105 lines
2.7 KiB
Bash
105 lines
2.7 KiB
Bash
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#!@runtimeShell@
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set -euo pipefail
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shopt -s nullglob
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export PATH="@binPath@"
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# used for glob ordering of package names
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export LC_ALL=C
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if [ $# -eq 0 ]; then
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>&2 echo "Usage: $0 <packages directory> [path to a file with a list of excluded packages] > deps.nix"
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exit 1
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fi
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pkgs=$1
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tmp=$(realpath "$(mktemp -td nuget-to-nix.XXXXXX)")
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trap 'rm -r "$tmp"' EXIT
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excluded_list=$(realpath "${2:-/dev/null}")
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export DOTNET_NOLOGO=1
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export DOTNET_CLI_TELEMETRY_OPTOUT=1
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mapfile -t sources < <(dotnet nuget list source --format short | awk '/^E / { print $2 }')
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declare -a remote_sources
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declare -A base_addresses
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for index in "${sources[@]}"; do
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if [[ -d "$index" ]]; then
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continue
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fi
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remote_sources+=($index)
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base_address=$(
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curl --compressed --netrc -fsL "$index" | \
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jq -r '.resources[] | select(."@type" == "PackageBaseAddress/3.0.0")."@id"')
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if [[ ! "$base_address" == */ ]]; then
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base_address="$base_address/"
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fi
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base_addresses[$index]="$base_address"
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done
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echo "{ fetchNuGet }: ["
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cd "$pkgs"
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for package in *; do
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[[ -d "$package" ]] || continue
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cd "$package"
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for version in *; do
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id=$(xq -r .package.metadata.id "$version"/*.nuspec)
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if grep -qxF "$id.$version.nupkg" "$excluded_list"; then
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continue
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fi
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used_source="$(jq -r '.source' "$version"/.nupkg.metadata)"
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found=false
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if [[ -d "$used_source" ]]; then
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continue
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fi
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for source in "${remote_sources[@]}"; do
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url="${base_addresses[$source]}$package/$version/$package.$version.nupkg"
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if [[ "$source" == "$used_source" ]]; then
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sha256="$(nix-hash --type sha256 --flat --base32 "$version/$package.$version".nupkg)"
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found=true
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break
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else
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if sha256=$(nix-prefetch-url "$url" 2>"$tmp"/error); then
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# If multiple remote sources are enabled, nuget will try them all
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# concurrently and use the one that responds first. We always use the
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# first source that has the package.
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echo "$package $version is available at $url, but was restored from $used_source" 1>&2
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found=true
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break
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else
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if ! grep -q 'HTTP error 404' "$tmp/error"; then
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cat "$tmp/error" 1>&2
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exit 1
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fi
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fi
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fi
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done
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if [[ $found = false ]]; then
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echo "couldn't find $package $version" >&2
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exit 1
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fi
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if [[ "$source" != https://api.nuget.org/v3/index.json ]]; then
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echo " (fetchNuGet { pname = \"$id\"; version = \"$version\"; sha256 = \"$sha256\"; url = \"$url\"; })"
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else
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echo " (fetchNuGet { pname = \"$id\"; version = \"$version\"; sha256 = \"$sha256\"; })"
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fi
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done
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cd ..
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done
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cat << EOL
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]
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EOL
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