在Jenkins管道中使用Maven版本插件提升版本时出现错误的替换错误 [英] Getting bad substitution error when bumping up version using maven versions plugin in Jenkins pipeline

问题描述

在我的jenkins管道中运行此命令时，我收到一个严重的替换错误

I get a bad substitution error when I run this command in my jenkins pipeline

sh 'mvn build-helper:parse-version versions:set \
-DnewVersion=${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.nextIncrementalVersion}-SNAPSHOT \
-DgenerateBackupPoms=false \
-DprocessAllModules \
-DgenerateBackupPoms=false'

在这种情况下，这是错误消息-

This is the error message in this case -

[code]运行shell脚本

[code] Running shell script

/apps/jenkins/latest/workspace/ess-holani_master-3YNVBB6LFQA3QFK5NHYV57DW5HGSNALVGFJTJ4D6T72QVPJG4CDA/code@tmp/durable-374bc417/script.sh: 第2行: -DnewVersion = $ {parsedVersion.majorVersion}.$ {parsedVersion.minorVersion}.$ {parsedVersion.nextIncrementalVersion}-快照: 错误的替换

/apps/jenkins/latest/workspace/ess-holani_master-3YNVBB6LFQA3QFK5NHYV57DW5HGSNALVGFJTJ4D6T72QVPJG4CDA/code@tmp/durable-374bc417/script.sh: line 2: -DnewVersion=${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.nextIncrementalVersion}-SNAPSHOT: bad substitution

脚本返回了退出代码1

script returned exit code 1

但这可行->

sh 'mvn build-helper:parse-version versions:set \
-DnewVersion=\\\${parsedVersion.majorVersion}.\\\${parsedVersion.minorVersion}.\\\${parsedVersion.nextIncrementalVersion}-SNAPSHOT \
-DgenerateBackupPoms=false \
-DprocessAllModules \
-DgenerateBackupPoms=false'

此命令可以按预期提高我的pom版本.

This command bumps up my pom version as expected.

运行上述命令时登录jenkins shell

Logs on jenkins shell when I run the above command

[code]运行shell脚本

[code] Running shell script

mvn构建帮助器:解析版本:set'-DnewVersion = $ {parsedVersion.majorVersion}.$ {parsedVersion.minorVersion}.$ {parsedVersion.nextIncrementalVersion} -SNAPSHOT' -DgenerateBackupPoms = false -DprocessAllModules -DgenerateBackupPoms = false

mvn build-helper:parse-version versions:set '-DnewVersion=${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.nextIncrementalVersion}-SNAPSHOT' -DgenerateBackupPoms=false -DprocessAllModules -DgenerateBackupPoms=false

在这里使用双引号也可以-

Using double quotes also work here -

sh "mvn build-helper:parse-version versions:set \
-DnewVersion=\\\${parsedVersion.majorVersion}.\\\${parsedVersion.minorVersion}.\\\${parsedVersion.nextIncrementalVersion}-SNAPSHOT \
-DgenerateBackupPoms=false \
-DprocessAllModules \
-DgenerateBackupPoms=false"

我想了解为什么我们需要在此脚本中添加一个额外的'\\\'吗?

I want to understand why do we need to add an extra '\\\' in this script ?

迈克尔·沃克斯(Michael Works)提出的答案.

Answer suggested by michael works .

我也尝试过

sh "mvn build-helper:parse-version versions:set \
-DnewVersion='\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion}-SNAPSHOT' \
-DgenerateBackupPoms=false \
-DprocessAllModules \
-DgenerateBackupPoms=false"

我在结尾处的\结束前删除了\.这也起作用.

I removed \ before the closing ' at the end . This also worked.

推荐答案

这里的问题是，您使用的是解释器和编译器的三层，并且它们对字符串中的变量替换使用相同的语法:"$ {myvar}".

The issue here is that you are using three layers of interpreters and compilers and all use the same syntax for variable substitutions in strings: "${myvar}".

1. 首先是Groovy，由于它不知道任何名为parsedVersion.minorVersion的变量，因此会给您带来不好的替代.您可以使用'而不是"来防止Groovy尝试尝试使用\逃避$.但是Groovy会将\$作为$传递给\\\$和将\\\$作为\$传递给下一个实例.
2. 第二个是壳牌.同样，您可以选择使用'或转义.
3. Maven，这就是您要替换的$

1. First there is Groovy, which would give you a bad substitution since it does not know any variable named parsedVersion.minorVersion. You can use 's instead of "s to prevent Groovy to try that or escape the $ with a \. Groovy however will pass \$ as $ and \\\$ as \$ to the next instance.
2. Second there is the Shell. Again you have the option to use ' or to escape.
3. Maven and that's the one which you'd like to do the replacement $

如果您在版本字符串附近使用'，我认为可以减少混乱:

I think you could go with less confusion, if you'd use ' around your version string:

sh "mvn build-helper:parse-version versions:set \
  -DnewVersion='\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion}-SNAPSHOT' \
  -DgenerateBackupPoms=false \
  -DprocessAllModules \
  -DgenerateBackupPoms=false"

或使用' s的一个，因此我们需要对'进行转义，但无需对$ s进行任何转义:

or this one using 's so we need to escape the 's but don't need to do any escaping on the $s:

sh 'mvn build-helper:parse-version versions:set \
  -DnewVersion=\'${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.nextIncrementalVersion}-SNAPSHOT\' \
  -DgenerateBackupPoms=false \
  -DprocessAllModules \
  -DgenerateBackupPoms=false'

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