spring UpgradeApplicator 源码
springboot UpgradeApplicator 代码
文件路径:/buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/UpgradeApplicator.java
/*
* Copyright 2012-2022 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.springframework.boot.build.bom.bomr;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* {@code UpgradeApplicator} is used to apply an {@link Upgrade}. Modifies the bom
* configuration in the build file or a version property in {@code gradle.properties}.
*
* @author Andy Wilkinson
*/
class UpgradeApplicator {
private final Path buildFile;
private final Path gradleProperties;
UpgradeApplicator(Path buildFile, Path gradleProperties) {
this.buildFile = buildFile;
this.gradleProperties = gradleProperties;
}
Path apply(Upgrade upgrade) throws IOException {
String buildFileContents = Files.readString(this.buildFile);
Matcher matcher = Pattern.compile("library\\(\"" + upgrade.getLibrary().getName() + "\", \"(.+)\"\\)")
.matcher(buildFileContents);
if (!matcher.find()) {
matcher = Pattern
.compile("library\\(\"" + upgrade.getLibrary().getName() + "\"\\) \\{\\s+version\\(\"(.+)\"\\)",
Pattern.MULTILINE)
.matcher(buildFileContents);
if (!matcher.find()) {
throw new IllegalStateException("Failed to find definition for library '"
+ upgrade.getLibrary().getName() + "' in bom '" + this.buildFile + "'");
}
}
String version = matcher.group(1);
if (version.startsWith("${") && version.endsWith("}")) {
updateGradleProperties(upgrade, version);
return this.gradleProperties;
}
else {
updateBuildFile(upgrade, buildFileContents, matcher.start(1), matcher.end(1));
return this.buildFile;
}
}
private void updateGradleProperties(Upgrade upgrade, String version) throws IOException {
String property = version.substring(2, version.length() - 1);
String gradlePropertiesContents = Files.readString(this.gradleProperties);
String modified = gradlePropertiesContents.replace(
property + "=" + upgrade.getLibrary().getVersion().getVersion(), property + "=" + upgrade.getVersion());
overwrite(this.gradleProperties, modified);
}
private void updateBuildFile(Upgrade upgrade, String buildFileContents, int versionStart, int versionEnd)
throws IOException {
String modified = buildFileContents.substring(0, versionStart) + upgrade.getVersion()
+ buildFileContents.substring(versionEnd);
overwrite(this.buildFile, modified);
}
private void overwrite(Path target, String content) throws IOException {
Files.writeString(target, content, StandardOpenOption.WRITE, StandardOpenOption.TRUNCATE_EXISTING);
}
}
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- 本文标签: Spring Boot Java Spring
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