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patchShebangs: create timestamp in tmp dir

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Creating the timestamp in the patched script's directory has a few
drawbacks:

* if "foo.timestamp" already exists, it will be overwritten
* it requires the directory to be writable
This commit is contained in:
Nicolas Mattia 2019-04-25 17:07:58 +02:00
parent 82f338b837
commit cc9b4029bc
1 changed files with 4 additions and 3 deletions
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7
pkgs/build-support/setup-hooks/patch-shebangs.sh
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@ -55,10 +55,11 @@ patchShebangs() {
# escape the escape chars so that sed doesn't interpret them # escape the escape chars so that sed doesn't interpret them
escapedInterpreterLine=$(echo "$newInterpreterLine" | sed 's|\\|\\\\|g') escapedInterpreterLine=$(echo "$newInterpreterLine" | sed 's|\\|\\\\|g')
# Preserve times, see: https://github.com/NixOS/nixpkgs/pull/33281 # Preserve times, see: https://github.com/NixOS/nixpkgs/pull/33281
touch -r "$f" "$f.timestamp" timestamp=$(mktemp)
touch -r "$f" "$timestamp"
sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f" sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f"
touch -r "$f.timestamp" "$f" touch -r "$timestamp" "$f"
rm "$f.timestamp" rm "$timestamp"
fi fi
fi fi
done done