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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_pkg_resource).
-behaviour(rebar_resource).
-export([lock/2
,download/3
,needs_update/2
,make_vsn/1]).
-include("rebar.hrl").
lock(_AppDir, Source) ->
Source.
needs_update(Dir, {pkg, _Name, Vsn}) ->
[AppInfo] = rebar_app_discover:find_apps([Dir], all),
case rebar_app_info:original_vsn(AppInfo) =:= ec_cnv:to_list(Vsn) of
true ->
false;
false ->
true
end.
download(Dir, {pkg, Name, Vsn}, State) ->
TmpFile = filename:join(Dir, "package.tar.gz"),
CDN = rebar_state:get(State, rebar_packages_cdn, "https://s3.amazonaws.com/s3.hex.pm/tarballs"),
Url = string:join([CDN, binary_to_list(<<Name/binary, "-", Vsn/binary, ".tar">>)], "/"),
{ok, saved_to_file} = httpc:request(get, {Url, []}, [], [{stream, TmpFile}]),
{tarball, TmpFile}.
make_vsn(_) ->
{error, "Replacing version of type pkg not supported."}.
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