git.gradle

ext.gitBranch = {
    def branchFile = new File(rootProject.projectDir, ".git")
    if (branchFile.exists() == false) {
        return null
    }

    def result = "git -C $rootProject.projectDir rev-parse --abbrev-ref HEAD".execute().text.replace('\n', '')

    // special case for jenkins pipeline jobs
    if (result == null || result != "HEAD") {
        return result;
    }
    def revParseHead = "git -C $rootProject.projectDir rev-parse HEAD".execute().text.replace('\n', '')
    def heads = "git -C $rootProject.projectDir ls-remote --heads origin".execute().text
    def head = heads.split("\n").findAll { it.startsWith(revParseHead) }[0]
    def prefix = "refs/heads/"
    println "heads: ---${heads}---"
    println "head: ---${head}---"
    if (head == null) {
        return null
    }
    return head.substring(head.indexOf(prefix) + prefix.length())
}

ext.hgFeature = {
    def featurePrefix = "feature/"
    def branch = gitBranch();
    if (branch == null) {
        return null;
    }
    if (branch?.startsWith(featurePrefix)) {
        def feature = branch.substring(featurePrefix.length()).replaceAll(' ', '_');
        return feature;
    }
    return null;
}