jkschneider

How many places does my birthday exist in our source code?

Let's get a bit more specific. How many places does the year of my birthdate exist in a literal somewhere in the codebase. Comments don't count. Variable names don't count.

Can you imagine doing something like this with a regular expression?

// 12-05-1983
class Hey {
  void itsYourBirthday() {

jkschneider

⚠️
✅
📈

jkschneider

///usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS com.konghq:unirest-java:3.14.2

import kong.unirest.HttpResponse;
import kong.unirest.Unirest;
import kong.unirest.UnirestException;

import java.io.*;
import java.nio.file.Files;
import java.nio.file.Path;

jkschneider

import java.io.*;
import java.util.concurrent.*;
import java.util.function.Consumer;

ExecutorService executorService = Executors.newSingleThreadExecutor();

System.out.println("Executing command: " + args[0]);
try {
    Process proc = Runtime.getRuntime().exec(new String[]{"/bin/sh", "-c", args[0]});
    StringBuilder sb = new StringBuilder();

jkschneider

Result "org.openrewrite.benchmarks.java.StarImportBenchmark.noStarImport":
  N = 238
  mean =    333.142 ±(99.9%) 10.826 ms/op

  Histogram, ms/op:
    [200.000, 225.000) = 0 
    [225.000, 250.000) = 0 
    [250.000, 275.000) = 19 
    [275.000, 300.000) = 59 
    [300.000, 325.000) = 56 

jkschneider

package io.moderne.common.monitoring;

import io.micrometer.core.instrument.Gauge;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.binder.MeterBinder;
import org.openrewrite.internal.lang.NonNull;
import oshi.SystemInfo;
import oshi.hardware.GlobalMemory;

jkschneider

class DataBuffersInputStream extends InputStream {
    volatile DataBuffer currentBuf;
    volatile boolean complete;

    BaseSubscriber<DataBuffer> subscriber = new BaseSubscriber<>() {
        @Override
        protected void hookOnNext(DataBuffer buf) {
            releaseCurrentBuf();
            currentBuf = buf;
            ((NettyDataBuffer) buf).retain();

jkschneider

package org.openrewrite.gradle;

import org.openrewrite.Option;
import org.openrewrite.Recipe;
import org.openrewrite.internal.lang.Nullable;
import org.openrewrite.semver.DependencyMatcher;

public class ChangeDependencyVersionFromEnv extends Recipe {
    @Option(displayName = "Dependency pattern",
            description = "A dependency pattern specifying which dependencies should have their groupId updated. " +

jkschneider

package org.openrewrite.java.spring;

import org.openrewrite.ExecutionContext;
import org.openrewrite.Recipe;
import org.openrewrite.TreeVisitor;
import org.openrewrite.java.*;
import org.openrewrite.java.search.UsesMethod;
import org.openrewrite.java.tree.J;

public class WebClientMaxConnections extends Recipe {

jkschneider

package org.openrewrite.java.dataflow;

import org.openrewrite.java.JavaIsoVisitor;
import org.openrewrite.java.MethodMatcher;
import org.openrewrite.java.tree.Expression;
import org.openrewrite.java.tree.J;

import java.util.function.Predicate;

import static org.apache.commons.lang.StringUtils.startsWith;