Add new rule EC31: Prefer lighter formats for image files

CHANGELOG.md

@@ -9,9 +9,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-### Changed
 
-### Deleted
+## [1.6.2] - 2024-05-30
+
+### Added
+
+- EC31 rule : Prefer lighter formats for image files
 
 ## [1.6.1] - 2024-05-15
 

src/main/java/fr/greencodeinitiative/java/JavaCheckRegistrar.java

@@ -20,21 +20,7 @@
 import java.util.Collections;
 import java.util.List;
 
-import fr.greencodeinitiative.java.checks.ArrayCopyCheck;
-import fr.greencodeinitiative.java.checks.AvoidFullSQLRequest;
-import fr.greencodeinitiative.java.checks.AvoidGettingSizeCollectionInLoop;
-import fr.greencodeinitiative.java.checks.AvoidMultipleIfElseStatement;
-import fr.greencodeinitiative.java.checks.AvoidRegexPatternNotStatic;
-import fr.greencodeinitiative.java.checks.AvoidSQLRequestInLoop;
-import fr.greencodeinitiative.java.checks.AvoidSetConstantInBatchUpdate;
-import fr.greencodeinitiative.java.checks.AvoidSpringRepositoryCallInLoopOrStreamCheck;
-import fr.greencodeinitiative.java.checks.AvoidStatementForDMLQueries;
-import fr.greencodeinitiative.java.checks.AvoidUsageOfStaticCollections;
-import fr.greencodeinitiative.java.checks.FreeResourcesOfAutoCloseableInterface;
-import fr.greencodeinitiative.java.checks.IncrementCheck;
-import fr.greencodeinitiative.java.checks.InitializeBufferWithAppropriateSize;
-import fr.greencodeinitiative.java.checks.NoFunctionCallWhenDeclaringForLoop;
-import fr.greencodeinitiative.java.checks.OptimizeReadFileExceptions;
+import fr.greencodeinitiative.java.checks.*;
 import org.sonar.plugins.java.api.CheckRegistrar;
 import org.sonar.plugins.java.api.JavaCheck;
 import org.sonarsource.api.sonarlint.SonarLintSide;
@@ -62,7 +48,8 @@ public class JavaCheckRegistrar implements CheckRegistrar {
             InitializeBufferWithAppropriateSize.class,
             AvoidSetConstantInBatchUpdate.class,
             FreeResourcesOfAutoCloseableInterface.class,
-            AvoidMultipleIfElseStatement.class
+            AvoidMultipleIfElseStatement.class,
+            PreferLighterImageFormats.class
     );
 
     /**

src/main/java/fr/greencodeinitiative/java/checks/PreferLighterImageFormats.java

@@ -0,0 +1,62 @@
+/*
+ * ecoCode - Java language - Provides rules to reduce the environmental footprint of your Java programs
+ * Copyright © 2023 Green Code Initiative (https://www.ecocode.io)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.greencodeinitiative.java.checks;
+
+import java.util.Arrays;
+import java.util.List;
+import org.sonar.check.Rule;
+import org.sonar.plugins.java.api.IssuableSubscriptionVisitor;
+import org.sonar.plugins.java.api.tree.Tree;
+import org.sonar.plugins.java.api.tree.LiteralTree;
+import org.sonarsource.analyzer.commons.annotations.DeprecatedRuleKey;
+import org.sonar.api.utils.log.Logger;
+import org.sonar.api.utils.log.Loggers;
+
+@Rule(key = "EC31")
+@DeprecatedRuleKey(repositoryKey = "greencodeinitiative-java", ruleKey = "EC31")
+public class PreferLighterImageFormats extends IssuableSubscriptionVisitor {
+
+    private static final Logger LOGGER = Loggers.get(PreferLighterImageFormats.class);
+    private static final String MESSAGE = "Consider using lighter image formats like .webp or .avif instead of .jpg, .jpeg or .png";
+
+    private static final List<String> HEAVY_FORMATS = Arrays.asList(".jpg", ".jpeg", ".png");
+
+    @Override
+    public List<Tree.Kind> nodesToVisit() {
+        return Arrays.asList(Tree.Kind.STRING_LITERAL);
+    }
+
+    public void visitNode(Tree tree) {
+        if (tree.is(Tree.Kind.STRING_LITERAL)) {
+            LiteralTree literalTree = (LiteralTree) tree;
+            String value = literalTree.value();
+
+            // Remove the quotes around the literal value
+            if (value.length() > 2 && value.startsWith("\"") && value.endsWith("\"")) {
+                value = value.substring(1, value.length() - 1);
+            }
+
+            for (String format : HEAVY_FORMATS) {
+                if (value.endsWith(format)) {
+                    reportIssue(literalTree, MESSAGE);
+                    break;
+                }
+            }
+        }
+    }
+}

src/test/files/PreferLighterImageFormatsCheck.java

@@ -0,0 +1,56 @@
+/*
+ * ecoCode - Java language - Provides rules to reduce the environmental footprint of your Java programs
+ * Copyright © 2023 Green Code Initiative (https://www.ecocode.io)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.greencodeinitiative.java.checks;
+
+import java.util.logging.Logger;
+
+class PreferLighterImageFormatsCheck {
+
+    private static final Logger LOGGER = Logger.getLogger(PreferLighterImageFormatsCheck.class.getName());
+
+    public PreferLighterImageFormatsCheck(PreferLighterImageFormatsCheck checker) {
+    }
+
+
+    public void testDirectAssignments() {
+        String imagePath1 = "images/photo.jpg"; // Noncompliant
+        String imagePath2 = "images/graphic.png"; // Noncompliant
+        String imagePath3 = "images/photo.webp"; // Compliant
+        String imagePath4 = "images/graphic.avif"; // Compliant
+    }
+
+    public void testPathsInArray() {
+        String[] imagePaths = {
+                "assets/image1.jpg", // Noncompliant
+                "assets/image2.png", // Noncompliant
+                "assets/image3.webp", // Compliant
+                "assets/image4.avif" // Compliant
+        };
+
+        for (String imagePath : imagePaths) {
+            LOGGER.info("Image path: " + imagePath);
+        }
+    }
+
+    public void testPathsInMethods() {
+        logImagePath("icons/icon1.jpg"); // Noncompliant
+        logImagePath("icons/icon2.png"); // Noncompliant
+        logImagePath("icons/icon3.webp"); // Compliant
+        logImagePath("icons/icon4.avif"); // Compliant
+    }
+}

src/test/java/fr/greencodeinitiative/java/JavaCheckRegistrarTest.java

@@ -31,7 +31,7 @@ void checkNumberRules() {
         final JavaCheckRegistrar registrar = new JavaCheckRegistrar();
         registrar.register(context);
 
-        assertThat(context.checkClasses()).hasSize(15);
+        assertThat(context.checkClasses()).hasSize(16);
         assertThat(context.testCheckClasses()).isEmpty();
 
     }

src/test/java/fr/greencodeinitiative/java/JavaRulesDefinitionTest.java

@@ -46,7 +46,7 @@ void init() {
         RulesDefinition.Context context = new RulesDefinition.Context();
         rulesDefinition.define(context);
         repository = context.repository(rulesDefinition.repositoryKey());
-        rulesSize = 15;
+        rulesSize = 16;
     }
 
     @Test

src/test/java/fr/greencodeinitiative/java/checks/PreferLighterImageFormatsCheckTest.java

@@ -0,0 +1,33 @@
+/*
+ * ecoCode - Java language - Provides rules to reduce the environmental footprint of your Java programs
+ * Copyright © 2023 Green Code Initiative (https://www.ecocode.io)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.greencodeinitiative.java.checks;
+
+import org.junit.jupiter.api.Test;
+import org.sonar.java.checks.verifier.CheckVerifier;
+
+class PreferLighterImageFormatsCheckTest {
+
+    @Test
+    void test() {
+        CheckVerifier.newVerifier()
+                .onFile("src/test/files/PreferLighterImageFormatsCheck.java")
+                .withCheck(new PreferLighterImageFormats())
+                .verifyIssues();
+    }
+}
+