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Fix Dialyzer (race condition) warning

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This commit is contained in:
Tuncer Ayaz 2012-02-02 22:50:32 +01:00
parent fe1652e137
commit a176db6937
1 changed files with 5 additions and 4 deletions
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9
src/rebar_utils.erl
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@ -190,10 +190,11 @@ expand_env_variable(InStr, VarName, RawVarValue) ->
vcs_vsn(Vcs, Dir) ->
Key = {Vcs, Dir},
case ets:lookup(rebar_vsn_cache, Key) of
[{Key, VsnString}] ->
VsnString;
[] ->
try ets:lookup_element(rebar_vsn_cache, Key, 2) of
VsnString ->
VsnString
catch
error:badarg ->
VsnString = vcs_vsn_1(Vcs, Dir),
ets:insert(rebar_vsn_cache, {Key, VsnString}),
VsnString