128 lines
5.7 KiB
Java
128 lines
5.7 KiB
Java
package com.codechecker.analyzer;
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import com.codechecker.config.AppConfig;
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import com.codechecker.git.GitChangeScanner;
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import com.codechecker.model.ChangedClassFile;
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import com.codechecker.model.ClassChangeKind;
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import com.codechecker.model.ClassChangeReport;
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import com.codechecker.model.FieldChange;
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import com.codechecker.model.FieldInfo;
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import com.codechecker.parser.ClassDeclParser;
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import com.codechecker.parser.ClassFieldParser;
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import java.io.IOException;
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import java.nio.file.Path;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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/**
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* 编排 git 扫描、字段 diff、影响分析，生成待通知的 ClassChangeReport 列表。
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*/
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public class ClassChangeAnalyzer {
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private final GitChangeScanner gitScanner;
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private final ClassFieldParser classFieldParser = new ClassFieldParser();
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private final FieldDiffEngine fieldDiffEngine = new FieldDiffEngine();
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private final ImpactAnalyzer impactAnalyzer = new ImpactAnalyzer();
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private final ClassDeclParser classDeclParser = new ClassDeclParser();
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public ClassChangeAnalyzer(GitChangeScanner gitScanner) {
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this.gitScanner = gitScanner;
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}
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/** 扫描变更文件并逐条分析，无实质变更的 MODIFIED 会被跳过 */
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public List<ClassChangeReport> analyze(Path repoRoot, AppConfig config, String oldSha, String newSha,
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Map<String, com.codechecker.model.ApiEndpoint> endpointIndex) throws IOException {
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List<ChangedClassFile> changedFiles = gitScanner.scanChangedClasses(oldSha, newSha);
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List<ClassChangeReport> reports = new ArrayList<>();
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for (ChangedClassFile changedFile : changedFiles) {
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if (changedFile.getStatus() == ChangedClassFile.ChangeStatus.DELETED) {
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reports.add(analyzeDeleted(changedFile, config, repoRoot, oldSha, endpointIndex));
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continue;
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}
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ClassChangeReport report = analyzeModifiedOrRenamed(changedFile, config, repoRoot, oldSha, newSha, endpointIndex);
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if (report != null) {
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reports.add(report);
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}
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}
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return reports;
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}
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/** 处理删除：标记 DELETED 并分析影响（基于旧源码） */
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private ClassChangeReport analyzeDeleted(ChangedClassFile changedFile, AppConfig config, Path repoRoot,
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String oldSha, Map<String, com.codechecker.model.ApiEndpoint> endpointIndex)
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throws IOException {
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String path = changedFile.getRelativePath();
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String oldSource = gitScanner.readFileAtCommit(oldSha, path);
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String classDescription = classDeclParser.extractClassDescription(
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oldSource, changedFile.getClassName());
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ClassChangeReport report = new ClassChangeReport(
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changedFile.getClassName(),
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null,
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changedFile.getClassType(),
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ClassChangeKind.DELETED,
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path,
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config.isDtoEntityConversionEnabled(),
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classDescription
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);
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impactAnalyzer.analyze(report, endpointIndex, config, repoRoot, oldSource, oldSource);
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return report;
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}
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/** 处理修改/重命名：字段 diff → 判定 changeKind → 影响分析 */
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private ClassChangeReport analyzeModifiedOrRenamed(ChangedClassFile changedFile, AppConfig config,
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Path repoRoot, String oldSha, String newSha,
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Map<String, com.codechecker.model.ApiEndpoint> endpointIndex)
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throws IOException {
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String oldPath = changedFile.pathForOldCommit();
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String newPath = changedFile.getRelativePath();
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String oldSource = gitScanner.readFileAtCommit(oldSha, oldPath);
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String newSource = gitScanner.readFileAtCommit(newSha, newPath);
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if (newSource == null || newSource.isBlank()) {
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newSource = gitScanner.readFileAtHead(newPath);
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}
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String oldFallback = ClassDeclParser.classNameFromPath(oldPath);
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String newFallback = ClassDeclParser.classNameFromPath(newPath);
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String oldClassName = changedFile.getOldClassName() != null
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? changedFile.getOldClassName()
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: classDeclParser.resolveClassName(oldSource, oldFallback);
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String newClassName = classDeclParser.resolveClassName(newSource, newFallback);
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List<FieldInfo> oldFields = classFieldParser.parseFields(oldSource, oldClassName);
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List<FieldInfo> newFields = classFieldParser.parseFields(newSource, newClassName);
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List<FieldChange> fieldChanges = fieldDiffEngine.diff(oldFields, newFields);
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boolean renamed = !oldClassName.equals(newClassName);
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ClassChangeKind changeKind;
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if (renamed && fieldChanges.isEmpty()) {
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changeKind = ClassChangeKind.RENAME_ONLY;
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} else if (renamed) {
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changeKind = ClassChangeKind.RENAME_AND_FIELDS;
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} else if (!fieldChanges.isEmpty()) {
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changeKind = ClassChangeKind.FIELDS_ONLY;
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} else {
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return null;
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}
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String classDescription = classDeclParser.extractClassDescription(newSource, newClassName);
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ClassChangeReport report = new ClassChangeReport(
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newClassName,
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renamed ? oldClassName : null,
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changedFile.getClassType(),
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changeKind,
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newPath,
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config.isDtoEntityConversionEnabled(),
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classDescription
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);
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fieldChanges.forEach(report::addFieldChange);
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impactAnalyzer.analyze(report, endpointIndex, config, repoRoot, newSource, oldSource);
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return report;
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}
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}
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