Make the script work from command line without cloning the repo using curl and update README.md

Author: jormundur00

README.md

@@ -13,6 +13,11 @@ To see whether your library or framework is supported, visit [this page](https:/
 If you’d like yours to appear there as well, open a pull request updating [this JSON file](https://github.com/oracle/graalvm-reachability-metadata/blob/master/library-and-framework-list.json).  
 Before submitting a pull request, please read [this guide](docs/CONTRIBUTING.md#tested-libraries-and-frameworks).
 
+You can also check if metadata for a library exists on the repository directly from your terminal without cloning it using:
+```
+curl -sSL https://raw.githubusercontent.com/oracle/graalvm-reachability-metadata/master/check-library-support.sh | bash -s "<groupId>:<artifactId>:<version>"
+```
+
 ### 📚 Request Support for a New Library
 
 Open a [library-request ticket](https://github.com/oracle/graalvm-reachability-metadata/issues/new?template=01_support_new_library.yml), include the Maven coordinates, and our automation will take it from there (🤖).

check-library-support.sh

@@ -2,25 +2,33 @@
 set -euo pipefail
 
 if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <groupId:artifactId:version>"
+    echo "Usage: $0 <groupId>:<artifactId>:<version>"
     exit 1
 fi
 
 GAV="$1"
 IFS=':' read -r GROUP ARTIFACT VERSION <<< "$GAV"
 
-INDEX_FILE="metadata/$GROUP/$ARTIFACT/index.json"
+REMOTE_BASE_URL="https://raw.githubusercontent.com/oracle/graalvm-reachability-metadata/master/metadata"
+REMOTE_INDEX_URL="$REMOTE_BASE_URL/$GROUP/$ARTIFACT/index.json"
 
-if [ ! -f "$INDEX_FILE" ]; then
+INDEX_CONTENT=$(curl -fsSL "$REMOTE_INDEX_URL" 2>/dev/null || true)
+
+if [[ -z "$INDEX_CONTENT" ]]; then
     echo "Library $GAV is NOT supported by the GraalVM Reachability Metadata repository."
     exit 1
 fi
 
-# Check if the version exists in any tested-versions (exact match)
-MATCH=$(jq --arg ver "$VERSION" 'any(.[]["tested-versions"][]?; . == $ver)' "$INDEX_FILE")
+FOUND=$(
+    awk -v ver="$VERSION" '
+      /"tested-versions"[[:space:]]*:/ {inside=1; next}
+      inside && /\]/ {inside=0}
+      inside && $0 ~ "\"" ver "\"" {print "yes"}
+    ' <<< "$INDEX_CONTENT"
+)
 
-if [ "$MATCH" = "true" ]; then
-    echo "Library $GAV is supported by the GraalVM Reachability Metadata repository.️"
+if [ "$FOUND" = "yes" ]; then
+    echo "Library $GAV is supported by the GraalVM Reachability Metadata repository."
 else
     echo "Library $GAV is NOT supported by the GraalVM Reachability Metadata repository."
 fi