Packages
rebar3_hex
2.4.0
7.1.0
7.0.11
7.0.10
7.0.9
7.0.8
7.0.7
7.0.6
7.0.5
7.0.4
7.0.3
7.0.2
7.0.1
7.0.0
6.11.9
6.11.8
6.11.7
6.11.6
6.11.5
6.11.4
6.11.3
6.11.2
6.11.1
6.11.0
6.10.3
6.10.2
6.10.1
6.10.0
6.9.6
6.9.5
6.9.4
6.9.3
6.9.2
6.9.1
6.9.0
6.8.0
6.7.0
6.6.0
6.5.0
6.4.0
6.3.0
6.2.0
6.1.0
6.0.0
4.1.0
4.0.0
3.1.0
3.0.0
2.5.1
2.5.0
2.4.0
2.3.0
2.2.0
2.1.0
2.0.0
1.20.0
1.19.0
1.18.0
1.17.0
1.16.0
1.15.0
1.14.0
1.13.0
1.12.0
1.11.0
1.10.0
1.9.1
1.9.0
1.8.1
1.8.0
1.7.2
1.7.1
1.7.0
1.6.3
1.6.1
1.6.0
1.5.0
1.4.0
1.3.0
1.2.0
1.1.0
0.9.0
0.8.0
0.7.0
0.6.0
0.5.1
0.5.0
0.4.0
0.3.0
0.2.0
0.1.0
Hex.pm plugin for rebar3
Current section
Files
Jump to
Current section
Files
src/rebar3_hex_info.erl
-module(rebar3_hex_info).
-export([init/1
,do/1
,format_error/1]).
-include("rebar3_hex.hrl").
-define(PROVIDER, info).
-define(DEPS, []).
-define(ENDPOINT, "packages").
-define(RELEASE, "releases").
-define(REGISTRY_FILE, "registry").
%% ===================================================================
%% Public API
%% ===================================================================
-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
Provider = providers:create([
{name, ?PROVIDER},
{module, ?MODULE},
{namespace, hex},
{bare, true},
{deps, ?DEPS},
{example, "rebar3 hex user <command>"},
{short_desc, "Prints hex package or system information"},
{desc, ""},
{opts, []}
]),
State1 = rebar_state:add_provider(State, Provider),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
case rebar_state:command_args(State) of
[] ->
general(State);
[Package] ->
package(Package);
[Package, Version] ->
release(Package, Version)
end,
{ok, State}.
-spec format_error(any()) -> iolist().
format_error(Reason) ->
io_lib:format("~p", [Reason]).
general(State) ->
Deps = [
case X of
{Name, Ver} -> {normalize(Name), Ver};
Name -> {normalize(Name), get_ver(normalize(Name), State)}
end
|| X <-rebar_state:get(State, deps, [])],
display(dedup({Deps, []}), [], State).
%%prints out all deps at level 0, and
%%For those level 0 deps which are package dependencies (Found in Hex Database),
%%it continue printing deps at level > 0
display([], _, _State) ->
ok;
display([{Name, Vsn} | Deps], Listed, State) ->
ec_talk:say("~s ~s", [Name, Vsn]),
%accumulates already listed deps
NewListed = [{Name, Vsn} | Listed],
case get_deps(Name, Vsn, State) of
error ->
display(Deps, NewListed, State);
NewDeps ->
display(dedup({Deps ++ NewDeps, NewListed}), NewListed, State)
end.
%gets deps name(s) and version(s) for a package
get_deps(Package, Version, State) ->
RegistryDir = rebar_packages:registry_dir(State),
case ets:file2tab(filename:join(RegistryDir, ?REGISTRY_FILE)) of
{ok, Registry} ->
VerBin = ec_cnv:to_binary(Version),
case ets:lookup(Registry, {Package, VerBin}) of
[{{Package, VerBin}, [DepList, _, _]}] ->
[{normalize(Name), Ver} || [Name, Ver, _ , _] <- DepList];
_ -> error
end;
_ ->
%registry table not found
case rebar3_hex_http:get(filename:join([?ENDPOINT, Package, "releases", Version]), []) of
{ok, Map} ->
[{normalize(X), binary_to_list(maps:get(<<"requirement">>, maps:get(X, maps:get(<<"requirements">>, Map))))}
|| X <- maps:keys(maps:get(<<"requirements">>, Map))];
{error, 404} -> error;
_ -> error
end
end.
%gets latest release version
%returns " " if the Package is not found in Hex
get_ver(Package, State) ->
RegistryDir = rebar_packages:registry_dir(State),
case ets:file2tab(filename:join(RegistryDir, ?REGISTRY_FILE)) of
{ok, Registry} ->
case ets:lookup(Registry, Package) of
[{Package, [VerList]}] ->
lists:last(VerList);
_ -> " "
end;
_ ->
%registry table not found
case rebar3_hex_http:get(filename:join(?ENDPOINT, Package), []) of
{ok, Map} ->
Release = hd(maps:get(<<"releases">>, Map, [])),
binary_to_list(maps:get(<<"version">>, Release, []));
{error, 404} ->
" ";
_ ->
" "
end
end.
dedup({Deps, Listed}) ->
Current = Deps ++ Listed,
dedup(Deps, [name(Dep) || Dep <- Current]).
dedup([], _) -> [];
dedup([Dep|Deps], [Name|DepNames]) ->
case lists:member(Name, DepNames) of
true -> dedup(Deps, DepNames);
false -> [Dep | dedup(Deps, DepNames)]
end.
name(T) when is_tuple(T) -> element(1, T).
normalize(Name) when is_binary(Name) ->
Name;
normalize(Name) when is_atom(Name) ->
ec_cnv:to_binary(Name).
package(Package) ->
case rebar3_hex_http:get(filename:join(?ENDPOINT, Package), []) of
{ok, Map} ->
ec_talk:say("~s", [Package]),
Releases = maps:get(<<"releases">>, Map, []),
ec_talk:say(" Releases: ~s", [string:join([binary_to_list(maps:get(<<"version">>, X, [])) || X <- Releases], ", ")]),
Meta = maps:get(<<"meta">>, Map),
% Remove this when Hex no longer supports contributors
Contributors = maps:get(<<"contributors">>, Meta, []),
ec_talk:say(" Contributors: ~s", [join(Contributors)]),
Maintainers = maps:get(<<"maintainers">>, Meta, []),
ec_talk:say(" Maintainers: ~s", [join(Maintainers)]),
Licenses = maps:get(<<"licenses">>, Meta, []),
ec_talk:say(" Licenses: ~s", [join(Licenses)]),
Links = maps:to_list(maps:get(<<"links">>, Meta, [])),
ec_talk:say(" Links:\n ~s", [tup_list_join(Links)]),
Description = maps:get(<<"description">>, Meta, []),
ec_talk:say(Description, []);
{error, 404} ->
rebar_api:error("No package with name ~s", [Package]);
_ ->
rebar_api:error("Failed to retrieve package information")
end.
release(Package, Version) ->
case rebar3_hex_http:get(filename:join([?ENDPOINT, Package, "releases", Version]), []) of
{ok, Map} ->
ec_talk:say("~s ~s", [Package, Version]),
ec_talk:say(" Dependencies:\n ~s", [req_join(Map)]);
{error, 404} ->
rebar_api:error("No package with name ~s", [Package]);
_ ->
rebar_api:error("Failed to retrieve package information")
end.
join(List) ->
string:join([binary_to_list(X) || X <- List], ", ").
tup_list_join(List) ->
string:join([binary_to_list(X)++": "++binary_to_list(Y) || {X, Y} <- List], "\n ").
req_join(ReleaseMap) ->
string:join([binary_to_list(X)++": "++binary_to_list(maps:get(<<"requirement">>, maps:get(X, maps:get(<<"requirements">>, ReleaseMap))))
|| X <- maps:keys(maps:get(<<"requirements">>, ReleaseMap))],"\n ").