Automatically Bump Version

Author: rcosta358

release.sh

@@ -2,29 +2,51 @@
 
 set -euo pipefail
 
-if [ $# -ne 2 ]; then
-    echo "Usage: $0 <api|verifier> <version>"
+if [ $# -lt 1 ] || [ $# -gt 2 ]; then
+    echo "Usage: $0 <api|verifier> [version]"
     exit 1
 fi
 
 MODULE=$1
-VERSION=$2
+VERSION=${2:-}
 
 if [ "$MODULE" != "api" ] && [ "$MODULE" != "verifier" ]; then
     echo "Invalid module: $MODULE"
-    echo "Usage: $0 <api|verifier> <version>"
+    echo "Usage: $0 <api|verifier> [version]"
     exit 1
 fi
 
+MODULE_DIR="liquidjava-$MODULE"
+POM="$MODULE_DIR/pom.xml"
+
+if [ -z "$VERSION" ]; then
+    CURRENT_VERSION=$(perl -0ne "print \$1 if m#<artifactId>\\Q$MODULE_DIR\\E</artifactId>\\s*<version>([^<]+)</version>#" "$POM")
+
+    if [ -z "$CURRENT_VERSION" ]; then
+        echo "Could not read current version from $POM"
+        exit 1
+    fi
+
+    if ! [[ "$CURRENT_VERSION" =~ ^[0-9]+(\.[0-9]+){1,2}$ ]]; then
+        echo "Cannot automatically bump non-numeric version: $CURRENT_VERSION"
+        echo "Pass the release version explicitly."
+        exit 1
+    fi
+
+    IFS=. read -ra VERSION_PARTS <<<"$CURRENT_VERSION"
+    LAST_INDEX=$((${#VERSION_PARTS[@]} - 1))
+    VERSION_PARTS[$LAST_INDEX]=$((${VERSION_PARTS[$LAST_INDEX]} + 1))
+    VERSION=$(IFS=.; echo "${VERSION_PARTS[*]}")
+
+    echo "Bumping $MODULE_DIR from $CURRENT_VERSION to $VERSION"
+fi
+
 if ! [[ "$VERSION" =~ ^[0-9]+(\.[0-9]+){1,2}(-[A-Za-z0-9.-]+)?$ ]]; then
     echo "Invalid version: $VERSION"
     echo "Expected format: 1.2.3"
     exit 1
 fi
 
-MODULE_DIR="liquidjava-$MODULE"
-POM="$MODULE_DIR/pom.xml"
-
 if [ "$MODULE" = "api" ]; then
     TAG="api-v$VERSION"
 else
@@ -48,15 +70,15 @@ if git rev-parse "$TAG" >/dev/null 2>&1; then
     exit 1
 fi
 
+./mvnw -f "$POM" -B --fail-fast -Dgpg.skip=true -Dmaven.deploy.skip=true clean verify
+
 perl -0pi -e "s#(<artifactId>$MODULE_DIR</artifactId>\\s*<version>)[^<]+(</version>)#\${1}$VERSION\${2}#" "$POM"
 
 if git diff --quiet -- "$POM"; then
     echo "$POM is already at version $VERSION"
     exit 1
 fi
 
-./mvnw -f "$POM" -B --fail-fast -Dgpg.skip=true -Dmaven.deploy.skip=true clean verify
-
 git add "$POM"
 git commit -m "Release $MODULE_DIR $VERSION"
 git tag "$TAG"