name, Vsn}, {SrcDepsAcc, BinaryDepsAcc}) ->
{SrcDepsAcc, [parse_goal(ec_cnv:to_binary(Name)
,ec_cnv:to_binary(Vsn)) | BinaryDepsAcc]};
(Name, {SrcDepsAcc, BinaryDepsAcc}) when is_atom(Name) ->
{SrcDepsAcc, [ec_cnv:to_binary(Name) | BinaryDepsAcc]};
({Name, Vsn, Source}, {SrcDepsAcc, BinaryDepsAcc}) when is_tuple (Source) ->
Dir = ec_cnv:to_list(get_deps_dir(DepsDir, Name)),
{ok, Dep} = case rebar_app_info:discover(Dir) of
{ok, App} ->
{ok, App};
not_found ->
rebar_app_info:new(Name, Vsn, Dir)
end,
Dep1 = rebar_app_info:source(Dep, Source),
{ordsets:add_element(Dep1, SrcDepsAcc), BinaryDepsAcc}
end, {ordsets:new(), []}, Deps).
-spec parse_goal(binary(), binary()) -> binary_dep().
parse_goal(Name, Constraint) ->
case re:run(Constraint, "([^\\d]*)(\\d.*)", [{capture, [1,2], binary}]) of
{match, [<<>>, Vsn]} ->
{Name, Vsn};
{match, [Op, Vsn]} ->
{Name, Vsn, binary_to_atom(Op, utf8)};
nomatch ->
fail
end.
info(Description) ->
io_lib:format("~s.~n"
"~n"
"Valid rebar.config options:~n"
" ~p~n"
" ~p~n"
"Valid command line options:~n"
" deps_dir=\"deps\" (override default or rebar.config deps_dir)~n",
[
Description,
{deps_dir, "deps"},
{deps,
[app_name,
{rebar, "1.0.*"},
{rebar, ".*",
{git, "git://github.com/rebar/rebar.git"}},
{rebar, ".*",
{git, "git://github.com/rebar/rebar.git", "Rev"}},
{rebar, "1.0.*",
{git, "git://github.com/rebar/rebar.git", {branch, "master"}}},
{rebar, "1.0.0",
{git, "git://github.com/rebar/rebar.git", {tag, "1.0.0"}}},
{rebar, "",
{git, "git://github.com/rebar/rebar.git", {branch, "master"}},
[raw]},
{app_name, ".*", {hg, "https://www.example.org/url"}},
{app_name, ".*", {rsync, "Url"}},
{app_name, ".*", {svn, "https://www.example.org/url"}},
{app_name, ".*", {svn, "svn://svn.example.org/url"}},
{app_name, ".*", {bzr, "https://www.example.org/url", "Rev"}},
{app_name, ".*", {fossil, "https://www.example.org/url"}},
{app_name, ".*", {fossil, "https://www.example.org/url", "Vsn"}},
{app_name, ".*", {p4, "//depot/subdir/app_dir"}}]}
]).
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