无法在 Jenkins 管道中的 "sh clause" 中使用变量，可能是什么原因？
Unable to use a variable within a "sh clause" in a Jenkins pipeline, what could be the reason?
我正在编写 Jenkins 管道。
我想用 current directory/.gradle 设置 GRADLE_USER_HOME 变量，所以我用 pwd() 函数填充 cwd 变量，该函数应该 return 当前工作目录。
stage 'Host preparation'
cwd = pwd()
withCredentials([ // Use Jenkins credentials ID of artifactory
[$class: 'UsernamePasswordMultiBinding', credentialsId: artifactory_creds, usernameVariable: 'A_USER', passwordVariable: 'A_PASS'],
]){
sh """
export NDK_VER="r12b"
export SDK_VER="r24.4.1"
export GRADLE_USER_HOME='${cwd}/.gradle'
echo "CWD OK"
export NDK_DIR='$GRADLE_USER_HOME/android-ndk-$NDK_VER'
export SDK_DIR='$GRADLE_USER_HOME/android-sdk-linux'
export PATH='$PATH:$GRADLE_USER_HOME:$GRADLE_USER_HOME/android-ndk-$NDK_VER:$GRADLE_USER_HOME/android-sdk-linux'
if [ ! -d $GRADLE_USER_HOME ]; then
mkdir $GRADLE_USER_HOME
fi
if [ ! -f "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" ]; then
curl -o "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" https://dl.google.com/android/android-sdk_$SDK_VER-linux.tgz
fi
if [ ! -f "$GRADLE_USER_HOME/android-ndk-${NDK_VER}-linux-x86_64.zip" ]; then # Checks if the sdk tarball exists on system
curl -o "$GRADLE_USER_HOME/android-ndk-${NDK_VER}-linux-x86_64.zip" https://dl.google.com/android/repository/android-ndk-$NDK_VER-linux-x86_64.zip
fi
if [ ! -d "$GRADLE_USER_HOME/android-ndk-$NDK_VER" ]; then
cd "$GRADLE_USER_HOME" && unzip -o "android-ndk-$NDK_VER-linux-x86_64.zip"
fi
if [ ! -d "$GRADLE_USER_HOME/android-sdk-linux" ]; then
tar -xzf "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" -C $GRADLE_USER_HOME
mkdir "$GRADLE_USER_HOME/android-sdk-linux/extras"
fi
echo "Installing updates"
export SDK_TOOLS="${GRADLE_USER_HOME}/android-sdk-linux/tools"
# Downloads the required SDK tools
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 2 # Android SDK Tools, revision 25.2.2 rc1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 3 # Android SDK Platform-tools, revision 24.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 4 # Android SDK Build-tools, revision 24.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 6 # Android SDK Build-tools, revision 24
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 7 # Android SDK Build-tools, revision 23.0.3
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 8 # Android SDK Build-tools, revision 23.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 10 # Android SDK Build-tools, revision 23 (Obsolete)
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 30 # SDK Platform Android 7.0, API 24, revision 2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 31 # SDK Platform Android 6.0, API 23, revision 3
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 53 # Android TV Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 54 # Android Wear ARM EABI v7a System Image, Android API 24, revision 1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 55 # Android Wear Intel x86 Atom System Image, Android API 24, revision 1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 57 # ARM EABI v7a System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 58 # Intel x86 Atom_64 System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 59 # Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 153 # Android Support Repository, revision 36
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 160 # Google Play services, revision 32
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 161 # Google Repository, revision 32
# Downloads the constraint-layouts files from Artifactory
wget --user=${A_USER} --password=${A_PASS} https://artifactory.company.net/android-tmp/m2repository.tar.gz -O -| tar zfxv - -C "${GRADLE_USER_HOME}/android-sdk-linux/extras/"
"""
但是当我 运行 构建时，出现以下错误：
Entering stage Host preparation
Proceeding
[Pipeline] pwd
[Pipeline] withCredentials
[Pipeline] {
[Pipeline] }
[Pipeline] // withCredentials
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
groovy.lang.MissingPropertyException: No such property: GRADLE_USER_HOME for class: groovy.lang.Binding
at groovy.lang.Binding.getVariable(Binding.java:63)
at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onGetProperty(SandboxInterceptor.java:224)
at org.kohsuke.groovy.sandbox.impl.Checker.call(Checker.java:241)
at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:238)
at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:221)
为了调试问题，我创建了另一个构建并写道：
node {
def cwd = pwd()
stage 'itai'
sh """
echo '${cwd}'
"""
}
然后它开始工作，cwd 变量被填充为当前工作目录。但是在我自己的构建中它没有...
我在管道的另一部分使用 pwd() 函数，它在那里工作，所以我不明白为什么它在这里不起作用，请你检查一下是否找到问题？
当您在脚本中放置 $something 或 ${something} 时，groovy 会将其扩展为一个变量...
因此，当您输入：$GRADLE_USER_HOME 时，groovy 试图从一个变量扩展它...但是您的 [=30] 中没有 GRADLE_USER_HOME 变量=] 脚本...
您要做的是将 $GRADLE_USER_HOME 输出到您的 shell 脚本中。
因此，只要 Groovy 无法处理，您就需要转义 $...
即：
export NDK_DIR='$GRADLE_USER_HOME/android-ndk-$NDK_VER'
以及您不希望 groovy 处理的所有其他地方 $
tim_yates是对的，这里要记住Groovy变量和shell变量都使用相同的“$”前缀，所以需要转义你的 shell 变量，这样它们就不会被解释为 Groovy 变量。
但是，在您的情况下，您有另一种解决方案：您也可以将您使用的 shell 变量定义为...作为 Groovy 变量并将它们用作 Groovy 变量，因此避免转义每个“$”符号。
示例：
stage 'Host preparation'
def cwd = pwd()
def ndkVer = "r12b"
def sdkVer = "r24.4.1"
def gradleUserHome = "${cwd}/.gradle"
def sdkTools="$gradleUserHome/android-sdk-linux/tools"
withCredentials([ // Use Jenkins credentials ID of artifactory
[$class: 'UsernamePasswordMultiBinding', credentialsId: artifactory_creds, usernameVariable: 'A_USER', passwordVariable: 'A_PASS'],
]){
sh """
export NDK_VER=$ndkVer
export SDK_VER=$sdkVer
export GRADLE_USER_HOME=$gradleUserHome
echo "CWD OK"
export NDK_DIR='$gradleUserHome/android-ndk-$ndkVer'
export SDK_DIR='$gradleUserHome/android-sdk-linux'
export PATH='$PATH:$gradleUserHome:$gradleUserHome/android-ndk-$ndkVer:$gradleUserHome/android-sdk-linux'
if [ ! -d $gradleUserHome ]; then
mkdir $gradleUserHome
fi
if [ ! -f "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" ]; then
curl -o "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" https://dl.google.com/android/android-sdk_$sdkVer-linux.tgz
fi
if [ ! -f "$gradleUserHome/android-ndk-$ndkVer-linux-x86_64.zip" ]; then # Checks if the sdk tarball exists on system
curl -o "$gradleUserHome/android-ndk-$ndkVer-linux-x86_64.zip" https://dl.google.com/android/repository/android-ndk-$ndkVer-linux-x86_64.zip
fi
if [ ! -d "$gradleUserHome/android-ndk-$ndkVer" ]; then
cd "$gradleUserHome" && unzip -o "android-ndk-$ndkVer-linux-x86_64.zip"
fi
if [ ! -d "$gradleUserHome/android-sdk-linux" ]; then
tar -xzf "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" -C $gradleUserHome
mkdir "$gradleUserHome/android-sdk-linux/extras"
fi
echo "Installing updates"
export SDK_TOOLS="${gradleUserHome}/android-sdk-linux/tools"
# Downloads the required SDK tools
# echo "y" | "$sdkTools/android" update sdk -u -a -t 2 # Android SDK Tools, revision 25.2.2 rc1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 3 # Android SDK Platform-tools, revision 24.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 4 # Android SDK Build-tools, revision 24.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 6 # Android SDK Build-tools, revision 24
# echo "y" | "$sdkTools/android" update sdk -u -a -t 7 # Android SDK Build-tools, revision 23.0.3
# echo "y" | "$sdkTools/android" update sdk -u -a -t 8 # Android SDK Build-tools, revision 23.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 10 # Android SDK Build-tools, revision 23 (Obsolete)
# echo "y" | "$sdkTools/android" update sdk -u -a -t 30 # SDK Platform Android 7.0, API 24, revision 2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 31 # SDK Platform Android 6.0, API 23, revision 3
# echo "y" | "$sdkTools/android" update sdk -u -a -t 53 # Android TV Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 54 # Android Wear ARM EABI v7a System Image, Android API 24, revision 1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 55 # Android Wear Intel x86 Atom System Image, Android API 24, revision 1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 57 # ARM EABI v7a System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 58 # Intel x86 Atom_64 System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 59 # Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 153 # Android Support Repository, revision 36
# echo "y" | "$sdkTools/android" update sdk -u -a -t 160 # Google Play services, revision 32
# echo "y" | "$sdkTools/android" update sdk -u -a -t 161 # Google Repository, revision 32
# Downloads the constraint-layouts files from Artifactory
wget --user=${A_USER} --password=${A_PASS} https://artifactory.company.net/android-tmp/m2repository.tar.gz -O -| tar zfxv - -C "$gradleUserHome/android-sdk-linux/extras/"
"""
请注意，我在这里使用驼峰式表示法来区分 Groovy 变量和 shell 变量，当然您也可以使用相同的大写表示法。此外，您会注意到 PATH='$PATH:$gradleUserHome...，其中 $PATH 被转义为 $PATH，因为这次我们使用的是 shell 变量...
我正在编写 Jenkins 管道。
我想用 current directory/.gradle 设置 GRADLE_USER_HOME 变量，所以我用 pwd() 函数填充 cwd 变量，该函数应该 return 当前工作目录。
stage 'Host preparation'
cwd = pwd()
withCredentials([ // Use Jenkins credentials ID of artifactory
[$class: 'UsernamePasswordMultiBinding', credentialsId: artifactory_creds, usernameVariable: 'A_USER', passwordVariable: 'A_PASS'],
]){
sh """
export NDK_VER="r12b"
export SDK_VER="r24.4.1"
export GRADLE_USER_HOME='${cwd}/.gradle'
echo "CWD OK"
export NDK_DIR='$GRADLE_USER_HOME/android-ndk-$NDK_VER'
export SDK_DIR='$GRADLE_USER_HOME/android-sdk-linux'
export PATH='$PATH:$GRADLE_USER_HOME:$GRADLE_USER_HOME/android-ndk-$NDK_VER:$GRADLE_USER_HOME/android-sdk-linux'
if [ ! -d $GRADLE_USER_HOME ]; then
mkdir $GRADLE_USER_HOME
fi
if [ ! -f "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" ]; then
curl -o "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" https://dl.google.com/android/android-sdk_$SDK_VER-linux.tgz
fi
if [ ! -f "$GRADLE_USER_HOME/android-ndk-${NDK_VER}-linux-x86_64.zip" ]; then # Checks if the sdk tarball exists on system
curl -o "$GRADLE_USER_HOME/android-ndk-${NDK_VER}-linux-x86_64.zip" https://dl.google.com/android/repository/android-ndk-$NDK_VER-linux-x86_64.zip
fi
if [ ! -d "$GRADLE_USER_HOME/android-ndk-$NDK_VER" ]; then
cd "$GRADLE_USER_HOME" && unzip -o "android-ndk-$NDK_VER-linux-x86_64.zip"
fi
if [ ! -d "$GRADLE_USER_HOME/android-sdk-linux" ]; then
tar -xzf "$GRADLE_USER_HOME/android-sdk-${SDK_VER}-linux.tgz" -C $GRADLE_USER_HOME
mkdir "$GRADLE_USER_HOME/android-sdk-linux/extras"
fi
echo "Installing updates"
export SDK_TOOLS="${GRADLE_USER_HOME}/android-sdk-linux/tools"
# Downloads the required SDK tools
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 2 # Android SDK Tools, revision 25.2.2 rc1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 3 # Android SDK Platform-tools, revision 24.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 4 # Android SDK Build-tools, revision 24.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 6 # Android SDK Build-tools, revision 24
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 7 # Android SDK Build-tools, revision 23.0.3
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 8 # Android SDK Build-tools, revision 23.0.2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 10 # Android SDK Build-tools, revision 23 (Obsolete)
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 30 # SDK Platform Android 7.0, API 24, revision 2
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 31 # SDK Platform Android 6.0, API 23, revision 3
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 53 # Android TV Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 54 # Android Wear ARM EABI v7a System Image, Android API 24, revision 1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 55 # Android Wear Intel x86 Atom System Image, Android API 24, revision 1
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 57 # ARM EABI v7a System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 58 # Intel x86 Atom_64 System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 59 # Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 153 # Android Support Repository, revision 36
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 160 # Google Play services, revision 32
# echo "y" | "${SDK_TOOLS}/android" update sdk -u -a -t 161 # Google Repository, revision 32
# Downloads the constraint-layouts files from Artifactory
wget --user=${A_USER} --password=${A_PASS} https://artifactory.company.net/android-tmp/m2repository.tar.gz -O -| tar zfxv - -C "${GRADLE_USER_HOME}/android-sdk-linux/extras/"
"""
但是当我 运行 构建时，出现以下错误：
Entering stage Host preparation
Proceeding
[Pipeline] pwd
[Pipeline] withCredentials
[Pipeline] {
[Pipeline] }
[Pipeline] // withCredentials
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
groovy.lang.MissingPropertyException: No such property: GRADLE_USER_HOME for class: groovy.lang.Binding
at groovy.lang.Binding.getVariable(Binding.java:63)
at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onGetProperty(SandboxInterceptor.java:224)
at org.kohsuke.groovy.sandbox.impl.Checker.call(Checker.java:241)
at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:238)
at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:221)
为了调试问题，我创建了另一个构建并写道：
node {
def cwd = pwd()
stage 'itai'
sh """
echo '${cwd}'
"""
}
然后它开始工作，cwd 变量被填充为当前工作目录。但是在我自己的构建中它没有...
我在管道的另一部分使用 pwd() 函数，它在那里工作，所以我不明白为什么它在这里不起作用，请你检查一下是否找到问题？
当您在脚本中放置 $something 或 ${something} 时，groovy 会将其扩展为一个变量...
因此，当您输入：$GRADLE_USER_HOME 时，groovy 试图从一个变量扩展它...但是您的 [=30] 中没有 GRADLE_USER_HOME 变量=] 脚本...
您要做的是将 $GRADLE_USER_HOME 输出到您的 shell 脚本中。
因此，只要 Groovy 无法处理，您就需要转义 $...
即：
export NDK_DIR='$GRADLE_USER_HOME/android-ndk-$NDK_VER'
以及您不希望 groovy 处理的所有其他地方 $
tim_yates是对的，这里要记住Groovy变量和shell变量都使用相同的“$”前缀，所以需要转义你的 shell 变量，这样它们就不会被解释为 Groovy 变量。
但是，在您的情况下，您有另一种解决方案：您也可以将您使用的 shell 变量定义为...作为 Groovy 变量并将它们用作 Groovy 变量，因此避免转义每个“$”符号。
示例：
stage 'Host preparation'
def cwd = pwd()
def ndkVer = "r12b"
def sdkVer = "r24.4.1"
def gradleUserHome = "${cwd}/.gradle"
def sdkTools="$gradleUserHome/android-sdk-linux/tools"
withCredentials([ // Use Jenkins credentials ID of artifactory
[$class: 'UsernamePasswordMultiBinding', credentialsId: artifactory_creds, usernameVariable: 'A_USER', passwordVariable: 'A_PASS'],
]){
sh """
export NDK_VER=$ndkVer
export SDK_VER=$sdkVer
export GRADLE_USER_HOME=$gradleUserHome
echo "CWD OK"
export NDK_DIR='$gradleUserHome/android-ndk-$ndkVer'
export SDK_DIR='$gradleUserHome/android-sdk-linux'
export PATH='$PATH:$gradleUserHome:$gradleUserHome/android-ndk-$ndkVer:$gradleUserHome/android-sdk-linux'
if [ ! -d $gradleUserHome ]; then
mkdir $gradleUserHome
fi
if [ ! -f "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" ]; then
curl -o "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" https://dl.google.com/android/android-sdk_$sdkVer-linux.tgz
fi
if [ ! -f "$gradleUserHome/android-ndk-$ndkVer-linux-x86_64.zip" ]; then # Checks if the sdk tarball exists on system
curl -o "$gradleUserHome/android-ndk-$ndkVer-linux-x86_64.zip" https://dl.google.com/android/repository/android-ndk-$ndkVer-linux-x86_64.zip
fi
if [ ! -d "$gradleUserHome/android-ndk-$ndkVer" ]; then
cd "$gradleUserHome" && unzip -o "android-ndk-$ndkVer-linux-x86_64.zip"
fi
if [ ! -d "$gradleUserHome/android-sdk-linux" ]; then
tar -xzf "$gradleUserHome/android-sdk-$sdkVer-linux.tgz" -C $gradleUserHome
mkdir "$gradleUserHome/android-sdk-linux/extras"
fi
echo "Installing updates"
export SDK_TOOLS="${gradleUserHome}/android-sdk-linux/tools"
# Downloads the required SDK tools
# echo "y" | "$sdkTools/android" update sdk -u -a -t 2 # Android SDK Tools, revision 25.2.2 rc1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 3 # Android SDK Platform-tools, revision 24.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 4 # Android SDK Build-tools, revision 24.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 6 # Android SDK Build-tools, revision 24
# echo "y" | "$sdkTools/android" update sdk -u -a -t 7 # Android SDK Build-tools, revision 23.0.3
# echo "y" | "$sdkTools/android" update sdk -u -a -t 8 # Android SDK Build-tools, revision 23.0.2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 10 # Android SDK Build-tools, revision 23 (Obsolete)
# echo "y" | "$sdkTools/android" update sdk -u -a -t 30 # SDK Platform Android 7.0, API 24, revision 2
# echo "y" | "$sdkTools/android" update sdk -u -a -t 31 # SDK Platform Android 6.0, API 23, revision 3
# echo "y" | "$sdkTools/android" update sdk -u -a -t 53 # Android TV Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 54 # Android Wear ARM EABI v7a System Image, Android API 24, revision 1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 55 # Android Wear Intel x86 Atom System Image, Android API 24, revision 1
# echo "y" | "$sdkTools/android" update sdk -u -a -t 57 # ARM EABI v7a System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 58 # Intel x86 Atom_64 System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 59 # Intel x86 Atom System Image, Android API 24, revision 6
# echo "y" | "$sdkTools/android" update sdk -u -a -t 153 # Android Support Repository, revision 36
# echo "y" | "$sdkTools/android" update sdk -u -a -t 160 # Google Play services, revision 32
# echo "y" | "$sdkTools/android" update sdk -u -a -t 161 # Google Repository, revision 32
# Downloads the constraint-layouts files from Artifactory
wget --user=${A_USER} --password=${A_PASS} https://artifactory.company.net/android-tmp/m2repository.tar.gz -O -| tar zfxv - -C "$gradleUserHome/android-sdk-linux/extras/"
"""
请注意，我在这里使用驼峰式表示法来区分 Groovy 变量和 shell 变量，当然您也可以使用相同的大写表示法。此外，您会注意到 PATH='$PATH:$gradleUserHome...，其中 $PATH 被转义为 $PATH，因为这次我们使用的是 shell 变量...