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Posted to commits@maven.apache.org by sj...@apache.org on 2022/07/24 14:00:31 UTC
[maven-wrapper] branch master updated: [MWRAPPER-61] Try to skip maven-wrapper.jar, call mvn directly from mvnw.
This is an automated email from the ASF dual-hosted git repository.
sjaranowski pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/maven-wrapper.git
The following commit(s) were added to refs/heads/master by this push:
new 5234fcc [MWRAPPER-61] Try to skip maven-wrapper.jar, call mvn directly from mvnw.
5234fcc is described below
commit 5234fcc20eaf552cec637bc709b797ea2597c769
Author: James Z.M. Gao <ga...@360.cn>
AuthorDate: Thu Mar 17 00:54:29 2022 +0800
[MWRAPPER-61] Try to skip maven-wrapper.jar, call mvn directly from mvnw.
The most behavior of new implementation is the same as original. A new
type of `only-script` is added for keep both old and new
implementations.
For Posix shell `mvnw`:
* dists path pattern is shorten to ~/.m2/wrapper/dists/apache-maven-<version>/<java-string-hash>
* follow posix shell, test on macos, centos 6/7/8, alpine with bash 3/4/5, zsh, dash
* fix all shellcheck.net warnings
* inline java source of the fallback way for downloading dist zip fille
* improve password security, avoid leaking to command line or trace log
* support busybox wget to download maven dist
* dependency:
- a posix shell at /bin/sh
- posix built-in commands such a [, echo and printf
- directory operation commands: mktemp, mkdir, mv, rm
- cygpath if Cygwin or MinGW
- one of three: wget, curl or jdk 1.7+
- one of two: unzip or tar + gzip
For windows cmd batch `mvnw.cmd`:
* dists path pattern is shorten to ~/.m2/wrapper/dists/apache-maven-<version>/<md5-hash>
* the main functions of start, download and install parts are implemented via powershell,
which is preinstalled since Win7 SP1
* fix warnings given by powershell PSScriptAnalyzer
* dependency:
- cmd
- powershell 5.1+
---
maven-wrapper-distribution/pom.xml | 1 +
.../src/assembly/only-script.xml | 63 +++++++
maven-wrapper-distribution/src/resources/only-mvnw | 186 +++++++++++++++++++++
.../src/resources/only-mvnw.cmd | 116 +++++++++++++
.../src/resources/only-mvnwDebug | 24 +++
.../src/resources/only-mvnwDebug.cmd | 27 +++
.../src/site/apt/index.apt.vm | 2 +
.../src/it/projects/type_only-script/pom.xml | 68 ++++++++
.../it/projects/type_only-script/test.properties | 18 ++
.../src/it/projects/type_only-script/verify.groovy | 33 ++++
10 files changed, 538 insertions(+)
diff --git a/maven-wrapper-distribution/pom.xml b/maven-wrapper-distribution/pom.xml
index e916b8d..d5afb11 100644
--- a/maven-wrapper-distribution/pom.xml
+++ b/maven-wrapper-distribution/pom.xml
@@ -57,6 +57,7 @@ under the License.
</executions>
<configuration>
<descriptors>
+ <descriptor>src/assembly/only-script.xml</descriptor>
<descriptor>src/assembly/script.xml</descriptor>
<descriptor>src/assembly/source.xml</descriptor>
<descriptor>src/assembly/bin.xml</descriptor>
diff --git a/maven-wrapper-distribution/src/assembly/only-script.xml b/maven-wrapper-distribution/src/assembly/only-script.xml
new file mode 100644
index 0000000..85de1af
--- /dev/null
+++ b/maven-wrapper-distribution/src/assembly/only-script.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you 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
+
+ http://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.
+-->
+
+<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.1.0 http://maven.apache.org/xsd/assembly-2.1.0.xsd">
+ <id>only-script</id>
+ <formats>
+ <format>zip</format>
+ </formats>
+ <includeBaseDirectory>false</includeBaseDirectory>
+ <files>
+ <file>
+ <source>src/resources/only-mvnw.cmd</source>
+ <destName>mvnw.cmd</destName>
+ <outputDirectory>.</outputDirectory>
+ <lineEnding>dos</lineEnding>
+ <fileMode>0644</fileMode>
+ <filtered>true</filtered>
+ </file>
+ <file>
+ <source>src/resources/only-mvnwDebug.cmd</source>
+ <destName>mvnwDebug.cmd</destName>
+ <outputDirectory>.</outputDirectory>
+ <lineEnding>dos</lineEnding>
+ <fileMode>0644</fileMode>
+ <filtered>true</filtered>
+ </file>
+ <file>
+ <source>src/resources/only-mvnw</source>
+ <destName>mvnw</destName>
+ <outputDirectory>.</outputDirectory>
+ <lineEnding>unix</lineEnding>
+ <fileMode>0755</fileMode>
+ <filtered>true</filtered>
+ </file>
+ <file>
+ <source>src/resources/only-mvnwDebug</source>
+ <destName>mvnwDebug</destName>
+ <outputDirectory>.</outputDirectory>
+ <lineEnding>unix</lineEnding>
+ <fileMode>0755</fileMode>
+ <filtered>true</filtered>
+ </file>
+ </files>
+</assembly>
diff --git a/maven-wrapper-distribution/src/resources/only-mvnw b/maven-wrapper-distribution/src/resources/only-mvnw
new file mode 100755
index 0000000..73a017f
--- /dev/null
+++ b/maven-wrapper-distribution/src/resources/only-mvnw
@@ -0,0 +1,186 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you 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
+#
+# http://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.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version @@project.version@@
+#
+# Optional ENV vars
+# -----------------
+# JAVA_HOME - location of a JDK home dir, required when download maven via java source
+# MVNW_REPOURL - repo url base for downloading maven distribution
+# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+(CYGWIN*|MINGW*) [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+ native_path() { cygpath --path --windows "$1"; } ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+ # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+ if [ -n "${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"
+ JAVACCMD="$JAVA_HOME/jre/sh/javac"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ JAVACCMD="$JAVA_HOME/bin/javac"
+
+ if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ] ; then
+ echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+ echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+ return 1
+ fi
+ fi
+ else
+ JAVACMD="$('set' +e; 'unset' -f command 2>/dev/null; 'command' -v java)" || :
+ JAVACCMD="$('set' +e; 'unset' -f command 2>/dev/null; 'command' -v javac)" || :
+
+ if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ] ; then
+ echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+ return 1
+ fi
+ fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+ str="${1:-}" h=0
+ while [ -n "$str" ]; do
+ h=$(( ( h * 31 + $(LC_CTYPE=C printf %d "'$str") ) % 4294967296 ))
+ str="${str#?}"
+ done
+ printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+ printf %s\\n "$1" >&2
+ exit 1
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+ case "$key" in (distributionUrl) distributionUrl="${value:-$distributionUrl}"; break ;; esac
+done < "${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL/org/apache/maven/${distributionUrl#*/org/apache/maven/}"
+
+# calculate MAVEN_HOME, pattern ~/.m2/wrapper/dists/apache-maven-<version>/<hash>
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%-bin.*}"
+MAVEN_HOME="$HOME/.m2/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+MVN_CMD="mvn${0##*/mvnw}"
+
+if [ -d "$MAVEN_HOME" ]; then
+ verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL
+ exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "MAVEN_HOME is not valid: cannot exec $MAVEN_HOME/bin/mvn"
+fi
+
+case "${distributionUrl-}" in
+(*?-bin.zip) ;;
+(*) die "distributionUrl is not valid, must end with *-bin.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+ clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+ trap clean HUP INT TERM EXIT
+else
+ die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+ distributionUrl="${distributionUrl%.zip}.tar.gz"
+ distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget > /dev/null; then
+ verbose "Found wget ... using wget"
+ wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl > /dev/null; then
+ verbose "Found curl ... using curl"
+ curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl"
+elif set_java_home; then
+ verbose "Falling back to use Java to download"
+ javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+ targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+ cat > "$javaSource" <<-END
+ public class Downloader extends java.net.Authenticator
+ {
+ protected java.net.PasswordAuthentication getPasswordAuthentication()
+ {
+ return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+ }
+ public static void main( String[] args ) throws Exception
+ {
+ setDefault( new Downloader() );
+ java.nio.file.Files.copy( new java.net.URL( args[0] ).openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+ }
+ }
+ END
+ # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+ verbose " - Compiling Downloader.java ..."
+ "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")"
+ verbose " - Running Downloader.java ..."
+ "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# unzip and move
+if command -v unzip > /dev/null; then
+ unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR"
+else
+ tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR"
+fi
+printf %s\\n "$distributionUrl" > "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+exec "$MAVEN_HOME/bin/$MVN_CMD" "$@"
diff --git a/maven-wrapper-distribution/src/resources/only-mvnw.cmd b/maven-wrapper-distribution/src/resources/only-mvnw.cmd
new file mode 100644
index 0000000..2fd3fc2
--- /dev/null
+++ b/maven-wrapper-distribution/src/resources/only-mvnw.cmd
@@ -0,0 +1,116 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements. See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership. The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License. You may obtain a copy of the License at
+@REM
+@REM http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied. See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version @@project.version@@
+@REM
+@REM Optional ENV vars
+@REM MVNW_REPOURL - repo url base for downloading maven distribution
+@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+ IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
+@echo Cannot start maven from wrapper >&2 && cmd /c exit /b 2
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+ $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+ Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+if ($env:MVNW_REPOURL) {
+ $distributionUrl = "$env:MVNW_REPOURL/org/apache/maven/$($distributionUrl -replace '^.*/org/apache/maven/','')"
+}
+
+# calculate MAVEN_HOME, pattern ~/.m2/wrapper/dists/apache-maven-<version>/<hash>
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '-bin\.zip$',''
+$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+$MVN_CMD = $script -replace '^mvnw','mvn'
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+ Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+ exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+ Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+ if ($TMP_DOWNLOAD_DIR.Exists) {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+ }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+ $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+ Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+ if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+ Write-Error "fail to move MAVEN_HOME"
+ }
+} finally {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
diff --git a/maven-wrapper-distribution/src/resources/only-mvnwDebug b/maven-wrapper-distribution/src/resources/only-mvnwDebug
new file mode 100644
index 0000000..8e6da18
--- /dev/null
+++ b/maven-wrapper-distribution/src/resources/only-mvnwDebug
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# -----------------------------------------------------------------------------
+# Apache Maven Wrapper debug script, version @@project.version@@
+# -----------------------------------------------------------------------------
+
+. "${0%/*}"/mvnw
diff --git a/maven-wrapper-distribution/src/resources/only-mvnwDebug.cmd b/maven-wrapper-distribution/src/resources/only-mvnwDebug.cmd
new file mode 100644
index 0000000..8636da9
--- /dev/null
+++ b/maven-wrapper-distribution/src/resources/only-mvnwDebug.cmd
@@ -0,0 +1,27 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements. See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership. The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License. You may obtain a copy of the License at
+@REM
+@REM http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied. See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper debug script, version @@project.version@@
+@REM ----------------------------------------------------------------------------
+
+@SET __MVNW_ARG0_NAME__=%~nx0
+@%~dp0mvnw.cmd %*
+@echo "Cannot find %~dp0mvnw.cmd" >&2
+@cmd /c exit /b 2
diff --git a/maven-wrapper-distribution/src/site/apt/index.apt.vm b/maven-wrapper-distribution/src/site/apt/index.apt.vm
index f4e4fb0..b9d6237 100644
--- a/maven-wrapper-distribution/src/site/apt/index.apt.vm
+++ b/maven-wrapper-distribution/src/site/apt/index.apt.vm
@@ -36,6 +36,8 @@ mvnw.cmd
----
but every distribution has specific content to manage different strategies to get {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}}:
+
+ - <<<only-script>>>: the new lite implementation of <<<mvnw>>>/<<<mvnw.cmd>>> scripts will download the maven directly with <<<wget>>> or <<<curl>>> on *nix, or PowerShell on Windows, then exec/call the original <<<mvn>>>/<<<mvn.cmd>>> scripts of the downloaded maven distribution.
- <<<script>>>: <<<mvnw>>>/<<<mvnw.cmd>>> scripts will download {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}} with <<<wget>>> or <<<curl>>> on *nix, or PowerShell on Windows
diff --git a/maven-wrapper-plugin/src/it/projects/type_only-script/pom.xml b/maven-wrapper-plugin/src/it/projects/type_only-script/pom.xml
new file mode 100644
index 0000000..9cbffc7
--- /dev/null
+++ b/maven-wrapper-plugin/src/it/projects/type_only-script/pom.xml
@@ -0,0 +1,68 @@
+<?xml version='1.0' encoding='UTF-8'?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you 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
+
+ http://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.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>org.apache.maven.plugins.it.wrapper</groupId>
+ <artifactId>extension</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ <packaging>pom</packaging>
+
+ <properties>
+ <cmd></cmd>
+ </properties>
+
+ <build>
+ <pluginManagement>
+ <plugins>
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>exec-maven-plugin</artifactId>
+ <version>3.0.0</version>
+ <configuration>
+ <executable>mvnw${cmd}</executable>
+ <arguments>
+ <argument>-v</argument>
+ </arguments>
+ <environmentVariables>
+ <MVNW_VERBOSE>true</MVNW_VERBOSE>
+ <HOME>${project.build.directory}</HOME>
+ <USERPROFILE>${project.build.directory}</USERPROFILE>
+ </environmentVariables>
+ </configuration>
+ </plugin>
+ </plugins>
+ </pluginManagement>
+ </build>
+
+ <profiles>
+ <profile>
+ <id>windows</id>
+ <activation>
+ <os><family>windows</family></os>
+ </activation>
+ <properties>
+ <cmd>.cmd</cmd>
+ </properties>
+ </profile>
+ </profiles>
+</project>
diff --git a/maven-wrapper-plugin/src/it/projects/type_only-script/test.properties b/maven-wrapper-plugin/src/it/projects/type_only-script/test.properties
new file mode 100644
index 0000000..f9a1960
--- /dev/null
+++ b/maven-wrapper-plugin/src/it/projects/type_only-script/test.properties
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you 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
+#
+# http://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.
+
+type=only-script
diff --git a/maven-wrapper-plugin/src/it/projects/type_only-script/verify.groovy b/maven-wrapper-plugin/src/it/projects/type_only-script/verify.groovy
new file mode 100644
index 0000000..5625fae
--- /dev/null
+++ b/maven-wrapper-plugin/src/it/projects/type_only-script/verify.groovy
@@ -0,0 +1,33 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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
+ *
+ * http://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.
+ */
+
+assert new File(basedir,'mvnw').exists()
+assert new File(basedir,'mvnw.cmd').exists()
+assert !(new File(basedir,'mvnwDebug').exists())
+assert !(new File(basedir,'mvnwDebug.cmd').exists())
+assert new File(basedir,'.mvn/wrapper/maven-wrapper.properties').exists()
+
+log = new File(basedir, 'build.log').text
+// check "mvn wrapper:wrapper" output
+assert log.contains('[INFO] Unpacked only-script type wrapper distribution org.apache.maven.wrapper:maven-wrapper-distribution:zip:only-script:')
+
+// check "mvnw -v" output
+assert log.contains("Couldn't find ")
+assert log.contains(", downloading and installing it ...")