40 lines
1 KiB
Bash
Executable file
40 lines
1 KiB
Bash
Executable file
#!/bin/bash -e
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action="$1"
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oldversion="$2"
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if [ "$action" != configure ]; then
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exit 0
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fi
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target_checksum="39cd17718e838823c80be0ddfc9763d88e32c1b0"
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echo "Target checksum $target_checksum"
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echo "Checking /data/system.img"
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current_checksum="$(sha1sum /data/system.img | cut -d' ' -f1)"
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echo "Checksum $current_checksum"
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if [ "$target_checksum" == "$current_checksum" ];
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then
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echo "Android system image upto date"
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exit 0
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else
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tempfile="$(mktemp)"
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rm $tempfile
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echo "Downloading new Android system image"
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curl https://gemian.thinkglobally.org/system/system.$target_checksum.img.xz --output $tempfile.xz
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xz -d $tempfile.xz
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downloaded_checksum="$(sha1sum $tempfile | cut -d' ' -f1)"
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if [ "$target_checksum" == "$downloaded_checksum" ];
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then
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echo "Moving new system image into place, please reboot to activate"
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mv $tempfile /data/system.img
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exit 0
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else
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echo "Downloaded checksum fail - check your internet for random errors or man in the middle attacks and retry"
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exit 1
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fi
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fi
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