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https://github.com/correl/rebar.git
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0a1961fb0d
Implemented, by moving upgrade functionality from install_upgrade.escript to nodetool, which already supports both short and long names. Make install_upgrade.escript as wrapper for nodetool for backward compatibility.
55 lines
1.9 KiB
Erlang
55 lines
1.9 KiB
Erlang
#!/usr/bin/env escript
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%%! -noshell -noinput
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%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
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%% ex: ft=erlang ts=4 sw=4 et
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%% This file is left for backward-compatibility.
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%% You, probably, shouldn't include it to new projects.
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main([NodeName, Cookie, ReleasePackage]) ->
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io:format("WARNING: 'install_upgrade.escript' is deprecated! "
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"Use 'nodetool upgrade' instead.~n"),
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NodeRoot = filename:dirname(filename:dirname(escript:script_name())),
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NodeTool = which_nodetool(NodeRoot),
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process_flag(trap_exit, true),
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Port = erlang:open_port(
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{spawn_executable, NodeTool},
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[{args, ["-sname", NodeName,
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"-setcookie", Cookie,
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"upgrade", ReleasePackage]},
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binary, exit_status, use_stdio, stderr_to_stdout, hide]),
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port_loop(Port);
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main(_) ->
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halt(1).
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which_nodetool(NodeRoot) ->
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%% ${RELEASE_ROOT}/
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%% bin/install_upgrade.escript
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%% bin/nodetool ?
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%% erts-<erts_ver>/bin/nodetool ?
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%% releases/<app_ver>/nodetool ?
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%% releases/start_erl.data
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{ok, Content} = file:read_file(filename:join([NodeRoot, "releases", "start_erl.data"])),
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[ErtsVsn, AppVsn] = binary:split(Content, <<" ">>),
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Probes = [
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filename:join([NodeRoot, "bin", "nodetool"]),
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filename:join([NodeRoot, <<"erts-", ErtsVsn/binary>>, "bin", "nodetool"]),
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filename:join([NodeRoot, "releases", AppVsn, "bin", "nodetool"])
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],
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case lists:dropwhile(fun(Path) -> not filelib:is_regular(Path) end, Probes) of
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[] ->
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io:format("ERROR: can't find 'nodetool' in ~p.~n", [Probes]),
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halt(2);
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[Path | _] ->
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Path
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end.
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port_loop(Port) ->
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receive
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{Port, {data, Data}} ->
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io:put_chars(Data),
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port_loop(Port);
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{Port, {exit_status, Status}} ->
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halt(Status)
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end.
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