是否可以在 build.gradle 中为字符串执行 REGEX？

Question

I have the following line of code in my build.gradle at the app level

    applicationVariants.all { variant ->
    variant.resValue "string", "versionName", "Version " + variant.versionName
}

Is there a way to perform a regex and only grab a specific portion of the

variant.versionName

It returns me something like 2.56.2-alpharc and i want to remove everything except the numbers at the beginning to get 2.56.2

Answer 1

Sure you can. You can use a regular java code with regular expressions or some groovy specific code:

For java approach, something along:

    Pattern pattern = Pattern.compile("^(\\d+\\.\\d+\\.\\d+).*");
    Matcher matcher = pattern.matcher(variant.versionName);
    matcher.find()
    def strippedVersion = matcher.group(1)

For groovy approach:

    def matcher = variant.versionName =~ /^(\d+\.\d+\.\d+).*/
    matcher.find()
    def strippedVersion = matcher.group(1)