java - 共享的Gradle脚本中如何配置一些私密信息

Question

有一个Github上的开源Java项目，使用Gradle构建。现在需要发布到Maven中央仓库，其中需要配置一些中央仓库的用户、密码、签名等信息。这些都是私密信息，直接贴build脚本里面放在Github上肯定是不合适的。
Google了很久找到一个解决办法，在项目目录下创建gradle.properties文件。存放用户名密码信息，但实际值为空：

version=0.4.5-SNAPSHOT
signing.keyId=
signing.password=
signing.secretKeyRingFile=
ossrhUsername=
ossrhPassword=

现在只有一个问题，在使用travis-ci自动构建的时候，提示错误：

:signArchives FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Could not evaluate onlyIf predicate for task ':signArchives'.
> Neither path nor baseDir may be null or empty string. path='' basedir='/home/travis/build/xyalan/marathon-cli'
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED

我的build脚本部分内容：

artifacts {
    archives javadocJar, sourcesJar
}

ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
signing {
    required {
        boolean signed =  isReleaseVersion && gradle.taskGraph.hasTask("uploadArchives")
        print signed
        signed
    }
    sign configurations.archives
}

uploadArchives {
    repositories {
        mavenDeployer {
            beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }

            repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
                authentication(userName: ossrhUsername, password: ossrhPassword)
            }

            snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
                authentication(userName: ossrhUsername, password: ossrhPassword)
            }

            pom.project {
                name 'marathon-cli'
                packaging 'jar'
                // optionally artifactId can be defined here
                description 'A application used as an example on how to set up pushing  its components to the Central Repository.'
                url 'http://www.example.com/example-application'

                scm {
                    connection 'scm:git:git://github.com/xyalan/marathon-cli.git'
                    developerConnection 'scm:git:git@github.com:xyalan/marathon-cli.git'
                    url 'https://github.com/xyalan/marathon-cli'
                }

                licenses {
                    license {
                        name 'The Apache License, Version 2.0'
                        url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
                    }
                }

                developers {
                    developer {
                        id 'alan'
                        name 'Alan Yang'
                        email 'alanlhy@gmail.com'
                    }
                }
            }
        }
    }

请问这个如何配置这个路径信息？

Answer 1

Using placeholders directly should be the easiest way:
Fill in private information in the gradle.properties file, such as username and password:

username=
password=

Then use ${username}, ${password} directly in the build script instead. However, this method requires the user to configure their own gradle.properties. If not configured, the placeholder will not be found

Answer 2

See you mentioned travi-ci,
travis has two encryption commands used to process sensitive information in the project

# 加密命令需要登录后在项目目录执行，travis 网站说加密得到 linux 或 mac 上执行
gem install travis # 需要ruby才能有gem
travis login
# 加密环境变量或者文件
travis encrypt env.global.PASSWORD=your_password --add # 添加环境变量 PASSWORD 到 .travis.yml，程序中直接使用环境变量
travis encrypt-file secret-file  --add

Reference:

• https://docs.travis-ci.com/us...

• https://docs.travis-ci.com/us...

• https://uedsky.com/2016-06/tr...

Answer 3

Save private content into files and add the files to .ignore, such as this article "Gradle in action: Publish aar packages to maven warehouse"

Answer 4

gradle-nexus-plugin

Credentials
In your ~/.gradle/gradle.properties you will need to set the mandatory Nexus credentials required for uploading your artifacts.
Plug-ins like the one above place the user password in the ~ directory by default.

AlsoGradle最大的一个优点就是灵活，因为是采用groovy脚本直接编写的，所以你可以任何加载任何目录下的配置文件。比如在脚本中直接使用PropertiesIt is OK to read files in a directory and encrypt them in the specified format or otherwise.