def collectBuildModes()

in vars/gerritPipeline.groovy [131:162]

• 31 lines of code
• 13 McCabe index (conditional complexity)

def collectBuildModes() {
    Builds.modes = []
    if (env.GERRIT_BRANCH == "master" || env.GERRIT_BRANCH ==~ /stable-3.[4-5]/) {
        Builds.modes = ["notedb", "rbe"]
    } else if (env.GERRIT_BRANCH == "stable-3.3") {
        Builds.modes = ["notedb"]
    } else {
        throw new Exception("Unsupported branch ${env.GERRIT_BRANCH}")
    }

    def changedFiles = queryChangedFiles(Globals.gerritUrl)
    def isMerge = changedFiles.contains("/MERGE_LIST")
    def polygerritFiles = changedFiles.findAll { it.startsWith("polygerrit-ui") ||
        it.startsWith("lib/js") }
    def bazelFiles = changedFiles.findAll { it == "WORKSPACE" || it.endsWith("BUILD") ||
        it.endsWith(".bzl") || it == ".bazelversion" }
    if(isMerge) {
        println "Merge commit detected, adding 'polygerrit' validation..."
        Builds.modes += "polygerrit"
    } else if(polygerritFiles.size() > 0) {
        if(changedFiles.size() == polygerritFiles.size() && bazelFiles.isEmpty()) {
            println "Only PolyGerrit UI changes detected, skipping other test modes..."
            Builds.modes = ["polygerrit"]
        } else {
            println "PolyGerrit UI changes detected, adding 'polygerrit' validation..."
            Builds.modes += "polygerrit"
        }
    } else if(!bazelFiles.isEmpty()) {
        println "Bazel files changes detected, adding 'polygerrit' validation..."
        Builds.modes += "polygerrit"
    }
}