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|
%% -*- tab-width: 4;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_otp_app).
-export([compile/2,
clean/2,
install/2]).
-include("rebar.hrl").
%% ===================================================================
%% Public API
%% ===================================================================
compile(_Config, File) ->
%% If we get an .app.src file, it needs to be pre-processed and
%% written out as a ebin/*.app file. That resulting file will then
%% be validated as usual.
case rebar_app_utils:is_app_src(File) of
true ->
AppFile = preprocess(File);
false ->
AppFile = File
end,
%% Load the app file and validate it.
case rebar_app_utils:load_app_file(AppFile) of
{ok, AppName, AppData} ->
validate_name(AppName, AppFile),
validate_modules(AppName, proplists:get_value(modules, AppData));
{error, Reason} ->
?ABORT("Failed to load app file ~s: ~p\n", [AppFile, Reason])
end.
clean(_Config, File) ->
%% If the app file is a .app.src, delete the generated .app file
case rebar_app_utils:is_app_src(File) of
true ->
file:delete(rebar_app_utils:app_src_to_app(File)),
ok;
false ->
ok
end.
install(Config, File) ->
%% If we get an .app.src file, it needs to be pre-processed and
%% written out as a ebin/*.app file. That resulting file will then
%% be validated as usual.
case rebar_app_utils:is_app_src(File) of
true ->
AppFile = preprocess(File);
false ->
AppFile = File
end,
%% Load the app name and version from the .app file and construct
%% the app identifier
{ok, AppName, AppData} = rebar_app_utils:load_app_file(AppFile),
%% Validate the .app file prior to installation
validate_name(AppName, AppFile),
validate_modules(AppName, proplists:get_value(modules, AppData)),
%% Get the target directory. The user can specify a target= directory
%% on the command line for convenience, or it defaults to the Erlang
%% install dir
TargetDir = rebar_config:get_global(target, code:lib_dir()),
%% Pull out the vsn and construct identifier
Vsn = proplists:get_value(vsn, AppData),
AppId = ?FMT("~s-~s", [AppName, Vsn]),
?CONSOLE("Installing: ~s to ~s\n", [AppId, TargetDir]),
%% Check the erlang lib directory to see if this app identifier
%% is already present.
AppDir = filename:join([TargetDir, AppId]),
case filelib:is_dir(AppDir) of
true ->
%% Already exists -- check for force=1 global flag and only
%% continue if it's set
case rebar_config:get_global(force, "0") of
"0" ->
?ERROR("~s already exists. Installation failed.\n", [AppId]),
?FAIL;
"1" ->
?WARN("~s already exists, but forcibly overwriting.\n", [AppId])
end;
false ->
ok
end,
%% Wipe out any previous versions
ok = rebar_file_utils:rm_rf(AppDir),
%% Re-create target
ok = rebar_file_utils:mkdir_p(AppDir),
%% By default we copy the ebin, include, src and priv directories (if they exist)
Files = [F || F <- ["ebin", "src", "priv", "include"],
filelib:last_modified(F) /= 0],
ok = rebar_file_utils:cp_r(Files, AppDir),
%% Check the config to see if we have any binaries that need to be
%% linked into the erlang path
case rebar_config:get_list(Config, app_bin, []) of
[] ->
ok;
List ->
%% code:root_dir() gives $OTPROOT/lib/erlang on a stock install
%% so find the bin dir relative to that.
BinDir = filename:join([code:root_dir(), "..", "..", "bin"]),
install_binaries(List, AppDir, BinDir)
end.
%% ===================================================================
%% Internal functions
%% ===================================================================
install_binaries([], _AppDir, _BinDir) ->
ok;
install_binaries([Bin | Rest], AppDir, BinDir) ->
FqBin = filename:join([AppDir, Bin]),
rebar_file_utils:ln_sf(FqBin, BinDir),
install_binaries(Rest, AppDir, BinDir).
preprocess(AppSrcFile) ->
case rebar_app_utils:load_app_file(AppSrcFile) of
{ok, AppName, AppData} ->
%% Get a list of all the modules available in ebin/ and update
%% the app data accordingly
A1 = lists:keystore(modules, 1, AppData, {modules, ebin_modules()}),
%% Build the final spec as a string
Spec = io_lib:format("~p.\n", [{application, AppName, A1}]),
%% Setup file .app filename and write new contents
AppFile = rebar_app_utils:app_src_to_app(AppSrcFile),
ok = file:write_file(AppFile, Spec),
%% Make certain that the ebin/ directory is available on the code path
code:add_path(filename:absname(filename:dirname(AppFile))),
AppFile;
{error, Reason} ->
?ABORT("Failed to read ~s for preprocessing: ~p\n", [AppSrcFile, Reason])
end.
validate_name(AppName, File) ->
%% Convert the .app file name to an atom -- check it against the identifier within the file
ExpApp = list_to_atom(filename:basename(File, ".app")),
case ExpApp == AppName of
true ->
ok;
false ->
?ERROR("Invalid ~s: name of application (~p) must match filename.\n",
[File, AppName]),
?FAIL
end.
validate_modules(AppName, undefined) ->
?ERROR("Missing modules declaration in~p.app:\n", [AppName]),
?FAIL;
validate_modules(AppName, Mods) ->
%% Construct two sets -- one for the actual .beam files in ebin/ and one for the modules
%% listed in the .app file
EbinSet = ordsets:from_list(ebin_modules()),
ModSet = ordsets:from_list(Mods),
%% Identify .beam files listed in the .app, but not present in ebin/
case ordsets:subtract(ModSet, EbinSet) of
[] ->
ok;
MissingBeams ->
Msg1 = lists:flatten([io_lib:format("\t* ~p\n", [M]) || M <- MissingBeams]),
?ERROR("One or more modules listed in ~p.app are not present in ebin/*.beam:\n~s",
[AppName, Msg1]),
?FAIL
end,
%% Identify .beam files NOT list in the .app, but present in ebin/
case ordsets:subtract(EbinSet, ModSet) of
[] ->
ok;
MissingMods ->
Msg2 = lists:flatten([io_lib:format("\t* ~p\n", [M]) || M <- MissingMods]),
?ERROR("One or more .beam files exist that are not listed in ~p.app:\n~s",
[AppName, Msg2]),
?FAIL
end.
ebin_modules() ->
lists:sort([rebar_utils:beam_to_mod("ebin", N) || N <- rebar_utils:beams("ebin")]).
|
