我一直坚持在Jenkins管道的Shell步骤中访问Groovy变量。
我读了Access a Groovy variable from within shell step in Jenkins pipeline和Pass groovy variable to shell script，但是无法按预期工作。
这是我的管道:
// While you can't use Groovy's .collect or similar methods currently, you can
// still transform a list into a set of actual build steps to be executed in
// parallel.
// Our initial list of strings we want to echo in parallel
def tempList = dusboard.split(',').collect{it as String}
def stringsToEcho = ["a", "b", "c", "d"]
// The map we'll store the parallel steps in before executing them.
def stepsForParallel = tempList.collectEntries {
["echoing ${it}" : transformIntoStep(it)]
}
// Actually run the steps in parallel - parallel takes a map as an argument,
// hence the above.
parallel stepsForParallel
// Take the string and echo it.
def transformIntoStep(tmpBoard) {
// We need to wrap what we return in a Groovy closure, or else it's invoked
// when this method is called, not when we pass it to parallel.
// To do this, you need to wrap the code below in { }, and either return
// that explicitly, or use { -> } syntax.
return {
node('tb-tftp-server') {
echo tmpBoard
stage('install') {
env.board = tmpBoard
lock(resource: "$tmpBoard") {
sh '''
hwjs="hw-\${board}.js"
echo "1 $hwjs"
hwjs="hw-\${tmpBoard}.js"
echo "2 $hwjs"
'''
}
lock(resource: "$tmpBoard") {
sh '''
echo ''' + tmpBoard + ' abcd' '''
'''
}
}
}
}
}
如果我使用 dus011，dus012 作为输入参数(即变量dusboard = dus011，dus012)执行它，则输出
[echoing dus011] Trying to acquire lock on [dus011]
[echoing dus011] Lock acquired on [dus011]
[Pipeline] [echoing dus011] {
[Pipeline] [echoing dus012] lock
[echoing dus012] Trying to acquire lock on [dus012]
[echoing dus012] Lock acquired on [dus012]
[Pipeline] [echoing dus012] {
[Pipeline] [echoing dus011] sh
[echoing dus011] [lionel_test3] Running shell script
[echoing dus011] + hwjs=hw-dus012.js
[echoing dus011] + echo '1 hw-dus012.js'
[echoing dus011] 1 hw-dus012.js
[echoing dus011] + hwjs=hw-.js
[echoing dus011] + echo '2 hw-.js'
[echoing dus011] 2 hw-.js
[Pipeline] [echoing dus012] sh
[echoing dus012] [lionel_test3@2] Running shell script
[Pipeline] [echoing dus011] }
[echoing dus011] Lock released on resource [dus011]
[Pipeline] [echoing dus011] // lock
[echoing dus012] + hwjs=hw-dus012.js
[echoing dus012] + echo '1 hw-dus012.js'
[echoing dus012] 1 hw-dus012.js
[echoing dus012] + hwjs=hw-.js
[echoing dus012] + echo '2 hw-.js'
[echoing dus012] 2 hw-.js
[Pipeline] [echoing dus011] lock
[echoing dus011] Trying to acquire lock on [dus011]
[echoing dus011] Lock acquired on [dus011]
[Pipeline] [echoing dus011] {
[Pipeline] [echoing dus011] sh
[echoing dus011] [lionel_test3] Running shell script
[Pipeline] [echoing dus012] }
[echoing dus012] Lock released on resource [dus012]
[Pipeline] [echoing dus012] // lock
[echoing dus011] + echo dus011 abcd
[echoing dus011] dus011 abcd
[Pipeline] [echoing dus012] lock
[echoing dus012] Trying to acquire lock on [dus012]
[echoing dus012] Lock acquired on [dus012]
[Pipeline] [echoing dus012] {
[Pipeline] [echoing dus012] sh
[echoing dus012] [lionel_test3@2] Running shell script
[Pipeline] [echoing dus011] }
[echoing dus011] Lock released on resource [dus011]
[Pipeline] [echoing dus011] // lock
[Pipeline] [echoing dus011] }
[echoing dus012] + echo dus012 abcd
[echoing dus012] dus012 abcd
[Pipeline] [echoing dus011] // stage
[Pipeline] [echoing dus011] }
[Pipeline] [echoing dus011] // node
[Pipeline] [echoing dus011] }
[echoing dus011] Failed in branch echoing dus011
[Pipeline] [echoing dus012] }
[echoing dus012] Lock released on resource [dus012]
[Pipeline] [echoing dus012] // lock
[Pipeline] [echoing dus012] }
[Pipeline] [echoing dus012] // stage
[Pipeline] [echoing dus012] }
[Pipeline] [echoing dus012] // node
[Pipeline] [echoing dus012] }
[echoing dus012] Failed in branch echoing dus012
[Pipeline] // parallel
[Pipeline] End of Pipeline
Also: java.lang.NullPointerException: Cannot get property '
' on null object
java.lang.NullPointerException: Cannot get property '
' on null object
我们可以看到lock命令的面板正确:一次 dus011 ，另一次 dus012 ==>好
但这是错误的 [echoing dus011] + hwjs = hw-dus012.js ，应该是 hw-dus011.js ，而不是 hw-dus012.js 。我认为这是因为它是一个环境变量，第二个阶段//覆盖了第一个==>不好
董事会名称的其他印刷品有误。
所以我尝试使用'''++'语法。听起来不错，因为这次的董事会名称与 [echoing dus011] dus011 abcd 和 [echoing dus012] dus012 abcd 相匹配，但是与Java异常匹配:(
我的错误在哪里？怎么解决呢？
感谢您的帮助
最佳答案
我相信这可能会发生，因为在并行块中，您正在通过执行env来修改全局env.board = tmpBoard变量。您基于写/读访问在这些块之间存在竞争条件。
我认为执行此操作的最佳方法是改为使用块内的withEnv隔离设置环境的上下文。
代替
env.board = tmpBoard
你可以做
withEnv(["board=$tmpBoard"]) {
// block of code needing board as environment variable
}