Install tools into RUNNER_TEMP/.setup-elixir

src/install-elixir

@@ -2,7 +2,7 @@
 
 set -eo pipefail
 
-cd /tmp
+cd $RUNNER_TEMP
 
 wget -q https://repo.hex.pm/builds/elixir/${1}${2}.zip
 unzip -d .setup-elixir/elixir ${1}${2}.zip

src/install-otp

@@ -2,7 +2,7 @@
 
 set -eo pipefail
 
-cd /tmp
+cd $RUNNER_TEMP
 
 wget -q -O otp.tar.gz https://repo.hex.pm/builds/otp/ubuntu-14.04/OTP-${1}.tar.gz
 mkdir -p .setup-elixir/otp

src/setup-elixir.js

@@ -33,7 +33,7 @@ async function main() {
   await installElixir(elixirVersion, otpMajor)
   console.log(`##[endgroup]`)
 
-  process.env.PATH = `/tmp/.setup-elixir/elixir/bin:/tmp/.setup-elixir/otp/bin:${process.env.PATH}`
+  process.env.PATH = `${process.env.RUNNER_TEMP}/.setup-elixir/elixir/bin:${process.env.RUNNER_TEMP}/.setup-elixir/otp/bin:${process.env.PATH}`
 
   if (installRebar === 'true') await exec('mix local.rebar --force')
   if (installHex === 'true') await exec('mix local.hex --force')