convert custom script into overlay

2025-11-12 00:33:56 +01:00
parent 158ac4f91b
commit f94a507db4
3 changed files with 15 additions and 4 deletions
--- a/nuget-to-json.sh
+++ b/nuget-to-json.sh
@@ -0,0 +1,115 @@
+#!@runtimeShell@
+# shellcheck shell=bash
+
+set -euo pipefail
+shopt -s nullglob
+
+export SSL_CERT_FILE=@cacert@/etc/ssl/certs/ca-bundle.crt
+export PATH="@binPath@:$PATH"
+# used for glob ordering of package names
+export LC_ALL=C
+
+if [ $# -eq 0 ]; then
+    >&2 echo "Usage: $0 <packages directory> [path to a file with a list of excluded packages] > deps.json"
+    exit 1
+fi
+
+pkgs=$1
+tmp=$(realpath "$(mktemp -td nuget-to-json.XXXXXX)")
+trap 'rm -r "$tmp"' EXIT
+
+excluded_list=$(realpath "${2:-/dev/null}")
+
+export DOTNET_NOLOGO=1
+export DOTNET_CLI_TELEMETRY_OPTOUT=1
+
+mapfile -t sources < <(dotnet nuget list source --format short | awk '/^E / { print $2 }')
+wait "$!"
+
+declare -a remote_sources
+declare -A base_addresses
+
+for index in "${sources[@]}"; do
+    if [[ -d "$index" ]]; then
+        continue
+    fi
+
+    remote_sources+=("$index")
+
+    index_response=$(
+        if [[ "$index" =~ .*dev\.azure\.com.* ]] && [ -n "$NUGET_PAT" ]; then
+            curl --anyauth -u "user:$NUGET_PAT" --netrc-optional --compressed -fsSL "$index"
+        else
+            curl --netrc-optional --compressed -fsSL "$index"
+        fi
+    )
+    base_address=$(
+        echo "$index_response" | jq -r '.resources[] | select(."@type" == "PackageBaseAddress/3.0.0")."@id"'
+    )
+    if [[ ! "$base_address" == */ ]]; then
+        base_address="$base_address/"
+    fi
+    base_addresses[$index]="$base_address"
+done
+
+(
+    echo '['
+
+    first=true
+    cd "$pkgs"
+    for package in *; do
+        [[ -d "$package" ]] || continue
+        cd "$package"
+        for version in *; do
+            id=$(xmlstarlet sel -t -v /_:package/_:metadata/_:id "$version"/*.nuspec)
+
+            if grep -qxF "$id.$version.nupkg" "$excluded_list"; then
+                continue
+            fi
+
+            # packages in the nix store should have an empty metadata file
+            # packages installed with 'dotnet tool' may be missing 'source'
+            used_source="$(jq -r 'if has("source") then .source elif has("contentHash") then "__unknown" else "" end' "$version"/.nupkg.metadata)"
+            found=false
+
+            if [[ -z "$used_source" || -d "$used_source" ]]; then
+                continue
+            fi
+
+            for source in "${remote_sources[@]}"; do
+                url="${base_addresses[$source]}$package/$version/$package.$version.nupkg"
+                if [[ "$source" == "$used_source" ]]; then
+                    hash="$(nix-hash --type sha256 --flat --sri "$version/$package.$version".nupkg)"
+                    found=true
+                    break
+                else
+                    # do nothing if the package does not already exist
+                    # locally, since nix-prefetch-url does not handle authentication
+                    :
+                fi
+            done
+
+            if [[ $found = false ]]; then
+                echo "couldn't find $package $version" >&2
+                exit 1
+            fi
+
+            if [[ $first = false ]]; then
+                echo '  , {'
+            else
+                echo '  {'
+            fi
+            echo "    \"pname\": \"$id\""
+            echo "    , \"version\": \"$version\""
+            echo "    , \"hash\": \"$hash\""
+            if [[ "$source" != https://api.nuget.org/v3/index.json ]]; then
+                echo "    , \"url\": \"$url\""
+            fi
+            echo '  }'
+            first=false
+        done
+        cd ..
+    done
+
+    echo ']'
+) | jq .