diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rebar_utils.erl | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/rebar_utils.erl b/src/rebar_utils.erl index be16610..2a14503 100644 --- a/src/rebar_utils.erl +++ b/src/rebar_utils.erl @@ -384,14 +384,32 @@ otp_release1([$R,N|_]=Rel) when is_integer(N) -> %% If OTP >= 17.x, erlang:system_info(otp_release) returns just the %% major version number, we have to read the full version from %% a file. See http://www.erlang.org/doc/system_principles/versions.html +%% Read vsn strinf from the 'OTP_VERSION' file and return as list without +%% the "\n". otp_release1(Rel) -> File = filename:join([code:root_dir(), "releases", Rel, "OTP_VERSION"]), {ok, Vsn} = file:read_file(File), + %% NOTE: It's fine to rely on the binary module here because we %% can be sure that it's available when the otp_release string %% does not begin with $R. - %% Return as list without the "\n". - binary:bin_to_list(Vsn, {0, byte_size(Vsn) - 1}). + Size = byte_size(Vsn), + %% The shortest vsn string consists of at least two digits + %% followed by "\n". Therefore, it's safe to assume Size >= 3. + case binary:part(Vsn, {Size, -3}) of + <<"**\n">> -> + %% The OTP documentation mentions that a system patched + %% using the otp_patch_apply tool available to licensed + %% customers will leave a '**' suffix in the version as a + %% flag saying the system consists of application versions + %% from multiple OTP versions. We ignore this flag and + %% drop the suffix, given for all intents and purposes, we + %% cannot obtain relevant information from it as far as + %% tooling is concerned. + binary:bin_to_list(Vsn, {0, Size - 3}); + _ -> + binary:bin_to_list(Vsn, {0, Size - 1}) + end. get_deprecated_3(Get, Config, OldOpt, NewOpt, Default, When) -> case Get(Config, NewOpt, Default) of |