rebar/src/rebar_file_utils.erl

%% -------------------------------------------------------------------
%%
%% 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_file_utils).

-export([rm_rf/1,
         mkdir_p/1,
         cp_r/2,
         ln_sf/2,
         delete_each/1]).

-include("rebar.hrl").

%% ===================================================================
%% Public API
%% ===================================================================

rm_rf(Target) ->
    [] = os:cmd(?FMT("rm -rf ~s", [Target])),
    ok.

mkdir_p(Target) ->
    [] = os:cmd(?FMT("mkdir -p ~s", [Target])),
    ok.

cp_r(Sources, Dest) ->
    SourceStr = string:join(Sources, " "),
    [] = os:cmd(?FMT("cp -R ~s ~s", [SourceStr, Dest])),
    ok.

ln_sf(Source, Dest) ->
    case filelib:is_dir(Dest) of
        true ->
            ActualDest = filename:join([Dest, filename:basename(Source)]);
        false ->
            ActualDest = Dest
    end,
    [] = os:cmd(?FMT("ln -sf ~s ~s", [Source, ActualDest])),
    ok.

delete_each([]) ->
    ok;
delete_each([File | Rest]) ->
    case file:delete(File) of
        ok ->
            delete_each(Rest);
        {error, enoent} ->
            delete_each(Rest);
        {error, Reason} ->
            ?ERROR("Failed to delete file ~s: ~p\n", [File, Reason]),
            ?FAIL
    end.