fix: update Canton formula to latest snapshot version and improve version validation in tests

Author: actions-user

Formula/canton.rb

@@ -3,9 +3,9 @@ class Canton < Formula
   homepage "https://www.canton.network/"
   license "Apache-2.0"
 
-  url "https://github.com/digital-asset/daml/releases/download/v3.4.0-snapshot.20250710.0/canton-open-source-3.4.0-snapshot.20250707.16366.0.vf80131e0.tar.gz"
-  sha256 "395d51792fbd1ac38e21754cf21a3cde094a149218707c00e0e0ab0a67aa3a8d"
-  version "3.4.0-snapshot.20250707.16366.0.vf80131e0"
+  url "https://github.com/digital-asset/daml/releases/download/v3.4.0-snapshot.20250723.0/canton-open-source-3.4.0-snapshot.20250715.16432.0.vcd4fe703.tar.gz"
+  sha256 "04f33ccadd9651b4be8fbbbd0c33039795a8ee86e3e07d2d9955200bce4ce74a"
+  version "3.4.0-snapshot.20250715.16432.0.vcd4fe703"
 
   # Java 11+ is required (recommend 17 for best compatibility)
   depends_on "openjdk@17" => :recommended
@@ -40,7 +40,7 @@ def caveats
 
     # Test that Java is available (required for Canton to run)
     java_version = shell_output("java -version 2>&1")
-    assert_match(/version "3.4.0-snapshot.20250707.16366.0.vf80131e0"/, java_version)
+    assert_match(/version "[1-9][0-9]"/, java_version)
 
     # Test that Canton can show help (basic functionality test)
     output = shell_output("#{bin}/canton --help 2>&1", 0)

update.sh

@@ -17,10 +17,10 @@ else
   echo "Current version: $CURRENT_VERSION"
 fi
 
-# Get top 5 releases from Digital Asset that contain Canton
+# Get top 5 releases from Digital Asset that contain Canton, prioritizing snapshots
 echo "Fetching top 5 Canton releases from Digital Asset..."
 ALL_RELEASES=$(curl -s "https://api.github.com/repos/digital-asset/daml/releases" | \
-  jq -r '[.[] | select(.assets[] | select(.name | contains("canton-open-source") and endswith(".tar.gz")))] | .[0:5]')
+  jq -r '[.[] | select(.assets[] | select(.name | contains("canton-open-source") and endswith(".tar.gz")))] | sort_by([.prerelease, .published_at]) | reverse | .[0:5]')
 
 if [ "$ALL_RELEASES" = "null" ] || [ "$ALL_RELEASES" = "[]" ]; then
   echo "No Canton releases found"
@@ -84,9 +84,10 @@ while IFS= read -r release; do
   # Cleanup temp file
   rm -f "$TEMP_FILE"
 
-  # Update formula with this version (only for the first/latest version)
-  if [ $PROCESSED_COUNT -eq 0 ]; then
-    echo "Updating Formula/canton.rb with latest version..."
+  # Update formula with the most recent pre-release if this is the first pre-release processed
+  IS_PRERELEASE=$(echo "$release" | jq -r '.prerelease')
+  if [ "$IS_PRERELEASE" = "true" ] && [ $PROCESSED_COUNT -eq 0 ]; then
+    echo "Updating Formula/canton.rb with most recent pre-release: DAML $DAML_TAG (Canton $CANTON_VERSION)..."
     # Use different sed syntax for macOS vs Linux
     if [[ "$OSTYPE" == "darwin"* ]]; then
       # macOS