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author | Eric <[email protected]> | 2013-05-09 17:04:18 -0700 |
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committer | Eric <[email protected]> | 2013-05-09 17:04:18 -0700 |
commit | efbdfbe117939cd50d0252a210b9b7634de42bb4 (patch) | |
tree | 74b0bad39d3a5b25bd4199728c16c0b1a4ade703 /src/rcl_rel_discovery.erl | |
parent | 0d5a803a28010cc956948b614408b9d38997e9a1 (diff) | |
download | relx-efbdfbe117939cd50d0252a210b9b7634de42bb4.tar.gz relx-efbdfbe117939cd50d0252a210b9b7634de42bb4.tar.bz2 relx-efbdfbe117939cd50d0252a210b9b7634de42bb4.zip |
Basic file rename from rcl to rlx
Diffstat (limited to 'src/rcl_rel_discovery.erl')
-rw-r--r-- | src/rcl_rel_discovery.erl | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/src/rcl_rel_discovery.erl b/src/rcl_rel_discovery.erl deleted file mode 100644 index 6cd84f0..0000000 --- a/src/rcl_rel_discovery.erl +++ /dev/null @@ -1,156 +0,0 @@ -%% -*- erlang-indent-level: 4; indent-tabs-mode: nil; fill-column: 80 -*- -%%% Copyright 2012 Erlware, LLC. All Rights Reserved. -%%% -%%% This file is provided to you under the Apache License, -%%% Version 2.0 (the "License"); you may not use this file -%%% except in compliance with the License. You may obtain -%%% a copy of the License at -%%% -%%% http://www.apache.org/licenses/LICENSE-2.0 -%%% -%%% Unless required by applicable law or agreed to in writing, -%%% software distributed under the License is distributed on an -%%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -%%% KIND, either express or implied. See the License for the -%%% specific language governing permissions and limitations -%%% under the License. -%%%--------------------------------------------------------------------------- -%%% @author Eric Merritt <[email protected]> -%%% @copyright (C) 2012 Erlware, LLC. -%%% -%%% @doc This provider uses the lib_dir setting of the state. It searches the -%%% Lib Dirs looking for all OTP Applications that are available. When it finds -%%% those OTP Applications it loads the information about them and adds them to -%%% the state of available apps. This implements the rcl_provider behaviour. --module(rcl_rel_discovery). - --export([do/3, - format_error/1]). - --include_lib("relcool/include/relcool.hrl"). - -%%============================================================================ -%% API -%%============================================================================ - -%% @doc recursively dig down into the library directories specified in the state -%% looking for OTP Applications --spec do(rcl_state:t(), [filename:name()], [rcl_app_info:t()]) -> - {ok, [rcl_release:t()]} | relcool:error(). -do(State, LibDirs, AppMeta) -> - rcl_log:info(rcl_state:log(State), - fun() -> - ["Resolving available releases from directories:\n", - [[rcl_util:indent(1), LibDir, "\n"] || LibDir <- LibDirs]] - end), - resolve_rel_metadata(State, LibDirs, AppMeta). - --spec format_error([ErrorDetail::term()]) -> iolist(). -format_error(ErrorDetails) - when erlang:is_list(ErrorDetails) -> - [[format_detail(ErrorDetail), "\n"] || ErrorDetail <- ErrorDetails]. - -%%%=================================================================== -%%% Internal Functions -%%%=================================================================== -resolve_rel_metadata(State, LibDirs, AppMeta) -> - ReleaseMeta0 = lists:flatten(rcl_dscv_util:do(fun(LibDir, FileType) -> - discover_dir(LibDir, - AppMeta, - FileType) - end, LibDirs)), - - Errors = [case El of - {error, Ret} -> Ret; - _ -> El - end - || El <- ReleaseMeta0, - case El of - {error, _} -> - true; - _ -> - false - end], - - case Errors of - [] -> - ReleaseMeta1 = [RelMeta || {ok, RelMeta} <- ReleaseMeta0], - rcl_log:debug(rcl_state:log(State), - fun() -> - ["Resolved the following OTP Releases from the system: \n", - [[rcl_release:format(1, Rel), "\n"] || Rel <- ReleaseMeta1]] - end), - {ok, ReleaseMeta1}; - _ -> - ?RCL_ERROR(Errors) - end. - --spec format_detail(ErrorDetail::term()) -> iolist(). -format_detail({accessing, File, eaccess}) -> - io_lib:format("permission denied accessing file ~s", [File]); -format_detail({accessing, File, Type}) -> - io_lib:format("error (~p) accessing file ~s", [Type, File]). - --spec discover_dir(file:name(), [rcl_app_info:t()], directory | file) -> - {ok, rcl_release:t()} - | {error, Reason::term()} - | {noresult, false}. -discover_dir(_File, _AppMeta, directory) -> - {noresult, true}; -discover_dir(File, AppMeta, file) -> - is_valid_release(File, AppMeta). - --spec is_valid_release(file:name(), - [rcl_app_info:t()]) -> - {ok, rcl_release:t()} - | {error, Reason::term()} - | {noresult, false}. -is_valid_release(File, AppMeta) -> - case filename:extension(File) of - <<".rel">>-> - resolve_release(File, AppMeta); - _ -> - {noresult, false} - end. - -resolve_release(RelFile, AppMeta) -> - case file:consult(RelFile) of - {ok, [{release, {RelName, RelVsn}, - {erts, ErtsVsn}, - Apps}]} -> - build_release(RelFile, RelName, RelVsn, ErtsVsn, Apps, AppMeta); - {ok, InvalidRelease} -> - ?RCL_ERROR({invalid_release_information, InvalidRelease}); - {error, Reason} -> - ?RCL_ERROR({unable_to_read, RelFile, Reason}) - end. - -build_release(RelFile, RelName, RelVsn, ErtsVsn, Apps, AppMeta) -> - Release = rcl_release:erts(rcl_release:new(RelName, RelVsn, RelFile), - ErtsVsn), - resolve_apps(Apps, AppMeta, Release, []). - -resolve_apps([], _AppMeta, Release, Acc) -> - {ok, rcl_release:application_details(Release, Acc)}; -resolve_apps([AppInfo | Apps], AppMeta, Release, Acc) -> - AppName = erlang:element(1, AppInfo), - AppVsn = ec_semver:parse(erlang:element(2, AppInfo)), - case find_app(AppName, AppVsn, AppMeta) of - Error = {error, _} -> - Error; - ResolvedApp -> - resolve_apps(Apps, AppMeta, Release, [ResolvedApp | Acc]) - end. - -find_app(AppName, AppVsn, AppMeta) -> - case ec_lists:find(fun(App) -> - NAppName = rcl_app_info:name(App), - NAppVsn = rcl_app_info:vsn(App), - AppName == NAppName andalso - AppVsn == NAppVsn - end, AppMeta) of - {ok, Head} -> - Head; - error -> - ?RCL_ERROR({could_not_find, {AppName, AppVsn}}) - end. |