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bin/update_proton_ge

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+#!/bin/bash
+
+# make temp working directory
+mkdir /tmp/proton-ge-custom
+cd /tmp/proton-ge-custom
+
+# download tarball
+echo "Downloading tarball of latest release..."
+curl -sLOJ $(curl -s https://api.github.com/repos/GloriousEggroll/proton-ge-custom/releases/latest | grep browser_download_url | cut -d\" -f4 | egrep .tar.gz)
+
+# download checksum 
+echo "Downloading checksum..."
+curl -sLOJ $(curl -s https://api.github.com/repos/GloriousEggroll/proton-ge-custom/releases/latest | grep browser_download_url | cut -d\" -f4 | egrep .sha512sum) 
+
+# check tarball with checksum
+echo "Checking..."
+sha512sum -c *.sha512sum
+# if result is ok, continue
+
+# make steam directory if it does not exist
+mkdir -p ~/.steam/root/compatibilitytools.d
+
+# extract proton tarball to steam directory
+echo "Extracting to Steam folder..."
+tar -xf GE-Proton*.tar.gz -C ~/.steam/root/compatibilitytools.d/
+echo "All done :)"