org.openrewrite.gradle.DependencyUseStringNotation Maven / Gradle / Ivy
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/*
* Copyright 2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openrewrite.gradle;
import org.openrewrite.ExecutionContext;
import org.openrewrite.Preconditions;
import org.openrewrite.Recipe;
import org.openrewrite.TreeVisitor;
import org.openrewrite.groovy.GroovyVisitor;
import org.openrewrite.groovy.tree.G;
import org.openrewrite.internal.lang.Nullable;
import org.openrewrite.java.MethodMatcher;
import org.openrewrite.java.tree.Expression;
import org.openrewrite.java.tree.J;
import org.openrewrite.java.tree.JavaType;
import org.openrewrite.java.tree.Space;
import org.openrewrite.marker.Markers;
import java.util.*;
import static org.openrewrite.Tree.randomId;
public class DependencyUseStringNotation extends Recipe {
@Override
public String getDisplayName() {
return "Use `String` notation for Gradle dependency declarations";
}
@Override
public String getDescription() {
return "In Gradle, dependencies can be expressed as a `String` like `\"groupId:artifactId:version\"`, " +
"or equivalently as a `Map` like `group: 'groupId', name: 'artifactId', version: 'version'`. " +
"This recipe replaces dependencies represented as `Maps` with an equivalent dependency represented as a `String`.";
}
@Override
public TreeVisitor getVisitor() {
final MethodMatcher dependencyDsl = new MethodMatcher("DependencyHandlerSpec *(..)");
return Preconditions.check(new IsBuildGradle<>(), new GroovyVisitor() {
@Override
public J visitMethodInvocation(J.MethodInvocation method, ExecutionContext ctx) {
J.MethodInvocation m = (J.MethodInvocation) super.visitMethodInvocation(method, ctx);
if (!dependencyDsl.matches(m)) {
return m;
}
if (m.getArguments().isEmpty()) {
return m;
}
Map mapNotation = new HashMap<>();
if (m.getArguments().get(0) instanceof G.MapLiteral) {
G.MapLiteral arg = (G.MapLiteral) m.getArguments().get(0);
for (G.MapEntry entry : arg.getElements()) {
if (entry.getKey() instanceof J.Literal) {
J.Literal key = (J.Literal) entry.getKey();
if (key.getType() == JavaType.Primitive.String) {
mapNotation.put((String) key.getValue(), entry.getValue());
}
}
}
J.Literal stringNotation = toLiteral(arg.getPrefix(), arg.getMarkers(), mapNotation);
if (stringNotation == null) {
return m;
}
Expression lastArg = m.getArguments().get(m.getArguments().size() - 1);
if (lastArg instanceof J.Lambda) {
m = m.withArguments(Arrays.asList(stringNotation, lastArg));
} else {
m = m.withArguments(Collections.singletonList(stringNotation));
}
} else if (m.getArguments().get(0) instanceof G.MapEntry) {
G.MapEntry firstEntry = (G.MapEntry) m.getArguments().get(0);
Space prefix = firstEntry.getPrefix();
Markers markers = firstEntry.getMarkers();
for (Expression e : m.getArguments()) {
if (e instanceof G.MapEntry) {
G.MapEntry entry = (G.MapEntry) e;
if (entry.getKey() instanceof J.Literal) {
J.Literal key = (J.Literal) entry.getKey();
if (key.getType() == JavaType.Primitive.String) {
mapNotation.put((String) key.getValue(), entry.getValue());
}
}
}
}
J.Literal stringNotation = toLiteral(prefix, markers, mapNotation);
if (stringNotation == null) {
return m;
}
Expression lastArg = m.getArguments().get(m.getArguments().size() - 1);
if (lastArg instanceof J.Lambda) {
m = m.withArguments(Arrays.asList(stringNotation, lastArg));
} else {
m = m.withArguments(Collections.singletonList(stringNotation));
}
}
return m;
}
private @Nullable J.Literal toLiteral(Space prefix, Markers markers, Map mapNotation) {
if (mapNotation.containsKey("group") && mapNotation.containsKey("name")) {
String stringNotation = "";
String group = coerceToStringNotation(mapNotation.get("group"));
if (group != null) {
stringNotation += group;
}
String name = coerceToStringNotation(mapNotation.get("name"));
if (name != null) {
stringNotation += ":" + name;
}
String version = coerceToStringNotation(mapNotation.get("version"));
if (version != null) {
stringNotation += ":" + version;
String classifier = coerceToStringNotation(mapNotation.get("classifier"));
if (classifier != null) {
stringNotation += ":" + classifier;
}
}
return new J.Literal(randomId(), prefix, markers, stringNotation, "\"" + stringNotation + "\"", Collections.emptyList(), JavaType.Primitive.String);
}
return null;
}
private @Nullable String coerceToStringNotation(Expression expression) {
if (expression instanceof J.Literal) {
return (String) ((J.Literal) expression).getValue();
} else if (expression instanceof J.Identifier) {
return "$" + ((J.Identifier) expression).getSimpleName();
} else if (expression instanceof G.GString) {
List str = ((G.GString) expression).getStrings();
StringBuilder sb = new StringBuilder();
for (J valuePart : str) {
if (valuePart instanceof Expression) {
sb.append(coerceToStringNotation((Expression) valuePart));
} else if (valuePart instanceof G.GString.Value) {
J tree = ((G.GString.Value) valuePart).getTree();
if (tree instanceof Expression) {
sb.append(coerceToStringNotation((Expression) tree));
}
//Can it be something else? If so, what?
}
}
return sb.toString();
}
return null;
}
});
}
}