运行Gradle'exec'时指定'PATH'环境不起作用

Question

我尝试在 Gradle 版本中调用npm。 npm已通过homebrew安装到/usr/local/bin。在执行时，gradle将无法找到npm。

但是在执行npm命令后添加 PATH 环境变量后总是失败。

我唯一的解决方法是使用npm的绝对路径，在Linux中使用相同的gradle脚本是没有意义的。

有没有人遇到过类似的问题？我应该打开gradle票吗？

以下是 build.gradle ，

import org.gradle.api.tasks.Exec
import org.apache.tools.ant.taskdefs.condition.Os

ext {
        npmCommand = Os.isFamily(Os.FAMILY_WINDOWS) ? 'npm.cmd' : 'npm'
        npmPath = Os.isFamily(Os.FAMILY_WINDOWS) ? '' : '/bin/:/usr/bin/:/usr/local/bin/'
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.4'
}
// Install packages from package.json
task npm(type: Exec) {
        description = "Grab NodeJS dependencies (from package.json)"
        environment PATH: npmPath
        workingDir = 'src/webapp'
        commandLine = [npmCommand, "install"]
        inputs.file "src/webapp/package.json"
}

以下是gradle的完整输出，

./gradlew npm -S
:npm FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':npm'.
> A problem occurred starting process 'command 'npm''

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':npm'.
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
    at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
    at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
    at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
    at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
    at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
    at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
    at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
    at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:310)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88)
    at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
    at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
    at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
    at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
    at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:90)
    at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:49)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
    at org.gradle.util.Swapper.swap(Swapper.java:38)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:66)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:71)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.gradle.process.internal.ExecException: A problem occurred starting process 'command 'npm''
    at org.gradle.process.internal.DefaultExecHandle.setEndStateInfo(DefaultExecHandle.java:196)
    at org.gradle.process.internal.DefaultExecHandle.failed(DefaultExecHandle.java:325)
    at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:83)
    ... 5 more
Caused by: net.rubygrapefruit.platform.NativeException: Could not start 'npm'
    at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:27)
    at net.rubygrapefruit.platform.internal.WrapperProcessLauncher.start(WrapperProcessLauncher.java:36)
    at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:65)
    ... 5 more
Caused by: java.io.IOException: Cannot run program "npm" (in directory "/Users/kane/git/videome/wechat/src/webapp"): error=2, No such file or directory
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
    at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:25)
    ... 7 more
Caused by: java.io.IOException: error=2, No such file or directory
    at java.lang.UNIXProcess.forkAndExec(Native Method)
    at java.lang.UNIXProcess.<init>(UNIXProcess.java:248)
    at java.lang.ProcessImpl.start(ProcessImpl.java:134)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
    ... 8 more


BUILD FAILED

Total time: 1.139 secs

如果更改为npm的绝对路径

，任务将正常运行

npmCommand = Os.isFamily(Os.FAMILY_WINDOWS) ? 'npm.cmd' : '/usr/local/bin/npm'

Answer 1

升级我的操作系统后遇到了同样的问题。对我来说，修复是检查我的PATH并停止gradle守护进程。之后，守护进程重新评估路径。 E.g：

gradle --stop
gradle npm

Answer 2

当根项目目录中没有src / webapp目录时，我收到错误。

我最终得到了以下内容：

task npm(type: Exec) {
        description "Grab NodeJS dependencies (from package.json)"
        workingDir 'src/webapp'
        commandLine npmCommand, "install"
        doLast {
            def d1 = project.file('src/webapp')
            println "d1: $d1, ${d1.exists()}"
        }
}

不需要环境修复，只要首次创建src / webapp目录。我不知道你的inputs.file值是做什么的，npm会查找src / webapp / package.json，因为在任务中设置了workingDir，所以我删除了它。

此外，您不需要为Exec导入。

如果您将./gradlew npm -S的输出添加到您的问题中，我会将其与我的失败进行比较，看看我是否可以进一步提供帮助。

编辑：我已经为任务添加了一个doLast块。它应该找到src / webapp目录并打印它的位置和＆＃34; true＆＃34;如果目录在任务运行期间存在则存在。输出说了什么？

Answer 3

只需更改为

ext {
    npmCommand = Os.isFamily(Os.FAMILY_WINDOWS) ? 'npm.cmd' : '/usr/local/bin/npm'
    npmPath = Os.isFamily(Os.FAMILY_WINDOWS) ? '' : '/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
}

Answer 4

当尝试从Android Studio中的gradle文件运行yarn命令时，我遇到了类似的问题。对我来说解决的办法是通过向org.gradle.daemon=false添加~/.gradle/gradle.properties来禁用gradle守护程序。该问题似乎是由gradle守护程序以某种方式缓存了环境状态引起的。如果您不想在gradle.properties中添加永久性内容，也可以尝试按照上面的建议杀死gradle守护程序。

aandriyc在此线程https://github.com/palantir/gradle-docker/issues/162中建议的解决方案