static boolean hasBadOutputTimestamp()

in src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java [181:227]
40 lines of code
13 McCabe index (conditional complexity)

    static boolean hasBadOutputTimestamp(
            String outputTimestamp, Log log, MavenProject project, MavenSession session, boolean diagnose) {
        Instant timestamp =
                MavenArchiver.parseBuildOutputTimestamp(outputTimestamp).orElse(null);
        String effective = ((timestamp == null) ? "disabled" : DateTimeFormatter.ISO_INSTANT.format(timestamp));

        if (diagnose) {
            diagnose(outputTimestamp, log, project, session, effective);
        }

        if (timestamp == null) {
            log.error("Reproducible Build not activated by project.build.outputTimestamp property: "
                    + "see https://maven.apache.org/guides/mini/guide-reproducible-builds.html");

            String projectProperty = project.getProperties().getProperty("project.build.outputTimestamp");
            if (projectProperty != null && projectProperty.startsWith("${git.")) {
                log.error("project.build.outputTimestamp = \"" + projectProperty + "\": isn't Git value set?");
                log.error("Did validate phase run and Git plugin set the value?");
                if (project.getPackaging().equals("pom")) {
                    log.error("if using git-commit-id-plugin, <skipPoms>false</skipPoms> may solve the issue.");
                }
            }
            return true;
        }

        if (log.isDebugEnabled()) {
            log.debug("project.build.outputTimestamp = \"" + outputTimestamp + "\" => "
                    + (effective.equals(outputTimestamp) ? "" : (" => " + effective)));
        }

        // check if timestamp defined in a project from reactor: info if it is not the case
        boolean parentInReactor = false;
        MavenProject reactorParent = project;
        while (session.getProjects().contains(reactorParent.getParent())) {
            parentInReactor = true;
            reactorParent = reactorParent.getParent();
        }
        String prop = reactorParent.getOriginalModel().getProperties().getProperty("project.build.outputTimestamp");
        if (prop == null) {
            log.info("<project.build.outputTimestamp> property (= " + outputTimestamp + ") is inherited"
                    + (parentInReactor ? " from outside the reactor" : "") + ", you can override in "
                    + (parentInReactor ? "parent POM from reactor " + reactorParent.getFile() : "pom.xml"));
            return false;
        }

        return false;
    }