init

.gitignore

@@ -0,0 +1,3 @@
+/.gradle
+/.idea
+/build

build.gradle.kts

@@ -0,0 +1,44 @@
+plugins {
+    `kotlin-dsl`
+    `maven-publish`
+}
+
+group = "com.sirekanyan"
+version = "0.0.4"
+
+repositories {
+    google()
+    jcenter()
+}
+
+dependencies {
+    implementation("com.android.tools.build:gradle:4.0.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.2.1")
+    implementation("io.ktor:ktor-client-cio:1.3.2")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.11.3")
+    implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.11.3")
+}
+
+gradlePlugin {
+    plugins {
+        create("Check dependency versions") {
+            id = "bump-plugin"
+            implementationClass = "com.sirekanyan.bump.BumpPlugin"
+        }
+    }
+}
+
+kotlinDslPluginOptions {
+    experimentalWarning.set(false)
+}
+
+publishing {
+    repositories {
+        mavenLocal()
+    }
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}

gradle.properties

@@ -0,0 +1 @@
+kotlin.code.style=official

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,183 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,103 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "bump"

src/main/kotlin/com/sirekanyan/bump/BumpExtension.kt

@@ -0,0 +1,23 @@
+package com.sirekanyan.bump
+
+import com.sirekanyan.bump.model.Version
+import com.sirekanyan.bump.model.toVersion
+import org.gradle.api.artifacts.Dependency
+
+open class BumpExtension {
+
+    private val maxMap = mutableMapOf<String, Version>()
+
+    fun findMax(dependency: Dependency): Version? {
+        val group = dependency.group
+        val name = dependency.name
+        return maxMap["$group:$name"] ?: maxMap["$group"]
+    }
+
+    infix fun String.lessThan(version: String) {
+        maxMap[this] = checkNotNull(version.toVersion()) {
+            "Unsupported version format: $version"
+        }
+    }
+
+}

src/main/kotlin/com/sirekanyan/bump/BumpPlugin.kt

@@ -0,0 +1,60 @@
+package com.sirekanyan.bump
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.ConfigurationContainer
+import org.gradle.api.artifacts.Dependency
+import org.gradle.api.artifacts.dsl.RepositoryHandler
+import org.gradle.api.artifacts.repositories.MavenArtifactRepository
+import org.gradle.kotlin.dsl.create
+
+class BumpPlugin : Plugin<Project> {
+
+    private lateinit var extension: BumpExtension
+
+    override fun apply(project: Project) {
+        extension = project.extensions.create("bump")
+        project.task("bump") {
+            doLast {
+                bump(
+                    project.rootProject.buildscript.repositories,
+                    project.rootProject.buildscript.configurations,
+                    "classpath"
+                )
+                project.allprojects.forEach { p ->
+                    bump(
+                        p.repositories,
+                        p.configurations,
+                        "implementation"
+                    )
+                }
+            }
+        }
+    }
+
+    private fun bump(
+        repositoryHandler: RepositoryHandler,
+        configurationContainer: ConfigurationContainer,
+        configurationName: String
+    ) {
+        val repositories = repositoryHandler.getMavenRepositories()
+        val dependencies = configurationContainer.getDependencies(configurationName)
+        val checker = VersionChecker(extension, repositories, dependencies)
+        checker.fetchMetadata()
+        dependencies.forEach { dependency ->
+            val current = dependency.version
+            val max = checker.getMaxVersion(dependency).toString()
+            if (current != max) {
+                val gav = dependency.run { "$group:$name:$version" }
+                println("$gav => $max")
+            }
+        }
+    }
+
+    private fun RepositoryHandler.getMavenRepositories(): List<MavenArtifactRepository> =
+        map { (it as MavenArtifactRepository) }
+
+    private fun ConfigurationContainer.getDependencies(name: String): List<Dependency> =
+        getByName(name).allDependencies.toList()
+
+}

src/main/kotlin/com/sirekanyan/bump/VersionChecker.kt

@@ -0,0 +1,86 @@
+@file:Suppress("DefaultLocale")
+
+package com.sirekanyan.bump
+
+import com.fasterxml.jackson.dataformat.xml.XmlMapper
+import com.fasterxml.jackson.module.kotlin.registerKotlinModule
+import com.sirekanyan.bump.model.ArtifactKey
+import com.sirekanyan.bump.model.Metadata
+import com.sirekanyan.bump.model.Version
+import com.sirekanyan.bump.model.createArtifactKey
+import io.ktor.client.*
+import io.ktor.client.features.*
+import io.ktor.client.request.*
+import io.ktor.http.*
+import kotlinx.coroutines.*
+import org.gradle.api.artifacts.Dependency
+import org.gradle.api.artifacts.repositories.MavenArtifactRepository
+import java.io.File
+
+class VersionChecker(
+    private val extension: BumpExtension,
+    private val repositories: List<MavenArtifactRepository>,
+    dependencies: List<Dependency>
+) {
+
+    private val httpClient = HttpClient()
+    private val xmlMapper = XmlMapper().registerKotlinModule()
+    private val artifactKeys: Set<ArtifactKey>
+    private lateinit var metadataCache: Map<ArtifactKey, String?>
+
+    init {
+        artifactKeys = mutableSetOf()
+        repositories.forEach { repository ->
+            dependencies.forEach { dependency ->
+                artifactKeys.add(createArtifactKey(repository, dependency))
+            }
+        }
+    }
+
+    fun fetchMetadata() {
+        runBlocking {
+            metadataCache = artifactKeys.associateWith { downloadMetadataAsync(it) }
+                .mapValues { it.value.await() }
+        }
+    }
+
+    private fun CoroutineScope.downloadMetadataAsync(key: ArtifactKey): Deferred<String?> =
+        async(Dispatchers.IO) {
+            try {
+                val url = Url(key.url)
+                if (url.protocol.name == "file") {
+                    val file = File(url.fullPath)
+                    if (file.exists()) {
+                        file.readText()
+                    } else {
+                        null
+                    }
+                } else {
+                    httpClient.get<String>(url)
+                }
+            } catch (exception: ClientRequestException) {
+                if (exception.response.status.value == 404) {
+                    null
+                } else {
+                    throw exception
+                }
+            }
+        }
+
+    fun getMaxVersion(dependency: Dependency): Version =
+        repositories.flatMap { getVersions(it, dependency) }.max() ?: Version.ZERO
+
+    private fun getVersions(
+        repository: MavenArtifactRepository,
+        dependency: Dependency
+    ): List<Version> {
+        val response = metadataCache.getValue(createArtifactKey(repository, dependency)) ?: return listOf()
+        val metadata = xmlMapper.readValue(response, Metadata::class.java)
+        return metadata.getAvailableVersions()
+            .filter { version ->
+                val max = extension.findMax(dependency)
+                max == null || version < max
+            }
+    }
+
+}

src/main/kotlin/com/sirekanyan/bump/model/ArtifactKey.kt

@@ -0,0 +1,14 @@
+package com.sirekanyan.bump.model
+
+import org.gradle.api.artifacts.Dependency
+import org.gradle.api.artifacts.repositories.MavenArtifactRepository
+
+fun createArtifactKey(repository: MavenArtifactRepository, dependency: Dependency): ArtifactKey {
+    val repositoryUrl = repository.url.toASCIIString().removeSuffix("/")
+    val groupPath = checkNotNull(dependency.group).replace('.', '/')
+    val namePath = dependency.name.replace('.', '/')
+    val url = "$repositoryUrl/$groupPath/$namePath/maven-metadata.xml"
+    return ArtifactKey(url)
+}
+
+data class ArtifactKey(val url: String)

src/main/kotlin/com/sirekanyan/bump/model/Metadata.kt

@@ -0,0 +1,24 @@
+package com.sirekanyan.bump.model
+
+data class Metadata(
+    val groupId: String,
+    val artifactId: String,
+    val version: String?,
+    val versioning: Versioning
+) {
+
+    fun getAvailableVersions(): List<Version> =
+        versioning.versions
+            .plus(version)
+            .plus(versioning.latest)
+            .plus(versioning.release)
+            .mapNotNull { it?.toVersion() }
+
+    data class Versioning(
+        val latest: String,
+        val release: String?,
+        val versions: List<String>,
+        val lastUpdated: String
+    )
+
+}

src/main/kotlin/com/sirekanyan/bump/model/Version.kt

@@ -0,0 +1,49 @@
+package com.sirekanyan.bump.model
+
+fun String.toVersion(): Version? {
+    fun Regex.groupValues() = matchEntire(this@toVersion)?.groupValues
+    fun List<String>.getInt(index: Int) = this[index].toInt()
+    Regex("^(\\d+)$").groupValues()?.run {
+        return Version(getInt(1))
+    }
+    Regex("^(\\d+)\\.(\\d+)$").groupValues()?.run {
+        return Version(getInt(1), getInt(2))
+    }
+    Regex("^(\\d+)\\.(\\d+)\\.(\\d+)$").groupValues()?.run {
+        return Version(getInt(1), getInt(2), getInt(3))
+    }
+    Regex("^(\\d+)\\.(\\d+)\\.(\\d+)-(\\d+)$").groupValues()?.run {
+        return Version(getInt(1), getInt(2), getInt(3), getInt(4))
+    }
+    return null
+}
+
+data class Version(
+    val major: Int,
+    val minor: Int? = null,
+    val patch: Int? = null,
+    val fix: Int? = null
+) : Comparable<Version> {
+
+    private val comparator: Comparator<Version> =
+        compareBy<Version> { it.major }
+            .thenBy { it.minor ?: 0 }
+            .thenBy { it.patch ?: 0 }
+            .thenBy { it.fix ?: 0 }
+
+    override fun compareTo(other: Version): Int =
+        comparator.compare(this, other)
+
+    override fun toString(): String =
+        when {
+            fix == null && patch == null && minor == null -> "$major"
+            fix == null && patch == null -> "$major.$minor"
+            fix == null -> "$major.$minor.$patch"
+            else -> "$major.$minor.$patch-$fix"
+        }
+
+    companion object {
+        val ZERO = Version(0)
+    }
+
+}