97 lines
2.4 KiB
Bash
97 lines
2.4 KiB
Bash
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#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p dotnet-sdk_3 nixfmt
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# Run this script to generate deps.nix
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# ./create_deps.sh /path/to/package/source/checkout > deps.nix
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# Attribution: this script is shamelessly stolen and barely modified from
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# <nixpkgs>/pkgs/applications/blockchains/wasabibackend
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URLBASE="https://www.nuget.org/api/v2/package"
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DEPS_HEADER="
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{ fetchurl }:
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let
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nugetUrlBase = \"$URLBASE\";
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fetchNuGet = { name, version, sha256 }: fetchurl {
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inherit sha256;
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url = \"\${nugetUrlBase}/\${name}/\${version}\";
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};
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in ["
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DEPS_FOOTER="]"
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DEPS_TEMPLATE="
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(fetchNuGet {
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name = \"%s\";
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version = \"%s\";
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sha256 = \"%s\";
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})"
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function generate_restore_log() {
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checkout_path=$1
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>&2 echo "generating restore log for $checkout_path..."
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cd $checkout_path
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dotnet nuget locals all --clear
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dotnet restore -v normal --no-cache -r linux-x64
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cd -
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}
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function process_restore_log() {
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restore_log=$1
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>&2 echo "processing restore log..."
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while read line; do
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if echo $line | grep -q "^[[:space:]]*Installing"; then
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l=$(echo $line | xargs)
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l=${l#Installing }
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l=${l%.}
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echo $l
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fi
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done < $restore_log
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}
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function prefetch_deps() {
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processed_log=$1
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>&2 echo "prefetching deps..."
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while read line; do
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name=$(echo $line | cut -d' ' -f1)
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>&2 echo "prefetching '$name' version: $version"
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version=$(echo $line | cut -d' ' -f2)
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hash=$(nix-prefetch-url "$URLBASE/$name/$version" 2>/dev/null)
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echo "$name $version $hash"
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done < $processed_log
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}
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function generate_deps_expression() {
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packages=$1
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>&2 echo "generating deps nix-expression..."
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echo $DEPS_HEADER
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while read line; do
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name=$(echo $line | cut -d' ' -f1)
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version=$(echo $line | cut -d' ' -f2)
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hash=$(echo $line | cut -d' ' -f3)
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printf "$DEPS_TEMPLATE" $name $version $hash
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done < $packages
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echo $DEPS_FOOTER
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}
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function main() {
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checkout_path=$1
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tmpdir=$(mktemp -d)
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generate_restore_log $checkout_path > $tmpdir/restore.log
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process_restore_log $tmpdir/restore.log > $tmpdir/processed.log
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prefetch_deps $tmpdir/processed.log > $tmpdir/prefetched.log
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generate_deps_expression $tmpdir/prefetched.log > $tmpdir/deps.nix
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nixfmt $tmpdir/deps.nix
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cat $tmpdir/deps.nix
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rm -rf $tmpdir
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}
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if [ ! -d "$1" ]; then
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>&2 echo "First argument must be a directory, the path to the package source checkout"
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exit 1
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fi
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main $@
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