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ft: helper function for accessing credentials directory #42

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merged 1 commit into from
Sep 26, 2024
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ft: helper function for accessing credentials directory #42

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22 changes: 21 additions & 1 deletion src/systemd.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,8 @@
store_fds/1,
clear_fds/1,
booted/0,
is_journal/1
is_journal/1,
credentials/1
]).

-export([notify_spawn/2]).
Expand Down Expand Up @@ -403,6 +404,25 @@

%% ----------------------------------------------------------------------------

%% @doc
%% Returns path for credentials file.
%%
%% Returns `error' when there is no `$CREDENTIALS_DIRECTORY' environment
%% variable, `{ok, Path}' otherwise.
%%
%% For details see [https://systemd.io/CREDENTIALS/]
%%
%% @since 0.7.0
%% @end
credentials(Name) ->
case os:getenv("CREDENTIALS_DIRECTORY") of
false -> error;

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Dir ->
{ok, filename:join(Dir, Name)}

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end.

%% ----------------------------------------------------------------------------

%% @doc
%% Returns list of file descriptors passed to the application by systemd.
%%
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